How much does water heater replacement cost?
Replacing a traditional tank water heater typically runs a representative $1,500–$3,500 installed, while a tankless (on-demand) unit typically runs about $3,500–$8,000 because of the unit cost and possible gas, venting, or electrical upgrades. Your real price depends on the type, fuel, and any required upgrades — an on-site estimate confirms it.
These are representative ranges to help you plan — not a quote. Your actual price depends on your home, equipment, and scope, and can fall outside these ranges. The only way to know your real cost is a free on-site estimate.
Typical water heater replacement ranges
Representative installed ranges to help you plan. Your estimate depends on your home — the factors below explain what moves it.
Like-for-like swap; 8–12 year lifespan.
Endless hot water, 20+ year life; may need gas/venting/electrical upgrades.
What affects your water heater replacement price
Tank vs. tankless
Tankless units cost more upfront and may require gas line, venting, or electrical upgrades, but last far longer. Tanks are cheaper today with a shorter lifespan.
Capacity & fuel
Larger capacity and switching fuel types (gas vs. electric, or to a heat-pump water heater) change equipment and install cost.
Code upgrades
Modern installs may require expansion tanks, seismic strapping, updated venting, or a drain pan to meet California code.
Hard water provisions
In hard-water areas, adding a softener or planning for descaling protects the new unit's lifespan.
What's typically included
- New water heater sized to your household
- Installation, connections, and code-required safety provisions
- Removal and disposal of the old unit
- Permits where required
- Testing and walkthrough
Often quoted separately
- Water softener or whole-home filtration (quoted separately)
- Major gas line or electrical service upgrades for tankless conversions
Spread the cost over time
Qualified homeowners can finance this project through our lending partner — including 0% interest plans (typically 6–18 months) and low-interest extended terms up to 60 months. Approval, rate, and term depend on credit and the lender; we'll walk you through the options on your estimate.
View financing options →Rebates & incentives
Heat-pump water heaters (a high-efficiency electric option) may qualify for California electrification incentives. Programs change and amounts aren't guaranteed — we help eligible homeowners find and file what applies. See our Rebates & Incentives guide.
Explore rebates & incentives →Frequently asked questions
How much does it cost to replace a water heater?
A traditional tank replacement is typically about $1,500–$3,500 installed; a tankless unit is typically about $3,500–$8,000 because of higher equipment cost and possible upgrades. Your exact price requires an on-site estimate.
Is tankless worth the extra cost?
It can be, for endless hot water and a 20+ year lifespan, if you plan to stay in the home. For a tighter budget or shorter stay, a tank may be smarter. Our tankless vs. tank comparison breaks it down.
Before you decide
Honest guides to help you choose well — not just what it costs, but whether it's the right call for your home.
Get your free water heater replacement estimate
No pressure, no surprises — a clear, upfront price for your home before any work begins. Already have a quote? Get a free 2nd opinion.