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TRUSTED BY DEMAREST, NJ HOMEOWNERS

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

Find Boiler repair pros in Demarest

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
887 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
524 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


Avatar for Premier Built

Premier Built

4.80(
35
)
Approved Pro

Premier Built

4.80(
35
)
Approved Pro
Customers say: Terrific value
Recommended by 94% of Angi customers
Recommended by 94% of HomeAdvisor customers
281 local quotes requested

We guarantee your satisfaction and we won’t leave until the job is done right. 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 a free estimate today.

"Got Richard repaired my window, he definitely know his stuff, only took couple minutes. He then worked on some other repairs and projects Everything went down smoothly, nice chat along the way too, overall nice experience"

Robert C on October 2025

We guarantee your satisfaction and we won’t leave until the job is done right. 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 a free estimate today.

"Got Richard repaired my window, he definitely know his stuff, only took couple minutes. He then worked on some other repairs and projects Everything went down smoothly, nice chat along the way too, overall nice experience"

Robert C on October 2025


Avatar for Alfano Mechanical, LLC

Alfano Mechanical, LLC

4.99(
55
)
Approved Pro

Alfano Mechanical, LLC

4.99(
55
)
Approved Pro
Customers say: Quick response
Recommended by 92% of Angi customers
Recommended by 92% of HomeAdvisor customers
2 years of experience

Alfano Mechanical LLC 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.

"The team was on time, thorough, and left everything clean. Top-notch service!"

Jerome B on December 2024

Alfano Mechanical LLC 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.

"The team was on time, thorough, and left everything clean. Top-notch service!"

Jerome B on December 2024


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!


AAA Solutions

5.00(
7
)
Approved Pro

AAA Solutions

5.00(
7
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
8 years of experience

AAA Solutions is your one stop shop for all your repair services! With our extensive experience in serving your area, there iss no job to big or small! We pride ourselves on quality and with our world class customer service and competitive pricing. You will choose us every time! Call us today!

"Juan came as a referral after doing some work at my in-laws home. Great diagnostician and took the time and effort to get the job done where others had failed. He is creative, a pleasure to work with and does quality work. I highly recommend him"

Yisrael G on August 2020

AAA Solutions is your one stop shop for all your repair services! With our extensive experience in serving your area, there iss no job to big or small! We pride ourselves on quality and with our world class customer service and competitive pricing. You will choose us every time! Call us today!

"Juan came as a referral after doing some work at my in-laws home. Great diagnostician and took the time and effort to get the job done where others had failed. He is creative, a pleasure to work with and does quality work. I highly recommend him"

Yisrael G on August 2020


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


Basement Waterproofing Specialists

4.32(
442
)
Approved Pro

Basement Waterproofing Specialists

4.32(
442
)
Approved Pro
Customers say: Quality work
177 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

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


"Great to work with! Very responsive and professional before, during , and after the job. Reasonably priced and I'm confident the work was done right"

Jennifer W on April 2019

DIRA Associates,Inc d/b/a ARID BASEMENT WATERPROOFING is a family owned/operated business for over 60 years. Specializing in French drains, we also install battery backup systems.

"Great to work with! Very responsive and professional before, during , and after the job. Reasonably priced and I'm confident the work was done right"

Jennifer W on April 2019

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Boiler Repair questions, answered by experts

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.

Repair costs range from $200 to $800, depending on the issue and required parts.

Safety concerns with propane boilers include proper venting to prevent carbon monoxide buildup, secure gas line connections, and regular inspection of safety controls. Professional boiler installation and annual maintenance are essential to minimize risks. Having a carbon monoxide detector installed in your home is essential for early detection of any leaks or ventilation issues.

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.

If you don't clean a boiler, you may have higher energy bills or no heat. A dirty boiler is inefficient and can't properly maintain a heating system. It may break down more often due to corrosion or clogs from soot and oil buildup. Cleaning a boiler improves its performance. The cost to replace a boiler can be expensive, so keeping it clean is a cost-effective practice.

The Demarest, NJ homeowners’ guide to boiler repairs

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

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