bridge construction, new (‘footbridge, non-vehicular)
bridge work, existing (non-structural)
builders
carpentry and joinery
carpet fitters
cavity wall insulation
cctv installation
ceiling contractors
central heating
chair lift install and maintenance
chimney contractors
civil engineering
cladding contractors
cleaning contractors (industrial, commercial)
concrete contractors
conservatory erection
curtain fitting
curtain walling
damp proofing and control
decking installation and treatment
decorating contractors
demolition contractors (not in isolation)
diamond drilling (concrete, aggregate or composite materials)
domestic app. install and repair
double glazing installation
drainage contractors
drilling (directional, ground, microbore) surface only risk
dry stone walling
drylining
ductwork installation
electricians
exhibition stand erectors
fencing contractors
fire systems contractors
fit out contractors
floor/foundation contractors
flooring contractors
formwork contractors (not in isolation)
garage door installation
garage erectors
garage plant installation
gas fitters
glazing contractors
groundworkers
guttering installation and cleaning
gym equipment installation
harling
heating and ventilation engineers
highways (maintenance / resurfacing)
highways (new)
hydraulic engineering
insulation contractor
joinery and carpentry
kerbing
kitchen installation
landscape contractors
lift engineer
lighting engineers
lightning conductor installation
locksmith
loft conversion
loft installation
macadam laying
machinery installation not otherwise classified (robust)
machinery installation not otherwise classified (sensitive)
masons
mastic sealant contractor
office equipment installation
painters
partitioning
paving
pebble dashing
piling
pipework contractors
plastering
playground equipment installation and maintenance
plumbers
property maintenance
racking installation / maintenance
refrigeration engineer
rigging / netting contractors
roller shutter installation
roofing
roughcasting
safety netting installation
satellite dish installation
scaffolding (not in isolation)
shed erectors
shelving installation / maintenance
shuttering contractors (not in isolation)
sign erection
sign writing
site clearance
slot cutting
soft strip
solar panel installation
sound engineers
sports surfacing contractors
sprinkler install and maintenance
stair lift install and maintenance
steel erection / reinforcement
steeplejacks
street furniture installation
street lighting installation
telegraph pole installation
telephone system installation
terrazzo work
traffic management
tree surgeons
underpinning
upholsterers
utilities contractors
wall tiling
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