Radon has become an increasingly important factor in real estate transactions across Canada — and Windsor and Essex County are no exception. Whether you're buying, selling, or a realtor representing clients, understanding radon can save you from costly surprises and protect the health of everyone involved.
Why Radon Matters in Real Estate
A home with elevated radon levels isn't necessarily unsellable — but it does need to be addressed. Informed buyers are increasingly requesting radon test results as part of their due diligence, and homes with elevated levels and no mitigation can become a negotiating point or even a deal-breaker.
The good news is that radon is very fixable. A professionally installed mitigation system typically resolves the issue and can actually become a selling feature — demonstrating that the home has been tested, the problem identified, and professionally resolved.
For Home Buyers
Ask for a radon test result
Before closing on any home in Windsor or Essex County, request a radon test result from the seller. If one hasn't been done, consider making it a condition of your offer or arranging for testing yourself. A long-term test (91+ days) gives the most accurate picture, but short-term tests can be done during the offer period.
What to do if levels are elevated
If the test comes back above 200 Bq/m³, you have several options:
- Request the seller mitigate before closing
- Negotiate a reduction in purchase price to cover mitigation costs
- Plan to mitigate after purchase — mitigation typically costs a fraction of the home's value
- Walk away if the seller is unwilling to address it
Don't let elevated radon automatically kill a deal — it's a solvable problem. But do make sure it's addressed one way or another.
💡 A home with a professionally installed radon mitigation system is actually a selling point — it shows the previous owner cared about health and safety.
For Home Sellers
Test before you list
The best thing a seller can do is test their home before listing. If levels are low, you have a great talking point for buyers. If levels are elevated, you can mitigate before listing and market your home as radon-mitigated — a genuine value-add in today's health-conscious market.
Disclosure obligations
In Ontario, sellers are required to disclose known material defects in a property. If you're aware of elevated radon levels and haven't addressed them, this may need to be disclosed to buyers. The cleanest approach is to test, mitigate if needed, and have documentation ready to share.
Don't let radon derail your sale
Discovering elevated radon late in a transaction — during a buyer's home inspection, for example — can create unnecessary stress and negotiating leverage for the buyer. Getting ahead of it before listing puts you in control.
For Realtors
As a realtor in Windsor-Essex, understanding radon positions you as a more knowledgeable and trustworthy agent. Buyers and sellers increasingly appreciate agents who can guide them through health and safety considerations — not just the transaction itself.
Home Radon Relief is happy to be a resource for Windsor area realtors. We offer free consultations, competitive pricing, and fast turnaround. If you have clients dealing with a radon situation, reach out — we're here to help.