Who Pays for Radon Mitigation: Buyer or Seller?
The inspection report just came back, and the home tested above 4.0 pCi/L for radon. The deal isn't dead, but a $1,500 question remains: who pays to fix it?
The Standard Practice in Real Estate
In the majority of US real estate transactions, the seller pays for the radon mitigation system. Because radon is classified as a hazardous health defect (like mold or a failing foundation), buyers have strong leverage to demand it be fixed before closing.
Why Sellers Usually Concede
Once a seller is made aware of a high radon test, standard real estate law requires them to disclose this known defect to any future potential buyers if the current deal falls through. Knowing this, most sellers agree to either install the system or offer a closing credit, rather than starting over with a new buyer who will inevitably demand the same fix.
💡 Negotiation Options
- Option 1: Seller Installs Before Closing. The seller hires a contractor and pays out of pocket. Buyer tip: Insist that a certified NRPP/AARST professional is used, so the seller doesn't hire a cheap, unqualified handyman.
- Option 2: Closing Credit (Escrow). The seller gives the buyer a $1,500 credit at closing. Seller tip: This is often better, as you don't have to deal with contractors while trying to pack and move.
- Option 3: Cost Sharing. In a highly competitive "seller's market," the buyer and seller may agree to split the cost 50/50.
"As-Is" Sales and New Construction
If you are purchasing a home listed "As-Is" or undergoing an estate sale, you (the buyer) will likely bear the cost. Additionally, many new construction builders are not legally required to install active radon mitigation unless mandated by local city code, leaving the buyer responsible after moving in.
Get a Quote for Your Negotiation
If you need to ask for a seller credit, you need to know exactly how much the system will cost in your specific county.
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