Top-rated boiler repair pros.

Get matched with top boiler repair pros in Union, SC

There are 8 highly-rated local boiler repair pros.

TRUSTED BY UNION, SC HOMEOWNERS

  • Average homeowner rating star icon4.5
    Average homeowner rating
  • Verified reviews icon1k+
    Verified boiler repairs reviews

Find Boiler repair pros in Union

Avatar for Flaker Flooring L.L.C.

Flaker Flooring L.L.C.

1233 Doug Hollow Rd
4.49(
51
)
Approved Pro

Flaker Flooring L.L.C.

1233 Doug Hollow Rd
4.49(
51
)
Approved Pro
Customers say: Terrific value
397 local quotes requested
26 years of experience

Flaker Flooring is a family run business that provides quality install with respect to a customers home and a keen eye for detail. 25 years of experience gives Flaker Flooring the confidence to help a home owner reach their goals with flooring upgrades to their home... We take pride in our work and would love the chance to work in your home. "We got you covered..."Our company also provides Plumbing, electrical, and painting services.

"he came gave me 300 for the job since - came bk and i gave him 200 i held out 100- ever wk its some other excuse this has been going on for 3 wks -he just hung up on me"

Eileen L on August 2025

Flaker Flooring is a family run business that provides quality install with respect to a customers home and a keen eye for detail. 25 years of experience gives Flaker Flooring the confidence to help a home owner reach their goals with flooring upgrades to their home... We take pride in our work and would love the chance to work in your home. "We got you covered..."Our company also provides Plumbing, electrical, and painting services.

"he came gave me 300 for the job since - came bk and i gave him 200 i held out 100- ever wk its some other excuse this has been going on for 3 wks -he just hung up on me"

Eileen L on August 2025


Avatar for Ka'Vontay's Door Installation

Ka'Vontay's Door Installation

1821 Tanyard St.
New on AngiNew on Angi
Approved Pro

Ka'Vontay's Door Installation

1821 Tanyard St.
New on AngiNew on Angi
Approved Pro
3 years of experience
Free onsite estimate

Kavontay's 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.

Kavontay's 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.


Avatar for Hvac Service Corporation

Hvac Service Corporation

321 S Avon Street
New on AngiNew on Angi
Approved Pro

Hvac Service Corporation

321 S Avon Street
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.


Avatar for Chris Foster Heating & Air

Chris Foster Heating & Air

229 Penick Drive
4.58(
391
)
Approved Pro

Chris Foster Heating & Air

229 Penick Drive
4.58(
391
)
Approved Pro
Super Service Award
Customers say: True professional
Recommended by 91% of Angi customers
Recommended by 91% of HomeAdvisor customers
56 local quotes requested

With over 30 years experience, Chris Foster Heating & Air understands that it's important to do the job right the first time, and that we work for YOU. We will arrive on time and we get the job done right the first time. We offer a service warranty for peace of mind. There is no job too big or too small for us to handle, and we go above and beyond anyone else to make sure that we exceed your expectations. Our #1 goal is customer satisfaction and we can't wait to serve you and add you to our long list of happy customers. **FINANCING AVAILABLE - PLEASE CALL FOR DETAILS.**

"Solve my issue with a water leak on furnace. Fixed it with no issues. Other companies couldn't. Proficient and knowledgeable. Would use again. Fair price. Convenient. "

Tony L on August 2025

With over 30 years experience, Chris Foster Heating & Air understands that it's important to do the job right the first time, and that we work for YOU. We will arrive on time and we get the job done right the first time. We offer a service warranty for peace of mind. There is no job too big or too small for us to handle, and we go above and beyond anyone else to make sure that we exceed your expectations. Our #1 goal is customer satisfaction and we can't wait to serve you and add you to our long list of happy customers. **FINANCING AVAILABLE - PLEASE CALL FOR DETAILS.**

"Solve my issue with a water leak on furnace. Fixed it with no issues. Other companies couldn't. Proficient and knowledgeable. Would use again. Fair price. Convenient. "

Tony L on August 2025


Carolina Heating Service

1507 Antioch Church Road
New on AngiNew on Angi
Approved Pro

Carolina Heating Service

1507 Antioch Church Road
New on AngiNew on Angi
Approved Pro
48 local quotes requested
44 years of experience

At Carolina Heating Service, we're more than just your local HVAC experts—we're your neighbors, dedicated to providing the highest quality service to keep your home comfortable year-round. From expertly trained technicians to responsive communication, we're here to deliver peace of mind with every visit. Discover what sets us apart and why Greenville residents trust us for their heating, cooling, and generator needs. Carolina Heating Service was founded in 1981 by Horace and Scott Kelly, dedicated to providing top-notch HVAC and plumbing services in the Greenville, SC, area.

At Carolina Heating Service, we're more than just your local HVAC experts—we're your neighbors, dedicated to providing the highest quality service to keep your home comfortable year-round. From expertly trained technicians to responsive communication, we're here to deliver peace of mind with every visit. Discover what sets us apart and why Greenville residents trust us for their heating, cooling, and generator needs. Carolina Heating Service was founded in 1981 by Horace and Scott Kelly, dedicated to providing top-notch HVAC and plumbing services in the Greenville, SC, area.


Avatar for E&I Associates llc

E&I Associates llc

8521 Stoneman Place
No reviews yet

E&I Associates llc

8521 Stoneman Place
No reviews yet
5 years of experience

E&I Associates LLC is a company dedicated to providing comprehensive solutions in commercial, residential, and industrial cleaning services, maintenance, and surface restoration. Equipped with state-of-the-art machines and top-of-the-line equipment, the company delivers high-quality cleaning services, from high-impact tasks like commercial floor Strip & Wax to comprehensive repair and restoration services for properties affected by natural disasters, including plumbing, electrical, air conditioning, and heating work. Known for its commitment to quality and attention to detail in every project, E&I Associates LLC ensures a clean, safe, and functional environment. Their team of qualified professionals focuses on technical excellence and strives to provide outstanding customer service with every job.

E&I Associates LLC is a company dedicated to providing comprehensive solutions in commercial, residential, and industrial cleaning services, maintenance, and surface restoration. Equipped with state-of-the-art machines and top-of-the-line equipment, the company delivers high-quality cleaning services, from high-impact tasks like commercial floor Strip & Wax to comprehensive repair and restoration services for properties affected by natural disasters, including plumbing, electrical, air conditioning, and heating work. Known for its commitment to quality and attention to detail in every project, E&I Associates LLC ensures a clean, safe, and functional environment. Their team of qualified professionals focuses on technical excellence and strives to provide outstanding customer service with every job.



Avatar for R&M Building and Remodeling

R&M Building and Remodeling

Pickett Mill Road
No reviews yet

R&M Building and Remodeling

Pickett Mill Road
No reviews yet
8 years of experience

We Provide High Quality Remodels, Repairs, and Renovations for Residential Homes and Commercial Properties. We also do Custom Deck Design and Construction. Privacy Fences. Patios. Sheds. Siding. Roof Repair. Retaining Walls and other Hard Scapes. We do it all!

We Provide High Quality Remodels, Repairs, and Renovations for Residential Homes and Commercial Properties. We also do Custom Deck Design and Construction. Privacy Fences. Patios. Sheds. Siding. Roof Repair. Retaining Walls and other Hard Scapes. We do it all!



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Boiler Repair questions, answered by experts

Signs of needing a new expansion tank include visible leaks and a dull sound when you knock your knuckles against the tank (working tanks should sound hollow). A malfunctioning tank may also sweat with condensation, cause pipes to create loud noises when the system is turned off, and lead to very high-pressure readings on the boiler’s gauges. When in doubt, call for a professional inspection to find the source of the problem.

Yes. Boilers need water to run without overheating, also known as dry firing. If you run it without a sufficient volume of water, either because of a burst pipe or a leak, you run the risk of damaging your machine or jeopardizing the safety of your home as a whole. When in doubt, shut off your boiler and repair any plumbing issues before turning it back on. Alternatively, consider installing a low-water cutoff (LWCO) before any issues arise. This gadget will protect your boiler by monitoring water levels and automatically shutting it off if it gets too low. 

A poorly maintained boiler can lead to serious issues like deadly carbon monoxide poisoning, so schedule regular maintenance services. Of course, it’s also a good idea to check your carbon monoxide detectors in your home to make sure they’re working properly. Moreover, when you forget to maintain your boiler, small problems can lead to something much more serious, which will cost you more money in the long run. Repairs average around $400, while a full replacement can total over $6,000.

Scale from hard water is hard to diagnose until it starts causing problems. If your area has particularly hard water, that’s most likely what your boiler is using. If scale build-up becomes a problem, it starts to cause decreased flow and heating, and eventually, valve failures as valves become blocked. Let boiler professionals know if you’re worried about scale and they can offer advice or implement a solution.

Both hydronic and electric hydronic heaters usually come with a higher price tag up front, but you can save more on energy costs over time compared to standard heaters. They also provide heat for a short time after the heater is actually turned off, making them more efficient. Additionally, standard convection heaters use electric coils to heat up the air, whereas hydronic heaters warm up water or oil which then heats the air.

The Union, SC 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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