Radon Testing in Howard County, Maryland
Need a radon test in Howard County? RADON & CO provides fast, NRPP-certified 48-hour radon testing for homeowners, real estate transactions, rentals, property managers, and commercial projects.
Radon testing in Columbia, Ellicott City, and beyond
Howard County's two best-known communities have very different housing profiles. Columbia was built as a planned community organized into distinct villages, with a mix of detached homes, townhomes, and condos or apartments depending on the village — testing needs vary accordingly, from basement placement in a detached home to unit-specific placement in a condo building. Ellicott City's historic Main Street district, by contrast, is one of the oldest settlements in Maryland, with older masonry and mixed-foundation buildings where professional evaluation matters more than in newer construction.
RADON & CO provides project-based radon testing in Howard County — Columbia, Ellicott City, Elkridge, Clarksville, and Fulton — for residential, real estate, rental, and commercial clients, using the same NRPP protocol and minimum 48-hour closed-house test we run in Montgomery County. Pricing starts at $125 and adjusts for distance and access; contact us to confirm availability for your address.
Pricing
Pricing for this area typically starts at $125 depending on distance, access, and scheduling. Contact us to confirm availability for your address.
Services in and near Howard County
- Residential radon testing
- Real estate radon testing
- Rental property testing
- Commercial radon testing
- Property manager and portfolio testing
Nearby areas we also serve
How the 48-hour test works
We schedule the appointment, place a professional digital radon monitor, measure during the testing window, retrieve the device, and deliver an electronic report.