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The 10 Best Window Replacement Companies in Portland (2026)
This ranking is built from Google review data and updated for 2026 using a Bayesian-style weighting that favors businesses with both high ratings and substantial review counts. We focused on firms categorized on Google as window installers, suppliers, and related services within the Portland area. In a city known for damp winters and a lot of older housing, window replacement choices often hinge on energy performance, durability, and local installer experience. Below you’ll find the ten top-scoring local options on Google, presented so you can compare ratings and review volume as a first step in picking someone for your project.
This ranking is computed from Google reviews (our method). Listings marked Partner are paid advertising spots: they sit alongside the ranking without changing its order.
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Town & Country Glass
Town & Country Glass tops our list because it holds a perfect 5.0 Google rating across 1,835 reviews, giving it exceptional weight in a review-driven ranking. It appears on Google as a Window installation service and is listed in NE Portland. That combination of a flawless average and very large review volume places it well ahead of competitors in our 2026 update.
The full ranking
Zen Windows Portland
A 5.0-rated Window installation service with 131 Google reviews, Zen Windows Portland is listed at an address in Hillsboro.
131 reviews
Clear Works
Showing a 5.0 average across 95 Google reviews, Clear Works is listed on Google as a Window installation service; no specific neighborhood is provided in the Google address data.
95 reviews
Window Supply Company – Window Replacement Portland Oregon
This entry has a 5.0 rating from 34 Google reviews and appears as a Window supplier with a NW Portland address on Lovejoy Street.
34 reviews
A-1 Glass and Mirror
A-1 Glass and Mirror carries a 4.9 rating based on 860 reviews and is categorized as a Window installation service; the Google address places it in Beaverton.
860 reviews
KVN Construction
With a 4.9 average across 390 Google reviews, KVN Construction is listed as a Window installation service at a SE Portland address on 85th Avenue.
390 reviews
Classic Sash & Door Company
Classic Sash & Door Company holds a 4.9 rating from 161 Google reviews and is listed as a Window installation service with an SE Portland address on 6th Avenue.
161 reviews
Tualatin Valley Glass
Tualatin Valley Glass appears as a Window installation service with a 4.9 Google rating based on 130 reviews and an NE Portland address on Holladay Street.
130 reviews
Bridgetown Window & Door, Inc.
Bridgetown Window & Door, Inc. is rated 4.9 from 107 reviews on Google and is categorized as a Window installation service with an NE Portland address on Glenn Widing Drive.
107 reviews
East Portland Sash
East Portland Sash shows a 5.0 average across 18 Google reviews, listed as a Window installation service at a SE Portland address on Johnson Creek Boulevard.
18 reviews
Frequently asked questions
How should I choose a window replacement company in Portland?
Start by checking online ratings and the number of reviews to see consistency, then confirm a company’s licensing, insurance, and warranty offerings. Ask for references, examples of completed work, and how they handle permits or inspections for local building codes.
What factors affect the cost of replacing windows?
Cost depends on window size, frame and glass materials, energy-performance features, the number of units, and whether structural work is required. Installation complexity and local permit requirements can also add to the final price.
What should I inspect before a contractor begins work?
Verify the written contract includes the scope of work, materials, timeline, total cost, and warranty details. Confirm that the contractor will obtain any necessary permits and that they carry liability insurance and worker coverage.
How was this ranking created and why do review counts matter?
This list is based on Google review averages and review counts, using a weighting approach that balances score and volume so businesses with both high ratings and many reviews rise to the top. High review volume reduces the chance that a rating is skewed by only a few opinions.