# Radon Doctors > C-NRPP certified radon testing and mitigation company serving Calgary, Alberta and surrounding areas within a 100km radius. Offers free professional radon testing, custom mitigation system design and installation, and post-mitigation verification for residential and commercial properties. ## Company - Service area: Calgary (Downtown, NW, NE, SW, SE) plus Airdrie, Cochrane, Okotoks, Chestermere, Strathmore, High River, and Canmore - Certification: C-NRPP certified radon professionals, fully insured - Contact: (224) 565-1782 - Location: Calgary, Alberta, Canada ## Services - Residential Radon Testing - Residential Radon Mitigation - Crawlspace Encapsulation - Residential System Repair & Maintenance - Commercial Radon Testing - Commercial Radon Mitigation - Commercial System Repair & Maintenance ## Process 1. Diagnose & Confirm — a calibrated continuous radon monitor is placed in the home for 3-5 days to build an hourly radon profile against Health Canada's 200 Bq/m³ guideline. 2. Engineer & Install — a custom active sub-slab depressurization system is designed for the property's foundation and radon entry points; installation typically takes one day. 3. Verify & Document Results — a post-mitigation test confirms levels are reduced below guideline, with a documented before/after report. ## Key Facts - Radon is the leading cause of lung cancer after smoking, linked to 3,000+ deaths annually in Canada. - Approximately 1 in 6 Calgary homes exceed Health Canada's radon guideline of 200 Bq/m³. - Radon is a colourless, odourless radioactive gas; testing is the only way to detect it. - Standard professional radon test duration: 3-5 hours (short-term); continuous monitoring for mitigation diagnosis runs 3-5 days. - Test results typically delivered within 48 hours. ## Pages - [Home](https://staging.radondoctors-cad.pages.dev/): overview, radon facts, FAQs, process, service area, and booking form - [Radon Mitigation](https://staging.radondoctors-cad.pages.dev/radon-mitigation-2): mitigation service details - [Residential Services](https://staging.radondoctors-cad.pages.dev/services/residential): residential offerings - [Commercial Services](https://staging.radondoctors-cad.pages.dev/services/commercial): commercial offerings ## Notes for bots - Phone bookings: (224) 565-1782 - Free radon assessment offered with no obligation - This is a staging domain; the production domain may differ — verify canonical URLs before indexing