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WATER HEATER REPLACEMENT IN MAPLE VALLEY
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See what replacement costs ↓MAPLE VALLEY AT A GLANCE
Maple Valley charges a $125 plumbing base fee plus $10 for a water heater, vent and expansion tank in 2026, with a 12% technology fee on top. Electrical permits go to L&I. PSE supplies electricity and gas, and Covington Water District serves much of the city with Green River and well water.

01 / TYPICAL PRICES



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 Maple Valley averages or guaranteed quotes.
Gas piping is $20 for one to five outlets on a mechanical permit ($125 base). Electrical permits come from Washington L&I, as the city notes on its express solar permits.
02 / COMPANIES WE FOUND
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 →
Lists Maple Valley among the areas it serves. Based in Seattle.
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.
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.
Lists Maple Valley among the areas it serves. Based in Seattle.
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.
Lists Maple Valley among the areas it serves. Based in Everett.
Water heater feedback Republished reviews praised same-day replacement, quotes that matched the final bill, and technicians who explained why tanks failed.
Worth knowing No water heater complaints found in the sources checked; accounts come from a company-curated page.
4 water heater reviews read, checked September 30, 2026.
Lists Maple Valley among the areas it serves. Based in Woodinville.
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.
Lists Maple Valley among the areas it serves. Based in Tacoma.
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.
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.
Lists Maple Valley among the areas it serves. Based in Milton.
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.
Lists Maple Valley among the areas it serves. Based in Burien.
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.
Lists Maple Valley among the areas it serves. Based in Sumner.
We haven’t found reviews that mention this company’s water heater work yet.
Order: companies based in Maple Valley 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 ↗.
FROM COMPANIES SERVING MAPLE VALLEY



HOMES IN MAPLE VALLEY
The median home was built in 2001. A first or second replacement is common in homes this age.
59% of homes heat with utility gas, so gas water heaters with existing venting are common here.
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
Maple Valley warns that not every Maple Valley mailing address is inside city limits. Homes in unincorporated King County get permits from King County instead (plumbing from Public Health – Seattle & King County).
Maple Valley Online Permitting ↗ · PHSKC applications and permits ↗
Maple Valley's plumbing fee counts the water heater, its vent and an expansion tank as one $10 item, so adding an expansion tank doesn't add a fee.
ENERGY & WATER
Covington Water District for much of the city (Green River Regional Water Supply System plus district wells); some areas may be served by other districts such as Cedar River Water & Sewer
Covington Water District About Us ↗ · Covington Water District 2025 Water Quality Report ↗
REBATES & CREDITS
For Puget Sound Energy customers in Maple Valley. 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
Maple Valley's plumbing fee table has one line for a water heater, vent and expansion tank. Residential plumbing and mechanical permits are available over the counter as Express permits on the city's online portal, the only way to apply. Request inspections by emailing communitydevelopment@maplevalleywa.gov.
City of Maple Valley Community Development (Development Services) ↗ · Maple Valley Online Permitting ↗ · Maple Valley 2026 Development Fee Schedule ↗ · Maple Valley Building and Land Use Applications ↗ · RCW 18.106.150 homeowner plumbing exemption ↗
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
| City | Distance | Permit to replace | Fee | Electric |
|---|---|---|---|---|
| Covington | 3 mi | Required | $63 | Puget Sound Energy |
| Kent | 8 mi | Required | — | Puget Sound Energy |
| Auburn | 9 mi | Required | $43 | Puget Sound Energy |
| Renton | 11 mi | Required | $69 | Puget Sound Energy, Seattle City Light |
| Enumclaw | 12 mi | Required | $35 | Puget Sound Energy |
| Issaquah | 12 mi | Required | $62.88 | Puget Sound Energy |
COMMON QUESTIONS
$125 base plus $10 for the water heater, vent and expansion tank, plus a 12% technology fee (2026 fee schedule).
Apply on the city's online permit portal (Express plumbing or mechanical permits cover simple home work). To book an inspection, email communitydevelopment@maplevalleywa.gov.
Some Maple Valley addresses are in unincorporated King County, which issues its own permits. The city suggests looking up your address on the King County Parcel Viewer.
More guides: Washington water heater replacement · All local guides