Top-rated heating and air conditioning pros.

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

Enter your zip and get matched with up to 5 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
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


Avatar for HG Services

HG Services

4.94(
18
)
Approved Pro

HG Services

4.94(
18
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
586 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 an estimate today!

"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


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
93 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


Avatar for Cransten Service All Stars

Cransten Service All Stars

4.40(
100
)
Approved Pro

Cransten Service All Stars

4.40(
100
)
Approved Pro
Customers say: Quality work
2995 local quotes requested
9 years of experience

Cransten is the best handyman and remodeling experience in the US. Our team is vetted, trained, background checked, and amazing at what we do. We are licensed and insured. Get a free quote from us today and see what we can do to help create your dream home!

"Seemed very nice on the phone but when I went to hire them I would of had to wait almost 6 to 8 weeks because they were totally booked out. So figured they must really have a great business just was sorry i couldn't wait."

Christina C on September 2025

Cransten is the best handyman and remodeling experience in the US. Our team is vetted, trained, background checked, and amazing at what we do. We are licensed and insured. Get a free quote from us today and see what we can do to help create your dream home!

"Seemed very nice on the phone but when I went to hire them I would of had to wait almost 6 to 8 weeks because they were totally booked out. So figured they must really have a great business just was sorry i couldn't wait."

Christina C on September 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

No reviews yet

polymatheshvacducts

No reviews yet

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


Blake bost

No reviews yet

Blake bost

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

...
Showing 1-10 of 151
Heating and Air Conditioning questions, answered by experts

If you have the luxury of waiting a bit to replace your unit, they can drop in price depending on the time of year. Air conditioning units often go on sale in the fall after they’re not as in demand when the temps drop outside. Same with furnaces—prices drop in the spring when it starts getting warmer.

A new HVAC unit typically adds about $2,500 to $3,000 to the value of your home or about 5% to 7% of your home’s value. Since a new unit can cost up to or more than $10,000 to install, it’s up to you to decide if the upfront cost is worth the added value. Consult a local AC installer to determine next steps.

If left untreated, a frozen AC unit can lead to costly damage, especially to the compressor and evaporator coils. When ice forms on the evaporator coils, they become brittle and more susceptible to breaking. Plus, a freeze makes your AC system much less efficient, which means it's wasting energy and costing you more in your monthly energy bills.

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. 

No. Evaporator coils are designed to work with specific refrigerant types, and they are rated by what kinds of refrigerant they use. It’s indicated with an “R” code. It’s important to match your evaporator coil and refrigerant or your system will not work properly. An AC technician can tell you what type of refrigerant your system needs and what evaporator coils will work with it.

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.