ElectrifyCost

Maine

Heat Pump Water Heater Cost in Maine

Estimate the installed cost, applicable rebates, and operating-cost change for a heat pump in Maine. Calibrated to local labor rates (1.05× HVAC multiplier), retail electricity (28.5¢/kWh), and cold climate.

Climate zone
6A
7,500 HDD
Electricity
28.5¢/kWh
EIA retail average
Natural gas
$1.85/therm
if available
Heat pump class
Cold-climate
recommended

Your details

Optional — auto-sets state

Estimated installed cost

$3,425

Typical range $2,125 – $6,275 · 240V hybrid HPWH (50 gal)

Low

$2,125

Best case

Mid

Typical

$3,425

Typical

High

$6,275

Worst case

Itemized cost breakdown

Click a row for math & sources
Line itemLowMidHigh
Total$2,125$3,425$6,275

Monthly energy impact

~Neutral

$1/ mo

Bills change very little — between -$4 and $1 per month either way.

Panel upgrade likelihood

Low risk

100A typically supports HPWH addition

  • Is a 120V plug-in or 240V hybrid model being quoted?
  • Is condensate drain work included (drain pan, pump, or gravity routing)?
  • Is the install location large enough for proper airflow (typically ≥700 cu ft)?
  • Is sound rating (dB) acceptable for the location?
  • Is old water heater removal and disposal included?
  • Which rebates require pre-approval, and have they been applied for?
  • Is the 240V circuit, outlet, or breaker work included if needed?
  • Are permits and inspection included?
  • Will the cold-air output affect any nearby living space?
  • What is the warranty on tank, compressor, and labor?

What can change this price

  • Estimates are planning ranges, not contractor quotes. Actual prices depend on your home, local labor rates, equipment, code requirements, utility rules, and contractor availability.

Heat pump rebates & credits in Maine

Program Type Amount Expires
Energy Efficient Home Improvement Credit (25C) - Heat Pump Water Heater
Federal · Credit 30% up to $2,000 2025-12-31
DOE Home Energy Rebates - Heat Pump Water Heater
Income-qualified
 Federal · Rebate $0–$1,750 2031-09-30

Frequently asked questions

How much does a heat pump water heater cost installed?

A 50-gallon 240V hybrid HPWH typically runs $2,200 to $4,200 installed nationally. A 120V plug-in unit runs $1,700 to $3,400. State labor rates and the cost of a new 240V circuit shift the band. Use the calculator above for a state-calibrated estimate.

What rebates apply to HPWHs?

The federal 25C credit expired Dec 31 2025 (OBBBA). DOE HEEHRA provides up to $1,750 for HPWHs in income-qualified households where the state has launched the program. State and utility programs vary; the rebate table above shows what applies in your state.

Where should an HPWH be installed?

HPWHs need about 700 cubic feet of free air space to maintain rated efficiency. A conditioned basement or utility room works well; an unconditioned garage is fine in moderate climates but risky where ambient drops below the unit cutoff temperature.

HPWH cost by state