What is a typical tankless water heater cost?

For any fuel type, installed, the typical figure is $2,650, within $1,400 to $4,750.

Does the fuel type change the price?

HomeGuide gives electric at $1,400 to $3,000, propane at $1,600 to $4,500 and natural gas at $2,100 to $5,600, all installed. Angi's figures by fuel may not include installation.

How much of the cost is labor?

Angi gives installation labor at $600 to $1,850 and HomeGuide at $600 to $2,500. These are shown for context and are not added to the estimate.

Will I need gas line or electrical work?

Some homes do. HomeGuide gives a gas line upgrade at $350 to $2,000, and electrical work has a combined range of $225 to $650. A licensed installer can confirm what your home needs.

Does this guide cover tank water heaters?

No. This page covers tankless units. The water heater replacement guide covers tank and hybrid units too.

Tankless water heater cost

Prices checked October 21, 2026

Typical installed cost

$2,650

Sourced installed range, not a quote

$1,400 to $4,750

Tankless water heater cost for any fuel type, installed, has a typical figure of $2,650, within a sourced range of $1,400 to $4,750. The ranges on this page come from two sources, Angi and HomeGuide. This page is about tankless units only; the water heater replacement guide covers tank and hybrid units too. Use the figure as a starting budget, not a quote.

By fuel type

The row combines one range from each of the two sources for a tankless unit of any fuel type. HomeGuide includes installation. Angi does not say whether its headline figures include installation, and it lists labor and materials separately.

Fuel type, installed costs
Fuel type	Low	Typical	High
Any fuel type, installed	$1,400	$2,650	$4,750

Price by fuel type. The median rule combines the two supplied ranges, and typical is the median of the source midpoints.

See each source's figures

Any fuel type, installed
- Angi: $1,406 to $3,902; stated average $2,641. Updated August 3, 2026; accessed October 21, 2026. Does not say whether headline figures include installation; labor and materials are itemized separately.
- HomeGuide: $1,400 to $5,600. Updated January 2, 2026; accessed October 21, 2026. Headline and fuel totals include installation.

Permit and electrical work

Both sources price a permit and electrical work. A typical permit is $100 and electrical work $450. The two sources describe different electrical work, so treat that row as a rough guide. Each is added in full when selected.

Additional work costs
Additional work	Typical	Range	Applies to
Permit	$100	$50 to $150	Any fuel type, installed
Electrical circuit or power conversion	$450	$225 to $650	Any fuel type, installed

Each item is added once when selected. Applies to lists the rows it can be added to, not whether your job needs it.

See each source's figures

Permit
- Angi: $50 to $100. Updated August 3, 2026; accessed October 21, 2026. Does not say whether headline figures include installation; labor and materials are itemized separately.
- HomeGuide: $50 to $200. Updated January 2, 2026; accessed October 21, 2026. Headline and fuel totals include installation.
Electrical circuit or power conversion
- Angi: $200 to $400. Updated August 3, 2026; accessed October 21, 2026. Angi and HomeGuide describe different electrical work. Does not say whether headline figures include installation; labor and materials are itemized separately.
- HomeGuide: $250 to $900. Updated January 2, 2026; accessed October 21, 2026. Angi and HomeGuide describe different electrical work. Headline and fuel totals include installation.

Labor, fuel types and related work

Gas line work, venting and removing an old tank can be priced separately. These single-source figures keep their original amounts and wording.

Labor

These labor figures are shown for context. They are not added, because the range above is treated as an installed price.

Installation labor: $600 to $1,850; Source: Angi
Installation labor: $600 to $2,500; Source: HomeGuide

Installed price by fuel from HomeGuide

HomeGuide prices each fuel type with installation. These figures are not used in the range above.

Electric, installed: $1,400 to $3,000; Source: HomeGuide
Propane, installed: $1,600 to $4,500; Source: HomeGuide
Natural gas, installed: $2,100 to $5,600; Source: HomeGuide

Price by fuel from Angi

Angi does not say whether these include installation, so they may be unit prices. They are not used in the range above.

Electric: $450 to $1,500; Source: Angi
Natural gas: $1,000 to $1,500; Source: Angi
Propane: $1,000 to $1,500; Source: Angi

Related work

Each item is a separate price from one source. None is added to the estimate; ask whether a quote includes it.

Gas line upgrade: $350 to $2,000; Source: HomeGuide
Gas line adaptation: Up to $1,000; Source: Angi
Gas vent replacement: $100 to $600; Source: HomeGuide
Old tank removal: $75 to $500; Source: HomeGuide

Estimate your tankless heater

Add a permit or electrical work if your home needs it. Area level picks a part of the sourced range; it is not a local price.

Fuel type

Any fuel type, installed

Area level

Lower-cost areaAverageHigher-cost area

This picks the lower, middle or upper part of the sourced range. It is not a local price.

Additional work

PermitElectrical circuit or power conversion

Typical estimate

$2,650

Estimated range, not a quote

$2,050 to $3,700

Assumptions

Installed base: Any fuel type, installed, no size selected.
Average area level uses low-to-typical and typical-to-high midpoints as bounds, with the sourced typical unchanged.
No applicable extras included.
Extras are added in full, and sourced installed ranges are treated as not including them.
Labor rows are informational only and are not added to installed costs.

Where these numbers come from

The ranges come from two sources, Angi and HomeGuide. Their dates and scope notes are shown below. The checked date records when the dataset was reviewed, not a promise that prices are unchanged.

Angi
How Much Does a Tankless Water Heater Cost?
Updated: August 3, 2026. Accessed: October 21, 2026.
Does not say whether headline figures include installation; labor and materials are itemized separately
HomeGuide
How Much Does a Tankless Water Heater Installation Cost?
Updated: January 2, 2026. Accessed: October 21, 2026.
Headline and fuel totals include installation

The low and high are the medians of the published bounds. For two sources, the median is the mean of the pair. Typical is the median of the source midpoints. Derived figures round to twenty-five-dollar steps below a thousand dollars and fifty-dollar steps at or above it, with exact halves rounded up. The estimator selects its base bounds, adds applicable extras in full and rounds the final totals.

How we calculate

Questions people ask

What is a typical tankless water heater cost?: For any fuel type, installed, the typical figure is $2,650, within $1,400 to $4,750.
Does the fuel type change the price?: HomeGuide gives electric at $1,400 to $3,000, propane at $1,600 to $4,500 and natural gas at $2,100 to $5,600, all installed. Angi's figures by fuel may not include installation.
How much of the cost is labor?: Angi gives installation labor at $600 to $1,850 and HomeGuide at $600 to $2,500. These are shown for context and are not added to the estimate.
Will I need gas line or electrical work?: Some homes do. HomeGuide gives a gas line upgrade at $350 to $2,000, and electrical work has a combined range of $225 to $650. A licensed installer can confirm what your home needs.
Does this guide cover tank water heaters?: No. This page covers tankless units. The water heater replacement guide covers tank and hybrid units too.

Compare written quotes for the same unit and fuel, and ask whether a permit, gas line, venting, electrical work and removal of the old tank are included. Keep the source dates beside the comparison.