Graham Borgdorff

Certified Passive House Tradesperson

General Carpenter

Above Board Carpentry

1724 Tom Bolton Road
K0M2K0 Minden

Phone: +1 705-4552196

Initial by Exam

Certificate valid from Aug. 28, 2020
Certificate valid until Aug. 28, 2025
The certificate only applies to this person.

Examined by Peel Passive House Consulting at Barrie, Canada