LDR Engineering Group (LDR) provides comprehensive building science (or envelope, enclosure) consulting engineering services on residential, commercial, heritage, and institutional building projects.  Our clients include architects, developers, property managers, and professional facility managers who require high quality service and cost effective solutions on existing buildings and new construction projects.

LDR is a partnership formed through the merger of two established building science consulting engineering firms, Bamtec Engineering incorporated in 2005 and JSD Engineering incorporated in 2009.  Our merger has brought together a team of engineering professionals with decades of combined experience in the construction and building science industry, who pride themselves on providing high quality services to clients with the utmost integrity, reliability, and efficiency.

LDR Engineering Group

Sean Liaw

This department focuses on the principles and applications of building science to improve the performance, sustainability, and comfort of buildings.

Building Science

This department specializes in the design and evaluation of building enclosures to ensure energy efficiency, durability, and performance.

Building Envelope

This department focuses on providing expertise in building science and technical direction to support client needs.

LDR Engineering Group

Org chart

Teams

Building Science

Building Envelope

Building Science Services

Offices

LDR Engineering Group

Org chart

Teams

Building Science

Building Envelope

Building Science Services

Offices

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