Top-Rated Window Replacement Companies in Darby, PA
Darby hasn't cleared the bar this site needs from a state license file to earn its own license page. So we searched Google Maps for window replacement company listings in Darby, PA and ranked the ones that qualified by rating and review count. 8 made the cut here.
Google Maps ratings checked · How we rank
4AIECC climate zone · ENERGY STAR North-Central zone
What Darby's climate means for your window spec
Delaware County sees about 44.1 inches of precipitation and 23.1 inches of snow in a normal year.
Weather at that level is one more reason the flashing and sill pan under a Darby window matter as much as the glass sitting in it.
So ask any Darby 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 4 mi away.
8 top-rated window replacement companies in and near Darby
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 | Thermal Quality Window & Door Company | 552 | Window installation service | Broomall 19008 | Google reviews | |
| 2 | Ardmor Windows & Doors | 62 | Window installation service | Philadelphia 19143 | Google reviews | |
| 3 | McHUGH ROOFING • SIDING | 233 | Window installation service | Secane 19018 | Google reviews | |
| 4 | Window World of Philadelphia | 19 | Window installation service | Upper Darby Township 19082 | Google reviews | |
| 5 | A to Z Glass and Mirror | 97 | Window installation service | Glenolden 19036 | Google reviews | |
| 6 | M & J Roofing Supply | 46 | Window supplier | Folcroft 19032 | Google reviews | |
| 7 | Everman Glass Service | 3 | Window installation service | Lansdowne 19050 | Google reviews | |
| 8 | Southwest Vinyl Windows | 127 | Window supplier | Lansdowne 19050 | 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?