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4.6

(96 reviews)

Top-rated heating and air conditioning pros.

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Avatar for ALL-STAR AIR PROS LLC
ALL-STAR AIR PROS LLC
5.0(
13
)

Serving Sumter, SC and surrounding areas

Approved

In business since 2025

Free estimates

Emergency services offered

"Russell was very thorough. He checked everything, asked me questions, and showed evidence of issues. He did more than simply fix a problem. He educated me on how to determine when a problem is arising. He offers a phenomenal benefit plan to keep HVAC unit in great condition year round. I would highly recommend him for your HVAC needs."
Clean Air
Breathing problems
Heat Pump A/C
Furnace A/C
Duct Work, Works

+2

Response time3 hrs
Response rate100%
17 neighbors recently requested a quote
Avatar for ARS / Rescue Rooter Columbia
ARS / Rescue Rooter Columbia
4.1(
103
)

Serving Sumter, SC and surrounding areas

Approved (Corporate)

In business since 1976

Free estimates

Credit card accepted

"Very Professional with the job. Explain all of what was done to the heat pump and a/c unit. If you have any questions after the unit was put in, when it was finished. Very friendly. It only took him one day to do the work. Very happy for what was done. Thank you ARS."
System Installation
353 neighbors recently requested a quote
Recommended by83%of homeowners
Avatar for Gonzo Heating and Air
Gonzo Heating and Air
5.0(
9
)

Serving Sumter, SC and surrounding areas

Approved

In business since 2021

Free estimates

Emergency services offered

"If you’re looking for prompt, professional, and trustworthy service, look no further. The owner at Gonzo was very personable, and took the time to explain every step of their process in a way that I could actually understand (the communication was phenomenal). He also has an extensive background in the HVAC industry. Can’t recommend these guys enough!"
Heating & A/C Project
Heating and Air Conditioning Project
Heating and Air Conditioning Project
Heating & A/C Project
Heating and Air Conditioning Project

+20

Response time2 days
46 neighbors recently requested a quote
Recommended by88%of homeowners
Avatar for Pee Dee Climate Solutions
Pee Dee Climate Solutions
5.0(
8
)

Serving Sumter, SC and surrounding areas

Approved

Free estimates

Emergency services offered

Credit card accepted

"This service was TOP NOTCH!!!!!! very professional and got the job done quickly and efficiently!!! I will never use anyone else other than pee dee climate solutions for any of my future needs!!!! I HIGHLY recommend this company to everyone!!!"
Photos of my work
Photos of my work
Photos of my work
Photos of my work
Photos of my work

+5

31 neighbors recently requested a quote
Avatar for Call Dad, LLC
Call Dad, LLC
3.9(
32
)

Serving Sumter, SC and surrounding areas

Approved (Corporate)

In business since 2012

Free estimates

Emergency services offered

"The technician was thorough and completed the repair in a timely manner. The entire process from start to finish was addressed professionally."
AC Unit
Air Handler/Furnace
Response time3 hrs
263 neighbors recently requested a quote
Recommended by27%of homeowners
Avatar for HVAC Service Corporation
HVAC Service Corporation
New to Angi

Serving Sumter, SC and surrounding areas

Approved

In business since 2007

Free estimates

Credit card accepted

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.

Chiller Job
Response time3 hrs
Response rate94%
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Heating and Air Conditioning 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.

The length of an AC cycle depends on the settings in your thermostat and the unit you have. Central AC doesn't constantly run at full blast the way that a window unit does. A cooling cycle in most homes is 15 to 20 minutes. Then, the unit stays off for seven to 10 minutes to circulate the cold air in the house before the cycle repeats. It should repeat two or three times per hour. A short cycle lasts less than 10 minutes and then turns off.

A 10,000-watt generator can run a small to mid-sized central AC unit (typically up to 3 tons or 36,000 BTU) along with a few other appliances. However, larger AC units or additional loads will require a bigger generator. Consult a local generator installer to ensure you add the correct size generator to your home.

When first installed, flex ducts shouldn’t cause airflow problems in your home. However, because flex ducts aren’t the sturdiest and require extra support, they lose their durability over time and begin to sag, which can inhibit airflow down the road. Also, if your flex ducts aren’t tight enough, your HVAC could work twice as hard for the same air pressure. If you’re worried about the airflow in your home, a rigid duct may be your best bet.

The standard HVAC warranty is around five years. Still, many brands offer an extension to 10 years if you register the product within a specific timeframe, typically 60 to 90 days post-purchase or HVAC installation. Over the past decade, warranty periods have substantially increased, shifting from 3-5 years in the 90s to the now-prevalent 10+ year warranties. Both warranty types cover parts failing due to manufacturer defects, incurring no additional costs. Some manufacturers provide extended warranties surpassing the usual 15- to 20-year window, though these often involve extra fees. 

The Sumter, 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.