Radon Contractors in Ellicott City, Maryland
Radon testing and mitigation system installation..
Ellicott City is an affluent Howard County community with premium remodeling contractor demand.
Radon is a naturally occurring radioactive gas that seeps into homes through foundation cracks, gaps, and porous concrete. It's the second leading cause of lung cancer after smoking, and the EPA recommends mitigation for any home testing at or above 4 pCi/L. Radon mitigation typically involves installing an active soil depressurization (ASD) system — a vent pipe and fan that draws radon from beneath the foundation slab and exhausts it above the roofline. Professional radon mitigation systems reduce levels by 80–99% and cost a fraction of what most homeowners expect. Testing is inexpensive and should be done in the lowest livable level of the home.
What to look for when hiring a radon contractor
- ✓Look for NRPP or NRSB certified radon measurement and mitigation professionals.
- ✓Ask about pre- and post-mitigation testing to verify the system achieves levels below 4 pCi/L.
- ✓Confirm the system includes a U-tube manometer or alarm to indicate fan operation.
- ✓Get a written warranty guaranteeing radon levels will remain below 4 pCi/L.
Radon contractors in Ellicott City
No radon contractors found in Ellicott City.
Search all Maryland radon contractors →How much does radon cost in Ellicott City?
Radon test: $100–$200 (professional). Mitigation system: $800–$2,500 installed. Most homes can be mitigated with a single ASD system. Complex foundations or very high levels may require additional work.
Radon contractors in Ellicott City — FAQ
How many radon contractors are in Ellicott City?
EdgeLocal is actively expanding coverage in Ellicott City. Search the full Maryland directory to find radon contractors near Ellicott City.
What is the average rating for radon contractors in Ellicott City?
Radon contractors in Ellicott City are listed on EdgeLocal with ratings sourced from Google Business profiles. Use the directory to compare rated contractors near you.
Do radon contractors in Ellicott City need to be licensed?
Yes. Maryland requires radon contractors to hold a valid state license. Always verify a contractor's license is current and in good standing before signing any contract or allowing work to begin.
How do I find a reliable radon contractor in Ellicott City?
Start by verifying the contractor holds a valid Maryland license. Check their Google rating and read reviews. Get at least three written estimates. Confirm they carry general liability and workers' compensation insurance. Ask for references from recent Ellicott City jobs.