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CERTASS Certificate
A CERTASS Certificate serves the same purpose as a FENSA certificate — confirming that replacement windows or doors comply with Building Regulations. CERTASS is an alternative Competent Person Scheme to FENSA.
Building Regulations Part L, Part N, Part KValid: Permanent
What it covers
- Window/door specification
- Thermal performance compliance
- Safety glazing compliance
- Self-certification to Building Control
Who needs a CERTASS?
Homeowners
Property buyers/sellers
Conveyancing solicitors
Manage your CERTASS with CertBox
1
Upload the PDF
Upload your CERTASS to CertBox against the right property.
2
Track expiry dates
Your dashboard shows when certificates need renewing.
3
Share via link
Send a secure link to landlords, agents, or Building Control.
Frequently asked questions about CERTASS
Is CERTASS the same as FENSA?
Both are Competent Person Schemes that self-certify replacement windows to Building Regulations. The certificates have the same legal standing. The difference is which scheme the installer is registered with.
Related certificates
Plumbers
FENSA
Store and manage FENSA window certificates with CertBox. Track installations by property, share with solicitors during property sales.
ElectriciansEPC
Store and manage Energy Performance Certificates with CertBox. Upload your EPC, track expiry dates, share with tenants and letting agents.