How Much Does Window Replacement Cost in Seattle? [2025 Data]
Window replacement in Seattle costs an average of $14,453, with a cost range of $5,735 to $23,555. A window replacement professional will assess your home and give you a tailored quote for your project.
Seattle window replacement costs an average of $14,453.
The exact cost of the project depends on the number, type, and material of the windows being installed.
A professional window replacement company can give you a quote for your Seattle window project.
Replacement windows can bring new life to any Seattle home. Window replacement typically costs between $5,735 and $23,555 in Seattle, with homeowners paying an average of $14,453. Your exact cost will depend on the project scope and the type of windows you choose. Learn more about the factors that can affect your Seattle window replacement project.
Window Replacement Cost Factors
The cost to replace windows in Seattle depends on several factors. Here’s what could affect your total project cost.
Number of Windows
The median home size in Seattle is 1,890 square feet and may have between 15 and 20 windows. You can expect to pay between $350 and $2,750 per window, depending on the style and material chosen. The exact size of your home and the number of windows you’re replacing will have the most significant impact on your total project cost. Here are some example costs for window replacement projects of varying sizes.
| Number of Windows | Average Project Cost ($750 per Window) |
|---|---|
| 10 | $7,500 |
| 15 | $11,250 |
| 20 | $15,000 |
| 25 | $18,750 |
| 30 | $22,500 |
| 35 | $26,250 |
Frame Material
The four most common window frame materials in Seattle are vinyl, wood, fiberglass, and aluminum. Your total project cost hinges on your chosen frame material. Seattle is known for its rainy climate, so the best frame materials are those that are moisture-resistant and easy to maintain.
Vinyl is one of the cheapest options and is resistant to rot and warping caused by moisture damage.
Wood is more expensive and requires regular maintenance to help protect it from moisture and pest damage.
Fiberglass is the most expensive option, but it is highly durable and long-lasting.
Aluminum is lightweight and relatively affordable, but it can rust when exposed to moisture.
Here’s what you can expect to pay for each.
| Frame Material | Average Cost per Window |
|---|---|
| Vinyl | $100–$900 |
| Wood | $150–$1,300 |
| Fiberglass | $500–$1,500 |
| Aluminum | $75–$400 |
Window Style
Seattle has a diverse range of architectural designs, from Craftsman bungalows and Mid-Century Modern homes to the famous Seattle Box style homes. When replacing your windows, you need to ensure that the window style complements your home’s unique design. Single-hung or double-hung windows work well with many types of architectural designs, or your house might feature large, open bay windows or stylish arched windows. Below are the average prices for these different window styles.
| Window Style | Average Cost per Window |
|---|---|
| Single-hung | $100–$400 |
| Double-hung | $150–$650 |
| Bay | $900–$7,100 |
| Arched | $350–$1,000 |
| Picture | $65–$700 |
| Casement | $150–$1,000 |
| Custom | $1,000 and up |
Glass Type
The type of glass you choose can affect more than just the cost of your Seattle window replacement project. Single-pane glass is the most affordable option, but it doesn’t provide much insulation, so your home will feel colder during the chilly winter months. Double-pane, triple-pane, and low-emissivity (low-E) windows are much better insulators against the varying Seattle weather, though they come at a higher cost. However, efficient windows may qualify for a rebate of up to $200 per window or a total of $2,000 from Puget Sound Energy, which can decrease your overall project cost. Here are the typical costs for each type of window glass.
| Glass Type | Average Cost per Window |
|---|---|
| Single-pane | $200–$500 |
| Double-pane | $500–$2,000 |
| Triple-pane | $1,000–$4,000 |
| Low-E | $300–$1,100 |
Window Replacement Pro Costs
An experienced DIYer can learn how to install replacement windows to save on labor costs, but a small mistake can cost you big in the long run. That’s why it’s recommended to hire a pro for this project. Here’s how the cost of hiring a pro breaks down.
Labor
The cost of living in Seattle is significantly higher than the national average: 46% higher, to be precise. The cost of labor for window replacement in Seattle will therefore also be higher than the national average of $100 to $300 per window. The demand for window replacement will also impact labor costs; you can expect to pay more during peak window replacement seasons, which typically occur in the spring and fall, and may pay less if you book your project during the off-season.
Permits
Neither the City of Seattle nor King County requires a permit for window replacement, as long as you are replacing like with like and using existing openings. However, if you’re changing window styles or creating openings for new windows, you’ll need a permit. If you’re hiring a Seattle window contractor to complete the window replacement, they will take care of any required permitting for you.
Taxes
The total sales tax rate in Seattle is 10.35%, made up of a 6.5% state tax and a 3.85% city tax. If you hire a pro for your project, taxes will be included in your quote. However, if you plan to buy new windows yourself, you’ll need to factor in sales tax into the base cost of the windows and other materials.
Licensing and Certification Requirements
The state of Washington requires all construction contractors to register with the state’s Department of Labor and Industries. Before hiring a window replacement professional near you, ensure they meet the proper licensing and insurance requirements.
Tipping
When you’re paying thousands of dollars for a home project, you may not have any extra cash to spare for a tip. Luckily, window contractors don’t expect tips; they account for their time in their labor quotes to ensure all employees are adequately compensated for their work. However, if your window replacement contractor did an outstanding job, you’re free to tip them as you see fit. Often, a positive review for a job well done can be more valuable to a contractor than a monetary tip.
Does Window Replacement Increase Home Value?
Data from the Journal of Light Construction’s 2024 Cost vs. Value report shows that vinyl window replacement has an 81.6% return on investment (ROI) in Seattle, while wood window replacement has a 69.8% ROI. Therefore, if your total project cost is $15,000, you can expect to recoup between $10,470 and $12,240 when you sell your home.
The exact increase of your home’s value depends on the types of windows you install. Vinyl windows with double-pane or low-E glass are likely to have a higher ROI than wood windows with single-pane glass. To ensure the highest possible ROI for your project, consider the type of windows other homes in your neighborhood have and opt for a similar style for your replacement windows.
How Angi Gets Its Cost Data
Home is the most important place on earth, which is why Angi has helped more than 150 million homeowners transform their houses into homes they adore. To help homeowners with their next project, Angi provides readers with the most accurate cost data and upholds strict editorial standards. We extensively research project costs to develop the pricing data you see, so you can make the best decisions for you and your home. We rely on reputable sources, including the U.S. Bureau of Labor Statistics, academic journals, market studies, and interviews with industry experts—all to ensure our prices reflect real-world projects.
Want to help us improve our cost data? Send us a recent project quote to [email protected]. Quotes and personal information will not be shared publicly.
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