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    Verified boiler repairs reviews

Find Boiler repair pros in Denair

Avatar for Mainline Plumbing Inc.

Mainline Plumbing Inc.

18332 Campbell Ave
4.79(
28
)
Approved Pro

Mainline Plumbing Inc.

18332 Campbell Ave
4.79(
28
)
Approved Pro
Customers say: Quick response
Recommended by 96% of Angi customers
Recommended by 96% of HomeAdvisor customers
129 local quotes requested

Reach out to Mainline Plumbing Inc. for all of your plumbing service needs in Escalon and Modesto. The plumbing professionals are the best in the local and surrounding areas when it comes to all kinds of services. From small home installations to large scale repairs, customers know that they can count on the technicians to deliver professional, prompt, and trustworthy plumbing solutions that last. It is widely understood that finding a plumber that’s qualified, experienced, honest, and family-friendly is very difficult. Fortunately, the Mainline Plumbing team is ready to tackle any plumbing challenges that they face. With the use of advanced tools, top-quality materials, and over 28 years of plumbing experience, you can trust the our plumbers to handle all of your plumbing needs.

"Miguel and his team were great! They were able to replace a water heater same day , and now my tenants can enjoy their holiday with hot water! I will hire again!"

Rene P on November 2024

Reach out to Mainline Plumbing Inc. for all of your plumbing service needs in Escalon and Modesto. The plumbing professionals are the best in the local and surrounding areas when it comes to all kinds of services. From small home installations to large scale repairs, customers know that they can count on the technicians to deliver professional, prompt, and trustworthy plumbing solutions that last. It is widely understood that finding a plumber that’s qualified, experienced, honest, and family-friendly is very difficult. Fortunately, the Mainline Plumbing team is ready to tackle any plumbing challenges that they face. With the use of advanced tools, top-quality materials, and over 28 years of plumbing experience, you can trust the our plumbers to handle all of your plumbing needs.

"Miguel and his team were great! They were able to replace a water heater same day , and now my tenants can enjoy their holiday with hot water! I will hire again!"

Rene P on November 2024


Ed Sewer and Drain

5.00(
18
)
Approved Pro

Ed Sewer and Drain

5.00(
18
)
Approved Pro
Customers say: True professional
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
88 local quotes requested

At Ed Sewer & Drain, we specialize in unclogging sewer and drain, faucet replacement, garbage disposal, water leak repair, water heater repair, home plumbing inspection, rain gutter cleaning, and others. Price matching Senior Citizens Discount Military Discount Over 30 years' experience on drain cleaning and plumbing working with major companies. Now owner-operated and no overhead cost so customers can save money.

"Ed did an excellent job installing an under mount sink, garbage disposal, and new kitchen faucet. He is respectful, efficient, and cleans up the area he was working in."

Dana J on August 2025

At Ed Sewer & Drain, we specialize in unclogging sewer and drain, faucet replacement, garbage disposal, water leak repair, water heater repair, home plumbing inspection, rain gutter cleaning, and others. Price matching Senior Citizens Discount Military Discount Over 30 years' experience on drain cleaning and plumbing working with major companies. Now owner-operated and no overhead cost so customers can save money.

"Ed did an excellent job installing an under mount sink, garbage disposal, and new kitchen faucet. He is respectful, efficient, and cleans up the area he was working in."

Dana J on August 2025


Avatar for M C M Plumbing

M C M Plumbing

335 Grogan Avenue, Suite G
New on AngiNew on Angi
Approved Pro

M C M Plumbing

335 Grogan Avenue, Suite G
New on AngiNew on Angi
Approved Pro
10 years of experience
Warranties offered

MCM Plumbing is 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.

MCM Plumbing is 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.


"On 9/29/24, Justin from Noble came out to install a toilet flange riser. He looked at it and told me it would be between $450 and $550. I felt that was a very high price but a toilet is a necessity. It took him 2 hours from start to finish, but over an hour of that time, he was out buying parts at a Home Depot that is only 7 miles away. I was surprised that he didnâ t have parts with him considering this is a very common plumbing problem, plus I told them what I needed over the phone when I made the appointment and specifically said that I was telling them so he could show up with parts. When he said he was done, I looked at the toilet and noticed there were no caps on the bolts that hold it down. I asked if he was going to put some on, he said that most of the time he doesnâ t. He said he would put some on if I wanted, I told him I did. Who prefers the bolts showing on their toilet??? When he was done, he advised that the amount due was $490.00. I asked what their labor rate is, he said $250/hr. It seemed really high so I asked if it was because it was Saturday. He said â No, thatâ s our regular rateâ . So I was charged for two hours of which most of that time was spent on his trip to Home Depot 7 miles away. I paid him. As he processed the transaction on his phone, I asked if I would receive a detailed receipt. He assured me I would receive a detailed receipt in an email as soon as he finished creating it. It is now a day later and I have not received anything. Very disappointing. So in short: 1) So far the toilet is functional. 2) Justin was a pretty nice guy. 3) Price for the job was awfully high. I feel the job should have been 1/2 that amount because he should have had the necessary parts. I feel gouged. 4) The worst part is that I have not received a receipt for my $490.00!!"

Joel M on September 2024

Welcome to Noble Plumbing, Inc. Proudly serving the entire Central Valley. We provide the highest quality of service and hold customer satisfaction as our highest priority. Give us a call today and lets get started!

"On 9/29/24, Justin from Noble came out to install a toilet flange riser. He looked at it and told me it would be between $450 and $550. I felt that was a very high price but a toilet is a necessity. It took him 2 hours from start to finish, but over an hour of that time, he was out buying parts at a Home Depot that is only 7 miles away. I was surprised that he didnâ t have parts with him considering this is a very common plumbing problem, plus I told them what I needed over the phone when I made the appointment and specifically said that I was telling them so he could show up with parts. When he said he was done, I looked at the toilet and noticed there were no caps on the bolts that hold it down. I asked if he was going to put some on, he said that most of the time he doesnâ t. He said he would put some on if I wanted, I told him I did. Who prefers the bolts showing on their toilet??? When he was done, he advised that the amount due was $490.00. I asked what their labor rate is, he said $250/hr. It seemed really high so I asked if it was because it was Saturday. He said â No, thatâ s our regular rateâ . So I was charged for two hours of which most of that time was spent on his trip to Home Depot 7 miles away. I paid him. As he processed the transaction on his phone, I asked if I would receive a detailed receipt. He assured me I would receive a detailed receipt in an email as soon as he finished creating it. It is now a day later and I have not received anything. Very disappointing. So in short: 1) So far the toilet is functional. 2) Justin was a pretty nice guy. 3) Price for the job was awfully high. I feel the job should have been 1/2 that amount because he should have had the necessary parts. I feel gouged. 4) The worst part is that I have not received a receipt for my $490.00!!"

Joel M on September 2024


Avatar for Elite Heating and Air LLC

Elite Heating and Air LLC

1420 Peppertree Lane
5.00(
10
)
Approved Pro

Elite Heating and Air LLC

1420 Peppertree Lane
5.00(
10
)
Approved Pro
80 local quotes requested
9 years of experience

Elite Heating and Air LLC is a locally owned and operated company that values honesty and integrity in all aspects of our business. Our dedicated team of professionals have 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. Here at Elite we stand behind quality workmanship,Please feel free to contact us today!

"Jorge, Angel, Ishmael, and George were fantastic. Jorge was honest and straight in the initial conversations. He gave me multiple options for systems and their functionality. When I made my selection I was given a very fair price for the work that was to be done. He was very helpful in acquiring good financing that bested my Credit Union and Bank. The work was done quickly with great attention to the fine details. I now have an efficient and functional HVAC unit. If you need repairs or a replacement HVAC system you could not do better than selecting Elite Heating and Air for your job. I'm telling all my friends that if they need any work done - "I've got a guy"..."

Gary S on October 2025

Elite Heating and Air LLC is a locally owned and operated company that values honesty and integrity in all aspects of our business. Our dedicated team of professionals have 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. Here at Elite we stand behind quality workmanship,Please feel free to contact us today!

"Jorge, Angel, Ishmael, and George were fantastic. Jorge was honest and straight in the initial conversations. He gave me multiple options for systems and their functionality. When I made my selection I was given a very fair price for the work that was to be done. He was very helpful in acquiring good financing that bested my Credit Union and Bank. The work was done quickly with great attention to the fine details. I now have an efficient and functional HVAC unit. If you need repairs or a replacement HVAC system you could not do better than selecting Elite Heating and Air for your job. I'm telling all my friends that if they need any work done - "I've got a guy"..."

Gary S on October 2025


Avatar for St. Clair Plumbing

St. Clair Plumbing

521 Redwood Ave
4.97(
45
)
Approved Pro

St. Clair Plumbing

521 Redwood Ave
4.97(
45
)
Approved Pro
Customers say: True professional
30 years of experience
Warranties offered

With years of experience serving the area, we are your solution for all your water treatment needs .We take great pride in our extreme professionalism, timeliness and superior customer service on every job. We make sure to develop a lasting relationship so that the next time service is needed there will be no question on who to call. Check out our 5 star reviews from happy customers! Call us today so we can discuss your needs and make a plan that fits your budget. Your satisfaction is guaranteed!

"It was great that Bryan was prompt! He’s very personable and professional. Thanks!"

John F on October 2025

With years of experience serving the area, we are your solution for all your water treatment needs .We take great pride in our extreme professionalism, timeliness and superior customer service on every job. We make sure to develop a lasting relationship so that the next time service is needed there will be no question on who to call. Check out our 5 star reviews from happy customers! Call us today so we can discuss your needs and make a plan that fits your budget. Your satisfaction is guaranteed!

"It was great that Bryan was prompt! He’s very personable and professional. Thanks!"

John F on October 2025


ARMSTRONG REFRIGERATION

3040 LINFIELD CT
New on AngiNew on Angi
Approved Pro

ARMSTRONG REFRIGERATION

3040 LINFIELD CT
New on AngiNew on Angi
Approved Pro
2 years of experience
Free onsite estimate

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.

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.


Avatar for Top Tier Plumbing Inc.

Top Tier Plumbing Inc.

220 Yuba Ridge Lane
4.66(
19
)
Approved Pro

Top Tier Plumbing Inc.

220 Yuba Ridge Lane
4.66(
19
)
Approved Pro
Customers say: Quick response
Recommended by 94% of Angi customers
Recommended by 94% of HomeAdvisor customers
36 local quotes requested

Top Tier Plumbing Inc. is a family-owned company proudly serving Modesto and the Central Valley. We specialize in residential and commercial plumbing, including whole-house repipes, water heaters, trenchless sewer repairs, leak detection, and drain cleaning. Our licensed team is known for fast response times, honest pricing, and quality craftsmanship. We offer 24/7 emergency services, financing options, and stand behind our work with strong customer-first warranties. Whether it's a small repair or a major project, Top Tier delivers reliable, top-quality service every time. Let us show you why we're one of the highest-rated plumbing companies in the area!

"Nothing"

Linda W on September 2023

Top Tier Plumbing Inc. is a family-owned company proudly serving Modesto and the Central Valley. We specialize in residential and commercial plumbing, including whole-house repipes, water heaters, trenchless sewer repairs, leak detection, and drain cleaning. Our licensed team is known for fast response times, honest pricing, and quality craftsmanship. We offer 24/7 emergency services, financing options, and stand behind our work with strong customer-first warranties. Whether it's a small repair or a major project, Top Tier delivers reliable, top-quality service every time. Let us show you why we're one of the highest-rated plumbing companies in the area!

"Nothing"

Linda W on September 2023


Avatar for Cosmic Comfort

Cosmic Comfort

3564 Atwater Blvd
4.89(
92
)
Approved Pro

Cosmic Comfort

3564 Atwater Blvd
4.89(
92
)
Approved Pro
Customers say: True professional
Recommended by 94% of Angi customers
Recommended by 94% of HomeAdvisor customers
46 local quotes requested

Cosmic Comfort is a locally owned and operated company that values honesty and integrity in all aspects of our business. Our dedicated team of professionals have 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!

"What a friendly and affordable company to go with. They were professional all the way through and their employees are hardworking and respectful of your property. I highly recommend them for any of your electrical needs."

John B on June 2025

Cosmic Comfort is a locally owned and operated company that values honesty and integrity in all aspects of our business. Our dedicated team of professionals have 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!

"What a friendly and affordable company to go with. They were professional all the way through and their employees are hardworking and respectful of your property. I highly recommend them for any of your electrical needs."

John B on June 2025


"They are thorough, prompt, and courteous."

Maria B on October 2023

With 13 years of experience, The Air Doctor Heating & Air is the company you need to take care of your home or business. We offer quality work at an affordable rate. Give The Air Doctor Heating & Air a call today!

"They are thorough, prompt, and courteous."

Maria B on October 2023

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Boiler Repair questions, answered by experts

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.

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.

Most repairs take 2-6 hours, but extensive repairs or part replacements may require a full day or more, depending on availability.

Always consult your manual for specific pressure numbers. Many expansion tanks come pre-pressurized at a specific PSI range, anywhere from 12 to 40 PSI, designed for a range of home boilers. You should not have to pressurize an expansion tank yourself, only the boiler system. If your system has a tank that needs to be manually pressurized, this is generally a job for professionals and their tools.

Probably not. Moving a boiler to a new location is a very different prospect from replacing it in the same spot, and significantly more expensive. Plus, boilers are typically carefully positioned in proximity to pipes and radiators when installed. Homeowners may want to move boilers to free up space, prevent freezing problems that have happened in winter, or solve a noise issue—but it’s a much more costly proposition.

The Denair, CA homeowners’ guide to boiler repairs

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