Slab condition
Crack filling, resin repairs and local levelling can add £15–£45/m² where the substrate is damaged or inconsistent.
Aggregate exposure
Deep grinding to achieve full aggregate exposure typically increases the rate by 20–40% through extra passes, tooling and labour.
Gloss level
Progressing from a matt commercial finish to a high-gloss finish can add £10–£25/m² for finer polishing stages and additional burnishing.
Edges and details
Dense perimeter work, columns, thresholds and penetrations can increase the overall rate by 10–25% because smaller hand-operated equipment is required.
Area and access
Small phases, upper-floor locations or restricted working areas can add £15–£35/m² through reduced output, mobilisation and handling.
Programme constraints
Night working, phased handovers or compressed curing periods commonly add 15–30% to labour and supervision costs.