How much does it cost to install a water heater in 2026?

Quick price table

National starting points, not quotes. Each source defines its scope differently; the scope notes follow the table.

Install	Source and date	Range
Labor only, standard tank	HomeGuide, 2026[9]	$200 to $1,000
Labor only, tankless	HomeGuide, 2026[9]	$600 to $3,000
Basic tank install, gas, existing lines and vent	Homewyse, May 2026[1]	$1,542 to $1,793 per heater
New electric tank, with a new 240-volt circuit	Homewyse, May 2026[2]	$1,920 to $2,254 per heater
Standard tank, 40 to 50 gallon, installed	HomeGuide, 2026[4]	$600 to $3,100
50-gallon gas tank, full code scope	ProjectCostPro, Jul 2026[6]	$2,900 to $5,050
Gas tankless, with vent and gas connection upgrades	Homewyse, May 2026[3]	$3,293 to $3,859 per heater
Tankless, all fuels, installed	HomeGuide, 2026[4]	$1,400 to $5,600
Hybrid heat pump, installed	HomeGuide, 2026[4]	$2,000 to $4,600

What each scope covers. Homewyse's basic tank scope covers mounting the heater, connecting the vent to the existing duct, connecting water and gas to existing lines, and a leak and cycle test^[1]. Its electric scope includes a new dedicated 240-volt, 40-amp circuit^[2]. Its gas tankless scope includes upgrading the vent and gas connection to 200,000 BTU^[3]. ProjectCostPro's range includes removal of the old unit, an expansion tank, a drain pan and a permit^[6].

For a same-spot swap, see replacement cost, which has a labor vs parts example. For tankless pricing and sizing, see tankless cost.

How much does Lowe's charge to install a water heater?

Lowe's does not publish an installation price on its water heater installation page. It says the cost depends on the type of heater, the fuel (gas often costs more to install than electric), and local labor and permit fees^[10]. You request a free consultation, and an independent installer gives you a quote^[10].

Home Depot also does not list an installation price on its page. It builds each quote from four parts: the product, basic installation, permit charges and bringing the system up to code^[11]. It sends a local authorized service provider for an in-home consultation before the final quote^[11].

Here is what each store says its install includes, next to Homewyse's basic estimate. Gaps in this table are where extra charges show up.

Item	Lowe's[10]	Home Depot[11]	Homewyse basic tank estimate[1]
Removal and disposal of old unit	Included	Free haul-away	Listed as an option
Permit	Installer handles it, unless local rules make it the customer's job	Separate permit charge; varies by city	Fees not included
Code upgrades	Not listed as included	Separate part of the price; extra charges may apply	Not included
Attic or crawlspace	Extra fee	Extra charges may apply for complex jobs	Not stated
Same day, weekend or holiday	Emergency fee after noon, weekends and holidays	Same day Monday to Friday if requested before noon and within 30 miles of a store	Not stated
Fuel change or new location	Base covers same location, same power source	Not stated	System changes not included
Labor warranty	Ask; see its warranty FAQ	Up to 3 years	Not stated

Home Depot also says it will match a lower written like-for-like quote from a licensed and insured plumbing contractor, before or within 30 days of install^[11].

Why do plumbers charge so much to install a water heater?

• Training and licensing. Most states and some cities require plumbers to be licensed, often after 2 to 5 years of experience and an exam^[12]. The median plumber wage was $30.67 an hour in May 2025^[12]; a company's rate also covers costs beyond wages.
• Hours. A new tank installation takes 4 to 6 hours, against 2 to 4 for a replacement^[9].
• Work beyond the heater. Gas lines, venting and electrical circuits are priced on top of the base install (see below).
• Code and permits. The installer has to fix code items to pass inspection and pull the permit.

What a basic estimate leaves out

Homewyse's tank estimate does not include building code compliance work, changes to HVAC, electrical or plumbing systems, structural changes, sales tax or permit fees^[1]. It also says to add 13% to 22% if a general contractor supervises the job^[1].

Code work is common on older installs. If the existing heater has no expansion tank, no drain pan where one is required, or an undersized vent, the plumber has to fix it to pass inspection. If the old tank is leaking now, see water heater leaking first.

The add-ons that change the total

HomeGuide's 2026 line items^[4][5]:

Item	Typical cost
Removal and disposal of the old unit	$75 to $500 (often included)[4]
Expansion tank	$100 to $400[4]
Bringing the install up to code	$75 to $500 or more[4]
Permits for gas or electrical work	$50 to $200[4]
Moving the heater to a new location	$500 to $2,500[4]
Difficult access (attic, tight closet)	$125 to $300 per extra labor hour[4]
Larger gas line, or a new line	$350 to $2,000[5]
New venting	$100 to $600[5]
Dedicated electrical circuit	$250 to $900[5]
Electrical panel replacement	$850 to $1,700[5]

Installs that cost more than a swap: a first-time install or new location; electric to gas (gas line and venting); gas to electric or heat pump (a 240-volt circuit, which Homewyse prices into its electric install^[2]); and tank to tankless (often a larger gas line and new venting).

Will HomeServe replace my water heater?

Only if you already have one of its plans. HomeServe's Water Heater Repair and Replacement Plan covers repair or replacement of a tank-based electric, natural gas or propane water heater damaged by normal wear and tear^[13]. If the heater cannot be repaired, the balance of your annual benefit goes toward a like-for-like replacement^[13]. Coverage is not available everywhere, and benefits, limits and exclusions vary by plan^[13]. Read your plan's terms for the benefit cap and for what happens with code work, a different size or a tankless unit.

Permits

Permit fees are set locally, and Homewyse leaves them out of its numbers^[1]. One published example: Houston charges $34.24 for the first three water heaters plus a $33.56 admin fee, lists a $97.56 minimum permit fee, and requires the permit to be pulled by a master plumber registered with the city^[7]. See permit fees by city.

No federal tax credit in 2026

The IRS says the 25C Energy Efficient Home Improvement Credit is not allowed for property placed in service after December 31, 2025^[8]. Utility rebates are separate; check your utility's own page.

What a complete quote must list

A quote missing any of these lines is not cheaper; it is incomplete.

• Exact model, size and first-hour rating (or flow rating for tankless)
• Removal and disposal of the old heater
• Expansion tank, drain pan and relief valve discharge pipe
• Gas line, gas connector and venting work
• Electrical work, and who does it
• Attic, closet or after-hours charges
• The permit, its fee, and who pulls it
• Labor warranty length, separate from the heater warranty

When to call a pro

• Any install that touches gas lines, venting or a 240-volt circuit: these are licensed trades and usually need a permit.
• A first-time install, a new location or a fuel change.
• An older install that may need code upgrades to pass inspection.
• To turn a national range into a firm price for your home.