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Top-Rated Tankless water heater repair pros in Vashon - Updated Nov 2026

Avatar for Harts Plumbers, Electricians, & HVAC Technicians
Harts Plumbers, Electricians, & HVAC Technicians
4.6(
1,467
)
Tankless Water Heater - Repair

Serving Vashon, WA and surrounding areas

Approved

Super Service Award Winner

In business since 2013

Emergency services offered

Warranties offered

"Brian was on time and super knowledgeable for dealing with my tankless hot water heater. He got right to work and dealt with the problem and helped me establish a paper trail with the manufacture in case of any future warranty concerns."
Prep Area
Waterfall Finished!
Excavation jobs and more!
 install grease trap for commercial kitchen
Delivery of Shoring

+334

43 neighbors recently requested a quote
Recommended by86%of homeowners
Avatar for Harts Plumbers, Electricians, & HVAC Technicians
Harts Plumbers, Electricians, & HVAC Technicians
4.6(
1,249
)
Tankless Water Heater - Repair

Serving Vashon, WA and surrounding areas

Approved

Super Service Award Winner

In business since 2013

Emergency services offered

Warranties offered

"Brian was on time and super knowledgeable for dealing with my tankless hot water heater. He got right to work and dealt with the problem and helped me establish a paper trail with the manufacture in case of any future warranty concerns."
Pipe llining
Pipe relining
Pipe relining
Camera inspections
Response time50 mins
Response rate100%
21 neighbors recently requested a quote
Avatar for Platinum Full Service Plumbing, LLC
Platinum Full Service Plumbing, LLC
4.5(
66
)
Tankless Water Heater - Repair

Serving Vashon, WA and surrounding areas

Approved

In business since 2017

Free estimates

Credit card accepted

"Morgan was very friendly and kept me informed about the service. Brandon is very friendly and worked with me on cost of service! He did the small repair quickly and answered my questions about the water heater. Plumbing service is very expensive these days, but Brandon didn’t push/sell anything, I appreciate that. I highly recommend them!"
Response time8 hrs
84 neighbors recently requested a quote
Recommended by88%of homeowners
Avatar for SIMBA SOLUTIONS CO LLC
SIMBA SOLUTIONS CO LLC
4.7(
18
)
Tankless Water Heater - Repair

Serving Vashon, WA and surrounding areas

Approved

In business since 2025

Free estimates

Warranties offered

"Absolutely fantastic service!!! Jason did an amazing job installing our new tankless water heater, and the whole experience was smooth and stress-free. He took the time to answer all our questions, made sure everything was set up perfectly, and left the workspace spotless. You can tell he takes pride in his work. We?re beyond happy with the results and grateful for the excellent service"
Simba plumbing
Simba plumbing
Simba plumbing
Simba plumbing
Simba plumbing

+29

1 neighbors recently requested a quote
Avatar for Cahill's Plumbing & Heating
Cahill's Plumbing & Heating
4.1(
38
)
Tankless Water Heater - Repair

Serving Vashon, WA and surrounding areas

Approved

Credit card accepted

Customers say: Super punctual

"Work was done quickly and professionally. Were very careful to collect and/or cleanup any water drips. Had to cut wall board in laundry room to repair hose bib. Removed as small a piece as possible and replaced when finished."
1 neighbors recently requested a quote
Recommended by82%of homeowners
Avatar for Washington Water Heaters
Washington Water Heaters
4.7(
199
)
Tankless Water Heater - Repair

Serving Vashon, WA and surrounding areas

In business since 2002

Free estimates

Credit card accepted

"From the staff I spoke with over the phone to the technician that came, the experience was excellent and trusting. I had a difficult time trying to find the right company that was familiar with my water heater model, I was reassured that Washington Water Heaters had several technicians that knew my water heater model. I had contacted at least 7 vendors, in which 3 responded; however, Washington Water Heaters was the only company that sent someone out that actually looked at and diagnosed my problem. A temporary fixed was completed on arrival and a follow-up a few days later with a new parts. I felt that the service and follow-up from the technician to the staff over the phone was superb! Thanks."
Response time1 day
Response rate100%
Recommended by92%of homeowners
Avatar for Hot Water Heater Company
Hot Water Heater Company
4.1(
15
)
Tankless Water Heater - Repair

Serving Vashon, WA and surrounding areas

In business since 2016

Free estimates

Emergency services offered

"Izaak called and said he'd be able to come in three hours, he showed up exactly on time and quickly diagnosed the leak as a failed connection on a flexible copper input line to the top of the water heater. He went out and got the parts and replaced all the flex pipes as a precautionary measure and was done within the hour. I was charged the minimum hourly charge, fair and a job well done with professionalism."
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+13

Recommended by84%of homeowners
Avatar for Home Comfort Alliance
Home Comfort Alliance
4.7(
341
)
Tankless Water Heater - Repair

Serving Vashon, WA and surrounding areas

In business since 1977

Free estimates

Emergency services offered

"My brand-new furnace performed very well through the 4-snowstorm blast. However, a week later when a small storm dumped a few inches of snow, the heater started blowing ice-cold air through the house. I hadn't made any changes to the heat schedule, so it seemed really odd that the snow-cold air only made an appearance when the thermostat was programmed for below 70 degrees. The thermostat also would change the display colors to black-on-white occasionally, usually in the evening or early morning, even though the color combination is not the default and is not on the menu. I reached out to G&S, and they scheduled the workman immediately. When Tyler arrived, he checked the furnace and thermostat thoroughly, and although he said he couldn't find anything wrong, the heater started circulating air through the house that was warmer than the unheated garage. I said I would monitor the heater in case it did it again, and it hasn't so far. Spring is nearly here, and the air is considerably warmer, but the house has never felt like the heater was blowing air from an open window. Also, the thermostat theme has not reset itself. Good job!"
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+1

Response time1 day
Response rate100%
Recommended by91%of homeowners
Avatar for All Water Plumbing LLC
All Water Plumbing LLC
5.0(
12
)
Tankless Water Heater - Repair

Serving Vashon, WA and surrounding areas

Free estimates

Emergency services offered

Credit card accepted

All Water Plumbing LLC is a family owned business, we are fully licensed, bonded and insured. And we are member of Better Business Bureau with complaint free. We guarantee all of our services, whether it is installation or repair and no matter how large or small the job, all of our customers are treated with respect and get the quality service that they deserve. When we arrive at your location, we assess your plumbing issues, discuss alternatives with you, and provide up-front pricing before we begin work on your project. We are proud to serve the King county and surrounding community. We are available 24 hours in case of plumbing emergencies and No extra charge for nights and weekends.

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+24

Recommended by100%of homeowners
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