Oscar Onsite

Oscar Onsite is the UK's leading authority in cavity wall insulation (CWI) extraction, providing comprehensive training, accreditation, NVQ qualifications, and on-site clearance assessments. Established in response to a growing crisis of failed CWI installations, the company developed the UK's only dedicated vocational qualifications in CWI surveying, inspection, extraction, and clearance. They work collaboratively across the supply chain to deliver services and support clients throughout the entire lifecycle of their works, aiming for consistent delivery and quality workmanship.

Oscar Onsite supports over 250 contractor businesses through training, accreditation, technical guidance, and competency development, while also assisting homeowners, tenants, housing providers, and local authorities nationwide. Their mission is to protect homes through knowledge, competence, and accountability, raising standards and improving consumer confidence in the CWI sector. They offer a range of specialist services including independent surveys, extraction and clearance programmes, technical monitoring, and competency assessments.