Homeowners and businesses across St. Mary, MO rely on MGA Plumbing for dependable leak detection. We're open 24 hours a day, 7 days a week, so help is always one call away. Thousands of 5-star reviews from Missouri families and businesses.
Hidden leaks under slabs, inside walls and in yards are found with acoustic listening devices, thermal imaging, tracer gas and pressure testing — pinpointing the leak to within inches so repair is surgical rather than destructive.
Most residential leak detections are completed in a single visit, with a written report you can use for insurance.
Because we dispatch from the St. Louis Metro area, a MGA Plumbing plumber can usually reach any address in St. Mary fast — including St. Louis and O'Fallon. For leak detection emergencies, that speed is the difference between a simple repair and major water damage.
Noticing any of these in your St. Mary home or business? Serving every neighborhood in St. Mary and the St. Louis Metro area.
Tell us what's happening. Our dispatchers are available 24/7 and will send the closest St. Mary 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.
Most St. Mary calls are handled the same day you call.
If it isn't right, we make it right.
Homes, restaurants, offices, multifamily and retail.
Most repairs are completed in a single visit.
“MGA Plumbing handled our leak detection quickly and courteously. They cleaned up afterward and the final bill matched the estimate exactly.”
“They answered the phone at 6am and the plumber was here by 8. Toilet was overflowing and they fixed it in 30 minutes. Lifesavers.”
Yes. MGA Plumbing offers same-day and 24/7 emergency leak detection throughout St. Mary, MO. Call (888) 480-9811 and we'll dispatch the nearest plumber.
Every job is different, so we diagnose first and give you a firm flat-rate price before any work starts. Most St. Mary customers find our leak detection pricing lower than the big franchises — and there are never overtime fees.
We provide leak detection in St. Mary and surrounding communities including St. Louis, O'Fallon, St. Charles and St. Peters.
Common signs include: high water bill with no explanation, water meter runs when everything is off and mold or mildew smell. If you notice any of these in your St. Mary home or business, call (888) 480-9811 for a fast diagnosis.
We also provide leak detection in these nearby communities:
Same-day service · Upfront pricing · 24/7 emergency response
Call (888) 480-9811