20 Best Window Companies in SeaTac, WA (2024 Reviews)

When it’s time to upgrade your windows, our reviews of the best window installation companies can help you find the provider for you.

We analyzed all the top-rated window companies in SeaTac and selected the best 20 based on:

  • Customer reviews
  • Window installation expertise
  • Popularity with home-owners like you
EcoWatch Local Advisors

By EcoWatch Local Advisors

Updated April 21, 2024

Why you can trust EcoWatch

Our panel of energy experts work tirelessly to create unbiased reviews and informative content to help homeowners make educated decisions. No other windows site has covered energy efficiency and sustainability as long as EcoWatch, which means we're going to help you find windows replacements that will save on your energy bill and put more money back in your wallet.

The EcoWatch Reviews team is all about finding solutions for eco-conscious homeowners in SeaTac. When it’s the middle of winter, your old and drafty windows could be making your home more difficult to heat and more uncomfortable for you.

Installing efficient windows on your home can help you save money every month on your energy bills — and you can help the environment, too.

We’ve put together this guide on the best installation companies to help you in your research, so you can not only take advantage of brand-new windows, but also save money on your electricity bills.

Best Availability

Renewal by Andersen

★★★★★
4.5
  • Great industry reputation
  • Member of US Green Building Council
  • Manufactures products in-house
Buy One Window, Get One 40% OFF
Get Estimate

Best Energy-Efficient Features

Champion

★★★★★
4.5
  • Many years of experience
  • Low prices relative to competitors
  • Limetime warranty
Buy 2 Windows, Get 2 Free
Get Estimate

Power Home

★★★★★
4.5
  • Uses eco-friendly materials
  • Well-trained, certified installers
  • Lifetime or lengthy warranty
Next-Day Appointments Available
Get Estimate

Best Window Installation & Replacement Companies in SeaTac

The EcoWatch Reviews team researched several window installation companies across SeaTac to narrow our list down to the top ones. We assessed the installers on energy-efficient offerings, coverage area, customer service, local experience, price and more.

Window World logo
FAST QUOTE
as little as 30 seconds
Best Affordability

Window World

★★★★★
BBB Rating: A+
Locations: Nationwide
Founded: 1995
Pros:
  • Pros icon EnergyStar Partner
  • Pros icon Large serice area
  • Pros icon Low prices relative to competitors
  • Pros icon Great industry reputation
  • Pros icon Lifetime warranty
Cons:
  • Pros icon Quality of service will depend on your area

Window World is the largest window replacement company in the country, known for its vinyl windows and affordability. Window World has around 27 years of experience in the window installation sector.

You may want to consider picking Window World if you're looking for a installer that is certified by the Environmental Protection Agency (EPA) and Energy Star and supports charities like St. Jude Children’s Research Hospital.

Energy Efficiency of Window World Windows

Window World’s commitment to sustainability shows in its energy-efficient window offerings. Its high-performance Low-E (low-emissivity) coatings and argon gas insulation offer exceptional efficiency and performance for any home.

How much does Window World cost in SeaTac?

While pricing is not available on Window World’s website, it's known for offering some of the most affordable window installations around. If you’d like more accurate information, you can request a quote on the company’s website.

Milgard Windows & Doors logo
FAST QUOTE
as little as 30 seconds
Excellent Reputation

Milgard Windows & Doors

★★★★★
BBB Rating: A
Locations: West Coast
Founded: 1962
Pros:
  • Pros icon EnergyStar Partner
  • Pros icon Wide network of installers
  • Pros icon Lifetime warranty available
Cons:
  • Pros icon Entails hiring third-party contractors
  • Pros icon Limited additional services

Milgard Windows & Doors is a family-owned and -operated window replacement company, which primarily serves the West Coast. Milgard has around 60 years of experience in the window installation sector.

You may want to consider picking Milgard if you're looking for a installer that offers competitive pricing, a comprehensive warranty and installers that all have a minimum of 15 years of window installation experience.

Energy Efficiency of Milgard Windows & Doors Windows

Milgard Windows & Doors’s commitment to sustainability shows in its energy-efficient window offerings. The company manufactures its own products, which gives it the freedom to make custom windows based on the climate. The company designs its own vinyl compounds and profiles to ensure a heat-stable product that performs as advertised.

How much does Milgard Windows & Doors cost in SeaTac?

While pricing is not available on Milgard’s website, it offers different kinds of windows at varying price points. If you’d like more accurate information, you can request a quote on the company’s website.

Renewal by Andersen logo
FAST QUOTE
as little as 30 seconds
Best Overall

Renewal by Andersen

★★★★★
BBB Rating: A
Locations: Nationwide
Founded: 1995
Pros:
  • Pros icon Great industry reputation
  • Pros icon Award-winning company
  • Pros icon Member of US Green Building Council
  • Pros icon Manufactures products in-house
Cons:
  • Pros icon No lifetime warranty
  • Pros icon More expensive than competition

Renewal by Andersen is a subsidiary of the Andersen Corporation, a major manufacturer of windows and doors. Andersen has around 27 years of experience in the window installation sector.

You may want to consider picking Andersen if you're looking for a installer that uses in-home estimates and advanced digital tools to help you plan and visualize your project before getting started.

Energy Efficiency of Renewal by Andersen Windows

Renewal by Andersen’s commitment to sustainability shows in its energy-efficient window offerings. A handful of windows manufactured by the Andersen corporation were awarded Energy Star’s “Most Efficient” in 2021, and Andersen was named Energy Star’s Partner of the Year in 2019.

How much does Renewal by Andersen cost in SeaTac?

While pricing is not available on Andersen’s website, based on customer feedback, you can expect to pay anywhere between $750 to $1,250 per window for an installation with Andersen. If you’d like more accurate information, you can request a quote on the company’s website.

We strive to stay unbiased and transparent by listing pros and cons for every company we review. Additionally, our rankings are not affected by any partnerships.

More Window Companies in SeaTac

Renewal by Andersen of Western Washington

Renton, WA
4.9
★★★★★
  • Pros icon Educational Website
  • Pros icon Free assessment
  • Pros icon Timely Service
  • Pros icon Good Customer Service
  • Pros icon Price Transparency

Services Offered

  • Service icon Energy-Efficient Options
  • Service icon Double-Hung
  • Service icon Bay Windows
  • Service icon Vinyl Frames
  • Service icon Glass Doors
  • Service icon Window Replacement/Installation
  • Service icon Custom Window Designs

Website: http://renewmywindows.com/
Address: 700 S Renton Village Pl Suite 600, Renton, WA 98057
Phone: (206) 777-0954

Champion Replacement Windows of Seattle

Kent, WA
4.6
★★★★★
  • Pros icon Free assessment
  • Pros icon Good Customer Service
  • Pros icon Price Transparency

Services Offered

  • Service icon Glass Doors
  • Service icon Window Replacement/Installation
  • Service icon Double-Hung
  • Service icon Bay Windows

Website: https://www.championwindow.com/Seattle/
Address: 19406 68th Ave S, Kent, WA 98032
Phone: (206) 455-9527

Window World North Puget Sound

Mountlake Terrace, WA
4.7
★★★★★
  • Pros icon Good Customer Service
  • Pros icon Educational Website
  • Pros icon Price Transparency
  • Pros icon Free assessment

Services Offered

  • Service icon Bay Windows
  • Service icon Vinyl Frames
  • Service icon Glass Doors
  • Service icon Double-Hung
  • Service icon Energy-Efficient Options
  • Service icon Window Replacement/Installation

Website: https://www.windowworldpugetsound.com/
Address: 21718 66th Ave W Suite 200, Mountlake Terrace, WA 98043
Phone: (425) 265-0101

DaBella

Federal Way, WA
4.6
★★★★★
  • Pros icon Good Customer Service
  • Pros icon Timely Service

Services Offered

  • Service icon Glass Doors
  • Service icon Double-Hung
  • Service icon Window Replacement/Installation
  • Service icon Vinyl Frames

Website: https://dabella.us/location/kent/
Address: 33530 1st Way S Suite 103, Federal Way, WA 98003
Phone: (253) 465-2353

Lake Washington Windows and Doors

Renton, WA
4.9
★★★★★
  • Pros icon Price Transparency
  • Pros icon Free assessment
  • Pros icon Good Customer Service
  • Pros icon Educational Website

Services Offered

  • Service icon Vinyl Frames
  • Service icon Window Replacement/Installation
  • Service icon Wood Frames
  • Service icon Double-Hung
  • Service icon Bay Windows
  • Service icon Glass Doors
  • Service icon Fiberglass Frames
  • Service icon Energy-Efficient Options

Website: https://lakewashingtonwindows.com/
Address: 740 SW 34th St #201, Renton, WA 98057
Phone: (425) 272-9470

Signature Window & Door Replacement

Kent, WA
4.9
★★★★★
  • Pros icon Educational Website
  • Pros icon Price Transparency
  • Pros icon Free assessment
  • Pros icon Good Customer Service
  • Pros icon Timely Service

Services Offered

  • Service icon Fiberglass Frames
  • Service icon Energy-Efficient Options
  • Service icon Custom Window Designs
  • Service icon Window Replacement/Installation
  • Service icon Glass Doors

Website: https://www.signaturewindow.com/
Address: 22613 68th Ave S, Kent, WA 98032
Phone: (253) 887-7792

American Eagle Glass

Auburn, WA
4.9
★★★★★
  • Pros icon Price Transparency
  • Pros icon Free assessment
  • Pros icon Good Customer Service

Services Offered

  • Service icon Energy-Efficient Options
  • Service icon Glass Showers
  • Service icon Window Repair
  • Service icon Window Replacement/Installation
  • Service icon Vinyl Frames

Website: https://www.americaneagleglass.com/
Address: 3220 C St NE G, Auburn, WA 98002
Phone: (877) 690-4090

Glass Doctor of Seattle

Kent, WA
4.7
★★★★★
  • Pros icon Educational Website
  • Pros icon Price Transparency
  • Pros icon Good Customer Service

Services Offered

  • Service icon Window Replacement/Installation
  • Service icon Mirrors
  • Service icon Glass Repair
  • Service icon Glass Showers
  • Service icon Energy-Efficient Options
  • Service icon Custom Glass
  • Service icon Window Repair

Website: https://glassdoctor.com/seattle
Address: 18840 72nd Ave S, Kent, WA 98032
Phone: (866) 640-7373

Apex Energy Solutions

Seattle, WA
4.7
★★★★★
  • Pros icon Good Customer Service
  • Pros icon Educational Website
  • Pros icon Free assessment

Services Offered

  • Service icon Window Replacement/Installation
  • Service icon Energy-Efficient Options

Website: http://apexenergygroup.com/
Address: 5224 Wilson Ave S UNIT 102, Seattle, WA 98118
Phone: (425) 272-5606

Windows, Doors & More

Seattle, WA
4.6
★★★★★
  • Pros icon Educational Website
  • Pros icon Good Customer Service

Services Offered

  • Service icon Bay Windows
  • Service icon Window Replacement/Installation
  • Service icon Skylights

Website: https://www.windowshowroom.com/
Address: 5961 Corson Ave S Ste. 100, Seattle, WA 98108
Phone: (206) 782-1011

Pacific Glass, Inc.

Renton, WA
4.5
★★★★★
  • Pros icon Good Customer Service
  • Pros icon Free assessment
  • Pros icon Price Transparency
  • Pros icon Timely Service
  • Pros icon Educational Website

Services Offered

  • Service icon Glass Doors
  • Service icon Custom Glass
  • Service icon Tempered Glass
  • Service icon Window Replacement/Installation
  • Service icon Mirrors
  • Service icon Glass Showers
  • Service icon Glass Repair

Website: http://www.pacificglass.biz/
Address: 221 Airport Wy, Renton, WA 98057
Phone: (425) 277-1800

King County Window & Glass

Federal Way, WA
4.7
★★★★★
  • Pros icon Educational Website
  • Pros icon Good Customer Service
  • Pros icon Price Transparency

Services Offered

  • Service icon Triple Pane Glass
  • Service icon Glass Repair
  • Service icon Glass Showers
  • Service icon Window Replacement/Installation
  • Service icon Glass Doors
  • Service icon Vinyl Frames
  • Service icon Skylights

Website: http://kcwindowandglass.com/
Address: 34310 9th Ave S # 110, Federal Way, WA 98003
Phone: (253) 905-8268

Sunrise Glass

Kent, WA
4.1
★★★★★
  • Pros icon Price Transparency
  • Pros icon Free assessment
  • Pros icon Good Customer Service

Services Offered

  • Service icon Glass Repair
  • Service icon Glass Doors
  • Service icon Custom Glass
  • Service icon Window Replacement/Installation
  • Service icon Energy-Efficient Options
  • Service icon Glass Showers
  • Service icon Wood Frames
  • Service icon Skylights
  • Service icon Mirrors

Website: http://www.sunriseglassinc.com/
Address: 707 Central Ave S, Kent, WA 98032
Phone: (253) 813-5774

Valley Glass

Kent, WA
3.9
★★★★★

    Services Offered

    • Service icon Window Replacement/Installation
    • Service icon Glass Repair
    • Service icon Screen Repair
    • Service icon Glass Showers
    • Service icon Vinyl Frames
    • Service icon Mirrors

    Website: http://www.valleyglass.net/
    Address: 10235 SE 260th St, Kent, WA 98030
    Phone: (253) 852-4460

    Smart Glass Inc

    Seattle, WA
    3.9
    ★★★★★
    • Pros icon Timely Service
    • Pros icon Price Transparency
    • Pros icon Good Customer Service
    • Pros icon Free assessment

    Services Offered

    • Service icon Window Replacement/Installation
    • Service icon Mirrors
    • Service icon Glass Showers
    • Service icon Glass Repair
    • Service icon Window Repair
    • Service icon Energy-Efficient Options
    • Service icon Glass Doors

    Website: https://pugetsoundsmartglass.com/
    Address: 2723 4th Ave S, Seattle, WA 98134
    Phone: (206) 464-1444

    Niemen Glass

    Federal Way, WA
    4.2
    ★★★★★
    • Pros icon Free assessment
    • Pros icon Timely Service
    • Pros icon Good Customer Service
    • Pros icon Price Transparency

    Services Offered

    • Service icon Window Replacement/Installation
    • Service icon Vinyl Frames
    • Service icon Mirrors
    • Service icon Glass Showers

    Website: http://www.fwngc.com/
    Address: Niemen Glass, 34621 16th Ave S, Federal Way, WA 98003
    Phone: (253) 838-1810

    Roxy Glass LLC

    Bellevue, WA
    4.2
    ★★★★★
    • Pros icon Educational Website
    • Pros icon Good Customer Service
    • Pros icon Timely Service
    • Pros icon Price Transparency

    Services Offered

    • Service icon Mirrors
    • Service icon Window Replacement/Installation
    • Service icon Glass Showers

    Website: http://roxyglassllc.com/
    Address: 13547 SE 27th Pl Suite 4A2, Bellevue, WA 98005
    Phone: (206) 466-6788

    7Glass - Mirror, Shower Door, Window Repair and Replacement

    Bellevue, WA
    4.9
    ★★★★★
    • Pros icon Good Customer Service
    • Pros icon Price Transparency
    • Pros icon Timely Service
    • Pros icon Free assessment
    • Pros icon Educational Website

    Services Offered

    • Service icon Window Repair
    • Service icon Window Replacement/Installation
    • Service icon Mirrors
    • Service icon Glass Repair
    • Service icon Glass Showers

    Website: http://www.7glass.us/
    Address: 2020 124th Ave NE #C 102, Bellevue, WA 98005
    Phone: (206) 707-5082

    state glass llc

    Kent, WA
    3.5
    ★★★★★
    • Pros icon Free assessment
    • Pros icon Price Transparency
    • Pros icon Good Customer Service

    Services Offered

    • Service icon Window Replacement/Installation

    Website: https://state-glass-llc.business.site/
    Address: 19226 66th Ave S l103, Kent, WA 98032
    Phone: (253) 394-6260

    West Seattle Window & Door LLC

    Seattle, WA
    3.4
    ★★★★★
    • Pros icon Free assessment
    • Pros icon Good Customer Service

    Services Offered

    • Service icon Window Replacement/Installation

    Website: http://westseattlewindows.com/
    Address: 1416 SW Roxbury St, Seattle, WA 98106
    Phone: (206) 890-1910
    SeaTac Window Cost Calculator

    Calculate how much you can expect to pay for window installation and replacement in SeaTac, WA using our customized window cost calculator.

    Estimated Window Cost:
    161 homeowners have requested a free estimate in the last 3 days.

    Estimates will vary based on window dimensions and other unique factors to your home. Getting in touch with a local window installer is the best way to get an accurate cost estimate for your home.

    How Installing Energy-Efficient Windows in SeaTac Saves You Money

    Energy-efficient windows can provide benefits in several ways. Here are a few reasons you may want to make the switch:

    • Save money on electricity bills: Switching to energy-efficient windows lowers your energy bills by about 12% because you need less energy.
    • Protect your valuables from fading: When you upgrade to energy-efficient windows with low-emissivity coatings, your floors, carpets and furniture will be protected from fading due to their ability to filter out damaging UV rays.
    • Protect your investment: The older your home is, the more likely you are to benefit from switching to energy-efficient windows. Older homes tend to have windows that are outdated, leaky or potentially even damaged in some way. Upgrading your windows could help increase the value of your property if you decide to sell.
    • Decrease your carbon footprint: You can reduce your indirect greenhouse gas emissions by about 12% after you install Energy Star certified windows. In SeaTac, that’s about 271 pounds per year on average.

    Estimated Cost of Window Replacement in SeaTac

    Each window installation company provides varying services and has varying prices depending on several factors.

    How Much Do New Windows Cost?

    Generally, SeaTac homeowners can anticipate their replacement window installations to range from $250 to $1,200. The most common installations sit at about $600. These estimates vary depending on specific characteristics of your installation, including size, material, the location of your home, number of windows, type and more.

    With windows, efficiency is one of the most important factors for many homeowners. Efficient windows may cost more off the bat, but by increasing the efficiency of your home — especially during the winter — they can give you decades of energy savings. According to Energy Star, buying certified energy-efficient windows can save SeaTac homeowners $366+ per year after replacing single-pane windows.

    Another factor that affects the overall cost is the material of the frame you pick. Aluminum frames are typically the least expensive and are sturdy and light, but they provide poor insulation. On the other hand, wood frames cost the most, as they are aesthetically pleasing and offer decent insulation. Fiberglass and vinyl frames provide good insulation as well and cost somewhere between the other two.

    What Services do Window Installers Offer?

    There are typically two types of window installation services: full-frame and pocket installations.

    Full-frame installations are usually done when you want to change the style of your windows or your window has a lot of rot. With this service, your professionals will replace the entire window, including the trim, frame and sill. A pocket installation involves replacing a window without replacing the frame. This means instead of tearing out the whole unit and reinstalling it, the window installer will just put the replacement window (also called a retrofit or insert window) into the frame.

    Your window installation company can recommend the best type for your project. In SeaTac, the decision will mostly be influenced by the efficiency of your home and how old your existing frames are.

    Best Availability

    Renewal by Andersen

    ★★★★★
    4.5
    • Great industry reputation
    • Member of US Green Building Council
    • Manufactures products in-house
    Buy One Window, Get One 40% OFF
    Get Estimate

    Best Energy-Efficient Features

    Champion

    ★★★★★
    4.5
    • Many years of experience
    • Low prices relative to competitors
    • Limetime warranty
    Buy 2 Windows, Get 2 Free
    Get Estimate

    Power Home

    ★★★★★
    4.5
    • Uses eco-friendly materials
    • Well-trained, certified installers
    • Lifetime or lengthy warranty
    Next-Day Appointments Available
    Get Estimate

    How We Choose the Best Window Installers in SeaTac

    EcoWatch reviews differ from other reviews because we look at these companies through a sustainability lens. Along with energy efficiency, we evaluated several window installers in SeaTac and assigned rankings based on the following methodology:

    Service Area

    Because this is a guide for SeaTac, we only included companies that serve the city. There are other reputable providers that didn’t make the list because of the low odds that they would serve the average homeowner in SeaTac.

    Work Quality

    We’re willing to bet that you’re not looking for a company to do a shoddy job installing windows. We’ve vetted each installer included in our guide to ensure its contractors are well-qualified and that the company has gotten tons of positive customer feedback to vouch for its service.

    Customer Reviews

    We analyzed trends in recent customer feedback to find the companies with the most consistent customer satisfaction. Customer satisfaction may be the most important factor, as it indicates the quality of services across most other categories, including quality of parts, quality of installation, cost, professionalism, warranty and more.

    Cost

    This one is a give-and-take: as with other services, cheap window companies are not going to provide the highest quality service. Still, we want to ensure we’re highlighting companies that provide a range of price and financing options so they’re accessible to most homeowners.

    Warranty

    Protecting your investment in new windows is important to many homeowners. For that reason, window installation companies that give you lengthy warranties for products, parts and labor rank higher with EcoWatch.

    Years of Experience

    Because of SeaTac’s climate, homeowners need to be wary of rot, water damage and low efficiency. We factored in local experience to reflect the ability of SeaTac window companies to prepare homes for these issues. If a company has less than 10 years of experience, it loses points in this category.

    SeaTac, WA Window Replacement FAQs

    What is the average cost to install new windows?

    The typical cost to install a window ranges between $450 and $650. There are many factors that affect the price, such as the materials used in designing the windows, how energy-efficient the windows are, local labor costs, your property’s location, the number of windows and styles and sizes of windows.

    What kind of window is the best for energy efficiency?

    A window’s energy efficiency is affected by several factors, including the quality of the installation and what kind of window it is. Look for Energy Star Certified windows — these are typically the most energy-efficient and are certified by the U.S. Department of Energy.

    What services do window replacement companies provide?

    Window installation companies will do the entire process — from replacing old windows with new ones to cleaning up after the installation. In addition, some companies offer window manufacturing, customization and repairs.

    When is the best time of year to replace windows?

    Replacement windows can be installed any time of the year, but warmer weather is typically better. Regardless of when you install them, the contractors will take steps to ensure that too much hot or cold air doesn’t get into the house, so the temperature outside isn’t necessarily a big factor. What’s more important than the temperature is that the weather should be dry.