Top-Rated Window Replacement Companies in Lake Oswego, OR
We don't have license data for window and glazing businesses in Lake Oswego, OR 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
4CIECC climate zone · ENERGY STAR Northern zone
What Lake Oswego's climate means for your window spec
Portland-Vancouver-Hillsboro, OR-WA piles up about 4,015 heating degree days in a normal year, against 543 on the cooling side of the ledger.
That's the load an ENERGY STAR-rated window in the Northern zone is built to handle.
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 6.1 mi away.
10 top-rated window replacement companies in and near Lake Oswego
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 | A-1 Glass and Mirror | 859 | Window installation service | Beaverton 97005 | Google reviews | |
| 2 | LADA Exteriors | 71 | Window installation service | Tualatin 97062 | Google reviews | |
| 3 | Lifetime Remodeling Systems | 152 | Window installation service | Not listed | Google reviews | |
| 4 | Renewal by Andersen of Portland | 2,742 | Window installation service | Portland 97224 | Google reviews | |
| 5 | Tualatin Valley Glass | 650 | Window installation service | Tigard 97223 | Google reviews | |
| 6 | Clear Choice Windows & Doors | 286 | Window installation service | Tigard 97224 | Google reviews | |
| 7 | Advanced Energy Services | 54 | Window installation service | Wilsonville 97070 | Google reviews | |
| 8 | Lifetime Windows & Doors | 216 | Window installation service | Portland 97267 | Google reviews | |
| 9 | Kemp's Windows Inc. | 79 | Window installation service | Portland 97267 | Google reviews | |
| 10 | Apex Energy Solutions - Window Replacement & Entry Doors - Portland | 302 | Window supplier | Lake Oswego 97035 | 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?