What water heater installation costs in 2026
A same-for-same tank swap is the common job. Tankless costs more when the gas line, the vent, or the circuit has to change.
| Installed price | HomeGuide | Fixr | This calculator |
|---|---|---|---|
| Tank | $600 to $3,100 | $600 to $2,500 | $600 to $3,100 |
| Tankless | $1,400 to $5,600 | $1,000 to $4,000 | $1,000 to $5,600 |
| Gas, any type | $700 to $2,700 | ||
| Electric, any type | $500 to $3,500 |
HomeGuide's tank figure is a standard tank replacement. Fixr's national range for a gas tank install is $900 to $3,000, with an average around $1,400. The calculator uses the wider of the two type ranges.
Size, fuel, venting and the lines
HomeGuide's installed price rises with the tank: $500 to $1,900 for 30 gallons, $600 to $3,000 for 40, $700 to $3,100 for 50, and $1,100 to $3,600 for 75. Fixr's 40 gallon band is $550 to $2,300 and its 50 gallon band is $700 to $2,500.
Fuel sits inside those ranges. Fixr prices electric installs at $500 to $3,500 and natural gas at $700 to $2,700.
| Add-on | HomeGuide | Fixr |
|---|---|---|
| Vent, new | $500 to $1,500 | Power vent $300 to $1,000 |
| Vent, replace what is there | $100 to $600 | |
| Larger gas line | $350 to $2,000 | |
| New electrical circuit | $250 to $900 | |
| New utility rough-in | $400 to $1,800 | |
| Haul away the old unit | $75 to $500 | $75 to $500 |
| Permit | $50 to $200 | $25 to $1,500 |
Haul-away is often already in a replacement price. Tick it only when the quote leaves it out. A permit is the same: the range is wide because Fixr includes jobs that add gas or electrical work.
Labor on its own is $200 to $1,000 for a standard tank and $600 to $2,500 to go tankless (HomeGuide). Fixr puts labor at $300 to $1,500. Those dollars are already in the installed ranges, so this calculator does not add them again.
Pricing an install as a plumber
Sample numbers to show the math. Use your own costs, crew rate and margin.
Take a 50 gallon gas tank, same location, old unit hauled, no new vent and no new gas line:
| Line | How it's figured | Amount |
|---|---|---|
| Heater | 50 gallon gas tank at supplier cost, plus 20% | $1,080.00 |
| Labor | 3 hours at $125 an hour, billable | $375.00 |
| Fittings | Valves, connectors and flue parts | $106.00 |
| Haul-away | Old tank | $60.00 |
| Cost | $1,621.00 | |
| Price at a 20% margin | $1,621 divided by 0.8 | $2,026.25 |
Sample figures, not from the sources above.
That sits inside both guides' tank ranges. The plumbing pricing guide works the same swap from a billable rate, and the plumbing estimate template is where the lines go. A tank in a closet, where a leak would cause damage, is the plumbing quote template.
Questions about water heater cost
How much does it cost to install a gas water heater?+
Fixr puts a natural gas install at $700 to $2,700. HomeGuide's standard tank replacement, which is often gas, is $600 to $3,100 installed, and a 50 gallon tank is $700 to $3,100.
How much is water heater installation labor?+
HomeGuide puts labor at $200 to $1,000 for a standard tank and $600 to $2,500 when the job becomes tankless. Fixr puts labor at $300 to $1,500, or $45 to $200 an hour.
Is haul-away included in a water heater replacement?+
Often. Both guides put a separate haul-away at $75 to $500 when it is not already in the price. Ask before you compare two quotes.
How much should I charge to install a water heater?+
Price the unit, the hours, the fittings, and haul-away from your own costs, then check the total against the published range for that heater. A same-for-same tank and a tankless conversion are different jobs.
How this calculator works
The price range for the size of the job comes from the published guides below, from the lowest low to the highest high where they differ. Where your job lands inside that range is our method: each answer that makes the work harder or slower moves it toward the top, and each that makes it easier moves it down. Extras use each guide's published price for that item, and the likely price uses the middle of the extra's range.
This result is a planning estimate, and permits, codes and utility rules vary by location.
Prices checked October 16, 2026.