20 Best Window Companies in Potomac, MD (2024 Reviews)
Are you thinking of upgrading your windows? Our list of the best window installation companies can help you choose the right one for you.
We analyzed all the top-rated window companies in Potomac 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 clean energy sources like wind and solar are important when it comes to lowering your carbon footprint, improving your house’s efficiency can also have a big impact on home energy conservation. Drafty windows can reduce your home’s energy efficiency by up to 30%, according to the Department of Energy. In Potomac, that’s nearly $294 a year that you could save on your electricity bills after making the switch.
Luckily, helping you save money with upgraded windows also aligns with our goals of conserving energy and the resources it takes to produce it.
We’ve put together a list of the best installation companies to help you in your search, so you can not only benefit from brand-new windows, but also save money on your electricity bills.
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 Potomac
The EcoWatch team assessed dozens of window installation companies across Potomac to narrow our list down to the top ones. The companies in this article scored the best in our review categories, which include energy-efficient offerings, price, local expertise, 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 provides windows expertise in Potomac. This company has 27 years of experience in the windows industry, and it has proved to be one of the most reputable companies in Potomac.
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 WindowsThere are a wide variety of window types that Window World offers, 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 Potomac?Prices aren’t displayed on Window World’s website, but it's known for offering some of the most affordable window installations around. Receiving a free quote on its website is the best way to get more accurate 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 provides the best availability in Potomac. This company has 27 years of experience in the windows industry, and it has proved to be one of the most reputable companies in Potomac.
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 WindowsThere are a wide variety of window types that Renewal by Andersen offers, 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 Potomac?Prices aren’t displayed on Andersen’s website, but based on customer feedback, you can expect to pay anywhere between $750 to $1,250 per window for an installation with Andersen. Receiving a free quote on its website is the best way to get more accurate 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 provides the best window installation for businesses in Potomac. This company has 23 years of experience in the windows industry, and it has proved to be one of the most reputable companies in Potomac.
It has established itself as a company that installs windows and doors at businesses across the Eastern U.S.
Energy Efficiency of Aeroseal Windows WindowsThere are a wide variety of window types that Aeroseal Windows offers, some of which are Energy Star products. The 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.
How much does Aeroseal Windows cost in Potomac?Prices aren’t displayed on Aeroseal’s website, but it provides high-quality windows at a competitive price point. Receiving a free quote on its website is the best way to get more accurate 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 provides the best residential windows in Potomac. This company has 16 years of experience in the windows industry, and it has proved to be one of the most reputable companies in Potomac.
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 WindowsThere are a wide variety of window types that Window Nation offers, some of which are Energy Star products. Each 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.
How much does Window Nation cost in Potomac?Prices aren’t displayed on Window Nation’s 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. Receiving a free quote on its website is the best way to get more accurate information.
Please note that the following companies are national, meaning the quality of the service may vary depending on your local team. We have tried to remain unbiased and transparent by mentioning pros and cons for each company.
More Window Companies in Potomac
Renewal by Andersen of the Capital Region
North Bethesda, MDEducational Website
Price Transparency
Good Customer Service
Free assessment
Services Offered
Bay Windows
Skylights
Double-Hung
Window Replacement/Installation
Glass Doors
Champion Replacement Windows of Baltimore
Rosedale, MDSunrooms
Good Customer Service
Free assessment
Price Transparency
Products made in the USA
Single-source accountability
Services Offered
Window Replacement/Installation
Double-Hung
Glass Doors
Bay Windows
Window Nation
Glen Burnie, MDPrice Transparency
Free assessment
Educational Website
Services Offered
Triple Pane Glass
Energy-Efficient Options
Double-Hung
Vinyl Frames
Bay Windows
Window Replacement/Installation
Custom Window Designs
Glass Doors
Wood Frames
Tri County Windows and Siding
Vienna, VAPrice Transparency
Educational Website
Good Customer Service
Free assessment
Services Offered
Glass Doors
Bay Windows
Skylights
Custom Window Designs
Window Replacement/Installation
Double-Hung
KELEMER BROTHERS REPLACEMENT WINDOWS
Silver Spring, MDFree assessment
Educational Website
Price Transparency
Services Offered
Energy-Efficient Options
Window Replacement/Installation
DISTRICT CAPITOL GLASS LLC
Alexandria, VAFree assessment
Good Customer Service
Price Transparency
Educational Website
Services Offered
Screen Repair
Window Repair
Mirrors
Glass Doors
Glass Showers
Glass Repair
Window Replacement/Installation
Old Town Glass & Window Repair
Alexandria, VAGood Customer Service
Free assessment
Price Transparency
Large online project gallery
Affordable prices
Third-generation glassier
Services Offered
Glass Showers
Glass Repair
Custom Glass
Mirrors
Window Replacement/Installation
Glass Doors
Bright Side Exteriors
Centreville, VAFree assessment
Services Offered
Window Replacement/Installation
Glass Doors
Window Repair
C2 Operations
Leesburg, VAEducational Website
Price Transparency
Free assessment
Services Offered
Double-Hung
Glass Doors
Window Replacement/Installation
Anderson Glass Contractors - Frameless Shower Door, Glass Door in Alexandria VA
Marlow Heights, MD24-hour emergency availability
Price Transparency
Educational Website
Free in-person consultation
Custom glass services
Good Customer Service
Free assessment
Services Offered
Glass Doors
Custom Glass
Glass Showers
Glass Repair
Window Replacement/Installation
Mirrors
Home Exteriors LLC.
Manassas, VAGood Customer Service
Free assessment
Price Transparency
Timely Service
Educational Website
Services Offered
Window Replacement/Installation
Glass Doors
Capitol Improvements - Roofing & Siding Contractor
Bowie, MDEducational Website
Free assessment
Price Transparency
Good Customer Service
Services Offered
Window Replacement/Installation
Milcon Design & Build
Waterford, VAEducational Website
Free assessment
Price Transparency
Services Offered
Window Replacement/Installation
Glass Doors
Advanced Window & Glass Repair, LLC
Woodbridge, VAFree assessment
Educational Website
Good Customer Service
Timely Service
Price Transparency
Services Offered
Tempered Glass
Glass Showers
Energy-Efficient Options
Mirrors
Fiberglass Frames
Custom Glass
Double-Hung
Window Replacement/Installation
Window Repair
Vinyl Frames
Glass Repair
Glass Doors
Bay Windows
American Remodel
Annapolis, MDEducational Website
Price Transparency
Free assessment
Good Customer Service
Services Offered
Window Replacement/Installation
AC Matthews, Roofing & Exteriors
Towson, MDFree assessment
All-inclusive repair and maintenance
Educational Website
High-quality materials
Energy-efficient windows
Good Customer Service
Price Transparency
Services Offered
Window Replacement/Installation
Garrety Glass - Betterliving Sunrooms
Cockeysville, MDEducational Website
Timely Service
Free assessment
Good Customer Service
Price Transparency
Services Offered
Custom Glass
Glass Repair
Mirrors
Glass Doors
Glass Showers
Bay Windows
Window Replacement/Installation
Potomac Windows & Doors
Fredericksburg, VAPrice Transparency
Services Offered
Window Replacement/Installation
Obrebski Brothers Windows and Doors
Nottingham, MDLifetime guarantee
Free assessment
Family service
Financing options available
Good Customer Service
Educational Website
Services Offered
Glass Doors
Energy-Efficient Options
Window Replacement/Installation
Replacement Windows and Doors-Homerite Waynesboro
Waynesboro, PAGood Customer Service
Educational Website
Price Transparency
Free assessment
Services Offered
Glass Doors
Window Replacement/Installation
Energy-Efficient Options
Glass Repair
Calculate how much you can expect to pay for window installation and replacement in Potomac, MD 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 Potomac Saves You Money
When you upgrade to energy-efficient windows, you may see a few benefits, such as:
- Save money on energy bills: Because energy-efficient windows decrease the amount of energy used to heat or cool your home, the switch can help you save around $294 annually on your energy bills in Potomac.
- Decrease your carbon footprint: Because energy-efficient windows improve the insulation in your house, you can reduce your carbon footprint by about 12%, according to Energy Star.
- Protect your valuables: Many energy-efficient windows have low-emissivity coatings, which not only insulate your home better, but also filter out damaging UV rays, preventing fading of your furniture, carpet and other valuables.
- Protect your investment: If you have an older home, your windows are most likely outdated. Upgrading your windows can make your home more comfortable and also help increase the value of your property if you decide to sell.
Estimated Cost of Window Replacement in Potomac
Each window installation company offers various services and has different costs depending on a few factors.
How Much Do New Windows Cost?
According to our market research, the national average cost of replacing a single window is about $600. However, window installation costs can range from $200 to $1,200 a window. But prices vary remarkably based on the size of your home, complexity of the installation, your location and the quality of the company you choose. Many window companies also provide door replacements, which will add extra costs to your project.
With windows, efficiency is one of the most important factors for many homeowners. High efficiency windows may cost more off the bat, but by increasing the efficiency of your home — especially during the summer and winter — they can provide many years of energy savings. According to Energy Star, buying certified energy-efficient windows can save Potomac homeowners $294+ a year after replacing single-pane windows.
Costs will also vary based on the material you want for your window frames. Aluminum frames are the least expensive. They’re sturdy, light and maintenance-free, but offer poor insulation. Vinyl frames are a bit more expensive and provide good insulation. Composite frames made using wood fibers encased in plastic also provide good insulation and are moderately expensive. Wood frames are the most expensive and are the most in-demand. They’re also aesthetically pleasing and provide decent insulation for your home.
What Services do Window Installers Offer?
There are generally two kinds of window replacement services: full-frame and pocket installations.
Full-frame installations involve replacing the entire window — the sill, frame, trim and all. These are typically done when you want to change the style of your window or when it has a great amount of rot or deterioration. Full-frame installations involve more time and labor and will increase overall costs. Pocket installations are simpler and won’t carry as large a bill because they entail merely replacing the window within its existing frame. But if the frame has any damage or rot, you should opt for a full-frame installation instead.
If you’re unsure which window installation service you need, your installer should be able to assist you. In general, the choice is based on factors like the age and condition of the home, the type of building material, budget and time restrictions.
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 Potomac
The EcoWatch Reviews team differs from other reviewers because we’re examining these companies through a sustainability lens. Along with energy efficiency, we analyzed each installer and ranked them based on the following methodology:
Service Area
Because this is a guide for Potomac, we gave more points to companies that serve the city. There are other reputable providers that didn’t make our list because of the low odds that they would serve the average homeowner in Potomac.
Work Quality
We’re willing to bet that you’re looking for professionals who do a great job installing windows. We’ve vetted each installer featured in our guide 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
Customer feedback is another very important review factor. If the majority of customers don’t have positive things to say about their experience with a certain installer, it won’t be featured on EcoWatch.
Cost
Cheaper windows don’t necessarily mean better windows, but we know many of our readers want to keep costs low when possible. When analyzing the prices of providers, we awarded higher points to companies with reasonable prices and accessible financing rather than “cheaper” services.
Warranty
Protecting your investment in new windows is important to many homeowners. That’s why window installation companies that provide lengthy warranties for products, parts and installation (aka workmanship) rank higher with EcoWatch.
Years of Experience
Due to Potomac’s climate, homeowners need to be wary of water damage, low efficiency and rot. We factored in local experience to reflect the ability of Potomac window companies to prepare homes for these issues. If a company has less than 10 years of experience, it loses points in this category.
Potomac, MD Window Replacement FAQs
How much does a window install cost?
The average cost of installing a single window can range between $450 and $650. There are a variety of factors that affect how much it costs, such as your property’s location, local labor costs, styles and sizes of windows, the materials used in designing the windows, how energy-efficient the windows are and the number of windows.
Which type of window should I get?
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 that have the blue Energy Star certification — that means they’re certified energy-efficient by the U.S. Department of Energy.
Can I install my own windows?
If you’re handy and have experience with installing a replacement window, it’s possible to install your own windows. But if you don’t have the time or experience, we recommend getting a professional to do it for you.
Should I replace my windows all at once?
If your windows are more than 20 years old, you probably need to replace all of them. At that point, they are typically less efficient, draftier and/or more damaged than new windows. Replacing your windows all at once will involve less paperwork and less time.