UK SICClass
UK SIC 43.21—Electrical installation
Class · UK Standard Industrial Classification (2026)
Where 43.21 sits
- F Construction
- 43 Specialised construction activities
- 43.2 Electrical, plumbing and other construction installation activities
- 43.21 Electrical installation
Contains 4 narrower codes
What 43.21 includes
- This class includes the installation, repair and maintenance of electrical systems in all types of residential and non-residential buildings and civil engineering structures.
- Installation of: • electrical wiring and fittings • telecommunication wiring • computer network and cable television wiring, including fibre-optic • satellite dishes • lighting systems • fire alarms • burglar-alarm systems • street lighting and electrical signals • airport runway lighting • photovoltaic systems on buildings • power storage systems
- Installation of chargers for electric vehicles
- Connecting of electric appliances and household equipment, including baseboard heating
What 43.21 excludes
- Construction of distribution lines for electricity and telecommunication, see 42.22
- Construction of solar and wind energy farms, see 42.22
- Construction of stations for distribution of electricity (e.g. for electric vehicles), see 42.22
- Installation of lightning conductors, see 43.24
- Monitoring and remote monitoring of electronic security systems (e.g. burglar alarms and fire alarms, including their installation and maintenance), see 80.09
43.21 in other systems
ANZSICAustralia · New Zealand
- 3232 Electrical Services approximate via ISIC 4321
- 3234 Fire and Security Alarm Installation Services approximate via ISIC 4321
- 3239 Other Building Installation Services approximate via ISIC 4340
- 3233 Air Conditioning and Heating Services approximate via ISIC 4340
- 3224 Structural Steel Erection Services approximate via ISIC 4340
- 3291 Landscape Construction Services approximate via ISIC 4340
- 3109 Other Heavy and Civil Engineering Construction approximate via ISIC 4340
- 3212 Site Preparation Services approximate via ISIC 4340
ATECOItaly
- 43.21 Electrical installation exact via ISIC 43.21
- 43.21.01 Installation of lighting and photovoltaic systems on buildings approximate via ISIC 4321
- 43.21.02 Installation of telecommunication wiring and other similar systems approximate via ISIC 4321
- 43.21.03 Installation of street lighting and airport runway lighting approximate via ISIC 4321
- 43.21.04 Installation of electrical signs and decorative lights approximate via ISIC 4321
- 43.21.05 Installation of electrical votive and cemetery lighting systems approximate via ISIC 4321
- 43.32 Joinery installation approximate via ISIC 4340
- 43.22 Plumbing, heat and air-conditioning installation approximate via ISIC 4340
CNAE BrazilBrazil
- 43.21-5 Electrical installations approximate via ISIC 4321
- 4321-5/00 Electrical installation and maintenance inferred via ISIC 4321
- 4391-6/00 Foundation works inferred via ISIC 4321
- 4399-1/01 Construction management inferred via ISIC 4321
- 4399-1/04 Services for the operation and supply of equipment for transporting and lifting cargo and people for use in construction projects inferred via ISIC 4321
- 4399-1/05 Drilling and construction of water wells inferred via ISIC 4321
- 4399-1/99 Specialized construction services not specified previously inferred via ISIC 4321
- 4399-1/02 Assembly and disassembly of scaffolding and other temporary structures inferred via ISIC 4321
CNAESpain
- 43.21 Electrical installations exact via ISIC 43.21
- 43.32 Carpentry installation approximate via ISIC 4340
- 43.22 Plumbing, installation of heating and air conditioning systems approximate via ISIC 4340
- 43.31 Revocation approximate via ISIC 4340
- 43.12 Land preparation approximate via ISIC 4340
- 43.11 Demolition approximate via ISIC 4340
- 43.34 Painting and glazing approximate via ISIC 4340
- 43.33 Floor and wall coverings approximate via ISIC 4340
HSICHong Kong
- 4311 Demolition approximate via ISIC 4340
- 4312 Site preparation approximate via ISIC 4340
- 432199 Combined and other installation and maintenance of electrical and mechanical equipment inferred via ISIC 4321
- 432901 Lift and escalator, installation and maintenance inferred via ISIC 4321
- 439913 Window installation and glass glazing inferred via ISIC 4321
- 432106 Telecommunications equipment, installation and maintenance inferred via ISIC 4321
- 432101 Electrical wiring and fitting inferred via ISIC 4321
- 432204 Gas fitting, installation and maintenance inferred via ISIC 4321
ICNEAChina
- 4910 Electrical installation approximate via ISIC 4321
- 4920 Plumbing and equipment installation approximate via ISIC 4340
- 4991 Installation of stadium facilities approximate via ISIC 4340
- 4839 Other marine engineering buildings approximate via ISIC 4340
- 4999 Other building installations approximate via ISIC 4340
- 5011 Decoration and decoration of public buildings approximate via ISIC 4340
- 5012 Residential decoration and decoration approximate via ISIC 4340
- 5013 Building curtain wall decoration and decoration approximate via ISIC 4340
ISICUnited Nations (global)
- 4321 Electrical installation exact
- 4340 Intermediation service activities for specialized construction services approximate via ISIC 43.21
JSICJapan
- 0812 Electrical cable-wiring work approximate via ISIC 4321
- 0822 Cable tv broadcasting equipment installation work approximate via ISIC 4321
- 0811 General electric work approximate via ISIC 4321
- 0823 Electrical signal system work approximate via ISIC 4321
- 0821 Telecommunication work, except cable tv broadcasting equipment installation work approximate via ISIC 4321
- 0841 Machine and equipment installation work, except lifting-carrier equipment work approximate via ISIC 4340
- 0832 Air conditioning and heating equipment installation work approximate via ISIC 4340
- 0833 Water supply and drainage work and sanitary equipment installation work approximate via ISIC 4340
KSICSouth Korea
- 42312 Electrical works for buildings approximate via ISIC 4321
- 42311 Electrical works for heavy and civil engineering structures approximate via ISIC 4321
- 42321 Communication works for heavy and civil engineering structures approximate via ISIC 4321
- 42322 Communication works for buildings approximate via ISIC 4321
- 42500 Repair and maintenance works for construction works and supplementary facilities approximate via ISIC 4321
- 42203 Installation of lifting equipment approximate via ISIC 4340
- 42205 Fire fighting installation approximate via ISIC 4340
- 42110 Wrecking and demolition of buildings and other structures approximate via ISIC 4340
MSICMalaysia
- 4321 Electrical installation exact via ISIC 4321
- 43217 Installation of electrical chargers approximate via ISIC 4321
- 43211 Electrical wiring and fittings approximate via ISIC 4321
- 43218 Installation of photovoltaic systems on buildings approximate via ISIC 4321
- 43212 Telecommunications wiring approximate via ISIC 4321
- 43213 Computer network and cable television wiring approximate via ISIC 4321
- 43214 Satellite dishes approximate via ISIC 4321
- 43215 Lighting systems approximate via ISIC 4321
NACEEuropean Union
- 43.21 Electrical installation exact
- 43.32 Joinery installation approximate via ISIC 4340
- 43.22 Plumbing, heat and air-conditioning installation approximate via ISIC 4340
- 43.12 Site preparation approximate via ISIC 4340
- 43.11 Demolition approximate via ISIC 4340
- 43.34 Painting and glazing approximate via ISIC 4340
- 43.33 Floor and wall covering approximate via ISIC 4340
- 43.13 Test drilling and boring approximate via ISIC 4340
NAFFrance
- 43.21 Electrical Installation exact via ISIC 43.21
- 43.21G Electrical installation work in all local approximate via ISIC 4321
- 43.21H Electrical installation work on the way approximate via ISIC 4321
- 43.22 Plumbing and heating installation and air conditioning approximate via ISIC 4340
- 43.12 Work site preparation approximate via ISIC 4340
- 43.11 Demolition approximate via ISIC 4340
- 43.33 The work of construction of floors and walls approximate via ISIC 4340
- 43.13 Test drilling and boring approximate via ISIC 4340
NAICSUnited States
- 238210 Electrical Contractors and Other Wiring Installation Contractors approximate via ISIC 4321
- 237310 Highway, Street, and Bridge Construction approximate via ISIC 4321
- 238290 Other Building Equipment Contractors approximate via ISIC 4321
- 238310 Drywall and Insulation Contractors approximate via ISIC 4340
- 238220 Plumbing, Heating, and Air-Conditioning Contractors approximate via ISIC 4340
- 213113 Support Activities for Coal Mining approximate via ISIC 4340
- 213114 Support Activities for Metal Mining approximate via ISIC 4340
- 213115 Support Activities for Nonmetallic Minerals (except Fuels) Mining approximate via ISIC 4340
NAICS CanadaCanada
- 238210 Electrical contractors and other wiring installation contractors approximate via ISIC 4321
- 237310 Highway, street and bridge construction approximate via ISIC 4321
- 238310 Drywall and insulation contractors approximate via ISIC 4340
- 238220 Plumbing, heating and air-conditioning contractors approximate via ISIC 4340
- 238910 Site preparation contractors approximate via ISIC 4340
- 236210 Industrial building and structure construction approximate via ISIC 4340
- 237990 Other heavy and civil engineering construction approximate via ISIC 4340
- 238110 Poured concrete foundation and structure contractors approximate via ISIC 4340
NICIndia
- 4321 Electrical installation exact via ISIC 4321
- 432101 Installation, repair and maintenance of electrical wiring and fittings approximate via ISIC 4321
- 432102 Installation, repair and maintenance of telecommunications wiring including computer network and cable television wiring, including fiber optic approximate via ISIC 4321
- 432103 Installation, repair and maintenance of radar infrastructure approximate via ISIC 4321
- 432104 Installation, repair and maintenance of lighting systems (including street lighting and airport runway lighting) approximate via ISIC 4321
- 432105 Installation, repair and maintenance of fire alarm system and burgler alarm system approximate via ISIC 4321
- 432106 Installation, repair and maintenance of power storage systems and electric charging stations for electric vehicles approximate via ISIC 4321
- 432107 Installation, repair and maintenance of solar systems on buildings approximate via ISIC 4321
NOGASwitzerland
- 4321 Electrical installation exact via ISIC 43.21
- 432100 Electrical installation approximate via ISIC 4321
- 4332 Joinery installation approximate via ISIC 4340
- 4322 Plumbing, heat and air-conditioning installation approximate via ISIC 4340
- 4312 Site preparation approximate via ISIC 4340
- 4311 Demolition approximate via ISIC 4340
- 4333 Floor and wall covering approximate via ISIC 4340
- 4313 Test drilling and boring approximate via ISIC 4340
PKDPoland
- 43.21 Carrying out electrical installations exact via ISIC 43.21
- 43.21.Z Carrying out electrical installations approximate via ISIC 4321
- 43.22 Installation of water, sewage, heating and air conditioning systems approximate via ISIC 4340
- 43.32 Installing construction joinery approximate via ISIC 4340
- 43.11 Demolition and demolition of buildings approximate via ISIC 4340
- 43.12 Preparing the site for construction approximate via ISIC 4340
- 43.13 Excavation and geological engineering drilling approximate via ISIC 4340
- 43.31 Plastering approximate via ISIC 4340
SCIANMexico
- 238210 Electrical installations in buildings approximate via ISIC 4321
- 238290 Other facilities and equipment in buildings approximate via ISIC 4321
- 238330 Installation of flexible and wooden flooring approximate via ISIC 4340
- 238340 Installation of ceramic and tile flooring approximate via ISIC 4340
- 238110 Foundation work approximate via ISIC 4340
- 238130 Masonry work approximate via ISIC 4340
- 238190 Other outdoor jobs approximate via ISIC 4340
- 238320 Painting work and other wall coverings approximate via ISIC 4340
SICUnited States (legacy)
- 1731 Electrical Work approximate via ISIC 4321
- 1796 Installing Building Equipment approximate via ISIC 4321
- 1711 Plumbing, Heating, Air-Conditioning approximate via ISIC 4321
- 7622 Radio and Television Repair approximate via ISIC 4321
- 1611 Highway and Street Construction approximate via ISIC 4321
- 1622 Bridge, Tunnel, and Elevated Highway approximate via ISIC 4321
- 1721 Painting and Paper Hanging approximate via ISIC 4321
- 8741 Management Services approximate via ISIC 4321
SNISweden
- 43.21 Electrical installation exact via ISIC 43.21
- 43.210 Electrical installation approximate via ISIC 4321
- 43.32 Joinery installation approximate via ISIC 4340
- 43.22 Plumbing, heat and air-conditioning installation approximate via ISIC 4340
- 43.12 Site preparation approximate via ISIC 4340
- 43.11 Demolition approximate via ISIC 4340
- 43.34 Painting and glazing approximate via ISIC 4340
- 43.33 Floor and wall covering approximate via ISIC 4340
SSICSingapore
- 4321 Electrical Installation exact via ISIC 4321
- 43210 Electrical works approximate via ISIC 4321
- 43907 Production of Prefabricated Prefinished Volumetric Construction (PPVC) modules inferred via ISIC 4321
- 43909 Other specialised construction activities n.e.c. inferred via ISIC 4321
- 43901 Foundation works; micropiling, conventional piling and underpinning inferred via ISIC 4321
- 43904 Production of pre-cast components inferred via ISIC 4321
- 43906 Sandblasting/shotblasting works (except ships) inferred via ISIC 4321
- 43902 Brick laying, stone setting and cement works inferred via ISIC 4321
WZGermany
- 43.21 Electrical installation exact via ISIC 43.21
- 43.21.0 Electrical installation approximate via ISIC 4321
- 43.32 Joinery installation approximate via ISIC 4340
- 43.22 Plumbing, heat and air-conditioning installation approximate via ISIC 4340
- 43.12 Site preparation approximate via ISIC 4340
- 43.11 Demolition approximate via ISIC 4340
- 43.33 Floor and wall covering approximate via ISIC 4340
- 43.13 Test drilling and boring approximate via ISIC 4340
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