If your water heater just started leaking, expect to pay $1,200 to $3,000 to replace a standard 40 to 50 gallon tank, and about $1,400 to $1,600 for a straight gas-for-gas or electric-for-electric swap. The single biggest variable is not the heater. It is how much of your existing setup, the venting, gas line, wiring and location, the plumber can reuse.
Many people find this page with a wet floor, so the first section is about stopping the damage. After that we get into prices, the extras that inflate quotes, and whether this is the moment to upgrade.
Leaking right now? Do these four things first
- Shut off the cold water supply at the valve on the pipe above the tank. Turn it clockwise.
- Cut the energy. Flip the breaker for an electric tank. On a gas tank, turn the gas control knob to off or pilot.
- Drain it if the leak is from the tank body. Attach a garden hose to the drain valve near the bottom and run it to a floor drain or outside. Open a hot tap upstairs so air can get in.
- Photograph the label and the leak. The model, capacity and age help the plumber quote by phone, and the photos help with any insurance claim for water damage.
Once the water is off, you are no longer in an emergency. That matters, because a next-day appointment usually costs less than a same-night call, and you get time to compare two or three quotes.
Replacement prices by type of heater
| What you are installing | Typical installed price | The catch |
|---|---|---|
| Electric tank, 40 to 50 gal | $1,000 to $2,000 | Cheapest to install, most expensive to run |
| Gas tank, 40 to 50 gal | $1,200 to $3,000 | Vent and gas connections add labor |
| Large tank, 75 to 80 gal | $2,000 to $4,000 | Heavy, and may not fit through older doorways |
| Hybrid heat pump, 50 gal | $2,000 to $4,600 | Needs space, airflow and a condensate drain |
| Tankless, converting from a tank | $3,500 to $6,500 | Gas line, venting or electrical upgrades are common |
Repair it or replace it?
A leak from the tank itself is the end of the road. Steel tanks cannot be patched. But plenty of no-hot-water calls are parts failures, and a heating element, thermostat, thermocouple or gas control valve often costs a few hundred dollars to replace.
A practical rule plumbers use: under 8 years old with a parts problem, repair it. Leaking from the tank or past 10 years, replace it. Between 8 and 10, lean toward replacement if you see rusty hot water, hear loud rumbling from sediment, or have already paid for one repair. Most tanks last 8 to 12 years, and hard water can cut that to 6 to 8.
The five lines that turn a $600 heater into a $2,000 bill
The heater is usually less than half of what you pay. When one quote is far below the others, it is almost always missing one of these:
1. Labor, $400 to $1,500. Plumbers bill roughly $50 an hour in lower-cost areas and up to $250 in major metros. A garage swap takes 2 to 4 hours. Attics, crawl spaces and basements with tight stairs take longer.
2. Expansion tank, $120 to $350. Many codes now require one on homes with a closed water system. If your old heater did not have one, expect it on the new quote.
3. Permit and inspection, $50 to $500. Most building departments require a permit. A plumber who offers to skip it is saving himself time, not you money, and an unpermitted install can complicate a home sale or insurance claim.
4. Venting or electrical work, $150 to $2,000. Newer gas models can need a different vent size or a liner. Moving to a hybrid may need a new 240-volt circuit. In parts of California, Colorado and Utah, ultra-low-NOx gas models are required, and seismic straps are standard in California.
5. Haul-away, $50 to $250. Often included, sometimes not. Get it in writing, along with the drain pan if your heater sits above finished space.
Identical jobs can differ by 30 to 50 percent between cities, so compare quotes from your area rather than national averages alone.
On the shelf this month
If you want to sanity-check the equipment line on a quote, here is what popular 50-gallon models sell for at retail. The A.O. Smith Signature 100 gas tank with a 12-year warranty is about $869 at Lowe’s. Rheem’s Performance Platinum ultra-low-NOx gas model has been seen on sale near $560 at Home Depot. A Rheem professional-line 38,000 BTU gas unit lists around $1,050 at Walmart. The A.O. Smith Signature 900 hybrid is about $1,950 at full price. Bradford White sells mainly through plumbers, so its price only shows up inside an installed quote.
Pay attention to warranty length more than the logo. Rheem’s 6, 9 and 12 year tiers differ mainly in the size of the anode rod, the part that sacrifices itself so the tank does not rust. On hard water, $100 to $200 extra for the longer warranty usually pays off.
Pick the size by your busiest morning
Bigger tanks cost more to buy and to heat, so do not upsize out of habit. Look for the first-hour rating on the yellow EnergyGuide label, which tells you how many gallons of hot water the heater delivers in its first hour of heavy use.
Example: a family of four whose worst half hour is two showers at about 2 gallons per minute for 10 minutes each, plus a dishwasher using about 6 gallons, needs roughly 46 gallons of hot water. A 50-gallon tank with a first-hour rating in the high 50s, such as A.O. Smith’s Signature 100 electric at 57, covers that with room to spare. A 75-gallon tank would add several hundred dollars for no daily benefit.
Is this the moment to upgrade?
If you have gas now, replacing it with gas in the same spot is almost always the cheapest install. The harder question is for electric homes, where a hybrid heat pump model can cut water heating costs sharply.
Hybrids pull heat from the surrounding air and are rated three to four times as efficient as a standard electric tank. A.O. Smith estimates its Signature 900 saves around $300 a year compared with a standard electric model. On a $1,000 to $1,500 price premium, that is a payback of roughly three to five years for a household that uses a lot of hot water.
One thing changed in 2026. The federal Section 25C tax credit, which covered 30 percent of a heat pump water heater up to $2,000, ended for equipment placed in service after December 31, 2025. Articles still promising that money back are out of date. State programs, utility rebates and, where launched, income-qualified federal electrification rebates are what remain, so check your utility’s rebate page before you buy.
Tankless is the other upgrade people consider mid-crisis. It rarely makes sense as an emergency decision because the gas line and venting often need rework. See our tankless water heater cost guide before committing.
Can you swap it yourself?
An experienced DIYer can replace an electric tank like-for-like and save $400 to $1,500, though a full 50-gallon tank is awkward and heavy, and most areas still want a permit. Gas is different. Bad venting and loose gas connections create carbon monoxide and fire risk, so hire a licensed plumber.
Six questions to ask on the phone
- Does the price include the permit, expansion tank, drain pan and haul-away?
- Which brand and model, and how long is the tank warranty?
- Will my venting, gas line or wiring need changes to meet current code?
- Is there an after-hours or weekend surcharge, and what is it?
- How long is your labor warranty?
- Can you install tomorrow at the standard rate instead of tonight?
Once the new heater is in, drain a few gallons from the bottom once a year to clear sediment. On hard water, a water softener helps the new tank reach the long end of its lifespan.
Frequently asked questions
Does homeowners insurance pay for a new water heater?
Usually not for the heater itself, because wear and age are excluded. Many policies do cover sudden water damage the leak caused to floors, walls and belongings, minus your deductible. Check your policy and document the damage before cleanup.
How long does a water heater replacement take?
A like-for-like swap typically takes 2 to 4 hours. Jobs with venting changes, a new circuit, a move to a new location, or a hard-to-reach attic or crawl space can take most of a day.
Can I get a new water heater the same day?
Often yes. Many plumbers stock common 40 and 50 gallon tanks, and big-box stores carry them. Expect higher rates for nights and weekends, so if the water is shut off and safe, next-day service usually costs less.
Is a 12-year warranty water heater worth it?
On hard water or if you plan to stay in the home, usually yes. The longer-warranty models typically have a larger anode rod that resists corrosion longer, and the price difference is often only $100 to $200.
Is there a tax credit for water heaters in 2027?
Not at the federal level. The Section 25C credit ended for equipment placed in service after December 31, 2025. State, utility and some income-qualified federal rebates may still apply.
Related cost guides
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How we priced this guide: retailer listings from Lowe’s, Home Depot and Walmart, manufacturer specifications and warranty terms, national installation cost data, and IRS guidance on the Section 25C credit. Prices are national estimates researched in October 2026 for 2027 planning; they vary by location and provider and may change. See our disclaimer.
