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TRUSTED BY WINDSOR, CA HOMEOWNERS

  • Average homeowner rating star icon4.3
    Average homeowner rating
  • Verified reviews icon281
    Verified boiler repairs reviews

Find Boiler repair pros in Windsor

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 Coastal View Builder

Coastal View Builder

4.67(
12
)
Approved Pro

Coastal View Builder

4.67(
12
)
Approved Pro
Customers say: Quick response
38 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 MAC Plumbing

MAC Plumbing

New on AngiNew on Angi
Approved Pro

MAC Plumbing

New on AngiNew on Angi
Approved Pro
2 years of experience

MAC PLUMBING is a locally owned and operated company that values honesty and integrity in all aspects of our business. Our dedicated team of professionals have over 15 years of hands on experience, to provide innovative ideas and suggestions tailored to your projects. Our services are customized to your individual needs, paying close attention to the details of each project that we are involved with. Please feel free to contact us today!

MAC PLUMBING is a locally owned and operated company that values honesty and integrity in all aspects of our business. Our dedicated team of professionals have over 15 years of hands on experience, to provide innovative ideas and suggestions tailored to your projects. Our services are customized to your individual needs, paying close attention to the details of each project that we are involved with. Please feel free to contact us today!


Diversified Services - Unlicensed Contractor

New on AngiNew on Angi
Approved Pro

Diversified Services - Unlicensed Contractor

New on AngiNew on Angi
Approved Pro
9 years of experience
Free onsite estimate

At Diversified Services, we are fair, and honest. We do quality work, and are well rounded in multiple aspects of the home. We do quality work, and take pride in their work. We look forward to hearing from you. Call us today!

At Diversified Services, we are fair, and honest. We do quality work, and are well rounded in multiple aspects of the home. We do quality work, and take pride in their work. We look forward to hearing from you. Call us today!


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


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 Family First Service Plumbing

Family First Service Plumbing

4.86(
11
)
Approved Pro

Family First Service Plumbing

4.86(
11
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
6 years of experience

We pride our company on reliability, great communication, integrity, and quality work. We are experts in our trade and will do our best to keep you as educated as we can on your particular task or project. We look forward to earning your business! Book with us online or feel free to give us a call today!

"Couldn't have been happier with our service. We live out in the country, and we had a disposal leak AND an old reverse osmosis filter. Andy researched and found our old filtration system parts, and had our new disposal ready. In the end, everything was done professionally and on time. I could not recommend Family First any more highly!"

Jeff N on June 2020

We pride our company on reliability, great communication, integrity, and quality work. We are experts in our trade and will do our best to keep you as educated as we can on your particular task or project. We look forward to earning your business! Book with us online or feel free to give us a call today!

"Couldn't have been happier with our service. We live out in the country, and we had a disposal leak AND an old reverse osmosis filter. Andy researched and found our old filtration system parts, and had our new disposal ready. In the end, everything was done professionally and on time. I could not recommend Family First any more highly!"

Jeff N on June 2020


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


"Showed up on time, did a great job at a reasonable price and had a great attitude."

Rusty S on November 2025

At North West Plumbing, we sustain our business on quality and integrity. We are experts in our trade, and our commitment to quality shows from beginning to end of your project. We look forward to earning your business.

"Showed up on time, did a great job at a reasonable price and had a great attitude."

Rusty S on November 2025

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Boiler Repair questions, answered by experts

If you hear your radiator clanking even when it’s turned off, it’s typically because there’s trapped water or air in the system, causing a pressure buildup. When you hear significant clanking, popping, crackling, or banging in a radiator that’s turned off, you’ll want to bleed the pipes or call in an HVAC specialist to deal with the problem (and prevent it from happening in the future).

It can be difficult to determine the cause of a coolant leak unless you have the unit inspected by a certified professional. Most coolant leaks are caused by wear and tear on seals and joints. This typically happens five years after a unit is installed. Additionally, faulty or worn compressors, evaporator coils, and condenser coils can also cause leaks.

You’ll want to bleed your radiators at least once per year, typically in the fall before you plan to turn on the heat. Bleeding a radiator is a regular part of your heating system maintenance, and you’ll need to do this regularly to keep these units running efficiently. You should also bleed radiators any time they start making noise, like gurgling, hissing, or banging.

With proper maintenance, boilers last for around 15 years on average. A cast iron boiler may last longer, over 20 years, but you should always consider the efficiency of older boilers and opt to replace an old one if it’s significantly lower than newer, high-efficiency boilers. Otherwise, you’ll be spending more on your utility bills each month.

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.

The Windsor, CA homeowners’ guide to boiler repairs

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