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Completion

Final inspections, snagging, and signing off

4 tasks in this phase

Process infographic showing the path from builder finishing to BCO sign-off, with a central timeline highlighting the certificate collection bottleneck between practical completion and the final inspection visit
1
Building Control Final Inspection
How to prepare for the BCO final inspection: the certificates you need, why sign-off can take months, and what to do when trades won't certify.
Infographic showing three categories of snagging defects: structural (red, must fix), functional (amber, must fix), cosmetic (green, negotiate), arranged as a severity scale with example items in each category
2
Loft Conversion Snagging Checklist: How to Inspect Your Builder's Work
A room-by-room snagging guide covering structural, functional and cosmetic defects, NHBC tolerances, crack assessment, and how to hold final payment.
Free with email
Process infographic showing the completion certificate journey: from final inspection request through trade certificates submitted, BCO visit, and certificate issued, with a parallel track showing the regularisation route for missing certificates
3
Your Completion Certificate: Why It Matters
The building control completion certificate proves the work complies with building regulations. Without it, selling or remortgaging gets complicated.
Two-step timeline showing insurance notification at start of build and update after completion, with checklist items and rebuild cost calculation icons
4
Updating Your Home Insurance After a Loft Conversion
A loft conversion changes your rebuild cost and risk profile, and not telling your insurer could void your policy. What to do, when, and what your insurer needs.