JK Radon, LLC
Verified Pro
9½+ years online5.0(120)
Radon Mitigation in Rockville, MD
Compare 26 radon mitigation contractors near you in Rockville and surrounding area with an average rating of 4.9/5. Get free quotes, read reviews, and find the right pro for your project.
Last updated March 23, 2026
Most pros respond within 2–24 hours
Verified Pro Installers
jkradon.com
Radon Resolvers, LLC
Verified Pro
7½+ years online5.0(292)
Protect The Investment, LLC
Verified Pro
5+ years online4.9(71)
Radon Screening
Verified Pro
~6 years online4.9(15)
Top to Bottom Services
Verified Pro
21½+ years online4.9(2299)
Other Businesses in This Area
Roberts Radon
10+ years onlineEnvirolabs Inc
5.016½+ years onlineHome Safe Mold Remediation LLC / A&R
5.0Radon Installation Contractors LLC
5.0~17 years onlineRadon Testing Montgomery County
5.0~9 years onlineRaSolve Radon Remediation LLC
5.0ROBERTS RADON, LLC
5.010+ years onlineRodo Radon
5.0Alfa Air Agency -Radon Mitigation | Radon Testing MD VA DC
4.96½+ years onlineG.M.D. Construction inc.
4.919+ years onlineRadon Mitigation of Maryland
4.98½+ years onlineSmart Home Inspects
4.910½+ years onlineRadon Abatement Services LLC
4.8~25 years onlineRadon Abatement Systems
4.76½+ years onlineRadon Mitigation in Nearby MD Cities
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About Radon Mitigation in Rockville
Radon mitigation reduces radon gas levels in buildings, typically through sub-slab depressurization — a system that creates suction beneath the foundation to draw radon gas out before it enters living spaces. Radon is the second leading cause of lung cancer after smoking.
Typical costs: A standard sub-slab depressurization system runs $800–$2,500 installed. More complex situations (crawl spaces, multiple suction points) can be $2,000–$4,000. Radon testing before and after is typically included.
Common projects include:
- Sub-slab depressurization system
- Crawl space radon mitigation
- Radon testing and monitoring
- Sump pit sealing and venting
- New construction radon-resistant design
Many states require radon mitigation contractors to be specifically certified. Permits may be required for the system installation depending on jurisdiction.
Frequently Asked Questions
- How much does radon mitigation cost in Rockville?
- Most homes can be mitigated for $800–$2,500 with a sub-slab depressurization system. This includes the fan, PVC piping, sealing, and post-mitigation testing. The system runs continuously and costs about $50–$100/year in electricity. More complex jobs (crawl spaces, multiple foundation types) run $2,000–$4,000.
- How do I find a reliable radon mitigation contractor in Rockville?
- Use a certified radon mitigator (NRPP or state-certified). They should test before and after installation and guarantee results below 4 pCi/L (the EPA action level). Ask about fan warranty and what happens if the system doesn't achieve target levels.
- Do I need a permit for radon mitigation in Rockville?
- Requirements vary by state. Many states require radon contractors to be certified (not just licensed). Some require permits for the penetration through the foundation slab. Check your state's radon program for specific requirements.
About NeedInstall
NeedInstall helps connect customers with local installation professionals across Rockville and surrounding communities. Featured contractors have claimed their profile and verified their business information. Listings marked as "Verified Pro" have been confirmed by the business owner.