EPA zone context: Montana includes extensive Zone 1 coverage, especially in mountain valleys and many western counties.
5.0 (27 Google reviews)
Serving Anaconda, Montana and surrounding areas with radon mitigation, radon testing, vapor barrier installation, post-mitigation verification testing. Handles slab-on-grade foundations, uses sub-slab depressurization, and family-owned business.
5.0 (7 Google reviews)
5.0 (7 Google reviews)
This Billings, Montana-based dedicated radon contractor specializes in radon mitigation, radon testing, commercial radon services, diagnostic radon testing. Holds NRPP Radon Mitigation Specialist and NRPP Radon Measurement Professional certification through the National Radon Proficiency Program. Established in 2003. Handles slab-on-grade foundations, and uses sub-membrane depressurization.
5.0 (10 Google reviews)
5.0 (76 Google reviews)
4.9 (20 Google reviews)
5.0 (2 Google reviews)
A dedicated radon contractor serving Bozeman, Montana, offering radon mitigation, radon testing, commercial radon services. NRPP certified: NRPP Radon Measurement Professional.
4.8 (19 Google reviews)
Based in Corvallis, Montana, this dedicated radon contractor provides radon mitigation, radon testing. Certified as NRPP Radon Mitigation Specialist and NRPP Radon Measurement Professional by NRPP. Handles slab-on-grade foundations.
A dedicated radon contractor serving Great Falls, Montana, offering radon mitigation, radon testing, commercial radon services. Holds NRPP Radon Mitigation Specialist and NRPP Radon Measurement Professional certification through the National Radon Proficiency Program. With 20 years in the field. Veteran-owned business, and licensed and insured.
5.0 (36 Google reviews)
Radon levels vary house-to-house even in the same city. Testing your own home is the only reliable way to know your risk.
Testing methods, closed-house conditions, and how to read your results.
How basements, slabs, and crawlspaces affect radon entry and system design.
What buyers and sellers should expect during testing, mitigation, and closing.
Maintenance schedules, fan replacement, and keeping your mitigation system effective.