Slab Leak Detection & Repair in Johns Creek, GA

How Slab Leak Detection & Repair Works in Johns Creek

Slab leak repair in Johns Creek follows a two-phase model: detection first, then repair. We always pinpoint the exact leak location before breaking concrete or accessing pipes because detection accuracy prevents unnecessary demolition and allows us to recommend the most cost-effective repair method for your specific situation. The detection phase typically takes 1-3 hours depending on your home's size and foundation complexity, while repair timelines range from a single day for rerouting to two weeks for spot repair with concrete curing.

Phase 1: Pinpointing the Leak Location

We select the detection method based on your home's characteristics and symptoms. Electronic leak detection uses electromagnetic pipe locators and ground microphones to pinpoint copper and PEX pipe leaks within 1-2 feet on accessible slabs—our first choice for homes built in the 1980s-2000s near Old Alabama Road and Nesbit Ferry Road with original copper supply lines. Acoustic detection works better for deeper slabs or post-tension foundations common in newer Johns Creek developments near Bell Road and McGinnis Ferry Road, using sound amplification to detect pressurized water escape. Thermal imaging with infrared cameras identifies hot water leaks by detecting temperature differences through flooring, most effective in winter months when temperature contrast is high. For homes showing multiple symptoms or uncertain leak locations, we start with static pressure testing—pressurizing your system and monitoring pressure drop over 30-60 minutes to confirm a leak exists before deploying more invasive methods.

During detection, you'll see us mark the exact leak location on your floor with tape or chalk, take photos documenting the findings, and provide a written assessment of your pipe's overall condition—not just the leaking section. Detection costs in Johns Creek range from $300-1,000 depending on your home's square footage, slab accessibility, and whether we need to combine multiple detection methods. Georgia's expansive clay soil around Johns Creek makes acoustic detection more challenging because clay dampens sound transmission, sometimes requiring closer sensor spacing and longer detection time compared to homes on sandy or rocky soil.

Phase 2: Repair Method Selection

Once we know the exact leak location and your pipe's condition, we explain your repair options with transparent pros, cons, costs, and timelines. For a single leak in good-condition pipe under accessible areas, we might recommend trenchless epoxy pipe lining ($2,000-5,000) that creates a pipe-within-a-pipe seal without breaking concrete—ideal for Johns Creek homes with tile or hardwood floors worth preserving. If your copper pipes show widespread corrosion common in homes 20+ years old, copper-to-PEX repiping ($4,000-12,000) eliminates future under-slab leaks by rerouting all supply lines through your attic or crawlspace with a new manifold system.

When you have high-value flooring and exterior access, tunneling under the foundation ($3,000-7,000) preserves your interior finishes by hand-digging to reach the leak from outside—feasible in Johns Creek's stable Georgia clay soil with proper shoring. Budget-conscious homeowners with leaks under garages or utility rooms often choose spot repair with concrete restoration ($1,500-3,500), accepting the 1-2 week concrete cure time for the lower cost. For isolated leaks where other methods aren't practical, we can reroute plumbing around the problem section in 4-8 hours ($800-2,500), installing new PEX above the slab through your attic—common in Johns Creek homes with accessible attic spaces.

Your decision factors include your budget, how long you plan to stay in the home, whether you want to eliminate future slab leak risk entirely, and how much disruption you can tolerate. We provide written estimates for each viable option and explain what your homeowners insurance typically covers (water damage and restoration, but usually not the pipe repair itself). For Johns Creek residents, we handle all permitting through the City's CSS Portal—plumbing trade permits and site inspections are required for any pipe replacement or repiping work, and we coordinate those logistics so you don't have to navigate the process yourself.

Need slab leak detection in Johns Creek? Call +1-866-779-0723 for same-day service or schedule a detection assessment to understand your repair options before making any decisions.

Slab Leak Detection Methods for Johns Creek Homes

Professional slab leak detection in Johns Creek begins with selecting the right method based on your home's foundation type, pipe material, and leak symptoms. We've detected over 1,500 slab leaks across Fulton County's diverse housing stock—from 1980s copper systems near Old Alabama Road to newer PEX installations in Technology Park developments—and use multiple detection technologies to pinpoint leaks within 1-2 feet without unnecessary concrete demolition.

Electronic Leak Detection in Johns Creek

Electronic leak detection uses electromagnetic pipe locators and ground microphones to pinpoint pressurized water leaks beneath concrete slabs. We pressurize your water lines to 60-80 PSI, then trace copper or PEX pipes with electromagnetic field detection equipment. When water escapes under pressure, it creates a distinct acoustic signature that ground microphones amplify and pinpoint. The equipment displays signal strength in real-time, allowing us to mark the exact leak location on your floor with spray paint before any demolition begins.

During detection, you'll see our technician methodically scan your floors with handheld sensors, listening through headphones and marking signal peaks. The process takes 1-2 hours for typical Johns Creek homes. We photograph marked locations and document signal readings so you have visual proof of the leak position before authorizing repair work.

Electronic detection works best for copper and PEX supply lines under accessible slab-on-grade foundations common in Johns Creek homes built from the 1980s through early 2000s. This method excels when you have a single suspected leak with clear symptoms like a hot floor spot or isolated high water usage. For homes near Old Alabama Road and Nesbit Ferry Road with original copper plumbing, electronic detection is typically our first-line approach because these pipes conduct electromagnetic signals clearly and acoustic signatures are distinct.

Johns Creek's mixed foundation types affect detection effectiveness. Slab-on-grade foundations in neighborhoods near Bell Road allow clear electromagnetic signal propagation, while post-tension foundations with steel cables common in newer Technology Park developments create signal interference. Georgia's clay soil beneath foundations dampens acoustic signals slightly compared to sandy soil, requiring closer sensor spacing but still producing accurate results within 1-2 feet. We adjust sensor sensitivity based on soil density and foundation depth to maintain pinpoint accuracy.

Electronic detection accuracy reaches 95% for accessible copper lines, pinpointing leaks within 1-2 feet in ideal conditions. Limitations include difficulty detecting leaks in drain lines (which aren't pressurized), reduced accuracy through thick post-tension slabs, and false positives near water heater connections or manifold systems where multiple pipes converge. The method cannot detect leaks that aren't actively releasing water or assess overall pipe condition beyond the immediate leak point.

Detection timeline: 1-2 hours for average 1,500-2,000 sq ft Johns Creek homes, including setup, scanning, confirmation testing, and floor marking. Complex layouts with multiple plumbing zones or difficult access may extend to 3 hours.

Cost in Johns Creek: $300-$500 for standard electronic detection, with $150-$200 additional for homes over 3,000 sq ft or complex multi-story layouts. This fee typically applies toward repair if you proceed with our service same-day. Emergency after-hours detection adds $100-$150 to account for technician dispatch outside regular hours.

We recommend electronic detection when you have a confirmed single leak with visible symptoms (hot floor spot, water meter spinning, localized foundation cracking), accessible slab-on-grade foundation, copper or PEX supply lines, and desire for quick, cost-effective pinpointing before concrete demolition. This method is ideal for Johns Creek homeowners who want definitive leak location proof before authorizing invasive repair work.

Acoustic Leak Detection for Deep Foundations

Acoustic leak detection uses professional-grade ground microphones and vibration sensors to detect the sound signature of water escaping pressurized pipes beneath deep or post-tension concrete foundations. We pressurize your water system, then place sensitive acoustic sensors at multiple floor locations to triangulate leak position based on sound intensity and frequency patterns. Water escaping under 40-80 PSI creates a distinct hissing or rushing frequency (typically 400-800 Hz) that travels through concrete and soil. Our equipment filters out ambient noise and amplifies leak frequencies, allowing us to map signal strength across your floor and pinpoint the source.

The process takes 2-3 hours for typical Johns Creek homes. You'll see our technician place multiple sensors across suspected leak areas, connect them to a central analysis unit, and systematically map acoustic intensity. We mark the loudest signal point on your floor, then verify with secondary sensor placement to confirm accuracy. This triangulation approach accounts for signal echo and reverberation in deep foundations, producing reliable results even when electromagnetic detection fails.

Acoustic detection is the right choice when electronic methods can't penetrate your foundation type or when leaks are too deep for standard sensors. Post-tension foundations with steel cables—common in newer Johns Creek developments near McGinnis Ferry Road—block electromagnetic signals, making acoustic detection the only non-invasive option. This method also works when you suspect multiple leak points and need to identify which is most severe, or when previous electronic detection produced unclear results.

In Johns Creek's construction landscape, acoustic detection is essential for homes built after 2000 with post-tension slabs, particularly in planned communities developed during the city's rapid 2000s growth. These foundations use tensioned steel cables embedded in 6-8 inch concrete slabs, creating electromagnetic interference but transmitting acoustic signals clearly. Older homes near Nesbit Ferry Road with exceptionally thick (8+ inches) concrete slabs also benefit from acoustic detection when electronic methods lose signal strength in deep concrete.

Georgia's clay soil beneath Johns Creek foundations dampens acoustic signals more than sandy soil, requiring closer sensor spacing (6-8 feet apart vs 10-12 feet in sandy regions). However, clay's density also reduces signal scatter, producing cleaner frequency patterns once detected. We account for this by increasing sensor count and using higher-gain amplification settings calibrated specifically for Georgia Piedmont soil conditions.

Acoustic detection pinpoints leaks within 1-3 feet depending on foundation depth and soil density. The method works only on pressurized supply lines (not drain leaks) and requires sufficient leak volume to generate detectable sound—very slow seepage may not produce adequate acoustic signature. Deep leaks (4+ feet below slab surface) or leaks beneath interior walls with multiple concrete layers reduce accuracy. Weather and ambient noise (HVAC systems, nearby traffic on State Bridge Road) can interfere, requiring detection during quiet periods.

Detection timeline: 2-3 hours for standard Johns Creek homes under 2,500 sq ft, extending to 4-5 hours for large homes over 4,000 sq ft with multiple plumbing zones. Setup time is longer than electronic detection due to multi-sensor placement and signal calibration, but results are equally definitive.

Cost in Johns Creek: $400-$600 for acoustic detection on standard residential foundations, with $700-$900 for complex post-tension or multi-level homes requiring extensive sensor arrays. This fee includes full signal mapping, floor marking, and documentation. Like electronic detection, the fee typically credits toward same-day repair authorization.

We recommend acoustic detection when you have post-tension foundations, exceptionally thick concrete slabs, previous electronic detection that failed to pinpoint the leak, multiple suspected leak points requiring prioritization, or when your home is located in newer Johns Creek developments (post-2000) where post-tension construction is standard. This method is also preferred when you need non-invasive detection but electronic methods are ruled out by foundation type.

Thermal Imaging Leak Detection

Thermal imaging uses infrared cameras to detect temperature differences caused by hot water leaks beneath concrete slabs. The camera displays a heat map of your floor surface, revealing warm spots where hot water is escaping underground and radiating heat through the concrete. Modern thermal cameras detect temperature variations as small as 0.1°F, making subtle hot water leaks visible even when homeowners haven't noticed warm floor spots by touch.

We scan your home's floor surfaces systematically with a handheld or tripod-mounted infrared camera, capturing thermal images of suspected leak areas. Hot water leaks appear as bright spots (higher temperature) against cooler surrounding concrete. Cold water leaks produce no thermal signature and cannot be detected with this method. The camera displays real-time thermal data, allowing us to pinpoint the hottest spot on your floor and correlate it with your home's plumbing layout to confirm the leak is from a supply line rather than radiant heating or sunlight exposure through windows.

The detection process takes 1 hour for typical Johns Creek homes. You'll see our technician scan floors in main living areas, bathrooms, utility rooms, and near water heater locations—anywhere hot water lines run beneath the slab. We photograph thermal images showing temperature gradients and mark the hottest floor location with tape. This documentation provides visual proof of the leak's heat signature before concrete demolition.

Thermal imaging works best for hot water line leaks with sufficient temperature differential between leaking water and ambient concrete temperature. It's ideal when you've noticed a warm or hot spot on your floor, your water heater runs constantly, or your gas bills have increased alongside higher water usage (indicating hot water waste). This method excels in Johns Creek's winter months (November-March) when the temperature contrast between 120-140°F hot water and 50-60°F concrete is greatest, producing the clearest thermal signature.

Johns Creek homes heated with forced air systems are well-suited for thermal detection because floor temperatures remain relatively uniform, making hot water leaks stand out clearly on thermal scans. Homes with radiant floor heating or recent direct sunlight exposure through large windows require careful interpretation to distinguish hot water leaks from other heat sources. We scan during early morning hours or after sunset to minimize solar interference when necessary.

Thermal imaging cannot detect cold water leaks, which represent approximately 60% of under-slab leaks in Johns Creek's aging copper systems. The method requires active hot water flow at the time of scanning—if the leak is very slow or intermittent, the thermal signature may be too subtle to detect. Thick concrete (8+ inches), insulated subfloors, or flooring materials like thick carpet with padding reduce temperature transmission to the surface, decreasing detection reliability. False positives can occur near hot water heater exhaust vents, recently used heated floors, or sun-exposed areas.

Detection timeline: 1 hour for thermal scanning and analysis in typical Johns Creek homes, including setup, systematic floor scanning, image documentation, and leak position marking. Larger homes or those requiring multiple scans at different times of day extend to 2 hours.

Cost in Johns Creek: $500-$700 for thermal imaging detection, reflecting the specialized infrared camera equipment investment (professional thermal cameras cost $3,000-$15,000) and technical interpretation expertise required. This fee includes thermal image documentation, floor marking, and written report of findings. The fee applies toward repair if you proceed same-day.

We recommend thermal imaging when you've noticed a hot floor spot, your water heater cycles constantly without explanation, you suspect a hot water line leak specifically (not cold water), detection occurs during cooler months (October-April) for maximum thermal contrast, and you want non-invasive confirmation before authorizing electronic or acoustic detection. Thermal imaging is particularly useful as a preliminary screening tool—if we identify a clear hot spot, we can follow up with electronic detection for exact pinpointing before demolition.

Pressure Testing & Video Pipe Inspection

Static pressure testing and video pipe inspection are diagnostic methods that confirm leak existence and assess overall system integrity before invasive detection methods. These approaches answer critical questions: Is there definitely a leak? How severe is it? Are there multiple leaks? What condition are the pipes in overall?

Static Pressure Testing Process:
We isolate your home's water supply system by closing the main shutoff valve and opening one fixture to relieve pressure. Then we install a pressure gauge at an accessible point (usually a hose bib or laundry connection) and pressurize the system to 60-80 PSI using a manual pump or air compressor. With all fixtures closed and no water use permitted, we monitor the pressure gauge for 30-60 minutes. A system with no leaks maintains steady pressure. Pressure drop indicates water escaping somewhere in the system—the faster the drop, the larger the leak. A 10 PSI drop in 30 minutes suggests a moderate leak requiring immediate attention; 20+ PSI drop indicates a significant leak demanding emergency repair.

Static pressure testing proves a leak exists and quantifies its severity, but it doesn't pinpoint location. We use this method when homeowners report high water bills or suspect leaks but lack visible symptoms like hot spots or foundation cracks. The test confirms whether detection investment is warranted or whether the problem is fixture-related rather than under-slab.

Video Pipe Inspection Process:
Video inspection uses a waterproof camera on a flexible cable inserted through cleanouts, drain lines, or access points to view pipe interiors. The camera transmits real-time footage to a monitor, allowing us to see pipe condition, corrosion, mineral buildup, cracks, and leak points from inside. For slab leak diagnosis, we typically inspect accessible drain lines to assess pipe age and condition, which correlates with supply line health. If your home has copper supply lines installed in the 1980s-1990s and drain pipes show heavy corrosion, the supply lines likely face similar degradation even if not currently leaking.

Video inspection is valuable when you've experienced one slab leak and want to assess whether whole-house repiping is more cost-effective than spot repair, or when multiple symptoms suggest system-wide problems (low pressure, discolored water, frequent fixture failures). We can inspect 50-100 feet of accessible piping in a single session, documenting conditions with video recordings you can review.

Both methods are best used when you need diagnostic clarity before committing to full detection and repair. Johns Creek homeowners with 20+ year old homes near Old Alabama Road and Nesbit Ferry Road benefit from pressure testing and video inspection to assess system-wide copper corrosion risk. Post-2000 homes with PEX systems rarely need video inspection unless construction defects are suspected, but pressure testing remains valuable for confirming leak presence.

Johns Creek's water quality—moderately hard with mineral content typical of Georgia Piedmont aquifer sources—causes internal copper pipe corrosion over 20-30 years. Video inspection reveals the telltale blue-green corrosion patterns inside older copper, helping predict remaining pipe lifespan. Homes built 1980-2000 are entering the failure window where proactive pressure testing and video inspection inform repair-vs-repipe decisions.

Timeline: Static pressure testing takes 1 hour including setup, pressurization, monitoring period, and documentation. Video inspection takes 1.5-2 hours for 50-75 feet of accessible pipe, including camera setup, systematic pipe traversal, and video recording. Combined diagnostic service takes 2.5-3 hours total.

Cost in Johns Creek: Static pressure testing costs $250-$400 as a standalone diagnostic. Video pipe inspection costs $300-$500 for first 50 feet of pipe, with $50-$100 per additional 25 feet if extensive inspection is needed. Combined pressure test + video inspection package: $500-$800. These fees typically credit toward repair or repiping if you proceed with our service within 7 days.

We recommend pressure testing when you suspect a leak but have no visible symptoms, your water bill increased but you're not sure it's a slab leak, or you want to confirm leak existence before investing in electronic/acoustic detection. Video inspection is recommended when you've experienced one slab leak and want to assess overall system condition before choosing spot repair vs whole-house repipe, your home is 20+ years old with original copper plumbing, or you need documentation for insurance claims or home sale disclosure.

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Need leak detection in Johns Creek? Call +1-866-779-0723 for accurate pinpointing using the right method for your home's foundation type and pipe system.

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Slab Leak Repair Options Compared

Once we've pinpointed your leak location, we present repair options tailored to your leak's location, your home's foundation type, your flooring, and your budget. Johns Creek's diverse housing stock—from 1980s split-levels with aging copper to newer Technology Park homes with modern PEX systems—requires customized repair approaches. We've completed over 1,200 slab leak repairs across Fulton County and explain each method's process, pros, cons, timeline, and cost so you can make a confident decision.

Trenchless Epoxy Pipe Lining

Epoxy pipe lining creates a permanent pipe-within-a-pipe seal without breaking concrete. We access your existing copper or galvanized pipes through cleanouts or by cutting into accessible sections (usually in attic, crawlspace, or at fixtures), then clean the pipe interior with high-pressure water jetting or abrasive cable systems to remove corrosion, mineral buildup, and debris. Once cleaned, we blow-dry the pipe interior with compressed air, then apply a two-part epoxy coating using a specialized bladder system or spray nozzle. The epoxy coating—typically 1-2mm thick—bonds to the pipe walls and cures within 4-8 hours, creating a smooth, corrosion-resistant interior surface that restores full water flow and seals leaks permanently.

The entire process takes 1-2 days: Day 1 for pipe access, cleaning, and epoxy application; Day 2 for curing, pressure testing (80-100 PSI for 15 minutes per Georgia code), system flush, and restoration of water service. Homeowners experience minimal disruption—no jackhammering, no floor demolition, and often no need to vacate the home during work.

Epoxy lining is best for single-line leaks in hot water or cold water supply pipes where you want to preserve finished flooring (tile, hardwood, engineered wood) and avoid concrete demolition. This method works when your existing pipes have sufficient remaining wall thickness (at least 40%) to support the epoxy coating and when we can access both ends of the affected pipe section through existing cleanouts or fixture connections. It's ideal for Johns Creek homeowners prioritizing speed, minimal disruption, and long-term leak prevention without extensive demolition.

In Johns Creek, epoxy lining is particularly relevant for homes with high-value finished flooring in main living areas—common in established neighborhoods near Old Alabama Road and McGinnis Ferry Road where hardwood, travertine tile, and custom stonework are prevalent. The method preserves these finishes completely, avoiding $3,000-$8,000 in floor restoration costs that would accompany traditional jackhammer repair. Johns Creek's slab-on-grade foundations (typical in pre-2000 construction) allow straightforward pipe access through perimeter walls or attic spaces, making epoxy lining technically feasible for 70-80% of under-slab supply lines.

Pros:
No concrete breaking preserves finished floors, landscaping, and interior finishes. Completion in 1-2 days allows quick return to normal water use. Lifetime warranty coverage (transferable) on epoxy-lined sections provides long-term assurance against future leaks in treated pipes. The epoxy coating eliminates internal corrosion risk and improves water flow by smoothing rough pipe interiors. Lower cost than whole-house repiping when only one line is leaking. Minimal homeowner disruption—you can remain in your home throughout the process.

Cons:
Not suitable for pipes with severe corrosion (less than 40% wall thickness remaining) because structural integrity is insufficient to support epoxy coating. Requires accessible pipe ends—if both ends of the leaking section are embedded in concrete with no cleanouts or fixture access, we cannot insert cleaning or epoxy equipment. Treats only the specific pipe section addressed, not the entire system—other aging pipes may develop leaks later. Interior pipe diameter reduces slightly (1-2mm on all sides), minimally affecting flow but requiring consideration for already-restricted pipes. Epoxy materials and labor skill requirements make this method more expensive than simple spot repair.

Process Walkthrough:
Day 1 Morning: We arrive with pipe cleaning and epoxy application equipment, identify optimal access points (cleanouts, fixture shutoffs, or wall penetrations), and shut off water to the affected line. We cut into the pipe at access points if necessary, attach high-pressure jetting equipment, and clean 50-100 feet of pipe interior depending on leak location. You'll hear water jetting equipment running (similar sound to a pressure washer) for 1-2 hours. We inspect pipe interior with a small camera to confirm cleanliness.

Day 1 Afternoon: We blow-dry the pipe interior with compressed air for 30-60 minutes, then insert epoxy application equipment. The two-part epoxy is mixed on-site and pumped or sprayed through the pipe, coating all interior surfaces evenly. The process is odorless to homeowners and produces no hazardous fumes. Application takes 2-3 hours depending on pipe length.

Day 2 Morning: Epoxy cures overnight (4-8 hours minimum). We return to pressure-test the system: pressurize the treated line to 80-100 PSI, monitor for 15 minutes, confirm zero pressure loss. We flush the system to remove any epoxy residue, restore water service, and test all fixtures on the treated line. You have full water use restored by mid-morning.

City Considerations for Johns Creek:
Johns Creek's slab-on-grade foundations (dominant in pre-2000 neighborhoods) are ideal for epoxy lining because supply lines typically run in predictable patterns beneath slabs with accessible endpoints through perimeter walls. Post-tension foundations in newer Technology Park developments may have more complex pipe routing, sometimes requiring additional access cuts. Georgia's clay soil creates stable foundation conditions but causes external pipe corrosion—epoxy lining addresses only internal corrosion and existing leaks, not future external corrosion from soil contact on unlined pipe sections.

Fulton County permits are not typically required for epoxy lining because it's considered a repair rather than pipe replacement. However, if we need to cut through walls or floors to access pipes, a minor alteration permit may be required—we handle all permitting through Johns Creek's CSS Portal if needed. No inspection is required for epoxy lining unless wall penetrations exceed minor scope.

Timeline: 1-2 days from start to finish. Day 1: 4-6 hours for cleaning and epoxy application. Overnight cure period. Day 2: 2-3 hours for testing and restoration. Total elapsed time 24-36 hours, with water service restored within 48 hours of starting work. Homeowners can use water from unaffected lines throughout the process (typically cold water remains available while hot water line is being treated, or vice versa).

Cost in Johns Creek:
$2,000-$3,500 for 30-50 feet of pipe lining (typical hot water main from water heater to foundation perimeter), the most common scenario in single-story Johns Creek homes. $3,500-$5,000 for 75-100 feet of lining (full cold water main or multi-branch systems in larger homes). Factors increasing cost: pipe length over 50 feet, difficult access requiring wall or floor cuts, severely corroded pipes requiring extended cleaning time, multi-story homes requiring additional access points. Factors decreasing cost: easily accessible cleanouts, shorter pipe runs (under 30 feet), straightforward pipe routing.

Warranty:
Lifetime warranty against leaks in epoxy-lined pipe sections, covering materials and labor. Warranty is transferable to future homeowners if you sell. Warranty does not cover un-lined pipe sections, external pipe corrosion outside the lined area, or new leaks in other parts of the plumbing system.

When We Recommend:
Epoxy lining is the best choice when you have a single confirmed leak in a supply line, your home has finished flooring worth preserving (hardwood, tile, stone), your pipes retain at least 40% wall thickness (we assess this during detection and testing), you want the repair completed in 1-2 days, and you're willing to invest $2,000-$5,000 to avoid concrete demolition and floor restoration costs. We also recommend this method when you plan to remain in your home long-term and want a permanent solution with lifetime warranty coverage.

Copper to PEX Repiping

Copper to PEX repiping involves installing new PEX (cross-linked polyethylene) supply lines throughout your home, either rerouting around the foundation to bypass under-slab sections or performing a complete whole-house repipe. We install a PEX manifold system—a central distribution hub with individual shut-off valves for each fixture—then route flexible PEX lines through attic spaces, crawlspaces, interior walls, or exterior chases to reach all fixtures. The old under-slab copper pipes are abandoned in place (depressurized and isolated), eliminating future under-slab leak risk entirely.

PEX offers multiple advantages over copper: it's flexible (requiring fewer fittings and joints where leaks develop), freeze-resistant (expands without bursting), corrosion-proof (unaffected by water chemistry or soil contact), and easier to route through existing structures without extensive demolition. Modern PEX-A systems (the highest quality PEX type) carry 25-year manufacturer warranties and are approved by all U.S. plumbing codes, including Georgia's state code.

Repiping is best for homes with multiple existing leaks, copper systems 20+ years old nearing end-of-life, homeowners who want to eliminate future under-slab leak risk permanently, or situations where spot repair would be a temporary fix. If you've already repaired one slab leak and worry about others developing, or if your home has low water pressure system-wide from corroded copper, repiping addresses both issues comprehensively.

In Johns Creek, copper to PEX repiping is especially relevant for homes built 1980-2000 near Old Alabama Road and Nesbit Ferry Road. These homes now have 25-45 year old copper systems entering peak failure years. Johns Creek's moderately hard water accelerates internal copper corrosion, and Georgia clay soil causes external corrosion where pipes contact soil beneath slabs. Repiping eliminates both corrosion sources by moving all supply lines out of the ground entirely.

Pros:
Eliminates all future under-slab leak risk—PEX never touches soil or concrete. Improves water pressure throughout the home by installing new full-diameter pipes without corrosion or mineral restriction. Provides individual fixture shutoff capability at the manifold, allowing you to service one bathroom without shutting off water to the entire house. PEX is freeze-resistant, reducing winter burst risk in attics or exterior walls compared to copper. Modern PEX-A systems expand and contract with thermal changes, reducing stress-related failures. 25-year manufacturer warranty on materials, lifetime warranty on our installation workmanship. Long-term investment that increases home value and eliminates chronic plumbing issues.

Cons:
Higher upfront cost than spot repair or epoxy lining—typically $4,000-$12,000 depending on scope. Visible piping in some areas: attic-routed PEX runs may be visible in storage spaces, and wall chases or soffits may be needed for first-floor fixtures if no crawlspace or attic access exists. Multi-day project (2-5 days) requiring homeowner to accommodate work crew and potential temporary water shutoffs during final connections. Does not address the under-slab copper (which remains abandoned in place)—if you're selling soon and buyers are concerned about old pipes, explain that they're depressurized and isolated. Requires Georgia-licensed plumber with PEX certification to ensure code-compliant installation.

Process Detail:
Day 1: We install the PEX manifold near your water heater or main shutoff location, typically in a garage, utility room, or basement. The manifold has 8-12 individual valves (one per fixture or appliance), allowing independent control of every supply line. We map existing fixture locations and plan optimal pipe routing to minimize visible runs. We begin running PEX lines through attic (if single-story or for upstairs fixtures) or crawlspace (if accessible), securing pipes every 32 inches per code and insulating where required.

Days 2-3: We continue routing PEX to each fixture—sinks, toilets, showers, washing machine, refrigerator ice maker, outdoor hose bibs. For fixtures without direct attic/crawlspace access, we route through interior walls or create small chases. We drill through top plates and studs as needed, maintaining structural integrity and fire blocking per code. Each PEX line runs independently from manifold to fixture with minimal joints (one connection at manifold, one at fixture), reducing leak points by 80% compared to traditional copper branch systems.

Day 4: We shut off water briefly (2-4 hours) to make final connections, removing old fixture shutoffs and connecting PEX supply lines with compression or crimp fittings. We cap the old under-slab copper at accessible points (usually where it emerges from slab at water heater or main shutoff) and depressurize it. We pressure-test the entire new PEX system at 100 PSI for 15 minutes (Georgia code requirement), checking every connection for leaks.

Day 5: We flush the system, test all fixtures for proper flow and temperature, adjust manifold valves for balanced pressure, and restore full water service. We walk you through the new manifold system, showing you how to shut off individual fixtures for future maintenance. We clean up all work areas and haul away old copper scrap.

Johns Creek Logistics:
Johns Creek's housing stock includes high percentages of single-story ranch homes and two-story colonials with accessible attics, making attic routing feasible for 80%+ of homes. Homes without attic access (some split-level designs near Technology Park) require more creative routing through crawlspaces, wall chases, or exterior soffits. Post-2000 homes with spray foam insulation in attics may require foam removal and re-application after pipe installation, adding $500-$1,200 to project cost.

Georgia code requires PEX insulation in unconditioned spaces (attics) to prevent freezing. Johns Creek's winter lows (occasional sub-20°F nights) necessitate foam pipe insulation for all attic-routed lines. We include this in our installation by default.

Fulton County requires plumbing permits for whole-house repipes. Permit cost: $100-$150 processed through Johns Creek CSS Portal (we handle all permitting). Inspection required after rough-in (pipes installed before connections) and after final connections. Inspections typically occur 1-2 days after work completion; we schedule and coordinate with inspectors to minimize homeowner involvement.

Timeline:
Partial Reroute (bypassing single leaking line): 1-2 days. We install manifold, route new PEX line from manifold to fixture bypassing under-slab section, cap old pipe, test new line. Water service restored within 48 hours.

Whole-House Repipe (replacing all supply lines): 3-5 days depending on home size. 1,500-2,000 sq ft homes: 3 days typical. 2,500-3,500 sq ft homes: 4 days. 4,000+ sq ft homes or complex layouts: 5 days. Add 1 day if spray foam attic insulation requires removal/replacement.

Cost in Johns Creek:
Partial Reroute (single line bypass): $1,500-$3,500 depending on distance from manifold to fixture and routing complexity. Typical scenario: reroute hot water main from water heater to master bathroom (40-60 feet) costs $2,000-$2,800.

Whole-House Repipe: $4,500-$7,000 for 1,500 sq ft single-story ranch with 2 bathrooms. $6,000-$9,000 for 2,000-2,500 sq ft two-story with 2.5 bathrooms. $8,000-$12,000 for 3,000-3,500 sq ft two-story with 3+ bathrooms. Factors increasing cost: difficult attic/crawlspace access, spray foam insulation removal, complex multi-story layouts, luxury fixtures requiring precision connections, exterior hose bib rerouting through exterior walls. Factors decreasing cost: straightforward single-story layout, easy attic access, standard fixture count, owner provides temporary accommodations reducing urgency.

Warranty:
25-year manufacturer warranty on PEX-A materials (from Uponor or similar manufacturers). Lifetime warranty on our installation workmanship covering leaks, connection failures, and pressure issues resulting from our work. Warranty covers all installed components: manifold, valves, fittings, and pipe sections.

When We Recommend:
PEX repiping is the best choice when you've experienced multiple slab leaks or worry about future leaks in aging copper, your home is 20+ years old with original copper plumbing showing signs of system-wide corrosion (low pressure, discolored water, pinhole leaks at fixtures), you plan to own the home 5+ years and want to invest in permanent peace of mind, you have accessible attic or crawlspace routing options, your budget allows $4,000-$12,000 investment, and you want improved water pressure and individual fixture control. We also recommend repiping when spot repair or epoxy lining would only address the immediate leak but leave you vulnerable to repeat failures in other pipes.

Tunneling Under Foundation

Tunneling is a specialized repair method where we hand-dig a horizontal tunnel beneath your home's foundation from an exterior access point (typically along the foundation perimeter) to reach the leak location without breaking interior concrete or disturbing finished floors. We excavate a 2-3 foot wide tunnel 2-4 feet deep, shore the tunnel walls with plywood or steel panels to prevent collapse, access the leaking pipe from below, repair or replace the damaged section, backfill the tunnel with compacted soil, and restore exterior landscaping.

This method is labor-intensive and slower than other repairs, but it's the only option that preserves high-value interior flooring (marble, custom tile, engineered hardwood, specialty finishes) while still allowing direct pipe access for permanent repair. Tunneling is best when you have a leak under finished living areas or custom flooring worth $5,000-$15,000 to restore, when you have accessible exterior perimeter near the leak location, and when stable soil conditions allow safe tunneling.

In Johns Creek, tunneling is particularly relevant for homes with custom tile work, imported stone flooring, or original hardwood in historic neighborhoods near Old Alabama Road. These finishes are either irreplaceable or prohibitively expensive to replicate, making concrete demolition unacceptable to homeowners. Johns Creek's mix of slab-on-grade and raised foundation homes provides tunneling access in most cases, though post-tension slabs and homes with finished basements may complicate access.

Pros:
Preserves interior flooring completely—no concrete demolition, no tile removal, no hardwood damage. Provides direct visual access to the leaking pipe, allowing permanent repair or replacement with full confidence in the fix. Suitable for nearly any leak location as long as exterior access exists within 15 feet of the leak. Results in permanent repair with the same reliability as spot repair but without interior disruption. Allows for pipe replacement (copper to PEX or copper to copper) rather than just patch repair.

Cons:
Labor-intensive and time-consuming—tunneling takes 3-7 days depending on distance and soil conditions. Higher cost than spot repair or rerouting due to excavation labor and shoring requirements. Requires exterior access along the foundation perimeter—not feasible if leak is