Slab Leak Detection & Repair in Savannah, GA

How Slab Leak Detection & Repair Works in Savannah

Slab leak repair in Savannah follows a two-phase approach: precise detection first, then method selection based on what we find. Detection must happen before any concrete breaking or invasive work—without knowing the exact leak location and pipe condition, you risk unnecessary demolition, higher costs, and incomplete fixes. In Savannah's coastal environment where salt air and clay soil accelerate corrosion, this diagnostic accuracy is especially critical. The process typically takes 1-3 hours for detection, then anywhere from one day for a simple reroute to two weeks for spot repair with full concrete curing.

Phase 1: Pinpointing the Leak Location

We select the detection method based on your home's characteristics and the symptoms you're experiencing. Electronic leak detection works best for Savannah homes with accessible copper or PEX supply lines under slab-on-grade foundations—we pressurize your water lines, then use electromagnetic pipe locators and ground microphones to trace the leak, marking the floor within 1-2 feet of the actual failure point. For historic district properties or homes with post-tension slabs common in newer Savannah developments, acoustic detection provides non-invasive pinpointing by amplifying the sound frequency of pressurized water escaping the pipe. Thermal imaging is effective only for hot water line leaks, using infrared cameras to identify temperature anomalies through your flooring—particularly useful during Savannah's cooler months when temperature contrast is strongest. If you're experiencing multiple symptoms or we suspect several weak points in aging pipes, we start with static pressure testing to confirm a leak exists, then deploy video pipe inspection through cleanouts to assess overall system integrity before choosing the invasive detection approach.

The detection output you receive includes the exact leak location marked on your floor with tape or chalk, photo documentation of the detection process and findings, and a pipe condition assessment that tells you whether this is an isolated failure or part of systemic corrosion requiring broader intervention. Detection costs in Savannah range from $300-$1,000 depending on your home's size, foundation accessibility, and whether multiple methods are needed—homes in the Historic District with limited access or older properties requiring video inspection typically fall on the higher end. Savannah's expansive clay soil affects acoustic detection effectiveness because the clay dampens sound waves, sometimes requiring closer sensor spacing than in sandier Georgia regions. The high water table common throughout Chatham County can also complicate detection by masking smaller leaks until they've grown large enough to overcome groundwater pressure.

Phase 2: Repair Method Selection

Once we've located the leak and assessed your pipe condition, we present your repair options along the spectrum from least invasive to most comprehensive. Method selection depends on several factors: the leak's location beneath your floor (under finished hardwood in the Historic District versus garage concrete), the condition of surrounding pipe (isolated pinhole leak versus widespread pitting corrosion from saltwater intrusion), your budget and timeline priorities, your flooring type and value, and whether you're planning long-term ownership or preparing to sell. For a single leak in otherwise sound pipe, trenchless epoxy lining creates a permanent seal without breaking concrete and works well for Savannah homes where preserving original tile or historic flooring is essential—completed in 1-2 days with lifetime warranty on the lined section. If your pipes show systemic corrosion common in older Savannah copper installations exposed to coastal salt air, copper-to-PEX repiping eliminates future under-slab failures by rerouting new lines through your attic or crawlspace—this takes 2-5 days but provides 25-year peace of mind.

For homes where exterior access is available and interior floors are too valuable to disturb, tunneling under your foundation allows us to reach the leak point and make repairs without interior demolition—Savannah's clay-rich soil provides stable tunneling conditions compared to sandier coastal Georgia soils, though the process is labor-intensive and typically takes 3-7 days. Spot repair with concrete restoration costs less upfront ($1,500-3,500 versus $4,000-12,000 for full repipe) but requires breaking and replacing the concrete over the leak location, then waiting 1-2 weeks for full concrete cure before flooring restoration. Simple rerouting around the leak by installing new pipe above the slab offers the fastest solution (4-8 hours same-day service) for $800-2,500, though this doesn't address underlying corrosion elsewhere in your system.

Savannah-specific considerations affect method selection: Historic District properties require non-invasive approaches that won't trigger exterior review requirements, slab-on-grade foundations common in older Savannah neighborhoods allow easier access for spot repair than post-tension slabs in newer developments, homes with accessible attics make PEX repiping straightforward while pier-and-beam foundations in some coastal areas complicate routing options, and the prevalence of saltwater intrusion means copper repiping often isn't recommended even for partial repairs—PEX or epoxy lining provide better long-term protection against coastal corrosion.

Need slab leak detection in Savannah? Call +1-866-779-0723 for same-day service and expert method recommendations based on your home's foundation type and the coastal conditions affecting your property.

Slab Leak Detection Methods for Savannah Homes

Electronic Leak Detection in Savannah

Electronic leak detection uses electromagnetic pipe locators combined with sensitive ground microphones to pinpoint leaks without breaking concrete. The technician pressurizes your plumbing system to 80-100 PSI, then sweeps an electromagnetic transmitter across your floor. When the transmitter's signal encounters metal pipe (copper or galvanized), it creates a detectable electromagnetic field. Ground microphones amplify the sound of water escaping under pressure, allowing us to triangulate the leak location within 1-2 feet.

During detection, you'll see us moving methodically across your floors with handheld equipment, marking potential leak locations with tape or chalk. The process is completely non-invasive—no drilling, no concrete breaking, no floor removal. We'll photograph the marked locations and provide you with a detailed report showing exactly where the leak is relative to walls, fixtures, and foundation elements.

Electronic detection works best for copper and PEX supply lines under accessible slab-on-grade foundations—the most common residential foundation type in Savannah. It's the right choice for pressurized water lines (hot or cold supply, not drain leaks) when we need pinpoint accuracy before repair decisions. This method excels in Savannah's historic district homes where floor preservation is critical and invasive exploratory work would damage irreplaceable tile or hardwood.

Savannah's expansive clay soil presents a unique challenge for electronic detection. When clay becomes saturated from a leak, it changes the soil's electromagnetic properties and can scatter the transmitter signal. The high water table near coastal areas also creates electromagnetic interference. These factors mean detection may take longer in marsh-proximate neighborhoods like Isle of Hope or areas with poor natural drainage. Salt air corrosion can also complicate detection when pipes have significant external pitting—the electromagnetic signal may be inconsistent along corroded sections.

Accuracy with electronic detection in Savannah typically falls within 1-2 feet of the actual leak point. The method cannot detect drain line leaks (no pressure to create sound), sewer leaks, or leaks in non-metallic pipe materials like older clay drain lines. In homes with post-tension cable foundations (less common in historic Savannah but present in some newer developments), the cables interfere with electromagnetic signals and acoustic detection becomes the better choice.

The detection process takes 1-2 hours for an average single-story home, longer for larger homes or properties with complex plumbing layouts. You can remain in your home during detection—there's no health hazard, noise beyond normal conversation levels, or disruption to daily activities.

Cost for electronic leak detection in Savannah ranges from $300-$800 depending on your home's square footage, accessibility, and whether we're searching for one leak or multiple potential failure points. Factors that increase cost include crawl space plumbing (requires accessing tight spaces with equipment), multi-story homes (more pipe routing to trace), and properties with suspected multiple leaks requiring systematic elimination testing.

We recommend electronic detection as the first-line method for Savannah homes built between 1970-2000 with copper under-slab plumbing. It's the fastest, most cost-effective way to confirm a leak location before making repair decisions. For historic properties where floor preservation is paramount, this method provides the accuracy needed to minimize concrete removal or choose a rerouting approach that avoids demolition entirely.

Acoustic Leak Detection for Deep Foundations

Acoustic leak detection uses specialized sound amplification equipment and vibration sensors to locate leaks by listening for the distinct frequency of water escaping under pressure. Ground microphones placed at strategic points across your floor amplify sounds in the 500-3,000 Hz range—the frequency signature of pressurized water leaks. Advanced systems use correlation technology, where multiple sensors compare the sound's arrival time at different locations to triangulate the leak's exact position.

The technician places multiple sensors across your floor in a grid pattern, typically 6-10 sensors for a standard home. Each sensor captures sound data while we pressurize the system. Computer software analyzes the data, calculating the distance from each sensor to the leak based on sound travel time through concrete and soil. The result is a three-dimensional map showing the leak location in relation to your foundation depth and lateral position.

Acoustic detection is the preferred method for post-tension slab foundations, which use embedded steel cables under tension to reinforce concrete. These cables interfere with electromagnetic detection equipment, making acoustic methods the only reliable non-invasive option. It's also ideal for deep slab foundations (8+ inches thick) common in commercial properties or custom homes, where electronic signals may not penetrate effectively to pipes below.

In Savannah's coastal environment, acoustic detection faces specific challenges from the region's geology. The city's 21+ distinct soil varieties—predominantly clay-rich soils mixed with sandy loam in marsh-proximate areas—affect sound transmission differently. Clay soil, when saturated from existing leak activity, dampens high-frequency sounds, requiring closer sensor spacing and longer detection time to compensate. The shallow water table in many Savannah neighborhoods (often 3-6 feet below grade near tidal areas) creates ambient groundwater noise that sophisticated filtering must eliminate from the acoustic data.

The process takes 2-3 hours for standard residential properties, longer for homes with complex floor plans or when environmental noise (traffic on nearby streets, HVAC systems, appliance operation) interferes with detection. We typically schedule acoustic detection during quieter periods and ask you to turn off appliances and avoid water use during the test.

Acoustic detection pinpoints leaks within 1-3 feet depending on soil density and concrete thickness. It's more effective than electronic detection in Savannah's historic district homes with thick tabby concrete foundations (a coastal building material combining oyster shells, lime, sand, and water used in older construction). The method works for pressurized supply lines only—it cannot detect slow drain leaks or leaks in non-pressurized systems.

Cost ranges from $400-$900 in Savannah, with variables including foundation depth (deeper slabs require more sophisticated equipment and analysis), home size, and soil conditions. Properties on Whitemarsh Island or Skidaway Island where sandy soil provides better sound transmission may cost less than downtown historic properties with dense clay subsoil.

We combine acoustic with electronic detection in complex cases—homes where initial pressure testing confirms a leak but location is unclear, or properties suspected of having multiple leaks. The combination allows us to use acoustic detection for broad location identification, then electronic detection for final pinpointing before repair. This approach costs more upfront ($700-1,200 total) but eliminates the risk of breaking concrete in the wrong location, which can add $500-1,500 in unnecessary restoration costs.

Thermal Imaging Leak Detection

Thermal imaging uses infrared cameras to detect temperature differences caused by hot water leaking under your slab. The camera creates a thermal map of your floor surfaces, identifying areas where surface temperature is 2-5 degrees warmer than surrounding areas—a clear indication of hot water pipe failure below. Modern infrared cameras detect temperature differentials as small as 0.1°C, making them highly sensitive to hidden hot water leaks that create gradual warming patterns.

During inspection, we scan your floors systematically with a handheld infrared camera, capturing thermal images of carpeting, tile, hardwood, and other floor coverings. Hot water leaks create distinct "thermal blooms"—concentrated warm areas that appear as bright spots on the thermal image. The camera can detect these signatures through most flooring materials without removal, though thick carpet padding or insulated subfloors may reduce detection sensitivity.

Thermal imaging is most effective for hot water line leaks, particularly main hot water lines running from your water heater to distant fixtures. It works well in Savannah during cooler months (November-March) when indoor heating creates greater temperature contrast between leaked hot water and ambient conditions. The method excels at detecting radiant heat loss from chronically leaking hot water pipes—situations where copper corrosion has created a pinhole leak that's been active for weeks or months.

The technology has clear limitations: it only detects hot water leaks. Cold water supply leaks, drain leaks, and sewer leaks produce no thermal signature and remain invisible to infrared detection. In Savannah's humid coastal climate, summer heat and high ambient temperatures reduce thermal contrast, making detection less reliable June-September when floor surfaces and leaked water may be similar temperatures. Thermal imaging also cannot detect leaks below thick concrete (8+ inches) or heavily insulated floors where heat dissipates before reaching the surface.

The scanning process takes 1 hour for standard homes, including time for the thermal camera to calibrate and for us to document findings with both thermal and standard photographs. You'll see a real-time thermal display showing temperature variations, with the hottest areas highlighted in red/yellow and cooler areas in blue/green.

Thermal imaging provides general leak location (within 2-4 feet) rather than pinpoint accuracy. It identifies the area requiring further investigation but typically needs confirmation with electronic or acoustic detection before repair. In practice, we use thermal imaging as a first-pass diagnostic tool—if it reveals a hot spot, we follow up with electronic detection to pinpoint the exact leak location within 1-2 feet.

Cost in Savannah ranges from $500-1,000 depending on home size and whether thermal imaging is used alone or combined with other detection methods. When used as a preliminary screening tool before electronic detection, the combined service costs $650-1,200 but provides high confidence in leak location before any concrete breaking.

We recommend thermal imaging when you've identified a warm floor spot yourself and want visual confirmation before authorizing repair. It's particularly useful in Savannah's Victorian District, Ardsley Park, and other historic neighborhoods where homeowners want maximum detection confidence before disturbing original flooring. The method provides compelling visual evidence for insurance claims, showing clear thermal anomalies that document the leak's existence and approximate location.

Pressure Testing & Video Pipe Inspection

Static pressure testing confirms whether a leak exists in your plumbing system before we deploy invasive detection methods. We close all fixtures, cap the system, and pressurize water lines to 80-100 PSI using a hydraulic test pump. Over 15-30 minutes, we monitor the pressure gauge. A pressure drop indicates water escaping somewhere in the system—definitive proof of a leak requiring location and repair. Georgia plumbing code requires pressure testing to 150 PSI for 15 minutes on new installations, but for diagnostic testing on existing systems, we use lower pressures to avoid stressing already-compromised pipes.

The test helps differentiate between active leaks and symptoms that may have other causes. High water bills could indicate toilet flappers, irrigation leaks, or actual slab leaks. Low water pressure might stem from corroded galvanized pipes rather than leaks. Pressure testing eliminates guesswork—if pressure holds steady, there's no pressurized leak and we look elsewhere. If pressure drops, we know a leak exists and proceed to pinpoint detection.

Video pipe inspection uses waterproof cameras on flexible cables inserted through cleanouts, drain openings, or removed fixtures. The camera feeds live video to a monitor, showing your pipe's interior condition in real time. We see corrosion patterns, mineral buildup, root intrusion in sewer lines, and actual leak points when visible from inside the pipe. For drain and sewer lines (where pressure testing and acoustic detection don't work), video inspection is the primary diagnostic method.

In Savannah homes, video inspection reveals the extent of copper pipe corrosion caused by salt air and chloride intrusion. We see pitting patterns on the pipe's interior—small divots where chloride ions have penetrated the protective oxide layer. Severe pitting (40%+ wall thickness loss) indicates the pipe is near failure even if not yet leaking. This information helps you make repair-vs-repipe decisions: if video shows widespread corrosion, whole-house repiping may be more cost-effective than repeated slab leak repairs.

Video inspection works best for accessible pipe sections with cleanout access—typically drain lines, sewer laterals, and some supply line sections where we can remove fixtures for camera insertion. The method cannot inspect supply lines deep under slabs without access points. Camera diameter (typically 1-2 inches) limits inspection to pipes 2 inches or larger; smaller diameter supply lines aren't accessible with standard equipment.

The process takes 2-4 hours for comprehensive pressure testing and video inspection of main lines. For pressure testing alone (confirming leak existence), budget 30-60 minutes. Video inspection of your home's main sewer line from cleanout to street connection takes 30-90 minutes depending on line length and the number of junctions, bends, and potential problem areas requiring detailed examination.

Pressure testing costs $250-600 in Savannah depending on system complexity—homes with multiple zones, irrigation systems, or commercial properties with extensive plumbing require longer testing time and more sophisticated isolation procedures. Video inspection runs $300-800 for residential sewer lines, with cost increasing for longer runs (over 100 feet from house to street connection) or when multiple inspection points are needed.

We recommend pressure testing before authorizing expensive detection work if you're uncertain whether you have a slab leak. The test definitively answers "is there a leak?" before you spend $400-800 on pinpoint detection. Video inspection is essential when you're deciding between spot repair and whole-house repiping—seeing the full extent of pipe deterioration helps you make an informed decision about whether fixing one leak solves your problem or whether the entire system is compromised and needs replacement.

Need leak detection in Savannah? Call +1-866-779-0723 for accurate pinpointing.

Slab Leak Repair Options Compared

Trenchless Epoxy Pipe Lining

Epoxy pipe lining creates a permanent pipe-within-a-pipe seal without breaking your concrete slab or removing flooring. The process begins with thorough pipe interior cleaning using hydrojetting—high-pressure water (3,000-4,000 PSI) removes corrosion, mineral buildup, and debris that would prevent epoxy adhesion. After drying the line with compressed air, we saturate a felt liner with two-part epoxy resin, then pull the liner through the pipe using cable or air inversion. The epoxy-saturated liner conforms to the pipe's interior, creating a smooth, jointless coating. Ambient curing takes 4-8 hours depending on temperature; we may use hot water circulation to accelerate the cure in cooler months.

The result is a structurally sound pipe with restored flow capacity and corrosion resistance. Epoxy lining repairs not just the current leak point but the entire line section, preventing future failures in adjacent areas where corrosion may be developing. The epoxy coating is NSF-61 certified for potable water contact and creates a barrier between Savannah's corrosive water chemistry and the remaining copper pipe wall.

Epoxy lining works best for accessible pipe sections—hot water lines from water heater to fixtures, cold supply mains, and horizontal runs under slabs. It's the ideal solution when your primary goal is floor preservation. Savannah homeowners with original hardwood in Victorian District homes, historic tile in downtown properties, or expensive stone flooring in Ardsley Park choose epoxy lining to avoid demolition costs and maintain their home's character.

In Savannah's coastal environment, epoxy lining addresses the root cause of copper pipe failure: chloride-induced pitting corrosion. Salt air introduces chloride ions that penetrate copper's protective oxide layer, creating pinhole leaks. The epoxy barrier eliminates future chloride contact, extending pipe life by decades. The method is particularly effective in homes 15-30 years old where copper pipes show early corrosion but haven't yet failed at multiple points.

The main advantage is speed and minimal disruption. We access pipes through existing cleanouts or by removing one or two fixtures rather than breaking concrete. Timeline is 1-2 days for typical residential applications—Day 1 for hydrojetting, measurement, and liner preparation; Day 2 for epoxy installation and curing. You can use your plumbing normally 8-12 hours after curing completes. Your floors remain intact, so there's no concrete pouring, no 1-2 week cure time before walking on repaired areas, and no flooring restoration costs.

Epoxy lining has limitations. The existing pipe must retain at least 40% wall thickness—if corrosion has eaten through most of the copper, the pipe won't provide adequate structural support for the epoxy liner. Video inspection reveals whether your pipes meet this threshold. The method requires accessible pipe ends for liner insertion; if your home lacks cleanouts or if pipes are embedded in concrete with no access points, lining isn't feasible without creating access (which involves some concrete cutting).

Savannah's slab-on-grade foundations (common in single-story homes throughout the city) work well with epoxy lining. Post-tension slab homes in newer developments can also be lined, but accessing pipes requires careful planning to avoid cutting tension cables during cleanout installation. Historic district homes with tabby concrete foundations may need specialized cleanout installation to preserve the integrity of these shell-concrete structures.

Epoxy lining isn't suitable for severely corroded pipes with multiple active leaks in different sections, drain lines with extensive root intrusion, or pipes with collapsed sections. In these cases, the damage is too extensive for lining to provide a reliable long-term solution, and repiping becomes necessary.

The process begins with video inspection to assess pipe condition and confirm lining feasibility. We measure the pipe run, calculate required epoxy quantities, and identify optimal access points. On installation day, we hydro-jet the line to remove all loose scale and corrosion products, creating a clean substrate for epoxy adhesion. After drying, we pull the epoxy-saturated liner through the pipe, position it correctly, and inflate it against the pipe walls. Curing time varies with ambient temperature—in Savannah's humid climate, we typically see 6-8 hour cure times in summer, 8-12 hours in winter.

Cost in Savannah ranges from $2,000-5,000 depending on line length and accessibility. A typical hot water main from water heater to master bathroom (30-40 feet) costs $2,500-3,500. Longer runs (50-70 feet serving multiple fixtures) run $3,500-5,000. Cost factors include the number of access points we must create (each cleanout installation adds $200-400), pipe diameter (larger pipes require more epoxy), and whether we're lining one continuous run or multiple separate sections.

Savannah-specific cost considerations include historic district review fees if exterior cleanout installation requires Historic Preservation Commission approval (rare but possible for prominent properties). Foundation type affects cost—slab-on-grade homes offer straightforward access, while pier-and-beam foundations common in some historic homes may require crawl space work that increases labor time.

We provide a lifetime warranty on epoxy-lined sections against leaks in the treated area. This warranty covers material failure and installation defects but doesn't cover untreated pipe sections or new leaks outside the lined area. If you later develop leaks in adjacent pipe runs, those require separate repair or lining.

We recommend epoxy lining when you have a single confirmed leak or early-stage corrosion detected on video, your existing pipes retain sufficient wall thickness (verified by inspection), and floor preservation is a priority. It's the right choice for Savannah homeowners with high-value flooring, historic properties where maintaining original materials matters, or those who want a permanent fix without the disruption of repiping or concrete demolition. Epoxy lining also makes sense economically when the leak is in an isolated section and video inspection shows the rest of your plumbing system is in good condition.

Copper to PEX Repiping

Copper to PEX repiping installs a new plumbing system using cross-linked polyethylene (PEX) tubing, routing pipes through your attic, crawl space, or wall cavities while abandoning the old under-slab copper lines. The process starts with installing a PEX manifold—a distribution panel with individual shutoff valves for each fixture. From this manifold, we run dedicated PEX lines (typically 3/8" or 1/2" diameter) to each fixture through the most accessible route, usually attic spaces in single-story homes or interior walls in multi-story structures.

PEX offers significant advantages over copper for Savannah's coastal environment. The material is immune to corrosion—salt air, chloride ions, and acidic water that destroy copper have no effect on PEX. It's flexible, allowing continuous runs from manifold to fixture without joints or fittings where leaks typically develop. PEX expands slightly when frozen, resisting burst damage from rare Savannah freezes. The material carries a 25-year manufacturer warranty and has a proven track record in plumbing systems nationwide since the 1990s.

A reroute (also called partial repipe) replaces only the leaking section, installing PEX from your main shutoff or water heater to the affected fixtures while leaving the rest of your copper system in place. Whole-house repiping replaces all supply lines throughout your home, eliminating all under-slab copper and installing a complete PEX manifold system. The decision between partial and whole-house repiping depends on your copper system's overall condition, discovered through video inspection and historical leak patterns.

Copper to PEX repiping is the right choice when you have multiple leaks in different locations, when your copper system is 20+ years old with visible corrosion, or when you want to permanently eliminate under-slab leak risk. In Savannah, this method is particularly common in homes built 1970-1995 with original copper plumbing now reaching end-of-life. Salt air corrosion affects all copper pipes simultaneously—if you've had one slab leak, pipes throughout your system are likely corroding and will fail within 5-10 years.

Savannah's housing stock influences repiping logistics. Single-story ranch homes common in Ardsley Park, Windsor Forest, and midtown neighborhoods typically have accessible attic space, making PEX routing straightforward. Two-story homes may require routing through interior walls, which involves opening and patching drywall in strategically chosen locations (usually closets or areas behind built-ins where repairs are less visible). Historic district homes with high ceilings and ornate plasterwork present challenges—we route through attic spaces whenever possible to avoid disturbing original plaster.

Pier-and-beam foundations common in some older Savannah homes offer ideal repiping conditions. The raised foundation provides crawl space access, allowing us to route PEX below the house without breaking concrete or running lines through living spaces. This approach minimizes interior disruption while providing easy future access for maintenance.

The main advantages are permanence and improved performance. By rerouting above the slab, you eliminate all under-slab leak risk forever. The PEX manifold system allows individual fixture shutoff without closing your main water supply—useful for future repairs or renovations. PEX's smooth interior (no mineral buildup like copper develops) often improves water pressure. The flexible tubing absorbs pressure spikes that would stress rigid copper joints, reducing fixture wear and extending appliance life.

Repiping isn't without drawbacks. It costs more upfront than spot repair or epoxy lining. PEX lines routed through attics or walls are visible in some areas (garage, utility rooms, or soffit boxes in living spaces), which some homeowners find aesthetically undesirable. The process involves cutting drywall access holes that require patching and repainting. And while the new PEX system is permanent, your old copper lines remain under the slab (depressurized and abandoned), so any existing foundation damage from prior leaks must be addressed separately.

The process timeline for whole-house repiping spans 2-5 days depending on home size and complexity. Day 1 begins with manifold installation near your main water supply (typically in garage, utility room, or exterior location). We run main PEX lines through attic spaces or designated wall chases, creating a trunk-and-branch distribution system. Days 2-3 involve connecting individual fixture drops, cutting through ceilings or walls as needed to reach kitchen sinks, bathroom vanities, toilets, showers, and laundry hookups. Day 4 focuses on pressure testing the entire system to 150 PSI per Georgia code requirements, flushing lines, and verifying proper operation at every fixture. Day 5 (if needed) handles drywall patching, texturing, and touch-up painting.

For partial reroutes affecting only hot water or cold supply to specific areas, the timeline compresses to 1-2 days. We isolate the affected section, install the reroute, and pressure test the modified system while leaving existing plumbing unchanged in unaffected areas.

Savannah building codes require permits for whole-house repiping. The City of Savannah Development Services Department issues plumbing permits through the eTRAC online system. Permit fees for residential repiping run $150-300 depending on scope. After completion, Chatham County Building Safety inspectors verify code compliance, checking for proper support spacing (PEX must be supported every 32 inches), expansion loops in long runs, proper insulation in unconditioned spaces, and correct pressure testing. We handle all permitting and schedule inspections as part of our service.

Historic district properties face additional considerations. Exterior modifications (manifold boxes visible from the street, PEX lines routing through exterior walls) may require Historic Preservation Commission review. Most repiping work qualifies for staff-level approval since it doesn't alter the building's exterior appearance, but we coordinate with HPC early in the planning process to avoid delays. Interior work in historic homes requires careful coordination to preserve original materials—we plan routing to minimize plaster damage and work with restoration contractors when repairs affect ornamental features.

Cost in Savannah varies significantly based on scope. Partial reroutes (single line from manifold to affected fixtures) run $4,000-8,000 depending on routing distance and accessibility. A hot water reroute serving kitchen, master bath, and guest bath (typical single-story home) costs $4,500-6,000. Whole-house repiping for a 1,500-2,500 square foot home ranges from $6,000-12,000. Larger homes (3,000+ sq ft), two-story layouts, or properties with limited attic access can reach $12,000-15,000.

Cost factors include home size (more fixtures = more PEX runs), accessibility (easy attic access costs less than routing through walls), foundation type (pier-and-beam crawl space routing is faster than slab-only homes), fixture count (each additional toilet, sink, or shower adds $150-300 in materials and labor), and permit/inspection fees. Historic district homes may incur review fees ($50-150) and require specialized restoration contractors for plaster repair, adding $500-1,500 to total costs.

We warranty PEX repiping for the life of your ownership on workmanship and installation. PEX tubing and fittings carry manufacturer warranties of 25 years against material defects. If a PEX connection leaks or a fitting fails due to installation error, we repair it at no charge. The warranty doesn't cover your existing copper lines (now abandoned and depressurized), fixtures, or appliances.

We recommend copper to PEX repiping when video inspection reveals widespread corrosion in your copper system, when you've experienced multiple slab leaks in different locations, or when your home is 20+ years old with original plumbing in Savannah's salt air environment. It's the right choice for homeowners planning long-term ownership (10+ years) who want to eliminate under-slab leak risk permanently rather than addressing failures one at a time. Repiping makes economic sense when spot repair costs are accumulating—if you've already spent $3,000-5,000 on previous slab leak repairs and face another leak, investing in whole-house repiping avoids future repair cycles.

Tunneling Under Foundation

Tunneling creates an excavated passage beneath your foundation, allowing direct access to leaking pipes without breaking interior concrete or disturbing flooring. A technician hand-digs a tunnel from an exterior access point (typically along your foundation perimeter) under the slab to the leak location. The tunnel is shored with plywood or metal supports to prevent collapse, creating a safe work space approximately 3 feet high and 2-3 feet wide. Once the pipe is exposed, we perform the repair—either replacing the damaged section with new copper or PEX, or installing a compression coupling over the leak point. After repair, we backfill the tunnel with excavated soil, compact it in layers, and restore exterior landscaping.

Tunneling's primary purpose is preserving high-value interior flooring. Savannah homeowners with original heart pine floors in Victorian District homes, historic tile installations downtown, or expensive marble and stone in Ardsley Park properties choose tunneling to keep irreplaceable flooring intact. The method avoids the cost and complexity of matching antique tile patterns, refinishing 100-year-old wood floors, or sourcing rare stone to patch modern installations.

Tunneling works best when leaks are located within 15 feet of your foundation perimeter. Beyond this distance, tunnel length becomes impractical—longer tunnels require more shoring, more excavation time, and greater collapse risk. The method requires exterior access along the relevant foundation wall with space for excavation equipment and soil staging (typically 10-15 feet of clear yard space).

In Savannah's coastal environment, tunneling feasibility depends heavily on soil conditions. The city's clay-rich soils (Georgia red clay and mixed clay-loam) provide stable tunneling conditions with minimal shoring required. Clay's cohesive properties mean excavated tunnel walls hold their shape, reducing collapse risk and allowing faster progress. This makes tunneling more cost-effective in Savannah than in sandy coastal areas where extensive shoring is mandatory.

However, Savannah's shallow water table complicates tunneling in low-lying areas near marshes, tidal creeks, or the Savannah River. When groundwater is 3-4 feet below grade, tunnels may encounter seepage requiring pumping to maintain dry working conditions. Properties on Whitemarsh Island, Isle of Hope, or near the waterfront face higher groundwater risk, increasing tunneling costs and extending timeline. We assess water table depth during initial inspection, sometimes using test borings to confirm conditions before committing to tunneling.

The main advantages are complete floor preservation and permanent pipe repair. Your interior remains untouched—no concrete breaking, no floor removal, no restoration work inside your home. The repair is direct and visible; the technician sees the pipe condition, confirms the leak location, and performs a durable fix rather than relying on non-invasive techniques. Tunneling also allows inspection of foundation footings, which can reveal settling or cracking that contributed to the pipe failure.

Disadvantages include higher labor costs (hand-digging is intensive), longer timeline, and dependence on favorable soil conditions. The method requires exterior access—homes on small lots with limited yard space, properties with extensive hardscaping or mature tree roots near the foundation, or corner units in attached housing may not have adequate working space. And while tunneling preserves interior floors, it disturbs exterior landscaping (grass, flower beds, irrigation lines) that requires restoration after backfilling.

Savannah's historic district regulations affect tunneling logistics. Ground-disturbing activities require notification to the State Historic Preservation Office (SHPO) due to potential archaeological sensitivity. While typical residential slab leak tunneling rarely encounters significant archaeological resources, the notification requirement adds 1-2 weeks to project planning. Historic Preservation Commission review may be necessary if excavation is visible from public streets or affects exterior site features in designated landmarks.

The process begins with tunnel entry point selection—typically the closest foundation perimeter point to the leak location. We use electronic or acoustic detection to mark the leak's precise location, then calculate tunnel routing to reach it with minimal digging distance. Day 1-2 involve excavation: removing topsoil and digging the entry pit (4x4 feet typical) to foundation depth, then hand-digging the tunnel using picks and shovels. Excavated soil is staged on tarps in the yard for backfilling.

As we dig, we install temporary shoring—plywood sheets held by braces every 3-4 feet along the tunnel. In Savannah's clay soil, shoring may be minimal for short tunnels, but we install it as a safety precaution regardless of apparent soil stability. Day 3 focuses on reaching the pipe, exposing the damaged section, and performing the repair. We typically replace a 2-3 foot pipe section with new copper or PEX using compression fittings or solder joints. After repair, we pressure test the fix to confirm no leaks remain.

Days 4-5 involve backfilling. We remove shoring progressively as we fill the tunnel with the excavated soil, compacting every 6-8 inches to prevent settling. Proper compaction is critical—poorly compacted fill creates voids that cause surface depressions months later. We water the fill periodically during compaction to enhance settling. Finally, we restore the exterior surface: re-sod grass, replant landscaping, or repair pavers depending on what was disturbed.

Timeline ranges from 3-7 days depending on tunnel length and soil conditions. A simple 8-foot tunnel in stable clay with straightforward repair may complete in 3 days. A 15-foot tunnel in saturated soil near the water table with poor visibility and difficult access may require 7 days. Weather affects schedule—heavy rain stops excavation work, and prolonged wet conditions make tunneling impossible until soil dries.

Savannah's permit requirements for tunneling depend on tunnel depth. Chatham County requires excavation permits for trenches or tunnels exceeding 4 feet deep. Residential slab leak tunneling typically stays at 3-3.5 feet (slab depth), often falling below the permit threshold, but we obtain permits when necessary. Inspections verify proper backfill compaction and site restoration.

Cost in Savannah ranges from $3,000-7,000 depending on tunnel distance, soil conditions, and groundwater management needs. A straightforward 8-10 foot tunnel in dry clay soil runs $3,000-4,500. Longer tunnels (12-15 feet) cost $4,500-6,000. When groundwater is encountered and pumping is required, costs increase $500-1,500 for dewatering equipment and extended labor time. Rocky subsoil (less common in Savannah but present in some areas) may require jackhammer work inside the tunnel, adding $800-1,500.

Additional costs include landscaping restoration ($300-800 for sod, plants, and irrigation repair) and SHPO archaeological notification fees if applicable (usually $100-200 for standard residential projects). Historic district homes may incur HPC review fees ($50-150) if exterior changes are visible from public ways.

We warranty tunneling repairs against leaks in the repaired section for 5 years on workmanship and the life of the copper or PEX materials. The warranty covers the repair itself, backfill settling (we'll return to add soil if depressions occur within 2 years), and exterior surface restoration. It doesn't cover damage to unrelated landscaping, underground utilities we didn't disturb, or new leaks in adjacent pipe sections.

We recommend tunneling when you have confirmed leak location within 15 feet of an accessible foundation perimeter, when floor preservation is your top priority (high-value flooring or irreplaceable historic materials), and when soil conditions are favorable (stable clay, low water table). It's ideal for Savannah's Victorian District homes with original floors, historic downtown properties with antique tile, or newer homes in Ardsley Park with expensive stone installations. Tunneling makes less sense when leaks are centrally located under large homes (tunnel distance becomes excessive), when groundwater is high (dewatering complicates work), or when you lack exterior access along the relevant foundation wall.

Spot Repair with Concrete Restoration

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