Tankless Water Heater Installation is one of the most requested plumbing services in Troy, Missouri — and MGA Plumbing's plumbers handle it every day. Thousands of 5-star reviews from Missouri families and businesses. Call (888) 480-9811 and get a plumber on the way.
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 Troy 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 Troy 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 Troy home or business? Serving every neighborhood in Troy and the St. Louis Metro area.
Tell us what's happening. Our dispatchers are available 24/7 and will send the closest Troy 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.
Shoe covers, drop cloths and a thorough clean-up every time.
If it isn't right, we make it right.
Nights, weekends and holidays — a real plumber, not an answering machine.
Homes, restaurants, offices, multifamily and retail.
“Needed tankless water heater installation fast and MGA Plumbing delivered. The plumber explained every step, worked clean and the price was fair. Best plumber in Troy as far as I'm concerned.”
“Called at 10pm with water pouring through the kitchen ceiling. The plumber was at our Troy house in under an hour, shut it off, and had the pipe fixed before midnight. Price was exactly what they quoted.”
Yes — we provide tankless water heater installation for restaurants, offices, retail stores, apartment buildings and industrial sites across Troy.
Yes. MGA Plumbing offers same-day and 24/7 emergency tankless water heater installation throughout Troy, MO. Call (888) 480-9811 and we'll dispatch the nearest plumber.
Absolutely. All tankless water heater installation performed by MGA Plumbing in Troy is backed by our workmanship guarantee.
We provide tankless water heater installation in Troy and surrounding communities including St. Louis, O'Fallon, St. Charles and St. Peters.
We also provide tankless water heater installation in these nearby communities:
Same-day service · Upfront pricing · 24/7 emergency response
Call (888) 480-9811