Local guides / Washington

WATER HEATER REPLACEMENT IN RENTON

Renton Water Heater
Replacement

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RENTON AT A GLANCE

Replacing a water heater in Renton.

Renton issues its own plumbing, mechanical and electrical permits online, over the counter. A residential plumbing permit costs $69 plus $12 for each fixture in 2026, plus a 5% technology surcharge. Water hardness ranges from 48 to 125 ppm, depending on which well or spring supplies your home.

Two-story brick commercial buildings at a street corner in downtown Renton, Washington
Street corner in downtown Renton · Photo: Steven Pavlov ↗ · CC BY-SA 4.0 ↗
Permit to replace with the same type
Yes · City of Renton Permit Services (Community & Economic Development)
Permit fee
Residential plumbing permit: $69 base fee plus $12 for each fixture (2026 column of the 2025-2026 fee schedule, rev. March 2026), plus a 5% technology surcharge. Water heaters don't have their own line on the schedule.
Who gets the permit
Once the permits are issued, an owner can do the work on their own property. The exception is electrical work: homeowners can do it only if they've lived in the house at least three years. Plumbers you hire must be L&I-registered contractors.
Electric utility
Puget Sound Energy and Seattle City Light
Gas utility
Puget Sound Energy
Water
City of Renton Water Utility (wells and Springbrook Springs, with Seattle Public Utilities water as a backup and for the Boeing plant) · Depends on the source: 48 ppm at the downtown wells (slightly hard), 69 ppm at Maplewood (moderately hard) and 125 ppm at Springbrook Springs (hard), from the most recent testing reported in the 2026 Water Quality Report
Rebate worth checking
PSE heat pump water heater rebate (Active)
Typical home
Built 1988 (median) · 54% owner-occupied
Companies found
13 that advertise water heater work

01 / TYPICAL PRICES

What a new water heater costs.
Know before you call.

Gas or electric tank

Storage tank

Conventional electric storage water heater illustration
$1,600–$2,400Typical cost, including installation
Hybrid electric storage

Heat-pump tank

Hybrid heat-pump water heater with upper air grille illustration
$2,500–$5,000Typical cost, including installation
Gas or electric tankless

Tankless

Compact gas tankless water heater illustration
$2,400–$5,400Typical cost, including installation

AI equipment illustrations; models vary and images are not to scale. Typical national prices from Home Depot ↗, checked September 28, 2026. The source doesn’t say how many jobs the ranges are based on. These are not Renton averages or guaranteed quotes.

Compare what each quote includes.Equipment · Labor · Permits · Old heater removalHow to compare quotes →

What we know about prices in Renton

How we label prices →

Yearly running cost at Washington energy prices

$296 gas storage tank$204 gas tankless$512 electric storage tank$135 heat-pump tank

Estimated yearly energy cost for medium hot water use, based on Department of Energy test conditions. How we calculated this.

What can change the price in Renton?

Fuel gas piping adds $28 for each system (up to 6 outlets) on a residential plumbing or mechanical permit. Renton issues its own electrical permits for any new circuit.

What affects installation cost →

02 / COMPANIES WE FOUND

Who replaces water heaters in Renton?

Companies that advertise water heater replacement here, with what their water heater customers say.

Companies we found in our research. They are not Ember & Tank providers or partners. We show selected reviews, not a rating or every review. How we choose reviews →

Beacon Plumbing, Heating & Electric

Lists Renton among the areas it serves. Based in Seattle.

  • Tank
  • Tankless
  • Repair
  • Emergency service

What the reviews say

Water heater feedback Yelp reviewers praised quick response, same-day or next-day water heater replacement, and a technician willing to repair an 11-year-old tankless unit.

Worth knowing BBB complainants disputed a water heater replacement price paid under emergency conditions and a $2,000 deposit largely kept after a verbally cancelled water heater job (Beacon said its contract terms, including written cancellation, were clearly stated), and a Yelp reviewer called $5,700 for a 50-gallon gas tank double what he expected.

5 water heater reviews read, checked September 30, 2026.

Bee's Plumbing & Heating

Lists Renton among the areas it serves. Based in Seattle.

  • Tank
  • Tankless
  • Repair
  • Emergency service

Published price: Coupon: '$500-$800 OFF Water Heater Installation' ($500 off tank, $800 off tankless; not valid on dispatch fee; expires 9/30/2026). No base installed prices published.

What the reviews say

Water heater feedback Reviewers praised same-day response, clear explanation of options and quick tank and tankless installs.

Worth knowing Reviewers on BBB and Yelp said water heater prices were far above other quotes or not itemized (the company said on BBB it later sent an itemized invoice and wanted to make it right).

5 water heater reviews read, checked September 30, 2026.

Brennan Heating & Air Conditioning

Lists Renton among the areas it serves. Based in Seattle.

  • Tank
  • Tankless
  • Heat pump
  • Repair
  • Emergency service

What the reviews say

Water heater feedback No water heater-specific praise was found in the sources checked.

Worth knowing A BBB complainant said a gas tank was installed facing the wrong way, blocking access to controls (Brennan apologized and scheduled a return visit to rotate it), and Yelp reviewers described a delayed Costco-sourced install and a later diagnosis they disputed.

3 water heater reviews read, checked September 30, 2026.

Fast Water Heater Co. (Washington)

Lists Renton among the areas it serves. Based in Woodinville.

  • Tank
  • Tankless
  • Heat pump
  • Repair
  • Emergency service

What the reviews say

Water heater feedback Reviewers praised punctual, communicative technicians, quick scheduling and a competitively priced replacement.

Worth knowing BBB complainants and a Yelp reviewer said code items were sold as add-ons after a basic quote and that installs failed inspection or permits lingered; the company says it walks customers through a signed code checklist, and in several cases refunded charges or did the code work free.

5 water heater reviews read, checked September 30, 2026.

Fischer Plumbing

Lists Renton among the areas it serves. Based in Mountlake Terrace.

  • Tank
  • Tankless
  • Heat pump
  • Repair
  • Emergency service

What the reviews say

Water heater feedback Reviewers praised easy scheduling, same-day replacement and prices they described as fair.

Worth knowing A BBB complainant said a 2021 water heater install never kept water hot and tripped the breaker (Fischer said it provides a 1-year parts and labor warranty and cannot be responsible for home electrical; it refunded a service call fee), and a 2009 Yelp reviewer said the installer tried to raise a $900 quote to over $1,500.

4 water heater reviews read, checked September 30, 2026.

Goldstar Plumbing

Lists Renton among the areas it serves. Based in Seattle.

  • Tank
  • Tankless
  • Heat pump
  • Repair
  • Emergency service

What the reviews say

Water heater feedback Testimonials praised heat pump water heater installs with clear options, permit and inspection handling, cleanup and haul-away.

Worth knowing No water heater complaints found in the sources checked.

2 water heater reviews read, checked September 30, 2026.

Green Planet Plumbing & Sewer

Lists Renton among the areas it serves. Based in Seattle.

  • Tank
  • Tankless
  • Heat pump
  • Repair
  • Emergency service

What the reviews say

Water heater feedback A customer praised a next-day estimate, quick scheduling and pleasant technicians for a hot water tank replacement.

Worth knowing No water heater complaints found in the sources checked.

1 water heater review read, checked September 30, 2026.

Harts Plumbers, Electricians, & HVAC Technicians

Lists Renton among the areas it serves. Based in Tacoma.

  • Tank
  • Tankless
  • Heat pump
  • Repair
  • Emergency service

Published price: Promos (no base price): $100 off a standard water heater (or $39/month financing); $250 off a tankless water heater (or $199/month financing); 5% Heroes Discount up to $200.

What the reviews say

Water heater feedback Yelp reviewers praised technicians who flushed water heaters and explained maintenance clearly.

Worth knowing BBB reviewers and complainants said technicians recommended whole-house repipes or new tanks for water heater problems that other plumbers fixed cheaply (Harts denied any fraudulent practice and offered manager follow-up), and one disputed $2,500 for a tankless flush and diagnosis that did not fix the issue.

5 water heater reviews read, checked September 30, 2026.

Hunt's Services

Lists Renton among the areas it serves. Based in Milton.

  • Tank
  • Tankless
  • Heat pump
  • Repair
  • Emergency service

What the reviews say

Water heater feedback Reviewers praised same-day emergency water heater replacements and a technician who also corrected code issues at a reasonable price.

Worth knowing BBB reviewers said a tankless flush ended in a paid replacement without the promised phone controller (Hunt's said a controller is typically an optional upgrade) and that a $10,000 boiler hot water tank replacement left them without hot water.

5 water heater reviews read, checked September 30, 2026.

Puget Sound Plumbing & Heating

Lists Renton among the areas it serves. Based in Burien.

  • Tank
  • Tankless
  • Heat pump
  • Repair
  • Emergency service

What the reviews say

Water heater feedback Reviewers praised fast response to a leaking water heater, fair pricing and dispatch updates on arrival times.

Worth knowing No water heater complaints found in the sources checked.

3 water heater reviews read, checked September 30, 2026.

Also listing Renton: Ben's Plumbing, Heating & Air, Convenient Water Heaters & Plumbing, Home Comfort Alliance.

Order: companies based in Renton first, then companies whose water heater reviews we’ve read. Each group is alphabetical. These businesses are not our employees or vetted partners and do not receive requests from Ember & Tank. We haven’t checked their license, insurance or quality of work. L&I Verify a Contractor, Tradesperson or Business ↗.

HOMES IN RENTON

What Renton homes are like.

1988Median year built
39%Built before 1980
54%Owner-occupied
41%Heat with utility gas
58%Single-family homes

The median home was built in 1988. A first or second replacement is common in homes this age.

56% of homes heat with electricity, which usually means an electric water heater. It’s worth getting a price on a heat pump model too.

U.S. Census Bureau, American Community Survey ACS 2024 5-year ↗ (2020-2024). Heating fuel is what homes use to heat the house. It often, but not always, matches the water heater’s fuel.

LOCAL CONDITIONS

What’s different in Renton.

Hardness depends on your water source

Renton uses several water sources, and hardness runs from slightly hard to hard depending on which one reaches your home. The City notes hard water can cause scale in water heaters, and the utility can tell you which source serves you.

Renton Water Quality Report ↗

Three-year rule for doing your own electrical

Renton lets homeowners do their own electrical work only after living in the house at least three years. That matters if a heat pump or electric tankless heater needs a new circuit.

Renton Building Permits FAQ ↗

ENERGY & WATER

Who supplies Renton homes.

Energy

  • Electric: Puget Sound Energy (Serves most of Renton)
  • Electric: Seattle City Light (Serves part of Renton under its franchise for the suburbs)
  • Gas: Puget Sound Energy

PSE locations and service area (King County: electric and gas, not Seattle) ↗ · Seattle City Light: franchise cities include Renton ↗

Water

City of Renton Water Utility (wells and Springbrook Springs, with Seattle Public Utilities water as a backup and for the Boeing plant): Depends on the source: 48 ppm at the downtown wells (slightly hard), 69 ppm at Maplewood (moderately hard) and 125 ppm at Springbrook Springs (hard), from the most recent testing reported in the 2026 Water Quality Report

Renton Water Quality Report ↗

REBATES & CREDITS

Rebates for Renton homes.

For Puget Sound Energy and Seattle City Light customers in Renton. Ask installers for the price before rebates, then check with the program that you qualify.

Checked September 30, 2026. Who qualifies and the conditions: Washington rebates · How to check an incentive.

PERMITS & LICENSING

Permits and licenses in Renton.

Permits and who issues them

Renton code requires a permit to install, change, repair or replace any regulated gas, mechanical, plumbing or electrical system (RMC 4-5-060E.1), with some listed exemptions. Plumbing, mechanical and electrical permits are simple over-the-counter permits; apply online on the Civic Access Self-Service Portal.

City of Renton Permit Services (Community & Economic Development) ↗ · Renton Building Permits FAQ ↗ · City of Renton Fee Schedule 2025-2026 (rev. March 2026) ↗ · L&I: Renton issues its own electrical permits ↗

Check the installer’s license

Ask for the license number and search it yourself on the L&I Verify a Contractor, Tradesperson or Business ↗. A listing on Ember & Tank is not a license check. Washington licensing explained →

NEARBY CITIES

Compare places near Renton.

Permit and utility comparison for nearby cities
CityDistancePermit to replaceFeeElectric
Tukwila4 miRequired$37.81Seattle City Light, Puget Sound Energy
Newcastle4 miRequired$80Puget Sound Energy
SeaTac5 miRequired$110Seattle City Light, Puget Sound Energy
Mercer Island6 miRequired$120Puget Sound Energy
Kent6 miRequired—Puget Sound Energy
Burien7 miRequired$98Seattle City Light, Puget Sound Energy

COMMON QUESTIONS

Renton water heater questions.

Do I need a permit to replace a water heater in Renton?

Yes. Renton code requires a permit to replace any regulated plumbing, gas or mechanical system. Plumbing permits are issued over the counter on the online portal.

Renton Building Permits FAQ ↗

What does a Renton plumbing permit cost?

For a house in 2026: $69 base plus $12 for each fixture, plus a 5% technology surcharge. Gas piping adds $28 for each system.

City of Renton Fee Schedule 2025-2026 ↗

Is Renton's water hard?

Depends on your source: 48 ppm downtown, 69 ppm at Maplewood and 125 ppm at Springbrook Springs.

Renton Water Quality Report ↗

More guides: Washington water heater replacement · All local guides