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  • Average homeowner rating star icon4.5
    Average homeowner rating
  • Verified reviews icon902
    Verified boiler repairs reviews

Find Boiler repair pros in Mendham

Avatar for Gold Medal Service

Gold Medal Service

4.00(
4
)
Approved Pro

Gold Medal Service

4.00(
4
)
Approved Pro
Customers say: Quick response
884 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 Petro Home Services

Petro Home Services

4.44(
98
)
Approved Pro

Petro Home Services

4.44(
98
)
Approved Pro
Customers say: True professional
519 local quotes requested
122 years of experience

With over 100 years experience, we know how to keep you comfortable, safe and help you save on energy costs. Our local 24/7 customer service and support means automatic heating oil deliveries and our service response is always fast. We never run out of heating oil plus our pricing and payment plans are designed to help you manage your costs all year round. Experience the Petro difference today!

"Worst service I’ve ever have experienced. They wanted to sell me the product, never told me that there was an early termination fee and another penalty for an initial offer they gave me. Had double charges every month, once for the oil they provided (which they never told me they were going to provide before coming. They just came without my knowledge and then I find a high amount bill) and another for an “automatic payment” for 500 that they never could explain. The didn’t even fix this issue and it kept happening every month even after I cancelled the service. Then having to call them is a hastié for the refund of the 500. Stay away of this company"

Axel R on January 2023

With over 100 years experience, we know how to keep you comfortable, safe and help you save on energy costs. Our local 24/7 customer service and support means automatic heating oil deliveries and our service response is always fast. We never run out of heating oil plus our pricing and payment plans are designed to help you manage your costs all year round. Experience the Petro difference today!

"Worst service I’ve ever have experienced. They wanted to sell me the product, never told me that there was an early termination fee and another penalty for an initial offer they gave me. Had double charges every month, once for the oil they provided (which they never told me they were going to provide before coming. They just came without my knowledge and then I find a high amount bill) and another for an “automatic payment” for 500 that they never could explain. The didn’t even fix this issue and it kept happening every month even after I cancelled the service. Then having to call them is a hastié for the refund of the 500. Stay away of this company"

Axel R on January 2023


M2M Construction LLC

4.94(
17
)
Approved Pro

M2M Construction LLC

4.94(
17
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
33 local quotes requested

We specialized in kitchens and bathrooms remodeling ( almost 20 years of experience) We are also general contractors so we handle small and big exterior and interior projects Quality of work and great customer service is our priority

"We received excellent referrals of M2M and Mark and as a contractor from our realtor, and they met all our expectations. Their team is knowledgeable, committed, clean, and delivers high-quality work with minimum mess. Mark supervised our project and worked closely to attend to all our needs, a significant differential from the contractors in the area. We recommend them for clients looking for a high-end quality job."

Tatiane I on October 2021

We specialized in kitchens and bathrooms remodeling ( almost 20 years of experience) We are also general contractors so we handle small and big exterior and interior projects Quality of work and great customer service is our priority

"We received excellent referrals of M2M and Mark and as a contractor from our realtor, and they met all our expectations. Their team is knowledgeable, committed, clean, and delivers high-quality work with minimum mess. Mark supervised our project and worked closely to attend to all our needs, a significant differential from the contractors in the area. We recommend them for clients looking for a high-end quality job."

Tatiane I on October 2021


Avatar for Advanced Heating & Air Conditioning

Advanced Heating & Air Conditioning

4.64(
76
)
Approved Pro

Advanced Heating & Air Conditioning

4.64(
76
)
Approved Pro
Customers say: Quality work
Recommended by 96% of Angi customers
Recommended by 96% of HomeAdvisor customers
16 years of experience

Founded in 1984, Advanced Heating & Air Conditioning (AHAC) initially operated as Alpha Oil Company until 2000 when it transitioned exclusively to HVAC services. Established by brothers Lou and Danny Roerig, the business flourished under Danny's leadership until his retirement in 2009. The company, now helmed by nephews Louis & Nicholas, continued its upward trajectory by acquiring local HVAC businesses from 2010 to 2012, such as Advance Service Inc. & Ship Mechanical. Serving Warren, Hunterdon, and Middlesex Counties in New Jersey, as well as Lehigh and Northampton Counties in Pennsylvania, AHAC has built a strong reputation for exceptional customer service since its inception. Today, it remains committed to growth and customer satisfaction, adapting to meet the evolving needs of its expanding clientele.

"The tech called ahead to say we will be there in 35 minutes. They came on time! ( Between 10-12) efficient, knowledgeable and did a great job. Canâ t ask for better than that! Thank you!"

Carole C on September 2022

Founded in 1984, Advanced Heating & Air Conditioning (AHAC) initially operated as Alpha Oil Company until 2000 when it transitioned exclusively to HVAC services. Established by brothers Lou and Danny Roerig, the business flourished under Danny's leadership until his retirement in 2009. The company, now helmed by nephews Louis & Nicholas, continued its upward trajectory by acquiring local HVAC businesses from 2010 to 2012, such as Advance Service Inc. & Ship Mechanical. Serving Warren, Hunterdon, and Middlesex Counties in New Jersey, as well as Lehigh and Northampton Counties in Pennsylvania, AHAC has built a strong reputation for exceptional customer service since its inception. Today, it remains committed to growth and customer satisfaction, adapting to meet the evolving needs of its expanding clientele.

"The tech called ahead to say we will be there in 35 minutes. They came on time! ( Between 10-12) efficient, knowledgeable and did a great job. Canâ t ask for better than that! Thank you!"

Carole C on September 2022


Avatar for Victory Sewer & Drain, LLC

Victory Sewer & Drain, LLC

4.99(
46
)
Approved Pro

Victory Sewer & Drain, LLC

4.99(
46
)
Approved Pro
Customers say: Quick response
Recommended by 97% of Angi customers
Recommended by 97% of HomeAdvisor customers
13 local quotes requested

Here at Victory Sewer & Drain, LLC, we pride our company on reliability, great communication, integrity, and quality work. We strongly believe in giving our absolute best in all of our projects no matter how big or small. We are experts in our trade and will always keep you educated on your particular task or project. With 16 years experience, we look forward to earning your business! call or text for Emergency services

"Anthony was amazing. Will use again if needed"

Chris D on February 2025

Here at Victory Sewer & Drain, LLC, we pride our company on reliability, great communication, integrity, and quality work. We strongly believe in giving our absolute best in all of our projects no matter how big or small. We are experts in our trade and will always keep you educated on your particular task or project. With 16 years experience, we look forward to earning your business! call or text for Emergency services

"Anthony was amazing. Will use again if needed"

Chris D on February 2025


Avatar for Dukey's Sewer & Drain Cleaning

Dukey's Sewer & Drain Cleaning

4.95(
20
)
Approved Pro

Dukey's Sewer & Drain Cleaning

4.95(
20
)
Approved Pro
Customers say: Terrific value
Recommended by 95% of Angi customers
Recommended by 95% of HomeAdvisor customers
5 years of experience

Dukey's Sewer & Drain Cleaning provides professional, reliable and competitively priced drain cleaning services. Our goal is to target and resolve your clog or blockage utilizing the latest equipment and technology. It's a messy buiness and we take pride in keeping your home, office, or business as tidy as when we arrived.

"I can not say enough good things about Kurt and Duckey’s! I had a major problem with my sewer line. It was compounded by my having a very sick wife (cancer) and the absolute need for fast and reliable work. Kurt responded within a half hour (!) and found and fixed the problem right away. He was great to work with and incredibly professional. I give Duckey’s my absolute highlight recommendation!"

John L on January 2025

Dukey's Sewer & Drain Cleaning provides professional, reliable and competitively priced drain cleaning services. Our goal is to target and resolve your clog or blockage utilizing the latest equipment and technology. It's a messy buiness and we take pride in keeping your home, office, or business as tidy as when we arrived.

"I can not say enough good things about Kurt and Duckey’s! I had a major problem with my sewer line. It was compounded by my having a very sick wife (cancer) and the absolute need for fast and reliable work. Kurt responded within a half hour (!) and found and fixed the problem right away. He was great to work with and incredibly professional. I give Duckey’s my absolute highlight recommendation!"

John L on January 2025


Manny Design

New on AngiNew on Angi
Approved Pro

Manny Design

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

Manny Design is committed to excellence in every aspect of our business. We uphold a standard of integrity bound by fairness, honesty and responsibility in all of our jobs. We are a locally owned and operated business with more than 5 years of experience serving Newark, NJ and surrounding areas. There is no job too big, or too small for our team. Call today and let us put our experience to work for you!

Manny Design is committed to excellence in every aspect of our business. We uphold a standard of integrity bound by fairness, honesty and responsibility in all of our jobs. We are a locally owned and operated business with more than 5 years of experience serving Newark, NJ and surrounding areas. There is no job too big, or too small for our team. Call today and let us put our experience to work for you!


Avatar for North Crest, LLC

North Crest, LLC

4.98(
45
)
Approved Pro

North Crest, LLC

4.98(
45
)
Approved Pro
Customers say: Quick response
Recommended by 97% of Angi customers
Recommended by 97% of HomeAdvisor customers
5 years of experience

North Crest LLC is committed to excellence in every aspect of our electrical business. While we are relatively new in business, we have been doing many aspects of electrical work for over 30 years. 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 customer's interests, and make their concerns the basis of our business. Please call to set up an appointment and allow us to earn your business. North Crest, LLC is licensed and permitted in New Jersey. We are also Licensed in Rockland County, New York.

"Great job! Very professional and a pleasure to do business with. We’d definitely use his services again."

Aviv W on March 2025

North Crest LLC is committed to excellence in every aspect of our electrical business. While we are relatively new in business, we have been doing many aspects of electrical work for over 30 years. 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 customer's interests, and make their concerns the basis of our business. Please call to set up an appointment and allow us to earn your business. North Crest, LLC is licensed and permitted in New Jersey. We are also Licensed in Rockland County, New York.

"Great job! Very professional and a pleasure to do business with. We’d definitely use his services again."

Aviv W on March 2025


Avatar for RJK Mechanical Contractors, LLC

RJK Mechanical Contractors, LLC

4.91(
33
)
Approved Pro

RJK Mechanical Contractors, LLC

4.91(
33
)
Approved Pro
Customers say: Quality work
Recommended by 96% of Angi customers
Recommended by 96% of HomeAdvisor customers
22 years of experience

We're dedicated to providing our clients with the very best in service, installation, and repair for your heating and cooling needs. We are a locally owned and operated company that values honesty and integrity. We specialize in central A/C and cooling systems, as well as heating and furnace systems. We take pride in the quality of our work, and our commitment to outstanding results. We look forward to building long-term relationships with our clients, and guarantee your satisfaction! Visit us @ RJKMECH.com

"Short version: Professionalism, competency, and integrity is what you can expect from RJK. When our AC stopped working, another company came out to investigate and we were quoted an outrageous temporary repair cost and were advised to replace the whole system. We called RJK and they called back almost immediately. Upon arriving, they advised that a whole system replacement would be unnecessary for starters. But before even doing that, they wanted to have their techs double check that the system was truly in need of any replacement. Turns out the fix was straightforward and within 30 minutes the system was repaired at a fraction of the cost of the original contractor's quoted repair cost and definitely cheaper than a whole new system."

Steve T on July 2022

We're dedicated to providing our clients with the very best in service, installation, and repair for your heating and cooling needs. We are a locally owned and operated company that values honesty and integrity. We specialize in central A/C and cooling systems, as well as heating and furnace systems. We take pride in the quality of our work, and our commitment to outstanding results. We look forward to building long-term relationships with our clients, and guarantee your satisfaction! Visit us @ RJKMECH.com

"Short version: Professionalism, competency, and integrity is what you can expect from RJK. When our AC stopped working, another company came out to investigate and we were quoted an outrageous temporary repair cost and were advised to replace the whole system. We called RJK and they called back almost immediately. Upon arriving, they advised that a whole system replacement would be unnecessary for starters. But before even doing that, they wanted to have their techs double check that the system was truly in need of any replacement. Turns out the fix was straightforward and within 30 minutes the system was repaired at a fraction of the cost of the original contractor's quoted repair cost and definitely cheaper than a whole new system."

Steve T on July 2022


J&S Heating & Cooling

3.00(
2
)
Approved Pro

J&S Heating & Cooling

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

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Boiler Repair questions, answered by experts

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.

Over time, a radiator can leak if turned off due to the built-up air pressure, which can cause water or coolant to leak. If your radiator leaks when it’s off, turn your whole system off and bleed the radiator, then turn it back on. If it’s still leaking, you might want to have an HVAC professional look at the issue.

There are several common types of HVAC systems that you may have, including split systems, hybrid HVAC, duct-free systems, packaged heating and air, geothermal heating, or even portable units for heating or cooling. If you aren’t sure which type is in your home or are looking to install something different, you should consult an HVAC pro to determine which option is right for your heating and cooling needs.

Yes, it is OK to turn off some radiators, and you’ll save money on heating costs if you make it a regular habit to turn your radiators off in unused rooms that don’t need heat. That said, turn them back on when you need to heat your whole home instead of cranking up the dial on the ones you haven’t closed to compensate. The latter will result in higher heating costs and more wear and tear on your system.

Annual servicing, checking for leaks, and maintaining proper pressure extend the system’s life.

The Mendham, NJ homeowners’ guide to boiler repairs

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