John Parr

Certified Passive House Tradesperson, specialised in Building Envelope


Parr Custom Builders, Inc.

7092 Carter Trail
80301 Boulder
United States of America

Phone: +1 (303) 517-9394

Initial by Exam

Certificate valid from July 1, 2019
Certificate valid until July 1, 2024
The certificate only applies to this person.

Examined by Emu Systems at Arvada, CO, United States of America