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Top-Rated Heating and air conditioning pros in Johnsonville - Updated Nov 2026

Avatar for Air Time of South Carolina LLC
Air Time of South Carolina LLC
4.7(
115
)
Air Ducts & Vents - CleanCentral A/C - InstallCentral A/C - Service or Repair+8 more

Serving Johnsonville, SC and surrounding areas

Approved

In business since 2005

Free estimates

Emergency services offered

"Called Air Time on a Thursday and they offered to install the system the next day. Gave me an incredible price I couldn't beat anywhere in town. I would definitely recommend Air Time for your HVAC needs along the Grand Strand."
New mini split
new mini split
Installs completed
Installs completed
Installs completed

+25

Response time10 mins
Response rate100%
Recommended by93%of homeowners
Harold's AC Repair
4.9(
24
)
Central A/C - Service or RepairElectric Furnace / Forced Air Heating System - RepairGas Furnace / Forced Air Heating System - Repair+2 more

Serving Johnsonville, SC and surrounding areas

Approved

In business since 2008

Free estimates

Credit card accepted

"I called Harold around 8AM and explained my problem. He said he could fix it. Harold came right away even though he was a 45 minute drive from me. He opened the back of the hvac unit and immediately said, hereâ s your problem and showed it to me. He had the part with him, replaced it and fixed the unit like he promised. He is honest, friendly, experienced and trust worthy. I highly recommend him to anyone in the Myrtle Beach area."
Response time6 hrs
Response rate89%
7 neighbors recently requested a quote
Avatar for Swift Services Heating & Cooling, LLC
Swift Services Heating & Cooling, LLC
4.0(
65
)
Central A/C - InstallElectric Furnace / Forced Air Heating System - InstallAir Ducts & Vents - Clean+10 more

Serving Johnsonville, SC and surrounding areas

Approved (Corporate)

In business since 1997

Free estimates

Emergency services offered

"Swift is an efficient and professional service company. They installed my new air conditioner quickly and with no problems. They were on time, and the installers were friendly and courteous. I would recommend them to everyone. I would not use anyone else for my AC service. They are the best!"
Response time10 hrs
51 neighbors recently requested a quote
Recommended by89%of homeowners
Avatar for Hill Plumbing & Electric Company Inc.
Hill Plumbing & Electric Company Inc.
4.5(
41
)
Central A/C - InstallElectric Furnace / Forced Air Heating System - InstallBoiler or Radiator Heating System - Install or Replace+47 more

Serving Johnsonville, SC and surrounding areas

Approved

In business since 1925

Free estimates

Emergency services offered

"Job was completed in one day. It was convenient. I woke up with no hot water. Called Hill's (it was on a Friday) around 10am and they had one of their plumbers call me right back so I could explain the problem. He gave me a time that he would be at my home. He called me when he was on the way. He arrived at the time he had said he would (3:30pm). He showed me the problem. Water heater was leaking. (It was 22 years old). It needed to be replaced. I didn't have time or a truck to go purchase one myself. He replaced it and we had hot water by 6pm."
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+14

Response time1 day
Response rate100%
7 neighbors recently requested a quote
Avatar for Local Heating&Cooling
Local Heating&Cooling
New to Angi
Air Ducts & Vents - Clean

Serving Johnsonville, SC and surrounding areas

Approved

Free estimates

Emergency services offered

Warranties offered

Locally owned and operated company. We pride ourselves on being honest with the homeowners. We give free estimates and free second opinions as well. Can’t count the amount of times we’ve gone behind other companies to find out that there were lies being told and homeowners stressing themselves out for minor or no problems at all. So don’t hesitate to call us and stay comfortable in your home.

Edith chavez
5.0(
1
)
Air Ducts & Vents - Clean

Serving Johnsonville, SC and surrounding areas

Approved

ABOUT ME: \n\nI am a dedicated cleaning professional with years of experience providing dependable, detailed cleaning services. \n\nAs a homeowner and mother of two daughters, I understand how important a clean, comfortable, and well-maintained space is for families \n\nI take pride in treating every home and property with care, respect & attention to detail.\n\n\nMy Passion:\n\nFor years, I dedicated myself to customer service & serving the \ncommunity, but I have always enjoyed cleaning. There is something incredibly satisfying about transforming a space and bringing comfort, peace & freshness to a home. \n\nThat passion is what inspired me to start my own cleaning business. Provide the quality, honesty, and care that every home deserves. It’s more than a job for me; it’s something I love, and it shows through in every finished result.

3 neighbors recently requested a quote
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Heating and Air Conditioning FAQs, answered by experts

Whether an HVAC damper should be open or closed depends on the season, the zone it controls, and the temperature in that zone. In the summer, open upstairs dampers and close lower-level dampers to get the most efficient cooling possible. In the winter, do the opposite. Cool air will naturally flow down to lower levels, while warm air will rise. This keeps your system from working harder and helps prevent common AC problems.

An AC drip pan may stop draining if there’s a clog where the drip pan connects to the drain line. Clogs can form from a lack of cleaning or from rust or corrosion buildup. Cleaning the drip pan at least once per month lowers the chances of debris clogging the drain line.

Modern AC leak sealants work as a temporary measure to stop refrigerant leaks. You can purchase them at most home improvement stores or on online. When using an AC leak sealant, keep in mind that it’s only a temporary solution, so you’ll still need to hire a pro to install a replacement part as soon as possible.

The best way to reduce heat upstairs is to release it by opening a window. Hot air rises, and if you can create some airflow by opening a window upstairs and also one on a lower level, the hot air should be pushed out of the home. Remember that fans pointing out the window do a much better job of circulating air than fans pointing into the home.

Ideally, an AC system should never need more Freon (a popular refrigerant) because it circulates in a closed loop. However, refrigerant leaks are not uncommon and may occur gradually over 5 to 15 years. If your system has a leak, it will need to be topped up in a process known as an AC recharge. Signs of a refrigerant leak include weakened AC performance, increased humidity in your home, higher utility bills, and a hissing sound from the unit. The cost of an AC recharge will depend on the size and type of your AC unit, as well as the type of refrigerant it uses.

The Johnsonville, 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.