Water Heater Replacement in Puyallup
Replacing a standard 40 to 50 gallon tank water heater costs $600 to $3,100 installed. Tankless units run $1,400 to $5,600 and heat pump water heaters $2,000 to $4,600. Tank heaters last 8 to 12 years.
A water heater gives you about a decade of quiet service and then one bad morning. If yours is past ten years old, replacing it on your schedule is cheaper and calmer than replacing it after it floods the garage.
What replacement costs
Water heater installed cost by type
Standard tank, 40 to 50 gallon: $600 to $3,100
Tankless: $1,400 to $5,600
Heat pump, hybrid: $2,000 to $4,600
Source: HomeGuide water heater installation cost guide, national figures, January 2026.
| Tank size | Installed cost |
|---|---|
| 40 gallon | $600 to $3,000 |
| 50 gallon | $700 to $3,100 |
| 65 gallon | $900 to $3,400 |
| 75 gallon | $1,100 to $3,600 |
Add $50 to $200 for permit fees and $100 to $400 if an expansion tank is needed. Converting from a tank to tankless costs more than a like-for-like swap because of gas line, venting, or electrical changes.
How long they last
| Type | Typical life |
|---|---|
| Tank | 8 to 12 years |
| Tankless | 15 to 20 years |
To find your heater's age, look at the manufacturer's label. The serial number usually contains the build date.
Signs it is near the end
- Rust-colored hot water
- Rumbling or popping when it heats
- Moisture or rust at the base of the tank
- Hot water that runs out faster than it used to
- Age past 10 years
Water at the base is the urgent one. A tank that has started to leak will not heal.
Which type to choose
| Standard tank | Tankless | Heat pump | |
|---|---|---|---|
| Upfront cost | Lowest | Higher | Higher |
| Operating cost | Highest | Lower | Lowest |
| Hot water supply | Limited by tank size | Continuous | Limited by tank size |
| Space | Needs floor space | Wall-mounted | Needs floor space and air around it |
| Best fit | Budget swap | Large households, long ownership | Garage installs, long ownership |
HomeGuide puts annual operating cost at $160 to $190 for a heat pump water heater compared with $530 to $600 for a standard electric tank. A garage is a good spot for one in our climate.
Rebates
Puget Sound Energy lists a heat pump water heater rebate for existing single-family homes, with higher amounts for income-qualified customers. Check the current amount before you buy.
The federal tax credit that used to apply is no longer available for new installations. The IRS says it covered property placed in service through the end of 2025.
Permits and code items
Replacing a water heater is not exempt work. Pierce County's Work Exempt from Building Permit guide says that when a defective plumbing element has to be replaced, a permit and inspection are required. A plumbing permit comes from the city or county. Electrical work is permitted through the state Department of Labor and Industries in most of the county.
Installers and inspectors here look for a few specific things:
- Earthquake straps. The tank should be strapped to the wall framing.
- Relief valve discharge pipe. The pipe from the temperature and pressure relief valve should run down toward the floor or to the exterior, not end open at the top of the tank.
- Expansion tank. Often required on a closed water system.
- Elevation and protection in a garage. Gas units need the burner raised off the floor and protected from vehicles.
- Venting. Gas units need a proper, intact flue.
Missing straps and a missing discharge pipe are two of the most common notes on home inspection reports. Both are cheap to correct.
Hiring it out
- Get two or three quotes for the same type and size.
- Ask whether the price includes the permit, haul-away, straps, and any code upgrades.
- Look the company up in the state's Verify a Contractor tool.
- Ask about the warranty on the tank and on the labor.
Before you sell
A water heater in its last years will be written up by a buyer's inspector. You do not always need to replace it. At a minimum, make sure it is strapped, the discharge pipe is in place, and there is no leaking. If it is 15 years old and rusting at the base, replace it. The cost is small next to the credit a nervous buyer will ask for.
Frequently asked questions
How much does it cost to replace a water heater in Puyallup?
National guides put a standard 40 to 50 gallon tank at $600 to $3,100 installed, tankless at $1,400 to $5,600, and heat pump models at $2,000 to $4,600.
How long does a water heater last?
Tank water heaters typically last 8 to 12 years. Tankless units last 15 to 20 years.
Do I need a permit to replace a water heater in Washington?
Generally yes. Replacement requires a plumbing permit and inspection, and electrical work requires an electrical permit.
Are there rebates for water heaters?
Puget Sound Energy lists a rebate for heat pump water heaters in existing single-family homes. The federal tax credit ended for installations after 2025.
Related reading
- Hiring a Plumber in Puyallup: Rates and What to Check
- Heat Pump Installation Cost in Puyallup
- Furnace Repair in Puyallup: Costs and Repair or Replace
- What Repairs Should I Make Before Selling My House?
Getting a home ready for inspection? Reach out.
The water heater is on every inspector's checklist. If you want to know what else they will look at in your Puyallup home, call, text, or email me.
Austin Robertson
Real Estate Broker, Robertson & Co.
253.225.2395 | austin@robertsonand.co
For people building something worth keeping.
Equal Housing Opportunity. Austin Robertson, License # 21036843, Austin Robertson and Allena Robertson Real Estate Brokers, regulated by the Washington State Department of Licensing (DOL). This article is general information only. It is not legal, tax, insurance, lending, or construction advice, and it is not an appraisal of any property. Costs, rates, and rules change. Confirm the details with the sources linked above before you act.
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