Slab Leak Repair in Scarborough, ME

Slab Leak Repair

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A slab leak usually stays hidden under concrete until warm floor spots, sudden water bill spikes, or the sound of rushing water reveal the damage underneath. Is your property safe from slab leaks? If you’re not sure, or you’re seeing signs of trouble, we’re here to help. Gelinas HVAC Services has located and repaired under-slab plumbing leaks across Scarborough since 1994, pinpointing pipe breaks before opening up floors. Our licensed plumbers work under Maine Plumbing License #MS90010125 to treat hidden leaks as urgent repairs in line with EPA leak detection guidance, offering discounted repair options through our Home Advantage Membership. Call (207) 672-2801 to arrange same-day diagnostic service or get a free estimate.

Our Slab Leak Repair Process

We confirm slab leaks using pressure testing, acoustic line locators, and thermal imaging equipment.
We pinpoint leak locations beneath concrete slabs to minimize floor displacement during excavation.
We present repair options clearly, including direct spot repair, pipe rerouting, or line epoxy restoration.
We perform code-compliant pipe repairs using durable copper or PEX line materials.
We pressure-test repaired lines before backfilling to guarantee complete structural tightness.
When main supply lines show widespread deterioration, we provide options for whole home repiping.

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24/7 emergency service

We’re here when
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Locally operated in Southern Maine

Proudly serving our local community since 1994.

Offers flexible financing packages

Options that fit your budget.

Commitment to Service Excellence

Culture of Warmth Where Everyone is Treated Like Family

Same-Day Service

Fast solutions when you need them most.

Free Estimates

No surprises. Just honest prices.

How Members Save on Scarborough Slab Leak Repair

A slab leak hides under concrete, so pinpointing it before opening the floor is where the savings start. Our Home Advantage Membership takes 10% off the repair (up to $200) and waives the minimum service fee, with no emergency fee beyond the diagnostic. A larger repair can go on financing on approved credit, whether or not you’re a member of our program.

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Service Areas

Look for your community in the regional tabs below.

Greater Portland & Sebago Lakes

Cumberland Center
Cumberland Foreside
Gorham
Gray
New Gloucester
North Yarmouth
Pownal
Raymond
South Casco
South Freeport
South Windham
Standish
Steep Falls
Windham
Yarmouth
Casco
Peaks Island
Durham
Sebago
Sebago Lake
Naples
West Baldwin
Hollis
Bar Mills
Buxton

Financing Available

We offer multiple financing options to help make your home project more affordable and stress-free.

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Home Advantage Membership

Get priority service, exclusive discounts, waived service fees & more!
“Treating each other like family” is a core value at Gelinas

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Gelinas HVAC: Your Source for Plumbing, HVAC, and Electrical Services

While slab leaks are less common in Scarborough homes built over basements, they frequently occur in home additions, converted garages, ranch-style houses, and builds constructed over high water tables. A warm floor patch in a Maine home can stem from a domestic hot water pipe leak or a subterranean radiant heating loop break, two distinct issues requiring entirely different repair approaches. Gelinas HVAC Services holds active state master licenses in plumbing and heating, giving us the expertise to diagnose and repair both systems accurately since 1994. Backed by full insurance and an A+ Better Business Bureau rating, we locate leaks precisely before opening floors. Call (207) 672-2801 and let us know if your floor warm spot moves.

How do plumbers locate water pipe leaks under concrete slab foundations? We utilize electronic acoustic listening equipment, line tracing, and pressure testing to pinpoint under-slab leaks precisely.

Do you have to jackhammer the entire concrete floor to repair a slab leak? No, electronic leak detection locates the exact break point, limiting concrete opening to a small targeted area.

Is overhead pipe rerouting better than direct slab leak repair? Rerouting new PEX piping through walls or ceilings is often less invasive and more reliable than breaking concrete to patch old copper.

Can radiant floor heating leaks cause slab leak symptoms in Scarborough? Yes, leaking under-slab radiant tubing causes warm spots on floors and boiler pressure drops. Our licensed plumbers service both.

Does homeowners insurance cover slab leak detection and repairs? Insurance policies often cover tear-out and water damage restoration, though coverage for actual pipe repair varies.

How quickly should I respond to a suspected slab leak? Immediately. Under-slab water leaks undermine foundation soil, leading to costly structural damage and mold growth.

Pinpointing leaks beneath concrete foundations using non-invasive electronic locators allows for targeted pipe repairs without unnecessary floor damage. Depending on pipe condition, we offer direct spot repairs or overhead pipe rerouting through our water line repair team. If under-slab pipes show widespread corrosion, completing a whole home repiping project prevents recurring leaks, while our leak detection repair service addresses secondary line leaks.

A leak under concrete announces itself indirectly, so watch for these:

A patch of floor feels warm underfoot with no heating source above it.
Your water bill stepped up rather than drifted up.
Pressure has dropped across the house with no other explanation.
You can hear running water with every tap and appliance shut off.
New cracks, damp carpet, or a musty smell have appeared at floor level.

The water bill is usually the earliest reliable signal, because a slab leak runs continuously and shows up as a step change in usage rather than a gradual creep. Call (207) 672-2801 to book acoustic detection before anything gets opened.

Since 1994, homeowners across Scarborough and Greater Portland have trusted Gelinas HVAC Services for honest diagnostics and reliable slab leak repair. As a local, family-owned business, we take pride in fixing issues correctly the first time with fully licensed and insured technicians. Reach out to our team at (207) 672-2801 or book online to speak with a live representative.

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Slab Leak Problems We Locate & Repair in the Field

A leak in the copper water lines buried beneath your home’s concrete slab foundation can go unnoticed for weeks, quietly washing away soil and driving up utility bills. Out in Scarborough, warm spots on floor tiles, damp carpets, or the sound of running water with all faucets off point to a slab leak. Here is how we detect and fix these complex underground leaks.

A pinhole leak in a hot water line under a slab transfers heat directly through concrete, creating warm floor patches while forcing your water heater to run constantly. We perform non-invasive acoustic leak detection and line location to pinpoint the exact underground leak site without destructive jackhammering.

Continuous water pressure escaping under a concrete slab erodes supporting soil, causing floor slabs to settle, crack, or damage hardwood flooring above. We evaluate structural risk and execute direct slab penetration repairs or bypass the damaged line entirely by routing new PEX lines safely through attic or wall voids.

Reaction between acidic soil, concrete chemicals, and copper tubing causes exterior pipe pitting and joint failure under slab floors. We replace degraded under-slab pipe sections with continuous, seamless PEX piping that is completely impervious to chemical soil corrosion and foundation movement.

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