Notice 告示Before work starts
Is this contractor registered?Verify the number before you hire.註冊承建商查詢
One lookup across Buildings Department, EMSD and FSD registers for 21,751 companies: minor works classes and types, electrical and gas contractors, and expiry dates, each with its source and check date.
Registered Contractor
註冊編號 · numbers you can verify
- MWC 425/2011Minor works contractor
- GBC 13/2024General building contractor
- 000004Electrical contractor
- 034-92Gas contractor
- RC2/0596Fire service contractor
Tap a number to try the verify tool.
- registered companies
- 21,751
- registered companies
- on 2+ registers
- 3,327
- on 2+ registers
- registers fetched
- 18/10/2026
- registers fetched
A government register only shows registration. It is not a government recommendation. Listed alphabetically: no ranking, no paid placement.
Tools查冊工具
The registers政府名冊
All registers →- Buildings Department8,719Registered Minor Works Contractors (company)Buildings Ordinance (Cap. 123)Air-con brackets, drying racks, canopies, windows, signboards and drains: minor works must be done by a contractor registered for that class and type.
- Buildings Department847Registered General Building ContractorsBuildings Ordinance (Cap. 123)May carry out general building and street works; BD also lists RGBCs as prescribed registered contractors for Class I to III minor works.
- EMSD14,685Registered Electrical ContractorsElectricity Ordinance (Cap. 406)Work on fixed electrical installations (including inspection and repair) must be done through a registered electrical contractor using registered electrical workers.
- EMSD442Registered Gas ContractorsGas Safety Ordinance (Cap. 51)Gas pipework, meters and appliances such as gas water heaters and hobs must be installed by registered gas installers employed by a registered gas contractor.
- Fire Services Department193Registered Fire Service Installation Contractors (partial list)Fire Service (Installation Contractors) Regulations (Cap. 95A)FSD only publishes the list of registered contractors willing to sell approved portable equipment, so only those appear here.
Registered specialist contractors: ventilation 201 · demolition 111 · foundation 163 · site formation 214 · ground investigation 54
Minor works classes I · II · III小型工程 第 I · II · III 級別
Classes and types explained →BD groups minor works into three classes by complexity and risk. A contractor needs both the class and the type (A to H) on its registration. Counts are companies on the register that may do each class.
- IHigher risk58 items
Needs a prescribed building professional (e.g. an Authorized Person) and a prescribed registered contractor; submit at least 7 days before work starts.
1,000 companies for Class I → - IIMedium risk68 items
A prescribed registered contractor; submit at least 7 days before work starts.
8,563 companies for Class II → - IIILower risk61 items
A prescribed registered contractor; nothing before work starts, documents within 14 days of completion. Most household jobs, such as air-con brackets, are here.
8,595 companies for Class III →
THE EIGHT TYPES · 類型
- AAlteration and addition works8,390
- BRepair works5,815
- CWorks relating to signboards4,715
- DDrainage works7,352
- EWorks relating to structures for amenities5,972
- FFinishes works6,234
- GDemolition works7,313
- HWorks relating to ventilation systems inside buildings809
Source: BD: Minor Works Control System
Which registered person for the job?做甚麼工程，找哪類註冊人士？
- Air-con brackets, drying racks, window canopiesMinor works contractor (usually Class III)
- New sockets, rewiring, distribution boardRegistered electrical contractor (ask for a WR1)
- Gas water heater, hob, gas pipesRegistered gas contractor
- DrainsMinor works Type D (drainage)
- SignboardsMinor works Type C (signboards)
- Removing unauthorised worksMinor works Type G, or a general building contractor
Pre-hire checklist聘請前清單
- 1Work out the kind of job and which register applies
- 2Get the registration number, verify it, and match the name to the quote
- 3Minor works: the register must show the class and type you need
- 4Check the expiry; “@” on BD registers means renewal applied for
- 5Get a written quote: scope, timetable, payment stages, warranty
Registration numbers issued in 20262026 年新發註冊編號
Companies on BD registers whose number carries the year 2026, newest number first (list dated 15/10/2026). A registration record, not a recommendation.
- MWC 136/2026Minor works contractorCHUN TAT ALUMINIUM ENGINEERINGexpires 07/09/2029
- MWC 128/2026Minor works contractorEGO INTERIOR DESIGN LIMITEDexpires 26/08/2029
- MWC 125/2026Minor works contractorBEN DESIGN ENGINEERING LIMITEDYuen Long · expires 02/10/2029
- MWC 120/2026Minor works contractorHERO RESOURCES CREATIVE LIMITEDKwun Tong · expires 12/10/2029
- MWC 117/2026Minor works contractorLEADING CONSTRUCTION LIMITEDTsuen Wan · expires 05/10/2029
- MWC 112/2026Minor works contractorFUNGAI DECORATION & DESIGN ENGINEERINGexpires 08/08/2029
Site notices: latest news工地告示板：最新消息
All news →Contractors newly registered or no longer listed each month (compiled from register changes), and summaries of BD and EMSD notices about hiring contractors.
All 18 districts全港十八區
District index →- Central & Western617
- Wan Chai567
- Eastern1,171
- Southern292
- Yau Tsim Mong2,084
- Sham Shui Po1,383
- Kowloon City972
- Wong Tai Sin1,036
- Kwun Tong2,902
- Kwai Tsing2,334
- Tsuen Wan1,543
- Tuen Mun1,233
- Yuen Long1,148
- North583
- Tai Po436
- Sha Tin1,555
- Sai Kung394
- Islands186
District is the business location on BD registers, and the address district on EMSD and FSD lists.
Where the data comes from: published government registers
Updated 18 Oct 2026- Buildings Department: register full lists (PDF): minor works types and service flags10,370
- Buildings Department: registers of building professionals and contractors (full list)19,752
- EMSD: Registered Electrical Contractors14,703
- EMSD: Registered Gas Contractors (overall list, classes of gas installation work)442
- FSD (CSDI): RFSIC locations; RFSICs interested in Cap. 636 improvement works715
- FSD: Registered Fire Service Installation Contractors selling approved portable equipment193
A government register only shows registration. It is not a government recommendation. Facts from companies' own websites are labelled “not verified”. Sources and matching method →
FAQ常見問題
How do I check if a contractor is registered?
Enter the registration number from the quote in the verify tool, or search by company name. We compile the registers published by the Buildings Department, EMSD and FSD. Before hiring, re-check on BD's register or EMSD's register.
What is the difference between minor works Class I, II and III?
BD groups minor works by complexity and risk. Class I needs a prescribed building professional and a prescribed registered contractor; Classes I and II need documents at least 7 days before work starts; Class III needs nothing before, and documents within 14 days of completion. The contractor must be registered for both the class and the type. (BD)
Who can add sockets or rewire my flat?
Work on fixed electrical installations must go through a registered electrical contractor, done by registered electrical workers. Ask for a WR1 work completion certificate afterwards (WR1 / WR2 explained).
Who can install a gas water heater?
A registered gas installer employed by a registered gas contractor. A new water heater or hob in a flat is Class 3 work (EMSD).
Does being on a register mean the government recommends them?
No. A government register only shows registration, not a recommendation. We list companies alphabetically, with no ranking and no paid placement.
Based on the government pages linked, checked October 2026.