Michigan radon resources

Who answers what in Michigan

Michigan state radon programme (Department of Environment, Great Lakes, and Energy)

State radon information, testing guidance, county-level radon contacts, and referral to certified professionals.

NRPP or NRSB (national radon proficiency programmes)

Whether a contractor’s certification is current, and in which category.

Your local building department

Permit requirements for the slab penetration and dedicated electrical circuit.

Licensing and credentials

Michigan does not license radon professionals at the state level. The state radon programme directs homeowners toward professionals credentialed through NRPP or NRSB. Ask which certification a bidder holds, confirm it is current, and apply the same scrutiny to the written design and warranty.

What to verify before you hire

• Ask which national certification the contractor holds, and confirm it directly with the programme.
• Ask for a written scope naming suction points, routing, fan model, sealing, warranty, and the verification test.
• Confirm the fan will be mounted outside conditioned living space.
• Confirm proof of insurance.

Disclosure and transactions

Michigan does not have a radon-specific disclosure statute. Radon is addressed through the general Seller’s Disclosure Statement, where sellers report known conditions. Buyers should order their own test during the inspection period rather than relying on seller knowledge, and any mitigation is negotiated between the parties.

Testing resources

Start with a short-term test on the lowest lived-in level under closed-building conditions. The state radon programme publishes testing guidance and maintains county-level radon contacts who can point to local resources.

What this page deliberately does not state

We do not restate NRPP or NRSB requirements or fees, or county-level programme offerings, because those are set by other bodies and change independently. Contact them directly.

Michigan markets and cities we cover

• Grand Rapids & West Michigan — Grand Rapids, Wyoming, Kentwood, Grandville, Holland, Hudsonville

More on Michigan

• For Michigan radon contractors — what we verify before routing a request, and how requests are matched.
• Who licenses radon work — State licence, state certification, or national credential — and what each means when you check a contractor.
• All state resource centres — how the ten states we serve differ on licensing and disclosure.
• How state radon certification differs — the homeowner guide to what a credential actually means.