Littleton, CO's Highest-Rated Window Installers on Google
We don't have license data for window and glazing businesses in Littleton, CO the way we do for some other cities on this site. This page leans on Google Maps instead: 10 businesses, ranked by rating weighted against how many people reviewed them. A strong Google rating still isn't the same thing as a license on file, so ask to see one before you sign anything.
Google Maps ratings checked · How we rank
5BIECC climate zone · ENERGY STAR Northern zone
What Littleton's climate means for your window spec
IECC rates Littleton's climate zone as 5B, the starting point for any code-minimum window performance here.
ENERGY STAR places Jefferson County in its Northern zone for window certification.
Normal temperatures run 33°F in January and 73°F in July, so the glass package worth paying for in Littleton isn't the same one that pencils out two zones over.
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 3.2 mi away.
10 top-rated window replacement companies in and near Littleton
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 | Colorado Windows and Restoration | 212 | Window installation service | Highlands Ranch 80129 | Google reviews | |
| 2 | Tried and True Glass | 151 | Window installation service | Englewood 80110 | Google reviews | |
| 3 | Paramount Siding & Windows | 690 | Window installation service | Littleton 80121 | Google reviews | |
| 4 | Five Seasons Windows and Doors | 287 | Window installation service | Englewood 80110 | Google reviews | |
| 5 | JDI Windows | 144 | Window installation service | Littleton 80120 | Google reviews | |
| 6 | Gravina's Window Center of Littleton | 490 | Window installation service | Littleton 80120 | Google reviews | |
| 7 | Window Doctor Of Colorado | 218 | Window installation service | Sheridan 80110 | Google reviews | |
| 8 | See The Light Windows | 14 | Window installation service | Littleton 80127 | Google reviews | |
| 9 | Pleasant View Windows & Doors, LLC | 13 | Window installation service | Littleton 80128 | Google reviews | |
| 10 | Colorado Window & Siding Inc | 57 | Window installation service | Centennial 80121 | 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?