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Find Water heater repair or service pros in Mercer Island

Avatar for Drain Pro Plumbing Inc
Drain Pro Plumbing Inc
4.9(
574
)

Serving Mercer Island, WA and surrounding areas

Angi Approved

In business since 2009

Free estimates

Emergency services offered

"They came within a day and converted by old 3 knob setup to a more modern 1 knob setup which required cutting and reconfiguring pipes. The whole job was done in a half day and the shower/bath was repaired. Very nice plumber and front office team as well."
Water service
Split water meter
Water meter installation
Water heater installation
Broken p-trap and pop assembly

+18

Response time1 day
1 neighbors recently requested a quote
Recommended by96%of homeowners
Avatar for Stream Water Heaters
Stream Water Heaters
5.0(
34
)

Serving Mercer Island, WA and surrounding areas

Angi Approved

Super Service Award Winner

In business since 2021

Free estimates

Emergency services offered

"George and Thiago do honest, excellent work and are super friendly! They're based in Tukwila and offer free estimates and no trip charges to replace our old water heater in Bothell. I can't recommend them enough for high quality work at a reasonable price, thank you!"
New
New 3
New 2
New Setup 2
New setup

+8

Response time5 hrs
Response rate99%
22 neighbors recently requested a quote
Avatar for Stream Water Heaters
Stream Water Heaters
5.0(
33
)

Serving Mercer Island, WA and surrounding areas

Angi Approved

In business since 2021

Free estimates

Emergency services offered

"I couldn't be happier with the service I received. Replacing a water heater is never fun, but they made it seamless. They were incredibly responsive to my initial inquiry and kept me updated throughout the process. Professional, clean, and efficient. Highly recommend!"
A 20-Year-old gas WH.
A 20-Year-old gas WH.
Preventative Gas Repl.
Preventative Gas Repl.
Non-Condensing Tankless W

+1

Response time4 hrs
Response rate100%
1 neighbors recently requested a quote
Avatar for Harts Plumbers, Electricians, & HVAC Technicians
Harts Plumbers, Electricians, & HVAC Technicians
4.7(
865
)

Serving Mercer Island, WA and surrounding areas

Angi Approved

In business since 2013

Emergency services offered

Warranties offered

"Harts corrected the location of the crawlspace sump pump discharge line to the location in the foundation which I originally wanted it to be located. However, we did not hear the sump pump operate under the floor when first installed. When the Harts crew changed the location of the pump discharge line, we can now hear the pump very distinctly when it operates, under the floor. I am requesting that Harts come back and listen to see if it is normal for the sump pump to make this much noise."
Before the Extension
After Extension
46 neighbors recently requested a quote
Recommended by93%of homeowners
Avatar for Schmitty's Plumbing
Schmitty's Plumbing
4.8(
48
)

Serving Mercer Island, WA and surrounding areas

Angi Approved

In business since 2016

Free estimates

Emergency services offered

"Schmitty's Plumbing responded to my Angi's service request almost as soon as I submitted it, and they beat out three other Angi plumbing companies in terms of pricing and transparency. I hired Schmitty's to remove an old double bowl kitchen sink and faucet with a new single bowl sink and upgraded faucet. There was no upselling or attempts to convince us to replace our garbage disposal which two of the other plumbers recommended we do. We saw no reason to replace our disposal which functions well and is not that old. Partners Drake and Gage came out to our home as scheduled, and they got to work immediately working efficiently and thoroughly. We appreciated their no-nonsense, honest, prompt service, and very fair pricing. I chose Schmitty's based on the positive customer reviews, and would hire them again. I told them I would recommend them to all my friends who have plumbing needs!"
Response time1 day
1 neighbors recently requested a quote
Recommended by93%of homeowners
Avatar for Knockout Plumbing & Mechanical, LLC
Knockout Plumbing & Mechanical, LLC
5.0(
14
)

Serving Mercer Island, WA and surrounding areas

Angi Approved

In business since 2019

Emergency services offered

Warranties offered

"We had a great experience with Knockout. Small plumbing repair job that they were able to fix quickly. Gave us multiple options on how best to address the immediate problem, as well as prospective problems in the future. No complaints and would definitely hire again."
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+53

Recommended by100%of homeowners
Avatar for Day & Nite Plumbing & Heating, Inc.
Day & Nite Plumbing & Heating, Inc.
4.4(
201
)

Serving Mercer Island, WA and surrounding areas

Angi Approved

In business since 1954

Emergency services offered

Warranties offered

"Very expensive and overprice, just to change an Outdoor Garden Faucet that cost $32 at Home Depot, I paid $694.99, this is what you call HIGHWAY ROBBERY."
Outdoor Ductless Unit
Indoor Ductless Unit
Outdoor Ductless lineset and Unit
Pump System
Response time2 days
17 neighbors recently requested a quote
Recommended by82%of homeowners
Showing 1-10 of 24
FAQs for water heater repair or service projects in Mercer Island, WA

Warning signs include fluctuating water temperatures, a pilot light that repeatedly goes out, unusual noises from the tank, or complete heating failure. You might also detect a rotten egg smell, indicating a potential gas leak, or notice water that never reaches the proper temperature. If your water heater is over eight years old and displaying these symptoms, the gas valve is a likely culprit. Professional inspection is recommended, especially if gas odors are present.

Water heater gas valves are not universally interchangeable. Each valve must match your specific water heater's make, model, and specifications. Important compatibility factors include gas type (natural gas vs. propane), BTU rating, connection types, and physical dimensions. Using an incorrect valve can result in poor performance, premature failure, or dangerous gas leaks. Always consult your water heater's documentation or a professional plumber to identify the appropriate replacement valve for your unit.

The Mercer Island, WA homeowners’ guide to water heater repair or services

From average costs to expert advice, get all the answers you need to get your job done.