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    Average homeowner rating
  • Verified reviews icon1.3k+
    Verified boiler repairs reviews

Find Boiler repair pros in Sonoma

Avatar for Moore Home Services

Moore Home Services

4.71(
389
)
Approved Pro

Moore Home Services

4.71(
389
)
Approved Pro
Customers say: Super punctual
16 years of experience
Free onsite estimate

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 Bay Builders, Inc.

Bay Builders, Inc.

5.00(
3
)
Approved Pro

Bay Builders, Inc.

5.00(
3
)
Approved Pro
Super Service Award
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
32 local quotes requested

We specialize in all phases of remodeling for your home, business, bathrooms, kitchens, finishing basements, and more! We offer a diverse range of services tailored to meet the unique needs of every customer. We take a personalized approach to each project. We work closely with our clients to understand their vision, preferences, and budgetary requirements. We strive to exceed expectations by delivering exceptional service, great quality work, and professionalism on every job. Read more below on all the services we offer and contact us with any questions or to schedule a free estimate today!

"John and his team do amazing work. Built a stunning custom office space with a floor to ceiling library, custom cabinets and custom French doors that blended into our existing home design. I’ve owned a number of homes over the years and I’ve never worked with a builder more dedicated to quality and with more experience than Bay."

Peter T on February 2025

We specialize in all phases of remodeling for your home, business, bathrooms, kitchens, finishing basements, and more! We offer a diverse range of services tailored to meet the unique needs of every customer. We take a personalized approach to each project. We work closely with our clients to understand their vision, preferences, and budgetary requirements. We strive to exceed expectations by delivering exceptional service, great quality work, and professionalism on every job. Read more below on all the services we offer and contact us with any questions or to schedule a free estimate today!

"John and his team do amazing work. Built a stunning custom office space with a floor to ceiling library, custom cabinets and custom French doors that blended into our existing home design. I’ve owned a number of homes over the years and I’ve never worked with a builder more dedicated to quality and with more experience than Bay."

Peter T on February 2025


Avatar for Coastal View Builder

Coastal View Builder

4.67(
12
)
Approved Pro

Coastal View Builder

4.67(
12
)
Approved Pro
Customers say: Quick response
40 local quotes requested
6 years of experience

Look no further. Here at Coastal View Builder we specialize in Residential and Commercial Remodeling. additions, decks, doors, windows, and so much more! We offer a diverse range of services tailored to meet the unique needs of every customer. We take a personalized approach to each project. We work closely with our clients to understand their vision, preferences, and budgetary requirements. We strive to exceed expectations by delivering exceptional service, great quality work, and professionalism on every job. Read more below on all the services we offer and contact us with any questions or to schedule a free estimate today!

"We are very happy with the results and would like to give 4.5 stars if we could. They're a great company to work with and the job was fairly priced and done well. We would definitely work with CVB again. In addition to the kitchen remodel, they also did work on another house project and we were thoroughly satisfied. Our only suggestion is for the crew to be better prepared when getting to the job site. Additional time was spent collecting/buying tools and material after arriving."

Dana F on October 2025

Look no further. Here at Coastal View Builder we specialize in Residential and Commercial Remodeling. additions, decks, doors, windows, and so much more! We offer a diverse range of services tailored to meet the unique needs of every customer. We take a personalized approach to each project. We work closely with our clients to understand their vision, preferences, and budgetary requirements. We strive to exceed expectations by delivering exceptional service, great quality work, and professionalism on every job. Read more below on all the services we offer and contact us with any questions or to schedule a free estimate today!

"We are very happy with the results and would like to give 4.5 stars if we could. They're a great company to work with and the job was fairly priced and done well. We would definitely work with CVB again. In addition to the kitchen remodel, they also did work on another house project and we were thoroughly satisfied. Our only suggestion is for the crew to be better prepared when getting to the job site. Additional time was spent collecting/buying tools and material after arriving."

Dana F on October 2025


Avatar for RG Construction

RG Construction

5.00(
4
)
Approved Pro

RG Construction

5.00(
4
)
Approved Pro
Free onsite estimate
Emergency services offered

We have been in the construction industry for over 10 years. From building ADUs, high-end kitchen remodels, bathroom remodels and home extensions, we have done just about everything under general construction. Our company prioritizes safety, quality and transparency.

"Me and my wife decided recently to get our kitchen remolded. After some time searching for the right guys to do the job we settled on RG Construction. Richard, who is the owner, is a great guy and super informative. He never left any question unanswered or left us uncertain about anything. His crew works quick, and they pay attention to the tiniest detail. They absolutely are worth every dollar and I would recommend RG Construction to any homeowner, and I for sure will be giving them a call back for any work I need done in the future. Me and my wife are absolutely in love with our remodel."

Jesse O on November 2025

We have been in the construction industry for over 10 years. From building ADUs, high-end kitchen remodels, bathroom remodels and home extensions, we have done just about everything under general construction. Our company prioritizes safety, quality and transparency.

"Me and my wife decided recently to get our kitchen remolded. After some time searching for the right guys to do the job we settled on RG Construction. Richard, who is the owner, is a great guy and super informative. He never left any question unanswered or left us uncertain about anything. His crew works quick, and they pay attention to the tiniest detail. They absolutely are worth every dollar and I would recommend RG Construction to any homeowner, and I for sure will be giving them a call back for any work I need done in the future. Me and my wife are absolutely in love with our remodel."

Jesse O on November 2025


Avatar for Sonoma County Heating and Air LLC

Sonoma County Heating and Air LLC

5.00(
6
)
Approved Pro

Sonoma County Heating and Air LLC

5.00(
6
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
10 years of experience

We take great pride in our experience, expertise, quality, and customer service that we provide to meet the consumer's needs. It is our mission to provide excellent workmanship and complete customer satisfaction from start to completion of a project. In order to understand the needs and expectations of our customers, we take great care to work and communicate with every customer in a professional manner. Our reputation is based on service, safety, and quality, regardless of how large or small the job.

"Kenta epitomizes professionalism and should be an example to other contractors. He is fair, honest, punctual and great at communicating. Though my first project with him was relatively small, we are very likely to hire him to replace our entire home HVAC system. Thanks, Kenta!"

Jason T on September 2022

We take great pride in our experience, expertise, quality, and customer service that we provide to meet the consumer's needs. It is our mission to provide excellent workmanship and complete customer satisfaction from start to completion of a project. In order to understand the needs and expectations of our customers, we take great care to work and communicate with every customer in a professional manner. Our reputation is based on service, safety, and quality, regardless of how large or small the job.

"Kenta epitomizes professionalism and should be an example to other contractors. He is fair, honest, punctual and great at communicating. Though my first project with him was relatively small, we are very likely to hire him to replace our entire home HVAC system. Thanks, Kenta!"

Jason T on September 2022


Avatar for Bowen Plumbing

Bowen Plumbing

4.92(
6
)
Approved Pro

Bowen Plumbing

4.92(
6
)
Approved Pro
Customers say: Quick response
8 years of experience
Free onsite estimate

With over 20 years of experience as a plumber, Bowen Plumbing is who you need to take care of your home. We handle everything from the initial consultation to making sure your property looks perfect every single time. We will always treat your property as we would treat our own, and you will be surprised how simple and easy our team will make the whole process seem. Give our team a call today. We're looking forward to working with you!

"I hired this company to install a water heater. It was dead so fast very nice job. Iâ ve had no problems with the work that they did. I recommend him highly to anyone because heâ s very nice pleasant does a great job Iâ d higher of 100 times over."

Annette G on May 2023

With over 20 years of experience as a plumber, Bowen Plumbing is who you need to take care of your home. We handle everything from the initial consultation to making sure your property looks perfect every single time. We will always treat your property as we would treat our own, and you will be surprised how simple and easy our team will make the whole process seem. Give our team a call today. We're looking forward to working with you!

"I hired this company to install a water heater. It was dead so fast very nice job. Iâ ve had no problems with the work that they did. I recommend him highly to anyone because heâ s very nice pleasant does a great job Iâ d higher of 100 times over."

Annette G on May 2023


Avatar for Wolf HVAC

Wolf HVAC

5.00(
10
)
Approved Pro

Wolf HVAC

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


Pedro Galvan Plumbing, Inc.

4.85(
17
)
Approved Pro

Pedro Galvan Plumbing, Inc.

4.85(
17
)
Approved Pro
Customers say: Quality work
Recommended by 94% of Angi customers
Recommended by 94% of HomeAdvisor customers
21 years of experience

Pedro Galvan Ramirez Plumbing, Inc., is the premier plumbing contractor in the Richmond Area. We finish every job to the customer's standards. Call today for a free quote!

"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."

Nicola S on July 2025

Pedro Galvan Ramirez Plumbing, Inc., is the premier plumbing contractor in the Richmond Area. We finish every job to the customer's standards. Call today for a free quote!

"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."

Nicola S on July 2025


Avatar for Rock Solid Drains

Rock Solid Drains

4.93(
106
)
Approved Pro

Rock Solid Drains

4.93(
106
)
Approved Pro
Customers say: Quality work
Recommended by 98% of Angi customers
Recommended by 98% of HomeAdvisor customers
6 years of experience

It can be a daunting task looking for not only the right contractor for your job, but also the right contractor for you. We completely understand what you are going through. We know every customer has different desires, different needs, and different schedules. We are not only here to turn your ideas into reality, but to make it a memorable experience every step of the way. Call us right now, no matter where you are in the planning process.

"Very pleasant and knowledgeable"

Linda R on September 2024

It can be a daunting task looking for not only the right contractor for your job, but also the right contractor for you. We completely understand what you are going through. We know every customer has different desires, different needs, and different schedules. We are not only here to turn your ideas into reality, but to make it a memorable experience every step of the way. Call us right now, no matter where you are in the planning process.

"Very pleasant and knowledgeable"

Linda R on September 2024


Avatar for Frank's Water Heater Company

Frank's Water Heater Company

4.94(
27
)
Approved Pro

Frank's Water Heater Company

4.94(
27
)
Approved Pro
Customers say: Quick response
Recommended by 96% of Angi customers
Recommended by 96% of HomeAdvisor customers
7 years of experience

Welcome to, Frank's Water Heater Company, proudly servicing California and the surrounding areas. Our goal is to complete your project to perfection. We look forward to building long lasting relationships with the customers that we serve. We look forward to serving you. Call us today! You will not be disappointed.

"We lost our hot water late on a Friday. I called Trevor, sent him a few photos of my old equipment, and he arrived at my house an hour later, removing the old water heater and making preparations for the new installation. On Saturday morning, he arrived bright and early and installed the new water heater and made all the necessary upgrades in compliance with current building codes. Trevor was thorough, professional, conscientious, and highly skilled--and the quality of his work, from the premium parts to the final fit and finish, is truly outstanding. He did everything possible to get us back into hot water as quickly as possible, and he's easy to work with, too. Franks Water Heaters is, quite simply, the best in the business."

Joseph C on March 2025

Welcome to, Frank's Water Heater Company, proudly servicing California and the surrounding areas. Our goal is to complete your project to perfection. We look forward to building long lasting relationships with the customers that we serve. We look forward to serving you. Call us today! You will not be disappointed.

"We lost our hot water late on a Friday. I called Trevor, sent him a few photos of my old equipment, and he arrived at my house an hour later, removing the old water heater and making preparations for the new installation. On Saturday morning, he arrived bright and early and installed the new water heater and made all the necessary upgrades in compliance with current building codes. Trevor was thorough, professional, conscientious, and highly skilled--and the quality of his work, from the premium parts to the final fit and finish, is truly outstanding. He did everything possible to get us back into hot water as quickly as possible, and he's easy to work with, too. Franks Water Heaters is, quite simply, the best in the business."

Joseph C on March 2025

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Boiler Repair questions, answered by experts

It’s not customary to tip HVAC technicians, and most professionals won’t expect it. However, it’s a nice way of showing your appreciation for the work they do, especially if they come out in inclement weather or on a weekend or holiday to fix an emergency issue if your heat or AC goes out in extreme temperatures. A good tip would be between 10% to 20% of the total bill, depending on how above and beyond the tech goes for your repair and on the total cost of your HVAC repair or service. For something like a routine tune-up or scheduled maintenance, tips aren’t expected.

Regular maintenance includes annual inspections, filter changes, and checking for leaks or pressure inconsistencies to improve efficiency and longevity.

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.

NATE (North American Technician Excellence) certification is not legally required for HVAC technicians in most areas, but hiring a professional with this certification is highly recommended. NATE-certified technicians demonstrated their expertise and proficiency in different types of HVAC systems, offering assurance of quality service. It's a voluntary certification, yet it indicates a commitment to professionalism and ongoing training. Choosing a NATE-certified technician often means you're working with someone who is up-to-date on industry standards and best practices, which can lead to better service, energy efficiency, and long-term cost savings.

Regular inspections, filter replacements, and professional tune-ups keep the system running efficiently.

The Sonoma, CA homeowners’ guide to boiler repairs

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

What do you need done? We’ll find top pros.
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