Accreditations
Fully accredited, fully insured
Every certification that matters for remediation, insulation, heating and renewables work: independently verified.
Stroma Certified
Independent third-party certification of installer competence and on-site compliance with PAS 2030 retrofit standards.
TrustMark
The government endorsed quality scheme for tradespeople. Mandatory for any work carried out under government grant funding.
HIES
Home Insulation and Energy Systems Quality Assured Contractors Scheme. Consumer protection and installer quality for renewable and energy-efficiency installations.
OSCAR
Onsite Compliance Assurance Register: independent verification of installation quality and process discipline.
Gas Safe Registered
Legally required for any gas appliance work in the UK. All CRS heating engineers are registered and ID-carded.
Constructionline
Pre-qualified supplier accreditation used by major buyers across UK construction. Verified financial, H&S and competence records.
CHAS
Contractors Health and Safety Assessment Scheme: independently verified health and safety competence.
Awards
Recognised work
WinnerQuality Business Awards 2025
Best Insulation Contractor, Vale of Glamorgan
WinnerWales Cymru Energy Efficiency Awards 2018
Vulnerable Customer Support
CommendedWales Energy Efficiency Awards 2025
Insulation & Fabric Installer and Contractor
ShortlistedNational Energy Efficiency Awards 2025
Insulation & Fabric Installer and Contractor