Lomax Window & Door Co.

Lomax Window & Door Co. is a family-owned windows and doors company serving Northern Colorado. Since 2013, Donovan & Dawn Isaacs have led our team of dedicated professionals who specialize in window and door replacement. Donovan, known as the “window nerd,” has decades of experience and is recognized by the Historical Society in Denver for his work at the Governor’s Mansion. We prioritize integrity and honesty, ensuring every project reflects our commitment to excellence. From wood to aluminum and vinyl, we offer a vast selection of high-quality doors and windows from trusted brands like Sierra Pacific, Andersen Windows & Doors, and ProVia. Choose us for expert professional window installation and reliable door replacement.