Storage tank
$1,600–$2,400Typical cost, including installation
WATER HEATER REPLACEMENT IN ISSAQUAH
Issaquah Water Heater
Replacement
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See what replacement costs ↓ISSAQUAH AT A GLANCE
Replacing a water heater in Issaquah.
Issaquah charges a flat $62.88 plus a technology fee to replace a water heater with the same type (2026 schedules). Gas units go on a mechanical permit and electric units on a plumbing permit. L&I handles electrical permits. City well water tested between about 58 and 93 ppm hardness in 2025.
- Permit to replace with the same type
- Yes · City of Issaquah Community Planning & Development (Permit Center)
- Permit fee
- $62.88 to replace only a water heater with the same type (plumbing or mechanical), plus a separate technology fee (fee schedules updated January 1, 2026)
- Electric utility
- Puget Sound Energy
- Gas utility
- Puget Sound Energy
- Water
- City of Issaquah water utility (city wells plus Cedar and Tolt water through Cascade Water Alliance) · City wells measured 57.9 to 92.9 ppm as calcium carbonate in 2025 (2025 water quality results); no hardness is listed for the Cedar and Tolt supply
- Rebate worth checking
- PSE heat pump water heater rebate (Active)
- Typical home
- Built 2002 (median) · 57% owner-occupied
- Companies found
- 11 that advertise water heater work
01 / TYPICAL PRICES
What a new water heater costs.
Know before you call.
Heat-pump tank
$2,500–$5,000Typical cost, including installation
Tankless
$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 Issaquah averages or guaranteed quotes.
Compare what each quote includes.Equipment · Labor · Permits · Old heater removalHow to compare quotes →
What we know about prices in Issaquah
- National installer’s published rangeThe ranges above. Home Depot ↗
- Local permit fee$62.88 to replace only a water heater with the same type (plumbing or mechanical), plus a separate technology fee (fee schedules updated January 1, 2026). City of Issaquah Community Planning & Development (Permit Center) fee source ↗
- Local company’s advertised price2 of the companies listed for Issaquah post water heater prices or specials on their websites: Bee's Plumbing & Heating, Harts Plumbers, Electricians, & HVAC Technicians. Each offer has its own conditions.
- Measured local dataNot collected yet, so no Issaquah average is shown.
What can change the price in Issaquah?
For remodels, mechanical fees are $62.88 for each new appliance or for gas piping alone, with a $62.88 minimum and a $422.04 maximum. L&I permits and inspects electrical work, like a new circuit.
02 / COMPANIES WE FOUND
Who replaces water heaters in Issaquah?
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 →
Bee's Plumbing & Heating
Lists Issaquah 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 Issaquah 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.
Danika Plumbing & Electric
Lists Issaquah among the areas it serves. Based in Everett.
- Tank
- Tankless
- Heat pump
- Repair
- Emergency service
What the reviews say
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.
Fast Water Heater Co. (Washington)
Lists Issaquah 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 Issaquah 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 Issaquah 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.
Harts Plumbers, Electricians, & HVAC Technicians
Lists Issaquah 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 Issaquah 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 Issaquah 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.
Washington Energy Services
Lists Issaquah among the areas it serves. Based in Lynnwood.
- Tank
- Tankless
- Heat pump
- Repair
- Emergency service
What the reviews say
Water heater feedback Reviewers praised fast replacements, knowledgeable installers who explained options, and a recommendation to downsize that saved money.
Worth knowing A BBB complainant said a water heater was not installed to code and high water pressure caused a leak (the company said its records show a permitted, inspected install and the customer disputed which heater was involved), and Yelp reviewers objected to a pilot relight and an unproductive warranty visit.
5 water heater reviews read, checked September 30, 2026.
Also listing Issaquah: Home Comfort Alliance.
Order: companies based in Issaquah 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 ISSAQUAH
Photos of water heater jobs from these companies.
HOMES IN ISSAQUAH
What Issaquah homes are like.
2002Median year built
18%Built before 1980
57%Owner-occupied
46%Heat with utility gas
50%Single-family homes
The median home was built in 2002. A first or second replacement is common in homes this age.
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 Issaquah.
One flat fee for a same-type swap
Issaquah charges $62.88, plus a technology fee, to replace a water heater with the same type, whether it's on a plumbing permit (electric) or a mechanical permit (gas).
Contractors need a city business license
Contractors working in Issaquah need a City business license, even when L&I issues the permit and does the inspection.
PFAS is filtered out
The City says it now removes PFAS from its drinking water.
ENERGY & WATER
Who supplies Issaquah homes.
Energy
- Electric: Puget Sound Energy
- Gas: Puget Sound Energy
PSE locations and service area (King County: electric and gas, not Seattle) ↗
Water
City of Issaquah water utility (city wells plus Cedar and Tolt water through Cascade Water Alliance): City wells measured 57.9 to 92.9 ppm as calcium carbonate in 2025 (2025 water quality results); no hardness is listed for the Cedar and Tolt supply
Issaquah most recent Water Quality Report (2025 results, PDF) ↗ · Issaquah Water Quality ↗
REBATES & CREDITS
Rebates for Issaquah homes.
For Puget Sound Energy customers in Issaquah. Ask installers for the price before rebates, then check with the program that you qualify.
- PSE heat pump water heater rebate ↗Active$1,000 back on a qualifying Tier 3 or Tier 4 heat pump water heater installed on or after January 1, 2026.
- Washington HEAR (Home Electrification and Appliance Rebates) ↗ActiveState-run program covering heat pump water heaters, heat pumps, induction cooking and electrical upgrades for households at or below 150% of Area Median Income.
- IRA Home Energy Rebates (HARP appliance rebates and HOMES) ↗Not launchedThe federally funded appliance (HARP) and whole-house (HOMES) rebates for households up to 150% AMI had not launched statewide.
- Federal Energy Efficient Home Improvement Credit (25C) ↗EndedCovered improvements made through December 31, 2025.
Checked September 30, 2026. Who qualifies and the conditions: Washington rebates · How to check an incentive.
PERMITS & LICENSING
Permits and licenses in Issaquah.
Permits and who issues them
Issaquah has a flat fee for replacing a water heater with the same type. A gas water heater swap on its own is a mechanical permit; an electric one is a plumbing permit. If it's part of other work, the water heater counts as one more fixture. Electrical permits come from Washington L&I.
Every contractor working in city limits needs a City of Issaquah business license, even for work that L&I permits.
City of Issaquah Community Planning & Development (Permit Center) ↗ · Issaquah Mechanical Fee Schedule (updated 1/1/2026, PDF) ↗ · Issaquah Plumbing Fee Schedule (updated 2026-01-01, PDF) ↗ · Issaquah Construction Permit Fees ↗ · Issaquah 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 Issaquah.
| City | Distance | Permit to replace | Fee | Electric |
|---|---|---|---|---|
| Sammamish | 3 mi | Required | $134 | Puget Sound Energy |
| Newcastle | 6 mi | Required | $80 | Puget Sound Energy |
| Bellevue | 6 mi | Required | $50 | Puget Sound Energy |
| Renton | 8 mi | Required | $69 | Puget Sound Energy, Seattle City Light |
| Snoqualmie | 8 mi | Required | $48.29 | Puget Sound Energy |
| Mercer Island | 9 mi | Required | $120 | Puget Sound Energy |
COMMON QUESTIONS
Issaquah water heater questions.
How much is a water heater permit in Issaquah?
$62.88 to replace it with the same type, plus a separate technology fee, under the fee schedules updated January 1, 2026.
Who issues electrical permits in Issaquah?
Washington L&I. Contractors still need a City of Issaquah business license.
More guides: Washington water heater replacement · All local guides