Who We Are

About You

You are informed and have energy efficiency goals in mind for your home or building. You want a company that is pushing industry standards forward with future generations in mind.
You want a team of people who are consistent and follow through on their commitments to achieve your design and performance goals. Disregarding conventional standards, your search has led you here and we are excited to learn about your project!

About Us

Glo Windows and Doors is a Missoula, Montana, based team of professionals dedicated to improving the performance of building envelopes through the high-performance window and door design. Our staff has a combined total of over 100 years in the green building field. Our foundation ranges from high-performance building science and envelope construction, energy modeling, super insulation, air sealing, building science, and passive house design. Supplying energy-efficient passive house windows and doors became a natural transition in providing a high-quality product for you and your building envelope.