Radon gas and home buying/selling in Nova scotia

Radon Gas                                                                                   

Radon gas is becoming a hot real estate topic in HRM. Radon gas exposure is the 2nd leading cause of lung cancer after smoking. Radon is invisible, you can’t see it, smell or taste it and it can get into your home undetected. It is often found in lower levels of homes where it can seep into the home through cracks, gaps around pipes and construction seams. The current Canadian Guideline for radon is 200 becquerels per cubic meter (Bq/m3).  Testing in some areas of HRM have detected levels of almost 2000,Bg/m3 which is extremely dangerous. They also recommend of a test period of at least 90 days.
So how do we deal with Radon in a real estate sale? We can put a Radon testing clause in the agreement to purchase. This gives the buyer the option to complete the test or not. There are companies that test for Radon for a fee of usually about $300. We have names we can recommend to you. These companies put a testing machine in the house and leave it there for usually 3 days. They then read the results and make a recommendation for how to proceed. If the test results show levels higher than the guidelines, but not substantially higher, the recommendation is typically to do a longer 90 day test to confirm the levels. This involves the buyer buying a do it yourself test kit and leaving it in the house for 90 days. This test kit is then mailed away for results. This test is completed after the buyer has bought and closed the property.
If higher levels of Radon gas are found to be substantially higher , say for example 1,000 becquerels per cubic meter (Bq/m3),  they usually recommend remediation of the Radon.  The typical remediation is to have a remediation company install piping to remove the gas, usually from your basement. The cost varies but is typically between $1200 and $2000. Often the seller will be asked to pay for the remediation and have it completed before the closing of the property. Sellers sometimes agree to pay for it but not do the work. This is done as either a credit on closing or a price reduction on the sale. They don't always agree to pay anything so this becomes a negotiation item.
It is important to understand that some areas of HRM have a higher risk of Radon than others. There is a map showing the risk in all areas of HRM. This map can be found at https://fletcher.novascotia.ca/DNRViewer/?viewer=Radon.  You can either zoom in on the area where the property you are buying is located or search by address. You can then assess the risk and decide whether you hire a company to do a 3 day test for Radon as part of your sale or wait until after the closing and complete a 90 day test.
We are recommending that all buyers test their homes for Radon. If the Radon risk map showing high risk we recommend that you test as part of your sale. If it is low risk we discuss options with the buyer and buyers often decide to test after the sale has closed. You can do the test  yourself by buying a test kit at the NS Lung Association at 6331 Lady Hammond Road in Halifax 902-443-8141. The cost is about $40. You can also buy a test kit at Home Depot. You simply put the kit in your home for a period of time, 90 days or longer, and then mail the results away for analysis.
Radon gas should not be ignored. It is dangerous. Testing during a real estate sale is problematic. It is not realistic to ask the seller to wait for 90 days for you to do a 90 day test, which is the minimum time frame that is recommended. So the only option is assess your risk and if you deem it high enough, then do a 3 day test, even though the 3 day test might not accurately show the actual average levels of Radon gas.
We can discuss this in further detail when we meet and you can do some research online as well.