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Verified Reviews for Air Conditioning pros in Johnston, SC

*The Angi rating for Air Conditioning companies in Johnston, SC is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Air Conditioning needs.

*The HomeAdvisor rating for Air Conditioning companies in Johnston, SC is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Air Conditioning needs.

Last update on June 12, 2026

Find Air conditioning pros in Johnston

Avatar for P & W HVAC Services
P & W HVAC Services
4.7(
271
)
Central A/C - Service or RepairCentral A/C - Service or Repair - For Business

Serving Johnston, SC and surrounding areas

Approved

Super Service Award Winner

In business since 2013

Free estimates

Emergency services offered

"Steven was very helpful in fixing our AC."
Nice Concrete Pad
P & W
P & W
Clogged Air Filter
TXV

+11

Response time5 hrs
170 neighbors recently requested a quote
Recommended by89%of homeowners
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Avatar for ARS / Rescue Rooter Columbia
ARS / Rescue Rooter Columbia
4.1(
103
)
Central A/C - InstallCentral A/C - Service or RepairDuctless Mini-split A/C - Install or Replace

Serving Johnston, SC and surrounding areas

Approved (Corporate)

In business since 1976

Free estimates

Credit card accepted

"Excellent communication during entire install. It was actually a split for our garage and it works great."
System Installation
343 neighbors recently requested a quote
Recommended by83%of homeowners
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Avatar for Cool-Ant's Heating and Air Conditioning, LLC
Cool-Ant's Heating and Air Conditioning, LLC
5.0(
11
)
Central A/C - InstallCentral A/C - Service or RepairCentral A/C - Service or Repair - For Business+1 more

Serving Johnston, SC and surrounding areas

Approved

Super Service Award Winner

In business since 2025

Free estimates

Emergency services offered

"Anthonie was very professional he went above and beyond to get the job done. He called and handle everything with my warranty he got the job done very quickly. He called back to check on me and did folllow up to make sure I was satisfied."
Air Handler/heat Pump
Air Handler/heat Pump
Air Handler/heat Pump
Air Handler/heat Pump
Air Handler/heat Pump

+6

Response time2 days
8 neighbors recently requested a quote
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Avatar for American Air and Mold Solutions, LLC
American Air and Mold Solutions, LLC
4.6(
466
)
Air Ducts & Vents - Clean

Serving Johnston, SC and surrounding areas

Approved

In business since 2006

Free estimates

Credit card accepted

"They found mold in my bathroom and cleaned the vent to eliminate it."
American Air and Mold
Duct cleaning
Duct cleaning
Duct cleaning
Duct cleaning

+7

12 neighbors recently requested a quote
Recommended by84%of homeowners
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Avatar for Ducts Columbia
Ducts Columbia
4.9(
9
)
Air Ducts & Vents - Clean

Serving Johnston, SC and surrounding areas

Approved

In business since 2002

Free estimates

Emergency services offered

"Floyd was very professional and explained what he was doing in detail. I do have another job with him concerning my vents and ducts. I would recommend him."
Dryer Rescue
Caging off the vents
Dryer rescue
Mold remediation
Mold remediation

+5

17 neighbors recently requested a quote
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Avatar for Peachtree Cleaning
Peachtree Cleaning
5.0(
2
)
Air Ducts & Vents - Clean

Serving Johnston, SC and surrounding areas

Approved

In business since 2008

Free estimates

Warranties offered

"I was skeptical at first, but the tech actually did an amazing job. I have gotten my air ducts cleaned before, but I never noticed a difference in the air flow or air quality in the house. This time I did. Definitely recommend them to any and everyone I know! Technician was very knowledgeable as well and taught me a lot about air ducts and mold. Amazing service!"
Gutter cleaning Augusta
Gutter cleaning
Air Duct cleaning Augusta
Air Duct cleaning
Air Duct cleaning

+1

Response time30 mins
Response rate100%
Recommended by100%of homeowners
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Kails Cleaning
New to Angi
Air Ducts & Vents - Clean

Serving Johnston, SC and surrounding areas

Approved

I have years of experience providing dependable and detailed cleaning services. I serve Columbia, Lexington, and surrounding areas and don’t mind traveling for jobs. I specialize in general cleaning, deep cleaning, move-in/move-out cleaning, kitchens, bathrooms, dusting, vacuuming, mopping, and sanitizing. I take pride in my work and treat every home with care and respect. My goal is to provide reliable, quality service and leave every space fresh, clean, and comfortable.

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Showing 1-10 of 98
Air Conditioning questions, answered by experts

Setting your AC unit to 78 degrees can, indeed, help you save energy. In fact, according to experts, every degree you turn the unit up could save you between 1% and 3% on your energy bills. That said, turning your unit off entirely while you’re out might actually be less efficient than keeping it on at a higher temperature. Why? The unit will need to work extra hard to cool the house back off again after all those hot hours. 

It’s not customary to tip HVAC technicians, and most professionals won’t expect it. However, it’s a nice way of showing your appreciation for the work they do, especially if they come out in inclement weather or on a weekend or holiday to fix an emergency issue if your heat or AC goes out in extreme temperatures. A good tip would be between 10% to 20% of the total bill, depending on how above and beyond the tech goes for your repair and on the total cost of your HVAC repair or service. For something like a routine tune-up or scheduled maintenance, tips aren’t expected.

An HVAC system typically lasts between 10 and 30 years, with an average lifespan of 15 to 25 years. The longevity of the system is influenced by factors such as the quality of the unit, usage frequency, local climate, and how well it is maintained. Regular maintenance, including cleaning, filter replacements, and professional inspections, can help maximize its lifespan. Different components within the system have varying life expectancies. For example:

  • Furnaces: 15 to 30 years

  • Boilers: 20 to 35 years

  • Air Conditioners (AC units): 12 to 20 years

  • Heat Pumps: 10 to 20 years

  • Ductless Mini-Splits: 10 to 30 years

To keep a window air conditioner in good working order, you should clean the filter regularly, inspect the seals, and store the unit properly during the off-season.

One of the fastest ways to unfreeze an AC unit is to turn off the unit and, if it’s warm outside, use the fan-only mode to help blow warmer air through the unit to speed up the defrosting process. While it may be tempting to use a hair dryer to defrost the air conditioner, that high heat can damage the coils.

After defrosting, if you can safely solve the issue with a fix like changing the filter, go ahead and do so. Otherwise, call in a pro before turning your AC back on.

The Johnston, SC homeowners’ guide to air conditioning services

From average costs to expert advice, get all the answers you need to get your job done.

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