Oxford County
Radon testing and mitigation in Ingersoll, Ontario
Ingersoll is a Thames River town with deep roots (and a famous cheese history) and a growing population of commuters to London and Woodstock. Here’s what’s known about radon in Ingersoll, and how to find out about your home.
- Region
- Oxford County
- Population
- about 14,000
- Public health
- Southwestern Public Health
- Local factors
- 4 reasons to test
Is radon a problem in Ingersoll?
Radon can exceed Health Canada’s 200 Bq/m³ guideline in any Ingersoll 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, Shield-derived glacial soils and century-home foundations are reasons to test. A 91-day test is the only way to know your home’s level.
Radon in Ingersoll
Ingersoll is a Thames River town with deep roots (and a famous cheese history) and a growing population of commuters to London and Woodstock. Its housing mixes Victorian homes near the river with newer subdivisions on the higher ground.
The ground under Ingersoll
The town lies in the Thames valley, flanked by the Ingersoll Moraine. River terraces of sand and gravel sit close to the surface near downtown, and till covers the uplands. Valley sides and terraces give soil gas plenty of pathways toward foundations built into them.
Ingersoll’s homes
Older homes along the valley often have stone or rubble foundations. Homes built into slopes may have one basement wall almost fully exposed to soil. Newer subdivisions bring finished, lived-in basements. Every one of these is a reason to test.
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)
Free loan period for digital radon monitors through Oxford County Library. Useful for a first look, not a substitute for a 91-day test.Source: Oxford Today — Oxford County Library offers radon monitors for loan
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
Local results
Building a real radon picture for Ingersoll
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.
Ingersoll: collecting results. Already tested? Check your number and share it anonymously when you book.
Local factors
What can push radon up in Ingersoll
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.
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.
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.
Where we work
Ingersoll neighbourhoods and nearby communities
- Ingersoll
- Thamesford
- Beachville
- Salford
- Mount Elgin
- Putnam
Nearby: Radon in Woodstock · Radon in Dorchester · Radon in Tillsonburg · Radon in St. Marys
How it works
From test to fix
- Book
Tell us about your Ingersoll 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 Ingersoll: FAQ
Is radon a problem in Ingersoll?
Radon can exceed Health Canada’s 200 Bq/m³ guideline in any Ingersoll 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, Shield-derived glacial soils and century-home foundations are reasons to test. A 91-day test is the only way to know your home’s level.
Is radon higher in homes built into a hill?
Not necessarily higher, but there’s more foundation in contact with soil, and the upslope wall often has more cracks and joints. We test the lowest lived-in level and, if needed, design suction points to cover the whole slab.
Can a radon fan be heard inside the house?
A properly installed fan is mounted outside the living space (in the garage, attic or on an exterior wall) and is usually no louder than a bathroom fan when you’re close to it. Most homeowners stop noticing it within days.
Do you offer radon testing and mitigation in Ingersoll?
Yes. We test and mitigate homes throughout Ingersoll, including Ingersoll, Thamesford, Beachville, Salford, Mount Elgin and nearby. Call (226) 271-4667 or book online.
Radon is fixable. First, know your number.
Serving Ingersoll, Woodstock, Dorchester, Tillsonburg and St. Marys.