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Best heating and air conditioning pros near Keystone, SD

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TRUSTED BY KEYSTONE, SD HOMEOWNERS

  • Average homeowner rating star icon4.4
    Average homeowner rating
  • Verified reviews icon68
    Verified heating and air conditioning services reviews

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

Strong Comfort Systems LLC
5.0(
2
)
Central A/C - InstallElectric Furnace / Forced Air Heating System - InstallCentral A/C - Service or Repair+6 more

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%
2 neighbors recently requested a quote
Southern Hills Heating & Cooling LLC
New to Angi
Electric Furnace / Forced Air Heating System - InstallCentral A/C - InstallDuctless Mini-split A/C - Install or Replace+4 more

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.

3 neighbors recently requested a quote
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.

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
Avatar for Loyal Plumbing Heating and Cooling
Loyal Plumbing Heating and Cooling
4.6(
36
)
Central A/C - InstallCentral A/C - Service or RepairDuctless Mini-split A/C - Install or Replace+8 more

Serving Keystone, SD and surrounding areas

In business since 2008

Credit card accepted

Offers commercial services

"Stephen came out to the ranch to fix and replace a vent in the roof of the house. He made several trips out to the ranch. He was to kind, courteous and professional with my 90 year old mom. We could not have asked for a better professional to fix the roof. We highly recommend using Loyal Plumbing for all your household needs and fixing. Thank you so much."
A/C
Furnace
Water Heater
Response time1 day
Response rate100%
Recommended by34%of homeowners
James Air
4.3(
73
)
Air Ducts & Vents - CleanElectric Furnace / Forced Air Heating System - InstallElectric Furnace / Forced Air Heating System - Install - For Business+9 more

Serving Keystone, SD and surrounding areas

In business since 1988

Free estimates

Emergency services offered

"James Air responded immediately to my HVAC inquiry. The owner of the company contacted me. His knowledgeable and experience gives me confidence to pursue them for my project"
Haugo Broadcasting Furnace
Goodman 96% energy efficient furnace with cased A/
Indoor air quality
James Air
Response time8 hrs
Recommended by93%of homeowners
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Heating and Air Conditioning FAQs, answered by experts

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.

Yes, high-efficiency models reduce environmental impact with lower energy use.

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.

A calculation method that your HVAC contractor will use to ensure your system does what it's supposed to is measuring duct output, or its CFM. The calculation requires knowing the cross-sectional area of the ductwork and determining the air speed past any given point within it.

If your AC runs constantly, it could be due to a number of things, including a faulty thermostat, incorrect temperature settings, or broken equipment. Alternatively, you might have an airflow problem (for example, blocked vents or leaky ductwork). Either way, an HVAC pro can identify the specific problem and fix it for you.

The Keystone, SD 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.