We are CertiPHIers Cooperative:

 North American Passive House Professionals dedicated to high-quality, local, and affordable    Passive House certification.

We formed CertiPHIers Cooperative to support both the growing North American Passive House Industry and Certifiers providing certification.   

Our vision is a growing industry supported by local owner/member professionals in the true North American style of "producer cooperatives" and "worker co-ops." 


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CertiPHIers Cooprative is a PHI-accredited building Certifier.

We certify projects to all of  the international certifications offered by the Passivhaus Institute:

Certified Passive House

EnerPHIt Certified Retrofit

CertiPHIers Cooperative offers Consulting service and Educational Workshops on Passive House design and energy modeling with partner organizations. To check on upcoming workshops, sign up for our newsletter

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Tools For Everyone

PHPP - IP -    &  designPH - 

The tools you need available in the units you work in: Inch/Pound.

At breakthrough pricing - Permanently.

Our TFE initiative seeks to make the world's most-used Passive House energy modeling tools, books and software affordable for everyone and every project. 

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