Sani C S Chang (Managing Director)

B. Architecture


Sani has an architectural background with a broad experience in the design, documentation and construction administration of buildings. His involvement spans all aspects of the process and has included periods with a major Client Body, Architectural Practices and Managing Contractors. Over the last 22 years, he has increasingly been involved with the design & procurement of façade systems. Sani brings a technical rigour to the selection of appropriate systems and has particular expertise in cost effective documentation. He is increasingly involved in managing façade teams in different countries as well as developing a good understanding of facade procurement internationally.


Email: sani@hcch.sg ; Mobile: +65 9685 8336



Edward Sun (Principal Facade Engineer)

B. Eng Civil Engineering


Edward graduated with a Bachelor Degree in Civil Engineering with extensive experience in both structure and designing of curtain walling and cladding. He has 25 years working experience in the construction industry and including 13 years in façade industry.  He started his working experience overseas in China and Germany for 9 years and 16 years in Singapore.  He has progressed from a Design Engineer to a Design and Engineering Manager in early 2004 resulted from his cumulative practical experience and knowledge over the years in the Construction Industry and Façade Industry.


Email: edward@hcch.sg ; Mobile: +65 98899132



Chang Hwa Chiang (Principal Facade Specialist)

Dip. Architectural Technology


Hwa Chiang is a founding member of HCCH Consulting in Singapore and  has 22 years experience in the facade industry. He has a wide range of experience in designing all types of façade systems and has been involved in many projects from design concept through to completion. He has a great understanding in Unitised Curtain Wall systems, Metal Claddings, Glass Structures system and all façade systems and would be valuable in providing optimum solutions to all parties.


Email: hwachiangi@hcch.sg ; Mobile: +65 91451837



Low Lily (Principal Facade Specialist)

Bcs. Construction Management


Lily has been primarily involved in the design, development,

co-ordination, preparation and handles all technical aspects of the curtain wall and external cladding works for the past 18 years. She has been a key team player actively involved in Singapore projects such as, The Cathay Building, Terminal 3 Airport, Daylighting Mock-Up, Maybank, Orchard Scotts Condominium, Paragon, Suntec City, The Heeren.

Lily is a Principal Facade Specialist in HCCH and with her rich experience and attention to details, will be able to provide value-added services to any large scale facade projects.


Email: lily@hcch.sg ; Mobile: +65 93658510



Paul Chahal (Principal Facade Specialist)

B. Eng Civil


Paul has an extensive background in façade systems with a broad knowledge of design, limitations, procurement and delivery of various façade systems He brings a specialist sub contractor experience to the façade team.

He is currently based in Singapore, and has worked in the UK, India, Thailand, Indonesia and The Philippines.

He has specialist experience in Project Management and delivery of façade projects.


Email: paulchahal@hcch.sg ; Mobile: +65 91305475, +62 816988061



Eddy Perrine (Technical Advisor)

B. Mech.


Eddy has had 30 years experience in the design, testing, manufacturing and installation of all types of curtain wall systems.  He is skilled in advanced design analysis and has been involved in many major facade projects in Germany/ Australia/ Singapore/ Malaysia/ China/Thailand/UAE. He has successfully design, tested, fabricated and installed facade systems from a contracting perspective and brings a balanced and pragmatic approach to our facade consultancy.


Email: eddyperrine@fingalbay.net