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Find Water heater repair or service pros in Mercer Island

Avatar for Stream Water Heaters
Stream Water Heaters
5.0(
33
)

Serving Mercer Island, WA and surrounding areas

Approved

In business since 2021

Free estimates

Emergency services offered

"My water heater died last week. I went on Home Advisor and received a number of calls. One from George at Stream Water Heaters. We discussed my problem. George requested Photos of the heater and the area around the heater. Within 30mins I received an estimate. The price was totally reasonable for equipment and install. The water heater from a well known company and carried a better than good warranty. I received an install time of 6pm next day. The team remved the old water heater, replaced an obsolete valve, and installed the new water heater. I had numerous questions. All my questions were answered in the most courteous manner. The professionalism, expertise, and timeliness of George's Team were exceptional. Highly recommend this company."
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 Stream Water Heaters
Stream Water Heaters
5.0(
34
)

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%
17 neighbors recently requested a quote
Avatar for Seatown Electric Plumbing Heating & Air
Seatown Electric Plumbing Heating & Air
4.8(
1,338
)

Serving Mercer Island, WA and surrounding areas

Approved (Corporate)

In business since 2013

Emergency services offered

Warranties offered

"The Seatown team did a great job. I got quotes from 3 different recommended plumbing services, but the Seatown guys were the only ones who recognized we would need to upgrade our gas meter. They did a great job explaining how to get this scheduled with PSE. The estimate Seatown gave was on par with some of the other plumbers, so we went with them. They sent 2 service people to come and install the tankless and the guys were just excellent. I expressed concern about mounting the water heater on the beams in our basement because Our house is so old, so they came up with a better solution. They built a small wall frame to mount the water heater. No extra cost. When they found there was no outlet wired near the heater they were able to get an electrician from Seatown to come out and wire one up while they worked on the water heater install. Seatown aldo had a good scheduling method, sent text reminders the day they were coming to do the work with a photo of the person who was coming and a short set of info about the person. It was a nice touch, and a thoughtful safety measure. They did a great job with the install which took several hours. I’d definitely hire them again."
Generator Repair
Additional Photos
Additional Photos
Electrical Panel Repair
Additional Photos

+44

94 neighbors recently requested a quote
Recommended by93%of homeowners
Avatar for Day & Nite Plumbing & Heating, Inc.
Day & Nite Plumbing & Heating, Inc.
4.4(
202
)

Serving Mercer Island, WA and surrounding areas

Approved

In business since 1954

Emergency services offered

Warranties offered

"I purchased a new Navien NPE-240A2 Tankless Water Heater and had it installed. I'm loving the new water heater. It replaces an old Noritz tankless that died just before this installation. The on-site estimate was what sold me. Ken went through all the details and answered a lot of questions from me. Zachary came out with Austin and performed the installation just like I discussed with Ken. Zachary kept me in the loop throughout the installation to ensure I was in agreement with how it was going. Zachary always had my interest at heart and ensured no corners were cut. The installation is much cleaner, and more correct than the previous tankless company did. Zachary even listened to my concern about the astectics of the exterior exhaust and quickly found an easier and cleaner looking way to address my concern. He also removed an old recirculation pump and replaced a new main house shutoff valve. The entire area was treated respectfully and left cleaner than they found it."
Outdoor Ductless Unit
Indoor Ductless Unit
Outdoor Ductless lineset and Unit
Pump System
Response time2 days
25 neighbors recently requested a quote
Recommended by82%of homeowners
Avatar for Drain Pro Plumbing Inc
Drain Pro Plumbing Inc
4.9(
560
)

Serving Mercer Island, WA and surrounding areas

Approved

In business since 2009

Free estimates

Emergency services offered

"There was minor scheduling mishap where the scheduler put the wrong date on their calendar, but when I called to ask where the plumber was, they immediately worked to get a plumber to my house within 20 minutes. Ammon arrived and was very friendly and competent. I pointed him to the area where I had seen water and he jumped in to locate the source. After a bit of inspection he identified a leaky valve on my sink. He extended the copper water pipes and replaced the leaky valve after explaining to both my wife and I what the issue was and what he was doing. After he resolved the problem, he gave us his direct number and told us to call him if we saw any more water. After a competitor had been out twice to try and repair the issue, it was refreshing to see Ammon so invested in finding and fixing my issue as well as making sure I was happy with his work. I would definitely hire Drain Pro again and I would certainly request Ammon."
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 by97%of homeowners
Avatar for Harts Plumbers, Electricians, & HVAC Technicians
Harts Plumbers, Electricians, & HVAC Technicians
4.7(
866
)

Serving Mercer Island, WA and surrounding areas

Approved

In business since 2013

Emergency services offered

Warranties offered

"Provided a very timely, professional, and caring assessment of water damage assessment with estimate repair costs. Thank you and looking forward to further use of Harts services."
Before the Extension
After Extension
8 neighbors recently requested a quote
Recommended by92%of homeowners
Avatar for Schmitty's Plumbing
Schmitty's Plumbing
4.8(
48
)

Serving Mercer Island, WA and surrounding areas

Approved

In business since 2016

Free estimates

Emergency services offered

"several repairs were made at a reasonable price. pointed out leaking water heater that is 11 years old and should be replaced. their quote to do so is comparable to other providers. will use schmittys for the replacement."
Response time1 day
1 neighbors recently requested a quote
Recommended by93%of homeowners
Avatar for Trusted Plumbing & Heating, LLC
Trusted Plumbing & Heating, LLC
4.4(
206
)

Serving Mercer Island, WA and surrounding areas

Approved

In business since 2016

Emergency services offered

Warranties offered

"Trusted Plumbing and Heating Company rescued me. The technician was very knowledgeable and thorough. I needed adfitional work done outside of installing a water heater and the technician was able to provide a trusted resource. This made the job go really smoothly and in a timely manner. I will keep them in my phonebook for future references."
Clean out
Liner Trailer
Response time10 hrs
Recommended by88%of homeowners
Showing 1-10 of 21
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.