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  • Average homeowner rating star icon4.5
    Average homeowner rating
  • Verified reviews icon1.1k+
    Verified boiler repairs reviews

Find Boiler repair pros in Andover

Avatar for Gold Medal Service

Gold Medal Service

120 Route 59
4.00(
4
)
Approved Pro

Gold Medal Service

120 Route 59
4.00(
4
)
Approved Pro
Customers say: Quick response
690 local quotes requested
Free onsite estimate

Gold Medal Service is your premier choice for Electrical and Home Systems needs! In the New York City (Tri-State Area). Our team of experts is dedicated to providing top-notch service. With our unmatched expertise and commitment to customer satisfaction. Contact us today for a gold standard service experience.

"I recently replaced the heating/air conditioning unit in my townhome. It was an easy process start to finish. Aiden (sales) answered all my questions and provided options for my needs. Mick the technician was on-time and thorough. These guys represented their company well. Great experience working with Gold Medal Service."

Isa R on January 2025

Gold Medal Service is your premier choice for Electrical and Home Systems needs! In the New York City (Tri-State Area). Our team of experts is dedicated to providing top-notch service. With our unmatched expertise and commitment to customer satisfaction. Contact us today for a gold standard service experience.

"I recently replaced the heating/air conditioning unit in my townhome. It was an easy process start to finish. Aiden (sales) answered all my questions and provided options for my needs. Mick the technician was on-time and thorough. These guys represented their company well. Great experience working with Gold Medal Service."

Isa R on January 2025


Avatar for Speer Air

Speer Air

PO Box 844
4.55(
163
)
Approved Pro

Speer Air

PO Box 844
4.55(
163
)
Approved Pro
Customers say: Super punctual
64 local quotes requested
67 years of experience

The Speer family started their company in 1900 selling coal and oil to residents and businesses in Northern New Jersey. Speer Air Conditioning was formed in 1958 and incorporated in 1966. Since then Speer Air has attained a reputation as one of the top heating and air conditioning companies in New Jersey. We average between 35 and 50 employees seasonally. We are a Carrier Factory Authorized Dealer (FAD) and have a New Jersey Home Improvement Contractor's license, 13VH00978100 as well as a New Jersey Electrical license, 14873. We provide complete HVAC services as well as electrical services. Speer Air is also a Generac Home Stand-by generator dealer. We also will give a $100 discount in addition to Speer Air discounts and the many utility rebate programs that are available. We look forward to serving you and offer a 100% satisfaction guarantee .

"Changing my 5 star review to 2 stars. We have had a HE Boiler as well as a AC/Heat Pump installed by them. Unfortunately we needed service today. I was willing to pay for Emergency service. They said they couldn't make it out for 14 days, because we did not have a service contract. Spent about $25k for the installations. Which apparently means nothing to them What makes matters worse, the Emergency Service we paid through another HVAC provider was only necessary because of an issue they created during the installation. During the installation Speer Air originally ran the line for the residual pump over the copper hot water line. Which over time burned through the residual line, and then cause a hole and leak on the copper pipe."

Richard K on November 2023

The Speer family started their company in 1900 selling coal and oil to residents and businesses in Northern New Jersey. Speer Air Conditioning was formed in 1958 and incorporated in 1966. Since then Speer Air has attained a reputation as one of the top heating and air conditioning companies in New Jersey. We average between 35 and 50 employees seasonally. We are a Carrier Factory Authorized Dealer (FAD) and have a New Jersey Home Improvement Contractor's license, 13VH00978100 as well as a New Jersey Electrical license, 14873. We provide complete HVAC services as well as electrical services. Speer Air is also a Generac Home Stand-by generator dealer. We also will give a $100 discount in addition to Speer Air discounts and the many utility rebate programs that are available. We look forward to serving you and offer a 100% satisfaction guarantee .

"Changing my 5 star review to 2 stars. We have had a HE Boiler as well as a AC/Heat Pump installed by them. Unfortunately we needed service today. I was willing to pay for Emergency service. They said they couldn't make it out for 14 days, because we did not have a service contract. Spent about $25k for the installations. Which apparently means nothing to them What makes matters worse, the Emergency Service we paid through another HVAC provider was only necessary because of an issue they created during the installation. During the installation Speer Air originally ran the line for the residual pump over the copper hot water line. Which over time burned through the residual line, and then cause a hole and leak on the copper pipe."

Richard K on November 2023


"They did an outstanding job replacing my entire AC system. I highly recommend them for their top-notch service and efficiency!"

Sam J on July 2025

Air Conditioning and Heating Services - We're a team of experienced and qualified HVAC technicians dedicated to providing exceptional service, expert repairs, and top-notch installations for your Cooling and Heating systems.

"They did an outstanding job replacing my entire AC system. I highly recommend them for their top-notch service and efficiency!"

Sam J on July 2025


Avatar for Ryan & Company

Ryan & Company

44 Abbett Ave
4.48(
64
)
Approved Pro

Ryan & Company

44 Abbett Ave
4.48(
64
)
Approved Pro
Customers say: Super punctual
116 local quotes requested
76 years of experience

We are a Family owned & operated business. Ryan & Co.,Inc. is a full service Plumbing, Heating and Cooling repair and installation company established in 1949 with a genuine commitment to professional, affordable & personalized service.

"Great job guys. Lovely working with them"

Robert H on July 2024

We are a Family owned & operated business. Ryan & Co.,Inc. is a full service Plumbing, Heating and Cooling repair and installation company established in 1949 with a genuine commitment to professional, affordable & personalized service.

"Great job guys. Lovely working with them"

Robert H on July 2024


Avatar for Advanced Professional Plumbing Heating & Cooling

Advanced Professional Plumbing Heating & Cooling

19 Ryle Ave
4.20(
869
)
Approved Pro

Advanced Professional Plumbing Heating & Cooling

19 Ryle Ave
4.20(
869
)
Approved Pro
Customers say: Quality work
208 local quotes requested
26 years of experience

Efficient and Honest, Advanced Professional’s has become a reputable and well-known service provider. We are fully licensed and insured so our team is up for every job, whether it is high-quality heating, plumbing, air conditioning, or managing general contractor projects (residential, commercial and industrial) we provide the skills and experience our clients have come to expect available 24/7. We want our customers to be satisfied with our work. When it comes to the job we don’t see our clients as just people we service, we treat them like family.

"Excellent job??????. Excellent customer service and very courteous. Left work area very clean and tidy."

Shirley D on December 2023

Efficient and Honest, Advanced Professional’s has become a reputable and well-known service provider. We are fully licensed and insured so our team is up for every job, whether it is high-quality heating, plumbing, air conditioning, or managing general contractor projects (residential, commercial and industrial) we provide the skills and experience our clients have come to expect available 24/7. We want our customers to be satisfied with our work. When it comes to the job we don’t see our clients as just people we service, we treat them like family.

"Excellent job??????. Excellent customer service and very courteous. Left work area very clean and tidy."

Shirley D on December 2023


Avatar for JVML LLC

JVML LLC

338 S. 20th St.
5.00(
17
)
Approved Pro

JVML LLC

338 S. 20th St.
5.00(
17
)
Approved Pro
Customers say: Quick response
5 years of experience
Free onsite estimate

Our company provides exceptional service to Pennsylvania and NJ. Always taking pride in our services, striving to execute with excellence, and putting our customers in the forefront is our philosophy. Whatever your home improvement needs may be, you can count on our company to leave you satisfied and happy. Call today (862)888-2289, you'll be pleased you did. Thank you

"Great service... Very profesional.. Thank you!"

Luis H on October 2025

Our company provides exceptional service to Pennsylvania and NJ. Always taking pride in our services, striving to execute with excellence, and putting our customers in the forefront is our philosophy. Whatever your home improvement needs may be, you can count on our company to leave you satisfied and happy. Call today (862)888-2289, you'll be pleased you did. Thank you

"Great service... Very profesional.. Thank you!"

Luis H on October 2025


Avatar for GB Comfort Services, LLC

GB Comfort Services, LLC

P.O. Box 641
5.00(
10
)
Approved Pro

GB Comfort Services, LLC

P.O. Box 641
5.00(
10
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
8 years of experience

GB Comfort Services, LLC, has over 15 years of experience making your home or office as comfortable as possible. Whether a heating, cooling or plumbing issue, our company has the ability to get the job done. From A/C central air installs to heat pump replacements, to plumbing repairs, we do it all! Call us today for a free quote!

"GB Comfort Services gave us a quote which was 1/2 the cost of another supplier. They came highly recommended form a friend and accepted their quote. When they came to do the work they work time extended much more than was expected because of other issues in our furnace. They fixed it all and after 6 1/2 hours which should have taken 3 1/2 without other issues they still charged us what they quoted us even after we said we expected to pay more because of the time and effort they put in. They said no they stood by their quote. Great honest people. A Rarity these days. I highly recommend them and they are my furnace company from now on."

Frank P on February 2023

GB Comfort Services, LLC, has over 15 years of experience making your home or office as comfortable as possible. Whether a heating, cooling or plumbing issue, our company has the ability to get the job done. From A/C central air installs to heat pump replacements, to plumbing repairs, we do it all! Call us today for a free quote!

"GB Comfort Services gave us a quote which was 1/2 the cost of another supplier. They came highly recommended form a friend and accepted their quote. When they came to do the work they work time extended much more than was expected because of other issues in our furnace. They fixed it all and after 6 1/2 hours which should have taken 3 1/2 without other issues they still charged us what they quoted us even after we said we expected to pay more because of the time and effort they put in. They said no they stood by their quote. Great honest people. A Rarity these days. I highly recommend them and they are my furnace company from now on."

Frank P on February 2023


Basement Waterproofing Specialists

127 2nd Avenue
4.32(
442
)
Approved Pro

Basement Waterproofing Specialists

127 2nd Avenue
4.32(
442
)
Approved Pro
Customers say: Quality work
205 local quotes requested
16 years of experience

Our personnel make up the complete collection of the best in the industry with decades of experience. We are a small family-owned business, not a giant corporation. We treat you like family and that's the difference! We pride ourselves on being the most professional family-owned business in our industry. We employee the highest caliber employees and use the best quality products available. We are fully licensed Home Improvement Contractors in every state we serve with the goal of leading the forefront of innovation in all that we do and setting the standard in this trade. We were the first to: Conduct mold remediation while simultaneously waterproofing. Offer lifetime warranties for our waterproofing services for the life of the structure. Offer lifetime warranties for the sump pumps. (We know they will not last a lifetime; it is a free replacement for our customers and our appreciation of their business). Clean out basement crawlspaces and garages while waterproofing.

"The job inside was done. However the drainage put in outside has turned our yard into a swimming pool. We once had a pipe draining to the creek and this was a perfect solution to the rains/weather. These guys came in and put a round small cylinder well. Water pumps up into our yard turning it into a swamp. Called them to come and see the problem they created. Their response $2900 to fix THEIR DAMAGE. I WOULD NEVER RECCOMEND THIS COMPANY!!"

Mike F on June 2025

Our personnel make up the complete collection of the best in the industry with decades of experience. We are a small family-owned business, not a giant corporation. We treat you like family and that's the difference! We pride ourselves on being the most professional family-owned business in our industry. We employee the highest caliber employees and use the best quality products available. We are fully licensed Home Improvement Contractors in every state we serve with the goal of leading the forefront of innovation in all that we do and setting the standard in this trade. We were the first to: Conduct mold remediation while simultaneously waterproofing. Offer lifetime warranties for our waterproofing services for the life of the structure. Offer lifetime warranties for the sump pumps. (We know they will not last a lifetime; it is a free replacement for our customers and our appreciation of their business). Clean out basement crawlspaces and garages while waterproofing.

"The job inside was done. However the drainage put in outside has turned our yard into a swimming pool. We once had a pipe draining to the creek and this was a perfect solution to the rains/weather. These guys came in and put a round small cylinder well. Water pumps up into our yard turning it into a swamp. Called them to come and see the problem they created. Their response $2900 to fix THEIR DAMAGE. I WOULD NEVER RECCOMEND THIS COMPANY!!"

Mike F on June 2025


J&S Heating & Cooling

15 Doe Run
3.00(
2
)
Approved Pro

J&S Heating & Cooling

15 Doe Run
3.00(
2
)
Approved Pro
Customers say: Quick response
18 years of experience

Our team is passionate & professional and committed to providing the absolute best experience for our clients. Our obsession over cost, schedule, safety, and quality ensures that projects are completed on time, within budget, and with impeccable attention to detail. From beginning to end of every project, our goal is to bring every aspect and detail of our client's concept to reality. We believe that strong communication, integrity, organization and honesty are the principles that have given us such a trusted reputation in a competitive industry. We are proud of the work that we do, and passionate about bringing visions to life. Give us a call today!

"First of all I wanna mention that my experience is similar to many people who have been serviced by j&s as it appears in their Yelp reviews. I had a working furnace that was tripping because of limited airflow, they practically forced me to change the furnace. Which, cost me $4000 and took over 2 weeks. Then the new one had a defective gas valve. Then the furnace kept tripping and stopped working even after changing the valve. I had to reopen the work order for the 3rd time. When they came they found out about the limited airflow from the dirty coil. They said they'll talk with AHS and get back to me, but what they did is they closed the request as completed. I had to call again to reopen the request. When they showed, up they tried to talk me into downgrading my filter. It was too late when I realized that the real issue was a dirty coil and/or duckt work not the furnace. Lastly, they sneakily updated the request to have a non covered item ($200 to change the air filter) this way,"

Emad H on May 2025

Our team is passionate & professional and committed to providing the absolute best experience for our clients. Our obsession over cost, schedule, safety, and quality ensures that projects are completed on time, within budget, and with impeccable attention to detail. From beginning to end of every project, our goal is to bring every aspect and detail of our client's concept to reality. We believe that strong communication, integrity, organization and honesty are the principles that have given us such a trusted reputation in a competitive industry. We are proud of the work that we do, and passionate about bringing visions to life. Give us a call today!

"First of all I wanna mention that my experience is similar to many people who have been serviced by j&s as it appears in their Yelp reviews. I had a working furnace that was tripping because of limited airflow, they practically forced me to change the furnace. Which, cost me $4000 and took over 2 weeks. Then the new one had a defective gas valve. Then the furnace kept tripping and stopped working even after changing the valve. I had to reopen the work order for the 3rd time. When they came they found out about the limited airflow from the dirty coil. They said they'll talk with AHS and get back to me, but what they did is they closed the request as completed. I had to call again to reopen the request. When they showed, up they tried to talk me into downgrading my filter. It was too late when I realized that the real issue was a dirty coil and/or duckt work not the furnace. Lastly, they sneakily updated the request to have a non covered item ($200 to change the air filter) this way,"

Emad H on May 2025


Avatar for ABCastello's Heating and Cooling

ABCastello's Heating and Cooling

9 Indian Terrace
4.81(
87
)
Approved Pro

ABCastello's Heating and Cooling

9 Indian Terrace
4.81(
87
)
Approved Pro
Customers say: Quick response
Recommended by 95% of Angi customers
Recommended by 95% of HomeAdvisor customers
20 years of experience

A family-owned and operated business, with over 25 years of experience. ABCastello's Heating and Air conditioning, gas piping, oil to gas conversions, oil furnace installation and repair. Give us a call today and speak to someone to get professional advice on your next project. We look forward to working with you! BOOK YOUR APPOINTMENTS NOW AT WWW.ABCASTELLOSHVAC.COM

"Desmond did a great job completing service work on my oil burner. Clean, quick and knowable of his work. I would and still use them for my boiler."

Angelo B on March 2025

A family-owned and operated business, with over 25 years of experience. ABCastello's Heating and Air conditioning, gas piping, oil to gas conversions, oil furnace installation and repair. Give us a call today and speak to someone to get professional advice on your next project. We look forward to working with you! BOOK YOUR APPOINTMENTS NOW AT WWW.ABCASTELLOSHVAC.COM

"Desmond did a great job completing service work on my oil burner. Clean, quick and knowable of his work. I would and still use them for my boiler."

Angelo B on March 2025

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Boiler Repair questions, answered by experts

Clean regularly, check for leaks, and schedule annual inspections for safety and efficiency.

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.

To bleed a radiator, first turn off the heat to the system. Then, lay a towel under the valve, open the bleed valve, wait 20 to 30 seconds for air to escape, and gently close the valve. You should repeat this process for every radiator you have in your home. Once your radiator valves have all been closed carefully, you can turn them back on.

A furnace is a big unit where gas, heating oil, or electricity heats the air. The warmed air is then pushed back out through ducts and vents. 

A boiler uses electricity, heating oil, or gas to heat water that is pushed into the room through a radiator. This is one of the oldest and most effective ways to heat a house, but radiators can also be unsightly and leave hot and cold spots in the room.

Heat pumps use a refrigerant to move heat from outside into the house and return it to the room through ducts and vents.

The absence of heating or hot water, unusual noises like banging or gurgling, and visible water leakage are key signs. Abnormal boiler pressure, flame irregularities (for gas boilers), or pilot light issues may also signal trouble. Frequent cycling, soot or staining, and unusual odors, particularly gas-like smells, should not be ignored. Modern boilers often display error codes or lockout mode upon detecting issues. Uneven heating across radiators and rising energy bills without increased usage can further point to problems. Prompt attention to these signs is essential to prevent further damage and ensure safety.

The Andover, NJ 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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