Endless hot water and lower energy bills with a properly sized tankless system. Local plumbers serving Portsmouth and Rockingham County — open 24/7 with upfront pricing.
(888) 480-9811Residents of Portsmouth, NH call MJA Plumbing and Heating for tankless water heater installation because we show up fast, price fairly and stand behind our work. Serving Portsmouth, Rockingham County and all of the Seacoast and southern New Hampshire, our plumbers handle tankless water heater installation for single-family homes, condos, rentals and commercial properties. Call (888) 480-9811 now.
Tankless water heaters heat water on demand, so you never run out and never pay to keep 50 gallons hot all day. MJA Plumbing and Heating sizes the unit for New Hampshire's cold incoming water, installs gas and venting correctly, and sets it up for years of trouble-free service.
A real person picks up day or night, and an emergency plumber is dispatched immediately.
You get the price in writing before we start. No surprises on the invoice.
Most repairs finish on the first visit because the parts are already on the truck.
Our plumbers live and work in the communities we serve and know the local water and winters.
Shoe covers, drop cloths and a tidy job site every time.
If a repair we made fails, we come back and make it right.
Cold NH groundwater matters — an undersized tankless unit will disappoint. We size for winter.
We provide tankless water heater installation throughout Portsmouth and the neighboring towns of Newington, New Castle, Greenland, Rye, North Hampton, Stratham.
“Booked a plumbing inspection before we bought our house. Report was thorough and saved us a big negotiation.”
Jen K.“Our basement flooded at 2 a.m. and MJA had a plumber at the house within the hour. Pipe was fixed before breakfast.”
Karen M.“Fair price, showed up on time, explained everything. The new water heater has been perfect.”
Dave R.We offer same-day tankless water heater installation in Portsmouth and 24/7 emergency response. Call (888) 480-9811 and we will give you an arrival window right away.
You get an upfront, written price before any work starts. There are no overtime charges for nights, weekends or holidays.
Yes — we cover all of Rockingham County including Newington, New Castle, Greenland, Rye.
Emergency plumbers on call 24 hours a day across New Hampshire. Upfront pricing, same-day service.
(888) 480-9811