Brant & Brantford
Radon testing and mitigation in Brantford, Ontario
Brantford is a Grand River city with a deep stock of early 20th-century homes in its older wards and fast-growing neighbourhoods in West Brant and the north end. Here’s what’s known about radon in Brantford, and how to find out about your home.
- Region
- Brant & Brantford
- Population
- about 105,000
- Public health
- Grand Erie Public Health
- Local factors
- 4 reasons to test
Is radon a problem in Brantford?
Radon can exceed Health Canada’s 200 Bq/m³ guideline in any Brantford home. No published local data rules any neighbourhood in or out. Across Ontario, about 1 in 8 homes tested at or above the guideline in the 2024 national survey. Locally, sandy or gravelly soils, century-home foundations and new airtight construction are reasons to test. A 91-day test is the only way to know your home’s level.
Radon in Brantford
Brantford is a Grand River city with a deep stock of early 20th-century homes in its older wards and fast-growing neighbourhoods in West Brant and the north end. That range of foundations, from stone to modern poured concrete, means radon results can vary widely across the city.
The ground under Brantford
The Grand River has cut down through layers of glacial sand and gravel, leaving terraces and outwash deposits through much of the city. These coarse, well-drained soils let soil gas travel easily. On higher ground, till and moraine carry Shield-derived rock, a natural uranium source.
Brantford’s homes
In Eagle Place, Holmedale, Echo Place and Terrace Hill, many homes date from the early 1900s, with stone or early poured foundations, floor drains and sumps. West Brant and Shellard Lane are newer, larger and more airtight. Different construction, same first step.
What the data says
Ontario homes at or above Health Canada’s 200 Bq/m³ guideline in the 2024 Cross-Canada Survey, more than double the share found a decade earlier.Source: Cross-Canada Survey of Radon Exposure in the Residential Buildings of Urban and Rural Communities (2024)
Higher average radon exposure for rural residents than urban residents in a 2024 national study of 42,051 homes, mostly linked to drilled wells.Source: Goodarzi et al., Scientific Reports (2024) — rural communities and drilled-well annuli
Roughly how many homes per health region the first national survey (2009–2011) could test. Too few to clear any neighbourhood, which is why public maps can’t tell you about your house.Source: Health Canada — Cross-Canada Survey of Radon Concentrations in Homes, Final Report (2012)
Local results
Building a real radon picture for Brantford
Public radon data for Southern Ontario towns is thin. The national surveys tested only a handful of homes per area. So we’re building our own: anonymized long-term results from homes we test, published by area once there are at least 30, so no single home can be identified and small samples can’t mislead.
Brantford: collecting results. Already tested? Check your number and share it anonymously when you book.
Local factors
What can push radon up in Brantford
Not a prediction for any single home, just the reasons a test is worth it here.
Sandy or gravelly soils
Sand and gravel let soil gas move freely and over longer distances. More of the radon formed in the ground can reach the air around your foundation instead of decaying in place.
Century homes
Fieldstone, rubble and early concrete foundations, earth-floor cellars and open sumps give radon many ways in. Older doesn’t mean safer: these homes still need a test.
New, airtight construction
Canadian research shows newer homes have tended to test higher than older ones. Bigger, taller and tighter homes create a stronger stack effect that draws soil gas in through the slab.
Glacial soils with Shield debris
The till and gravel left by glaciers here includes ground-up rock carried south from the Canadian Shield. Uranium travels with it, so radon can form close to your footings even where the bedrock itself is low in uranium.
Where we work
Brantford neighbourhoods and nearby communities
- Eagle Place
- Holmedale
- Echo Place
- Terrace Hill
- West Brant
- Shellard Lane
- North Ward
Nearby: Radon in Paris · Radon in Caledonia · Radon in Hamilton · Radon in Simcoe · Radon in Cambridge
How it works
From test to fix
- Book
Tell us about your Brantford home. We reply within one business day.
- Test for 91+ days
A certified technician places long-term detectors on your lowest lived-in floor. You get an early reading at 2 weeks.
- Get your result
Lab-verified average, explained against Health Canada’s guideline.
- Fix it if it’s high
A sub-slab system designed for your foundation, at a fixed price, with results guaranteed.
Questions
Radon in Brantford: FAQ
Is radon a problem in Brantford?
Radon can exceed Health Canada’s 200 Bq/m³ guideline in any Brantford home. No published local data rules any neighbourhood in or out. Across Ontario, about 1 in 8 homes tested at or above the guideline in the 2024 national survey. Locally, sandy or gravelly soils, century-home foundations and new airtight construction are reasons to test. A 91-day test is the only way to know your home’s level.
Who tests for radon in Brantford?
We provide C-NRPP certified radon testing across Brantford and the County of Brant, from long-term 91-day tests to real estate screening, and we design and install mitigation systems when results are high.
My Brantford home has a stone foundation. Can it be mitigated?
Yes. Stone foundations have more openings, so sealing matters more and some homes need an extra suction point, but sub-slab depressurization works well in most of them.
Do you offer radon testing and mitigation in Brantford?
Yes. We test and mitigate homes throughout Brantford, including Eagle Place, Holmedale, Echo Place, Terrace Hill, West Brant and nearby. Call (226) 271-4667 or book online.
Radon is fixable. First, know your number.
Serving Brantford, Paris, Caledonia, Hamilton, Simcoe and Cambridge.