Losing hot water throws off your whole day, and a surprise bill makes it worse. Knowing the cost to replace a water heater ahead of time can take the stress out of the decision.
This guide gives you a realistic budget range, explains what changes the price, and helps you decide whether to repair or replace. At ARS®/Rescue Rooter®, our water heater replacement services start with an upfront written estimate before any work begins.
Need hot water back soon? Call Today at 866-399-2885. Our trusted team is available seven days a week.
How Much Does Water Heater Replacement Cost?
According to Angi's 2026 cost data, water heater replacement costs range from $882 to $1,826, with the average cost being $1,348. Your final price depends on the unit type, fuel, size, and how much work the job takes.
That's Angi's replacement cost range, which typically covers the unit and labor. Permits, haul-away of the old heater, venting, and gas or electrical work can add to the total. Angi notes that labor is usually around 50% of your total.
Prices also vary by market, so your local quote may land higher or lower. Per Angi, your total depends on whether you're doing a simple one-for-one swap or an upgrade, and same-type swaps generally cost less than upgrades. A one-for-one swap means the same type, size, and fuel in the same spot, while an upgrade might mean moving from tank to tankless.
Water Heater Replacement Price Factors
Several factors shape your water heater replacement cost. The table below shows the biggest drivers at a glance, and the sections after it explain each one.
Factor | What it means | Typical cost impact |
|---|---|---|
Unit type | Tank models store hot water; tankless models heat it on demand | Tank: $600–$2,500; tankless: $1,400–$3,900 (Angi) |
Fuel type | Gas, electric, or heat pump | Gas needs a vent and gas supply; heat pump units often cost more up front |
Tank size | How many gallons the tank holds | Larger tanks generally cost more |
Labor | Removing the old unit and installing the new one | Around 50% of the total (Angi) |
Permits | Local approval for the work | $25–$300 (Angi); requirements vary by location |
Venting | A safe exhaust path for gas units | Adds cost if vents need changes |
Gas line or electrical work | A new gas line (for gas models) or electrical upgrades | Adds cost when you switch fuel or unit type |
Expansion tank and code upgrades | Parts some local codes call for | Requirements vary by location |
Location and access | Where the heater sits, like an attic, closet, or basement | Tight spaces may add labor time |
Haul-away | Removing and disposing of the old unit | Ask whether your quote includes it |
Timing | Emergency or scheduled replacement | Planned jobs give you time to compare options |
Tank vs. Tankless Water Heater Costs
A tank water heater stores and heats a set amount of water. According to Angi, tank models hold anywhere from 20 to 100 gallons. A tankless water heater has no storage tank. It heats water on demand as it flows through the unit.
Angi puts tank models at $600 to $2,500, depending on tank size, and tankless models at $1,400 to $3,900. Per Angi, a tank-to-tankless switch can add new venting, plumbing, or carpentry if the location changes, plus a new gas line (for gas models).
Angi also notes that electric tankless models may need a service upgrade to 200 amps or more. Our tankless water heater installation team can tell you what your home needs before you commit.
The trade-off is efficiency. According to Angi tankless pros and cons, tankless models can be as much as 8%–34% more efficient than tank models, citing the Department of Energy. Your gain depends on how much hot water your household uses.
This is an efficiency figure, so your bill impact may vary.
Gas, Electric, and Heat Pump Models
Gas water heaters need a gas supply and a vent that carries exhaust safely outside. Electric models don't need a vent, though some may need electrical upgrades. Your installer can confirm what your home needs.
A heat pump water heater pulls heat from the surrounding air to warm your water. Angi's main water heater cost guide lists hybrid heat pump water heaters at about $1,200 to $3,500.
Angi's heat pump installation guide puts professional installation at $3,200 to $4,700. Since these ranges differ, get a written quote that covers the unit and the labor.
ENERGY STAR also publishes heat pump water heater savings estimates by household size. Certified models may save a household of four approximately $550 per year on electric bills compared with a standard electric water heater.
Smaller households, and homes switching from gas, may see different results.
Tank Size and Household Needs
The right tank size depends on how many people use hot water. Angi's sizing guide offers a general starting point:
One or two people: A 30-gallon tank may fit.
One to four people: A 40-gallon tank may fit.
Three to five people: A 50-gallon tank may fit.
Four to six people: A 75-gallon tank may fit.
Large households with high-demand appliances: An 80-gallon tank may fit.
A bigger tank costs more up front. Oversizing also means you pay to heat water you don't use, which may raise operating costs.
Tankless units are sized by flow rate instead. Flow rate is measured in gallons per minute (GPM), meaning how much hot water the unit can deliver at once.
Labor, Permits, and Code Upgrades
Since labor makes up about half the bill, the job's complexity matters. A straight swap takes fewer labor hours than a conversion.
Labor covers skilled work with water lines, gas or electrical connections, and venting. That's why plumbers charge what they do: you're paying for safe, code-ready work.
Angi reports that permits typically cost $25 to $300. Permit and code requirements vary by location, so your installer should confirm them for your city and state.
Common code items include an expansion tank, a small tank that absorbs extra pressure as heated water expands. Your area may also call for other local code items, so ask your installer what applies.
Hidden Costs to Plan For
Some costs don't show up until the old heater comes out. Plan for these when you set your water heater replacement cost budget.
Gas line changes: Angi notes that switching fuels may require a new gas line, which our gas line repair service handles.
Electrical upgrades: Angi notes that an electric tankless unit may need an electrical panel upgrade.
Relocation: Moving the heater to a new spot adds plumbing, venting, and labor.
Haul-away and disposal: Removing the old tank takes labor and may carry a disposal fee.
Emergency timing: A sudden failure leaves you less time to compare options and quotes.
Water damage: A leaking tank can damage floors, walls, and stored items, adding costs beyond the heater.
If your tank is leaking right now, take these steps to limit damage first:
Shut off the water: Turn the cold water valve above the tank clockwise until it stops.
Cut the power or gas: Flip the breaker for an electric unit, or turn a gas unit's control knob to "off."
Protect your belongings: Move items away and soak up standing water with towels or a wet vac.
Let it cool: Stored water can be scalding, so avoid touching drain valves or fittings.
If you smell gas, leave your home and call your gas utility from outside. Once the leak is contained, our emergency plumbing services team is available seven days a week.
Repair or Replace Your Water Heater?
As a general recommendation, plan for water heater replacement every seven to eight years. That timeline varies with usage, climate, maintenance history, and installation quality.
Use the table below to see which side your heater falls on.
Repair If | Replace If |
|---|---|
Your unit is newer than the guideline of every seven to eight years | Your unit is near or past the guideline of every seven to eight years |
One part failed, like a thermostat, heating element, or thermocouple | The tank itself is leaking |
The tank shows no leaks | Your hot water looks rusty or discolored |
Repairs have been rare | You've needed repeated repairs |
Your energy bills look normal | Your energy bills keep rising |
A heating element is the metal rod that warms water in an electric unit. A thermocouple is a safety sensor that tells a gas valve the pilot light is lit.
Regular preventative plumbing maintenance may help your heater last longer and catch small problems early.
Signs It's Time to Replace
You can check for most warning signs at home in a few minutes:
Water at the base: Pooling water or dampness under the tank often points to an internal leak.
Rusty hot water: Discolored water from hot taps only may signal rust inside the tank.
Rumbling or popping: Sediment, the minerals that settle at the bottom, can harden and make noise as the tank heats.
Shorter hot showers: Running out of hot water faster may mean sediment buildup or a failing part.
Unit age: If your heater is seven to eight years old, consider having a professional inspect it.
How to Save on Water Heater Replacement
According to University of Maryland Extension guidance, water heating typically accounts for up to 20 percent of a home's total energy use. So the unit you choose may affect your bills for years.
These steps may help lower your water heater replacement cost:
Replace before failure: Planning ahead may help you avoid emergency timing and water damage.
Right-size the unit: A tank matched to your household may help keep purchase and operating costs down.
Compare installed quotes: Line up total prices that include labor, parts, permits, and haul-away.
Check local rebates: Some states and utilities offer rebates for efficient models, so ask before you buy.
Spread out payments: Monthly payments can make a sudden replacement easier to manage.
Many older articles still mention a federal tax credit for efficient water heaters. That credit, known as 25C, has ended. According to IRS guidance on the credit, the credit will not be allowed for any property placed in service after December 31, 2025.
"Placed in service" means installed and ready to use. If budget is tight, ARS offers flexible financing options with monthly payments.
What a Water Heater Replacement Quote Should Include
A clear quote helps you compare offers fairly. Before you sign, check that it covers each of these:
Unit details: The make, model, size, and fuel type of the new heater.
Labor: The cost to remove the old unit and install the new one.
Parts: Valves, connectors, and an expansion tank if your area calls for one.
Permit: Whether the permit fee is included in the price.
Code upgrades: Any venting changes or other local code items your location requires.
Haul-away: Removal and disposal of the old heater.
Warranty: Coverage terms for both the unit and the labor.
Timeline: A straight swap usually takes less time than a conversion, and your installer can confirm the schedule.
Always ask for a written estimate before work begins. ARS provides upfront written estimates, and our work is backed by our Exceptional Service Guarantee. If you're unsatisfied within one year of your original invoice, we'll do whatever we can to make it right.
When to Call a Professional
Call a professional if you notice any of these:
Active leaks: Water pooling around the tank or dripping from fittings.
Gas smell: A rotten-egg odor near the heater, so leave home first and call your gas utility.
No hot water: Cold taps even after you check the breaker or pilot light.
Scorch marks: Burn marks or soot near the burner or vent.
Our trusted, background-checked team gives you upfront pricing before work begins, and we're available seven days a week. Call 866-399-2885 or Schedule Service Online.
