Last updated: July 7, 2026 · Prices reviewed quarterly
Replacing a water heater costs $882 to $1,825 for a standard tank and $1,400 to $3,900 for tankless in 2026, installed. The national typical band runs $1,200-$4,500 once venting, code upgrades and permits enter the picture.
Cost breakdown
| Type | Installed cost (2026) | Notes |
|---|---|---|
| Tank, 40–50 gal (gas or electric) | $882 – $1,825 | The straight swap most homes need |
| National typical band | $1,200 – $4,500 | Includes code upgrades where required |
| Tankless | $1,400 – $3,900 | Endless hot water, smaller footprint |
| Tankless + gas line / venting upgrades | up to $5,500+ | Retrofit surcharge on first conversion |
| Permits | $50 – $500 | Required in most cities — unpermitted work bites at resale |
Tank vs. tankless, honestly
Tanks are cheaper to buy and swap, and any plumber can service them; they last 8-12 years (to 15 maintained). Tankless costs about double upfront on first conversion, lasts 15-20+ years, saves 10-30% on water-heating energy, and never runs out of hot water — but hard water demands annual descaling, and undersized units disappoint. The break-even usually lands around year 8-10: staying long-term favors tankless; selling soon favors tank.
Signals your heater is dying (act before the flood)
Age 10+, rusty hot water, rumbling from sediment, moisture around the base. A failing tank does not just quit — it can dump 40-50 gallons and keep refilling. That turns a $1,400 planned swap into a $4,000 restoration event. Water heater replacements are the definition of “cheaper on your schedule than on the tank’s.”
Cutting the bill safely
Straight like-for-like swaps price lowest — changing fuel type or location adds plumbing/electrical. Buy the unit yourself only if your installer agrees (warranty labor terms differ). Skip “premium” anode/expansion upsells unless your water or code requires them — but never skip the expansion tank where code mandates it. Two quotes minimum; water heater pricing varies wildly between plumbing shops for identical units.
Official resources & free help
- Choosing efficient models: Energy.gov water heating · EnergyStar.gov
- Utility rebates (heat-pump water heaters especially): DSIRE database
- Leak already flooded something? Sudden failures are typically covered
- Permit rules: your city building department — search “[city] water heater permit”
FAQ
Can I replace it myself?
Electric like-for-like, maybe, if you are competent with plumbing and local code allows. Gas: leave combustion, venting and gas lines to licensed pros — the failure modes are lethal, and unpermitted gas work voids insurance.
Why did my quote double the unit price?
Labor, haul-away, code items (expansion tank, pan, seismic straps, venting) and permit. Itemize — some are negotiable, code items are not.
Heat-pump water heaters worth it?
They cut energy use 60-70% and rebates are common (check DSIRE). Upfront $1,800-$4,000 installed; they need space and tolerate garages/basements best.
Prices on this page are researched estimates compiled from the cited sources; your local costs will vary with market, access and scope. Always get multiple written quotes from licensed professionals before hiring.