20 Best Window Companies in Washington, PA (2024 Reviews)
Thinking about replacing your windows? We’ve got all the information you need in this guide to the best window installation companies.
We analyzed all the top-rated window companies in Washington 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 guide on the top window installation companies in Washington may not seem like the most riveting article on EcoWatch, but trust us, windows have more of an impact on your life than you might realize. Drafty or leaky windows can make your home uncomfortable in the summer or winter.
Installing new, efficient windows on your property can help you save money each month on your electricity bills — and you can help the environment, too.
Efficient windows are especially important in Washington, where the temperature varies throughout the year. According to Energy Star, making the switch to energy-efficient windows can save the average homeowner up to $304 each year.
Best Availability
Renewal by Andersen
- Great Industry Reputation
- Award-winning Company
- Member of US Green Building Council
- Manufactures products in-house
Power Home
- Uses eco-friendly materials
- Well-trained, certified installers
- Lifetime or lengthy warranty
Best for Residential Windows
Window Nation
- Custom Designs
- Wide variety of products and services
- Manufactures products in-house
Best Window Installation & Replacement Companies in Washington
The EcoWatch Reviews team researched many window providers across Washington to narrow our list down to the best ones. The providers mentioned in this article passed our review standards for energy-efficient offerings as well as price, customer service, local expertise and beyond.

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 is the largest window replacement company in the country, known for its vinyl windows and affordability. This company has been in business since 1995 and currently services 200 locations nationwide.
Window World may be the company for you if you're interested in one 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 WindowsIts high-performance Low-E (low-emissivity) coatings and argon gas insulation offer exceptional efficiency and performance for any home. Not all of Window World’s windows are Energy Star certified, so be sure to mention that you’d like Energy Star windows when inquiring.
How much does Window World cost in Washington?Though prices are not available on Window World’s website, it's known for offering some of the most affordable window installations around. The best way to get more accurate pricing information is to request a free 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 is a subsidiary of the Andersen Corporation, a major manufacturer of windows and doors. This company has been in business since 1995 and currently services nearly every state except Mississippi and West Virginia.
Andersen may be the company for you if you're interested in one 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 WindowsA 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. Not all of Andersen’s windows are Energy Star certified, so be sure to mention that you’d like Energy Star windows when inquiring.
How much does Renewal by Andersen cost in Washington?Though 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. The best way to get more accurate pricing information is to request a free quote from the company.

Aeroseal Windows
Many years of experience
Great industry reputation
Low number of customer complaints
Manufactures products in-house
Custom Designs
No lifetime warranty
Not ideal for residential installations
Aeroseal Windows is an installer that mainly serves commercial and multifamily properties, and also specializes in railings. If you’re looking for residential window installations, you should probably refer to one of the other companies on this list. This company has been in business since 1999 and currently services 13 states and Washington D.C.
Aeroseal may be the company for you if you're interested in one that installs windows and doors at businesses across the Eastern U.S.
Energy Efficiency of Aeroseal Windows WindowsThe company claims it helps businesses save on energy expenses and reduce their carbon footprints with energy-efficient windows, as well as practices like Low-E glass coating, weatherstripping and more. Not all of Aeroseal’s windows are Energy Star certified, so be sure to mention that you’d like Energy Star windows when inquiring.
How much does Aeroseal Windows cost in Washington?Though prices are not available on Aeroseal’s website, it provides high-quality windows at a competitive price point. The best way to get more accurate pricing information is to request a free quote from the company.

Window Nation
Award-winning company
Manufactures products in-house
Custom designs
Wide variety of products and services
Installation not covered by warranty
Limited service area
Window Nation is a company that serves hundreds of thousands of homeowners, mostly in the mid-Atlantic region of the U.S. This company has been in business since 2006 and currently services residents within 75 miles of its showrooms, which are in 13 states.
Window Nation may be the company for you if you're interested in one that gives customers the opportunity to view products and to speak to a representative in person in its showrooms.
Energy Efficiency of Window Nation WindowsEach product has windowpanes coated with a Low-E (low emissivity) glaze that prevents damaging UV rays from heating your home. Plus, the spaces between double- and triple-pane windows are filled with argon gas that’s been proven to improve home insulation. Not all of Window Nation’s windows are Energy Star certified, so be sure to mention that you’d like Energy Star windows when inquiring.
How much does Window Nation cost in Washington?Though prices are not available on Window Nation’s website, based on customer feedback, you can expect to pay between $300 and $525 per window installed, making it a more affordable option compared to competitors. The best way to get more accurate pricing information is to request a free quote from the company.
We try 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 Washington
Renewal by Andersen of the Capital Region
North Bethesda, MDFree assessment
Price Transparency
Good Customer Service
Educational Website
Services Offered
Bay Windows
Window Replacement/Installation
Skylights
Glass Doors
Double-Hung
Window Nation
Mechanicsburg, PAEducational Website
Free assessment
Good Customer Service
Price Transparency
Services Offered
Double-Hung
Energy-Efficient Options
Glass Doors
Custom Window Designs
Window Replacement/Installation
Bay Windows
Replacement Windows and Doors-Homerite Waynesboro
Waynesboro, PAGood Customer Service
Educational Website
Free assessment
Price Transparency
Services Offered
Glass Doors
Window Replacement/Installation
Glass Repair
Energy-Efficient Options
American Awnings and Replacement Windows
Chambersburg, PATimely Service
Free assessment
Educational Website
Price Transparency
Good Customer Service
Services Offered
Window Replacement/Installation
Milcon Design & Build
Waterford, VAFree assessment
Price Transparency
Educational Website
Services Offered
Window Replacement/Installation
Glass Doors
HomeRite
Mechanicsburg, PAFree assessment
Price Transparency
Educational Website
Services Offered
Double-Hung
Window Replacement/Installation
Energy-Efficient Options
Tempered Glass
C2 Operations
Leesburg, VAFree assessment
Price Transparency
Educational Website
Services Offered
Window Replacement/Installation
Glass Doors
Double-Hung
Susquehanna Valley Door and Window
York, PAFree assessment
Educational Website
Price Transparency
Good Customer Service
Services Offered
Bay Windows
Double-Hung
Window Replacement/Installation
Glass Doors
Energy-Efficient Options
Garrety Glass - Betterliving Sunrooms
Cockeysville, MDTimely Service
Price Transparency
Good Customer Service
Educational Website
Free assessment
Services Offered
Window Replacement/Installation
Custom Glass
Glass Doors
Glass Showers
Mirrors
Glass Repair
Bay Windows
AC Matthews, Roofing & Exteriors
Towson, MDGood Customer Service
Educational Website
High-quality materials
Free assessment
Energy-efficient windows
Price Transparency
All-inclusive repair and maintenance
Services Offered
Window Replacement/Installation
KELEMER BROTHERS REPLACEMENT WINDOWS
Silver Spring, MDEducational Website
Free assessment
Price Transparency
Services Offered
Energy-Efficient Options
Window Replacement/Installation
Tri County Windows and Siding
Vienna, VAGood Customer Service
Free assessment
Educational Website
Price Transparency
Services Offered
Glass Doors
Bay Windows
Skylights
Double-Hung
Custom Window Designs
Window Replacement/Installation
Glass & Mirror Services, Inc.
Frederick, MDFree assessment
Price Transparency
Services Offered
Energy-Efficient Options
Window Replacement/Installation
Custom Glass
Metal Frames
Glass Showers
Mirrors
Glass Repair
B T Window & Doors LLC
Sykesville, MDFree assessment
Educational Website
Price Transparency
Good Customer Service
Services Offered
Window Replacement/Installation
Energy-Efficient Options
Glass Doors
Custom Window Designs
Bay Windows
MDVA Windows
Clarksburg, MDGood Customer Service
Free assessment
Services Offered
Glass Doors
Window Replacement/Installation
Window Repair
Potomac View Energy
Sykesville, MDPrice Transparency
Free assessment
Good Customer Service
Educational Website
Timely Service
Services Offered
Vinyl Frames
Bay Windows
Window Replacement/Installation
Energy-Efficient Options
Double-Hung
Custom Window Designs
Glass Doors
Wood Frames
Grand Opening Windows & Doors
New Kingstown, PAFree assessment
Educational Website
Good Customer Service
Services Offered
Window Replacement/Installation
Bay Windows
Glass Doors
Double-Hung
Custom Window Designs
Tri-State Screens
Purcellville, VATimely Service
Free assessment
Price Transparency
Educational Website
Good Customer Service
Services Offered
Glass Doors
Window Replacement/Installation
Glass Doctor of Mechanicsburg, PA
Mechanicsburg, PAEducational Website
Good Customer Service
Price Transparency
Services Offered
Glass Repair
Glass Doors
Window Repair
Window Replacement/Installation
Glass Showers
Custom Glass
Mirrors
Energy-Efficient Options
Pella Windows & Doors of Gaithersburg
Gaithersburg, MDGood Customer Service
Free assessment
Educational Website
Services Offered
Glass Doors
Window Replacement/Installation
Double-Hung
Wood Frames
Calculate how much you can expect to pay for window installation and replacement in Washington, PA 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 Washington Saves You Money
There are quite a few benefits of switching to energy-efficient windows. Some reasons you may want to consider making the switch are the following:
- Reduce your carbon footprint: Decreasing the amount of energy you use also lowers your carbon emissions. You could reduce it by 286 pounds per year on average.
- Protect your valuables: Many energy-efficient windows have low-emissivity coatings, which not only provide better insulation for your home, but also filter out damaging UV rays, preventing your furniture, carpet and other valuables from fading.
- Protect your investment: Upgrading and repairing your windows is an important part of maintaining your property and its value, particularly if you have an older home.
- Save money on energy bills: After you switch to energy-efficient windows, you can see a reduction in your bills by about 12% because you’ll use less energy to heat or cool your home.
Estimated Cost of Window Replacement in Washington
Each window replacement company provides various services and has varying prices based on a few factors.
How Much Do New Windows Cost?
Generally, homeowners in Washington can anticipate that most window installations will cost between $250 and $1,200, with the average cost at about $600. But costs vary remarkably depending on the size of your home, complexity of the installation, your location and the quality of the company you choose. Many window companies also offer door installations, which will make your project cost more.
Whether or not you pick energy-efficient windows is another factor that will determine the cost. These will usually cost more than other windows, but on the other hand, you can save about $304 a year on your energy bills in Washington.
Something else that influences the total cost is the material of the frame you pick. 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 are the most expensive because 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 a window installation is to clarify whether you need a full-frame or pocket installation.
A full-frame installation is a replacement of the total window. This service involves removing the old window, the sill, and the exterior and interior trim. It also involves additional materials, such as insulation and drip edges, which increase the overall cost of the project. It’s also worth noting that you may have to touch up the paint around the window after a full-frame installation. Pocket installations (or retrofits) involve installing a new window within its existing frame, which makes pocket installations more simple and affordable. But, if the frame has any rot or deterioration, you will likely need a full-frame installation instead.
Your window installer can help you choose which type of installation you should get.
Best Availability
Renewal by Andersen
- Great Industry Reputation
- Award-winning Company
- Member of US Green Building Council
- Manufactures products in-house
Power Home
- Uses eco-friendly materials
- Well-trained, certified installers
- Lifetime or lengthy warranty
Best for Residential Windows
Window Nation
- Custom Designs
- Wide variety of products and services
- Manufactures products in-house
How We Choose the Best Window Installers in Washington
The EcoWatch Reviews team differs from other reviewers, as we examine these companies through a sustainability lens. We’ve evaluated the best window installers in Washington mainly based on energy efficiency, as it’s what’s best for the environment and for you as a homeowner. Energy Star certified windows have been shown to cut your power bills by hundreds of dollars. Along with energy efficiency, our rating methodology is based on the following factors:
Service Area
Since this is a guide for Washington, we only included companies that provide services to the city. There are other reputable providers that didn’t make the list because they wouldn’t be able to serve homeowners in Washington.
Work Quality
We’re certain that you’re looking for professionals who do a great job installing windows. We’ve vetted each company featured in our guide to make sure its technicians are well-qualified and that the company has received lots of positive customer feedback to vouch for its service.
Customer Reviews
We analyzed patterns in recent customer feedback to find the companies with the most consistent customer satisfaction, weighted by sample size. Customer satisfaction might be the factor we place the most value on, as it indicates the quality of services across nearly every category, including professionalism, cost, quality of installation, quality of parts, warranty and more.
Cost
Cheaper windows don’t necessarily mean better windows, but we know many of our readers would like to keep costs low when possible. When analyzing providers’ prices, we awarded higher points to companies with reasonable prices and accessible financing rather than “cheaper” services.
Warranty
As discussed, windows are a hefty investment, so you’ll want to make sure that investment is well protected. Window installation companies that have lengthy warranties for products, parts and installation (aka workmanship) rank higher with EcoWatch.
Years of Experience
Due to Washington’s climate, homeowners will want to mitigate low efficiency, rot and water damage. We factored in local experience to reflect the ability of Washington window companies to prepare homes for these issues. If a company has less than 10 years of experience, it loses points in this category.
Washington, PA Window Replacement FAQs
What is the average cost to replace windows in a home?
The national average cost of installing one window is around $600 but can range from $200 to $1,200, based on several factors. The price is usually influenced by the type and material of the window, the size of the window and the location of your property. Also, keep in mind that energy-efficient windows may cost more initially but can save you hundreds of dollars a year in energy bills.
What are the most common types of replacement windows?
The most common kinds of windows for homes are casement windows, double-hung and single-hung windows, slider windows, transom windows, bay windows, picture windows and awning windows.
Can you install your own windows?
Although you can install your own windows, doing so requires a lot of time and handiness. Using a window installation company can help ensure that the job is done properly and that you won’t have to spend the time and effort to do it yourself.
How long does window installation usually take?
Each window takes about 30 minutes to install depending on the type of window. However, the window installation can be a two-day job — or more — if you need to have a lot of windows installed.