Surface preparation
Upgrading from mechanical preparation to abrasive blast-cleaning typically adds £12–£30/m².
Steel complexity
Dense connections, small members and numerous edges can increase the coating rate by 15–35%.
Access provision
Mobile platforms, scaffold interfaces or difficult high-level access can add £10–£35/m².
Exposure class
Marine, industrial or chemically aggressive environments can add £8–£25/m² through heavier and more specialist systems.
Small quantities
Mobilisation, colour setup and minimum-order charges can add £8–£20/m² on fragmented packages.
Programme constraints
Out-of-hours working, multiple visits or accelerated curing requirements commonly increase costs by 10–20%.