- Boiler replacement usually costs $3,650 to $9,250, about $6,000 typical.
- Replacing a home heating boiler, unit and installation.
What boiler replacement costs
Most homeowners pay $3,650 to $9,250 for boiler replacement, and $6,000 is a typical price. Replacing a home heating boiler, unit and installation.
| Price | |
|---|---|
| Low end | $3,650 |
| Typical | $6,000 |
| High end | $9,250 |
The range blends Fixr, HomeAdvisor, This Old House and Today's Homeowner (method below). Where you live matters: Koira's estimate is $5,448 in Arkansas and $6,923 in Hawaii.
What drives the price
- Fuel. Gas, oil, propane and electric boilers differ in price and venting.
- Efficiency. Condensing boilers cost more and need new venting and a drain.
- Size. This Old House puts 30,000 to 50,000 BTU/h boilers at $4,000 to $6,000.
- Piping. Changes to near-boiler piping, pumps and zone valves add labor.
Boiler replacement cost by fuel
| Fuel | Price | Source |
|---|---|---|
| Electric | $2,500 to $6,000 | Fixr |
| Propane | $2,800 to $9,000 | Fixr |
Extra costs to plan for
| Item | Price | Source |
|---|---|---|
| Contractor's first visit | $150 to $250 | HomeAdvisor |
These often show up as separate lines. When you compare boiler replacement quotes, line them up item by item.
Boiler replacement cost by state
Koira estimates for each state, built from the national $3,650 to $9,250. About 40% of a boiler replacement price is labor, and only that part is scaled by the state's median wage for construction and extraction workers. A starting point, not a quote.
| State | Low | Typical | High |
|---|---|---|---|
| Alabama | $3,362 | $5,527 | $8,521 |
| Alaska | $4,044 | $6,648 | $10,249 |
| Arizona | $3,613 | $5,939 | $9,156 |
| Arkansas | $3,314 | $5,448 | $8,400 |
| California | $3,947 | $6,489 | $10,003 |
| Colorado | $3,690 | $6,066 | $9,352 |
| Connecticut | $3,946 | $6,487 | $10,001 |
| Delaware | $3,645 | $5,992 | $9,238 |
| District of Columbia | $3,909 | $6,426 | $9,907 |
| Florida | $3,400 | $5,589 | $8,617 |
| Georgia | $3,411 | $5,607 | $8,644 |
| Hawaii | $4,211 | $6,923 | $10,673 |
| Idaho | $3,567 | $5,863 | $9,039 |
| Illinois | $4,166 | $6,848 | $10,557 |
| Indiana | $3,707 | $6,093 | $9,393 |
| Iowa | $3,648 | $5,997 | $9,245 |
| Kansas | $3,538 | $5,816 | $8,966 |
| Kentucky | $3,493 | $5,742 | $8,852 |
| Louisiana | $3,414 | $5,613 | $8,653 |
| Maine | $3,669 | $6,031 | $9,298 |
| Maryland | $3,658 | $6,013 | $9,271 |
| Massachusetts | $4,090 | $6,723 | $10,364 |
| Michigan | $3,690 | $6,066 | $9,352 |
| Minnesota | $3,970 | $6,526 | $10,060 |
| Mississippi | $3,337 | $5,486 | $8,458 |
| Missouri | $3,704 | $6,088 | $9,386 |
| Montana | $3,685 | $6,057 | $9,338 |
| Nebraska | $3,509 | $5,768 | $8,892 |
| Nevada | $3,704 | $6,088 | $9,386 |
| New Hampshire | $3,663 | $6,022 | $9,284 |
| New Jersey | $3,991 | $6,561 | $10,115 |
| New Mexico | $3,413 | $5,611 | $8,650 |
| New York | $3,916 | $6,438 | $9,925 |
| North Carolina | $3,401 | $5,591 | $8,619 |
| North Dakota | $3,690 | $6,065 | $9,351 |
| Ohio | $3,714 | $6,105 | $9,412 |
| Oklahoma | $3,382 | $5,560 | $8,572 |
| Oregon | $3,811 | $6,265 | $9,658 |
| Pennsylvania | $3,674 | $6,039 | $9,311 |
| Rhode Island | $3,736 | $6,141 | $9,467 |
| South Carolina | $3,405 | $5,598 | $8,630 |
| South Dakota | $3,419 | $5,620 | $8,665 |
| Tennessee | $3,429 | $5,636 | $8,689 |
| Texas | $3,396 | $5,582 | $8,605 |
| Utah | $3,591 | $5,904 | $9,101 |
| Vermont | $3,655 | $6,008 | $9,262 |
| Virginia | $3,574 | $5,875 | $9,057 |
| Washington | $4,041 | $6,643 | $10,241 |
| West Virginia | $3,603 | $5,922 | $9,130 |
| Wisconsin | $3,750 | $6,165 | $9,505 |
| Wyoming | $3,655 | $6,008 | $9,263 |
Rural areas and cities in the same state can differ a lot.
How we got these numbers
| Guide | Range | Average | Use |
|---|---|---|---|
| Fixr | $3,000 to $8,500 | $6,100 | Counted |
| HomeAdvisor | $3,605 to $8,448 | $5,911 | Counted |
| This Old House | $4,500 to $10,000 | Not given | Counted |
| Today's Homeowner | $3,700 to $12,000 | $5,900 | Counted |
We take the middle of the guides' lows for the low end, the middle of their highs for the high end, and the middle of their averages for the typical boiler replacement price. Where a guide gives no average we use its midpoint. All read on October 9, 2026.
Labor share used: 40%. Equipment is the larger part of a boiler replacement. Koira's assumption for HVAC replacements. State factor: the state's median hourly wage for construction and extraction workers over the national $28.63 (BLS, May 2025), kept between 0.7 and 1.4.
For contractors: price this job in Koira
HVAC replacements are big decisions, so good, better and best options on one estimate let the homeowner choose.
On Koira's free Office plan you build the estimate, text it, collect the deposit and turn it into an invoice when the boiler replacement is done. Price this job in Koira, free.
Sources: Fixr, boiler replacement cost; HomeAdvisor, boiler replacement cost; This Old House, boiler replacement cost; Today's Homeowner, boiler replacement cost; BLS Occupational Employment and Wage Statistics, May 2025 (state and national files). Prices checked October 9, 2026. More for your trade: how the trade runs on Koira.