21 Best Window Replacement Companies in Lanham, MD (2023 Reviews)
Window Companies Near Me
If you're thinking of getting new windows, our guide to the best window installation companies can help.
We analyzed all the top window installers in Lanham and selected the top 21 based on:
-
Customer reviews
-
Window replacement expertise
-
Popularity with home-owners like you
Please enter a valid 5-digit zip code!

Updated May 04, 2023
Why you can trust EcoWatch
Although eco-friendly energy sources like wind and solar are important when it comes to lowering your carbon footprint, improving your home's efficiency can also have a considerable impact on home energy conservation. Potential leaks or drafts can lower your home's energy efficiency by up to 30%, according to the Department of Energy. In Lanham, that's nearly $283 a year that you could save on your power bills after making the switch.
Fortunately, helping you save energy with efficient windows also aligns with our goals of reducing energy usage for the environment.
Unlike other sites, EcoWatch ranks window companies based on energy efficiency while also taking into consideration cost, customer satisfaction and service area.
Best Overall
Renewal by Andersen
- Great industry reputation
- Manufactures products in-house
- Member of US Green Building Council
- More expensive than competition
Best Affordability
Window World
- Low prices relative to competitors
- Large serice area
- EnergyStar Partner
- Quality of service will depend on your area
Best for Businesses
Aeroseal Windows
- Low number of customer complaints
- Many years of experience
- Manufactures products in-house
- No lifetime warranty
Best Window Replacement Companies in Lanham
The EcoWatch team researched dozens of installers that serve the Lanham area to find the best window installation companies that fit our standards. The providers mentioned in this article scored best in our categories, including energy-efficient offerings, availability, customer service, price and more.

Renewal by Andersen
-
Great industry reputation
-
Manufactures products in-house
-
Member of US Green Building Council
-
More expensive than competition
Renewal by Andersen offers the best availability in Lanham. It's a subsidiary of the Andersen Corporation, a major manufacturer of windows and doors. Andersen has around 27 years of experience in the window replacement business. Many positive reviews on customer review websites back the provider's reputation.
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 offering a variety of energy-efficient windows. Note that not all of the company's windows are Energy Star certified, so make 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 Lanham?Prices aren't mentioned 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. If you'd like more accurate information, you can receive a quote on the company's website.

Window World
-
Low prices relative to competitors
-
Large serice area
-
EnergyStar Partner
-
Quality of service will depend on your area
Window World offers windows expertise in Lanham. This window installation company has been in business since 1995 and currently serves 200 locations nationwide.
If you're looking for a company that is certified by the Environmental Protection Agency (EPA) and Energy Star and supports charities like St. Jude Children’s Research Hospital, this may be the right provider for you.
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 want Energy Star windows when inquiring.
How much does Window World cost in Lanham?While pricing is not available on Window World's website, it's known for offering some of the most affordable window installations around. Requesting a free quote on its website is the best way to get more accurate information.

Aeroseal Windows
-
Low number of customer complaints
-
Many years of experience
-
Manufactures products in-house
-
No lifetime warranty
Aeroseal Windows has the best window installation for businesses in Lanham. Aeroseal has over 23 years of industry experience, and it currently serves 13 states and Washington D.C. Many positive reviews from customers online back the company's reputation.
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 range of window types available from Aeroseal Windows, 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 Lanham?While pricing is not available on Aeroseal's website, it provides high-quality windows at a competitive price point. Requesting a free quote on its website is the best way to know for sure.

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 has the best residential windows in Lanham. It's a company that serves hundreds of thousands of homeowners, mostly in the mid-Atlantic region of the U.S. This window installation company has been operating since 2006 and currently services residents within 75 miles of its showrooms, which are in 13 states. Its reputation is backed by hundreds of positive reviews on customer review websites.
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 WindowsWindow Nation offers some Energy Star windows, but note that not all its windows are energy-efficient, so be sure to mention that you want high-quality Energy Star windows when inquiring. 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 Lanham?Window Nation doesn't have any cost information available 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. You can request a free quote on its website for more information about the cost.
We've recommended providers with good reputations, but bear in mind that these are national companies, so the quality of service may vary depending on your local crew. We have tried to remain unbiased and transparent by mentioning pros and cons for every company we reviewed.
More Window Replacement Companies in Lanham
Safety Window Glass Repair LLC
Bethesda, MD-
Price Transparency
-
Good Customer Service
-
Free assessment
-
Educational Website
Services Offered
-
Commercial Windows
-
Sliding Glass
-
Bay Windows
-
Residential Windows
-
Custom Window Designs
-
Glass Showers
-
Fast Delivery
-
Tempered Glass
-
Double-Hung
-
Full-Service Installations
VA Glass Doors and Window Repair
Bailey's Crossroads, VA-
Educational Website
-
Free assessment
-
Good Customer Service
-
Timely Service
-
Price Transparency
Services Offered
-
Sliding Glass
-
Commercial Windows
-
Tempered Glass
-
Aluminum Window Frames
-
Glass Showers
-
Fast Delivery
-
Double-Hung
-
Residential Windows
-
Custom Window Designs
Advanced Window & Glass Repair Of Falls Church
Arlington, VA-
Educational Website
-
Price Transparency
-
Timely Service
-
Free assessment
-
Good Customer Service
Services Offered
-
Bay Windows
-
Full-Service Installations
-
Sliding Glass
-
Double-Hung
-
Glass Showers
-
Commercial Windows
-
Residential Windows
-
Tempered Glass
-
Energy-Efficient Options
-
Custom Window Designs
Advanced Window & Glass Repair, LLC
Silver Spring, MD-
Good Customer Service
-
Timely Service
-
Price Transparency
-
Educational Website
-
Free assessment
Services Offered
-
Sliding Glass
-
Energy-Efficient Options
-
Residential Windows
-
Double-Hung
-
Custom Window Designs
-
Bay Windows
-
Tempered Glass
-
Full-Service Installations
-
Glass Showers
-
Commercial Windows
Thompson Creek Window Company Manufacturing Center
Upper Marlboro, MD-
Timely Service
-
Price Transparency
-
Good Customer Service
-
Educational Website
-
Free assessment
Services Offered
-
Double-Hung
-
Residential Windows
-
Custom Window Designs
-
Glass Showers
-
Sliding Glass
-
Commercial Windows
-
Energy-Efficient Options
-
Fast Delivery
Window Replacement DC - Bethesda
Bethesda, MD-
Educational Website
-
Free assessment
-
Good Customer Service
-
Price Transparency
Services Offered
-
Commercial Windows
-
Bay Windows
-
Energy-Efficient Options
-
Double-Hung
-
Glass Showers
-
Fast Delivery
-
Sliding Glass
-
Aluminum Window Frames
-
Residential Windows
-
Custom Window Designs
BGV Construction & Windows LLC
Washington, DC-
Educational Website
-
Free assessment
-
Good Customer Service
-
Price Transparency
Services Offered
-
Aluminum Window Frames
-
Double-Hung
-
Residential Windows
-
Fast Delivery
-
Glass Showers
-
Custom Window Designs
-
Energy-Efficient Options
-
Stained Glass
-
Commercial Windows
-
Sliding Glass
Medallion Security Door and Window Company
Forestville, MD-
Good Customer Service
-
Educational Website
-
Free assessment
-
Price Transparency
-
Timely Service
Services Offered
-
Glass Showers
-
Custom Window Designs
-
Residential Windows
-
Energy-Efficient Options
-
Bay Windows
-
Commercial Windows
-
Fast Delivery
-
Double-Hung
Alliance Homes Inc Window Installation
Bethesda, MD-
Good Customer Service
-
Educational Website
-
Price Transparency
-
Free assessment
-
Award-Winning
Services Offered
-
Residential Windows
-
Commercial Windows
-
Aluminum Window Frames
-
Double-Hung
-
Sliding Glass
-
Energy-Efficient Options
-
Glass Showers
-
Custom Window Designs
-
Bay Windows
Economy Glass LLC
Crofton, MD-
Educational Website
-
Free assessment
-
Award-Winning
-
Price Transparency
-
Good Customer Service
-
Timely Service
Services Offered
-
Commercial Windows
-
Custom Window Designs
-
Sliding Glass
-
Glass Showers
-
Residential Windows
-
Fast Delivery
-
Tempered Glass
Mr. Handyman of Anne Arundel and PG County
Millersville, MD-
Educational Website
-
Good Customer Service
-
Price Transparency
-
Timely Service
-
Free assessment
-
Award-Winning
Services Offered
-
Glass Showers
-
Full-Service Installations
-
Commercial Windows
-
Double-Hung
-
Residential Windows
-
Custom Window Designs
American Home Center Inc.
Beltsville, MD-
Timely Service
-
Educational Website
-
Price Transparency
-
Free assessment
-
Good Customer Service
Services Offered
-
Energy-Efficient Options
-
Custom Window Designs
-
Bay Windows
-
Residential Windows
-
Fast Delivery
-
Double-Hung
-
Sliding Glass
-
Aluminum Window Frames
Remodel Rx Premier Roofing Windows Doors Siding
Laurel, MD-
Award-Winning
-
Good Customer Service
-
Educational Website
-
Free assessment
-
Price Transparency
Services Offered
-
Double-Hung
-
Custom Window Designs
-
Sliding Glass
-
Energy-Efficient Options
-
Fast Delivery
-
Residential Windows
Metropolitan Glass Services
Washington, DC-
Educational Website
-
Price Transparency
-
Good Customer Service
-
Timely Service
Services Offered
-
Tempered Glass
-
Sliding Glass
-
Commercial Windows
-
Residential Windows
-
Custom Window Designs
-
Double-Hung
-
Glass Showers
DC Glass Doors And Window Repair
601 13th St NW Suite 900, DC-
Educational Website
-
Free assessment
-
Price Transparency
-
Good Customer Service
Services Offered
-
Glass Showers
-
Commercial Windows
-
Fast Delivery
-
Sliding Glass
-
Residential Windows
-
Tempered Glass
-
Custom Window Designs
-
Double-Hung
Quality Window & Door Inc
Beltsville, MD-
Educational Website
-
Price Transparency
-
Free assessment
-
Good Customer Service
Services Offered
-
Custom Window Designs
-
Residential Windows
-
Commercial Windows
-
Fast Delivery
-
Aluminum Window Frames
-
Sliding Glass
-
Double-Hung
Home Services at The Home Depot
Columbia, MD-
Free assessment
-
Good Customer Service
-
Price Transparency
-
Educational Website
Services Offered
-
Double-Hung
-
Glass Showers
-
Aluminum Window Frames
-
Commercial Windows
-
Residential Windows
-
Custom Window Designs
-
Bay Windows
-
Fast Delivery
-
Stained Glass
Safety Glass & Doors
Washington, DC-
Educational Website
-
Good Customer Service
-
Price Transparency
-
Free assessment
Services Offered
-
Fast Delivery
-
Tempered Glass
-
Custom Window Designs
-
Sliding Glass
-
Double-Hung
-
Residential Windows
-
Glass Showers
-
Commercial Windows
Metropolitan Window & Glass Repair
Kensington, MD-
Good Customer Service
-
Price Transparency
-
Educational Website
-
Timely Service
Services Offered
-
Sliding Glass
-
Tempered Glass
-
Glass Showers
-
Commercial Windows
-
Fast Delivery
-
Double-Hung
-
Custom Window Designs
-
Residential Windows
Select Glass & Windows Inc
Arlington, VA-
Price Transparency
-
Free assessment
-
Educational Website
-
Timely Service
-
Good Customer Service
-
Award-Winning
Services Offered
-
Double-Hung
-
Glass Showers
-
Fast Delivery
-
Commercial Windows
-
Residential Windows
-
Custom Window Designs
Window Expert
Crofton, MD-
Educational Website
-
Good Customer Service
-
Price Transparency
-
Free assessment
Services Offered
-
Energy-Efficient Options
-
Commercial Windows
-
Residential Windows
-
Custom Window Designs
-
Double-Hung
-
Sliding Glass
-
Fast Delivery
-
Bay Windows
How Installing Energy-Efficient Windows in Lanham Saves You Money
By upgrading to energy-efficient windows, you and your family can take advantage of several benefits, such as:
- 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 potentially even damaged in some way. Updating your windows could help raise the value of your home if you decide to sell.
- 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.
- 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 your furniture, carpet and other valuables from fading.
- Save on electricity bills: The Department of Energy estimates that heat gained or lost via windows makes up about 25-30% of residential energy use. Upgrading to energy-efficient windows can help decrease that number, which helps you save more on your bills.
Estimated Cost of Window Replacement in Lanham
Each window replacement company provides varying services and has varying price points depending on several factors.
How Much Do New Windows Cost?
The national average cost to replace a single window is about $600 but can range anywhere from $200 to $1,200. But prices 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 carry a higher price tag.
With windows, efficiency is one of the most important factors for most homeowners. Windows with higher efficiency may cost more initially, but by increasing the efficiency of your home — particularly during the summer and winter — they can give you decades of energy savings. According to Energy Star, buying certified energy-efficient windows can save Lanham homeowners $283+ per year after replacing single-pane windows.
We advise requesting free quotes from multiple window companies to find the right windows and the company that works best for your budget.
What Services do Window Installers Offer?
In general, there are two kinds of window installation services you can get: full-frame and pocket installations.
A full-frame installation replaces the complete window, including the sill, frame, trim and the window panes. As this type of installation requires more time, it will cost more than a pocket installation. A pocket installation involves replacing a window without replacing the frame. So, 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 type of installation you need, you can consult with your provider and get their advice. The decision mostly depends on the age of your window frames and if there's any damage present.
Best Overall
Renewal by Andersen
- Great industry reputation
- Manufactures products in-house
- Member of US Green Building Council
- More expensive than competition
Best Affordability
Window World
- Low prices relative to competitors
- Large serice area
- EnergyStar Partner
- Quality of service will depend on your area
Best for Businesses
Aeroseal Windows
- Low number of customer complaints
- Many years of experience
- Manufactures products in-house
- No lifetime warranty
How We Choose the Best Window Installers in Lanham
EcoWatch differs from other reviewers since we're examining these companies through a sustainability lens. We have assessed the top window replacement companies in Lanham primarily 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 electricity 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 Lanham, we paid more attention 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 Lanham.
Work Quality
We're willing to bet that you're looking for a company to do a great job installing windows. We've vetted each company featured on this list to ensure its contractors are well-qualified and that the company has received tons of positive customer feedback to vouch for its service.
Customer Reviews
We analyzed trends in recent customer feedback to find the companies with the most customer satisfaction. Customer satisfaction may be the most important factor, as it reflects the quality of services across most other categories, including quality of parts, quality of installation, warranty, cost, professionalism and more.
Cost
This one is a give-and-take: as with most services, cheap window installation companies are not going to provide the most quality service. Still, we want to make sure we're highlighting companies that provide a spectrum of price and financing options so they're accessible to most homeowners.
Warranty
As discussed, windows are a significant investment, so you'll want to 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 earn higher rankings by our standards. We like to see at least ten years of experience.
Lanham, MD Window Replacement FAQs
What is the average cost to install new windows in a home?
The typical cost to replace a window ranges from $450 to $650. There are several factors that influence how much it costs, which include the number of windows, how energy-efficient the windows are, your property's location, the materials used in designing the windows, styles and sizes of windows and local labor costs.
What type of window is the most energy-efficient?
Generally, double-pane windows will be more efficient than single-pane windows and windows that don't open will be more efficient than windows that do. To be sure you're getting the most energy-efficient windows, look for models with the blue Energy Star certification — this means they're certified energy-efficient by the U.S. Department of Energy.
Can you install your own windows?
If you're handy and know how to replace a window, you may be able to install your own windows. But if you don't have the time or skills, we don't recommend doing it on your own.
How long does window installation take?
Since the average installation time of a window is 30 minutes, around 16 windows can be installed in an 8-hour work day.
What time of year is the best time to replace my windows?
Replacement windows can be installed during any season, but autumn might be best. Regardless of when you install them, the contractors will take steps to ensure that too much hot or cold air doesn't get into the house, so the temperature outside doesn't necessarily matter that much. What's most important is that the weather should be dry.