Alexs Radon Service Llc
Verified Pro
7½+ years online5.0(35)
Radon Mitigation in Germantown, MD
Compare 25 radon mitigation contractors near you in Germantown and surrounding area with an average rating of 5.0/5. Get free quotes, read reviews, and find the right pro for your project.
Last updated April 9, 2026
Most pros respond within 2–24 hours
Verified Pro Installers
alexsradon.com
Essential Inspection Services
Verified Pro
3½+ years online5.0(390)
Peak Environmental
Verified Pro
20½+ years online5.0(34)
U.S. Radon Measurements
Verified Pro
11 mo online5.0(2)
Top to Bottom Services
Verified Pro
21½+ years online4.9(2299)
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Roberts Radon
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5.016½+ years onlineMold and Radon Specialists
5.0Radon Installation Contractors LLC
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5.0~9 years onlineRaSolve Radon Remediation LLC
5.0Rn Home Tech
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.
4.919½+ years onlineNextDay Inspect Home Inspection Services
4.9~13 years onlineRadon Mitigation of Maryland
4.98½+ years onlineSmart Home Inspects
4.9~11 years onlineAtlantic Radon
4.8~7 years onlineRadon Abatement Services LLC
4.825 years onlineRadon Mitigation in Nearby MD Cities
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Radon Mitigation in Germantown, MD
Germantown radon mitigation specialists in this directory cover central Germantown, Clarksburg-adjacent neighbourhoods, and surrounding Montgomery County. Maryland falls in EPA Radon Zones 1 and 2 — Montgomery County is Zone 1 and most Germantown homes test elevated. Sub-slab depressurization on a typical Germantown basement home runs $1,400-$2,800 installed.
Maryland Department of the Environment publishes county-by-county radon zone maps. Real-estate transactions in Germantown almost universally include radon testing — most buyers expect a 48-hour test and may negotiate mitigation as a contingency.
Frequently Asked Questions
- Do most Germantown homes have radon issues?
- Yes — Montgomery County is EPA Zone 1, and the majority of Germantown homes test above 4 pCi/L. Test before buying and consider mitigation pre-emptively.
- How long does Germantown radon mitigation take?
- Sub-slab depressurization is a 1-day job for most basement homes. Post-mitigation testing confirms levels below action limit. Total turnaround is typically 3-5 days.
- What about radon in Germantown crawlspaces?
- Crawlspaces require sealed vapor barrier (12-20 mil), sealed perimeter, and active sub-membrane vent fan. Cost runs $2,400-$4,000.
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NeedInstall helps connect customers with local installation professionals across Germantown 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.