Top-Rated Window Replacement Companies in Rancho Santa Margarita, CA
We don't have license data for window and glazing businesses in Rancho Santa Margarita, 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
3BIECC climate zone · ENERGY STAR South-Central zone
Climate and energy performance in Rancho Santa Margarita
Weather at that level is one more reason the flashing and sill pan under a Rancho Santa Margarita window matter as much as the glass sitting in it.
So ask any Rancho Santa Margarita 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 9.4 mi away.
Google's top window installers serving Rancho Santa Margarita, CA
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 | Mancino Door & Window, Inc. | 112 | Window installation service | Laguna Hills 92653 | Google reviews | |
| 2 | Window Jazz | 26 | Window installation service | Laguna Hills 92653 | Google reviews | |
| 3 | Ameriside | 69 | Window installation service | Lake Forest 92630 | Google reviews | |
| 4 | Newman Windows and Doors - Mission Viejo | 57 | Window installation service | Mission Viejo 92691 | Google reviews | |
| 5 | Budget Windows | 16 | Window supplier | Mission Viejo 92692 | Google reviews | |
| 6 | Saddleback Window Replacements, Inc. | 12 | Window installation service | Lake Forest 92630 | Google reviews | |
| 7 | Shower Doors by South Coast Glass | 39 | Window installation service | Laguna Niguel 92677 | Google reviews | |
| 8 | Mission Viejo Glass | 54 | Window installation service | Laguna Niguel 92677 | Google reviews | |
| 9 | Rancho Santa Margarita Glass | 10 | Window installation service | Rancho Santa Margarita 92688 | Google reviews | |
| 10 | Eisenbart & Sons Windows & Doors | 34 | Window installation service | Mission Viejo 92691 | 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?