20 Best Window Companies in Alexandria, VA (2025 Reviews)
When it’s time to upgrade your windows, our guide to the best window installation companies can help you find the right provider for you.
We analyzed all the top-rated window companies in Alexandria 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
Although environmentally friendly energy sources like wind and solar are important when it comes to lowering your carbon footprint, improving your house’s energy efficiency can also have a considerable impact on home energy conservation. Drafty windows can cost you in energy bills. As a matter of fact, the Department of Energy estimates that about 30% of your house’s heat or cool air could be lost through your windows.
Luckily, helping you save energy with more efficient windows also aligns with our goals of conserving energy and the resources it takes to make it.
Because windows have such a big impact on your home, choosing the right company for you is a big decision to make. That’s why the EcoWatch team has created this list of the best window installation companies, so you can more easily make an informed decision.
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 Alexandria
The EcoWatch team evaluated dozens of installers in Alexandria to find the top ones for our readers. The providers we’ve included in this article scored best in our categories, including energy-efficient offerings, price, availability, customer service 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 is the largest window replacement company in the country, known for its vinyl windows and affordability. Window World has about 27 years of experience in the window replacement sector. The company has hundreds of positive reviews from customers online.
It has established itself as a company 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 WindowsWindow World is an Energy Star partner and offers a variety of energy-efficient windows that are Energy Star certified. Note that not all of the company’s windows are Energy Star certified, so be sure to mention that you want energy-efficient windows to your Window World representative when inquiring about services.
How much does Window World cost in Alexandria?Window World does not list prices on its website, but it's known for offering some of the most affordable window installations around. Getting a free quote on its website is the best way to get more accurate pricing information.

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. Andersen has about 27 years of experience in the window replacement sector. The company has hundreds of positive reviews from customers online.
It has established itself as a company 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 WindowsRenewal by Andersen is an Energy Star partner and offers a variety of energy-efficient windows that are Energy Star certified. Note that not all of the company’s windows are Energy Star certified, so be sure to mention that you want energy-efficient windows to your Andersen representative when inquiring about services.
How much does Renewal by Andersen cost in Alexandria?Andersen does not list prices on its website, but based on customer feedback, you can expect to pay anywhere between $750 to $1,250 per window for an installation with Andersen. Getting a free quote on its website is the best way to get more accurate pricing information.

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. Aeroseal has about 23 years of experience in the window replacement sector. The company has hundreds of positive reviews from customers online.
It has established itself as a company that installs windows and doors at businesses across the Eastern U.S.
Energy Efficiency of Aeroseal Windows WindowsAeroseal Windows is an Energy Star partner and offers a variety of energy-efficient windows that are Energy Star certified. Note that not all of the company’s windows are Energy Star certified, so be sure to mention that you want energy-efficient windows to your Aeroseal representative when inquiring about services.
How much does Aeroseal Windows cost in Alexandria?Aeroseal does not list prices on its website, but it provides high-quality windows at a competitive price point. Getting a free quote on its website is the best way to get more accurate pricing information.

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. Window Nation has about 16 years of experience in the window replacement sector. The company has hundreds of positive reviews from customers online.
It has established itself as a company that gives customers the opportunity to view products and to speak to a representative in person in its showrooms.
Energy Efficiency of Window Nation WindowsWindow Nation is an Energy Star partner and offers a variety of energy-efficient windows that are Energy Star certified. Note that not all of the company’s windows are Energy Star certified, so be sure to mention that you want energy-efficient windows to your Window Nation representative when inquiring about services.
How much does Window Nation cost in Alexandria?Window Nation does not list prices on its website, but 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. Getting a free quote on its website is the best way to get more accurate pricing information.
Please note that the following companies are national, which means the quality of the service may depend on your local crew. We have tried to remain unbiased and transparent by describing pros and cons for every provider.
More Window Companies in Alexandria
Renewal by Andersen of the Capital Region
North Bethesda, MDEducational Website
Free assessment
Good Customer Service
Price Transparency
Services Offered
Window Replacement/Installation
Bay Windows
Double-Hung
Glass Doors
Skylights
Champion Replacement Windows of Baltimore
Rosedale, MDSunrooms
Single-source accountability
Free assessment
Products made in the USA
Price Transparency
Good Customer Service
Services Offered
Double-Hung
Window Replacement/Installation
Glass Doors
Bay Windows
Window Nation
Glen Burnie, MDFree assessment
Educational Website
Price Transparency
Services Offered
Double-Hung
Triple Pane Glass
Bay Windows
Wood Frames
Window Replacement/Installation
Vinyl Frames
Glass Doors
Energy-Efficient Options
Custom Window Designs
Old Town Glass & Window Repair
Alexandria, VAPrice Transparency
Large online project gallery
Third-generation glassier
Good Customer Service
Free assessment
Affordable prices
Services Offered
Mirrors
Custom Glass
Glass Showers
Glass Repair
Glass Doors
Window Replacement/Installation
DISTRICT CAPITOL GLASS LLC
Alexandria, VAEducational Website
Good Customer Service
Price Transparency
Free assessment
Services Offered
Screen Repair
Glass Doors
Window Replacement/Installation
Mirrors
Glass Showers
Window Repair
Glass Repair
Anderson Glass Contractors - Frameless Shower Door, Glass Door in Alexandria VA
Marlow Heights, MD24-hour emergency availability
Educational Website
Custom glass services
Price Transparency
Free assessment
Free in-person consultation
Good Customer Service
Services Offered
Window Replacement/Installation
Custom Glass
Glass Repair
Mirrors
Glass Doors
Glass Showers
Tri County Windows and Siding
Vienna, VAFree assessment
Price Transparency
Educational Website
Good Customer Service
Services Offered
Custom Window Designs
Window Replacement/Installation
Double-Hung
Skylights
Bay Windows
Glass Doors
KELEMER BROTHERS REPLACEMENT WINDOWS
Silver Spring, MDFree assessment
Price Transparency
Educational Website
Services Offered
Energy-Efficient Options
Window Replacement/Installation
Advanced Window & Glass Repair, LLC
Woodbridge, VAEducational Website
Price Transparency
Good Customer Service
Timely Service
Free assessment
Services Offered
Glass Repair
Bay Windows
Glass Showers
Tempered Glass
Glass Doors
Window Repair
Fiberglass Frames
Window Replacement/Installation
Energy-Efficient Options
Vinyl Frames
Custom Glass
Mirrors
Double-Hung
Capitol Improvements - Roofing & Siding Contractor
Bowie, MDGood Customer Service
Free assessment
Price Transparency
Educational Website
Services Offered
Window Replacement/Installation
Bright Side Exteriors
Centreville, VAFree assessment
Services Offered
Glass Doors
Window Replacement/Installation
Window Repair
Home Exteriors LLC.
Manassas, VAGood Customer Service
Educational Website
Price Transparency
Timely Service
Free assessment
Services Offered
Glass Doors
Window Replacement/Installation
American Remodel
Annapolis, MDFree assessment
Good Customer Service
Price Transparency
Educational Website
Services Offered
Window Replacement/Installation
C2 Operations
Leesburg, VAFree assessment
Educational Website
Price Transparency
Services Offered
Window Replacement/Installation
Glass Doors
Double-Hung
Potomac Windows & Doors
Fredericksburg, VAPrice Transparency
Services Offered
Window Replacement/Installation
Milcon Design & Build
Waterford, VAFree assessment
Educational Website
Price Transparency
Services Offered
Glass Doors
Window Replacement/Installation
AC Matthews, Roofing & Exteriors
Towson, MDFree assessment
Energy-efficient windows
Price Transparency
All-inclusive repair and maintenance
High-quality materials
Educational Website
Good Customer Service
Services Offered
Window Replacement/Installation
Obrebski Brothers Windows and Doors
Nottingham, MDFree assessment
Financing options available
Educational Website
Family service
Lifetime guarantee
Good Customer Service
Services Offered
Energy-Efficient Options
Glass Doors
Window Replacement/Installation
Garrety Glass - Betterliving Sunrooms
Cockeysville, MDFree assessment
Good Customer Service
Timely Service
Price Transparency
Educational Website
Services Offered
Custom Glass
Bay Windows
Mirrors
Glass Doors
Glass Repair
Glass Showers
Window Replacement/Installation
Bay Area Exteriors
Easton, MDPrice Transparency
Free assessment
Educational Website
Good Customer Service
Timely Service
Services Offered
Window Replacement/Installation
Bay Windows
Calculate how much you can expect to pay for window installation and replacement in Alexandria, VA 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 Alexandria Saves You Money
There are quite a few perks of upgrading to energy-efficient windows. A few reasons you may want to consider making the change include the following:
- Save on electricity bills: According to the Department of Energy, heat gained or lost through windows accounts for about 25-30% of household energy use. Switching to energy-efficient models can help decrease that amount, therefore saving you about 12% more on your bills.
- Reduce your carbon footprint: By using less energy once switching to Energy Star certified windows, you’ll also be lowering your indirect greenhouse gas emissions by about 12%, according to Energy Star.
- Protect your valuables: Many Energy Star certified 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: The older your home is, the more likely you are to benefit from switching to energy-efficient windows. Older homes usually have windows that are outdated, drafty or maybe even damaged in some way. Upgrading your windows could help raise the value of your property if you decide to sell.
Estimated Cost of Window Replacement in Alexandria
Windows come in varying styles, purposes and shapes, so costs and services will differ remarkably based on your project. Below, we detail the average cost and services that you’ll find from window installers.
How Much Do New Windows Cost?
Typically, Alexandria homeowners can anticipate their window installations to range from $250 to $1,200. The most common installations sit at around $600. This is due to the fact that window installations are based on several factors specific to your home, including the size, material and number of windows you need to install, as well as the location of your property.
With windows, efficiency is the most important factor for most homeowners. High efficiency windows may cost more upfront, but by increasing the efficiency of your home — especially during the summer and winter — they can give you many years of energy savings. According to Energy Star, buying certified energy-efficient windows can save Alexandria homeowners $347+ each year after replacing single-pane windows.
Another factor that influences the total cost is the material you select for your frame. Aluminum frames are usually the least pricey and are sturdy and light, but they offer 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 and cost somewhere between the other two.
What Services do Window Installers Offer?
In general, there are two types of window installation services companies offer: full-frame and pocket installations.
A full-frame installation is a total window replacement. This service involves taking out the old window, the sill, and the exterior and interior trim. It also involves extra materials, including insulation and drip edges, which raise the total cost of the project. It’s also worth noting that you may have to touch up the paint surrounding the window after a full-frame installation. A pocket installation entails replacing a window without removing the whole frame, which is generally less expensive than a full-frame installation.
Your window installation company should be able to help you understand what’s best for your needs. In Alexandria, the decision will mostly be based on how old your windows are and if there’s any moisture damage. Wood can decay if not maintained properly over the years, so it’s good to have a professional examine 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
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 Alexandria
EcoWatch reviews differ from other reviews, as we assess these companies through a sustainability lens. Along with energy efficiency, we evaluated window companies all across the state and assigned rankings using the following methodology:
Service Area
Because this is a guide for Alexandria, we gave more points to companies that cover the city. There are certainly reputable providers that didn’t make our list because of the low odds that they would serve the average homeowner in Alexandria.
Work Quality
We’re certain that you’re looking for a company to do a great job installing windows. We’ve vetted each company on this list to ensure its technicians are well-qualified and that the company has gotten tons 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 customer satisfaction. Customer satisfaction may be the factor we place the most value on, as it indicates the quality of services across nearly every category, including quality of installation, quality of parts, warranty, cost, professionalism 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 gave 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 be certain that investment is well protected. Window installation companies that offer lengthy warranties for products, parts and labor rank higher with EcoWatch.
Years of Experience
Because of Alexandria’s climate, homeowners need to be wary of water damage, low efficiency and rot. We factored in local experience to reflect the ability of Alexandria window companies to prepare homes for the climate. If a company has less than 10 years of experience, it loses points in this category.
Alexandria, VA Window Replacement FAQs
How much should a window install cost?
The national average cost of installing a single window is around $600 but can range between $200 and $1,200, depending on a few different factors. The price is often 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 upfront but can save you a decent amount of money a year in energy bills.
What type of window is the most energy-efficient?
Generally, double-pane windows are more efficient than single-pane windows and windows that do not open will be more efficient than windows that do. If you want to be sure you’ll get the most energy-efficient windows, look for models with the blue Energy Star certification — they’re certified energy-efficient by the U.S. Department of Energy.
What do window installation companies do?
Window installation companies will do the entire process — from replacing old windows with brand-new ones to cleaning up after the windows have been put in place. In addition, many companies offer window manufacturing, customization and repairs.
What time of year is the best time to replace my windows?
Replacement windows can be installed at any time, but autumn might be the best season. No matter when you install them, the contractors will take steps to ensure that too much hot or cold air doesn’t get into your house, so the temperature outside doesn’t necessarily matter that much. What’s most important is that the weather should be dry.