About us
Founded in 1973 as Liberty Electrical Engineering Company Limited, A. Liberty Engineering Co Ltd has continually evolved to meet the dynamic needs of the electrical services sector. With a rich history in design and contracting, the company has expanded its offerings to include cutting-edge solutions in the realm of sustainable energy.
In response to the burgeoning demand for electric vehicle infrastructure, A. Liberty Engineering proudly introduces its self-branded EV chargers, designed for both AC and DC supercharging. These state-of-the-art systems enhance the efficiency of electric vehicle charging while seamlessly integrating with existing Intelligent EV Charging and IoT LV Switchboard Monitoring systems.
A. Liberty Engineering is committed to innovation across a diverse range of services, including smart E&M systems, modeling fire services, and plumbing improvements. With a focus on driving the future of energy, the company remains a leader in technological advancement within the industry.
In recent, the professional services have expanded as below:
- Intelligent Ev Charging system
- IOT LV switchboard monitoring system
- Smart E&M System
- Modeling Fire services system
- Plumbing and Drainage Improvment system
- Mobilizing DC charger system
- High Voltage Switching and Capacitor bank System
- Recycling old lighting fittings

50+
Years
in industry
1000+
Projects
Completed
500+
Clients
Served
Featured Projects
A. Liberty can deliver complex, challenging projects with the quality and safety that clients expect. We provide comprehenseive services for client across diverse industries.
Timeline
- TMR Electric Bus Charging Facilities
- E&M Works for The Hong Kong Girl Guides Association at the New Headquarters and Youth Hostel Development
- MVAC, Electrical System and Fire Service System of Building Complex at Protion 2a
- Universal Accessibility Facility at Footbridges, Elevated Walkways and Subways - Package 6 Contract 2
- Electrical Works for ASD Construction of Town Park in Area 68, Tseung Kwan O
- Electrical Works at Nos. 46-50 Gillies Avenue South / Nos. 12A-22A Bulkeley Street / Nos. 39-41 Whampoa Street (Site G) and Nos. 23-37 Whampoa Street / Nos. 79-81 Baker Street (Site E)
- Electrical Works at 292 Prince Edward Road West
- Electrical Works at Fuk Chak Street, Tai Kok Tsui
- Electrical Works at No.57-59 Ma Tau Wai Road & 2-20 Bailey Street, Kowloon KIL 1151
- Electrical Works at 180-184 Shau Kei Wan Road
- Roadworks R2, R5 and D9 at LOHAS Park, Tseung Kwan O
- Electrical Works at No.11-33,Li Tak Street, Tai Kok Tsui, Kowloon
- Electrical Works at 11-29 Davis Street
- Electrical Works at 168-188 Tai Po Road, Sham Shui Po.
- Electrical Works at Harmony Mansion at 380-394 Hennessy Road, Wan Chai, Hong Kong
- Electric Centre Renovation
- Electrical Works at 590-600 Canton Road, Yau Ma Tei, Kowloon.
- 其士建築有限公司 - 太子道西單棟大廈
- 利園商場 - 裝修商鋪, 供應及安裝電器, 年檢, WR,
及保養電燈 - 中海建築及禮頓聯營公司 - 灣仔運動及廁所大型水泵房
- 恆基 - 紅磡黃埔街23-37(地盤E&G)
- 恆基 - 沙田城市廣場
- 恆基 - 啟德臨時線
- 香港方艙醫院
- Paul Y - 科學園無障礙天橋
- 合約編號HY/2022/08 - 為行人天橋、高架行人道及行人隧道提供暢通通行設施
- 恆基 - 仁安醫院
- 香港電燈公司 - PD設建部
景光街跑馬地 住宅 錦屏街 添馬艦 - 干諾道中廣告牌設計及安裝
- 香港電燈公司 - 上環林士街, 馬師道, S0 MTR, 筲箕灣, 杏花邨, 馬師道, 柏架, 祥利街 醫院道, 香葉道, 業勤街, 堅尼地道支站, 利南道支站, 夏愨道灣仔支站
- 軒尼詩道380-392號
- 黃埔花園停車場 - 光管及燈掣
- 海逸酒店地下酒吧 - 光管及燈掣
- Dairy Farm - 7-11 便利店鋪位
- 恆基 - 永康街
- 東方紅商鋪位
- 恆基 - 西環爹核士街
- 佐敦白加士街93-103號
- 大角咀利得街11-33號
- 香港哥爾夫球會
- 筲箕灣道180-184號
- 其士建築有限公司 - 西灣河180號
- 宏記建築有限公司 - 東京街三條連通天橋
- 恆基 - 馬頭圍壹座四十多層高
- 恆基 - 大埔道188號
- Sino & Kerry - 上環荷里活道 單棟大廈
- Sino - 僑蔭街
- 香港房屋處2年全港保養及維修, 年檢及WR2
- 其士建築有限公司 - 福澤街
- 新港城、新都城
- 大圍火車站、筲箕灣地鐵站
- 日出康城地鐵站行人路街燈、路邊花槽燈
- 浙江街19-23號
- 赫蘭道11-12號
- 太陽能版工程 - 泳池及沙灘
- 合和實業有限公司 - 裝修商鋪, 供應及安裝電器, 年檢WR2及保養
- 國際德祥 - 保華
- 大埔火車路 - 銅帶炸釬
- 錦田 - 火車維修
- 信和置業有限公司
- 全港燈火牛房安裝及維修
- 電燈公司大樓 - 控制及供電系統總寫字樓
- 東園酒家
- 華人置業
- 浙江街 - 旭日豪庭
- 香港大廈銅鑼灣廣場
- 金城建築有限公司
- 北角電燈中心
- 深圳灣大酒店
- 東湖賓館
- 東莞賓館
- 湛江賓館
- 荃灣凱旋戲院
- 浸會醫院
- 華人總行寫字樓
- 九龍塘會所
- 南豐及柏架電纜隧道
全長五點七公里,照明通訊統及電纜梯架 - 北角電燈中心全座電器及供電系統
- 金堡酒店
- 永安百貨公司 - 上環總行三層
- 永安百貨公司 - 銅鑼灣分行二層
- 永安百貨公司 - 油麻地分行二層
- 香港電燈公司 - 南丫島發電廠第一期1號及2號發電機組及控制中心通訊組及所有燈光照明系統
- 寶源光學儀器四層工廠
- 鼎大金屬製品廠三層工廠
- 青城夜總會
- 海洋公園 - 蝴蝶屋 海洋劇場 水上樂園
- 九龍塘新德園
- 香港電燈公司建設部 - 香港區多個分區變壓站通訊供電本站照明系統
- 華富邨至數碼港電纜隧道 - 電燈照明及電纜梯架
- 鴨利洲電燈大樓及停車場舊寫字樓二座及四個火牛房
- 曉光街、曉華閣、曉光閣
- 黃埔和記大廈寫字樓
- 國際城市寫字樓
MANAGEMENT

Managing Director
HK Choy

Director
Alan Leung

Director
Billy Choy
Meet Our Team

Civil Project
Cyrus Yu

Public Housing Works
Frankie Lam

Public Garden & Club House Projects
Jeremy Ip

Water & Drainage Control Projects
Joe Wu

Acade Decoration & Energy Saving Works
Kenneth Ho
OUR CLIENTS
We provide professional and technical solutions to the following clients delivering engineering, mechanical, and construction services.