Homeowners and businesses across St. Louis, MO rely on MGA Plumbing for dependable backflow testing. We're open 24 hours a day, 7 days a week, so help is always one call away. Transparent flat-rate pricing before any work begins.
Backflow preventers protect the public water supply from contamination and most utilities require annual testing by a certified tester. We test, certify, file the paperwork and repair or replace failed devices for homes, irrigation systems, fire sprinklers and commercial properties.
Call before your deadline — same-week scheduling is usually available.
Missouri's hard water, freeze-thaw winters and clay soil put extra stress on plumbing in St. Louis. Backflow Testing 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.
Most St. Louis calls are handled the same day you call.
Shoe covers, drop cloths and a thorough clean-up every time.
Homes, restaurants, offices, multifamily and retail.
Flat-rate quotes approved by you before work begins.
“Great experience with backflow testing at our home in St. Louis. On time, honest, and finished the same day. Will call again.”
“Scheduled online, got a text when the plumber was on the way, and the price matched the quote. Easy and professional.”
Absolutely. All backflow testing performed by MGA Plumbing in St. Louis is backed by our workmanship guarantee.
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 backflow testing pricing lower than the big franchises — and there are never overtime fees.
Yes — we provide backflow testing for restaurants, offices, retail stores, apartment buildings and industrial sites across St. Louis.
Common signs include: annual test notice from the water utility, new irrigation system and commercial property compliance. If you notice any of these in your St. Louis home or business, call (888) 480-9811 for a fast diagnosis.
We also provide backflow testing in these nearby communities:
Same-day service · Upfront pricing · 24/7 emergency response
Call (888) 480-9811