Is Radon Building Up in Your Basement? Test It. Fix It.
Radon is an invisible, odourless radioactive gas that comes up from the ground. The only way to know your level is to test.
- Long-term radon testing guidance
- Sub-slab depressurization (mitigation) systems
- Sealing cracks, sumps and floor openings
- Retest after mitigation to confirm results
Prefer email? service@ggcalgary.ca
Text or after hours: (403) 826-3148 · Book online
Why Homeowners Call Us
Calgary-area homes test high
A University of Calgary study of 2,382 southern Alberta homes found 12.4% at or above Health Canada's 200 Bq/m³ guideline, and every area had some homes above it.¹
Clear guideline to act on
Health Canada recommends corrective action within 1 year if your average level is above 200 Bq/m³ in a lived-in area such as a finished basement.²
Mitigation works
In the same study, 90 mitigated homes dropped from an average of 575 to 32.5 Bq/m³.¹
C-NRPP certified radon professional on staff
Radon work is led by a C-NRPP certified radon professional on our staff, and we can combine it with crack sealing, sump lids and waterproofing.
¹ Stanley et al., CMAJ Open 2017;5(1):E255 (cmajopen.ca/content/5/1/E255). ² Health Canada, Government of Canada Radon Guideline (canada.ca).
How It Works
Test
Long-term test (90+ days recommended by Health Canada) or review of your existing result.
Plan
We inspect the slab, sump and foundation, then give you a free written quote.
Mitigate & retest
Install the system, seal entry points, then retest to confirm the level is down.
How Radon Testing and Mitigation Work
Illustrative images, not photos of GG Calgary jobs.
Why Trust GG Calgary
C-NRPP certified radon professional on staff
Testing guidance, mitigation design and the post-mitigation retest are handled by a professional certified through the Canadian National Radon Proficiency Program (C-NRPP).
Real reviews
Licensed & insured
Warranty
Written warranty included with every job; details provided with your quote. See your written contract for full terms.
Clear communication
Written quote, photos of what we find, and no-pressure options.
FAQ
Who does the work?
Every radon job is handled by a C-NRPP certified radon professional on our staff, backed by the GG Calgary team.
What is a safe radon level?
Health Canada's guideline is 200 Bq/m³. It also notes no level is completely risk-free.²
How do I test?
Health Canada recommends a long-term test of at least 3 months, ideally in fall or winter, in the lowest lived-in level.
Are newer homes safe?
Not necessarily. In the Calgary-area study, homes built in 1992 or later averaged 31.5% higher radon than older homes.¹
Do you sell test kits?
Our radon testing and mitigation are handled by C-NRPP certified professionals. Free quote.
Talk to a Calgary basement specialist today.
Free, no-obligation inspection and written quote.