Window Replacement Contractors in West Hartford, CT
West Hartford has 5 window replacement contractors on active state license records. The oldest of them has held a window or glazing license since 2004, and the median listing has carried one for 19 years.
Licenses checked · Connecticut Department of Consumer Protection
5AIECC climate zone · ENERGY STAR Northern zone
What West Hartford's climate means for your window spec
Weather at that level is one more reason the flashing and sill pan under a West Hartford window matter as much as the glass sitting in it.
So ask any West Hartford contractor how they handle both, not just which brand they carry.
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 5.8 mi away.
19median years licensed
The license record behind these listings
The median window license active in West Hartford has been on the books for 19 years.
A small slice, 0 of them, sit inside a 90-day window for renewal as of our last check, which is ordinary license-cycle timing rather than a mark against the business.
Match the number on any West Hartford listing here against Connecticut's own lookup before you pick up the phone.
Data: Connecticut Department of Consumer Protection license records, checked 2026-09-30.
5 window replacement contractors based in West Hartford
Listed A to Z by business name. No listed business paid for placement or position.
| Business | Category | License class | License no. | Status | Effective | Expires | ZIP | Official record |
|---|---|---|---|---|---|---|---|---|
| Action Windows & Siding LLC | Window and glass contractor | Home Improvement Contractor | 616966 | Active | Jun 12, 2007 | Mar 31, 2027 | 06110 | Verify license |
| Highland Window Company LLC (The) | Window and glass contractor | Home Improvement Contractor | 601551 | Active | Aug 16, 2004 | Mar 31, 2027 | 06107 | Verify license |
| Japow Windows LLC | Window and glass contractor | Home Improvement Contractor | 700909 | Active | Feb 20, 2025 | Mar 31, 2027 | 06107 | Verify license |
| PK Windows LLC | Window and glass contractor | Home Improvement Contractor | 612970 | Active | Sep 21, 2006 | Mar 31, 2027 | 06107 | Verify license |
| West Hartford Windows LLC | Window and glass contractor | Home Improvement Contractor | 638931 | Active | Feb 20, 2014 | Mar 31, 2027 | 06107 | Verify license |
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?