Derwent Housing Association Limited trading as Derwent Living Internal Stock Investment, Windows Doo

Wales

71334000 - Mechanical and electrical engineering services

90910000 - Cleaning services

44221300 - Gates

31216200 - Lightning conductors

90911300 - Window-cleaning services

71333000 - Mechanical engineering services

45421148 - Installation of gates

32324400 - Television aerials

45453100 - Refurbishment work

9300000 - Electricity, heating, solar and nuclear energy

45311100 - Electrical wiring work

45441000 - Glazing work

45442180 - Repainting work

45421100 - Installation of doors and windows and related components

50413200 - Repair and maintenance services of firefighting equipment

44221000 - Windows, doors and related items

44115600 - Stairlifts

45317000 - Other electrical installation work

45421151 - Installation of fitted kitchens

45311200 - Electrical fitting work

42416300 - Hoists

31625100 - Fire-detection systems

92224000 - Digital Television

42416100 - Lifts

51110000 - Installation services of electrical equipment

35111000 - Firefighting equipment

44480000 - Miscellaneous fire-protection equipment

45211310 - Bathrooms construction work

45442100 - Painting work

71314100 - Electrical services

35121000 - Security equipment

45310000 - Electrical installation work

31518300 - Rooflights

39141400 - Fitted kitchens

44113120 - Paving slabs

44221310 - Access gates

44482000 - Fire-protection devices

38431200 - Smoke-detection apparatus

45331100 - Central-heating installation work

50000000 - Repair and maintenance services

45260000 - Roof works and other special trade construction works

45261900 - Roof repair and maintenance work

44221220 - Fire doors

51100000 - Installation services of electrical and mechanical equipment

32324600 - Digital-TV boxes

51700000 - Installation services of fire protection equipment

31518200 - Emergency lighting equipment

39715240 - Electric space-heating apparatus

45312100 - Fire-alarm system installation work

31625000 - Burglar and fire alarms

90911200 - Building-cleaning services

45442120 - Painting and protective-coating work of structures

45342000 - Erection of fencing

45442110 - Painting work of buildings

32360000 - Intercom equipment

42160000 - Boiler installations

45311000 - Electrical wiring and fitting work

35111400 - Fire escape equipment

31625200 - Fire-alarm systems

electricity

thermal energy

solar energy

nuclear energy

energy supply

lightning conductor

earthing conductor

grounding rod

surge conductor

lightning down conductor

emergency light fixture

exit sign light

backup lighting

emergency LED

evacuation lamp

rooflight window

skylight dome

roof window

daylight rooflight

attic window

security alarm

fire alarm

burglar detector

smoke detector

break-in alarm

fire detector system

smoke detection unit

heat sensor network

fire alarm control panel

fire alarm system

automatic alarm network

fire siren system

emergency alarm infrastructure

TV aerial

antenna mast

rooftop antenna

roof aerial

television antenna

digital TV box

set-top box

DVB‑T box

satellite receiver box

digital decoder

intercom equipment

intercom systems

door intercom

audio entry systems

building communication devices

fire‑fighting equipment

fire extinguishers

fire hoses

firefighting tools

fire suppression gear

fire safety equipment

fire brigade gear

fire pumps

fire nozzles

fire blankets

fire escape equipment

evacuation equipment

fire escape devices

emergency exit tools

rescue ladders

evacuation slides

escape kits

fire exit gear

rescue descent equipment

emergency escape apparatus

security equipment

security hardware

locks

alarms

safes

intrusion detection systems

biometric devices

surveillance gear

security systems

security accessories

smoke detectors

fire alarm sensors

smoke alarm units

ionization detectors

optical smoke sensors

residential smoke detectors

commercial smoke alarms

smoke sensor modules

fitted kitchens

kitchen units

built-in kitchens

modular kitchen systems

integrated kitchen furniture

bespoke kitchen cabinetry

custom kitchen installations

kitchen work zones

electric space‑heating apparatus

room heaters

fan heaters

electric radiators

boiler installation

steam boiler unit

industrial boiler plant

boiler equipment

boiler mounting

boiler house

steam generation system

process boiler

heating boiler installation

boiler assembly

lifts

elevators

passenger lifts

goods lifts

bath lifts

service lifts

wheelchair lifts

residential elevators

hydraulic lifts

traction elevators

hoist

chain hoist

wire rope hoist

electrical hoist

manual hoist

jib hoist

workshop hoist

engine hoist

lifting hoist

block and tackle

paving slabs

slab paving

pavement panels

block paving slabs

outdoor flooring units

stairlifts

chair lifts

platform lifts

disability lifts

stair climbers

windows doors related items

door frames

window frames

doors

windows

builders’ components

joinery items

window and door systems

frame hardware

fire doors

fire-resistant doors

fire-rated doors

safety doors

fireproof doors

intumescent doors

fire exit doors

rated door assemblies

fire compartment doors

flame-resistant doors

gates

entrance gates

steel gates

garden gates

pedestrian gates

vehicular gates

fenced gates

swing gates

sliding gates

security gates

access gates

security access gates

turnstile gates

entrance barriers

controlled-entry gates

pedestrian access gates

facility gates

automated access gates

gate control systems

barrier gates

fire-protection equipment

fire extinguishing kits

fire retardant tools

firefighting accessories

safety blankets

emergency fire gear

fire hose reels

extinguishing foam kits

fire-resistant tools

fire-protection devices

sprinkler heads

hydrant valves

extinguishing system parts

fire safety devices

suppression system components

fire prevention tools

fixed fire fittings

emergency response components

bathrooms construction work

bathroom installation

washroom fitting works

shower room build projects

sanitary facility construction

restroom units construction

bath suite installation

lavatory work

bathroom refurbishment

bathroom amenities build

roof works

roof installation

roofing repair

roofing specialist trades

skylight installation

roof insulation fitting

specialized trade works

roof structure maintenance

decorative roofing tasks

complex roofing projects

roof repair and maintenance

leak sealing

tile replacement

shingle repair

waterproof membrane fixing

flashing repairs

structural roof checks

roof inspection service

preventative maintenance

rooftop upkeep

electrical installation

building wiring

electrical systems fitting

internal power grid

circuit installation

electrical infrastructure

lighting and power setup

cable routing

electrical connection works

electrical network installation

electrical wiring and fittings

power cable installation

switchboard fitting

conduit laying

lighting circuit works

domestic wiring

commercial fit-out electrics

power system wiring

internal cabling

fixture integration

electrical wiring

cable installation

internal wiring network

power supply setup

mains wiring

structured wiring installation

domestic wiring layout

circuit cabling

wiring infrastructure

conduit installation

electrical fittings

device installation

switch and socket mounting

luminaire installation

electrical accessories fitting

panel mounting

light fixture installation

terminal fitting

power outlet integration

electrical connection setup

fire-alarm installation

smoke detector fitting

fire detection system setup

emergency alarm installation

heat sensor wiring

alarm control panel fitting

fire safety network

evacuation alert system

building fire alarm works

automatic fire signal system

other electrical installation work

miscellaneous electrical systems installation

specialist electrical fitting

additional electrical service integration

central-heating system installation

boiler system fit-out

radiator pipework assembly

heating circuit setup

fence erection

perimeter fence setup

security fence installation

timber fence construction

chain-link fencing works

boundary fence assembly

acoustic barrier installation

palisade fence erection

mesh fence fitting

anti-intrusion fencing

installation of doors and windows

frame fitting

threshold installation

glazing component setup

gate installation

driveway gate fitting

pedestrian gate mount

automated gate install

metal swing gate erection

fitted kitchen installation

built-in kitchen unit fitting

modular kitchen mount

cabinetry install

kitchen appliance install

glazing work

glass panel installation

window glazing fitting

storefront glass mounting

insulated glazing unit installation

painting work

building paint application

wall and surface painting

decorative painting work

external/interior building painting

façade paintwork

protective and decorative coating of buildings

structural painting

bridge/coating work

corrosion-resistant paint installation

protective structural coating

repainting work

paint renewal

surface refresh painting

repaint coat application

refurbishment work

building overhaul

interior/exterior renewal

cosmetic renovation

structural refurbishment

equipment repair service

preventive maintenance program

troubleshooting visit

onsite repair support

maintenance contract service

repair diagnostics

component replacement service

service schedule planning

emergency repair team

calibration service

fire alarm calibration

extinguisher servicing

suppression system testing

sprinkler head replacement

fire pump inspection

hydrant flow test

alarm panel diagnostics

nozzle cleaning

foam system check

emergency lighting maintenance

motor install

pump mounting

HVAC system setup

switchgear commissioning

conveyor belt installation

generator wiring

control panel fitting

security system mount

compressor foundation alignment

electrical panel mount

electrical panel mounting

wiring connection

cable tray installation

circuit breaker setup

outlet and switch fitting

meter board assembly

grounding rod installation

conduit routing

distribution board alignment

temporary power feed setup

fire alarm system fitting

smoke detector installation

sprinkler unit setup

flame sensor mounting

fire suppression system

emergency alarm setup

fire safety device fitting

heat detector integration

gas extinguishing system

fire control panel installation

electrical installations

electrical maintenance

wiring services

power distribution

electrical systems management

lighting installation

electrical repair works

electrical safety audits

power systems servicing

mechanical systems design

machinery engineering

mechanical component design

mechanical installation services

mechanical equipment consulting

mechanical problem-solving

mechanical drafting

mechanical maintenance engineering

mechanical prototype development

mechanical analysis

M&E engineering

mechanical and electrical systems design

integrated M&E services

HVAC and electrical engineering

building systems engineering

M&E consultancy

mechanical‑electrical coordination

mechanical electrical installation

M&E technical services

M&E design and maintenance

general cleaning services

building cleaning

sanitary maintenance

janitorial operations

hygiene provision

facility upkeep

environmental cleaning

debris removal

routine maintenance cleaning

commercial building cleaning

institutional cleaning

public building maintenance

floor scrubbing

wall washing

interior common-area cleaning

facility cleaning solutions

glass cleaning

window pane washing

storefront window cleaning

high-window access cleaning

sash and frame cleaning

residential window maintenance

DTV broadcasting

high-definition TV services

DVB transmission

IPTV platform support

digital signal broadcasting

set-top box integration

digital TV channel distribution