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  • Verified reviews icon135
    Verified boiler repairs reviews

Find Boiler repair pros in Saint Helena

Avatar for ACP Mechanical

ACP Mechanical

457 Cedar River Wy
5.00(
9
)
Approved Pro

ACP Mechanical

457 Cedar River Wy
5.00(
9
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
15 local quotes requested

We take credit cards. Located in Sacramento, CA, we specialize in Heating, Ventilation and Air Conditioning (HVAC) installation, repair and maintenance. We work with you to make sure you have the most efficient and comfortable system for your home. A proper system can not only help improve air comfort and quality, but it can also help save you money on your energy bills. We are your one stop source that delivers quality work with a service oriented attitude. We service the greater Sacramento Area and neighboring cities. Emergency services available Call 916-704-8556. Ask about our Financing Options!

"Work was done promptly and efficiently."

James C on November 2019

We take credit cards. Located in Sacramento, CA, we specialize in Heating, Ventilation and Air Conditioning (HVAC) installation, repair and maintenance. We work with you to make sure you have the most efficient and comfortable system for your home. A proper system can not only help improve air comfort and quality, but it can also help save you money on your energy bills. We are your one stop source that delivers quality work with a service oriented attitude. We service the greater Sacramento Area and neighboring cities. Emergency services available Call 916-704-8556. Ask about our Financing Options!

"Work was done promptly and efficiently."

James C on November 2019


Avatar for Elevated Comfort

Elevated Comfort

374 Blodgett St
4.75(
4
)
Approved Pro

Elevated Comfort

374 Blodgett St
4.75(
4
)
Approved Pro
Customers say: Quick response
82 local quotes requested
5 years of experience

Elevated Comfort is an HVAC service provider that specializes in AC installation, repair, and maintenance. They have technicians with years of experience to provide you with the highest level of quality workmanship for all your needs! Located in the Santa Rosa area, this team provides services throughout Sonoma County as well Marin county - serving residential properties or commercial spaces up here along California's North Coast region perfectly.

"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!"

Jason M on December 2024

Elevated Comfort is an HVAC service provider that specializes in AC installation, repair, and maintenance. They have technicians with years of experience to provide you with the highest level of quality workmanship for all your needs! Located in the Santa Rosa area, this team provides services throughout Sonoma County as well Marin county - serving residential properties or commercial spaces up here along California's North Coast region perfectly.

"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!"

Jason M on December 2024


Avatar for Simpson Sheet Metal, Heating & Air Conditioning

Simpson Sheet Metal, Heating & Air Conditioning

2833 Dowd Drive
4.64(
25
)
Approved Pro

Simpson Sheet Metal, Heating & Air Conditioning

2833 Dowd Drive
4.64(
25
)
Approved Pro
Customers say: Quick response
Recommended by 92% of Angi customers
Recommended by 92% of HomeAdvisor customers
36 local quotes requested

Serving Santa Rosa for over 30 years, we are proud to be a Carrier Factory Authorized Dealer and were honored to be win the Carrier President's Award Winner in 2008. A family-owned business, we employ some of the BEST people in the HVAC industry with a combined experience of over 50 years. Our technicians are certified by the North American Technician Excellence (NATE)organization. We are a member of Local Sheet Metal Union 104 which means our employees are highly trained, educated and well skilled in all makes and models of heating, ventilation and air conditioning systems. We are also members of the Santa Rosa Chamber of Commerce, North Coast Builders Exchange, and Marin Builders Association. We provide respectful, dependable, honest and reliable customer service for any job, no matter how large or small and our pricing is competitive and fair with no hidden or surprise costs. Simpson takes the family approach to business by having the estimator conduct all of our free estimates, not an aggressive sales person. This provides all of our customers with the confidence that every system is designed and installed properly. It is our commitment to ensure that all of our customers are completely satisfied. We are your one stop source for all of your heating, air conditioning and air quality needs.

"Simpson Sheet Metal HVAC was recommended by a friend who had just had a heat pump and mini-split system installed and raved about the company and the individuals to me. I had already gotten three quotes from other area companies (I was in need of replacing ancient and malfunctioning baseboards and had been using a Quadrafire wood stove to heat my house), but decided to get a quote from Simpson and it turned out to be the lowest, with the best warranty terms, and the most "hand-holding" in terms of permit, rebates and payment. I also love the fact that it's a union shop because that means a well-educated and well-treated employee. Lead installer Jose and assistant Chino did a fabulous job, and as others have said, they left everything perfectly clean and also answered my many questions with patience and good humor. John Roncone managed the job and designed the system, and has been an amazing communicator as well. Nothing but raves for Simpson! What a relief!"

Judith T on July 2023

Serving Santa Rosa for over 30 years, we are proud to be a Carrier Factory Authorized Dealer and were honored to be win the Carrier President's Award Winner in 2008. A family-owned business, we employ some of the BEST people in the HVAC industry with a combined experience of over 50 years. Our technicians are certified by the North American Technician Excellence (NATE)organization. We are a member of Local Sheet Metal Union 104 which means our employees are highly trained, educated and well skilled in all makes and models of heating, ventilation and air conditioning systems. We are also members of the Santa Rosa Chamber of Commerce, North Coast Builders Exchange, and Marin Builders Association. We provide respectful, dependable, honest and reliable customer service for any job, no matter how large or small and our pricing is competitive and fair with no hidden or surprise costs. Simpson takes the family approach to business by having the estimator conduct all of our free estimates, not an aggressive sales person. This provides all of our customers with the confidence that every system is designed and installed properly. It is our commitment to ensure that all of our customers are completely satisfied. We are your one stop source for all of your heating, air conditioning and air quality needs.

"Simpson Sheet Metal HVAC was recommended by a friend who had just had a heat pump and mini-split system installed and raved about the company and the individuals to me. I had already gotten three quotes from other area companies (I was in need of replacing ancient and malfunctioning baseboards and had been using a Quadrafire wood stove to heat my house), but decided to get a quote from Simpson and it turned out to be the lowest, with the best warranty terms, and the most "hand-holding" in terms of permit, rebates and payment. I also love the fact that it's a union shop because that means a well-educated and well-treated employee. Lead installer Jose and assistant Chino did a fabulous job, and as others have said, they left everything perfectly clean and also answered my many questions with patience and good humor. John Roncone managed the job and designed the system, and has been an amazing communicator as well. Nothing but raves for Simpson! What a relief!"

Judith T on July 2023


Avatar for Same Day Plumbing, Heating, Cooling

Same Day Plumbing, Heating, Cooling

600 American Way
New on AngiNew on Angi
Approved Pro

Same Day Plumbing, Heating, Cooling

600 American Way
New on AngiNew on Angi
Approved Pro
384 local quotes requested
2 years of experience

Family-owned Same Day Heating, Cooling, Plumbing operates out of Windsor, just north of Santa Rosa. We offer fast, reliable AC repair and installation services, heater repair & installation, and plumbing services, in the North Bay area of California. Our promise to you is always that if we do not fix your system the SAME DAY we arrive… you DON’T pay the service fee. Our home service experts are licensed and insured with more than 100 years of leadership experience. Additionally, we back all of our installation and replacement services with a 24-month, 100% satisfaction guarantee.

Family-owned Same Day Heating, Cooling, Plumbing operates out of Windsor, just north of Santa Rosa. We offer fast, reliable AC repair and installation services, heater repair & installation, and plumbing services, in the North Bay area of California. Our promise to you is always that if we do not fix your system the SAME DAY we arrive… you DON’T pay the service fee. Our home service experts are licensed and insured with more than 100 years of leadership experience. Additionally, we back all of our installation and replacement services with a 24-month, 100% satisfaction guarantee.


Avatar for Moore Home Services

Moore Home Services

3321 Industrial Drive
4.71(
389
)
Approved Pro

Moore Home Services

3321 Industrial Drive
4.71(
389
)
Approved Pro
Customers say: Super punctual
214 local quotes requested
16 years of experience

At Moore Home Services, your comfort is our promise. Since 2009, we’ve grown into a trusted HVAC leader across Northern California with 50+ trucks and 100+ highly trained team members. We believe in 100% honesty—if a simple repair is best, that’s exactly what you’ll get. Our HVAC services come with a 1-Year Trial Guarantee: if you’re not completely satisfied, we’ll refund every penny. From furnace repairs to A/C installs, our friendly, expert techs are here to help—because your happiness is our only goal.

"Orion C. Arrived on time with a friendly smile to perform my annual Fall checkup. He provided outstanding service - professional, knowledgeable, and always courteous throughout! My system runs perfectly and I would highly recommend their excellent service as represented by Orion! They are clearly committed to customer satisfaction."

Steve B on September 2025

At Moore Home Services, your comfort is our promise. Since 2009, we’ve grown into a trusted HVAC leader across Northern California with 50+ trucks and 100+ highly trained team members. We believe in 100% honesty—if a simple repair is best, that’s exactly what you’ll get. Our HVAC services come with a 1-Year Trial Guarantee: if you’re not completely satisfied, we’ll refund every penny. From furnace repairs to A/C installs, our friendly, expert techs are here to help—because your happiness is our only goal.

"Orion C. Arrived on time with a friendly smile to perform my annual Fall checkup. He provided outstanding service - professional, knowledgeable, and always courteous throughout! My system runs perfectly and I would highly recommend their excellent service as represented by Orion! They are clearly committed to customer satisfaction."

Steve B on September 2025


Avatar for Bragg Home Services

Bragg Home Services

3345 Industrial Drive
5.00(
6
)
Approved Pro

Bragg Home Services

3345 Industrial Drive
5.00(
6
)
Approved Pro
Customers say: Quick response
137 local quotes requested
57 years of experience

For over 56 years Bragg Home Services has specialized in offering residential and light commercial plumbing, heating, and air conditioning services to the residents of Sonoma, Marin, and Napa Counties. At Bragg Home Services we know that our customers expect integrity, excellence, value, and commitment. That’s why at Bragg Home Services we hire only the best people, and use only the best products, offering exceptional value, backed by our lifetime workmanship guarantee. Because at Bragg Home Services, your satisfaction is our number 1 priority.

"Very well Bragg rep was friendly and personable. I called at 9.30pm on a hot day. AC was fixed by 10.00am next morning. I was very pleased."

Doug N on September 2025

For over 56 years Bragg Home Services has specialized in offering residential and light commercial plumbing, heating, and air conditioning services to the residents of Sonoma, Marin, and Napa Counties. At Bragg Home Services we know that our customers expect integrity, excellence, value, and commitment. That’s why at Bragg Home Services we hire only the best people, and use only the best products, offering exceptional value, backed by our lifetime workmanship guarantee. Because at Bragg Home Services, your satisfaction is our number 1 priority.

"Very well Bragg rep was friendly and personable. I called at 9.30pm on a hot day. AC was fixed by 10.00am next morning. I was very pleased."

Doug N on September 2025


Avatar for New Age Heating and Cooling

New Age Heating and Cooling

Located In:
5.00(
3
)
Approved Pro

New Age Heating and Cooling

Located In:
5.00(
3
)
Approved Pro
Super Service Award
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
Emergency services offered

We have 11 years experience and specialize in all phases of heating and cooling services, installs, repairs, maintenance, and more. We pride ourselves on the quality work we provide, while delivering great customer service! Check out all the services we offer below and call -or- click to schedule a free estimate today! We specialize in repairs on heating and cooling systems Maintenance Full system replacements Heat pumps Water heaters

"Jeff has come to the rescue twice to my new build home. He came the first time in the middle of summer when the a/c would start up. It was just the fan running. He was able to repair the unit same day. Recently, the same thing happened but with our heater. The burners were not lighting up. Apparently the builders never put the cover on and they got clogged with dust and debris. He was able to get our heater working and cannot be more thankful. He was able to fix a couple of things in the attic that the builder just slapped on. I’m sure this system will not stand the test of time, especially here in Vacaville so I’ll trust New age when it’s time to replace this system"

Gustavo E on January 2024

We have 11 years experience and specialize in all phases of heating and cooling services, installs, repairs, maintenance, and more. We pride ourselves on the quality work we provide, while delivering great customer service! Check out all the services we offer below and call -or- click to schedule a free estimate today! We specialize in repairs on heating and cooling systems Maintenance Full system replacements Heat pumps Water heaters

"Jeff has come to the rescue twice to my new build home. He came the first time in the middle of summer when the a/c would start up. It was just the fan running. He was able to repair the unit same day. Recently, the same thing happened but with our heater. The burners were not lighting up. Apparently the builders never put the cover on and they got clogged with dust and debris. He was able to get our heater working and cannot be more thankful. He was able to fix a couple of things in the attic that the builder just slapped on. I’m sure this system will not stand the test of time, especially here in Vacaville so I’ll trust New age when it’s time to replace this system"

Gustavo E on January 2024


"He responded quickly, gave quote he stuck to, set up time for work and kept me informed about arrival. Was clean and neat in appearance. Did work professionally."

Carol W on June 2024

We guarantee your satisfaction, and we won’t leave until the job is done right. Our team has quality experience in this industry, and we make sure our customers are happy before we leave. Call or click to schedule an estimate today!

"He responded quickly, gave quote he stuck to, set up time for work and kept me informed about arrival. Was clean and neat in appearance. Did work professionally."

Carol W on June 2024


Avatar for Peter Levi Plumbing, Heating, Cooling, Drains

Peter Levi Plumbing, Heating, Cooling, Drains

24 Digital Dr STE 1
3.00(
13
)
Approved Pro

Peter Levi Plumbing, Heating, Cooling, Drains

24 Digital Dr STE 1
3.00(
13
)
Approved Pro
104 local quotes requested
35 years of experience

For over 35 years, for homeowners in Novato and northern California, the name Peter Levi has come to means just that — Trust. Reliable, experienced & certified premiere HVAC, all of Peter Levi technicians are some of the friendliest, most knowlegeable people you’ll ever meet! Drug screened and background checked, you can always count on a top-notch experience. We charge by the job, so you know the cost before we start. As one of the most trusted Novato and Vacaville commercial Plumbing and HVAC companies, we have worked with builders and homeowners alike for over 20 years, providing the highest quality, professional services with 100% customer satisfaction each and every time. Plus, you can always count on honest, upfront pricing with no hidden charges or fees and the confidence of knowing that a true professional is on the job! PLUMBING HEATING AIR CONDITIONING SEWER and DRAIN SERVICE and REPAIR COMMERCIAL AND SO MUCH MORE!

"It went very well; the thorough HVAC system checkup revealed some questionable component that were best suggested to be replace with new ones. I am not confident that my HVAC system is set for more that good performance going forward. I appreciated the non-pressured advice and suggestions in coming to my decisions. Thank you, Joaquin Ortiz."

Carlos G on May 2024

For over 35 years, for homeowners in Novato and northern California, the name Peter Levi has come to means just that — Trust. Reliable, experienced & certified premiere HVAC, all of Peter Levi technicians are some of the friendliest, most knowlegeable people you’ll ever meet! Drug screened and background checked, you can always count on a top-notch experience. We charge by the job, so you know the cost before we start. As one of the most trusted Novato and Vacaville commercial Plumbing and HVAC companies, we have worked with builders and homeowners alike for over 20 years, providing the highest quality, professional services with 100% customer satisfaction each and every time. Plus, you can always count on honest, upfront pricing with no hidden charges or fees and the confidence of knowing that a true professional is on the job! PLUMBING HEATING AIR CONDITIONING SEWER and DRAIN SERVICE and REPAIR COMMERCIAL AND SO MUCH MORE!

"It went very well; the thorough HVAC system checkup revealed some questionable component that were best suggested to be replace with new ones. I am not confident that my HVAC system is set for more that good performance going forward. I appreciated the non-pressured advice and suggestions in coming to my decisions. Thank you, Joaquin Ortiz."

Carlos G on May 2024


Avatar for Wolf HVAC

Wolf HVAC

8546 Larch Ave
5.00(
10
)
Approved Pro

Wolf HVAC

8546 Larch Ave
5.00(
10
)
Approved Pro
Customers say: Quick response
4 years of experience
Free onsite estimate

We've built an excellent reputation for customer satisfaction by providing quick estimates, a great attention to detail, and competitive pricing. Being a screened and approved professional gives you the peace of mind you need to allow us to give your home the attention it deserves. Call us today and let's get started!

"I wish I could give the customer service 6 stars. Communication with Robert throughout the project was great and his entire team is awesome."

Jeffrey T on March 2022

We've built an excellent reputation for customer satisfaction by providing quick estimates, a great attention to detail, and competitive pricing. Being a screened and approved professional gives you the peace of mind you need to allow us to give your home the attention it deserves. Call us today and let's get started!

"I wish I could give the customer service 6 stars. Communication with Robert throughout the project was great and his entire team is awesome."

Jeffrey T on March 2022

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Boiler Repair questions, answered by experts

Over time, a radiator can leak if turned off due to the built-up air pressure, which can cause water or coolant to leak. If your radiator leaks when it’s off, turn your whole system off and bleed the radiator, then turn it back on. If it’s still leaking, you might want to have an HVAC professional look at the issue.

Unless they are connected to the same system, boilers and water heaters will both need their own expansion tanks. The only case they wouldn’t have separate expansion tanks is if the boiler is pulling double duty and managing a heating system while also supplying hot water for a home. In which case, you may not need a hot water heater.

Since your boiler keeps you warm and provides hot water to your home, you’re likely to notice issues with heating in your living space right away. The most obvious sign that your boiler is breaking is not getting any heat or hot water. You might also hear some odd sounds coming from your boiler during operation, the flame in your gas boiler is not blue, the pressure is inconsistent, or your boiler is using more energy than it should. If you notice any of these signs, be sure to call a pro right away.

Costs depend on issue severity, parts needed, and labor rates.

There are several types of home radiators, and the most common are steam heat radiators, electric radiators, and dual-fuel radiators. Steam heat radiators are connected to a boiler. Electric radiators can operate without being connected to anything else—they just need an electrical outlet. If you have a dual-fuel radiator, you’ll see a valve at the bottom of the system with a wire coming out of it and going into a wall. These are often your towel radiators in the bathroom. The type of radiator you have will impact how you turn it on.

The Saint Helena, CA homeowners’ guide to boiler repairs

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