43220

Installation of plumbing, heating (non-electric) and air-conditioning systems

This sub-class includes the installation of plumbing, heating and/or air-conditioning systems, including additions, alterations, maintenance and/or repair. Units in this sub-class are primarily engaged in: •installation of heating systems (electric, gas and oil) •installation of non-electric solar energy collectors •installation of plumbing, sanitary and/or sewerage equipment •installation of ventilation, refrigeration and/or air-conditioning equipment and/or ducts •installation of gas fittings •installation of steam piping •installation of fire sprinkler systems •installation of lawn sprinkler systems •installation of duct work installation

SSIC hierarchy ISIC class Crosswalks

Level

final

Mapped ISIC codes

Source

SingStat

In this section: sibling codes

class 4322 Plumbing, Heat and Air-Conditioning Installation

Official data

Official name	Singapore Standard Industrial Classification (SSIC 2025)
Issuing authority	Department of Statistics Singapore (SingStat / DOS)
Tax authority	Inland Revenue Authority of Singapore (IRAS) (IRAS)
Purpose	Mandatory at ACRA business/company registration; used by IRAS, MOM, EDB, SingStat
Active version	SSIC 2025 (15 Apr 2025)
Hierarchy level	Sub-class (5-digit) (final leaf)
Source	https://www.singstat.gov.sg/standards/standards-and-classifications/ssic
Prior versions	SSIC 2020, SSIC 2015

Hierarchy context

F→43→432→4322→43220 Installation of plumbing, heating (non-electric) and air-conditioning systems

Parent class

4322 Plumbing, Heat and Air-Conditioning Installation

Parent division

43 SPECIALISED CONSTRUCTION ACTIVITIES

Parent section

F CONSTRUCTION

Correspondence tables

SSIC 2020

43220 — Installation of plumbing, heating (non-electric) and air-conditioning systems

ISIC Rev. 5

4322 Plumbing, heat and air-conditioning installation

ISIC crosswalk

ISIC Rev. 5 class 4322 Plumbing, heat and air-conditioning installation Open ISIC class page with reverse SSIC links. Full table SSIC 2025 to ISIC Rev. 5 Open the full correspondence table.

Alphabetical index entries

Principal Title 43220 Installation of plumbing, heating (non-electric) and air-conditioning systems Alternative Title 43220 Air-conditioning system installation Alternative Title 43220 Air-conditioning system repairing Alternative Title 43220 Duct work installation Alternative Title 43220 Fire sprinkler systems installation Alternative Title 43220 Gas fittings installation

Data source: Department of Statistics Singapore (SingStat / DOS) (https://www.singstat.gov.sg/standards/standards-and-classifications/ssic). Official SSIC 2025 classification workbook.

Last data refresh: 15 Apr 2025. Classification version: SSIC 2025.

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