Which registered person do I need for this job?
Different kinds of work in Hong Kong are regulated by different departments, each with its own register. Here is which register common household jobs map to; the government pages are the final word.
| Air-con brackets, drying racks, window canopies | Minor works, usually Class III (BD's own household examples). Hire a minor works contractor or general building contractor registered for the class and type; the exact item is in Schedule 1 of the Building (Minor Works) Regulation. |
|---|---|
| Signboards | Minor works Type C (signboards): contractors registered for Type C. |
| Drains | Minor works Type D (drainage): contractors registered for Type D. |
| Removing unauthorised building works | Depending on scale, minor works Type G (demolition) or general building works: Type G contractors or general building contractors. |
| New sockets, rewiring, distribution board | Work on fixed electrical installations must go through a registered electrical contractor. See electrical work and WR1 / WR2. |
| Gas water heater, hob, gas pipes | Registered gas installers of the right class, employed by a registered gas contractor. See the gas works guide. |
| Sprinklers, fire alarms | A registered fire service installation contractor (FSD). |
| Class I minor works | Needs a prescribed building professional (such as an Authorized Person) and a prescribed registered contractor. Check an AP's number with the verify tool. |
Sources (government pages)
- BD: Who can carry out minor works
- BD: Schedule 1, Building (Minor Works) Regulation
- EMSD: Periodic inspection, testing and certification
- EMSD: Gas safety registers
Written by us and checked against the pages above in October 2026; where they differ, the government pages prevail.