20 Best Window Companies in Kent, WA (2025 Reviews)
If you’re looking to get new windows, our list of the best window installation companies can help.
We analyzed all the top-rated window companies in Kent and selected the best 20 based on:
Customer reviews
Window installation expertise
Popularity with home-owners like you
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Why you can trust EcoWatch
A review of the best window replacement companies in Kent may not seem like the most interesting article on the EcoWatch site, but trust us, windows have more of an impact on your life than you might realize. During the cold winter months, the last thing you want is your heat to leak out of your outdated windows.
Replacement windows improve your home’s insulation, not only making you and your family more comfortable during extreme temperatures, but also saving you money and helping the environment.
So if you’re building a new home, renovating or replacing your windows in Kent, this guide is the best place to get started.
Best Availability
Renewal by Andersen
- Great Industry Reputation
- Award-winning Company
- Member of US Green Building Council
- Manufactures products in-house
Best Energy-Efficient Features
Champion
- Many years of experience
- Low prices relative to competitors
- Limetime warranty
Power Home
- Uses eco-friendly materials
- Well-trained, certified installers
- Lifetime or lengthy warranty
Best Window Installation & Replacement Companies in Kent
The EcoWatch Reviews team researched dozens of installers that service the Kent area to find the top window installation companies by our standards. The installers we’ve included in this article scored best in our categories, including energy-efficient offerings, customer service, availability, price and more.

Window World
EnergyStar Partner
Large serice area
Low prices relative to competitors
Great industry reputation
Lifetime warranty
Quality of service will depend on your area
Window World offers windows expertise in Kent. It's 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 business.
You may want to consider choosing 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 WindowsThere are a wide variety of window types available from Window World, some of which are Energy Star products. 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 Kent?Although prices are not available on Window World’s website, it's known for offering some of the most affordable window installations around. For more accurate information on pricing, you can receive a quote from the company.

Milgard Windows & Doors
EnergyStar Partner
Wide network of installers
Lifetime warranty available
Entails hiring third-party contractors
Limited additional services
Milgard Windows & Doors offers the best local installation in Kent. It's 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 business.
You may want to consider choosing 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 WindowsThere are a wide variety of window types available from Milgard Windows & Doors, some of which are Energy Star products. 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 Kent?Although prices are not available on Milgard’s website, it offers different kinds of windows at varying price points. For more accurate information on pricing, you can receive a quote from the company.

Renewal by Andersen
Great industry reputation
Award-winning company
Member of US Green Building Council
Manufactures products in-house
No lifetime warranty
More expensive than competition
Renewal by Andersen offers the best availability in Kent. It's a subsidiary of the Andersen Corporation, a major manufacturer of windows and doors. Andersen has around 27 years of experience in the window installation business.
You may want to consider choosing 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 WindowsThere are a wide variety of window types available from Renewal by Andersen, some of which are Energy Star products. 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 Kent?Although prices are 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. For more accurate information on pricing, you can receive a quote from the company.
We’ve recommended installers with shining reputations, but bear in mind that some national companies have independently owned locations in Kent, so the quality of service may vary depending on your local crew. We have tried to remain unbiased and transparent by including pros and cons for each company we reviewed.
More Window Companies in Kent
Renewal by Andersen of Western Washington
Renton, WAPrice Transparency
Educational Website
Good Customer Service
Free assessment
Services Offered
Vinyl Frames
Bay Windows
Energy-Efficient Options
Window Replacement/Installation
Glass Doors
Double-Hung
Custom Window Designs
Champion Replacement Windows of Seattle
Kent, WAFinancing and warranties available
Full-service provider
Price Transparency
Step-by-step guides available online
Free assessment
Good Customer Service
Services Offered
Glass Doors
Double-Hung
Window Replacement/Installation
Bay Windows
DaBella
Bremerton, WATransferable warranties
Glasswing® and Fairfield® vinyl windows
Timely Service
Good Customer Service
family_owned
Services Offered
Double-Hung
Glass Doors
Vinyl Frames
Window Replacement/Installation
state glass llc
Kent, WAServices Offered
Window Replacement/Installation
West Seattle Window & Door LLC
Seattle, WAGood Customer Service
Free assessment
Services Offered
Window Replacement/Installation
TN Glass Install LLC
Tacoma, WAPrice Transparency
Free assessment
Good Customer Service
Services Offered
Energy-Efficient Options
Glass Showers
Glass Doors
Glass Repair
Window Replacement/Installation
Window Repair
Orca Roofing & Exteriors
Bellevue, WAPrice Transparency
Offers environmental impact reports
Free assessment
Good Customer Service
Free in-home consultation
Educational Website
Specialized debris management systems
Services Offered
Window Replacement/Installation
Energy-Efficient Options
Einar Johanson Window & Door
Seattle, WAPrice Transparency
Free assessment
Timely Service
Free in-home consultation
Online service requests
Good Customer Service
Locally owned and operated
Services Offered
Custom Window Designs
Window Replacement/Installation
Perdue Builders & Supply, Inc.
Bothell, WAGood Customer Service
Educational Website
Price Transparency
Free assessment
Services Offered
Window Replacement/Installation
Norwest Home Improvements LLC
Poulsbo, WAPrice Transparency
Educational Website
Good Customer Service
Free assessment
Services Offered
Window Replacement/Installation
Vinyl Frames
Seattle Home Windows
Lynnwood, WAGood Customer Service
Educational Website
Free assessment
Services Offered
Wood Frames
Glass Doors
Vinyl Frames
Window Replacement/Installation
Window Repair
ALL STAR WINDOWS Window and Door Sales and Installation
Olympia, WAFree assessment
Services Offered
Window Replacement/Installation
ACE Glass - Replacement & Installation
Mukilteo, WAGood Customer Service
Educational Website
Free assessment
Price Transparency
Services Offered
Window Replacement/Installation
Glass Doors
Skylights
Mirrors
Window Repair
True Windows and Doors
Snohomish, WAPrice Transparency
Free assessment
Services Offered
Window Replacement/Installation
Skylights
Glass Doors
Custom Window Designs
Tempered Glass
Energy-Efficient Options
Eagle Creek Siding - Tumwater
Tumwater, WAFree assessment
Educational Website
Price Transparency
Services Offered
Energy-Efficient Options
Window Replacement/Installation
Signature Window & Door Replacement
Kent, WAFree assessment
Price Transparency
Educational Website
Good Customer Service
Timely Service
Services Offered
Window Replacement/Installation
Energy-Efficient Options
Glass Doors
Fiberglass Frames
Custom Window Designs
Lake Washington Windows and Doors
Renton, WAPrice Transparency
Good Customer Service
Timely Service
Free assessment
Educational Website
Services Offered
Energy-Efficient Options
Bay Windows
Vinyl Frames
Glass Doors
Window Replacement/Installation
Double-Hung
Fiberglass Frames
Wood Frames
Cabrera Construction
Bonney Lake, WAGood Customer Service
Free assessment
Price Transparency
Educational Website
Services Offered
Window Replacement/Installation
PACIFIC WINDOWS
Tacoma, WAFree assessment
Services Offered
Window Replacement/Installation
7Glass - Mirror, Shower Door, Window Repair and Replacement
Bellevue, WATimely Service
Price Transparency
Free assessment
Educational Website
Good Customer Service
Services Offered
Glass Showers
Glass Repair
Mirrors
Window Repair
Window Replacement/Installation
Calculate how much you can expect to pay for window installation and replacement in Kent, WA using our customized window cost calculator.
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 Kent Saves You Money
When you switch to energy-efficient windows, you may see some perks, including:
- Protect your valuables: Many energy-efficient windows have low-emissivity coatings, which not only provide better insulation for your home, but also filter out harmful UV rays, preventing your furniture, carpet and other valuables from fading.
- Protect your investment: If you have an older home, your windows are most likely in need of replacement. Upgrading your windows can improve the insulation in your home and also help raise the value of your property if you decide to sell.
- Save on energy bills: According to the Department of Energy, heat gained or lost through windows makes up about 25-30% of household energy use. Upgrading to energy-efficient models can help reduce how much you have to pay, therefore saving you about 12% more on your bills.
- Decrease your carbon footprint: You can reduce your carbon footprint by about 12% after you install Energy Star certified windows. In Kent, that’s about 271 pounds per year on average.
Estimated Cost of Window Replacement in Kent
Windows come in varying shapes, styles and purposes, so costs and services will vary greatly based on your project. Below, we describe the average cost and services that you’ll find from window installation companies.
How Much Do New Windows Cost?
Even though the typical cost to install one window is around $600, it can range anywhere from $200 to $1,200. But costs differ remarkably based on the size of your home, complexity of the installation, your location and the quality of the company you choose. Many window installers also offer door installations and replacements, which have a higher price tag.
Bear in mind that energy-efficient windows may cost more upfront, but Energy Star estimates the upgrade will save you between $101 and $583 a year when you install single-pane windows and between $27 and $197 a year when you install double-pane, clear glass windows. Your savings will vary based on your local climate, energy rates and individual home characteristics.
Something else that influences the total cost is the material of the frame you select. Aluminum frames are generally the least expensive and are sturdy and relatively maintenance-free, but they provide poor insulation. On the other hand, wood frames cost the most, as they are aesthetically pleasing and provide decent insulation. Fiberglass and vinyl frames provide good insulation and cost somewhere between the other two.
What Services do Window Installers Offer?
The first step when planning an installation is to decide whether you need a full-frame or pocket installation.
Full-frame installations are necessary when you want a new style or your window has a lot of rot. With this service, your installers will replace the whole window, including the frame, sill and trim. Pocket installations (also known as retrofits) are when you replace a window without replacing the frame. Pocket installations are simpler and will be less expensive, but you can’t do this kind of installment if you have any pre-existing rot or water damage.
Your window replacement company will be able to help you figure out what’s best for your needs. In Kent, the decision will mostly depend on the age of your windows and if there’s any damage. Wood can decay if it’s not maintained properly over the years, so it’s a good idea to have a professional assess your frames and window sills.
Best Availability
Renewal by Andersen
- Great Industry Reputation
- Award-winning Company
- Member of US Green Building Council
- Manufactures products in-house
Best Energy-Efficient Features
Champion
- Many years of experience
- Low prices relative to competitors
- Limetime warranty
Power Home
- Uses eco-friendly materials
- Well-trained, certified installers
- Lifetime or lengthy warranty
How We Choose the Best Window Installers in Kent
EcoWatch reviews are different from other reviews, as we look at these companies through a sustainability lens. Along with energy efficiency, we analyzed each installer and ranked them using the following methodology:
Service Area
Because this is a guide for Kent, we paid more attention to companies that cover the city. There are other reputable providers that didn’t make the cut because of the low odds that they would serve the average homeowner in Kent.
Work Quality
When picking new windows, the quality and range of services can often play just as important of a role in insulation and performance as the brand of window you choose. We do give window installers higher marks if they offer high-quality products, but we also consider workmanship as reflected in customer feedback.
Customer Reviews
We analyzed patterns in recent online reviews to determine the companies with the highest rates of customer satisfaction, weighted by sample size. Customer satisfaction may be the most important factor, as it indicates the quality of services across most other categories, including professionalism, cost, quality of installation, quality of parts, warranty and more.
Cost
This one is a give-and-take: similar to other services, cheap window installation companies are not going to provide the most quality service. Still, we want to ensure we’re highlighting companies that offer a range of price and financing options so they’re accessible to most homeowners.
Warranty
As discussed, windows are a significant investment, so you’ll want to make sure that investment is protected. Window installation companies that provide lengthy warranties for products, parts and labor rank higher with EcoWatch.
Years of Experience
Because of Kent’s climate, homeowners need to be wary of low efficiency, rot and water damage. We factored in local experience to reflect the ability of Kent window companies to prepare homes for the climate. If a company has less than 10 years of experience, it loses points in this category.
Kent, WA Window Replacement FAQs
What is the average cost to install windows in a home?
The average cost to replace a window ranges between $450 and $650. There are several factors that affect how much it costs, including styles and sizes of windows, the materials used in designing the windows, your property’s location, how energy-efficient the windows are, local labor costs and the number of windows.
What are the most common kinds of replacement windows?
The most common kinds of windows for homes are bay windows, picture windows, slider windows, awning windows, double-hung and single-hung windows, casement windows and transom windows.
Can I replace my own windows?
Even though you can install your own windows, doing so requires a lot of time and handiness. Using a window installation company can help guarantee that the installation is done properly and that you can avoid spending the time and effort of doing it yourself.
How often should you replace your windows?
Windows typically have a lifespan of around 20 to 30 years, but anytime you see damage on your windows, it’s a good time to have an expert take a look at them to determine if they need any repairs or replacements.
Should I replace all my windows at the same time?
If your windows are more than 20 years old, you most likely need to replace all of them. At that point, they are typically less efficient, leakier and/or more damaged than new windows. Doing your windows all at once will involve less paperwork and less stress.