Slab Leak Detection & Repair in Greensboro
Greensboro’s Slab Leak Team Since 1974
A slab leak occurs when a water supply or drain pipe beneath your concrete slab foundation cracks, corrodes, or breaks. Because those pipes are encased in concrete, the leak can go undetected for weeks or months while water quietly damages your foundation, invites mold growth, and erodes the soil beneath your home. Most Greensboro and Guilford County homes sit on concrete slab foundations, which makes this a situation our technicians see regularly.
We’ve served Greensboro and the Triad since 1974. Our team is fully licensed, insured, and vetted, and every plumbing job we complete is backed by a warranty. When you suspect a slab leak, early detection is what limits the damage.
Call us any time, day or night. We answer the phone 24/7, offer same-day service, and respond to slab leak emergencies throughout Greensboro and the Triad. Reach us now at (336) 932-8643.
Go with the Name You Trust
Johns Provides Quality Without Compromise
Why Greensboro Homeowners Call Johns Plumbing, Heating & Air Conditioning, Water Purification and Electrical for Slab Leaks
Slab leak detection and repair demands both the right equipment and the judgment that comes from working on real homes in this area for a long time. Our team carries more than 100 years of combined plumbing experience, and we’ve been part of the Greensboro community for over 50 years.
What you get when you call us:
- 24/7 phone availability so you can reach a live person the moment you suspect a problem
- Emergency response and same-day service when you can’t wait
- Non-invasive detection tools including thermal imaging, acoustic scanning, and pressure testing
- A warranty on our plumbing work, giving you confidence in the repair process
- Fully licensed, insured, and vetted technicians on every job
- A single point of contact for plumbing, HVAC, water purification, and electrical needs, so any follow-on work after a slab leak repair doesn’t require tracking down a separate contractor
We’re a family-run business, and that means the people who come to your home are accountable to the same community they live and work in. That’s been true since 1974.
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50+ Years in BusinessThe Johns family has served homeowners and businesses in the Triad since 1974.
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24/7 Emergency ServiceWe answer the phone 24/7 and are here to help whenever you need us.
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Licensed & InsuredOur team is fully licensed, insured, and vetted.
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Competitive PricingYou can count on Johns to provide quality service at a fair price.
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Ask About Our WarrantyWe back all services with a warranty for your peace of mind.
Slab Leak Repair Options
Once we’ve confirmed the leak location, the right repair method depends on where the leak is, how much of the pipe is affected, the age and material of your plumbing system, and how much disruption you’re prepared to manage. There’s no single answer that fits every situation.
Spot Repair
When the leak is isolated and the surrounding pipe is otherwise in sound condition, we open the slab at the confirmed location to repair or replace that section of pipe. This approach is direct and keeps the scope of work contained.
Pipe Rerouting
If the underground line is corroded beyond a single point, rerouting bypasses the damaged pipe entirely. A new line runs through walls, ceilings, or another accessible path, which can address the problem without relying on aging pipe that may fail again.
Epoxy Pipe Repair
For certain pipe sizes and damage types, epoxy lining or patching seals a damaged pipe from the inside, minimizing concrete removal. This is a targeted option when the damage and pipe condition are suited to it.
After any repair, we restore water pressure and verify the leak is resolved before closing the work. Whatever method fits your situation, we can walk you through the recommendation before anything begins.
Suspect a Slab Leak? Call Johns Today
The longer a slab leak goes unaddressed, the more it can cost to fix. If you’ve noticed any of the warning signs above, or you’ve watched your water bill climb without explanation, contact us for slab leak detection in Greensboro. We’re available 24/7 for emergencies and offer same-day service throughout the Triad.
Johns Plumbing, Heating & Air Conditioning, Water Purification and Electrical has protected Greensboro homes since 1974. Call (336) 932-8643 to schedule slab leak detection or repair.
Warning Signs of a Slab Leak in Your Greensboro Home
Slab leaks rarely announce themselves with obvious flooding. More often, they surface through subtle changes you might not immediately connect to a plumbing problem. Knowing what to look for can mean the difference between a contained repair and significant structural damage.
Common signs that warrant a professional inspection:
- Unexplained water bill increases with no change in your usage habits
- Warm or hot spots on tile or hard floors, which can indicate a hot-water line leaking below the slab
- The sound of running water when every fixture and appliance in the home is off
- Damp or soft spots on flooring, or moisture visibly seeping up through concrete
- New cracks in interior walls or at the base of walls, sticking doors or windows, or floors that feel uneven
- Musty or mildew odors without an obvious source, which may mean water has been accumulating long enough to support mold growth
You can also run a simple water meter check: turn off all water inside and outside the home, then watch the meter dial. If it keeps moving, there’s an active leak somewhere in the system. That’s the right moment to call for professional slab leak detection.
