RI
TestingCommercial
Certified RMS/RMP
Radon Pros in Maryland
27 contractorsEPA zone context: Western Maryland is Zone 1 with significant radon risk. The Baltimore metro area is Zone 2. The Eastern Shore is Zone 3.
HO
Handyman On Call LLC
4.6 (837 Google reviews)
Certified Professional
Licensed Provider: Benjamins Zonis
Finksburg, MD
TestingCommercial
Certified RMS/RMP
GH
TestingCrawlspaceCommercialVapor Barrier
Certified RMS
GC
MitigationTesting
Certified RMS
RR
Radon Resolvers, LLC
5.0 (288 Google reviews)
Certified Professional
Licensed Provider: Peter Rosecrans
Full Service•Olney, MD
MitigationTestingCommercialSump Pump
Certified RMS5-Year WarrantyLicensed & InsuredFree Estimates
Radon Resolvers, LLC is a dedicated radon services company serving Olney, MD. Services include radon mitigation system installation, mitigation system design. Works with basements, split-level homes. Methods include heat recovery ventilation, passive radon systems. Holds Certified Radon Mitigation Specialist certification. Rated 5.0/5 on Google based on 288 reviews. Offers free estimates, real estate transaction testing, licensed and insured. Provides a 5-year warranty on mitigation systems.
RA
Radon Abatement Services, LLC
4.8 (57 Google reviews)
Certified Professional
Licensed Provider: John S. Swett
Full Service•Silver Spring, MD
MitigationTesting
Certified RMSFree Estimates
Radon Abatement Services, LLC is a dedicated radon services company serving Silver Spring, MD. Services include radon mitigation system installation, mitigation system design. Methods include heat recovery ventilation. Holds Certified Radon Mitigation Specialist certification. Rated 4.8/5 on Google based on 57 reviews. Offers free estimates.
Data provided by Google Maps
State Info
Radon levels vary house-to-house even in the same city. Testing your own home is the only reliable way to know your risk.
Popular Cities for Radon Mitigation in Maryland
Radon mitigation in Silver Spring, Maryland4 local contractors listedRadon mitigation in Germantown, Maryland3 local contractors listedRadon mitigation in Clarksburg, Maryland2 local contractors listedRadon mitigation in Annapolis, Maryland1 local contractors listedRadon mitigation in Bel Air, Maryland1 local contractors listedRadon mitigation in Boonsboro, Maryland1 local contractors listedRadon mitigation in Deale, Maryland1 local contractors listedRadon mitigation in Elkton, Maryland1 local contractors listedRadon mitigation in Ellicott City, Maryland1 local contractors listedRadon mitigation in Finksburg, Maryland1 local contractors listedRadon mitigation in Frederick, Maryland1 local contractors listedRadon mitigation in Gaithersburg, Maryland1 local contractors listedRadon mitigation in Glenwood, Maryland1 local contractors listedRadon mitigation in Highland, Maryland1 local contractors listedRadon mitigation in Jefferson, Maryland1 local contractors listedRadon mitigation in Leonardtown, Maryland1 local contractors listedRadon mitigation in Lisbon, Maryland1 local contractors listedRadon mitigation in Olney, Maryland1 local contractors listedRadon mitigation in Potomac, Maryland1 local contractors listedRadon mitigation in Rockville, Maryland1 local contractors listedRadon mitigation in Severn, Maryland1 local contractors listed
FAQ: Radon Mitigation in Maryland
Is radon a concern in the Baltimore area?
Baltimore City is Zone 2, but western suburbs like Ellicott City and Columbia can test higher. Always test regardless of zone.
How much does radon mitigation cost in Maryland?
Most homeowners in Maryland see mitigation quotes in the low-thousands, but the final cost depends on foundation type, fan location, and pipe routing complexity. A cost calculator can help you benchmark estimates before requesting bids.
Do I need radon testing in Maryland before hiring a contractor?
Yes. A valid short-term or long-term test is the fastest way to confirm if mitigation is needed and to scope the right system design.
What radon level is dangerous in Maryland?
EPA recommends action at 4.0 pCi/L, and many homeowners choose to reduce levels even below that threshold. Western Maryland is Zone 1 with significant radon risk. The Baltimore metro area is Zone 2. The Eastern Shore is Zone 3. ZIP-level lookup tools are useful for local context, but home testing is still required.
How do I choose a certified radon contractor in Maryland?
Look for current NRPP or NRSB credentials, ask for post-mitigation test expectations, and confirm local compliance details. Maryland does not require state-specific radon licensing, but the Maryland Department of the Environment maintains a voluntary radon program.
State Resources for Maryland
Radon mitigation cost in Maryland
Estimate likely project pricing by foundation type and system complexity.
Radon testing guide for Maryland homes
Learn when and how to test, plus how to interpret pCi/L results.
Radon levels and EPA zones in Maryland
See how state-level risk varies and what zone maps can and cannot tell you.
ZIP-level radon risk in Maryland
Check projected local risk by ZIP code before you request quotes.