RadonClean
About
Provides DIY and official radon measurement, testing, and mitigation system installation. Services offered for homeowners, real estate, and new built houses.
Key Signals
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 →C-NRPP Certified Professional
Byung Sung Lee
C-NRPP ID: CRT-201755TestingExpires Jul 2026C-NRPP ID: CRMT-201836MitigationExpires Jul 2026
Location
Profile score breakdown
- ✓Phone number15/15
- ✓Website15/15
- ✓Business description15/15
- ✓Address10/10
- ✗Service area listed0/10
- ✗Claim verified0/10
- ✗Google rating0/15
- ✗Photos0/10
Needs Work
Markham, ON L3R 2J5
Services
Credentials
Own this business?
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 →Request a Free Quote
Send your details to RadonClean and they'll follow up with you directly.
Learn More
Useful resources related to radon testing and mitigation.
Test before you hire
Confirm your radon levels with a home test kit before scheduling mitigation.
Test Your Home
Radon test kits from $30
Monitor Continuously
Digital radon detectors
DIY Supplies
Manometers, sealants & more
Affiliate disclosure: We may earn a small commission on purchases at no extra cost to you.
Compare and Plan Next Steps
Tools and resources to help you move forward with confidence.
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BGIS
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.