20 Best Window Companies in Manassas, VA (2023 Reviews)
Are you looking to replace your windows? Our list of the best window installation companies can help you narrow down which one to pick.
We analyzed all the top-rated window companies in Manassas and selected the best 20 based on:
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Customer reviews
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Window installation expertise
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Popularity with home-owners like you
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Updated September 15, 2023
Why you can trust EcoWatch
A guide on the top window installation companies in Manassas may not seem like the most interesting article on the EcoWatch site, but trust us, windows impact your life more than you might think. Traditional or damaged windows could lead to spending more on energy bills during the winter or summer months.
Replacement windows improve your home's insulation, not only making you and your family more comfortable during the summer and winter, but also saving you money and helping the environment.
Efficient windows are particularly important in Manassas, 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 $359 each year.
Best Availability
Renewal by Andersen
- Great industry reputation
- Member of US Green Building Council
- Manufactures products in-house
Window Veteran
Window World
- EnergyStar Partner
- Wide variety of products and services
- Lifetime Warranty
Best Window Installation & Replacement Companies in Manassas
The EcoWatch Reviews team evaluated dozens of window installation companies in Manassas to find the top ones for our readers. The installers we've included in this article scored best in our categories, including energy-efficient offerings, price, customer service, availability and more.

Window World
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EnergyStar Partner
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Large serice area
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Low prices relative to competitors
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Great industry reputation
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Lifetime warranty
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Quality of service will depend on your area
Window World has windows expertise in Manassas. It's the largest window replacement company in the country, known for its vinyl windows and affordability. Window World has been in the window installation business for about 27 years.
It 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 has some Energy Star windows, but note that not all its windows are energy-efficient, so make sure you mention that you want Energy Star windows when inquiring. 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 Manassas?Window World doesn’t have any prices available on its website, but it's known for offering some of the most affordable window installations around. The best way to get more accurate pricing information is to ask for a free quote from the company.

Renewal by Andersen
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Great industry reputation
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Award-winning company
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Member of US Green Building Council
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Manufactures products in-house
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No lifetime warranty
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More expensive than competition
Renewal by Andersen provides the best availability in Manassas. It's a subsidiary of the Andersen Corporation, a major manufacturer of windows and doors. Andersen has been in the window installation business for about 27 years. The provider has plenty of positive reviews from customers online.
It 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 offering a variety of energy-efficient windows. Note that not all of the company’s windows are Energy Star certified, so make sure to ask your Andersen representative when inquiring about services.
How much does Renewal by Andersen cost in Manassas?Pricing details are not available on Andersen’s website, as the cost of window installment varies greatly based on how many and what type(s) of windows you need. However, 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 know for sure is to receive a free quote from the company.

Aeroseal Windows
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Many years of experience
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Great industry reputation
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Low number of customer complaints
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Manufactures products in-house
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Custom Designs
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No lifetime warranty
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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 provider has 23 years of experience in the windows industry, and it has become one of the most respected companies in Manassas. Its reputation is backed by hundreds of positive reviews on customer review websites.
You may want to consider choosing Aeroseal if you're interested in a installer that installs windows and doors at businesses across the Eastern U.S.
Energy Efficiency of Aeroseal Windows WindowsAeroseal Windows is an Energy Star partner offering 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 ask your Aeroseal representative when inquiring about services.
How much does Aeroseal Windows cost in Manassas?While prices are not available on Aeroseal’s website, it provides high-quality windows at a competitive price point. You can request a free quote on its website for more information about pricing.

Universal Windows Direct
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Makes charitable contributions
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Manufactures products in-house
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Wide variety of products and services
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Lifetime warranty
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Limited service area
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Some installations carried out by third-party contractors
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Quality of service will depend on your area
Universal Windows Direct provides the best warranty in Manassas. It's a company that has grown immensely since its inception in 2002, and now has several franchise dealers nationwide. Universal has been in the window installation business for about 20 years. The provider has plenty of positive reviews from customers online.
It has an industry-leading warranty covering products, parts and workmanship for life.
Energy Efficiency of Universal Windows Direct WindowsUniversal Windows Direct is an Energy Star partner offering a variety of energy-efficient windows. Note that not all of the company’s windows are Energy Star certified, so make sure to ask your Universal representative when inquiring about services.
How much does Universal Windows Direct cost in Manassas?Pricing details are not available on Universal’s website, as the cost of window installment varies greatly based on how many and what type(s) of windows you need. However, installations typically range from $225 to $425 per window based on customer feedback. That makes Universal Windows Direct more of a budget-friendly option for window repair and replacements. The best way to know for sure is to receive a free quote from the company.

Window Nation
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Award-winning company
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Manufactures products in-house
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Custom designs
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Wide variety of products and services
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Installation not covered by warranty
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Limited service area
Window Nation provides the best residential windows in Manassas. It's a company that serves hundreds of thousands of homeowners, mostly in the mid-Atlantic region of the U.S. Window Nation has been in the window installation business for about 16 years. The provider has plenty of positive reviews from customers online.
It 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 offering a variety of energy-efficient windows. Note that not all of the company’s windows are Energy Star certified, so make sure to ask your Window Nation representative when inquiring about services.
How much does Window Nation cost in Manassas?Pricing details are not available on Window Nation’s website, as the cost of window installment varies greatly based on how many and what type(s) of windows you need. However, 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 know for sure is to receive a free quote from the company.
We've recommended companies with good reputations, but note that these are national companies, so the quality of service may depend on your local crew. We have tried to stay unbiased and transparent by listing pros and cons for every company reviewed.
More Window Companies in Manassas
Renewal by Andersen of the Capital Region
Fairfax, VA-
Good Customer Service
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Price Transparency
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Educational Website
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Free assessment
Services Offered
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Commercial Windows
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Window Replacement
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Stained Glass
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Custom Window Designs
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Double-Hung
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Residential Windows
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Sliding Glass
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Glass Showers
Window World of Washington DC
Chantilly, VA-
Good Customer Service
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Timely Service
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Price Transparency
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Free assessment
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Educational Website
Services Offered
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Window Replacement
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Residential Windows
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Bay Windows
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Custom Window Designs
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Sliding Glass
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Fast Delivery
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Double-Hung
Window Nation
Lorton, VA-
Educational Website
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Price Transparency
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Good Customer Service
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Free assessment
Services Offered
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Double-Hung
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Window Replacement
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Custom Window Designs
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Stained Glass
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Sliding Glass
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Bay Windows
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Energy-Efficient Options
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Residential Windows
American Home Contractors
Chantilly, VA-
Educational Website
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Price Transparency
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Good Customer Service
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Free assessment
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Timely Service
Services Offered
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Glass Showers
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Commercial Windows
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Custom Window Designs
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Residential Windows
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Aluminum Window Frames
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Window Replacement
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Fast Delivery
Beyond Exteriors
Chantilly, VA-
Price Transparency
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Free assessment
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Timely Service
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Educational Website
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Good Customer Service
Services Offered
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Window Replacement
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Custom Window Designs
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Fast Delivery
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Residential Windows
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Sliding Glass
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Commercial Windows
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Double-Hung
Universal Windows Direct of Northern Virginia
Chantilly, VA-
Free assessment
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Educational Website
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Price Transparency
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Good Customer Service
Services Offered
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Custom Window Designs
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Energy-Efficient Options
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Glass Showers
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Window Replacement
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Residential Windows
J.S. Jackson Construction Inc.
Nokesville, VA-
Free assessment
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Timely Service
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Good Customer Service
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Price Transparency
Services Offered
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Window Replacement
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Double-Hung
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Energy-Efficient Options
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Sliding Glass
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Custom Window Designs
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Bay Windows
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Aluminum Window Frames
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Fast Delivery
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Residential Windows
RIBA Construction, LLC
Fairfax, VA-
Educational Website
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Price Transparency
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Good Customer Service
Services Offered
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Commercial Windows
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Custom Window Designs
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Residential Windows
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Window Replacement
Global Glass Pro
VA 20152, VA-
Educational Website
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Price Transparency
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Free assessment
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Good Customer Service
Services Offered
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Window Repair
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Fast Delivery
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Sliding Glass
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Custom Window Designs
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Residential Windows
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Glass Showers
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Double-Hung
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Window Replacement
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Commercial Windows
Potomac Glass Pro
Woodbridge, VA-
Free assessment
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Price Transparency
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Good Customer Service
Services Offered
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Residential Windows
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Commercial Windows
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Glass Showers
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Window Replacement
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Tempered Glass
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Custom Window Designs
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Sliding Glass
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Double-Hung
Nu Look Roofing, Siding, and Windows
Fairfax, VA-
Educational Website
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Good Customer Service
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Free assessment
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Price Transparency
Services Offered
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Window Replacement
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Fast Delivery
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Energy-Efficient Options
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Commercial Windows
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Custom Window Designs
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Stained Glass
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Residential Windows
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Sliding Glass
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Aluminum Window Frames
Adelphia Exteriors
Springfield, VA-
Price Transparency
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Free assessment
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Good Customer Service
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Timely Service
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Educational Website
Services Offered
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Sliding Glass
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Custom Window Designs
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Double-Hung
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Fast Delivery
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Window Replacement
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Commercial Windows
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Stained Glass
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Residential Windows
Advanced Window & Glass Repair, LLC
Woodbridge, VA-
Free assessment
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Educational Website
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Timely Service
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Price Transparency
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Good Customer Service
Services Offered
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Full-Service Installations
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Window Repair
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Tempered Glass
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Double-Hung
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Bay Windows
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Window Replacement
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Energy-Efficient Options
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Custom Window Designs
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Commercial Windows
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Residential Windows
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Glass Showers
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Sliding Glass
Windows On Washington Ltd
Sterling, VA-
Price Transparency
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Timely Service
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Educational Website
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Free assessment
Services Offered
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Custom Window Designs
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Window Replacement
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Double-Hung
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Commercial Windows
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Residential Windows
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Energy-Efficient Options
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Sliding Glass
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Bay Windows
The Window Man
Fairfax, VA-
Educational Website
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Free assessment
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Price Transparency
Services Offered
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Window Replacement
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Custom Window Designs
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Residential Windows
Window Replacement DC - Reston
Reston, VA-
Educational Website
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Good Customer Service
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Price Transparency
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Free assessment
Services Offered
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Aluminum Window Frames
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Glass Showers
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Window Repair
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Double-Hung
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Bay Windows
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Fast Delivery
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Window Replacement
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Sliding Glass
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Custom Window Designs
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Residential Windows
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Commercial Windows
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Energy-Efficient Options
HB Services LLC
Fairfax, VA-
Good Customer Service
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Educational Website
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Price Transparency
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Free assessment
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Timely Service
Services Offered
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Double-Hung
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Glass Showers
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Window Replacement
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Residential Windows
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Custom Window Designs
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Fast Delivery
Tri County Windows and Siding
Vienna, VA-
Free assessment
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Educational Website
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Good Customer Service
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Price Transparency
Services Offered
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Double-Hung
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Residential Windows
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Custom Window Designs
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Sliding Glass
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Window Replacement
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Bay Windows
Window Replacement DC - Springfield
Springfield, VA-
Good Customer Service
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Educational Website
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Free assessment
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Price Transparency
Services Offered
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Custom Window Designs
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Double-Hung
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Window Replacement
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Aluminum Window Frames
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Bay Windows
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Fast Delivery
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Window Repair
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Sliding Glass
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Energy-Efficient Options
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Commercial Windows
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Residential Windows
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Glass Showers
Orion Home Improvements
Lorton, VA-
Timely Service
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Free assessment
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Price Transparency
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Educational Website
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Good Customer Service
Services Offered
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Window Replacement
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Fast Delivery
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Residential Windows
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Bay Windows
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Commercial Windows
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Custom Window Designs
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Aluminum Window Frames
Calculate how much you can expect to pay for window installation and replacement in Manassas, 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 Manassas Saves You Money
By switching to energy-efficient windows, you can take advantage of several benefits, such as:
- More efficient energy usage in your home: Because the summers can get quite hot in Manassas, homeowners often rely on their air conditioner during that time. Energy-efficient windows cut back on how much cool air is lost through your windows, which makes it easier to keep your home cool.
- Protect your investment: The older your home is, the more likely it is that getting new windows will benefit you. Older homes tend to have windows that are outdated, leaky or maybe even damaged in some way. Updating your windows could help raise the value of your home if you decide to sell.
- More efficient energy use in your home: Because the winters can get very cold in Manassas, homeowners usually rely on their heater a lot. Energy-efficient windows reduce how much heat is lost through your windows, making it easier to keep your house warm.
- Reduce your carbon footprint: Because energy-efficient windows improve the insulation in your house, you can cut your indirect greenhouse gas emissions by about 12%, according to Energy Star.
Estimated Cost of Window Replacement in Manassas
When researching window installation, each company offers varying services and costs. Let's look at some average costs and services.
How Much Do New Windows Cost?
The typical cost to install one window is about $600 but can range anywhere from $200 to $1,200. How much it will cost you varies depending on several factors, including type, size, material, the location of your home, number of windows and more.
With windows, efficiency is one of the most important factors for many homeowners. Efficient windows may cost more upfront, but by increasing the efficiency of your home — particularly during the summer and winter — they can provide many years of energy savings. According to Energy Star, buying certified energy-efficient windows can save Manassas homeowners $359+ a year after replacing single-pane windows.
Asking for free quotes from several installers is the best way to find out which one will work best for your budget.
What Services do Window Installers Offer?
The first thing to ask yourself when considering a window replacement is: Do you want a full-frame installation or a pocket installation?
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 full window, including the frame, sill and trim. A pocket installation entails replacing a window without replacing the frame. This means instead of tearing out the whole window and rebuilding it, the contractor will just slide the replacement window (also called a retrofit or insert window) into the frame.
If you're still debating which kind of installation to get, you can ask your installer and get their recommendation. The decision mostly depends on how old the frames are and if there's any damage present.
Best Availability
Renewal by Andersen
- Great industry reputation
- Member of US Green Building Council
- Manufactures products in-house
Window Veteran
Window World
- EnergyStar Partner
- Wide variety of products and services
- Lifetime Warranty
How We Choose the Best Window Installers in Manassas
The EcoWatch Reviews team differs from other reviewers since we evaluate these companies through a sustainability lens. Along with energy efficiency, we reviewed each installer and ranked them using the following methodology:
Service Area
Because this is a guide for Manassas, we gave more points to companies that cover the city. There are certainly other reputable providers that didn't make the cut because of the low odds that they would serve the average homeowner in Manassas.
Work Quality
When it comes to new windows, the quality and breadth of services can often play just as important of a role in overall efficiency and performance as the brand you choose. We do give window installers higher marks if they offer high-quality products, but we also factor in workmanship as reflected in customer feedback.
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 may be the factor we place the most value on, as it reflects the quality of services across most other categories, including quality of installation, cost, quality of parts, warranty, 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 awarded higher points to companies with reasonable prices and accessible financing rather than "cheaper" services.
Warranty
As discussed previously, windows are a significant investment, so you'll want to be certain 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
Last but not least, we like to see companies that have been in the industry for quite some time. Window installation companies that have more experience will earn higher rankings by our standards. We like to see at least ten years of experience.
Manassas, VA Window Replacement FAQs
How much does a window install cost?
The national average cost to replace a single window is around $600 but can range from $200 to $1,200, depending on a few different factors. The price is usually dependent on the size of the window, the location of your property and the type and material of the window. Also, bear in mind that energy-efficient windows may cost more upfront but can save you hundreds of dollars a year in energy bills.
What kind of window is the most energy-efficient?
Generally, double-pane windows will be more efficient than single-pane windows and windows that do not open are 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 — that means they're certified energy-efficient by the U.S. Department of Energy.
When should I use a window installation company?
Unless you have experience with home improvement projects and have all of the necessary tools to replace your own windows, we recommend hiring the pros. The process of installing windows is quite involved and can take anywhere from four to six hours for one window. Although it's tempting to try to save some money by doing it yourself, hiring a professional is a faster, more efficient and much safer alternative.
Should I replace all my windows at once?
If you're upgrading your windows to save on your energy bills, replacing all of the windows at the same time is the only way to see a noticeable difference. On the other hand, if you have just one or two windows that are damaged or leaky, you can replace just those.