Primary Contractors (estimated individual works contract values of greater than GBP 35 000 but less

Wales

45112000 - Excavating and earthmoving work

45112210 - Topsoil-stripping work

45212000 - Construction work for buildings relating to leisure, sports, culture, lodging and restaurants

45262100 - Scaffolding work

45312000 - Alarm system and antenna installation work

45343000 - Fire-prevention installation works

45340000 - Fencing, railing and safety equipment installation work

45451200 - Panelling work

45215500 - Public conveniences

45262500 - Masonry and bricklaying work

45262660 - Asbestos-removal work

45111214 - Blast-clearing work

45331000 - Heating, ventilation and air-conditioning installation work

45223500 - Reinforced-concrete structures

45261300 - Flashing and guttering work

45112200 - Soil-stripping work

45453100 - Refurbishment work

45321000 - Thermal insulation work

45213100 - Construction work for commercial buildings

45210000 - Building construction work

45451000 - Decoration work

45100000 - Site preparation work

45262330 - Concrete repair work

45315000 - Electrical installation work of heating and other electrical building-equipment

45111220 - Scrub-removal work

45317000 - Other electrical installation work

45200000 - Works for complete or part construction and civil engineering work

45313000 - Lift and escalator installation work

45324000 - Plasterboard works

45330000 - Plumbing and sanitary works

45261000 - Erection and related works of roof frames and coverings

45261420 - Waterproofing work

45262370 - Concrete-coating work

45112360 - Land rehabilitation work

45262700 - Building alteration work

45223200 - Structural works

45211200 - Sheltered housing construction work

45262000 - Special trade construction works other than roof works

45112350 - Reclamation of waste land

45333000 - Gas-fitting installation work

45211100 - Construction work for houses

45262640 - Environmental improvement works

45451100 - Ornamentation fitting work

45112100 - Trench-digging work

45314000 - Installation of telecommunications equipment

45211310 - Bathrooms construction work

45215222 - Civic centre construction work

45111210 - Blasting and associated rock-removal work

45112700 - Landscaping work

45310000 - Electrical installation work

45110000 - Building demolition and wrecking work and earthmoving work

45262670 - Metalworking

45223220 - Structural shell work

45452100 - Blast cleaning work for building exteriors

45211340 - Multi-dwelling buildings construction work

45300000 - Building installation work

45262300 - Concrete work

45111240 - Ground-drainage work

45262600 - Miscellaneous special-trade construction work

45260000 - Roof works and other special trade construction works

45261900 - Roof repair and maintenance work

45262320 - Screed works

45113000 - Siteworks

45332000 - Plumbing and drain-laying work

45343200 - Firefighting equipment installation work

45262800 - Building extension work

45111300 - Dismantling works

45211350 - Multi-functional buildings construction work

45454000 - Restructuring work

45111230 - Ground-stabilisation work

45211341 - Flats construction work

45262690 - Refurbishment of run-down buildings

45111250 - Ground investigation work

45262400 - Structural steel erection work

45261410 - Roof insulation work

45332400 - Sanitary fixture installation work

45000000 - Construction work

45312310 - Lightning-protection works

45343100 - Fireproofing work

45112310 - Infill work

45341000 - Erection of railings

45223210 - Structural steelworks

45316100 - Installation of outdoor illumination equipment

45112340 - Soil-decontamination work

45112420 - Basement excavation work

45262900 - Balcony work

45214000 - Construction work for buildings relating to education and research

45261222 - Cement roof-coating work

45212290 - Repair and maintenance work in connection with sports facilities

45261200 - Roof-covering and roof-painting work

45320000 - Insulation work

45452000 - Exterior cleaning work for buildings

45342000 - Erection of fencing

45213112 - Shop units construction work

45311000 - Electrical wiring and fitting work

45120000 - Test drilling and boring work

45111000 - Demolition, site preparation and clearance work

45262340 - Grouting work

45262360 - Cementing work

45323000 - Sound insulation work

45262210 - Foundation work

45262650 - Cladding works

45211000 - Construction work for multi-dwelling buildings and individual houses

45214400 - Construction work for university buildings

45211320 - Porches construction work

45211300 - Houses construction work

45312320 - Television aerial installation work

masonry

grading

earthmoving

concrete framing

concrete work

general building

cementing work

land remediation

site excavation

landfill filling

earth stripping

earth retention

turnkey projects

foundation prep

domestic wiring

wrecking work

fence erection

building wiring

trench infilling

subsoil drainage

grouting work

mortar laying

stone masonry

public works

new buildings

tile replacement

retaining works

dewatering

demolition prep

porch building

FSBO structures

floor addition

rock removal

flashing repairs

roof coating

slurry injection

landscaping work

cellar digging

structural work

infrastructure

land restoration

ground surveys

shingle repair

pipe fittings

decoration work

site restoration

earth infill

MEP works

site preparation

earthworks

site stripping

foundation work

insulation work

renovation work

concrete overlay

mortar bedding

cladding works

soil relocation

slate roof works

spalling repair

piling system

demolition work

trench drainage

trenching

cable routing

antenna setup

CCTV setup

site grading

land contouring

site renewal

porch extension

land shaping

superstructure

site leveling

mining blasting

heavy earthwork

underground dig

roof sealing

pipe drainage

site remediation

scrub cutting

crack injection

flat unit build

geotech testing

blasting work

family homes

land clearing

debris clearance

screed works

subsoil testing

panel boarding

LPG system setup

leak sealing

skeleton works

excavation work

quarry blasting

core drilling

house building

balcony repair

housing projects

metal sheeting

private homes

valley flashing

terrain design

internal cabling

mass excavation

rock-breaking

retail pod build

land reclamation

roof works

low rise flats

metalworking

rock bolting

floor screeding

building sites

soil sampling

ground anchoring

soil excavation

plumbing work

cement injection

removal work

topsoil removal

void filling

custom homes

gym hall repair

brush clearing

concrete sealing

soil remediation

landscape prep

house extension

roof tiling

deconstruction

bulk earthwork

site blasting

site clearance

single dwellings

siteworks

panelling work

debris removal

lavatory work

conduit laying

railing assembly

shot removal

adaptive reuse

scaffolding work

excavation

adapted homes

infill work

roofing repair

custom carpentry

repair mortaring

chimney flashing

shrub removal

safety clearance

facade wash

girder erection

site drainage

rooftop upkeep

room extension

cable trenching

soil nailing

site infill

suburban housing

site landscaping

site clearing

building projects

wheelchair lift fitting

residential construction

inline store build

civic services venue

site construction

controlled explosion

post-blast clearance

cosmetic renovation

brick wall construction

gas appliance fitting

fire door installation

cement repair work

woodland clearance

decorative rail erection

architectural building

care home buildings

chain-link fencing works

void filling grouting

land rehabilitation work

concrete rehabilitation

infrastructure siteworks

explosive excavation

technical dismantling

steel framing build

railing installation

flats building works

moving walkway setup

router/switch mounting

structural upgrade

collective housing build

vegetation layer removal

mortar roof covering

clean soil restoration

roof structural work

floor laying works

structural brickwork

structural crack filling

terrace extension

outdoor cleaning works

family house projects

structural construction

fireproofing work

explosion clearing

self-leveling screed

preparatory stripping

pitched roof erection

safety guard rails

vegetation clearing

narrow trench excavation

bespoke joinery works

ground-drainage work

landscape grading

load-bearing masonry

power system wiring

basement site work

roof inspection service

refurbishment project

complex roofing projects

ground backfilling

geotechnical drilling

telecom systems fitting

shopfront buildings

building expansion

roof truss installation

decorative finishing

anti corrosion coating

washroom fitting works

RC building framework

toilet block facility

clearing soil layers

foundation pit work

agricultural stripping

WC pavilion construction

roof render application

injection remediation

painted roof finish

soil stripping work

building erection

eco roof insulation

lift cab installation

structural steelwork

blast-clearing work

perimeter security works

stairlift assembly

boundary fence assembly

layout change works

housing units build

decorative interior work

electrical installation

mobile scaffold fitting

construction siteworks

complex buildings

gypsum board assembly

ground assessment

drainage trench digging

emergency alarm system

exploratory drilling

single family homes

skylight installation

telecom hardware fitting

intumescent coating

flats construction work

fire hose cabinet mount

restroom facility build

masonry restoration

waste site conversion

blockwork building

civil concrete works

decorative painting

toilet/basin fitting

groundwork services

soil purification

structure clearing

industrial site setup

site preparation work

demolition by blasting

steel structure build

foundation analysis

cement application

geotechnical surveys

system dismantling

cement screed pour

concrete repair work

receiver mounting

land surface stripping

mall unit erection

heating system fit-out

rubbish land reclamation

lighting circuit works

fire alarm fitting

basement pit digging

topsoil stripping work

lift shaft installation

sanitary installation

fence installation

rainscreen systems

balustrade fitting

heat barrier fitting

internal restructuring

eaves flashing work

drainage system assembly

earth landscaping

security system works

building takedown

residential units

custom metal forming

balcony maintenance

structural skeleton work

structural modification

facility servicing

friable asbestos removal

field topsoil removal

refurbishment work

main concrete structure

civic hub erection

blast debris removal

interior remodeling

ground test drilling

civic centre building

RC skeleton erection

guardrail construction

stormwater management

blast cleaning exterior

exterior wall panels

pollutant removal work

foundation trenching

utility trenching

building conversion

preparatory works

campus institution build

systems installation

property enlargement

power cable installation

masonry and bricklaying

building dismantling

condominium unit build

substructure build

rooftop TV aerial

bathroom installation

wasteland restoration

building reconfiguration

annex construction

demolition services

cultural centre building

collegiate buildings

final construction stage

nutrient soil clearance

detached home building

roof insulation work

perimeter fence setup

architectural finishing

building extension

earthworks support

combined use development

base station setup

sandblasting buildings

metal fence erection

drywall installation

decorative trim fitting

domestic buildings

top layer removal

material handling

soundproofing fit-out

roof frame civils

kitchen gas line fitting

screed floor preparation

bathroom amenities build

trench excavation

family home construction

switchboard fitting

town hall facility build

steel beam erection

heating control circuits

tanking installation

noise-reduction paneling

condominium development

shallow foundation works

decorative stonework

preventative maintenance

hazardous soil cleanup

flat housing development

cementitious filling

municipal civic hall

trench installation

apartment building works

domestic dwellings

reclaimed land filling

topsoil preparation

wall panel installation

smoke curtain fitting

metal frame installation

building overhaul

general contracting

plasterboard works

fertile layer stripping

deblasting cleanup

preparatory demolition

roofing framework build

bathroom fixture fit-out

building installation

stair rail assembly

bitumen sealant work

anti-intrusion fencing

reinforced concrete pour

controlled disassembly

pipe system installation

housing estate build

steelwork construction

environmental drilling

retail facility build

footing excavation

domestic house projects

façade enhancements

vertical extension

sound insulation work

scrub-removal work

site water control

passenger lift fitting

structural refurbishment

outlet unit construction

apartment block build

subterranean grout work

building retrofit

exploratory boring

green landscaping

playing surface repair

concrete screed laying

sanitary plumbing works

roof installation

supported residences

street lamp setup

drainage channels

research centre erection

cast-in-place concrete

structural repair works

surge protection systems

mesh fence fitting

load-bearing shell build

brownfield development

decorative roofing tasks

ornamental finishing

wrecking services

balcony installation

field restoration works

heavy steel framework

protective cement finish

pressure grouting

site decommissioning

superstructure erection

strip footing setup

trench digging work

demolition clearance

UHF/VHF antenna fitting

individual housing

hose reel installation

retail cell development

arena maintenance

knowledge centre build

utility siteworks

site investigation

energy loss reduction

plant heating electrics

ventilation duct setup

underbrush removal

shop units construction

concrete patching

land management clearing

site safety enclosures

waterproof roof painting

overgrowth removal

hospitality venues

clustered housing

stabilising foundations

lightning arrestor setup

public assembly building

balcony railing mounting

circuit installation

flat block construction

ground water control

stadium upkeep services

internal power grid

component removal

aerial installation

covered porch build

wall lining fitting

concrete grout work

subsurface testing

sheltered housing

fixture integration

HVAC installation

interior wall surfacing

infrastructure projects

insulating membrane roof

tower scaffold erection

crowd-control barriers

structural dismantling

entryway canopy building

roof frame erection

mixed use construction

clearing after blasting

subsurface trenching

pipeline trenching

technical fit-out

building demolition work

tubular railing systems

retrofit concrete repair

mass concrete placement

construction work

structural frame build

slope stabilisation

standard houseworks

recreational structures

lighting and power setup

shell construction

gas fitting installation

building alteration

site detoxification

bath suite installation

entrance porch erection

flat complex erection

construction services

civil engineering

service trench digging

brick veneer work

service integration

restructuring work

sanitary block build

RC structure erection

bathroom refurbishment

steel column assembly

front porch construction

waterproofing work

safety barrier fitting

dismantling works

grass topsoil excavation

soil recovery work

basement excavation work

research facility build

ornamentation fitting

handrail mounting

chemical soil cleaning

rock fragmentation

veranda construction

subgrade excavation

structural demolition

thermal equipment wiring

cultural civic centre

cavity wall installation

borehole drilling

cement roof coating work

public lavatory erection

asbestos-removal work

asbestos stripping

brownfield restoration

steel skeleton building

concrete slab pouring

thermal insulation work

building construction

structural addition

roof insulation fitting

outdoor platform works

round joist erection

concrete waterproofing

floor leveling screed

electrical surge safety

HVAC electrical works

demolition dismantling

planting groundwork

access platform setup

specialized trade works

structural roof checks

escalator handrail setup

palisade fence erection

retail kiosk build

beam and column assembly

concrete-coating work

ground rehabilitation

houses construction work

TV antenna mounting

custom rail frameworks

roof framework assembly

balcony construction

soil reinforcement

scaffold installation

stoop and porch works

below-ground excavation

structural balcony build

standalone residences

community centre construction

satellite signal reception

basic structure construction

adaptable building construction

security fence installation

fire extinguishing system fit-out

concrete surface treatment

ecological restoration civil works

reinforced structure build

reclamation of waste land

attic insulation application

infrastructure decommissioning

niche civil engineering tasks

commercial fit-out electrics

multi-flat building works

ground-stabilisation work

roof repair and maintenance

electrical installation of heating systems

modular scaffold assembly

building heating electrics

communal housing projects

educational labs and classrooms construction

timber or plastic panel fitting

bathrooms construction work

structural steel erection work

boiler electric installation

ground investigation work

higher education campus build

abrasive surface cleaning

reinforced steel structures

other electrical installation work

concrete waterproofing coat

civil structure installation

sports building refurbishment

commercial building works

miscellaneous special trade construction work

thermal insulation installation

building envelope insulation

repair of concrete elements

industrial steel skeleton

structural shell creation

unique construction specialties

assisted living buildings

landscape enhancement works

fire fighting equipment installation

single-family houses construction

decorative balcony erection

wall waterproofing system

public toilet construction

flame barrier system setup

construction finish works

higher-learning complex build

environmental decontamination

earthing and grounding works

superstructure shell work

bonding cement installation

primary structure construction

academic institution structures

guardrail installation services

educational complex construction

public washroom construction

roof flashing installation

restoration of deteriorated concrete

network device installation

site development services

structural bonding services

university building construction

digital broadcast antenna setup

WC and urinal installation

individual flat development

hazardous material abatement

sanitary facility construction

earthing network installation

pressure washing structure

restroom units construction

plumbing and drain-laying work

building accessories installation

electrical infrastructure

protective concrete coating

outdoor restroom structure

roof membrane installation

academic infrastructure building

electrical network installation

hotel and restaurant build

derelict building renovation

acoustic barrier installation

lodging facility erection

heat-retention barrier install

temperature-control insulation

communal TV system installation

structural ground preparation

residential complex construction

specialised trade services

interior infrastructure install

apartment construction works

concrete base construction

multi functional buildings

sports facility repair works

building core construction

underground construction excavation

fire prevention installation

individual dwelling works

exterior illumination fitting

electrical wiring and fittings

waterproof flashing works

supporting frame assembly

interior system installation

agricultural topsoil digging

temporary structure build

tourism related construction

roof covering support build

lightning safety compliance

structural cement roof layer

escalator drive unit installation

waterproof membrane fixing

flexible space structures

reinforced concrete structure build

former landfill reclamation

steel framework installation

concrete core construction

scaffold safety installation

lightning conductor installation

reinforced foundation laying

university lecture halls build

gas safety valve installation

learning facility construction

structural steel positioning

special trade construction works

in-situ concrete construction

athletic venue maintenance

site investigation drilling

integrated building works

gutter fitting with flashings

office retail development

concrete foundation building

building service deployment

multipurpose facility build

aesthetic surface treatment

study environment building

test drilling and boring work

civil steel infrastructure

roof skeleton installation

public sanitation building

waterproof insulation layer

construction site preparation

finish screed application

air-conditioning system installation

passive fire protection installation

reinforced shell erection

multi dwelling construction

architectural feature installation

roof covering and painting

water barrier installation

structural steel element erection

sports complex construction

energy efficient roof insulation

roofing specialist trades

low-noise amplifier installation

underfloor heating screed

residential house building

tiled roof cement coating

soil stabilization injection

sports infrastructure maintenance

contaminated land rehabilitation

load-bearing concrete structure

entertainment venue construction

excavating and earthmoving work

environmental improvement works

site facility preparation

concrete cement application

stainless steel handrail installation

university halls erection

non-roof specialist services

outdoor lighting infrastructure

bonding screed installation

industrial steel erection

ornamental element assembly

communication hardware setup

multi-dwelling buildings construction

reception mast installation

concrete superstructure work

compact retail space build

accessible dwelling construction

alarm system installation

electrical systems fitting

insulating materials fitting

loft insulation construction

phone/data line integration

reinforced concrete shell build

building heating infrastructure

roof deck insulation fitting

protective fencing systems

business unit development

commercial complex construction

environmental restoration

academic centre construction

structural shell construction

contaminated soil removal

multifunctional facility erection

structural modification project

specialist electrical fitting

detached house construction

telecom infrastructure install

commercial property build

escalator system installation

additional electrical service integration

residential apartment building

intrusion detection install

derelict land rehabilitation

structural metal fabrication

wastewater pipe infrastructure build

domestic house construction

partition wall construction

building revitalisation works

tertiary campus facility construction

modular retail development

load-bearing steel components

soil-decontamination work

elderly housing facilities

structural concrete restoration

foundation grout application

post-industrial land recovery

multi-unit housing construction

building framework erection

concrete roof sealing coat

industrial scaffold works

roof-edge flashing installation

LED street lighting works

miscellaneous electrical systems installation

interior wall panel fitting

remediation infrastructure

building façade restoration

antenna alignment service

electrical connection works

flashing and guttering work

civic infrastructure build

structural concrete build

substructure damp-proofing

building envelope cladding

refurbishment of run down buildings

residential balcony fitting

education building construction

outdoor lighting installation

environmental land renewal

sanitary ware installation

steel component manufacture

habitat restoration structures

community gathering space construction

metal flashing fabrication

surface treatment of concrete

private housing development

construction access system

structural concrete works

multifunction architecture

waterproof coating application

domestic gas pipework installation

commercial building construction

dilapidated structure restoration

residential flats building

controlled demolition of asbestos

ecological rehabilitation

school and university plant works

geotechnical stabilisation

sewer and drainage fitting

damp-proof membrane fitting

corporate real-estate build

industrial metal shop work

concrete paint application

natural gas equipment install

interior/exterior renewal

protective roof paint work

exterior building cleaning

high street unit construction

convenience lavatory build

concrete frame construction

external porch structures

foundation and framework works

high-pressure blast washing

cantilevered balcony works

social housing structures

urban renewal construction

façade cladding installation

load-bearing system build

timber fence construction

leisure/sports/cultural building work

residential TV dish setup

thermal roof insulation installation

sanitary fixture installation

hospitality infrastructure

platform lift installation

block of flats construction

fire resistant structure treatment

business premises erection

roof structure maintenance

cement-based roof membrane

telecommunications equipment installation

reinforced cement roof layer

decorative concrete finish

rooftop lightning shields

adaptive reuse construction

residential care construction

burglar alarm installation

strike protection installation

cementitious roof coating

change of use construction

shower room build projects

building surface cleaning

porches construction work

bituminous covering application