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Metro Detroit • 1 asbestos & remediation pros profiles
Radon Mitigation in Metro Detroit
Compare verified radon mitigation contractors. Get free quotes, check NRPP or NRSB certification, and hire with confidence.
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1Asbestos & Remediation Pros profiles
6Metro counties
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Top Radon Mitigation Pros in Metro Detroit
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Before you hire
Radon mitigation in Metro Detroit: what to expect
Radon is a radioactive gas from the soil that enters homes through foundation cracks, sump pits, floor drains and crawlspaces. EGLE reports that elevated radon has been found in every Michigan county and that about one in four Michigan homes is expected to exceed the federal action level. EPA recommends fixing a home that tests at or above 4 pCi/L.
Most Metro Detroit basement homes are fixed with sub-slab depressurization: a pipe through the slab or a sealed sump lid, a fan that runs continuously, and a vent pipe that discharges above the roof line. The installer seals major cracks and openings, adds a gauge so you can see the system working, and the home is retested afterward. Crawlspaces typically get a sealed plastic membrane with the same fan and pipe setup.
Always start with radon testing and retest after installation. EGLE notes that almost any radon level can be brought below the action level.
What a proper job includes
- Review of your radon test results and a look at the foundation
- Diagnostic checks of how air moves under the slab
- A suction point through the slab or a sealed sump lid
- A continuous duty radon fan, typically outside the living space
- A vent pipe discharging above the roof line
- Sealing of accessible cracks, gaps and floor openings
- A pressure gauge or alarm and a system label
- A post-mitigation test after the system has run
What drives the price
- Foundation type: basement, slab, crawlspace or a combination
- Material under the slab and how easily air moves beneath it
- Number of suction points needed
- Pipe routing: through the house or up the exterior
- Crawlspace membrane area
- Electrical work for the fan circuit
- Finished basements that limit access
Rebuild Detroit does not publish price ranges. Get written quotes for the same scope and compare.
Licensing and certification in Michigan
EGLE states that radon testers and mitigators are not licensed or regulated in Michigan. It recommends choosing a contractor certified by a national program, the National Radon Proficiency Program (NRPP) or the National Radon Safety Board (NRSB), getting more than one estimate and checking references.
The fan circuit and roof or wall penetrations may need an electrical or building permit depending on your community. Ask the installer and check with your city or township, or BSEED in Detroit.
Verify: MIOSHA asbestos contractor and accreditation search MDHHS certified lead professionals EGLE guidance on radon contractors How We Vet
How to compare quotes
- Confirm your radon level with a proper test before buying a system.
- Ask for the installer's NRPP or NRSB certification and check it with the certifying body.
- Compare where the pipe and fan will go, inside or outside the house.
- Ask what result they expect and whether they guarantee a level below the action level.
- Confirm the post-mitigation test and who performs it.
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Common questions
Radon Mitigation FAQ
EPA recommends fixing a home that tests at or above 4 pCi/L and suggests considering it between 2 and 4 pCi/L.
No. EGLE says radon testers and mitigators are not licensed or regulated in Michigan, and recommends NRPP or NRSB certification.
Most single-family systems are installed in a day. A retest follows once the system has been running.
The fan runs continuously and eventually needs replacement. Check the gauge regularly and retest every couple of years or after major renovations.
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