From North Hampton to every corner of St. Louis, MGA Plumbing provides expert tankless water heater installation with upfront quotes and a satisfaction guarantee. Book online or call (888) 480-9811.
Tankless water heaters heat water on demand — endless hot water, up to 30% lower energy use and a footprint the size of a suitcase. Proper sizing for Missouri's cold groundwater and correct gas and venting are critical, and that's where experience counts.
We also service existing tankless units: descaling, error codes, flow sensors and ignition problems.
Homes in St. Louis range from older houses with original galvanized and cast iron plumbing to new construction with PEX — and each needs a different approach to tankless water heater installation. Our St. Louis plumbers know the local housing stock, soil conditions and water quality, so you get a lasting fix instead of a temporary patch.
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.
Nights, weekends and holidays — a real plumber, not an answering machine.
Flat-rate quotes approved by you before work begins.
Homes, restaurants, offices, multifamily and retail.
Shoe covers, drop cloths and a thorough clean-up every time.
“Great experience with tankless water heater installation at our home in St. Louis. On time, honest, and finished the same day. Will call again.”
“Called at 10pm with water pouring through the kitchen ceiling. The plumber was at our St. Louis house in under an hour, shut it off, and had the pipe fixed before midnight. Price was exactly what they quoted.”
Yes. MGA Plumbing offers same-day and 24/7 emergency tankless water heater installation throughout St. Louis, MO. Call (888) 480-9811 and we'll dispatch the nearest plumber.
Common signs include: hot water runs out fast, want lower energy bills and limited utility closet space. If you notice any of these in your St. Louis home or business, call (888) 480-9811 for a fast diagnosis.
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 tankless water heater installation pricing lower than the big franchises — and there are never overtime fees.
Yes — we provide tankless water heater installation for restaurants, offices, retail stores, apartment buildings and industrial sites across St. Louis.
We also provide tankless water heater installation in these nearby communities:
Same-day service · Upfront pricing · 24/7 emergency response
Call (888) 480-9811