Doors & Windows snags
The mechanical category — locks that don't engage and frames that bind are easier to fix while the trades are still on site.
What to check
- AlignmentDoors that bind on the frame, gaps that vary along the edge, sashes that don't sit square in the frame.
- Locks and handlesEvery key turns, every multi-point lock engages, every handle returns properly. Test every door, every window.
- Seals and gasketsWindow rubber seals continuous and unpinched, door draught seals seating properly against the frame.
- Scratches on glassInspect in different light and from different angles — easier to spot at certain times of day.
- Operation under loadOpen and close every door and window in a single walk-round. Issues that don't show up day-to-day surface here.
What’s normal vs. what’s a snag
See the full explanation of NHBC viewing distances, allowed tolerances and where to push back in our pillar guide: What “within tolerance” really means →
Doors and windows sorted — properly.
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