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

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

"The technician's (Tim and Chaun) that did the installing of my HVAC were courteous and professional. Tim made sure everything was working to his satisfaction before he left and told us he would check back in a day or so to make sure it was functioning properly. My wife and myself very pleased. I should also state two years ago we had a new HVAC installed by Swift and continually had problems with it. After many service calls with little luck correcting the issue, Swift installed a new unit. Five more stars to Swift for integrity!"
Response time10 hrs
52 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."
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+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

While many states do not have specific licensing requirements for HVAC companies, your local city or county might. It's always a good idea to check local requirements online and use a tool like Angi’s contractor license lookup to confirm that the company you’re considering is licensed. Regardless of licensing, you should always ensure the company you hire is fully insured to avoid potential lawsuits if a technician is injured on your property. Additionally, it is recommended to check if the company holds third-party certifications, such as North American Technician Excellence (NATE) certification or R-410A certification, which qualifies them to work with HVAC refrigerants.

A blockage in the ductwork may prevent air from flowing through the vent. If some rooms in your home are very hot or cold and another isn't, that can be a sign that a vent is blocked. Another sign of a blockage is a buildup of dirt or dust around the vent. In either case, a duct installer or cleaning service can investigate the issue for you and recommend a course of action.

Yes, scorpions can enter a home through AC vents, especially if the system is not well-sealed. As excellent climbers, they can scale a home's exterior and squeeze through gaps as small as 1/16 of an inch. Scorpions are often attracted to the moisture around air conditioning ducts or seek cooler areas during hot weather, using vents as a pathway inside. They may slip through small openings where the duct meets the vent cover and travel within walls before emerging. To prevent this, inspect your vents, seal any gaps, and consider installing fine mesh screens.

Unfreezing an AC unit is not a DIY project unless the problem is a dirty air filter. Changing out an air filter is easy for homeowners, but otherwise, trying to repair ductwork, refill refrigerant, or replace a blower fan motor are tasks best left to the pros. Otherwise, you could cause further damage to your cooling system or even harm to yourself.

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.

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.