Commercial
Residential
Radon Testing & Mitigation
Certified Radon Measurement and Reduction Services
Radon is a colorless, odorless, and tasteless gas that can accumulate in your home without warning. It is the second leading cause of lung cancer in the United States. Because you cannot detect it with your senses, the certified technicians at Active Heating are here to help you ensure your home is safe. We provide precise testing and effective mitigation systems to protect your family’s health.

Why Test for Radon?
Since radon has no immediate physical symptoms or warning signs like a broken appliance, it is crucial to know when to check your levels. You should schedule a test if:
You have never tested your home
It has been over two years
You are buying or selling a home
You have renovated
Your neighbors found high levels
You spend time in the lowest level
We know upgrading is a big investment and that is why we offer financing you can easily apply for today.

Comprehensive Radon Solutions
We don't just find the problem; we fix it. Our team is trained in both the detection and reduction of radon gas for all types of homes.
Protect Your Family Today
Don't guess when it comes to the air you breathe. We are prepared to conduct accurate testing and, if necessary, install a lasting solution to keep your indoor air safe.


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Watertown
(605) 882-2663
151 N. Maple
Watertown, SD 57201
24/7 Emergency Service Available
Office Hours
Monday – Thursday | 8AM – 5PM
Friday | 8AM – 4PM
Brookings
(605) 692-4241
3024 Prince Drive
Brookings, SD 57006
24/7 Emergency Service Available
Office Hours
Monday – Thursday | 8AM – 5PM
Friday | 8AM – 4PM
Service Areas
Watertown
Brookings
Milbank
Volga
Webster
Clear Lake
Clark
De Smet
Arlington
Estelline
Lake Norden
Madison
Heating
Furnace
Heat Pumps
Gas Fireplace Repair
Boilers
Geothermal Heat Pumps
Radiant Floor Heat
Boilers
Cooling
Air Conditioning Installation
Air Conditioning Repair
Air Conditioning Replacement
Ductless Systems
Plumbing
General Repairs
Water Heaters
Tankless Water Heaters
Garbage Disposals
Sump Pumps
Water Line Piping
Gas Piping
Indoor Air Quality
Air Cleaners
Radon Testing
Humidification
De-Humidification
Air Exchangers