● Ontario Homeowner Alert

Your home may be slowly poisoning your family.

Radon gas is the second leading cause of lung cancer in Canada — and 7 out of 10 Ontario homes have never been tested. It's colourless, odourless, and building up in your home right now.

Health Canada data Takes 5 minutes 100% free guide
Your Radon Risk
Ontario Average
⚠ Elevated
0 Bq/m³Action level: 200+
SafeModerateHigh Risk
3,200
Canadian deaths per year from radon
7 in 10
Ontario homes never tested
$0–$700
Range for radon testing options
#2
Cause of lung cancer in Canada
Download Free Ontario Radon Guide →
3,200
Canadians die annually from radon-induced lung cancer
70%
of Ontario homes have never been tested for radon
200
Bq/m³ — Health Canada action level requiring mitigation
$0–$700
range for radon testing — free DIY to continuous monitoring
1 in 5
Canadian homes exceed the radon action level — more than double since 2012
10.3M
Canadians currently living in homes with dangerous radon levels
16%
of all Canadian lung cancer deaths are caused by radon
90%
reduction in radon levels achievable with a properly installed mitigation system
#1
cause of lung cancer in non-smokers in Canada
3,200
Canadians die annually from radon-induced lung cancer
70%
of Ontario homes have never been tested for radon
200
Bq/m³ — Health Canada action level requiring mitigation
$0–$700
range for radon testing — free DIY to continuous monitoring
1 in 5
Canadian homes exceed the radon action level — more than double since 2012
10.3M
Canadians currently living in homes with dangerous radon levels
16%
of all Canadian lung cancer deaths are caused by radon
90%
reduction in radon levels achievable with a properly installed mitigation system
#1
cause of lung cancer in non-smokers in Canada
The Silent Threat

Radon is like smoking — except you don't know you're doing it.

Radon forms naturally in Ontario's soil and seeps into your home through cracks in the foundation, gaps around pipes, and your sump pit. Once inside, it builds up. There's no smell. No taste. No warning sign.

🛠
Foundation cracks
Ontario's freeze-thaw winters crack concrete foundations every year, creating direct radon entry points.
💧
Sump pits & floor drains
Unsealed sump pits are a direct pathway for radon to enter your living space from the soil below.
🏠
Tight, energy-efficient homes
Modern well-sealed Ontario homes trap radon inside. Better insulation = higher radon buildup.
🥈
Without Testing
Unknown risk. Potential years of exposure. No ability to act.
🏠
After Testing
Know your risk. Take action. Protect your family with confidence.
RADON SOURCE: Uranium decay in Ontario soil & bedrock BASEMENT CRACK ☢ RADON GAS SUMP
Know Your Numbers

What do your radon readings mean?

Health Canada measures radon in becquerels per cubic metre (Bq/m³). Here's what every level means and what to do next.

0–100 Bq/m³
Low Risk
Re-test in 5 years. Consider preventive sealing as a precaution.
100–200 Bq/m³
Moderate
Monitor continuously. Consider mitigation to reduce exposure.
200–600 Bq/m³
Action Level
Mitigation required within 1 year. Connect with a certified contractor.
600–800 Bq/m³
High Risk
Urgent mitigation required. Act within a few months.
800+ Bq/m³
Extreme Risk
Immediate action required. Contact a CARST-certified contractor today.
Simple 3-Step Process

From uncertain to protected — in days, not months.

Our free Info Kit walks you through exactly what to do, step by step. No guesswork. No overwhelm.

01
Download your free Ontario Home Health Guide
Get our comprehensive guide written for Ontario homeowners. Including a Home Health Checklist, hidden home health risks like radon, why it matters, and the risks for your specific home.
Takes 30 seconds → delivered instantly
02
Test your home — free, low-cost, or done-for-you
Choose the testing option that fits your budget. From free DIY kits to continuous monitors up to $700 — the guide covers every option with clear instructions.
Testing options range from $0 to $700
03
Take action — DIY to done-for-you
If your levels need mitigation, we connect you to certified Ontario contractors. Simple, affordable systems that solve the problem permanently.
Average mitigation: $5,500–$7,500
Free Download
The Ontario Homeowner's Complete Home Health Guide
Your home health checklist, hidden risks like radon, what the numbers mean, and exactly what to do next.
What's inside:
  • Home Health Checklist — a DIY room-by-room guide to your home's hidden risks
  • What radon is & why Ontario homes are at risk
  • Health risks — compared to smoking
  • Testing options: $0 free DIY to $700 continuous monitors
  • Reading your results + full action plan
  • Ontario Radon Hot Zone map by region
  • Connect with CARST-certified contractors
Free for Ontario Homeowners
Get your free Ontario Home Health Guide
Join thousands of Ontario homeowners taking the first step to a healthier home. Delivered instantly — no spam, ever.
🔒 100% free. No spam. Unsubscribe anytime. We never share your info.
Ontario Homeowners Trust WellNestHQ

Real families. Real results.

★★★★★
"I downloaded the guide on a Tuesday, ordered a test kit that week, and had results in 90 days. Our basement was at 340 Bq/m³ — way above the action level. WellNestHQ connected us with a contractor and it's now fixed. Every homeowner needs this."
SM
Sarah M.
Homeowner, Barrie, ON
★★★★★
"I'm a first-time homeowner and had no idea radon was a thing. The WellNestHQ guide explained everything in plain language. No scare tactics — just facts and a clear action plan. Tested at 85 Bq/m³, so we're in great shape."
JT
James T.
Homeowner, Kitchener, ON
★★★★★
"My husband was skeptical at first. But our levels came back at 560 Bq/m³ and we're very glad we tested. The contractor referral was seamless and the mitigation system was installed in one day. Highly recommend WellNestHQ."
LK
Linda K.
Homeowner, Ottawa, ON
★★★★★
"We had no idea there were things a home inspector, doctor, or real estate agent should tell you — but don't. We followed WellNest's guidance and discovered levels 10x over the government action level. We're now on a path to a truly healthy home."
SG
Sullivan G.
Homeowner, Port Colborne, ON
October is Radon Awareness Month in Canada.
Don't wait for a health scare to take action. Testing starts at $0 — and knowing your home's radon level is one of the most important things you can do for your family this year.
Get the Free Guide →