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Find Water heater repair or service pros in Mercer Island

Avatar for Stream Water Heaters
Stream Water Heaters
5.0(
50
)

Serving Mercer Island, WA and surrounding areas

Approved

In business since 2021

Free estimates

Emergency services offered

"George was a professional, gave me quote, based on pictures to replace water heater including pick up at Lowe's and all the extra equipment also disposal of old water heater. The quote was upfront and straightforward . He was knowledgeable and professional . I will use his services when need and recommend him without resvation The only thing I needed to do is to reset the heater."
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%
Recommended by12%of homeowners
Avatar for Stream Water Heaters
Stream Water Heaters
5.0(
51
)

Serving Mercer Island, WA and surrounding areas

Approved

Super Service Award Winner

In business since 2021

Free estimates

Emergency services offered

"George was super helpful over the phone determining the right water heating solution for our home, was highly communicative and transparent throughout the process, and made quick work of the installation of our electric water heater. Would highly recommend to other folks in Seattle in need of a water heater upgrade!"
New
New 3
New 2
New Setup 2
New setup

+8

Response time5 hrs
Response rate99%
6 neighbors recently requested a quote
Avatar for Day & Nite Plumbing & Heating, Inc.
Day & Nite Plumbing & Heating, Inc.
4.3(
225
)

Serving Mercer Island, WA and surrounding areas

Approved

In business since 1954

Emergency services offered

Warranties offered

"Rob came out to review our existing system and helped us figure out what kind and brand of heat pump would work best with our system. He was very patient and informative, and answered all our questions without any pressure or up-sells (we had quotes from five providers). We signed the contract and payed our deposit in June 2021, but unfortunately global supply chain issues delayed the parts being received. Day & Nite were communicative of the issue and offered several alternatives, including a refund of the deposit. We opted to wait for the parts. It took four months, but the techs (lead by Jeff B) were fantastic and very accommodating in how we wanted piping and wiring routed. We are very pleased with how it's turned out and loved working with a local (and family owned!) company! Our gas water heater is due for replacement soon, and we'll be coming back to Day & Nite for that!"
Outdoor Ductless Unit
Indoor Ductless Unit
Outdoor Ductless lineset and Unit
Pump System
Response time2 days
16 neighbors recently requested a quote
Recommended by82%of homeowners
Avatar for Pipers Drain Repair LLC
Pipers Drain Repair LLC
4.8(
14
)

Serving Mercer Island, WA and surrounding areas

Approved

In business since 2025

Free estimates

Emergency services offered

Pipers Drain Repair is a trusted provider of professional plumbing company services dedicated to keeping residential and commercial plumbing systems flowing efficiently. With a commitment to quality workmanship, fast response times, and exceptional customer service, Pipers Drain Repair specializes in diagnosing and resolving a wide range of plumbing issues, from leaking water line repairs to full house repipes. Using advanced equipment and proven techniques, the company delivers reliable, long-lasting solutions that help prevent costly future problems. Pipers Drain Repair takes pride in offering honest assessments, transparent pricing, and customized services tailored to each customer’s needs. Whether handling routine maintenance, drain inspections, hydro jetting, or complex repairs, the team is focused on delivering dependable results with minimal disruption. Known for professionalism, integrity, and attention to detail,

Liner Install
Liner Install
sewer camera inspection
Sink Drain Repair
Sink Drain Repair

+11

1 neighbors recently requested a quote
Avatar for Puget Sound Plumbing & Heating, Inc.
Puget Sound Plumbing & Heating, Inc.
3.7(
238
)

Serving Mercer Island, WA and surrounding areas

Approved

In business since 2007

Emergency services offered

Warranties offered

"They came out as scheduled, had new water heater on the truck. Removal of old device followed by flawless and quick installation of new water heater. Definitely recommend Joseph and his apprentice!"
Kitchen drain replacement
Kitchen drain replacement
Faucet Repair
Replace Water Heater
Tankless

+1

Response time2 hrs
26 neighbors recently requested a quote
Recommended by86%of homeowners
Avatar for Drain Pro Plumbing Inc
Drain Pro Plumbing Inc
4.8(
603
)

Serving Mercer Island, WA and surrounding areas

Approved

In business since 2009

Free estimates

Emergency services offered

"The faucet was leaking on my bathtub with a steady drip. After reviewing YouTube videos on how to replace the Delta cartridge, I thought it was in my capabilities to perform the work. Since I couldn't isolate the bathtub's water supply from the household water supply, and that I'm a law abiding citizen of Murhphy's Law, I couldn't see having the household water supply cut off for several hours while I tried to fix whatever predicament awaited my entanglement. Being of sound mind, I determined a professional touch might be a better plan. I called Drain Pro Plumbing Inc., and I am so happy that I did. Two workers showed up, very polite and capable, and had the cartridge replaced in no time and left no mess. I am pleased with the work they did and haven't had any problems or issues with the repair. I will definetly use Drain Pro Plumbing Inc. in the future for any plumbing concerns I may encounter."
Water service
Split water meter
Water meter installation
Water heater installation
Broken p-trap and pop assembly

+18

Response time1 day
Recommended by97%of homeowners
Avatar for Harts Plumbers, Electricians, & HVAC Technicians
Harts Plumbers, Electricians, & HVAC Technicians
4.6(
1,037
)

Serving Mercer Island, WA and surrounding areas

Approved

In business since 2013

Emergency services offered

Warranties offered

"Dominick was on time explained what he was going to repair did a great job explained and wrote up estimate for replacing a new water heater fast service, polite technician explained my options for new water heater to be replaced in Jan great guy will hire him in Jan to replace the hot water heater"
Before the Extension
After Extension
Recommended by92%of homeowners
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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.