A commitment to high performance building solutions

Fortis is a building science firm that develops effective solutions

to complex building problems.

Building exterior in Toronto, Canada

A passion for finding answers

Our expert staff of consultants caters to a diverse clientele, ranging from owners, architects, contractors, developers, and attorneys.

Renovation and Restoration

Evaluation of existing buildings to develop repair scopes. Focused problem solving. Engineered solutions.

New Construction

Get it right the first time. Design assistance and 3rd-party design review help ensure your project is a success, and avoid problems.

Forensics

Expert opinions backed with decades of experience.

Simulation

Energy modeling and hygrothermal simulation backed with real-world experience to help predict building performance before its built.

On-Site Observations

Verify that the construction of building enclosure system meets the project’s requirements.

Testing

Mock ups, in-situ, testing. Spray testing. Whole building air leakage. Custom testing to understand unique problems.

Expertise

Our consultants use a holistic building expertise to solve the most challenging problems within the built environment.

Building Systems Expertise

  • Structures
  • Facades
  • Building Enclosures
  • Fenestration
Windows of a building in Nuremberg, Germany

Fortis Newsletter

  • A world of thought-provoking articles.
  • Case studies that celebrate engineering.
  • Exclusive access to design insights.

“Fortis was founded to provide great solutions.”

Gordon Shepperd

President, Fortis Building Science


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