BGIS
About
BGIS is a C-NRPP certified radon testing and mitigation professional serving Markham, ON and across ON. They offer complete radon solutions from initial testing through to mitigation system installation.
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Is your home at risk?
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Zhanna Campbell
C-NRPP ID: CRT-201924TestingExpires Jul 2027C-NRPP ID: CRNCH-202104TestingExpires Jul 2027C-NRPP ID: CRMT-202491MitigationExpires Jul 2027Bruce Decker
C-NRPP ID: CRT-201017Testing
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Profile score breakdown
- ✓Phone number15/15
- ✓Website15/15
- ✓Business description15/15
- ✓Address10/10
- ✓Service area listed10/10
- ✗Claim verified0/10
- ✓Google rating15/15
- ✗Photos0/10
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Claim & verify your listing →Listed Mar 2026
Free · 60 seconds
Is your home at risk?
Answer 5 quick questions to get a personalized radon risk estimate based on your home and location.
Take the assessment →Learn More
Useful resources related to radon testing and mitigation.
Test before you call a pro
Know your radon level in Markham first
A home monitor tells you whether you need mitigation at all, and later confirms it worked. Health Canada bases decisions on a 3-month average, ideally through winter.
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