Building Envelope

Total Building Envelope Services

Doors and Windows

GMP supplies vinyl, aluminum and fibreglass windows and doors which meet NAFS ratings for the highest buildings in Calgary and local area. All solutions provide energy savings through glass technology options such as triple-pane low E. GMP window and door installation methods surpass industry standards, in line with engineering guidelines for building envelope design.


GMP’s siding formats include maintenance-free, eye-catching vinyl; modern metal panel that is fire and weather resistant for decades; and colourful and decorative fire and weather resistant fiber cement.

Envelope Restoration

If rot, mold, or mildew is found after a building envelope inspection, GMP’s techs will use building envelope and structural engineering specifications to assess overall damage and offer practical solutions.

Concrete Restoration

If existing concrete structures have deteriorated, GMP’s techs will assess damage using concrete engineering and building envelope specifications to ensure the safety of tenants.