Google's Top-Rated Window Pros Near Alum Rock, CA
We don't have license data for window and glazing businesses in Alum Rock, CA 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
3CIECC climate zone · ENERGY STAR South-Central zone
What Alum Rock's climate means for your window spec
IECC rates Alum Rock's climate zone as 3C, the starting point for any code-minimum window performance here.
ENERGY STAR places Santa Clara County in its South-Central zone for window certification.
Normal temperatures run 51°F in January and 71°F in July, so the glass package worth paying for in Alum Rock 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 4.6 mi away.
10 top-rated window replacement companies in and near Alum Rock
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 | Roxy Glass - San Jose | 19 | Window installation service | San Jose 95113 | Google reviews | |
| 2 | Silicon Valley Top Level Construction, Inc. | 19 | Window installation service | San Jose 95112 | Google reviews | |
| 3 | Sivan Windows and Doors - San Jose | 53 | Window supplier | San Jose 95133 | Google reviews | |
| 4 | UnitedPorte | 124 | Window installation service | San Jose 95112 | Google reviews | |
| 5 | Alum Rock Hardware, Windows & Doors | 34 | Window supplier | San Jose 95116 | Google reviews | |
| 6 | Accent Window Systems, Inc. | 12 | Window installation service | San Jose 95111 | Google reviews | |
| 7 | TT Glass & Windows - San Jose | 37 | Window installation service | San Jose 95112 | Google reviews | |
| 8 | My Window & Door Solutions LLC | 46 | Window installation service | San Jose 95112 | Google reviews | |
| 9 | Montez Glass Co | 13 | Window installation service | San Jose 95110 | Google reviews | |
| 10 | A1 Bay Area Glass | 37 | Window installation service | San Jose 95116 | 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?