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Top-Rated Water heater repair or service pros in Mount Vernon - Updated Nov 2026

Avatar for SeaTown Electric Heating and Air
SeaTown Electric Heating and Air
4.7(
1,638
)
Water Heater - Repair or Service

Serving Mount Vernon, WA and surrounding areas

Approved

In business since 2014

Free estimates

Emergency services offered

"Knowledgeable and fast! Had access to the heat pump technology I wanted to install while replacing defunct water heater. Prompt and efficient. Super satisfied!"
Seattle's Rewire Specialists
Generator
Tesla Chargers
Knob and Tube Removal
Ductless Install

+26

Response time1 day
3 neighbors recently requested a quote
Recommended by93%of homeowners
Avatar for Mr. Rooter Plumbing
Mr. Rooter Plumbing
4.4(
91
)
Water Heater - Repair or Service

Serving Mount Vernon, WA and surrounding areas

Approved

In business since 1995

Free estimates

Emergency services offered

"Mr.Rooter responds , has very competent plumbers, do the job right and I have no hesitation recommending their service. They are not inexpensive, but they do the repairs and seem much more available than other plumbing services."
Sewer Repair
Sewer Repair
Sewer Repair
Sewer Repair
Sewer Repair

+34

1 neighbors recently requested a quote
Recommended by95%of homeowners
Avatar for About Plumbing
About Plumbing
4.6(
66
)
Water Heater - Repair or Service

Serving Mount Vernon, WA and surrounding areas

Approved

In business since 2015

Warranties offered

Small jobs welcome

"Jordan came out and was very friendly and knowledgeable about my leaky waterheater. He took time to explain why it was leaking and advised me on how to keep the new one maintained. Jordan was very cautious and made sure his mask was on. I really appreciated that! He did an excellent job in installing a new one and made sure things were cleaned up when done. I would refer About Plumbing to anyone and will use them again when needed."
Sink Install
Water Heater
Pic3
Truck and Equipment
Response time10 hrs
29 neighbors recently requested a quote
Recommended by95%of homeowners
Avatar for LaVergne Plumbing & Heating
LaVergne Plumbing & Heating
4.5(
11
)
Water Heater - Repair or Service

Serving Mount Vernon, WA and surrounding areas

Approved

In business since 1951

Emergency services offered

Warranties offered

"Communication was excellent plumber diagnosed additional problem on shut off-excellent Plumber only quoted a high price to install water outlet NOT to fix shut off problem, I found the price to be way too high for the smaller fix so declined the service to go any further."
Well Pump Equip
Frank
Well Pump Truck
Well Pump Service
Meet Frank!

+13

Response time6 hrs
Response rate100%
73 neighbors recently requested a quote
Avatar for Home Comfort Alliance
Home Comfort Alliance
4.7(
341
)
Water Heater - Repair or Service

Serving Mount Vernon, WA and surrounding areas

In business since 1977

Free estimates

Emergency services offered

"My heater began blowing cold air through the house around Thanksgiving. I had it serviced in hopes that it would improve. Instead, the serviceman showed me that 2 of the 5 heat sources were blown out, and the furnace was too old to get replacement parts. I used Angie's List to locate several HVAC companies from which I received 3 bids. G&S was the best bid. The salesman, Ryan, was polite, punctual, and showed me all the options for the furnace brand that I wanted. The rebate from Costco for the brand that I wanted also made a major difference. Ryan even came back with the contract when I informed him that they had won the bid. G&S Heating was available to measure for and install a new furnace before the New Year. The crew installed the new furnace in no time at all. The house is so much warmer, and I am most grateful for their efficient service and professional demeanor. THANK YOU!!"
Additional Photos
Choose Home Comfort Alliance for professional HVAC installation.
Seattle’s HVAC installation pros provide efficient, reliable service.
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+1

Response time1 day
Response rate100%
Recommended by91%of homeowners
Showing 1-10 of 36
FAQs for water heater repair or service projects in Mount Vernon, 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 Mount Vernon, 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.