Cost Guide · Updated July 2026

Water Heater Replacement Cost

$900

Gas tank unit

$3,000

Tankless average

$4,500+

Complex installs

Water heater replacement and water damage restoration are two separate costs — insurance covers the damage, not the unit. See complete cost breakdowns for every heater type.

Water Heater Replacement Cost by Type

Water heater replacement cost ranges by type
Type	Cost Range	Notes
Gas tank water heater (40–50 gallon)	$900–$1,800	Most common replacement; includes installation
Electric tank water heater (40–50 gallon)	$800–$1,600	Lower unit cost; higher operating cost long-term
Gas tankless (on-demand) water heater	$2,000–$4,500	Higher upfront cost; lower monthly gas bill
Electric tankless water heater	$1,500–$3,500	May require electrical panel upgrade
Heat pump (hybrid) water heater	$1,200–$2,800	Most energy efficient; rebates often available
Water damage restoration after water heater failure	$1,200–$6,000	Separate cost for extraction, drying, and flooring repair

What Affects Replacement Cost

Unit type and capacity

Tank vs. tankless is the largest price variable. Within each category, capacity (40 vs. 80 gallon tank; 6 vs. 11 GPM tankless) affects both unit and installation cost.

Fuel type change

Switching from gas to electric or vice versa requires new connections — electrical panel upgrade ($500–$2,000) or gas line extension ($500–$1,500). Keeping the same fuel type keeps costs lower.

Venting requirements

Power vent and direct vent units can be installed in more locations but cost $200–$500 more to install. Atmospheric vent units are cheaper but require specific venting conditions.

Water damage from the failure

A failed water heater that leaks or floods adds $1,200–$6,000 in restoration costs. This is a separate expense from the replacement — and often the larger of the two.

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Water Heater Replacement Cost FAQs

: Water heater replacement costs $900–$4,500 depending on unit type. A standard 50-gallon gas tank water heater with installation costs $1,000–$1,800. Electric tank units: $800–$1,600. Tankless gas units (higher efficiency): $2,000–$4,500. Heat pump hybrid units: $1,200–$2,800 before rebates. Labor for a straightforward swap is typically $300–$600. Complex installs involving gas line or venting changes add $500–$1,500.
: Homeowners insurance does NOT cover the water heater replacement itself — that's a maintenance expense. However, if the water heater fails and floods part of your home, the resulting water damage restoration IS covered under most HO-3 policies (sudden and accidental water event). The insurance pays for: water extraction, structural drying, flooring and drywall repair. The new water heater itself is out-of-pocket unless you have a home warranty.
: Signs a water heater needs replacement: age over 10 years (tank units typically last 8–12 years), rust-colored hot water, rumbling or popping sounds during heating (sediment buildup), visible corrosion on the tank or fittings, water pooling around the base, inconsistent hot water. Tankless units last 15–20 years. Annual flushing and anode rod inspection can extend tank heater life by 2–5 years.
: Tank water heaters: lower upfront cost ($900–$1,800 installed), immediate hot water, simpler maintenance. Tankless: higher upfront cost ($2,000–$4,500 installed), endless hot water, 15–20 year lifespan vs. 8–12 for tanks, lower monthly gas/electric bills. For most families who stay in a home 5+ years, the higher efficiency of tankless pays back within 6–10 years in energy savings. For homes where hot water usage is low or replacement budget is tight, a tank unit is the practical choice.
: A comprehensive home warranty (like Choice Home Warranty) typically covers: water heater repair due to mechanical failure, tank corrosion, thermostat failure, heating element failure, and in some plans, full replacement when repair isn't cost-effective. Most warranties pay $500–$1,500 toward water heater replacement. They do NOT cover: pre-existing conditions, installation modifications needed to meet current code, water damage resulting from the failure. Home warranties average $500–$800/year.
: Immediately: (1) Turn off the gas or electricity supply to the water heater; (2) Close the cold water supply valve at the top of the unit; (3) If flooding has spread beyond the immediate area, call for water damage extraction before the flooring or subfloor is compromised; (4) Document damage with photos for your insurance claim; (5) Do not run the water heater with a significant leak — it can worsen the failure and increase water damage. Call a plumber for the replacement and a restoration company if water spread beyond the water heater area.

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Water Heater Replacement Cost by Type

Water heater replacement cost ranges by type
Type	Cost Range	Notes
Gas tank water heater (40–50 gallon)	$900–$1,800	Most common replacement; includes installation
Electric tank water heater (40–50 gallon)	$800–$1,600	Lower unit cost; higher operating cost long-term
Gas tankless (on-demand) water heater	$2,000–$4,500	Higher upfront cost; lower monthly gas bill
Electric tankless water heater	$1,500–$3,500	May require electrical panel upgrade
Heat pump (hybrid) water heater	$1,200–$2,800	Most energy efficient; rebates often available
Water damage restoration after water heater failure	$1,200–$6,000	Separate cost for extraction, drying, and flooring repair

What Affects Replacement Cost

Unit type and capacity

Tank vs. tankless is the largest price variable. Within each category, capacity (40 vs. 80 gallon tank; 6 vs. 11 GPM tankless) affects both unit and installation cost.

Fuel type change

Switching from gas to electric or vice versa requires new connections — electrical panel upgrade ($500–$2,000) or gas line extension ($500–$1,500). Keeping the same fuel type keeps costs lower.

Venting requirements

Power vent and direct vent units can be installed in more locations but cost $200–$500 more to install. Atmospheric vent units are cheaper but require specific venting conditions.

Water damage from the failure

A failed water heater that leaks or floods adds $1,200–$6,000 in restoration costs. This is a separate expense from the replacement — and often the larger of the two.

Water Heater Replacement Cost FAQs

Water heater replacement costs $900–$4,500 depending on unit type. A standard 50-gallon gas tank water heater with installation costs $1,000–$1,800. Electric tank units: $800–$1,600. Tankless gas units (higher efficiency): $2,000–$4,500. Heat pump hybrid units: $1,200–$2,800 before rebates. Labor for a straightforward swap is typically $300–$600. Complex installs involving gas line or venting changes add $500–$1,500.

Homeowners insurance does NOT cover the water heater replacement itself — that's a maintenance expense. However, if the water heater fails and floods part of your home, the resulting water damage restoration IS covered under most HO-3 policies (sudden and accidental water event). The insurance pays for: water extraction, structural drying, flooring and drywall repair. The new water heater itself is out-of-pocket unless you have a home warranty.

Signs a water heater needs replacement: age over 10 years (tank units typically last 8–12 years), rust-colored hot water, rumbling or popping sounds during heating (sediment buildup), visible corrosion on the tank or fittings, water pooling around the base, inconsistent hot water. Tankless units last 15–20 years. Annual flushing and anode rod inspection can extend tank heater life by 2–5 years.

Tank water heaters: lower upfront cost ($900–$1,800 installed), immediate hot water, simpler maintenance. Tankless: higher upfront cost ($2,000–$4,500 installed), endless hot water, 15–20 year lifespan vs. 8–12 for tanks, lower monthly gas/electric bills. For most families who stay in a home 5+ years, the higher efficiency of tankless pays back within 6–10 years in energy savings. For homes where hot water usage is low or replacement budget is tight, a tank unit is the practical choice.

A comprehensive home warranty (like Choice Home Warranty) typically covers: water heater repair due to mechanical failure, tank corrosion, thermostat failure, heating element failure, and in some plans, full replacement when repair isn't cost-effective. Most warranties pay $500–$1,500 toward water heater replacement. They do NOT cover: pre-existing conditions, installation modifications needed to meet current code, water damage resulting from the failure. Home warranties average $500–$800/year.

Immediately: (1) Turn off the gas or electricity supply to the water heater; (2) Close the cold water supply valve at the top of the unit; (3) If flooding has spread beyond the immediate area, call for water damage extraction before the flooring or subfloor is compromised; (4) Document damage with photos for your insurance claim; (5) Do not run the water heater with a significant leak — it can worsen the failure and increase water damage. Call a plumber for the replacement and a restoration company if water spread beyond the water heater area.