Lomax Window & Door Co.

4.6(44 reviews on Google)

Siding Contractor listing in Fort Collins, CO

About Lomax Window & Door Co.

Lomax Window & Door Co. is a family owned company serving Northern Colorado since 2013, led by Donovan and Dawn Isaacs, a husband and wife team. It specializes in window and door replacement and installation, with brands such as Sierra Pacific, Andersen and ProVia plus Weather Shield doors, and it also lists siding and decks. Window restoration is part of the mix, along with entry, patio and side doors. The company states it is fully licensed and insured with a 100% satisfaction guarantee. Donovan has decades of experience and was recognized by the Historical Society in Denver for work at the Governor's Mansion. Free consultations are offered. Rated 4.6 from 44 Google reviews, 38 of them five stars and 3 one star.

What reviewers mention: pricing (11), patio door (4), estimate (3), problem solving (3), slider doors (2), smooth process (2), promptness (2), cleanliness (2), general door installation (2), wood (2)

Services and details

  • Siding installation

    Yes

  • Also does windows

    Yes

  • Written warranty

    Yes

  • Licensed and insured

    Yes

No information yet on siding repair, vinyl siding, fiber cement, engineered wood, stone veneer, hail and storm damage, also does roofing, gutters, financing, free estimates. The website did not say; call and ask.

Contact

Listing compiled from public sources on 2026-11-10. Report a correction or request removal. Back to siding contractors in Fort Collins.