RadonProsCertified Directory

Radon Pros in Maryland

32 contractors

EPA zone context: Western Maryland is Zone 1 with significant radon risk. The Baltimore metro area is Zone 2. The Eastern Shore is Zone 3.

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 in Maryland

Silver Spring (5)Gaithersburg (3)Lisbon (3)Germantown (2)Leonardtown (2)Olney (2)Annapolis (1)Bel Air (1)Bethesda (1)Boonsboro (1)Clarksburg (1)Elkton (1)Ellicott City (1)Finksburg (1)Frederick (1)Glenwood (1)Jefferson (1)Mount Airy (1)Potomac (1)Rockville (1)Severn (1)

Related Radon Guides

How to Test for Radon

Testing methods, closed-house conditions, and how to read your results.

Foundation Types & Radon

How basements, slabs, and crawlspaces affect radon entry and system design.

Radon in Real Estate

What buyers and sellers should expect during testing, mitigation, and closing.

Radon System Maintenance

Maintenance schedules, fan replacement, and keeping your mitigation system effective.