432202Water plumbing and drain laying
供水管及排水管鋪設
Why 6 digits?
HSIC subclasses are 6 digits. The first four match the international ISIC class; Hong Kong adds a two-digit local suffix for finer detail, especially across its import and export trade, so a code steps from a 4-digit class straight to a 6-digit subclass. More on the HSIC structure.
This activity involves the installation and maintenance of water plumbing systems and drainage systems within buildings and other structures. It includes tasks such as laying pipes for water supply and drainage, ensuring proper flow and disposal of water.
This classification includes
- drain laying at building and structures
- water plumbing at buildings and structures
Licences and approvals
What this activity needs to operate
No sector-specific licence applies to this activity. It can be set up as a standard Hong Kong company without extra regulatory approvals. Premises-based or product-based permits can still apply case by case; Emerhub confirms the exact position during scoping.
Offshore profits claim feasibility
LowThis activity is inherently tied to Hong Kong premises as plumbing and drain laying services are performed on-site. Contracts for these services are typically negotiated and concluded within Hong Kong, making it difficult to qualify for offshore treatment.
Business registration wording
Suggested business nature for this activity
English
WATER PLUMBING AND DRAIN LAYING SERVICES
40/60 characters
Chinese 中文
供水管及排水管鋪設
9/30 characters
Industry statistics
How large is this sector in Hong Kong?
Official figures are compiled at industry level. These are for Construction (F), the industry this classification belongs to.
27,200
Establishments (2023)
195,800
Persons engaged (2023)
C&SD Annual Survey of Economic Activities 2023Verified 2026-07-14
Standard compliance
Compliance every Hong Kong company shares
Beyond anything specific to this activity, every Hong Kong company handles two-tiered profits tax, the annual return (Form NAR1) within 42 days of its incorporation anniversary, audited accounts, MPF enrolment for staff, and a company secretary. Emerhub runs all of it on your behalf.
See the full Hong Kong compliance calendarFrequently asked questions
Do I need a license for plumbing services?
Yes, you need to obtain a license from the Water Supplies Department to operate plumbing services in Hong Kong.
What are the tax implications for my plumbing business?
Your plumbing business will be subject to Hong Kong profits tax on income generated within the territory.
Can I operate plumbing services without a local partner?
Yes, foreign investors can operate plumbing services in Hong Kong without a local partner, but must comply with local regulations.
Incorporate in Hong Kong
Starting a water plumbing and drain laying business in Hong Kong?
Emerhub incorporates your company, registers the business nature above with the IRD, files every licence application, and runs your company secretary and compliance calendar. You provide the documents; Emerhub handles every government interaction.
Start incorporation with Emerhub