Master plumber on the phone. Master plumber at the door.Licensed & insured in MA & NH · Mon–Fri 7:00 AM – 6:00 PM · Sat–Sun 7:00 AM – 12:00 PM
JSJ.SAR PLUMBING& Heating LLC

Water Heaters

Water heater replacement in Lowell, MA and southern New Hampshire

Hot water back. Installed to code. Built to last.

Leaking tanks, oil-fired units on their last year, propane bills that do not make sense, and tankless when a basement flood has already made the point.

We replace traditional tanks, heat pump water heaters, tankless units, electric, gas, propane, and oil-fired heaters. Code extras are not optional: mixing valves, expansion tanks charged correctly, drain pans that actually drain, leak shutoffs when you travel.

  • 40- and 50-gallon tank replacements
  • Bradford White G2 heat pump water heaters, including 65-gallon
  • Tankless water heaters
  • Oil-fired to heat pump conversions
  • Propane power-vented replacements
  • Emergency / same-day swaps when stock is available
  • Mixing valves, expansion tanks, vacuum breakers
  • FloodStop-style leak shutoffs
  • Pairing new heaters with filtration so scale does not kill the unit
Heat pump water heater install

Why heat pump / tankless come up

Heat pump units pull heat from the air, cut utility cost, and often qualify for Energy Star rebates. We have paired them with solar and with Halo conditioners.

Tankless is endless hot water and a smaller footprint — the right call after an 80-gallon tank puts an inch of water on the basement floor.

G2 65-gallon heat pump + Halo Ion Plus + Caleffi mixing valve
John and Lisa: leaking oil-fired heater to Bradford White heat pump
Tankless water heater — hot water restored the same day
Sunday morning leak, heater swapped that day
How fast can you replace a leaking water heater?

If we can get the unit, the same day is possible. Call. Do not wait on a text.

Do you set expansion tanks correctly?

Yes. An uncharged tank fails early. We charge them.

Will a heat pump work in my basement?

Often. We will tell you if the space, electric, and drain setup are wrong for it.

Related: Water Filtration · Boilers · Plumbing

Need a plumber in Lowell or southern New Hampshire?

Tell us what is leaking, failing, or due for replacement. We will tell you straight.

Request a Quote(978) 905-9269