Leak Detection & Repair
Overview
What to expect
A hidden leak can quietly ruin floors, walls, and foundations long before you ever see a drop. If your water bill jumped, you hear running water with everything off, or you've spotted damp spots, warm floors, or a musty smell, MainLine Plumbing's licensed plumbers can find the source, usually without tearing your home apart.
We use non-invasive detection, acoustic listening equipment, pressure testing, and moisture meters, to pinpoint leaks in supply lines, under slabs, behind walls, and at fixtures. Locating the leak precisely is the whole game: it means we open up the smallest possible area and fix exactly the right spot, saving you money on both the repair and the restoration afterward.
Once we've found it, we repair it right, from a simple fitting or pinhole patch to a slab-leak reroute or a section of repipe when a line has failed for good. You'll get a clear written diagnosis and a flat-rate price before any work starts, and honest guidance on whether a targeted repair or a larger fix is the better value for your home.
What's Included
- Non-invasive acoustic and pressure-based detection
- Slab, wall, supply-line, and fixture leaks
- Pinpoint location to minimize wall and floor damage
- Pinhole-leak and failed-fitting repairs
- Slab-leak reroutes when needed
- Written diagnosis and flat-rate price upfront
FAQ
Leak Detection & Repair questions, answered
How do you find a leak without tearing up my house?
We use acoustic listening devices, line pressure testing, and moisture meters to locate the leak precisely before opening anything. That means we only access the exact spot that needs repair, not whole walls or floors.
What are the signs of a hidden water leak?
A spike in your water bill, the sound of running water when everything is off, warm or damp floor spots, peeling paint, mold or a musty smell, or a water meter that keeps moving. Any of these is worth a professional check.
What is a slab leak and is it serious?
A slab leak is a leak in the water lines running beneath your concrete foundation. It's serious, left alone it can damage flooring and the foundation, so it should be located and repaired or rerouted promptly. We handle both.
Will my insurance cover leak repair?
Policies vary, but many cover sudden water damage even if not the leak repair itself. We provide clear documentation of the diagnosis and work performed to make filing a claim easier.
Related Services
You might also need
Repiping
Rusty water, leaks, or low pressure? We replace old galvanized and failing pipes with modern PEX or copper.
Drain Cleaning
Slow or backed-up drains? We clear kitchen, bath, and main-line clogs and find what caused them.
Emergency Plumbing
Burst pipe or flooding at 2am? Around-the-clock response with no after-hours surcharge.
Why MainLine
We Do More Than Fix Pipes. We Earn Your Trust
Any company can show up and replace a part. We show up on time, explain exactly what's wrong, and fix it right, at the price we quoted. That's why 9 in 10 of our customers call us again.
Schedule Service TodayFast 24/7 Emergency Response
A burst pipe or sewage backup can't wait until morning. We answer the phone around the clock and aim to have a licensed plumber at your door fast, day, night, weekends, and holidays.
Licensed, Bonded & Insured
Every job is performed by a licensed, background-checked plumber and backed by our written workmanship warranty. Fully bonded and insured for your protection. License #PL48291.
Upfront, Flat-Rate Pricing
You approve a clear, written price before we start, no hourly meter, no overtime charges, no surprise upsells. The price we quote is the price you pay, period.
The Process
Getting Help Is Simple
No runaround, no surprises. Here's exactly what happens when you call MainLine.
Call or Request Online
Reach us 24/7 by phone or request service through our online form. We confirm your appointment fast and give you a clear arrival window, no all-day waiting.
We Diagnose & Quote
Your licensed plumber inspects the problem, explains exactly what's going on, and hands you a flat-rate written price before any work begins. No pressure.
We Fix It Right
We complete the job with quality parts, clean up completely, and back our workmanship with a warranty. Most repairs are finished the same day.
Real Reviews
Trusted by Columbus Homeowners
Woke up to water pouring through the kitchen ceiling at 2am. MainLine had a plumber out within the hour, found the failed supply line, and stopped the damage fast. Lifesavers, and the price was exactly what they quoted.
Maria T.
Riverside
Our water heater died right before a houseful of guests. They installed a new one the same day, walked me through the warranty, and left the garage cleaner than they found it. Couldn't ask for more.
James K.
Oakwood Heights
Got three quotes to repipe our old house. MainLine was the most transparent about the scope and the only one who gave me a flat price in writing. Two years later, not a single issue.
Linda R.
Lakeside
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(614) 555-0190