Specialised construction activities Standard Industrial Classification (SIC) codes of UK-based importers and exporters 43110 - Demolition (3648) 43120 - Site preparation (7801) 43130 - Test drilling and boring (767) 43210 - Electrical installation (69146) 43220 - Plumbing, heat and air-conditioning installation (61091) 43290 - Other construction installation (50085) 43310 - Plastering (12863) 43320 - Joinery installation (27405) 43330 - Floor and wall covering (15395) 43341 - Painting (24135) 43342 - Glazing (9701) 43390 - Other building completion and finishing (71128) 43910 - Roofing activities (23359) 43991 - Scaffold erection (8684) 43999 - Other specialised construction activities n.e.c. (83215)