Radon Testing & Mitigation in Chestermere

Onyx Radon · Chestermere, Alberta

Chestermere is a lake community just east of Calgary that has grown quickly from a summer-cottage destination into a city of predominantly newer homes and modern developments. Those homes are typically built tightly to today's energy-efficiency standards — comfortable and efficient, but also prone to trapping soil gases like radon indoors. Since the Alberta prairie sits on uranium-bearing soils and bedrock that can produce elevated radon, a new home near the lake still deserves a test.

Radon in Chestermere's newer lakeside homes

Much of Chestermere's housing has gone up in recent years across communities like Westmere, Rainbow Falls and Kinniburgh, meaning a large share of homes are modern, well-insulated and tightly sealed. That construction is great for energy bills, but reduced natural air exchange can let radon accumulate in basements and lower levels. Being near the lake makes no difference to radon, which rises from the soil and bedrock beneath the foundation rather than from surface water.

It's a common assumption that a new home is automatically a safe one, but a build's age doesn't predict its radon level — soil conditions and how tightly the home is sealed both matter. Health Canada recommends taking action above 200 Bq/m³, and the only way to know your number is to measure, ideally with a long-term test of 90 days or more. If a Chestermere home tests high, sub-slab depressurization reliably brings levels down.

Why Chestermere homeowners choose Onyx

Certified, local, honest

Chestermere is mostly newer, tightly sealed homes that can trap radon
Lakeside location doesn't lower radon — it rises from soil, not water
A brand-new build still needs testing; age doesn't predict the level
C-NRPP-standard testing and gold-standard mitigation if required

One team, test to fix

We test your Chestermere home to the C-NRPP standard, explain the result in plain language, and — if it's above the 200 Bq/m³ guideline — design a sub-slab depressurization system and re-test to prove it worked.

See mitigation

FAQ · Radon in Chestermere

Chestermere radon questions

My Chestermere home is brand new — do I still need a radon test?

Yes. A new home's age tells you nothing about its radon level, because that depends on the soil beneath it and how tightly it's sealed. In fact, modern energy-efficient homes can trap radon more readily than draftier older ones. The only way to know your Chestermere home's level is to measure it with a long-term 90-day test.

Does living by Chestermere Lake affect radon levels?

No. Radon comes from uranium breaking down in the soil and bedrock under your foundation, not from the lake or any surface water. Proximity to the water doesn't raise or lower your risk. Every Chestermere home, lakeside or not, should be tested directly, and we measure to the C-NRPP standard before recommending any action.

A newer Chestermere home by the lake is a great place to live, and a radon test is a simple way to make sure the air inside is as good as the view outside. We work to the C-NRPP standard and keep results clear. Request a free quote and we'll help you check your home's level and lower it if needed.

We also serve nearby: Airdrie · Cochrane · Okotoks and all of Calgary.