Post-Construction Duct Cleaning: A Builder's and Owner's Checklist
Drywall dust, sawdust, and insulation fibers in new and renovated ductwork are avoidable — if the cleaning is scheduled before move-in and scoped correctly.
By AirDuctSanitizingServices.com Editorial Team · 6 min read · June 5, 2026
New construction and major renovations introduce drywall dust, sawdust, fiberglass fibers, and paint overspray into the HVAC system even when registers are taped. The ducts are cut, connected, and often run while other trades are still sanding, and the system pushes that dust through the home the first time it runs. A post-construction duct cleaning removes it before move-in.
The checklist: seal and protect all registers before cleaning, negative-air the trunk, brush and air-whip every branch, HEPA-vacuum the air handler and (if accessible) the coil, wipe down the register boots, and replace the filter with a fresh one sized to the new system. Document the before and after with photos.
Upgrade the filter to a MERV rating appropriate for the finished home — a higher MERV catches the fines a construction-grade filter lets through. But confirm the new system's blower can handle the static pressure; a filter too high for the blower starves the coil of air.
If the renovation involved asbestos abatement, lead, or mold remediation, the duct cleaning is part of that scope and should follow the clearance protocol for the project — not a standalone residential service. Match the cleaning scope to the contaminant, and schedule it after the final clean but before the first full-system run.
