Top-rated water heater repair or service pros.

Get matched with top water heater repair or service pros in Knightsen, CA

Enter your zip and get matched with up to 3 pros

Matching on HomeAdvisor

Share some details icon
Share some details about your home project.
Match with local pros icon
Within moments, match with highly-rated local pros.
Compare quotes icon
Compare quotes and choose the best pro for the job.

Find Water heater repair or service pros in Knightsen

Avatar for Water Heaters Masters
Water Heaters Masters
4.9(
108
)

Serving Knightsen, CA and surrounding areas

Approved

In business since 2006

Free estimates

Emergency services offered

"Water Heater Masters were top-notch! I called on a Saturday afternoon - they were available 9am Sunday morning to come and inspect and quote. They only had one guy working that day, but scheduled me for Monday morning between 8 and 9. At 8:15am I got a call with an ETA of 8:45, which was a really nice touch! Despite telling me it would take an entire day to install, they were done by 1pm. They also found some creative ways to do the install to avoid drilling through my stucco (for the exhaust vent and for the condensate run-off). Very professional and clean-looking install. These guys may not always be the cheapest around, and they recommended a top-of-the-line heater (which is what I really wanted anyway), but I'd much rather pay a little extra for that level of service and support. Thank you!"
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+20

Response time9 hrs
1 neighbors recently requested a quote
Recommended by97%of homeowners
Avatar for Albert Nahman Plumbing, Heating, and Cooling
Albert Nahman Plumbing, Heating, and Cooling
4.4(
715
)

Serving Knightsen, CA and surrounding areas

Approved (Corporate)

In business since 1981

Free estimates

Warranties offered

"The first visit lead to cleaning the area around the heater and burners and checking the thermocouple. Sadly that seemed to make it worse. Less than a week later No hot water for over 30 hours till the second technician replaced the thermocouple. All is perfect now. No charge for the second visit. The next step, if needed will be a tankless and their quote looks a bit steep. But I am really hoping I won’t need to go that far."
Living room Mini-Split
Aquasana home Filtration
Almost no disturbance at EBMUD meter
Navien with filtration to protect the heat exchanger
New house valve and Pressure Reducing Valve

+73

Response time8 hrs
Response rate99%
57 neighbors recently requested a quote
Avatar for Oak Plumbing Inc
Oak Plumbing Inc
4.6(
99
)

Serving Knightsen, CA and surrounding areas

Approved

Super Service Award Winner

In business since 2016

Free estimates

Emergency services offered

"Oak called 2nd but came next day/ UN-prepared to do either repair or water test (requested on phone) or even replace with ready new ADA toilet that the lying receptionist booker said they have “some in stock and if not he will show a catalog of choices”. Guy came punctually with Nzo tools or appliances Or knowledge of what I asked for as an “URGENT repair/replace”. See ABC review same call. Not quite as bad as them doing same since we also still have broken HVAC too, both said they would fix ( I bought gasket already, they could have put in) or replace if they brought new toilet. Problem is not in water pipes except they need testing for lead - both said they would do this too - when I asked oak re taking a sample, how long sitting in pipes? He wiped off his soda water bottle and asked “which pipes?” !!"
Response time2 days
3 neighbors recently requested a quote
Recommended by87%of homeowners
Pedro Galvan Plumbing, Inc.
4.9(
20
)

Serving Knightsen, CA and surrounding areas

Approved

In business since 2004

Free estimates

Offers commercial services

"We are incredibly grateful to Pedro Galvan and his team for stepping in during a moment of urgent need. When our hot water system suddenly failed, leaving us without hot water for daily essentials, Pedro responded with a level of professionalism, clarity, and compassion that is truly rare. From the very first call, Pedro was attentive, transparent about pricing, and committed to solving the problem quickly. He provided us with the most cost-effective and honest quote out of several we obtained—and, even more importantly, was able to come almost immediately when others could not. His workmanship was precise, efficient, and tidy. It was clear we were in the hands of someone who genuinely takes pride in his craft. In a world where so many service professionals overpromise and underdeliver, Pedro Galvan delivers exactly what he promises—and does so with warmth, integrity, and a deep respect for his clients. We recommend him without hesitation to anyone needing plumbing services."
Response time8 hrs
Recommended by94%of homeowners
Avatar for BCMN
BCMN
4.9(
11
)

Serving Knightsen, CA and surrounding areas

Approved

In business since 2015

Free estimates

Warranties offered

"Arrived promptly for emergency repair. Clearly explained job & changes needed for current codes. Worked efficiently & cleaned work area. Would highly recommend them."
Response time4 hrs
1 neighbors recently requested a quote
Recommended by77%of homeowners
Next Generation Plumbing, LLC
New to Angi

Serving Knightsen, CA and surrounding areas

Approved

In business since 2019

Free estimates

Credit card accepted

We are committed to excellence in every aspect of our business. We uphold a standard of integrity bound by fairness, honesty, and personal responsibility. Our distinction is the quality of service we bring to our customers. Accurate knowledge of our trade combined with ability is what makes us true professionals. Above all, we are watchful of our customers' interests and make their concerns the basis of our business.

Response time6 hrs
Avatar for Emergency Water Heater and Plumbing
Emergency Water Heater and Plumbing
4.8(
48
)

Serving Knightsen, CA and surrounding areas

In business since 2015

Free estimates

"Mohammed is very customer oriented. I was uncertain as to if my hot water heater was a small or major repair issue and he solved my problem in a very timely manner. I appreciate his timely call prior to arrival, too."
Response time2 hrs
Recommended by97%of homeowners
Avatar for Mike Williams Plumbing
Mike Williams Plumbing
4.3(
50
)

Serving Knightsen, CA and surrounding areas

In business since 1970

Free estimates

Emergency services offered

"The service was excellent. In March of 2016, he came out to check 7 water heaters to make sure there were no problems and no chance that one of them would break down or stop functioning. He is a very conscientious contractor that would look out for your needs. The price was right, as well."
Additional Photos
Recommended by90%of homeowners
Avatar for HVAC Utor Services
HVAC Utor Services
5.0(
31
)

Serving Knightsen, CA and surrounding areas

In business since 2010

Free estimates

Emergency services offered

"Diego was very efficient and professional. We bought a new water heater from Home Depot, and he let us know everything we needed beforehand so that his work was really quick. He demolished our old water heater stand so that we can have it replaced with a new one also. Thanks, Diego!"
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+24

Recommended by100%of homeowners
...
Showing 1-10 of 85
FAQs for water heater repair or service projects in Knightsen, CA

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 Knightsen, CA 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.