Passive House Consulting
- Energy modeling
- Envelope and detail review
- Constructability input
- Phius certification path support
- Blower door testing

A CPHC on Your Project Team
We work with architects, designers, builders, and owners who want Passive House expertise on a project without a Certified Passive House Consultant on staff.
Zach Shelly, our founder, is a Phius Certified Consultant (CPHC®). He can step in at whatever stage makes sense, and he brings something a lot of consultants can't: he builds these assemblies, so the advice holds up in the field.
What We Can Do
- Energy modeling to test design decisions before they're locked in
- Envelope and detail review for air barrier continuity, thermal bridges, and moisture risk
- Constructability input from a team that builds these assemblies
- Phius certification path support. Phius certifies; we model, document, and submit
- Blower door testing at mid-construction and final
Why Early Matters
The decisions that set a home's performance, from building shape to window specs to the wall and roof assemblies, get made in design. Modeling a finished design usually means expensive changes or a missed target. Bringing us in during schematic design is where this pays off most.
Homeowners Working With an Architect
If you've already hired an architect or designer and want your home to perform at a higher level, we can work alongside them. You keep the design team you chose, and you get Passive House expertise and a builder's eye on the details.
If you're working on a high-performance project in Western NC and want a CPHC on your team, get in touch and we'll set up a project review call.
Let's Talk About Your Project
Everything You Need to Know—Before You Build
FormWise provides end-to-end solutions including architectural design, construction planning, interior design, consulting, and sustainable building. Each service can be customized to fit your project’s needs and scale.
Yes — our team designs and builds everything from modern homes to retail spaces and office developments. We tailor our process to the unique requirements of each type of project.
Project timelines vary depending on complexity and scope. Smaller residential projects usually take between 4–12 weeks for design, while full construction projects can range from 3–8 months.
Absolutely. We believe collaboration leads to the best results. Clients are involved at every major stage — from concept review to material selection and final approval.
