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.
Quick answer
A replacement water heater runs $900–$1,800 installed for a 40–50 gallon gas tank, $800–$1,600 for electric, $2,000–$4,500 for gas tankless and $1,500–$3,500 for electric tankless. Where a tank has failed rather than simply aged, the heater is only half the question: insurance generally covers the water damage from a sudden tank failure but not the heater itself, and water that reached carpet, the bottom of drywall or a floor below is a separate drying job with its own cost. Rust trails and a stained platform tell an adjuster the leak was long-running, which is the version policies exclude. If the tank leaked onto carpet, drywall or a floor below, that is a separate drying question — (888) 840-6512, answered 24/7.
Press 1 for water damage or 2 for mold, then your 5-digit ZIP. The line goes quiet for about half a minute while it connects — that is normal, stay on. Have ready: the address with ZIP, when the water started, what is wet now, and whether you have opened an insurance claim.
Water Heater Replacement Cost by Type
| Type | Cost Range |
|---|---|
| Gas tank water heater (40–50 gallon) | $900–$1,800 |
| Electric tank water heater (40–50 gallon) | $800–$1,600 |
| Gas tankless (on-demand) water heater | $2,000–$4,500 |
| Electric tankless water heater | $1,500–$3,500 |
| Heat pump (hybrid) water heater | $1,200–$2,800 |
| Water damage restoration after water heater failure | $1,200–$6,000 |
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.
Talk to a water damage pro now
Answered 24/7 · Toll-free · answered 24/7 · no obligation
(888) 840-6512- Describe the damage & give your ZIP
- You're routed to the on-call local crew
- They quote — you decide, no obligation
Water Heater Replacement Cost FAQs
- 1Turn off the gas or electricity supply to the water heater
- 2Close the cold water supply valve at the top of the unit
- 3If flooding has spread beyond the immediate area, call for water damage extraction before the flooring or subfloor is compromised
- 4Document damage with photos for your insurance claim
- 5Do 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.
How much does it cost to replace a water heater?
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.
Does homeowners insurance cover water heater replacement?
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.
How do I know when my water heater needs replacement?
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 vs. tankless water heater — which is better?
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.
What does a home warranty cover for water heater failures?
A complete 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.
What should I do if my water heater is leaking?
Immediately:
Who do I call right now for water damage?
Call (888) 840-6512. The line is answered 24 hours a day, seven days a week, and connects you with an IICRC-certified water damage restoration company that serves your area. Describe what you can see — where the water is coming from, how long it has been there, and whether it smells — the more specific you are, the faster the right company is on the line.
If the source is a pipe or an appliance, shut the main water valve first. Have four things ready and the call goes quickly: the address, when the water started, what is wet now, and whether you have filed an insurance claim.
Still not sure which of these is your situation? (888) 840-6512 · toll-free · answered 24/7
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