Radon Mitigation Cornwall
Radon is a serious concern across the Ottawa Valley and Outaouais, where uranium-bearing bedrock can release the radioactive gas into homes through foundation cracks. It's the second leading cause of lung cancer — the only way to know your level is to test, and a sub-slab depressurization system is the proven fix. Cornwall sits on the St. Lawrence River with cold, humid winters and many older brick and frame homes built before modern insulation standards. Drafts, high energy bills, and moisture are common — making spray foam, air sealing, and crawlspace encapsulation valuable upgrades for local homeowners.
Why radon mitigation matters in Cornwall
Cornwall sits on the St. Lawrence River with cold, humid winters and many older brick and frame homes built before modern insulation standards. Drafts, high energy bills, and moisture are common — making spray foam, air sealing, and crawlspace encapsulation valuable upgrades for local homeowners.
Northbound Renovations is a local company serving Cornwall and the surrounding Ontario region. We understand the climate, the housing stock, and the building science behind every home — and we back our work with written warranties.
What's included
Radon Mitigation across the region
Radon Mitigation Cornwall — Common Questions
What is radon and why is it dangerous?
Radon is a naturally occurring radioactive gas that forms from the decay of uranium in soil and rock. It seeps into homes through cracks in foundations and is the second leading cause of lung cancer after smoking.
How do I know if my home has radon?
Radon is odourless and invisible — the only way to know is to test. We offer professional radon testing as part of our free home assessment.
What is sub-slab depressurization?
It's the most effective radon mitigation technique. A pipe is inserted through the floor slab and a fan draws radon gas from beneath your home and vents it safely outside before it can enter.
How long does radon mitigation take?
A standard installation takes about one day. Post-installation testing is done to confirm radon levels have been reduced to safe levels.