Loveland, CO's Highest-Rated Window Installers on Google
Loveland's 10 listings below come from Google Maps rather than a state license file. IECC climate zone 5B sets the energy bar for a Loveland window job no matter which kind of list a contractor's name comes from. Checked October 2026.
Google Maps ratings checked · How we rank
5BIECC climate zone · ENERGY STAR Northern zone
What Loveland's climate means for your window spec
Fort Collins-Loveland, CO piles up about 6,456 heating degree days in a normal year, against 530 on the cooling side of the ledger.
That's the load an ENERGY STAR-rated window in the Northern zone is built to handle.
Data: U.S. EPA / DOE, ENERGY STAR, ENERGY STAR Version 7.0 Climate Zones by County/ZIP (Windows, Doors, and Skylights) (V7.0); Pacific Northwest National Laboratory (DOE Building America), Guide to Determining Climate Zone by County: Building America and IECC 2021 Updates (PNNL-33270) (2021 IECC), from the nearest NOAA station 1.7 mi away.
10 top-rated window replacement companies in and near Loveland
Ranked by Google rating weighted against how many people left one, so a perfect score from a handful of reviewers never outranks a strong average built on hundreds. That ranking is not a license check; call the state directly and ask for the contractor's license or registration number.
| Rank | Business | Google rating | Reviews | Category | Area | Google Maps listing |
|---|---|---|---|---|---|---|
| 1 | One Clear Choice Garage Doors | 1,316 | Window installation service | Loveland 80538 | Google reviews | |
| 2 | Anchor Auto Glass & Tint | 536 | Window installation service | Loveland 80537 | Google reviews | |
| 3 | Integrated Auto Repair & Glass | 43 | Window installation service | Loveland 80538 | Google reviews | |
| 4 | Window Well Replacement LLC | 30 | Window installation service | Berthoud 80513 | Google reviews | |
| 5 | Fantastic Customs | 45 | Window installation service | Loveland 80538 | Google reviews | |
| 6 | Moffat Glass (formerly Loveland Glass) | 39 | Window installation service | Loveland 80537 | Google reviews | |
| 7 | Window & Siding Outlet | 121 | Window installation service | Loveland 80537 | Google reviews | |
| 8 | Colorado Window Experts | 23 | Window installation service | Loveland 80537 | Google reviews | |
| 9 | Window Depot USA of Northern Colorado | 23 | Window installation service | Loveland 80537 | Google reviews | |
| 10 | Champion Replacement Windows of Ft. Collins | 1,294 | Window installation service | Loveland 80538 | Google reviews |
Questions to ask before you sign
- How long have you held your state license, and can I see the number?
- Is this a full-frame replacement or an insert into my existing frame, and why that one?
- Who pulls the permit, and does this change trigger an egress check on a bedroom window?
- What flashing and sill pan will you use, and in what order do you install them?
- If my home was built before 1978, is your crew lead-safe certified for this job?
- What's the completion date in writing, and what happens if the schedule slips?