Pre-Plaster Inspection Checklist

Check all first fix electrical is complete, clipped and tested (insulation resistance test available)

Verify first fix plumbing is complete, pressure tested and all joints accessible for inspection

Confirm all door linings are plumb, level and at correct height with adequate fixings

Inspect window boards — fitted level, supported and with drip groove to external face

Check cavity barriers and fire stopping are complete at all required locations (NHBC Ch 7.2)

Verify noggins fitted for all wall-mounted items (radiators, boiler, vanity units, TV brackets)

Confirm all penetrations through party walls and fire compartment walls are correctly sealed

Check thermal board / PIR insulation is secure with no gaps, staggered joints and taped

Verify mesh tape applied on all dissimilar material junctions to prevent plaster cracking

Confirm MVHR / extract ventilation ductwork is correctly routed, supported and insulated

Check window reveals have insulation returns and cavity closers correctly positioned

Verify staircase is securely fixed with correct balustrade height (900mm stairs, 1100mm landing)

Confirm soil and vent pipe connections are secure with fire collars at floor penetrations

Check bath / shower framing is level, secure and has adequate waterproofing detail

Verify all pipe boxing is adequately fire-stopped where passing through fire compartments

Confirm electrical consumer unit position and height meets BS 7671 requirements

Check all loft insulation is correctly laid to specified depth with no gaps at eaves

Verify heating system pipework is correctly clipped, insulated and tested

Confirm Part L evidence photos taken — insulation, thermal bridging details, airtightness

Check all structural openings have correct padstones, lintels and adequate bearing