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Find Boiler repair pros in Concord

Avatar for Sila Heating, Cooling, Plumbing and Electrical

Sila Heating, Cooling, Plumbing and Electrical

4.54(
5,210
)
Approved Pro

Sila Heating, Cooling, Plumbing and Electrical

4.54(
5,210
)
Approved Pro
Customers say: Super punctual
620 local quotes requested
36 years of experience

Live Your Most Comfortable Life with a Company You Trust. We offer Same Day Service and Next Day Installation! Sila has been the center of delighting homeowners since 1989, with our team of engineers, certified technicians, and system designers that are proud to deliver the highest level of expertise in the HVAC industry. Whether it’s a repair, replacement, installation, or service, we have an unwavering commitment to keeping you and your family comfortable and safe — season after season. We guarantee satisfaction and are proud to have earned over 7,000 “A” ratings on Angie’s List and its prestigious Super Service Award!

"Great, as always. Sila is outstanding. We have a service contract with them for our furnace and AC and they keep them in tip-top shape. And when we have an urgent or emergency situation (heating, cooling, plumbing, electrical), they're who we call."

Jonathan P on November 2025

Live Your Most Comfortable Life with a Company You Trust. We offer Same Day Service and Next Day Installation! Sila has been the center of delighting homeowners since 1989, with our team of engineers, certified technicians, and system designers that are proud to deliver the highest level of expertise in the HVAC industry. Whether it’s a repair, replacement, installation, or service, we have an unwavering commitment to keeping you and your family comfortable and safe — season after season. We guarantee satisfaction and are proud to have earned over 7,000 “A” ratings on Angie’s List and its prestigious Super Service Award!

"Great, as always. Sila is outstanding. We have a service contract with them for our furnace and AC and they keep them in tip-top shape. And when we have an urgent or emergency situation (heating, cooling, plumbing, electrical), they're who we call."

Jonathan P on November 2025


Avatar for NETR Inc

NETR Inc

4.79(
76
)
Approved Pro

NETR Inc

4.79(
76
)
Approved Pro
Customers say: Super punctual
Recommended by 93% of Angi customers
Recommended by 93% of HomeAdvisor customers
239 local quotes requested

For emergency services, please call 781-933-6387. N.E.T.R., Inc. is here to help homeowners install the best heating and cooling systems that fits their needs. Since 1989, we’ve installed heating and cooling systems in Boston and its surrounding areas, tackling tough problems that our clients face. Our goal is to ensure our clients have energy efficient, quiet, reliable systems so they can live their lives to the fullest both at home and at work. Our dedication to our customers’ needs is what drives us each and every day. Our approach to temperature control and comfort has helped us become one of the most respected names in heating, cooling, and refrigeration in New England

"Before installing a mini-split, the sales person told me that I'd need to cut down an interior shelf to a specific height. I paid a handyman $400 to do exactly what the sales person instructed. Later on, N.E.T.R. came and did the installation; however, AFTER the installation, a technician told me that they hadn't accounted for the vent opening and closing and that the shelf would need to be further cut down. As you can imagine, this type of service is rather ridiculous. If they knew that the shelf would need further cutting, they should have NOT installed the unit. I have called N.E.T.R. six (6) times in three weeks, and no one has called me back about this issue. After paying for the unit and for a handyman, it's ridiculous that I have AC that is compromised because no one with the company thought to properly measure the space so that the work by the handyman could be done once. At this point, I'd like for N.E.T.R. to take care of this for me."

Linda O on June 2025

For emergency services, please call 781-933-6387. N.E.T.R., Inc. is here to help homeowners install the best heating and cooling systems that fits their needs. Since 1989, we’ve installed heating and cooling systems in Boston and its surrounding areas, tackling tough problems that our clients face. Our goal is to ensure our clients have energy efficient, quiet, reliable systems so they can live their lives to the fullest both at home and at work. Our dedication to our customers’ needs is what drives us each and every day. Our approach to temperature control and comfort has helped us become one of the most respected names in heating, cooling, and refrigeration in New England

"Before installing a mini-split, the sales person told me that I'd need to cut down an interior shelf to a specific height. I paid a handyman $400 to do exactly what the sales person instructed. Later on, N.E.T.R. came and did the installation; however, AFTER the installation, a technician told me that they hadn't accounted for the vent opening and closing and that the shelf would need to be further cut down. As you can imagine, this type of service is rather ridiculous. If they knew that the shelf would need further cutting, they should have NOT installed the unit. I have called N.E.T.R. six (6) times in three weeks, and no one has called me back about this issue. After paying for the unit and for a handyman, it's ridiculous that I have AC that is compromised because no one with the company thought to properly measure the space so that the work by the handyman could be done once. At this point, I'd like for N.E.T.R. to take care of this for me."

Linda O on June 2025


Avatar for Atlantic Heating & Air Conditioning

Atlantic Heating & Air Conditioning

4.15(
140
)
Approved Pro

Atlantic Heating & Air Conditioning

4.15(
140
)
Approved Pro
Customers say: Quality work
62 local quotes requested
63 years of experience

Founded in 1962, Atlantic Heating & Air Conditioning is a family owned and operated company, ready to service you in the Brookline area. We always stand by our work, and our exceptional customer service. Our long term, extremely proficient employees are ready to assist you with any Heating or Air conditioning services. Call us today!

"Very well, above and beyond the call of duty."

Karen S on January 2023

Founded in 1962, Atlantic Heating & Air Conditioning is a family owned and operated company, ready to service you in the Brookline area. We always stand by our work, and our exceptional customer service. Our long term, extremely proficient employees are ready to assist you with any Heating or Air conditioning services. Call us today!

"Very well, above and beyond the call of duty."

Karen S on January 2023


Avatar for Cotti-Johnson Heating-Cooling-Electrical

Cotti-Johnson Heating-Cooling-Electrical

4.68(
155
)
Approved Pro

Cotti-Johnson Heating-Cooling-Electrical

4.68(
155
)
Approved Pro
Customers say: Super punctual
Recommended by 90% of Angi customers
Recommended by 90% of HomeAdvisor customers
947 local quotes requested

Experiencing issues with your heating, air conditioning, plumbing, or electrical systems? Cotti-Johnson is your reliable one-stop shop for all home comfort needs. From simple fixes to large-scale projects, our professional team handles everything with honesty and expertise. We offer 24/7 emergency services and specialized design services for landscape and indoor lighting. Trust us for top-notch, efficient, and transparent service. Visit our website at callcotti.com or call us at (833) 826-8844 to see how we can improve your home's comfort and efficiency.

"Happy with the work, and the customer service. Will definitely call on them for future work."

Fran P on June 2025

Experiencing issues with your heating, air conditioning, plumbing, or electrical systems? Cotti-Johnson is your reliable one-stop shop for all home comfort needs. From simple fixes to large-scale projects, our professional team handles everything with honesty and expertise. We offer 24/7 emergency services and specialized design services for landscape and indoor lighting. Trust us for top-notch, efficient, and transparent service. Visit our website at callcotti.com or call us at (833) 826-8844 to see how we can improve your home's comfort and efficiency.

"Happy with the work, and the customer service. Will definitely call on them for future work."

Fran P on June 2025


Avatar for Coen Construction

Coen Construction

4.25(
12
)
Approved Pro

Coen Construction

4.25(
12
)
Approved Pro
Customers say: Terrific value
105 local quotes requested
14 years of experience

We are a full service residential construction and remodeling company. Our goal is to exceed all of our clients expectations through exceptional customer service and quality craftsmanship. We work with some of the best tradesmen in the industry to deliver a quality finished product. From deck and porch builds to siding and windows, we can do it all. Contact us for an estimate on your project today! Check out our instagram for photos and updates @coenconstruction

"I recently hired Coen Brothers Construction on a thorough bathroom renovation, and the outcome was outstanding. Their quality was excellent, and I am delighted with the final result. Their sub-contractors were also great and worked at the same high standards as the Coen Brothers. Although we faced some communication issues at the outset, we eventually worked through them, and it significantly improved throughout the project. They paid attention to detail; when my project manager saw me stripping the trim for reuse, they recommended buying new trim and a lumber yard to get it. And it makes a big difference having new trim with clean, sharp lines. Their tile work took longer than expected, but the miter cuts the trim cuts, and the finish is excellent. They were consistently punctual, respectful of my home, and very tidy - tidying up at the end of each day. While the project took longer than anticipated, the reasonable cost and the team's meticulous attention to detail compensated for it. Coen Brothers Construction also expertly handled all necessary permits and inspections, keeping me informed every step of the way. Overall, I am satisfied with their work and would hire them again for my next project."

Matthew W on May 2023

We are a full service residential construction and remodeling company. Our goal is to exceed all of our clients expectations through exceptional customer service and quality craftsmanship. We work with some of the best tradesmen in the industry to deliver a quality finished product. From deck and porch builds to siding and windows, we can do it all. Contact us for an estimate on your project today! Check out our instagram for photos and updates @coenconstruction

"I recently hired Coen Brothers Construction on a thorough bathroom renovation, and the outcome was outstanding. Their quality was excellent, and I am delighted with the final result. Their sub-contractors were also great and worked at the same high standards as the Coen Brothers. Although we faced some communication issues at the outset, we eventually worked through them, and it significantly improved throughout the project. They paid attention to detail; when my project manager saw me stripping the trim for reuse, they recommended buying new trim and a lumber yard to get it. And it makes a big difference having new trim with clean, sharp lines. Their tile work took longer than expected, but the miter cuts the trim cuts, and the finish is excellent. They were consistently punctual, respectful of my home, and very tidy - tidying up at the end of each day. While the project took longer than anticipated, the reasonable cost and the team's meticulous attention to detail compensated for it. Coen Brothers Construction also expertly handled all necessary permits and inspections, keeping me informed every step of the way. Overall, I am satisfied with their work and would hire them again for my next project."

Matthew W on May 2023


We pride ourselves on the quality work we provide, while delivering great customer service. Check out our services offered and call or click to schedule an estimate today!


Avatar for Maize Restoration & Remodeling

Maize Restoration & Remodeling

4.21(
19
)
Approved Pro

Maize Restoration & Remodeling

4.21(
19
)
Approved Pro
Customers say: Super punctual
44 local quotes requested
18 years of experience

Maize Restoration & Remodeling is an organization providing various services from remodeling bathrooms, kitchens, and basements, to building decks and replacing windows/doors. The organization consist of skilled and ambitious craftsmen dedicated to providing unparalleled customer service and quality workmanship. The organization commits to maintaining professionalism and integrity in every facet of our work to ensure exceptional results and an exceptional experience.

"The initial build went reasonably well. We did find problems which they did come back and fix. I noticed a railing support that was cracked. I was told that I must of done it, that was that. The plugs that cover the screw holes in the stairs are falling out. I looked for some at Home Depot, but couldn't find the right color. I still had Chase's cell #, so I texted him and asked if he could send me some plugs, and I would do it myself. No response. Tried again the next day, still no response. I'm not surprised. Aging the build was decent, price was higher than most. Now that nearly 2 years have gone by, and customer service should be anticipated, nothing. Never again."

Lou F on July 2025

Maize Restoration & Remodeling is an organization providing various services from remodeling bathrooms, kitchens, and basements, to building decks and replacing windows/doors. The organization consist of skilled and ambitious craftsmen dedicated to providing unparalleled customer service and quality workmanship. The organization commits to maintaining professionalism and integrity in every facet of our work to ensure exceptional results and an exceptional experience.

"The initial build went reasonably well. We did find problems which they did come back and fix. I noticed a railing support that was cracked. I was told that I must of done it, that was that. The plugs that cover the screw holes in the stairs are falling out. I looked for some at Home Depot, but couldn't find the right color. I still had Chase's cell #, so I texted him and asked if he could send me some plugs, and I would do it myself. No response. Tried again the next day, still no response. I'm not surprised. Aging the build was decent, price was higher than most. Now that nearly 2 years have gone by, and customer service should be anticipated, nothing. Never again."

Lou F on July 2025


Avatar for Marco Polo Home Builder

Marco Polo Home Builder

4.85(
34
)
Approved Pro

Marco Polo Home Builder

4.85(
34
)
Approved Pro
Customers say: Quality work
110 local quotes requested
6 years of experience

Marco Polo Home Builder has been building homes & doing renovations all over Massachusetts with a great combination of skills-building knowledge, craftsmanship, and professional project management. Over the years, we understood that construction is about wood, bricks, and family. We take our job thoughtfully because we know that a home is the most sanctified place for a person. We value our clients' needs and work with our crew and subcontractors to prioritize them. We aim to make your dream project a reality and hope to be on this journey with you.

"We recently completed a gut reno and second story addition. After engaging 10 different contractors, MP was the most communicative, interested, flexible and competitively priced. MP has a large in-house team of experts that work efficiently and adapt to the home owner’s needs and preferences. The employees worked 6 days a week and took great pride in their work. They were personally invested in our project and wanted to make it the home of our dreams. The team includes an amazing designer, Nataly, who helped with selecting finishes. The onsite foreman, Adriano, demonstrated expertise and kindness. Seichelle and Marco did an excellent job with operations, ordering materials and problem-solving. We have been back in our home for 10 months. Anytime I have an issue, Seichelle and the team have addressed it. They have gone above and beyond what is expected. We could not be more pleased with our project. We strongly recommend MP for your next project!"

Laura D on June 2025

Marco Polo Home Builder has been building homes & doing renovations all over Massachusetts with a great combination of skills-building knowledge, craftsmanship, and professional project management. Over the years, we understood that construction is about wood, bricks, and family. We take our job thoughtfully because we know that a home is the most sanctified place for a person. We value our clients' needs and work with our crew and subcontractors to prioritize them. We aim to make your dream project a reality and hope to be on this journey with you.

"We recently completed a gut reno and second story addition. After engaging 10 different contractors, MP was the most communicative, interested, flexible and competitively priced. MP has a large in-house team of experts that work efficiently and adapt to the home owner’s needs and preferences. The employees worked 6 days a week and took great pride in their work. They were personally invested in our project and wanted to make it the home of our dreams. The team includes an amazing designer, Nataly, who helped with selecting finishes. The onsite foreman, Adriano, demonstrated expertise and kindness. Seichelle and Marco did an excellent job with operations, ordering materials and problem-solving. We have been back in our home for 10 months. Anytime I have an issue, Seichelle and the team have addressed it. They have gone above and beyond what is expected. We could not be more pleased with our project. We strongly recommend MP for your next project!"

Laura D on June 2025


Avatar for Loyd's Home Improvement

Loyd's Home Improvement

4.61(
23
)
Approved Pro

Loyd's Home Improvement

4.61(
23
)
Approved Pro
Customers say: Quality work
Recommended by 91% of Angi customers
Recommended by 91% of HomeAdvisor customers
30 local quotes requested

Loyd's Home Improvement is ready to provide everything and anything your home needs to look and feel new again at affordable prices. With over 25 years of experience, Loyd's Home Improvement has designed and build several Handicapped decks and ramps. Call today for details! Additional DBA - Harold Loyd.

"Harold & his crew, Charlie & Mike were awesome. Came to work on time. They listened to my wants & needs and came up with a plan that worked. Communicated with us through out the process. Their attention to detail was incredible. They went above & beyond their job description. I would highly recommend them on any renovations, they are very talented skilled laborers. It was a pleasure doing business with this company."

John R on December 2024

Loyd's Home Improvement is ready to provide everything and anything your home needs to look and feel new again at affordable prices. With over 25 years of experience, Loyd's Home Improvement has designed and build several Handicapped decks and ramps. Call today for details! Additional DBA - Harold Loyd.

"Harold & his crew, Charlie & Mike were awesome. Came to work on time. They listened to my wants & needs and came up with a plan that worked. Communicated with us through out the process. Their attention to detail was incredible. They went above & beyond their job description. I would highly recommend them on any renovations, they are very talented skilled laborers. It was a pleasure doing business with this company."

John R on December 2024


Avatar for 3G's Construction

3G's Construction

4.90(
96
)
Approved Pro

3G's Construction

4.90(
96
)
Approved Pro
Customers say: True professional
Recommended by 94% of Angi customers
Recommended by 94% of HomeAdvisor customers
32 local quotes requested

I am a small construction company with myself and three other employee's, I do all aspects of the jobs. except, Plumbing, Electrical, Excavation, and H.V.A.C., and Plastering, which I provide the contractors for. Billing procedures, usually are 1/3 at the start, 1/3 mid point and final payment upon completion of the project. I am fully licensed and insured.

"We’ve worked with 3G’s a few times now and they, once again, did not disappoint. The team repaired a bedroom that had been damaged, installed a new front door, and updated our siding and window frames, and they did an outstanding job. Their workmanship was excellent, and everything turned out even better than we expected. The crew was professional, friendly, and easy to work with—great communication, always on time, and very respectful of our home. The entire process was smooth from start to finish. We couldn’t be happier with the results and would absolutely recommend them to anyone looking for quality work and a great experience."

Liesl M on November 2025

I am a small construction company with myself and three other employee's, I do all aspects of the jobs. except, Plumbing, Electrical, Excavation, and H.V.A.C., and Plastering, which I provide the contractors for. Billing procedures, usually are 1/3 at the start, 1/3 mid point and final payment upon completion of the project. I am fully licensed and insured.

"We’ve worked with 3G’s a few times now and they, once again, did not disappoint. The team repaired a bedroom that had been damaged, installed a new front door, and updated our siding and window frames, and they did an outstanding job. Their workmanship was excellent, and everything turned out even better than we expected. The crew was professional, friendly, and easy to work with—great communication, always on time, and very respectful of our home. The entire process was smooth from start to finish. We couldn’t be happier with the results and would absolutely recommend them to anyone looking for quality work and a great experience."

Liesl M on November 2025

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Boiler Repair questions, answered by experts

If you’re unsure who to call to fix your boiler, you have a few options. One is to call a dedicated boiler service. However, you can also call a plumber or HVAC technician for boiler repair services. These pros will have the tools, knowledge, and experience to fix common boiler problems.

No, there isn’t always water in radiators. In a one-pipe system, water is constantly circulating from the boiler to the radiators and back. In a two-pipe system, water travels through two separate channels: one that goes to your radiators and one that returns back to the boiler so it can heat up again.

Yes, cleaning a boiler is essential for its efficient and safe operation. Over time, boilers can accumulate dirt, rust, sediment, and mineral deposits, reducing efficiency, increasing energy consumption, and causing potential breakdowns. Cleaning involves removing these deposits from various components like heat exchangers, burners, and pipes. Neglecting cleaning can also lead to corrosion and decreased life span. Regular, yearly maintenance, including cleaning, ensures optimal performance, lower energy bills, and a safer heating system. It's best to consult the boiler's manual or hire a professional technician for cleaning to ensure the job is done right.

The cost of annual maintenance depends on the type of HVAC system you have. AC service typically costs an average of $200 but ranges from $100 to $550. If your system needs repairs, the price will vary significantly depending on what needs fixing. However, addressing the issues as they arise can prevent further damage to your unit and keep it operating efficiently for much longer.

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 Concord, NH 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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