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TRUSTED BY COTATI, CA HOMEOWNERS

  • Average homeowner rating star icon4.6
    Average homeowner rating
  • Verified reviews icon446
    Verified boiler repairs reviews

Find Boiler repair pros in Cotati

Avatar for Moore Home Services
Moore Home Services
4.4(
225
)
Electric Boiler or Radiator Heating System - InstallElectric Boiler or Radiator Heating System - RepairGas Boiler or Radiator Heating System - Install

Serving Cotati, CA and surrounding areas

Approved

In business since 2009

Free estimates

Emergency services offered

"I have been a Moore Home Services customer for well over 5 years. They have always treated me as a valued customer from Customer Service Team to the Technicians. The Moore team is professional, friendly and extremely knowledgeable. They communicate problems and work to be done in simple layman's terms. Technicians Marcos Sosa and Sebastian fixed my clogged sink that now works great. They were even able to come earlier than scheduled. As a senior citizen, living on my own, this made my day. Thank you Team Moore. Cindy"
After 1
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Perfect Retrofit
After 2

+15

25 neighbors recently requested a quote
Recommended by98%of homeowners
Avatar for RIDGEBACK MECHANICAL
RIDGEBACK MECHANICAL
5.0(
20
)
Electric Boiler or Radiator Heating System - Repair - For BusinessGas Boiler or Radiator Heating System - Repair - For BusinessOil Boiler or Radiator Heating System - Repair - For Business

Serving Cotati, CA and surrounding areas

Approved

In business since 2024

Free estimates

Emergency services offered

"Vince arrived on time, diagnosed the issue thoroughly, then made the repair. He provided clear communication around repair options and cost. I appreciated that he took the time to listen to the problem we were experiencing. It is a good feeling to have that the person providing repair services can be trusted to do so. I would definitely call him again and refer to family and friends."
Guages
Diagram
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Response time2 hrs
Response rate90%
4 neighbors recently requested a quote
Avatar for GOLDENLINE PLUMBING LLC
GOLDENLINE PLUMBING LLC
5.0(
8
)
Gas Boiler or Radiator Heating System - InstallGas Boiler or Radiator Heating System - Repair

Serving Cotati, CA and surrounding areas

Approved

Free estimates

Warranties offered

Small jobs welcome

"Had an issue with a broken pull out shower handle. After assessing the issue, the plumber could not replace the old style pull out without risking damage to the pipes. I did my research and knew that this was a possibility due to the age of the handle. Aris first came on a Friday soon after making the request. After the assessment, and the recommendation to replace the internal pipe to a rotating handle, he was able to return early Saturday to finish the job. All in all, I have to say Aris was great in the way he explained the work and the timeliness of getting it done. I would definitely call again if any future plumbing issues come up."
Tankless Water Heater
House Filtration System
Earthquake Valve Install
Roman Tub Faucet
My jobs

+5

2 neighbors recently requested a quote
Avatar for Elevated Comfort
Elevated Comfort
4.8(
4
)
Boiler or Radiator Heating System - Install or ReplaceBoiler or Radiator Heating System - Install or Replace - For BusinessBoiler or Radiator Heating System - Repair or Service+1 more

Serving Cotati, CA and surrounding areas

Approved

In business since 2020

Free estimates

Warranties offered

"These guys rocked, from the time I called on a Friday, to the install of our brand new furnace the following Tuesday! Technician-Scott and Ryan were prompt, friendly, informative and professional. The quote/estimate given was fair/reasonable and in the end was what we paid. Installers-Oscar and Kevin were prompt, friendly, informative, professional, quick and did an outstanding job. Thank you to everyone at Elevated Comfort for your great service! I would definitely recommend them to anyone needing HVAC work to be done!"
Elevated Comfort
Elevated San Rafael
AC Tune-Up
Heat Pump!
Heat pump install

+5

Response time2 days
Response rate100%
14 neighbors recently requested a quote
Avatar for Peter Levi Plumbing, Heating, Cooling, Drains
Peter Levi Plumbing, Heating, Cooling, Drains
3.0(
13
)
Boiler or Radiator Heating System - Install or ReplaceBoiler or Radiator Heating System - Install or Replace - For BusinessBoiler or Radiator Heating System - Repair or Service+13 more

Serving Cotati, CA and surrounding areas

Approved (Corporate)

In business since 1990

Free estimates

Warranties offered

"Service plumber arrived on site, on time and was ready to begin. He was friendly and professional. He was fully aware of the problem and what needed to be done. He acquired the necessary parts and changed them accordingly as proficient as possible. Our bathroom sink drain issue was completely resolved and ready. Thank you Eric for a great job!"
11 neighbors recently requested a quote
Recommended by70%of homeowners
Avatar for Service Champions Heating & Air Conditioning
Service Champions Heating & Air Conditioning
4.6(
688
)
Boiler or Radiator Heating System - Install or ReplaceBoiler or Radiator Heating System - Install or Replace - For BusinessBoiler or Radiator Heating System - Repair or Service+13 more

Serving Cotati, CA and surrounding areas

In business since 2003

Free estimates

Emergency services offered

"The team of four was very professional and performed an excellent job in a record period of time. Just one day to take the old furnace away, replace all the old boots and duct work and install the new furnace. They paid a lot of attention not to damage or dirty the floor/carpet. I am very happy with their performance. They may not be the cheapest on the block but it was all worthed and you only have to do that once in your lifetime."
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+42

Response time9 hrs
Response rate100%
Recommended by91%of homeowners
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Boiler Repair questions, answered by experts

If your radiator turns on every time you turn on your hot water, your problem is likely your motorized three-port valve that’s attached to your boiler. When it malfunctions, the valve isn’t closing properly, so the water begins to flow to your radiator, thus kicking off the heat. To fix this, hire a boiler repair tech near you to replace your valve.

Steam boilers require flushing at least every six to 12 months to keep them operating effectively for as long as possible. Depending on your water quality and frequency of use, you might need to do this more frequently. The flushing process helps to remove problematic buildup of sediments. While a boiler contractor near you can perform a thorough annual flush, learning how to drain the system yourself means you can do this monthly if you experience speedy mineral accumulation because of hard water. 

The best time to buy home heating oil is in the summer when the demand is lowest, as the prices are usually lower. However, waiting until the summer to buy is often unavoidable unless you install a separate storage tank. If you have the space for a second tank, you can expect to pay between $1,000 and $4,000 for the oil tank replacement or installation, depending on the capacity and location. You could quickly recuperate these costs, though, by stocking up on heating oil in the summer and avoiding deliveries in the winter when prices are highest.

Common problems include leaks, low pressure, and inefficient heating. Regular maintenance prevents many issues.

Addressing banging, clanging, and hissing radiators involves several steps. Start by bleeding the radiator to release trapped air, a common source of noise. Next, ensure all valves, brackets, and pipes are securely tightened to prevent the components from rattling. You can also consider installing radiator insulation to dampen heat expansion sounds. If you perform all of these fixes and the noise persists, explore the use of radiator additives that can mitigate water-related noises. If all else fails, you should consult an HVAC professional.

The Cotati, CA homeowners’ guide to boiler repairs

From average costs to expert advice, get all the answers you need to get your job done.