8 Best Window Replacement in Seattle for 2026

🪟 8 businesses · 📍 Seattle, WA
✓ Verified Google reviews · ✓ Reviewed regularly · ✓ Updated May 18, 2026
Mark Reid
Written by Mark Reid, Home Services Editor · Verified May 18, 2026
Seattle's housing stock includes everything from century-old craftsman homes in Ballard to modern condos in South Lake Union, each presenting unique window replacement challenges. The city's wet climate and seismic activity requirements mean contractors need expertise in both moisture management and earthquake-rated installations. Most established companies here work year-round, though scheduling often gets tighter during the drier summer months.

The businesses featured here were selected through verification of their Google ratings, review volume, and trading history. Each maintains active contractor licenses and carries proper insurance coverage. We checked their recent customer feedback patterns and confirmed they're currently accepting new projects in the Seattle area.

Before contacting any window replacement contractor, measure your existing windows and note their condition. Ask for detailed quotes that break down material and labor costs separately. Don't just compare total prices - look at the window brands being offered and warranty terms. Getting quotes from two or three different contractors helps you spot any outliers and gives you negotiating power.
How We Select & Rate The Best Window Replacement in Seattle, WA

These window replacement contractors were selected through analysis of Google ratings, review volume consistency, and customer feedback patterns. We verified active contractor licenses, insurance coverage, and current trading status. The selection process also considered specialization in different window types and installation methods common to Seattle homes. Inclusion here doesn't constitute an endorsement, and readers should conduct their own verification before hiring any contractor.

Quick Comparison — Window Replacement in Seattle, WA

# Business Rating Reviews Phone
1 Einar Johanson Window & Door Recommended ⭐ 5.0 284 (206) 362-4031 View →
2 Lake Washington Windows and Doors Featured ⭐ 4.9 276 (425) 272-9486 View →
3 Windorco Supply Inc. Featured ⭐ 5.0 174 (206) 784-9440 View →
4 Apex Energy Solutions Featured ⭐ 4.7 193 (888) 865-2739 View →
5 Emerald City Energy Windows & Doors Featured ⭐ 4.8 41 (206) 800-8061 View →
6 Reglaze Windows & Installation ⭐ 4.8 21 (206) 793-0999 View →
7 Fitch Window and Door Installation ⭐ 5.0 5 (206) 208-8955 View →
8 Sargent Construction ⭐ 4.2 10 (425) 652-1515 View →

Our Top Picks

6
Reglaze Windows & Installation
4.8 (21 reviews)
Seattle, WA (206) 793-0999 Website

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.

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7
Fitch Window and Door Installation
5.0 (5 reviews)
Seattle, WA (206) 208-8955 Website

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.

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8
Sargent Construction
4.2 (10 reviews)
Seattle, WA (425) 652-1515 Website

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.

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Transparency notice: Recommended (#1) and Featured (positions 2-5) listings may be paid placements. All other rankings are determined by a combined score drawn from Google ratings, review counts, and reputation signals gathered from multiple independent online sources. How we verify →

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Frequently Asked Questions

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.