Specialised construction activities Standard Industrial Classification (SIC) codes of UK-based importers and exporters 43110 - Demolition (3924) 43120 - Site preparation (8382) 43130 - Test drilling and boring (820) 43210 - Electrical installation (75952) 43220 - Plumbing, heat and air-conditioning installation (67387) 43290 - Other construction installation (55596) 43310 - Plastering (13937) 43320 - Joinery installation (30300) 43330 - Floor and wall covering (16876) 43341 - Painting (26662) 43342 - Glazing (10434) 43390 - Other building completion and finishing (78650) 43910 - Roofing activities (26586) 43991 - Scaffold erection (9594) 43999 - Other specialised construction activities n.e.c. (91171)