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    Average homeowner rating
  • Verified reviews icon589
    Verified boiler repairs reviews

Find Boiler repair pros in Cramerton

Avatar for HL Bowman Heating, Air Conditioning, Plumbing and Electric

HL Bowman Heating, Air Conditioning, Plumbing and Electric

4.67(
27
)
Approved Pro

HL Bowman Heating, Air Conditioning, Plumbing and Electric

4.67(
27
)
Approved Pro
Customers say: True professional
306 local quotes requested
79 years of experience

HL Bowman Heating, Air Conditioning, and Plumbing is Metro Charlotte's trusted heating, cooling, and plumbing experts. Serving our communities since 1946, our trained technicians, installers, and plumbers are available for all your home comfort needs. We specialize in new maintenance, repair, system installation and upgrades.

"If i could give zero stars i would have. We paid almost $12,000 back in October for them install a new system in our home. Since then we have failed county inspection 3 times. The techs who come out all have different stories and excuses. The electrician who came out last time Donald informed us of how terrible his own company was and how he planned to quit. Me and my mother have taken countless days off work for them to come bandaid the problems instead of fixing them costing us even more money for missing work. Last Monday we failed for the 3rd time so I reached out AGAIN to the cooperate office and here we are 7 days later with no response and issue still not addressed This will be reported to the BBB, Angie's list will be reported for false advertising because the reviews under this company's name are actually for a company they bought out action 9 will be involved if this isn't the last time I have to deal with these people. It's the most unprofessional experience I've had with any HVAC company and I'm very disappointed in how they conduct themselves and their business please home owners beware!!"

Margie W on January 2025

HL Bowman Heating, Air Conditioning, and Plumbing is Metro Charlotte's trusted heating, cooling, and plumbing experts. Serving our communities since 1946, our trained technicians, installers, and plumbers are available for all your home comfort needs. We specialize in new maintenance, repair, system installation and upgrades.

"If i could give zero stars i would have. We paid almost $12,000 back in October for them install a new system in our home. Since then we have failed county inspection 3 times. The techs who come out all have different stories and excuses. The electrician who came out last time Donald informed us of how terrible his own company was and how he planned to quit. Me and my mother have taken countless days off work for them to come bandaid the problems instead of fixing them costing us even more money for missing work. Last Monday we failed for the 3rd time so I reached out AGAIN to the cooperate office and here we are 7 days later with no response and issue still not addressed This will be reported to the BBB, Angie's list will be reported for false advertising because the reviews under this company's name are actually for a company they bought out action 9 will be involved if this isn't the last time I have to deal with these people. It's the most unprofessional experience I've had with any HVAC company and I'm very disappointed in how they conduct themselves and their business please home owners beware!!"

Margie W on January 2025


Avatar for Comfort Monster Heating & Air / Absolute

Comfort Monster Heating & Air / Absolute

4.79(
221
)
Approved Pro

Comfort Monster Heating & Air / Absolute

4.79(
221
)
Approved Pro
Customers say: True professional
Recommended by 93% of Angi customers
Recommended by 93% of HomeAdvisor customers
64 local quotes requested

For a limited time, we're offering $0 diagnostic calls for first-time customers! Estimates for a new home comfort system are always 100% free. We are a full service Heating and Air Conditioning Company providing quality service and installation to homeowners in Charlotte, NC, and the surrounding areas in both North and South Carolina. Our team of licensed HVAC professionals are on a mission to give you the BEST customer service experience you've ever had. Our technicians have an average of 12 years of HVAC experience, and are here to help answer all of your HVAC questions. At Comfort Monster Heating & Air, We Provide Service So Good, It's Scary!

"Gabe came through and dis a great job with the AC service. He was very knowledgeable and courteous"

Valerie N on February 2025

For a limited time, we're offering $0 diagnostic calls for first-time customers! Estimates for a new home comfort system are always 100% free. We are a full service Heating and Air Conditioning Company providing quality service and installation to homeowners in Charlotte, NC, and the surrounding areas in both North and South Carolina. Our team of licensed HVAC professionals are on a mission to give you the BEST customer service experience you've ever had. Our technicians have an average of 12 years of HVAC experience, and are here to help answer all of your HVAC questions. At Comfort Monster Heating & Air, We Provide Service So Good, It's Scary!

"Gabe came through and dis a great job with the AC service. He was very knowledgeable and courteous"

Valerie N on February 2025


Avatar for GSM Services

GSM Services

4.71(
100
)
Approved Pro

GSM Services

4.71(
100
)
Approved Pro
Customers say: Super punctual
Recommended by 92% of Angi customers
Recommended by 92% of HomeAdvisor customers
243 local quotes requested

We are a licensed and insured HVAC and home services contractor, delivering fast, affordable, and top-quality work backed by a 100% satisfaction guarantee. With over 98 years in business, we’ve earned a reputation for exceptional customer service, reliability, and trust. As your one-stop solution for home comfort, we specialize in improving comfort, energy efficiency, air quality, and the overall health of your home’s environment. Heating & Cooling Repairs • HVAC Install & Replacements • Insulation • Air Duct Cleaning • Dryer Vent Cleaning • Home Energy Audits • Crawl Space Encapsulations • Attic & Crawl Space Improvement Services • Standby Generators • Air Quality & Home Mold Solutions • Dehumidifiers • Ductwork Repair & Replacement • FREE HVAC Service Calls with Repair • FREE Online Quote on New Heating & Cooling Systems • FREE Insulation Evaluations • FREE Crawl Space Evaluations • FREE Home Energy Audits

"Everything was seamless! Great job"

Amanda R on April 2023

We are a licensed and insured HVAC and home services contractor, delivering fast, affordable, and top-quality work backed by a 100% satisfaction guarantee. With over 98 years in business, we’ve earned a reputation for exceptional customer service, reliability, and trust. As your one-stop solution for home comfort, we specialize in improving comfort, energy efficiency, air quality, and the overall health of your home’s environment. Heating & Cooling Repairs • HVAC Install & Replacements • Insulation • Air Duct Cleaning • Dryer Vent Cleaning • Home Energy Audits • Crawl Space Encapsulations • Attic & Crawl Space Improvement Services • Standby Generators • Air Quality & Home Mold Solutions • Dehumidifiers • Ductwork Repair & Replacement • FREE HVAC Service Calls with Repair • FREE Online Quote on New Heating & Cooling Systems • FREE Insulation Evaluations • FREE Crawl Space Evaluations • FREE Home Energy Audits

"Everything was seamless! Great job"

Amanda R on April 2023


"Marshall was out before and replaced a water pressure sensor. The outside spigot started making a noise when turned on. He responded quickly and answered all our questions concerning the noise from the outside water spigot. He was professional and knowledgeable. I highly recommend his service."

Sharon I on August 2024

When you have a plumbing problem you need it fixed fast, fixed right, and fixed by a family friendly company you can trust - Consider it Done.

"Marshall was out before and replaced a water pressure sensor. The outside spigot started making a noise when turned on. He responded quickly and answered all our questions concerning the noise from the outside water spigot. He was professional and knowledgeable. I highly recommend his service."

Sharon I on August 2024


Avatar for Roto-Rooter Plumbing & Water Cleanup

Roto-Rooter Plumbing & Water Cleanup

5.00(
5
)
Approved Pro

Roto-Rooter Plumbing & Water Cleanup

5.00(
5
)
Approved Pro
17 local quotes requested
90 years of experience

Roto-Rooter Plumbing & Water Cleanup is open 24/7 to help with all your drain, clog, and emergency plumbing needs. Our dedicated local team of service technicians is standing by for immediate assistance. Whether it's a water heater, garbage disposal, pipe leak or a problem with a sump pump - we're qualified and ready to assist. Trust your local Roto-Rooter team today.

Roto-Rooter Plumbing & Water Cleanup is open 24/7 to help with all your drain, clog, and emergency plumbing needs. Our dedicated local team of service technicians is standing by for immediate assistance. Whether it's a water heater, garbage disposal, pipe leak or a problem with a sump pump - we're qualified and ready to assist. Trust your local Roto-Rooter team today.


Avatar for HS Services HVAC, Inc.

HS Services HVAC, Inc.

4.89(
9
)
Approved Pro

HS Services HVAC, Inc.

4.89(
9
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
7 years of experience

HS Services HVAC Inc 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. With a 24hr service.

"These guys were awesome! They arrived on schedule and knocked out the needed work on no time. My new HVAC crew for sure."

Dusty T on November 2019

HS Services HVAC Inc 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. With a 24hr service.

"These guys were awesome! They arrived on schedule and knocked out the needed work on no time. My new HVAC crew for sure."

Dusty T on November 2019


Avatar for Silver Line Construction Plus

Silver Line Construction Plus

5.00(
11
)
Approved Pro

Silver Line Construction Plus

5.00(
11
)
Approved Pro
Super Service Award
Customers say: Quality work
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
10 years of experience

With over 10 years of experience, I take pride in my quality craftsmanship. We are owner operated, and believe in building long-term relationships with our clients by delivering honesty along with exceptional work. We pride our company on reliability, great communication, integrity, and customer service. We are experts in our trade and will do our best to keep you as educated as we can on your particular project. Give us a call today! We look forward to working with you!

"They did a great job! My roof looks great! Reliable and kept me well informed about everything. They kept cost in mind and cleaned up nicely after themselves. Serge even came out late to tarp the roof until it could get repaired so that I didnâ t have any further damage to the house waiting for the roof. They were very nice to work with. Great people. I canâ t say enough good things about them!"

Sammi E on June 2024

With over 10 years of experience, I take pride in my quality craftsmanship. We are owner operated, and believe in building long-term relationships with our clients by delivering honesty along with exceptional work. We pride our company on reliability, great communication, integrity, and customer service. We are experts in our trade and will do our best to keep you as educated as we can on your particular project. Give us a call today! We look forward to working with you!

"They did a great job! My roof looks great! Reliable and kept me well informed about everything. They kept cost in mind and cleaned up nicely after themselves. Serge even came out late to tarp the roof until it could get repaired so that I didnâ t have any further damage to the house waiting for the roof. They were very nice to work with. Great people. I canâ t say enough good things about them!"

Sammi E on June 2024


Avatar for Mr. Furnace HVAC Services

Mr. Furnace HVAC Services

4.98(
21
)
Approved Pro

Mr. Furnace HVAC Services

4.98(
21
)
Approved Pro
Customers say: Quality work
17 local quotes requested
10 years of experience

I’m one of only 3 certified HVAC service engineers in the south eastern United States!! Finding problems and correcting them before they cause major issues is easy to me .. 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 the start to the completion of a project. In order to understand the needs and expectations of our customers, we strive 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

"After receiving a quote from another company of 13k to replace my ac unit, I reached out to Neal with Mr. Furnace. He quoted me half the price and put a temporary kit on the existing unit until the new unit came in. Everything was installed within a few days. Def recommend him for all of your ac needs. "

Lynette M on August 2025

I’m one of only 3 certified HVAC service engineers in the south eastern United States!! Finding problems and correcting them before they cause major issues is easy to me .. 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 the start to the completion of a project. In order to understand the needs and expectations of our customers, we strive 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

"After receiving a quote from another company of 13k to replace my ac unit, I reached out to Neal with Mr. Furnace. He quoted me half the price and put a temporary kit on the existing unit until the new unit came in. Everything was installed within a few days. Def recommend him for all of your ac needs. "

Lynette M on August 2025


Avatar for Hvac Service Corporation

Hvac Service Corporation

New on AngiNew on Angi
Approved Pro

Hvac Service Corporation

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

We have extensive experience providing design, construction, installation and on going maintenance for all of our service lines across a diverse spectrum of industries and asset types. Founded over 75 years ago, HVAC Service Corporation has been a cornerstone in the Carolinas for reliable and efficient HVAC solutions. Our commitment to quality service and customer satisfaction has made us a trusted name in the industry. We are licensed and insured in North Carolina, South Carolina, and parts of Georgia, with our headquarters located in Gastonia, NC. Our mission is to provide top-notch commercial heating and air conditioning services that meet the unique needs of our clients.

We have extensive experience providing design, construction, installation and on going maintenance for all of our service lines across a diverse spectrum of industries and asset types. Founded over 75 years ago, HVAC Service Corporation has been a cornerstone in the Carolinas for reliable and efficient HVAC solutions. Our commitment to quality service and customer satisfaction has made us a trusted name in the industry. We are licensed and insured in North Carolina, South Carolina, and parts of Georgia, with our headquarters located in Gastonia, NC. Our mission is to provide top-notch commercial heating and air conditioning services that meet the unique needs of our clients.


DB Mechanical Heating and Cooling, LLC

New on AngiNew on Angi
Approved Pro

DB Mechanical Heating and Cooling, LLC

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

Welcome to DB Mechanical Heating and Cooling, LLC! Since opening our doors in 2015, we have been proud to service Charlotte and the surround areas. With over 15 years experience, no project is too big or too small for us to handle and customer satisfaction is always guaranteed. Give us a call, we can't wait to work with you!

Welcome to DB Mechanical Heating and Cooling, LLC! Since opening our doors in 2015, we have been proud to service Charlotte and the surround areas. With over 15 years experience, no project is too big or too small for us to handle and customer satisfaction is always guaranteed. Give us a call, we can't wait to work with you!

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Boiler Repair questions, answered by experts

While it's generally safe to stay in a home with a coolant leak if your home is properly ventilated, it's important to have a professional come out to assess the situation right away. You should evacuate your home if you notice any powerful fumes. Additionally, you should leave your home if you are experiencing headaches or dizziness.

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.

Once you install your boiler, you can expect it to last for at least 10 to 15 years. Maximize the lifespan of your boiler by choosing a quality boiler, installing it properly, and having it professionally maintained each year. In the event that your boiler does need repair, address any issues immediately.

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.

If you go to turn it counterclockwise and it won’t turn anymore, it’s open. Like most other valves, you should be able to turn a radiator valve counterclockwise (to the left) to open it and clockwise (right) to close it. To close a radiator valve, turn it clockwise until you meet some resistance and can’t turn anymore, but do so carefully to avoid breaking the valve.

The Cramerton, NC homeowners’ guide to boiler repairs

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