
Watertown Radon Mitigation Services
Your Safety Is Our Mission
Since 1996, Carew Heating & AC has been committed to keeping Wisconsin families safe and comfortable. While we're best known for our heating and air conditioning services, our dedication to indoor air quality naturally led us to address one of the most serious health threats facing people in our area: radon gas.
For comprehensive radon testing and mitigation in Watertown, turn to our licensed and insured team. When it comes to radon safety, experience matters. With our decades-long commitment to serving the community, you can count on us for reliable services to protect your comfort.
Call (920) 626-3962 or reach out online to learn about our radon services and schedule an appointment. We are proud to serve customers throughout Watertown, Waukesha, Sun Prairie, Lake Mills, Oconomowoc, and the surrounding areas.
When to Call for Professional Radon Testing
The Wisconsin Department of Health Services recommends that homeowners, landlords, property managers, and others test properties for radon, regardless of age, construction type, or location. Radon levels can vary dramatically even between neighboring buildings.
Key testing situations include:
- Buying or selling a home – Many lenders and buyers now require radon testing
- Haven't tested in 2+ years – Radon levels can change over time
- After major renovations – Construction can alter how radon enters your home or commercial property
- Moving into a new home – Previous testing may be outdated or nonexistent
- Family health concerns – Unexplained respiratory issues warrant immediate testing
It is important to note that professional testing is most accurate during colder months when buildings are sealed up. However, we can perform testing year-round using proven methodologies.
How Carew Heating & AC Can Protect You from Radon
Comprehensive Testing Services
Our certified technicians use state-of-the-art equipment to provide accurate, reliable radon measurements. We follow strict protocols to deliver trustworthy results.
Expert Mitigation Solutions
If we detect elevated radon levels, we can implement custom mitigation solutions. These may include crawl space sealing and ventilation, foundation sealing, or designing and installing a radon mitigation system.
Complete System Integration
As HVAC experts, we understand how radon mitigation systems interact with your building's heating, cooling, and ventilation systems. This knowledge allows us to develop solutions that effectively remove radon while maintaining your comfort and energy efficiency.
Ongoing Protection & Monitoring
We don't just install and walk away. Our radon mitigation systems come with comprehensive warranties, and we provide ongoing monitoring to make sure you stay protected long-term.
Radon Is a Major Concern in Wisconsin

Hear From Our Happy Customers
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“Great company. The technicians are courteous and efficient. Matt did a great job and explained everything to me.”Kenneth K.
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“Matt did a great job with my air conditioning cleaning. I recommend signing up for their comfort plan helps keep everything running well and service is on time. Matt does great with tolerance with my dogs; they always want to help.”Dave C.
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“Matt was very pleasant to work with. He arrived on time and was very professional. He answered all my questions and offered some good advice. Definitely will be using Carew again. Thank you.”Rick E.
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“Alex did a great job explaining what he was doing and did the tune-up/yearly maint. in a timely manner. And was very nice.”Christian S.
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“Carew is the best! Our air went out on the hottest day of the year, and they came right away to help us! I am so grateful for their professionalism, quick service, and great prices!!”Jennifer R.
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“Carew installed a new furnace for me. The installation was quick and efficient. Everything went well, and it's running great.”Michael M.
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“Carew Heating & AC Inc has been very helpful in sorting my heating and AC needs in my home that I recently purchased. Rob, the Technician was very polite, informative, and thorough.”Peter R.
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“We had a fantastic experience with Ben and Alex today! They arrived right on time, were incredibly professional, and clearly knew their stuff. It’s not every day you find a team that brings both expertise and a great sense of humor into your home.”Aaron J.
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“I have been a customer of Carew Heating and Air since we moved to Watertown 5 plus years ago. We are always beyond pleased with our service needs. They are experts. I highly recommend Carew! Thank you!”Lee K.