✓ Verified Google reviews·✓ Reviewed regularly·✓ Updated May 29, 2026
Written by Mark Reid,
Home Services Editor ·Verified May 29, 2026
Seattle's housing stock throws a lot at windows. Craftsman bungalows in Ballard and Columbia City often have original wood-frame single-pane windows that leak heat badly once the marine air sets in, while newer construction in South Lake Union and Capitol Hill tends to feature large fixed-glass panels and sliding assemblies that need exact-fit replacements. The city's combination of wet winters, salt air near Puget Sound, and occasional freezing temperatures east of the Cascades foothills means condensation, rot, and seal failure are genuinely common complaints. Double-pane and triple-pane vinyl or fiberglass units with low-E coatings are the standard recommendation for this climate, and most Seattle contractors will quote $400 to $900 per window installed for mid-range double-pane units, with custom sizes or bay windows running higher. Energy efficiency credits through utility programs can offset costs, so it's worth asking any contractor about current rebates before you sign.
Every business listed here was drawn from third-party public business listings and ranked by a combination of public review rating and review count, with a small lift applied to businesses that show a working website and a reachable phone number. We read each business's homepage to confirm window replacement is what they primarily offer, not a sideline to another trade. That check is what keeps general handymen or unrelated contractors off this page. Listings flagged as permanently closed are removed automatically. Where you see a Trust Verified badge next to a business name, that company has gone further and passed our full independent verification, covering trade qualifications and accreditations, public liability insurance, trading history, customer review history, and registered company information. See our How We Verify page for the complete list of what that process covers. Businesses without that badge have not been independently verified by us.
Before you book anyone, get at least three written quotes that break out labor and materials separately, because window pricing in Seattle varies a lot by brand, glass package, and installer. Ask whether the quote includes disposal of old frames, whether a permit is required for your specific job (the Seattle Department of Construction and Inspections requires permits for some structural openings), and confirm the installer's warranty covers both the product and the workmanship independently. Check that any contractor you hire carries valid Washington State contractor registration and general liability insurance, and ask to see the certificate rather than taking their word for it. If a quote looks unusually low, ask what glass unit is being installed and look up the manufacturer's specs yourself.
How We Select & Rate The Best Window Replacement in Seattle, WA
Rankings on this page are driven by public review rating and review count pulled from third-party business listings, with a small lift for businesses that have a working website and phone number. We check each business's homepage to confirm window replacement is what they primarily offer, which keeps unrelated trades off the page. Permanently-closed listings are removed automatically. Businesses marked Trust Verified have additionally passed our full verification process covering trade qualifications, accreditations, public liability insurance, trading history, customer review history, and registered company information. See our How We Verify page for the full list. All other businesses on this page have not been independently verified by us, and inclusion is not an endorsement. Always do your own checks before hiring.
Positions 1–5 (Recommended and Featured) may be paid placements. Every other listing is ranked on rating and review count from third-party business listings. How we rank & verify →
Quick Comparison — Window Replacement in Seattle, WA
Einar Johanson Window & Door specializes in professional window replacement services for Seattle homeowners and businesses. With an exceptional 5-star rating from 284 verified customer reviews, the company has built a strong reputation for quality installations and reliable service throughout the greater Seattle area. Located on N 128th Street, they provide comprehensive window replacement solutions to help improve energy efficiency and enhance property value.
Lake Washington Windows and Doors specializes in window replacement services for Seattle area homeowners, operating from their 98105 location on 9th Ave NE. The company has earned a 4.9/5 star rating based on 276 verified customer reviews, reflecting their commitment to quality installation and customer service throughout the greater Seattle region.
Windorco Supply Inc. specializes in window replacement services for Seattle area homeowners and businesses from their location on NW 92nd Street. The company has earned a perfect 5-star rating from 174 verified customer reviews, reflecting their commitment to quality installations and customer satisfaction. They serve the 98117 area and surrounding neighborhoods with professional window replacement solutions.
Apex Energy Solutions provides professional window replacement services for Seattle homeowners, operating from their Wilson Ave S location in the 98118 area. The company has earned a 4.7-star rating from 193 verified customer reviews, reflecting their commitment to quality installation and customer satisfaction. Their experienced team helps residents improve home energy efficiency and comfort through expert window replacement solutions.
Emerald City Energy Windows & Doors provides professional window replacement services for Seattle area homeowners from their Greenwood Ave N location. The company maintains a strong reputation with a 4.8/5 star rating based on 41 verified customer reviews. They serve the 98103 area and surrounding neighborhoods, focusing on energy-efficient window installations and replacements.
Reglaze Windows & Installation provides professional window replacement services throughout Seattle, operating from their NW Market Street location in the 98107 area. The company has earned a 4.8/5 star rating from 21 verified customer reviews, reflecting their consistent quality in residential and commercial window installation projects. Their experienced team handles complete window replacements to help improve energy efficiency and enhance property value for Seattle homeowners and businesses.
Fitch Window and Door Installation provides professional window replacement services to Seattle residents from their Queen Anne location. The company maintains a perfect 5-star rating based on 5 verified customer reviews, reflecting their commitment to quality workmanship. They serve the greater Seattle area, helping homeowners upgrade their windows for improved energy efficiency and curb appeal.
Sargent Construction provides window replacement services for residential and commercial properties throughout Seattle and surrounding areas. Based on 7th Ave S, the company has earned a 4.2 out of 5 star rating from 10 verified customer reviews. Their experienced team handles complete window installations to improve energy efficiency and enhance property value.
Transparency notice: Recommended (#1) and Featured (positions 2-5) listings may be paid placements, so a business's fee affects whether and where it appears in those positions. All other listings are ranked by a combined score drawn from ratings and review counts published on third-party business listings, plus basic completeness signals such as a working website and phone. A Trust Verified badge means we have independently checked that business's documents; businesses without it have not been independently verified by us. How we verify →
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How much does a window replacement cost in Seattle?
Window replacement in Seattle typically runs $400-800 per window for standard vinyl double-hung units, while premium wood or fiberglass windows can cost $800-1,500 each. Complex installations on older homes with structural modifications can push costs higher. Labor usually accounts for 30-40% of the total project cost. Getting quotes from two or three contractors helps you understand the going rate for your specific situation.
Do I need permits for window replacement in Seattle?
Most like-for-like window replacements don't require permits in Seattle, but you'll need permits if you're changing window sizes, adding new openings, or doing structural work. Your contractor should know which projects trigger permit requirements and handle the paperwork. Don't skip this step - unpermitted work can cause problems when you sell your home.
What window materials work well in Seattle's climate?
Vinyl and fiberglass windows perform well in Seattle's wet climate since they don't rot or require regular painting. Wood windows look great on historic homes but need more maintenance. Whatever material you choose, make sure it has proper weatherstripping and drainage features to handle the Pacific Northwest's rain and humidity.
How long does a typical window replacement project take?
Most residential window replacement projects take 1-3 days depending on the number of windows and complexity of the installation. Simple replacements in newer homes move faster, while older homes with custom trim work or structural issues take longer. Your contractor should give you a realistic timeline upfront and explain any factors that might cause delays.
Should I replace all my windows at once or do it gradually?
Replacing all windows at once usually costs less per window due to bulk pricing and single mobilization costs. You'll also get consistent appearance and performance across your home. However, phased replacement works if budget is tight - just prioritize windows that are failing, face weather exposure, or are in frequently used rooms first.
How do I verify a window replacement contractor is legitimate?
Check their Washington state contractor license on the Department of Labor & Industries website. Verify they carry general liability and workers' compensation insurance by asking for certificates. Look up their Google reviews and Better Business Bureau rating. Get references from recent local projects and don't be afraid to drive by and see their work firsthand.
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