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Radon Mitigation and Testing in Leduc
Leduc is a young city: about half its homes were built in 2006 or later (Statistics Canada, 2021 census), and in the 2024 Cross-Canada Survey of Radon, newer Alberta homes tested higher for radon on average than older ones. We test for radon and bring it down in Leduc, in Devon and Calmar, and on acreages all over Leduc County. Questions about a test or a result? Call us.
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On this page: Our Results · Radon Levels · Testing · Building Code · FAQ · Free Quote
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Our Radon Mitigation Work Around Leduc
Just a Few of Our Results From the Area
Inside Leduc we've worked from a 1970s bungalow in Linsford Park to newer houses in Suntree and Tribute and the newest townhouses. The three homes below each had a lab test after the system went in: an acreage in Leduc County and two homes in southwest Edmonton, a short drive up the QEII.
Each system is designed for the house it goes in. Canada's national standard for radon mitigation (CAN/CGSB-149.12-2024, section 1) says a system that is properly designed and installed by certified professionals can lower radon by about 90% or more. How well a system works comes down to who designs and installs it. We've lowered the radon in every home and commercial building we've ever worked on. Every system we install comes with guaranteed results.
Tricky homes are the ones our technicians enjoy most. Even after more than 3,000 homes, we still run into something new now and then, and when we do, the whole team works on it together, so every job has the experience of all our crews across Alberta and BC behind it.
The Three Homes Below
Before Mitigation
225 to 600Bq/m³
After
13 to 24Bq/m³
587→24Bq/m³
Acreage home, Leduc County
1950s · newer addition joined on · sump pit, cracked basement floor
An older acreage house with an addition built onto it. We sealed the sump and the cracks right across the basement floor, then pulled the radon out from beneath the slab. The owner's readings averaged 587 Bq/m³ across ten basement spots before, and the owner's monitor averaged 24 Bq/m³ over the first month after. A winter lab test on the main floor later read 30 Bq/m³.
600→22Bq/m³
Newer home, Glenridding area, southwest Edmonton
Detached house · builder's rough-in out of reach · sealed sump
The builder's rough-in pipe was tucked away where it couldn't be used, so we ran the system from the sealed sump with one of the smaller fans. Its lab test afterward: 22 Bq/m³.
225→13Bq/m³
Townhouse, Chappelle area, southwest Edmonton
2010s · townhouse · sump pit, basement being finished
The owner had been running the furnace fan day and night to keep the level down. Now the radon system does that job, and a six-month lab test after read 13 Bq/m³.
Readings in Bq/m³: the owners' own tests and monitors before; lab tests after, except the acreage, where the owner's monitor is shown and a lab test followed. Home details are approximate to protect each owner's privacy. Photos are from our installs in the area and may not show the home on the card.
Have a result over 200 Bq/m³, or not sure what yours means? Call us and we'll talk it through.
Radon Levels in Leduc
The Closest Numbers We Have
We haven't found a radon figure for Leduc on its own. The nearest comes from Edmonton and the communities around it, Leduc among them, where just over one home in six reached Health Canada's guideline of 200 Bq/m³ or went past it.
Census division 11 stretches from Edmonton out to Leduc, Beaumont and Devon. In the 2024 Cross-Canada Survey of Radon from Evict Radon at the University of Calgary, its 4,397 homes averaged 108.3 Bq/m³, and the highest read 1,493 Bq/m³. Fewer than half came in under 100.
Treat that as a starting point for Leduc, not an answer. Leduc's homes are much newer than the region's as a whole: about half date from 2006 or later, where the census division as a whole is closer to 3 in 10 (Statistics Canada), and newer Alberta homes tested higher in the same survey. The number that counts is the one from a long-term test in your own home. See how other parts of Alberta compare.
Two Numbers to Know
Edmonton and Area, Cross-Canada Survey
1 in 6
Leduc Homes Built 2006 or Later
1 in 2
Census division 11 (Edmonton and the communities around it, Leduc, Beaumont and Devon included): 4,397 homes; 17.3% at or above 200 Bq/m³, 39.5% from 100 to 199 and 43.2% under 100; average (geometric mean) 108.3 Bq/m³; highest 1,493 Bq/m³ (2024 Cross-Canada Survey of Radon, p.70). Homes built in 2006 or later: 48.8% in the City of Leduc (Statistics Canada, 2021 census), 30.6% in Division No. 11 (Statistics Canada).
What Your Radon Level Means
From Fresh Air to Canada's Guideline
Radon is measured in becquerels per cubic metre (Bq/m³). Here is where a long-term result sits next to the levels that matter in Canada, drawn to scale up to 300.
radoncare.ca
5 to 30
85
100
108.3
148 US
200
300
About 5 to 30Bq/m³
Fresh outdoor air. Radon from the ground gets diluted in open air, and the level changes from day to day and from region to region.
85Bq/m³
The average Canadian home.
100Bq/m³
The reference level the World Health Organization suggests for countries.
108.3Bq/m³
The average home tested in Leduc's census division (Edmonton and surrounding communities, 2024 survey).
148Bq/m³
The level where the US Environmental Protection Agency says to fix a home. A US number, shown for reference: Canada uses Health Canada's guideline.
200Bq/m³ (5.4 pCi/L)
Health Canada's guideline. Above it, Health Canada recommends lowering your level within a year, and sooner the higher it is.
300Bq/m³
The upper limit the World Health Organization and European rules set for a country's reference level.
200 is not the goal. Health Canada says no level of radon is risk free, and 200 is not a recommended stopping point if your home can reasonably go lower.
Above 300: How High Radon Can Go
Not Drawn to Scale
800Bq/m³
Canada's guideline from 1988 to 2007, before it was lowered to 200.
1,493Bq/m³
The highest home tested in the Edmonton-area census division in the 2024 survey.
32,321Bq/m³
The highest Canadian home tested in the 2024 survey.
All levels are long-term averages, which is how Health Canada compares a home with its guideline. Sources: Health Canada (200) and its 2012 survey report (800 until 2007), the BC Centre for Disease Control (fresh air, which it puts at about 5 to 15; outdoor levels change from day to day and region to region, so we show a wider band), the World Health Organization and the US EPA (148, for reference), EU Directive 2013/59/Euratom (100 and 300, for reference), and the 2024 Cross-Canada Survey of Radon (85, 108.3, 1,493 and 32,321).
Radon Testing in Leduc
The Best Way to Test
Order our long-term test kit and you get a lab number you can act on. It is the kind of test Health Canada recommends: set it in the lowest level your family uses for three months or more, ideally from fall into winter, then mail it in the prepaid envelope. If the result comes back high, call us and we'll go over what it means for your house.
Long-Term Radon Test Kit
Lab analysis and a prepaid return envelope included. Free shipping in Alberta and BC.
$54.99
Order a Test KitPrefer to watch your levels on a screen? We also sell digital monitors, like the Airthings Corentium Home. It passed C-NRPP's testing of home radon monitors.
Free Ways to Test in Leduc
Ask at the library. Some Alberta libraries lend radon detectors, but we haven't been able to confirm one at Leduc Public Library. Ask at the desk, or search its catalogue for "radon". Know of a free test in Leduc we've missed? Let us know. More on free ways to test across Alberta.
Know a library or community centre that could use a radon detector? RadonCare may be able to donate one for your community to borrow. Contact us to ask.
A free test from a public program is a good first look. Be careful with a free test from a company that also sells radon systems: a test of only a few days, or a detector in the wrong spot, can show a problem a proper test would not. More on what a short test can and cannot tell you.
When to Test in Leduc
Put a test out in the fall and collect it in the spring. Health Canada wants a long-term test to cover the months when windows stay shut, and a Leduc winter is exactly that.
Bought a brand-new house? Don't wait for it to settle. A new house isn't a low-radon house, and a capped rough-in pipe lowers nothing on its own. Test the first winter you live there.
Child care. Alberta has no radon testing rule for child care: a 2017 law that would have required it was repealed at the end of 2023 without coming into force (Alberta King's Printer). More on child care and schools.
Why Leduc Homes Have Radon
Radon is a gas that comes from uranium breaking down in the soil and rock under a house. It gets in through cracks and gaps in the basement floor and walls, and it can build up indoors (Health Canada).
The City of Leduc's own area plans describe the ground here: glacial till, a mix of clay, silt, sand and gravel several metres thick, over sandstone and shale bedrock with seams of coal, the Horseshoe Canyon Formation (the East Telford Lake and West area structure plans). No study we know of ties those layers to the radon in any one Leduc house.
When the city was built matters too. The 2024 survey found Alberta radon levels rising with the year a house was built, and homes going up now with “record-high radon levels”, averaging 131.6 Bq/m³ within a few years of completion (pp.51 and 52). About half of Leduc's homes date from 2006 or later, and about 1 in 8 from 2016 to 2021 (Statistics Canada, 2021 census).
Health Canada says radon is the number one cause of lung cancer in people who don't smoke. Radon has no symptoms, so a test is the only way to know. For questions about radon and your health, talk to your doctor or call Health Link at 811. More on radon and your health.
“These trends are consistent between single-detached houses, semi-detached, and row-style dwellings, as well as across urban to rural communities.”
2024 Cross-Canada Survey of Radon, on newer Alberta homes testing higher, p.52
Leduc Homes and What They Mean for Radon
A Young City
Leduc grew fast: 13.7% more people between the 2016 and 2021 censuses. About half of its homes were built in 2006 or later, against about 3 in 10 across the Edmonton region (Statistics Canada, 2021 census; Division No. 11). In the 2024 survey, Alberta homes tested higher on average the later they were built.
Still Growing
The City counted 36,060 people in 15,349 homes in its 2023 municipal census, and its area structure plans lay out more neighbourhoods still to come. The Alberta code asks every new house there for a capped rough-in pipe, not a fan, so the next wave of Leduc owners will be asking the same question as the last one: what does my house read?
Townhouses and Duplexes
About 6 in 10 Leduc homes are single detached houses, and about 1 in 6 are semi-detached or row houses (Statistics Canada, 2021 census). The survey saw newer homes testing higher in row houses and duplexes too, so an attached home needs its own test, like the Chappelle townhouse above. In a condo, see radon in condos, townhomes and rentals.
Older Leduc, Devon and the Acreages
About 1 in 4 Leduc homes went up before 1981, most of them in the 1960s and 70s. Out in Leduc County it's more than 4 in 10, and 9 in 10 County homes are single detached houses (Statistics Canada, 2021 census). Devon is older again: close to half its homes predate 1981 (Statistics Canada). The older homes are where we meet cracked floors, additions joined onto an older basement (like the acreage at the top of our results) and, in the 1970s bungalows we've worked on, no sump pit at all.
City Water, and Acreage Wells
Homes in the City of Leduc get their water piped from EPCOR's river plants in Edmonton, through the Capital Region Southwest Water Services Commission, so radon from a well is not a question in town. On a County acreage with its own well, it can be. In a 2024 national study led by the University of Calgary, rural homes ran higher on average than city homes, and drilled wells nearby were part of the reason.
Where the Radon Fan Is Installed
Canada's radon mitigation standard only allows a radon fan outdoors where winters are mild, and Leduc is too cold for that (CAN/CGSB-149.12-2024, section 5.8.1.1; National Building Code of Canada 2020, Appendix C, Table C-2). Your fan is installed in a heated space, usually the basement, a utility room or a heated garage, where it lasts longer and stays quiet.
What We Find Under Leduc Floors
The floors we've opened around Leduc sat on sand or gravel, once on very wet sand. The newer homes we've fixed here all had a sump pit, which we seal airtight and usually draw the system from. The 1970s bungalows had none, so the system draws through a suction point cut into the slab. Some of the acreage and newer homes had in-floor heat, so we thermal-scan the slab before we drill. The fans are installed in a mechanical room or a closet, and vent out through a side wall or under a deck. Why it matters: how a radon system works.
Radon and the Building Code in Leduc
What New Homes Need, and Since When
If the builder of your Leduc home applied to build after November 1, 2015, it should have a radon rough-in: a capped pipe through the basement floor, with no fan. Many fairly new Leduc homes were built just before that date, so they may have no pipe at all.
Radon Rough-In Required
New Homes in Alberta, Since
2015
Fan Required by Code
Still No
Code Dates for Leduc
- Before 1981: About 1 in 4 of Leduc's homes, built decades before Alberta's code asked for a radon pipe (Statistics Canada, 2021 census).
- 2006 to 2015: Leduc's biggest building years: more than a third of today's homes went up in this decade, most before the rough-in was required (Statistics Canada, 2021 census).
- May 1, 2015: Alberta's first radon rough-in, a capped pipe through the basement floor, comes into the code. Builders could use either code until November 1, 2015; homes the builder applied to build after that date must have it (Government of Alberta).
- 2016 to 2021: Roughly 1 in 8 of Leduc's homes date from these years, late enough that most should have the rough-in (Statistics Canada, 2021 census).
- December 1, 2019: For homes the builder applied to build from that date, the pipe also has to be labelled (Government of Alberta).
- May 1, 2024: The current code, for homes the builder applied to build from that date. Still no fan required (Government of Alberta).
What It Means for Your Home
A rough-in is a head start, not a radon system: there is no fan, so a newer home still needs a test, and we test the pipe before using it. More on radon in the Alberta Building Code.
Two Inspectors, One Code
Within city limits, Leduc's own Safety Codes Officers inspect new homes; on acreages, in Nisku and in the hamlets, Leduc County's do. Both work to the same Alberta code, so a Southfork house and an acreage near Calmar go by the same dates.
The City's New Homeowner Brochure puts it plainly: “Portions of this property's construction have been monitored for compliance with applicable codes, standards and bylaws.” For radon, that code asks only for the capped pipe.
Radon in Alberta: The Bigger Picture
What your number means, how a system works, the price, grants and the rules for buying or selling a home are the same across Alberta, so they're on one page: What your level means · Radon and your health · How mitigation works · What changes the price · Grants and help paying · Alberta code history · Buying or selling · More radon questions
Leduc Radon Questions
Is Radon a Problem in Leduc?
Yes. In the 2024 Cross-Canada Survey of Radon, which counts Leduc with Edmonton and the area around it, about 1 in 6 homes tested at or above Health Canada's guideline of 200 Bq/m³. The three area homes shown above read 225 to 600 Bq/m³ prior to mitigation, which brought them down to 30 Bq/m³ or lower. A long-term test of your own home is how you find out where yours sits.
Is There a Radon Map for Leduc?
Not that we've found. No public study we know of reports radon street by street or neighbourhood by neighbourhood in Leduc, and the nearest figures are the census division numbers in Radon Levels in Leduc. A map couldn't settle it for your house anyway: two homes side by side in Southfork or Suntree can test far apart, depending on the soil under each slab and how each house is built and run. A test in your own basement is the map that matters.
My Leduc Home Was Built in 2010. Does It Have a Radon Pipe?
Probably not. A 2010 home went up before Alberta's code asked for the rough-in (homes the builder applied to build after November 1, 2015). Look in the basement for a capped pipe through the floor; newer ones are labelled. With a pipe or without one, test first; if it's high, we can draw from a sealed sump pit or a new suction point through the slab instead.
My Newer Leduc Home Has a Radon Pipe. Do I Still Need to Test?
Yes. The pipe is capped and has no fan, so on its own it does nothing. A 2021 home we fixed in south Edmonton was built with the rough-in and still read in the 300s Bq/m³ on the owner's repeated short tests, and over 700 Bq/m³ with the air exchanger off. Run a long-term test first. If it comes back high, we measure the suction under the floor through that pipe before we decide to use it.
Do You Work Outside Leduc, in Nisku, Devon and the County?
Yes. We work in every part of Leduc, from Linsford Park, South Park and Willow Park to Southfork, Windrose, Robinson and the Telford neighbourhoods, and around it in Nisku, Beaumont, Devon, Calmar and New Sarepta and on acreages across Leduc County. Edmonton, Sherwood Park and Spruce Grove each have their own page.
How Much Does Radon Mitigation Cost in Leduc?
A radon system costs a fraction of the price of air conditioning. The price depends on your home. Most of the newer Leduc homes we've worked on had a sump pit we seal and draw from; an older bungalow without one needs a suction point cut through the slab. With a few details we can usually quote it on the same call. See what changes the price.
Do Businesses in Nisku Need to Test for Radon?
Alberta's workplace safety rules ask every employer to assess the work site for hazards, and the province's April 2026 bulletin on radon at work says those requirements apply “where radon has been identified as a workplace hazard” (Government of Alberta). It points to long-term winter tests of 90 days or more, and to action over 200 Bq/m³ wherever people spend four hours a day or more. Run a business or own a building in Nisku Business Park? Our crews work on commercial buildings as well as homes. More on radon at work in Alberta.
Is There a Grant for Radon Mitigation in Leduc?
At the time of writing (October 2026), there is no Alberta, regional or city grant for radon mitigation. Anything we missed? Let us know. Two charities can help: the Canadian Lung Association's Lungs Matter program, if you have been diagnosed with lung cancer, or your household has a low to moderate income, and Alberta Lung, in radon season, if you have been affected by lung cancer. See grants and help paying.
Why Doesn't RadonCare Offer Free Radon Tests?
Because we want the test done right. A proper test runs for at least three months in the lowest lived-in level of your home, and we only recommend a system when a test shows your home needs one. If you can borrow a detector for a free first look, follow it up with a long-term test.
Areas We Serve Around Leduc
We work in every Leduc neighbourhood: Alexandra Park, Blackstone, Bridgeport, Caledonia, Corinthia Park, Deer Valley, Eaton and Emery, Lakeside Estates, Leduc Estates, Linsford Park, Meadowview Park, North and South Telford, Robinson, South Park, Southfork, Suntree, Tribute, West Haven, Willow Park, Windrose and Woodbend, downtown too. Around the city we work in Nisku, Beaumont, Devon, Calmar and New Sarepta and on acreages throughout Leduc County. Out toward Thorsby or Warburg? Call us.
Nearby Areas We Serve
Outside This Map? We Work Across Alberta and the BC Interior.
Our crews also work in Red Deer and Calgary, and across the BC Interior. Not sure about your town? Call 1‑844‑723‑6622.
Radon in the Local News
Pipestone Flyer, November 7, 2024Radon: An unseen home riskThe Leduc-Wetaskiwin paper asks Health Canada why radon matters and how long a test should run.
Global News, October 23, 2024New study shows dangerous levels of radon gas in millions of Canadian homesCoverage of the 2024 survey whose Edmonton-region numbers are on this page.
Get a Free Quote or Ask a Question
Fill out the form and a radon expert will get in touch to answer your questions. Prefer to talk? Call 1‑844‑723‑6622.
About RadonCare
We've lowered the radon in every building we've ever worked on: more than 3,000 homes across Alberta and British Columbia, plus schools, apartment buildings and government buildings. We started out in heating and ventilation, so our team of C-NRPP certified professionals designs every system from how air actually moves through your house, and we aim for the lowest level your home can reasonably reach, not just under the guideline. From your first test to a system built for your home, the results are guaranteed. RadonCare is a five-time Consumer Choice Award winner, and we're involved in Canada's radon industry, with seats on the CARST board of directors and the C-NRPP advisory board.
Updated October 2026