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Verified Reviews for Air Conditioning pros in Keystone, SD

*The Angi rating for Air Conditioning companies in Keystone, SD 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 Keystone, SD 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 November 11, 2023

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Avatar for Climate Control Systems and Service, LLC
Climate Control Systems and Service, LLC
4.8(
5
)
Central A/C - Install - For BusinessCentral A/C - Service or Repair - For Business

Serving Keystone, SD and surrounding areas

Approved

In business since 2011

Free estimates

Credit card accepted

"Troy and Matt do everything perfectly and on time. That is their goal and the meet it. They are amazing."
Response time1 day
Recommended by100%of homeowners
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Strong Comfort Systems LLC
5.0(
2
)
Central A/C - InstallCentral A/C - Service or RepairDuctless Mini-split A/C - Install or Replace

Serving Keystone, SD and surrounding areas

Approved

In business since 2025

Free estimates

We invite you to experience a tradition of customer satisfaction that will exceed your greatest expectations. Our professionalism and quality workmanship will accurately reflect your taste and lifestyle. From conception to completion, we work with you until the job is done. We are ethical, honest, and easy to communicate with. \nCall us today you'll be pleased you did. Thank you

Response time3 days
Response rate85%
4 neighbors recently requested a quote
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Southern Hills Heating & Cooling LLC
New to Angi
Central A/C - InstallDuctless Mini-split A/C - Install or Replace

Serving Keystone, SD and surrounding areas

Approved

In business since 2025

Free estimates

Credit card accepted

We take great pride in our experience, expertise, quality, and customer service that we provide to meet the consumer’s needs. It is our mission to provide excellent workmanship and complete customer satisfaction from start to completion of a project. In order to understand the needs and expectations of our customers, we take great care to work and communicate with every customer in a professional manner. Our reputation is based on service, safety, and quality, regardless of how large or small the job.

2 neighbors recently requested a quote
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Susan Martin
New to Angi
Air Ducts & Vents - Clean

Serving Keystone, SD and surrounding areas

Approved

Small jobs welcome

Credit card accepted

Offers commercial services

Zoe Life, LLC provides professional handyman and cleaning services tailored for rental properties and commercial office buildings in the Rapid City and Black Hills area. We understand that maintenance and cleanliness are critical to tenant satisfaction, property value, and seamless business operations.\n\nOur Specialized Services Include:\n\nHandyman Services: From routine maintenance and repairs to small renovations, we handle plumbing, electrical, drywall, painting, furniture assembly, and general fix-it tasks.\n\nCommercial & Residential Cleaning: We offer detailed turnover cleaning for rental properties and reliable janitorial services for office buildings, ensuring a clean, safe, and professional environment.\nFully insured and committed to punctuality and quality workmanship, Zoe Life is your single, trusted source for property upkeep. We help landlords and business owners protect their investments.\n\nContact us today for a free, no-obligation estimate.

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Avatar for Dyna-Kleen, Inc.
Dyna-Kleen, Inc.
4.9(
39
)
Air Ducts & Vents - Clean

Serving Keystone, SD and surrounding areas

In business since 1968

Free estimates

Credit card accepted

"They were awesome!!! They showed up when they said they would and were professional every step of the way!! Also our dryer vent proved to be a difficult one and they did what needed to be done including climbing up in the attic!!! Highly recommend!!!!"
Furnace and Duct
Before and after in one picture
Furnace and ducts
Furnace and ducts
air you breath

+4

Response time5 hrs
Recommended by97%of homeowners
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Avatar for Loyal Plumbing Heating and Cooling
Loyal Plumbing Heating and Cooling
4.6(
36
)
Central A/C - InstallCentral A/C - Install - For BusinessCentral A/C - Service or Repair+2 more

Serving Keystone, SD and surrounding areas

In business since 2008

Credit card accepted

Offers commercial services

"Fantastic experience, not only did they check out my water heater the same morning I call, they also had it replaced by early afternoon. I couldn’t be happier. Very friendly service and extremely professional!!"
A/C
Furnace
Water Heater
Response time1 day
Response rate100%
Recommended by34%of homeowners
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Avatar for Premier HVAC
Premier HVAC
4.4(
14
)
Central A/C - InstallCentral A/C - Service or RepairCentral A/C - Install - For Business+2 more

Serving Keystone, SD and surrounding areas

In business since 2023

Free estimates

Credit card accepted

"Justin responded very quickly to our call for needing repair for our central AC system. He was able to identify the issue right away and give us a solution. He got our air working the same day! I would highly recommend Justin for your needs!"
Response time2 days
4 neighbors recently requested a quote
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Avatar for North Alabama Technical Services
North Alabama Technical Services
4.9(
124
)
Central A/C - InstallCentral A/C - Install - For BusinessCentral A/C - Service or Repair+3 more

Serving Keystone, SD and surrounding areas

In business since 2010

Emergency services offered

Credit card accepted

"Mr. Ferrell worked with my husband over the phone to fix the problem. It was surprisingly fast and stress-free. To have the work done remotely in less than an hour was wonderful."
2014 Super Service Award Winner!
Additional Photos
Recommended by97%of homeowners
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Avatar for Apex Aire
Apex Aire
5.0(
6
)
Central A/C - InstallCentral A/C - Install - For BusinessCentral A/C - Service or Repair+2 more

Serving Keystone, SD and surrounding areas

In business since 2024

Free estimates

Credit card accepted

We pride our company on reliability, great communication, integrity, and quality work. We are experts in our trade, and will do our best to keep you as educated as we can on your particular task or project. We look forward to earning your business!

New AC and Coil install
New AC and Coil install
32 neighbors recently requested a quote
Recommended by50%of homeowners
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Air Conditioning questions, answered by experts

A window AC unit is not completely silent. You’ll hear the sound of air blowing, and if you put your ear right up next to the unit, you may hear a slight hiss or gurgle as the refrigerant flows through the system. That said, if your system is making a running water sound, a loud banging sound, a grinding sound, or physically vibrating, you may be facing an issue or malfunction with your AC unit.

Window AC units use a fair amount of electricity, but significantly less than central AC systems. Because they are more energy-efficient for cooling individual rooms or small spaces, their usage is comparatively low. On average, a window AC unit consumes between 500 and 1,400 watts, while a central AC system uses over 3,500 watts—meaning a window unit uses about one-third of the energy. This typically translates to a monthly running cost of $15 to $40, although this can vary depending on external factors.

For the most part, you should leave your AC fan in “auto” mode so that it only runs during a heating or cooling cycle. Keeping it in this position uses less energy, which equals lower utility bills. However, there are some situations where it’s better to leave your AC fan on, including if you have allergies or there are lots of people in your home.

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 Keystone, SD 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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