Tankless Water Heater Installation Cost in Maine
$1,400 – $4,400We estimate tankless water heater installation in Maine at $1,400 to $4,400 for a whole-house tankless unit replacing a tank. The national estimate is $1,400 to $4,400. Maine plumber pay is 0% above the national median, ranking 25 of 51.
| Part of the job | Low | High |
|---|---|---|
| Parts and materials (our assumption) | $1,000 | $3,000 |
| Labor hours (our assumption) | 5 | 10 |
| Billed labor rate per hour | $77 | $138 |
| Estimated total | $1,400 | $4,400 |
Our estimate, not a quote. Billed rate is the Maine median wage from BLS (2025, $30.77 an hour) times 2.5 to 4.5 to cover payroll costs, overhead, travel and profit. How we estimate
What our assumptions are based on
| Item | Sourced figure | Basis | Source |
|---|---|---|---|
| Labor hours | 4 – 10 | 4 to 8 hours (This Old House); 6 to 10 hours (Fixr). Bob Vila says close to 3 hours; that figure is not in this range. | This Old House, Fixr |
What other publishers report
| Publisher | Low | High | Scope |
|---|---|---|---|
| This Old House | $1,200 | $3,500 | Equipment and labor. Page dated June 2026. |
| Fixr | $2,500 | $4,500 | National average range, installed. Page dated January 2025. |
| Bob Vila | $1,333 | $3,721 | Installed, citing Angi and HomeAdvisor. Page dated October 2023. |
Who can legally do this in Maine
The State of Maine licenses plumbers, who can face discipline from their licensing board if they violate Maine law or the board's rules.
Compared with neighboring states
| State | Median wage | Low | High |
|---|---|---|---|
| New Hampshire | $32.12 | $1,400 | $4,450 |
Other plumber jobs in Maine
- Toilet Replacement
- Faucet Replacement
- Drain Cleaning
- Garbage Disposal Replacement
- Water Heater Replacement
- Pipe Repair
- Whole-House Repipe
- Sewer Line Repair
Tankless Water Heater Installation cost in every state · Maine home repair guide
Sources
General information, not professional advice. Conditions, codes and prices vary. Turn off power, gas or water before any work, and hire a licensed professional when in doubt. Cost figures are our estimates, not quotes.