Tankless Water Heater Installation Cost in Connecticut
$1,450 – $4,650We estimate tankless water heater installation in Connecticut at $1,450 to $4,650 for a whole-house tankless unit replacing a tank. The national estimate is $1,400 to $4,400. Connecticut plumber pay is 21% above the national median, ranking 14 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 | $93 | $167 |
| Estimated total | $1,450 | $4,650 |
Our estimate, not a quote. Billed rate is the Connecticut median wage from BLS (2025, $37.16 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 Connecticut
People doing plumbing work must have the appropriate Connecticut license, in addition to any home improvement registration.
Check a license with Connecticut eLicense License Lookup
Compared with neighboring states
| State | Median wage | Low | High |
|---|---|---|---|
| Massachusetts | $45.14 | $1,550 | $5,050 |
| New York | $37.26 | $1,450 | $4,700 |
| Rhode Island | $36.77 | $1,450 | $4,650 |
Other plumber jobs in Connecticut
- 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 · Connecticut 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.