Wong & Ouyang (Building Services) Ltd. (WOBS) was originally composed of a group of BS professionals used to work under the known architect, Wong & Ouyang (HK) Ltd. as the in-house building services engineers since 1970’s.
WOBS was then incorporated in September 1989 and since then practised under Wong & Ouyang Holdings Ltd. mainly as the building services consultant for various kinds of buildings including:

Residential

Institutional

Educational

Commercial

Industrial

Hospitality

Others
On 1 April 2009, WOBS formally spun off from the Wong & Ouyang group and is now practising as an independent building services consultant whilst still keeping close relationship with the Wong & Ouyang group of architects. WOBS is in the list of consultants of AACSB of Architectural Services Department - Band 1.
Core Values
Simplicity
Authentic
Compassion
Resilience
Rectitude

Our Strengths

Strong multidisciplinary expertise across mechanical, electrical, fire services, hydraulics and smart building technologies.

Close collaboration with architects and stakeholders to achieve highly coordinated, efficient and future‑ready designs.

Advanced tools such as AI, CAD, BIM and modelling technologies to enhance precision and project outcomes.
Our Vision
To be a leading building services engineering consultant in the region, shaping future‑ready, sustainable and high‑performance built environments through innovation, technical excellence and long‑term partnerships.


