Glo European Windows is a team of professionals dedicated to improving the performance of building envelopes through high-performance windows and doors. A division of Energetechs, our staff has a combined total of over 100 years in the green building field. Our foundation ranges from general construction, super insulation and air sealing of high performance buildings, passive house design, building science, and energy modeling. With this in mind, energy efficient windows and doors became a natural transition in supplying a quality product for you and your building envelope. Our windows and doors were created with you in mind and built to perform.