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Post-construction cleaning: the three-phase process that actually removes the dust
July 23, 20266 min read
Drywall dust is microscopic, electrostatic and lives in vents, ceiling grids and track channels. Cleaning it in a single pass is why so many new spaces look dusty again three days after handover.
Phase 1 — Rough clean
Performed while trades are still finishing: debris removal, sweeping, stickers and labels off fixtures, bulk dust knocked down from high surfaces so subsequent trades do not re-embed it.
Phase 2 — Final clean
The detailed pass, top to bottom.
- High dusting: ceiling grid, sprinkler heads, vents, light fixtures, ductwork faces.
- HEPA vacuum every horizontal surface, including inside cabinets, drawers and window tracks.
- Glass and frames, both sides, plus paint and adhesive removal.
- Restroom fixtures polished; protective films removed.
- Floors: scrub, extract or strip and seal depending on material.
Phase 3 — Touch-up
Scheduled 24 to 72 hours before occupancy or the client walkthrough. Settled dust is removed, fingerprints from punch-list trades are cleared, and the space is delivered in photo-ready condition.
Common failures to avoid
- Using shop vacuums without HEPA filtration — they redistribute fine dust.
- Cleaning floors before high dusting.
- Skipping vent and return-air faces, which keeps dust circulating for weeks.
- One-pass cleaning with no touch-up before handover.
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