Top-rated heating and air conditioning pros.

Get matched with top heating and air conditioning pros in Union, SC

There are 7 highly-rated local heating and air conditioning pros.

TRUSTED BY UNION, SC HOMEOWNERS

  • Average homeowner rating star icon4.4
    Average homeowner rating
  • Verified reviews icon314
    Verified heating and air conditioning services reviews

Find Heating and air conditioning pros in Union

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.


Avatar for Chris Foster Heating & Air

Chris Foster Heating & Air

4.58(
391
)
Approved Pro

Chris Foster Heating & Air

4.58(
391
)
Approved Pro
Super Service Award
Customers say: True professional
Recommended by 91% of Angi customers
Recommended by 91% of HomeAdvisor customers
51 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


Bentley's Heating & Air

4.92(
36
)
Approved Pro

Bentley's Heating & Air

4.92(
36
)
Approved Pro
Customers say: Super punctual
Recommended by 97% of Angi customers
Recommended by 97% of HomeAdvisor customers
103 local quotes requested

Bentley's Heating and Air has been serving the upstate since 1991. A recent winner of several years of the Better Business Integrity Award shows that we strive for Excellency and 100% satisfaction. We are skilled in all aspects of the heating and cooling business. We sell and service all makes and models. There is never a job too big or too small. Mention Angie's list for a special discount!

"Robbie was excellent and found the source of a problem that my previous heating/air contractors missed."

Greg S on December 2019

Bentley's Heating and Air has been serving the upstate since 1991. A recent winner of several years of the Better Business Integrity Award shows that we strive for Excellency and 100% satisfaction. We are skilled in all aspects of the heating and cooling business. We sell and service all makes and models. There is never a job too big or too small. Mention Angie's list for a special discount!

"Robbie was excellent and found the source of a problem that my previous heating/air contractors missed."

Greg S on December 2019


"Great! Joel was great to work with. He did an excellent job."

Bill L 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 an estimate today!

"Great! Joel was great to work with. He did an excellent job."

Bill L on October 2025


Avatar for E&I Associates llc

E&I Associates llc

No reviews yet

E&I Associates llc

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.




polymatheshvacducts

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polymatheshvacducts

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We work on Hvac systems, we clean air ducts, dryer vents, crawl space encapsulation, attic insulation, minor HVAC repairs. Chimney repairs and sweeps

We work on Hvac systems, we clean air ducts, dryer vents, crawl space encapsulation, attic insulation, minor HVAC repairs. Chimney repairs and sweeps


Weld fab and piping

No reviews yet

Weld fab and piping

No reviews yet

We can weld stainless steel carbon steel and we can do copper brazing and soft solder we can do thread pipe and just general welding and fabrication high quality work not just your average worker we can stick tig and MiG inner shield and MiG with gas and where mobile

We can weld stainless steel carbon steel and we can do copper brazing and soft solder we can do thread pipe and just general welding and fabrication high quality work not just your average worker we can stick tig and MiG inner shield and MiG with gas and where mobile


Avatar for Proplan

Proplan

No reviews yet

Proplan

No reviews yet
Free onsite estimate

Hello my name is Fabian Quintin at a young age I began working as a Framer carpenter I spent 3 years framing until I decided I wanted to learn more trades in hopes of one day becoming the best builder in the nation so I began by working for a landscaping company and quickly memorized everything I needed to know and moved on to do the same with plumbing, masonry, concrete, drywall, painting, flooring, electrical, HVAC, insulation, foundation work and crawlspace maintenance, interior trim, fence installation or repair, siding and flashing, and finally demolition. Our team has hands on experience in all trades ensuring our skills are at peak performance. We do not believe in using shortcuts or ignorance, we do all projects the right way to ensure customer satisfaction while Everything is done in a timely manner. If anything needs to be added I will speak with you beforehand. Before starting Work I will walk through everything with you to ensure no misunderstandings or mistakes. And most importantly at a affordable price! Let us make your house your perfect home!! Se habla espanol!

Hello my name is Fabian Quintin at a young age I began working as a Framer carpenter I spent 3 years framing until I decided I wanted to learn more trades in hopes of one day becoming the best builder in the nation so I began by working for a landscaping company and quickly memorized everything I needed to know and moved on to do the same with plumbing, masonry, concrete, drywall, painting, flooring, electrical, HVAC, insulation, foundation work and crawlspace maintenance, interior trim, fence installation or repair, siding and flashing, and finally demolition. Our team has hands on experience in all trades ensuring our skills are at peak performance. We do not believe in using shortcuts or ignorance, we do all projects the right way to ensure customer satisfaction while Everything is done in a timely manner. If anything needs to be added I will speak with you beforehand. Before starting Work I will walk through everything with you to ensure no misunderstandings or mistakes. And most importantly at a affordable price! Let us make your house your perfect home!! Se habla espanol!

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Heating and Air Conditioning questions, answered by experts

To extend your HVAC system’s lifespan, it’s crucial to keep up with maintenance. This includes changing filters and thermostat batteries, keeping the outside unit clean and clear of clutter, and lubricating moving parts. Watch out for leaks, mold buildup, and blockages to ensure your unit stays in good working order. Spotting these issues early can be the difference between a simple, wallet-friendly repair and an expensive replacement.

Yes, you can clean AC coils yourself. Just make sure that the power to your AC system is off before you begin. You’ll need some basic tools and supplies, including a soft brush, cloth, screwdriver, and a commercial or homemade cleaning solution. Cleaning your coils will only cost about $10.

A 3-ton AC unit is probably too big for a home that’s 1,200 square feet. If you have a 1,200-square-foot home, you likely need a unit that’s somewhere around 1.9 and 2 tons. An AC unit that’s too large will be really inefficient and cost you a lot of extra money on your bills. 

Yes, but they don’t feel the same as an AC-cooled room. You’ll feel cool, moist air, opposite from an HVAC system that dries the air as it cools. Ventless units also have less tonnage than alternatives like ductless and central air, which means they aren’t as capable of quickly cooling large spaces or circulating cold air.

If your HVAC system's capacity doesn't match the required CFM (Cubic Feet per Minute), imbalances can occur. An undersized system struggles to maintain desired temperatures, leading to discomfort. An oversized system might short-cycle, wasting energy and causing temperature fluctuations. Properly matching capacity to CFM ensures efficient and consistent heating, cooling, and home ventilation system performance.

The Union, SC homeowners’ guide to heating and air conditioning services

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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