YAU SANG ENGINEERING SERVICES LIMITED

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YAU SANG ENGINEERING SERVICES LIMITED (registered gas contractor 779-12)

YAU SANG ENGINEERING SERVICES LIMITED is a registered gas contractor, RGC number 779-12, on EMSD’s Overall Registered Gas Contractor List, registered for Class 1, Class 2, Class 3, Class 4, Class 5, Class 6, Class 7, Class 8. Its address on the list is Room G, 6 Floor, Block 4, Kwun Tong Industrial Centre, 436-446 Kwun Tong Road, Kwun Tong, Kowloon. Confirm the registration on EMSD’s list before relying on it.

Name: YAU SANG ENGINEERING SERVICES LIMITED
Chinese name: 祐生工程服務有限公司
RGC number: 779-12
Classes of gas installation work: Class 1 LPG hotplates (cylinders)
Class 2 Domestic pipework and meters
Class 3 Domestic pipework, meters and appliances
Class 4 Domestic appliances servicing
Class 5 Non-domestic pipework and meters
Class 6 Non-domestic pipework, meters and appliances
Class 7 Non-domestic appliances servicing
Class 8 Industrial appliances (process)
Telephone: 2605 9887 / 2323 3680
Address: Room G, 6 Floor, Block 4, Kwun Tong Industrial Centre, 436-446 Kwun Tong Road, Kwun Tong, Kowloon
九龍觀塘觀塘道436-446號觀塘工業中心第四期6樓G室
District: Kwun Tong District
Check it: EMSD’s list of registered gas contractors — look for RGC number 779-12

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What the classes cover

Class 1: Installation, commissioning and routine maintenance of a domestic gas appliance which is a hotplate supplied by not more than one cylinder.
Class 2: Installation of a service pipe, and any gas flow control, primary meter or primary meter installation used in connection with such pipe, in domestic premises; and an installation pipe in domestic premises.
Class 3: Installation and commissioning of a service pipe, and any gas flow control, primary meter or primary meter installation used in connection with such pipe, in domestic premises; an installation pipe in domestic premises; and a domestic gas appliance.
Class 4: Installation of domestic gas appliances to existing, adjacent gas supply points and commissioning and servicing of domestic gas appliances.
Class 5: Installation of a service pipe, and any gas flow control, primary meter or primary meter installation used in connection with such pipe, in non-domestic premises; and an installation pipe in non-domestic premises.
Class 6: Installation and commissioning of a service pipe, and any gas flow control, primary meter or primary meter installation used in connection with such pipe, in non-domestic premises; an installation pipe in non-domestic premises; and a non-domestic gas appliance.
Class 7: Installation of non-domestic gas appliances to existing, adjacent gas supply points and commissioning and servicing of non-domestic gas appliances.
Class 8: Installation, commissioning and servicing of a gas appliance which forms part of an industrial process.

EMSD’s definitions (Gas Safety Portal).

Getting there

Nearest MTR: Kwun Tong · 115 m, about 1 min on foot
Nearest MTR exit: Kwun Tong Exit B2 · 41 m, about 1 min on foot
Nearest car park: Prosperity Place Car Park · 74 m, about 1 min on foot
Bus & minibus stops within 300 m: 39

All registered gas contractors in Hong Kong · Registered gas contractors in Kwun Tong

Data source: Electrical and Mechanical Services Department, Overall Registered Gas Contractor List and Contractor Lists 1–3 (data.gov.hk); district boundaries from the Home Affairs Department · Data © the Government of the HKSAR · Data refreshed 2026-10-05 · EMSD updates the lists monthly; synced weekly