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Programme template

Wraparound extension: typically 16–20 weeks.

Combined side-return and rear extension with open-plan kitchen/dining, structural steels and large glazing.

Durations are typical ranges for a well-run job with normal lead times — actual programmes vary with site conditions, weather and procurement.

Stage-by-stage

  1. Site set-up & demolition4–6 days
  2. ◆ BC: commencement noticeinspection / milestone
  3. Excavation & footings7–10 days
  4. ◆ BC: excavation inspectioninspection / milestone
  5. Foundations, drainage & slab7–10 days
  6. ◆ BC: DPC & drains inspectioninspection / milestone
  7. Masonry & structural steelsWraparounds carry heavy steelwork — fabrication lead 4–6 weeks12–16 days
  8. Roof structure & covering6–10 days
  9. Watertight: glazing & doorsLarge sliders/bifolds: 6–10 week lead times4–6 days
  10. First fix & underfloor heating7–10 days
  11. Plastering & screed dryingScreed cure 1mm/day — flooring can't start early10–15 days
  12. Second fix & kitchen install10–14 days
  13. Decoration & flooring6–9 days
  14. Snagging & clean3–5 days
  15. ◆ BC: completion inspectioninspection / milestone

Customise this programme:

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