radon sumps and positive input ventilation units, and offers surveys, diagnostic testing and follow‑up measurement to confirm performance. PropertECO also assists employers with radon risk assessments and large portfolio testing to support regulatory compliance. In addition, it offers building sustainability services including basement waterproofing, timber preservation and a solid wall insulation method. Its products and services are used by homeowners, landlords, businesses and institutions seeking to manage radon and improve building conditions.