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A-1 Radon

A-1 Radon

Coming Soon

  • About Us
  • Who We Serve
    • Homeowners
    • Home Buyers / Sellers
    • Realtors
    • Home Inspectors
    • Property Managers (HUD / Multi)
    • Schools & Daycares
  • Radon Testing
    • Radon Testing
    • Continuous Monitoring
  • Radon Mitigation
    • Radon Mitigation
    • Fan Replacement
    • System Repair
  • Contact
    • Green Bay
    • Appleton
    • Cedarburg
    • Sheboygan
    • Gresham
    • Crivitz
    • Oak Creek
    • Door County

Take The First Step To Protect Your Home From Radon

Please don't hesitate to contact us for any questions about radon or to request a quote. We respond to all inquiries within one business day.

Low-Level Guarantee
Flexible Scheduling
Responsive Service
Phone
(920) 465-9333
Hours
Monday - Friday: 9:00am – 5:30pm
Saturday: 9:00am – 2:00pm
Sunday: (Closed)
Service Area
Serving Green Bay, Appleton, Milwaukee, Shawano, Door County & surrounding areas

Rated 4.8 Stars With 40+ Reviews on Google

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Home Features

Choose Your Location

Green Bay

 

Appleton

 

Cedarburg

 

Door County

 

Oak Creek

 

Crivitz

 

Sheboygan

 

Gresham

 

Why Choose Us

A-1 Radon is the perfect choice for your radon testing and radon mitigation project with our family-owned and operated business, providing customers with the highest quality of service.

Price Match

We’ll match or beat any competitor’s price!

Lifetime Warranty

Peace of mind knowing your system is covered!

Low Level Guarantee
Custom Systems
Affordable Pricing
Qualified & Certified
Friendly, On-Time Techs
  • A-1 Radon has locations in Green Bay and Appleton, with a map indicating that they also provide radon testing and mitigation services throughout the surrounding state
  • Radon mitigation system expertly installed at a local home, with visible vent pipe and fan ensuring safe removal of radon gas

Certifications & Affiliations

We're fully certified and accredited by the National Radon Proficiency Program (NRPP) and the American Association of Radon Scientists & Technologists (AARST).

A-1 Radon proudly displaying their affiliation with the American Association of Radon Scientists and Technologists (AARST) to ensure industry best practices"
A-1 Radon showcasing their National Radon Proficiency Program (NRPP) certification, demonstrating expertise and professionalism in radon testing and mitigation"
A collection of 5-star Google reviews for A-1 Radon, highlighting the company's commitment to customer satisfaction and quality service"
A-1 Radon's fully insured status, providing peace of mind to customers by ensuring that their services are protected and reliable"
Testimonials

What Our Customers Say About Our Radon Services

Adam was very responsive and his installation team did a great job. Top notch work. Follow-up service and questions were also excellent!

Angela T.
Green Bay, Wisconsin

This company is wonderful to work with. They put a radon system in for my daughter and then came and tested my home for free.

Adam O.
Appleton, Wisconsin

Our experience was great throughout the entire process. The system has been installed and levels are down substantially.

Danny W.
Appleton, Wisconsin

These guys are great. Highly recommend! Mitch and David explained everything to me. We found a great place to vent the system through the garage and now the levels are below 1.0 pCi/L.

Kathy K.
Green Bay, Wisconsin

A-1 was so professional and easy to work with. The system was installed fast and the clean up was outstanding. I strongly recommend them for radon mitigation.

David S.
Appleton, Wisconsin

Hands down the best in the industry! A-1 installers can fix anything. My levels were above 14. After the team left the levels are below 1! Great job and great company.

Cameron K.
Appleton, Wisconsin

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Overview

  • About
  • Radon Testing
  • Radon Mitigation
  • Fan Replacement

Details

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Who We Serve

  • Homeowners
  • Home Buyers/Sellers
  • Realtors
  • Property Managers
Contact Us

Green Bay
Appleton
Milwaukee
Shawano
Door County

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