Tankless Water Heater Installation Cost
$1,400 – $4,400A typical tankless water heater installation costs about $1,400 to $4,400 in the U.S. That covers a whole-house tankless unit replacing a tank. The range reflects parts, job difficulty and local labor rates.
| 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 national median wage from BLS (2025, $30.67 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. |
This job often needs a permit. Check with your local building department before work starts.
Estimated cost by state
| State | Plumber median wage | Low | High |
|---|---|---|---|
| Alabama | $28.21 | $1,350 | $4,250 |
| Alaska | $45.15 | $1,550 | $5,050 |
| Arizona | $29.84 | $1,350 | $4,350 |
| Arkansas | $23.39 | $1,300 | $4,050 |
| California | $35.01 | $1,450 | $4,600 |
| Colorado | $30.40 | $1,400 | $4,350 |
| Connecticut | $37.16 | $1,450 | $4,650 |
| Delaware | $31.11 | $1,400 | $4,400 |
| District of Columbia | $48.57 | $1,600 | $5,200 |
| Florida | $25.44 | $1,300 | $4,150 |
| Georgia | $27.50 | $1,350 | $4,250 |
| Hawaii | $37.53 | $1,450 | $4,700 |
| Idaho | $25.18 | $1,300 | $4,150 |
| Illinois | $48.05 | $1,600 | $5,150 |
| Indiana | $36.69 | $1,450 | $4,650 |
| Iowa | $30.72 | $1,400 | $4,400 |
| Kansas | $31.36 | $1,400 | $4,400 |
| Kentucky | $30.84 | $1,400 | $4,400 |
| Louisiana | $30.62 | $1,400 | $4,400 |
| Maine | $30.77 | $1,400 | $4,400 |
| Maryland | $31.44 | $1,400 | $4,400 |
| Massachusetts | $45.14 | $1,550 | $5,050 |
| Michigan | $38.56 | $1,500 | $4,750 |
| Minnesota | $45.39 | $1,550 | $5,050 |
| Mississippi | $26.67 | $1,350 | $4,200 |
| Missouri | $32.11 | $1,400 | $4,450 |
| Montana | $38.44 | $1,500 | $4,750 |
| Nebraska | $29.31 | $1,350 | $4,300 |
| Nevada | $29.62 | $1,350 | $4,350 |
| New Hampshire | $32.12 | $1,400 | $4,450 |
| New Jersey | $37.61 | $1,450 | $4,700 |
| New Mexico | $29.54 | $1,350 | $4,350 |
| New York | $37.26 | $1,450 | $4,700 |
| North Carolina | $27.44 | $1,350 | $4,250 |
| North Dakota | $30.56 | $1,400 | $4,400 |
| Ohio | $30.45 | $1,400 | $4,350 |
| Oklahoma | $27.87 | $1,350 | $4,250 |
| Oregon | $46.66 | $1,600 | $5,100 |
| Pennsylvania | $32.73 | $1,400 | $4,450 |
| Rhode Island | $36.77 | $1,450 | $4,650 |
| South Carolina | $25.93 | $1,300 | $4,150 |
| South Dakota | $24.82 | $1,300 | $4,100 |
| Tennessee | $28.17 | $1,350 | $4,250 |
| Texas | $28.77 | $1,350 | $4,300 |
| Utah | $29.76 | $1,350 | $4,350 |
| Vermont | $29.89 | $1,350 | $4,350 |
| Virginia | $29.07 | $1,350 | $4,300 |
| Washington | $38.96 | $1,500 | $4,750 |
| West Virginia | $27.39 | $1,350 | $4,250 |
| Wisconsin | $39.04 | $1,500 | $4,750 |
| Wyoming | $30.01 | $1,400 | $4,350 |
Common questions
How much does tankless water heater installation cost?
A typical tankless water heater installation costs about $1,400 to $4,400 in the U.S. That covers a whole-house tankless unit replacing a tank. The range reflects parts, job difficulty and local labor rates.
Which states cost the most for tankless water heater installation?
Labor is the part that changes by state. See the table on this page for each state's estimate.
How long does it take to install a tankless water heater?
This Old House says installation by a licensed plumber typically takes 4 to 8 hours, and that your home's current setup affects how complex the job is. Source
Can a homeowner install a tankless water heater?
Rinnai's Value Series manual says installation and service must be performed by a licensed professional, that not following its instructions may cause a fire or explosion, and that improper installation may void the warranty. If you smell gas, leave and call your gas supplier from a neighbor's phone, or the fire department if you cannot reach it. Source
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.