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Post-Construction HVAC Cleaning Before Turnover
Drywall dust is the worst thing you can put through a coil. Clean before turnover, not after the first complaint.
3 min read · Reviewed by Gabriel M.
High-rise residential tower — air duct cleaning
Why construction dust is different
Drywall dust is fine, abrasive and hygroscopic. Once it reaches a wet coil it forms a hard mat that ordinary maintenance will not shift. Sawdust and insulation fibers add bulk in the ducts, and adhesives and finishes leave residue on interior surfaces.
Systems used for temporary conditioning during construction are the worst cases — they have been running unfiltered through the dirtiest phase of the project.
Turnover scope
Full duct interior cleaning including new runs, coil and blower service, filter rack cleaning and new filters, air handler cabinet cleaning, diffuser and grille cleaning, and verification photos for the closeout package. On tenant-improvement work the same scope applies to the affected zones only.
Timing it correctly
The cleaning belongs after dusty trades finish and before final finishes and occupancy. Doing it too early means re-cleaning; doing it after move-in means working around people and furniture at a higher cost.
Common questions
- Is new ductwork really dirty?
- Frequently. Material is often stored on site uncovered, and open runs collect debris throughout the build.
- Does this belong in the GC scope?
- It should be a specified closeout item. When it is not, it becomes the owner's problem in month two.
- Can you work on an active site?
- Yes, coordinated with the GC's schedule and site safety requirements.
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