From Soulard to every corner of St. Louis, MGA Plumbing provides expert slab leak detection with upfront quotes and a satisfaction guarantee. Call (888) 480-9811 for a free quote today.
Slab leaks occur when water lines under a concrete foundation corrode or shift. Left alone they can undermine the slab itself. We locate the leak electronically, then repair by spot access, rerouting the line overhead or — when warranted — repiping.
Watch for warm floor spots, a running water sound, cracked tile and a water heater that never shuts off.
Missouri's hard water, freeze-thaw winters and clay soil put extra stress on plumbing in St. Louis. Slab Leak Detection is one of the most common calls we take here, and our trucks are stocked for it so most jobs are finished in a single visit.
Noticing any of these in your St. Louis home or business? Serving Soulard, The Hill, Central West End, Tower Grove, Dogtown, Lafayette Square and every neighborhood in St. Louis.
Tell us what's happening. Our dispatchers are available 24/7 and will send the closest St. Louis plumber.
We call when we're on the way and show up in a fully stocked truck ready to work.
We find the real cause — not just the symptom — and explain your options in plain language.
You approve the exact price before we start. No hourly surprises, no overtime fees.
Quality parts, careful workmanship and a job finished right the first time.
We leave your home clean and back every job with our workmanship guarantee.
Homes, restaurants, offices, multifamily and retail.
Shoe covers, drop cloths and a thorough clean-up every time.
Flat-rate quotes approved by you before work begins.
Nights, weekends and holidays — a real plumber, not an answering machine.
“MGA Plumbing handled our slab leak detection quickly and courteously. They cleaned up afterward and the final bill matched the estimate exactly.”
“Clean, polite, fast. Wore shoe covers, explained the problem, fixed it, and the price didn't change. Highly recommend to anyone in St. Louis.”
Every job is different, so we diagnose first and give you a firm flat-rate price before any work starts. Most St. Louis customers find our slab leak detection pricing lower than the big franchises — and there are never overtime fees.
We provide slab leak detection in St. Louis and surrounding communities including O'Fallon, St. Charles, St. Peters and Florissant.
Common signs include: warm spot on the floor, cracks in the slab or tile and water seeping from the floor. If you notice any of these in your St. Louis home or business, call (888) 480-9811 for a fast diagnosis.
Yes — we provide slab leak detection for restaurants, offices, retail stores, apartment buildings and industrial sites across St. Louis.
We also provide slab leak detection in these nearby communities:
Same-day service · Upfront pricing · 24/7 emergency response
Call (888) 480-9811