Surface condition
Filling, sanding and local sealing beyond light preparation can add £2.00–£6.00/m².
Colour changes
Strong colours, pale-over-dark finishes or low-opacity pigments can increase the rate by 10%–25% through additional coats.
Working height
Mobile towers, podiums or repeated access moves can add £4.00–£10.00/m².
Room geometry
Small rooms, narrow corridors and extensive cutting-in commonly increase unit rates by 15%–35%.
Paint specification
Scrubbable, antimicrobial or premium low-sheen products typically add £2.00–£6.00/m².
Protection and phasing
Enhanced masking, occupied-area controls and out-of-sequence working can add £2.00–£7.00/m².