Protect your family from dangerous radon gas. Licensed and insured radon mitigation professionals serving Billings and all of Yellowstone County.
Comprehensive radon solutions for homes and businesses in Billings, MT and surrounding areas.
Accurate short-term and long-term radon testing to measure your home's radon concentration and determine if mitigation is needed.
Learn MoreEPA-recommended active soil depressurization systems that reduce radon levels below the 4 pCi/L action level, guaranteed.
Learn MoreProfessional installation of complete radon reduction systems tailored to your home's foundation type and layout.
Learn MoreThe gold standard in radon mitigation — sub-slab depressurization draws radon from beneath your foundation before it enters your home.
Learn MoreFast replacement of worn-out or failed radon fans to restore your mitigation system's effectiveness and protect your family.
Learn MoreFollow-up testing after system installation to verify radon levels are safely below the EPA action level of 4 pCi/L.
Learn MoreTrusted by homeowners across Yellowstone County for reliable, guaranteed radon solutions.
Fully licensed and insured radon mitigation professionals following EPA and state guidelines for every installation.
We guarantee radon levels below 4 pCi/L after installation or we return to fix it at no additional charge.
Many installations completed in a single day. Your home is fully usable immediately after — no waiting.
No-obligation radon assessments. We inspect your home, explain your options, and provide upfront pricing.
Real results from real customers across Yellowstone County.
“Our radon levels went from 8.2 pCi/L to 1.1 after installation. The crew was professional, quick, and left everything clean. Highly recommend to any Billings homeowner.”Sarah M. — Billings, MT
“Called in the morning, they were out the same afternoon. System was installed and tested within 6 hours. Our radon is now well below 2 pCi/L. Great value.”Mike T. — Laurel, MT
“We were selling our home and needed radon mitigation fast. They handled everything, provided the post-test report, and our buyer was satisfied. Saved the sale.”Jennifer L. — Lockwood, MT
Common questions about radon mitigation in Billings, MT.
Montana has elevated radon levels statewide. Yellowstone County tests above the EPA action level of 4 pCi/L in many homes. We recommend testing any home and mitigating at 4 pCi/L or above.
Radon mitigation in Billings typically costs $900–$1,600 for a standard sub-slab depressurization system. Cost depends on foundation type and radon concentration. Post-mitigation testing is included.
Most installations take 4–6 hours in a single day. Your home is fully usable immediately after. We retest 24–48 hours post-installation to verify results.
Yes — we serve all of Yellowstone County including Laurel, Lockwood, Shepherd, Park City, Columbus, and can travel to Red Lodge, Hardin, and Roundup.
Yes — we guarantee our systems reduce radon below 4 pCi/L or we return to fix it at no charge. Included follow-up testing confirms results.
Fill out the form or call us directly. We respond within 1 hour during business hours.
contact@rimrockradon.com
Billings, MT & all of Yellowstone County
Mon–Sat: 7 AM – 7 PM