Substrate preparation
Local repairs and smoothing compound typically add £8–£20/m² where the base is uneven or damaged.
Moisture control
A surface damp-proof membrane and associated preparation can add £12–£25/m².
Coved detailing
Site-formed coves, capping strips and internal or external corners commonly add £15–£30 per linear metre.
Room complexity
Small rooms, columns, sanitary fittings and intricate cutting can increase the installed rate by 15–30%.
Material specification
Enhanced slip resistance, acoustic backing or specialist hygiene performance can add £10–£40/m².
Phasing and access
Out-of-hours working, occupied premises and multiple return visits can increase the rate by 10–25%.