Sourya Vongmanisak, P.Eng.

Principal Building Science Consultant

Built Environment Solutions

Montreal, Canada


Mr. Sourya Vongmanisak is a Principal Building Science Consultant of the Building Sciences department in Montréal, Québec.  During his career, he has acquired extensive experience which has enabled him to work on retrofit, rehabilitation, and assessment/evaluation/testing projects. Mr. Vongmanisak has particular expertise in building envelope assessment/evaluation projects and has completed over 200 of these projects nationwide in the past 11 years.

He has experience in a wide variety of projects for numerous national clients such as financial institutions, commercial, governmental institutions, and real estate management agencies. Mr. Vongmanisak has significant site experience to provide specialized site services. Through his experiences dealing with different clients, contractors, and trades, he has developed a strong understanding of the importance of building and maintaining quality relationships between all parties and the importance of clear, concise, and effective means of communication.


• B. Eng., Construction Engineer: École de technologie supérieure (ÉTS), Montreal, QC, (2012)

• D.C.S., Civil Engineering Technology: Dawson College, Montreal, QC, (2008)

• Professional Engineer: Ordre des ingénieurs du Québec (OIQ)

• Professional Engineer: Professional Engineers Ontario (PEO)

• Professional Engineer: Engineers Nova Scotia (2023)

• Level I Thermography (FLIR – Infrared Training Center): Certification (2023)

• Working at Heights in Ontario and Quebec: Training

• Operator Certification for Aerial Lift and Elevated Work Platform in Quebec: Training

• WHMIS in Construction in Quebec: Training

• WHMIS 2015/ SIMDUT 2015 (SGH) in Ontario and Quebec: Training

• Genium 360 (formerly Réseau des ingénieurs du Québec): Member