Answers to the questions Woburn homeowners ask most about slab leaks: signs, detection, repair options, cost and insurance. Still have a question? Call (781) 483-8802.
Signs and causes
What are the most common signs of a slab leak?
A higher water bill, running water sounds with taps off, warm floor spots, damp flooring, musty smells, new cracks and low water pressure are the most common signs.
What causes slab leaks?
Corrosion in older pipes, pipes rubbing against concrete or gravel, high water pressure, poor installation and ground movement from freeze-thaw cycles and wet seasons.
Can homes with basements get slab leaks?
Yes. A basement floor is a concrete slab, and water and drain lines often run under it. Additions, garages and slab-built rooms can also have leaks.
Detection
How do plumbers find a slab leak?
They confirm the leak with a meter and pressure test, isolate the leaking line, trace the pipe's path, and pinpoint the leak with acoustic sensors or thermal imaging. See slab leak detection.
Can I find a slab leak myself?
You can confirm a supply leak with the water meter test. Pinpointing the exact spot under concrete takes professional tools.
Will my water meter show a drain leak?
No. Drain leaks aren't under pressure, so the meter won't move. Camera inspection and hydrostatic testing are used instead.
Think you have a slab leak?Call now to talk it through and get connected with a local Woburn plumber.
Call (781) 483-8802Repair options
What are the ways to fix a slab leak?
The main options are direct access spot repair through the floor, rerouting the line above the slab, epoxy pipe lining, and whole-home repiping for homes with repeat leaks.
Is rerouting better than breaking the slab?
Often, especially for leaks under finished floors or repeat leaks. Spot repair can cost less for one leak in an easy-to-reach spot. See pipe rerouting.
How long does slab leak repair take?
A spot repair often takes a day. A reroute takes 1 to 2 days. Repiping a home takes 2 to 5 days. Drying out water damage adds 3 to 5 days.
Cost and insurance
How much does slab leak repair cost?
Most repairs cost about $630 to $4,400 based on 2026 national guides. Detection is about $150 to $400, reroutes $1,500 to $4,500, and repipes $4,000 to $15,000 or more.
Does homeowners insurance cover slab leaks?
Many policies cover sudden water damage and sometimes the cost to access the pipe, but not the pipe itself. Gradual leaks are often excluded. Read our slab leak insurance guide.
Is emergency service more expensive?
Usually. Night, weekend and holiday labor costs more. Ask for pricing on the call before work starts.
Water running where it shouldn't?Call any time, day or night. Every hour of leaking adds to the damage.
Call (781) 483-8802Using our service
Are you a plumbing company?
No. Slab Leak Repair Pro is a free referral service. We connect you with independent local providers who do the work.
Does it cost anything to call?
No. Calling is free and there's no obligation. The provider gives you pricing for their work.
What hours are you available?
Our phone line is open 24 hours a day, 7 days a week.