Canadian Radon Specialists · Since 1981
LEXCHECK by LEX Scientific is a single Canadian partner for radon measurement, accredited laboratory analysis, mitigation design, and post-mitigation verification — at any scale, in any sector.
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C-NRPP CertifiedAccess the portal
View your test results, manage projects, and generate reports — choose the portal that’s right for you.
Understand your radon test results and breathe easier. A dedicated homeowner portal is on the way — check back soon.
Manage your radon testing projects, view results, order kits, and generate reports — built for the trade.
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What is radon?
Radon is a naturally occurring radioactive gas that seeps from the ground into buildings. You can’t see, smell, or taste it — and at elevated levels it’s the second-leading cause of lung cancer in Canada, linked to an estimated 3,200+ deaths every year.
Health Canada’s action guideline is 200 Bq/m³. The only way to know your level is to test — and the right way to fix it is an engineered, verified mitigation system. That’s what we do.
Services for large organizations
Four integrated services delivered under one Canadian roof — from a single building to nationwide portfolios. C-NRPP certified. Defensible. Done right.
01 · Measurement
Coordinated long-term test deployments across portfolios with chain-of-custody and consolidated, defensible reporting at any scale.
02 · Mitigation
Engineered active soil depressurization and tailored systems for complex, large-footprint buildings and challenging foundations.
03 · New Construction
Embedded with architects and engineering teams from concept through commissioning. Code-compliant designs that prevent radon before slab-pour.
04 · Reporting
Documentation aligned to Health Canada guidance and provincial occupational health frameworks — defensible for boards, regulators, and ESG disclosures.
Four services. One Canadian partner.
Sectors we serve
From elementary schools to industrial plants — LEX Scientific delivers radon measurement and mitigation programs engineered for the scale and complexity of large Canadian organizations.
01 · Education
Children spend up to 1,200 hours per year in their classrooms. We support school boards and universities with district-wide testing and mitigation that protects students and staff.
02 · Healthcare
Vulnerable populations spend extended hours indoors. We deliver discreet, low-disruption testing and mitigation in hospitals, clinics, and long-term care facilities.
03 · Public Sector
Trusted by Canadian governments. LEX was the consulting partner on the City of Guelph Radon Gas Mitigation Program — the first municipal program of its kind in Ontario.
04 · Commercial
Protect tenants and asset value. We coordinate portfolio-wide measurement with consolidated reporting that supports due diligence, leasing, and ESG disclosure.
05 · Residential
Condos, apartments, social housing, and student residences. We deliver building-wide programs with tenant-friendly logistics and reporting that satisfies boards and regulators.
06 · Industrial
Large-footprint operations with complex ventilation and shift work. We design measurement and mitigation strategies aligned to occupational health requirements.
Why organizations choose LEX
Measurement, accredited lab analysis, mitigation design and verification — coordinated under one Canadian roof. No subcontracted hand-offs.
Multi-site programs across schools, healthcare, government, commercial and multi-residential portfolios — designed for consistent data and defensible reporting.
C-NRPP certified professionals working to Health Canada, the National Building Code and provincial standards. Trusted by municipal radon programs.
Our engagement process
Portfolio review, site prioritization & testing plan
Long-term deployment with accredited lab analysis
Engineered mitigation & budgetary cost planning
Build, commission & verify reductions on site
Defensible documentation for stakeholders & regulators
C-NRPP certified · Canadian since 1981
Canadian-owned and operated since 1981, active in radon since 1991. LEX was the consulting and development partner on the City of Guelph Radon Gas Mitigation Program — the first municipal program of its kind in Ontario, recognized by the Canadian Cancer Society.
Project experience includes police headquarters, civic museums, institutional facilities, and large-scale residential mitigation across Ontario and British Columbia.
Log in to your radon portal to view test results, manage projects, and download reports you can trust.
Need a test kit first? Shop the LEX Scientific store.