Main builders clean (residue removal)
This is the deep stage. We work top down to remove plaster dust, cement haze, paint specks, silicone smears, and adhesive from glass, tiling, fittings, and hard floors. Fine builders' dust keeps drifting back down for hours, so we let the air settle and go over surfaces more than once rather than wiping a sill that grit just resettles on. A standard domestic clean tends to recirculate this fine dust with an ordinary vacuum and a dry cloth, which is why we use a specialist approach, including HEPA filtration that traps the fine particles instead of pushing them back into the air.