20 Best Window Companies in Friendly, MD (2025 Reviews)
If you’re thinking about getting new windows, our list of the best window installation companies can help.
We analyzed all the top-rated window companies in Friendly and selected the best 20 based on:
Customer reviews
Window installation expertise
Popularity with home-owners like you
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Why you can trust EcoWatch
A guide on the best window installation companies in Friendly may not seem like the most riveting article on the EcoWatch site, but trust us, windows impact your life more than you might think. Damaged or outdated windows can cost you in energy bills. As a matter of fact, the Department of Energy estimates that 25-30% of your home’s heat or cool air could be lost through your windows.
Installing energy-efficient windows on your property can help you save money each month on your power bills — and you can help the environment as well.
As windows are so important for your home, picking the best company for you is a big choice to make. That’s why the EcoWatch team has curated this list of the top window installation companies, so you can make an informed decision more easily.
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 Friendly
The EcoWatch team evaluated dozens of window installation companies across Friendly to narrow our list down to the best ones. We assessed the companies based on their energy-efficient offerings, local experience, coverage area, customer service, price 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 Friendly. It's 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 industry. The provider has many positive reviews from customers on online review websites.
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’s commitment to sustainability shows in its energy-efficient window offerings. 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 Friendly?Window World does not mention prices on its website, but it's known for offering some of the most affordable window installations around. You can inquire about a free quote on its website for more information about pricing.

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 Friendly. It's a subsidiary of the Andersen Corporation, a major manufacturer of windows and doors. Andersen has about 27 years of experience in the window replacement industry. The provider has many positive reviews from customers on online review websites.
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’s commitment to sustainability shows in its energy-efficient window offerings. 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 Friendly?Andersen does not mention 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. You can inquire about a free quote on its website for more information about pricing.

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 Friendly. It's 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 industry. The provider has many positive reviews from customers on online review websites.
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’s commitment to sustainability shows in its energy-efficient window offerings. 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 Friendly?Aeroseal does not mention prices on its website, but it provides high-quality windows at a competitive price point. You can inquire about a free quote on its website for more information about pricing.

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 Friendly. It's 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 industry. The provider has many positive reviews from customers on online review websites.
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’s commitment to sustainability shows in its energy-efficient window offerings. 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 Friendly?Window Nation does not mention 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. You can inquire about a free quote on its website for more information about pricing.
One thing to note is that the following companies are national, meaning the quality of customer service may depend on your local crew. We have tried to remain unbiased and transparent by listing both pros and cons for each company.
More Window Companies in Friendly
Renewal by Andersen of the Capital Region
North Bethesda, MDGood Customer Service
Educational Website
Free assessment
Price Transparency
Services Offered
Window Replacement/Installation
Bay Windows
Glass Doors
Skylights
Double-Hung
Champion Replacement Windows of Baltimore
Rosedale, MDSingle-source accountability
Sunrooms
Good Customer Service
Free assessment
Price Transparency
Products made in the USA
Services Offered
Bay Windows
Glass Doors
Window Replacement/Installation
Double-Hung
Window Nation
Glen Burnie, MDEducational Website
Price Transparency
Free assessment
Services Offered
Vinyl Frames
Window Replacement/Installation
Bay Windows
Wood Frames
Glass Doors
Custom Window Designs
Energy-Efficient Options
Triple Pane Glass
Double-Hung
Anderson Glass Contractors - Frameless Shower Door, Glass Door in Alexandria VA
Marlow Heights, MDPrice Transparency
Custom glass services
Free in-person consultation
Free assessment
Educational Website
24-hour emergency availability
Good Customer Service
Services Offered
Glass Doors
Glass Showers
Window Replacement/Installation
Custom Glass
Mirrors
Glass Repair
Old Town Glass & Window Repair
Alexandria, VAGood Customer Service
Free assessment
Affordable prices
Large online project gallery
Price Transparency
Third-generation glassier
Services Offered
Glass Repair
Window Replacement/Installation
Glass Showers
Glass Doors
Custom Glass
Mirrors
DISTRICT CAPITOL GLASS LLC
Alexandria, VAEducational Website
Good Customer Service
Free assessment
Price Transparency
Services Offered
Screen Repair
Glass Repair
Window Replacement/Installation
Glass Showers
Glass Doors
Mirrors
Window Repair
Advanced Window & Glass Repair, LLC
Woodbridge, VAFree assessment
Price Transparency
Timely Service
Good Customer Service
Educational Website
Services Offered
Energy-Efficient Options
Vinyl Frames
Glass Repair
Fiberglass Frames
Tempered Glass
Window Replacement/Installation
Window Repair
Glass Showers
Mirrors
Double-Hung
Bay Windows
Glass Doors
Custom Glass
Tri County Windows and Siding
Vienna, VAPrice Transparency
Free assessment
Educational Website
Good Customer Service
Services Offered
Window Replacement/Installation
Glass Doors
Skylights
Custom Window Designs
Double-Hung
Bay Windows
Capitol Improvements - Roofing & Siding Contractor
Bowie, MDPrice Transparency
Good Customer Service
Free assessment
Educational Website
Services Offered
Window Replacement/Installation
KELEMER BROTHERS REPLACEMENT WINDOWS
Silver Spring, MDEducational Website
Free assessment
Price Transparency
Services Offered
Energy-Efficient Options
Window Replacement/Installation
Bright Side Exteriors
Centreville, VAFree assessment
Services Offered
Glass Doors
Window Repair
Window Replacement/Installation
Home Exteriors LLC.
Manassas, VATimely Service
Good Customer Service
Free assessment
Price Transparency
Educational Website
Services Offered
Window Replacement/Installation
Glass Doors
American Remodel
Annapolis, MDFree assessment
Educational Website
Good Customer Service
Price Transparency
Services Offered
Window Replacement/Installation
C2 Operations
Leesburg, VAPrice Transparency
Free assessment
Educational Website
Services Offered
Window Replacement/Installation
Glass Doors
Double-Hung
Potomac Windows & Doors
Fredericksburg, VAPrice Transparency
Services Offered
Window Replacement/Installation
Milcon Design & Build
Waterford, VAEducational Website
Price Transparency
Free assessment
Services Offered
Glass Doors
Window Replacement/Installation
Bay Area Exteriors
Easton, MDEducational Website
Good Customer Service
Timely Service
Free assessment
Price Transparency
Services Offered
Window Replacement/Installation
Bay Windows
Obrebski Brothers Windows and Doors
Nottingham, MDFamily service
Free assessment
Lifetime guarantee
Good Customer Service
Financing options available
Educational Website
Services Offered
Window Replacement/Installation
Energy-Efficient Options
Glass Doors
AC Matthews, Roofing & Exteriors
Towson, MDAll-inclusive repair and maintenance
Energy-efficient windows
Price Transparency
Educational Website
Free assessment
High-quality materials
Good Customer Service
Services Offered
Window Replacement/Installation
Garrety Glass - Betterliving Sunrooms
Cockeysville, MDFree assessment
Good Customer Service
Timely Service
Educational Website
Price Transparency
Services Offered
Glass Showers
Window Replacement/Installation
Glass Repair
Custom Glass
Bay Windows
Glass Doors
Mirrors
Calculate how much you can expect to pay for window installation and replacement in Friendly, 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 Friendly Saves You Money
There are quite a few benefits of switching to energy-efficient windows. Some reasons you may want to consider making the switch are the following:
- Save on energy bills: The Department of Energy estimates that heat gained or lost through windows makes up about 25-30% of energy use in your home. Upgrading to energy-efficient windows can help lower that amount, which helps you save some money on your bills.
- Protect your investment: Upgrading and repairing your windows is an important part of maintaining your property and its value, especially if your home is on the older side.
- Protect your valuables: Many Energy Star certified windows have low-emissivity coatings, which filter out harmful UV rays, reducing fading of your furniture, carpet and other valuables.
- Reduce your carbon footprint: In Friendly, you can cut your indirect greenhouse gas emissions by about 249 pounds per year after you install energy-efficient windows.
Estimated Cost of Window Replacement in Friendly
Windows come in different shapes and sizes, so costs and services will differ considerably. Here are the typical costs and services that you can find from window installation companies.
How Much Do New Windows Cost?
On average, Friendly homeowners can anticipate their replacement window installations to range from $250 to $1,200. The average cost is at about $600. This is because the cost of window installations depend on several factors specific to your home, including the size, material and number of windows you need to replace, as well as where your property is located.
With windows, efficiency is one of the most important factors 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 provide decades of energy savings. According to Energy Star, purchasing certified energy-efficient windows can save Friendly homeowners $283+ each year after replacing single-pane windows.
Costs will also vary based on the material of your frame. Aluminum frames have the lowest price. They’re sturdy, light and easy to maintain, but offer poor insulation. Vinyl frames are somewhat 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 offer decent insulation for your home.
What Services do Window Installers Offer?
In regard to window replacements, in general there are two types that your provider will offer: full-frame and pocket installations.
Full-frame installations entail replacing the total window, including the sill, trim and frame. You most likely need a full-frame installation when you want to change the style of your windows or your window has considerable deterioration. Because these installations are more involved, they will raise the overall cost. A pocket installation entails installing a new window without replacing the frame. This means instead of taking out the whole unit and reinstalling it, the window installer will just put the replacement window (also called a retrofit or insert window) into the frame.
Your window installation company will be able to advise you on the best type for your project. In Friendly, the choice will mostly be influenced by how much damage there is currently and the condition of your existing frames.
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 Friendly
In our hunt to make your home improvements easier and more eco-friendly in Friendly, EcoWatch evaluated dozens of companies before deciding on these. We’ve evaluated the top window installation companies in Friendly mainly based on energy efficiency, as it’s what’s best for the environment and for you as a homeowner. Energy Star certified windows have been shown to cut your power bills by hundreds of dollars. Along with energy efficiency, our rating methodology considers the following factors:
Service Area
Because this is a guide for Friendly, we gave more points to companies that serve the city. There are certainly other reputable providers that didn’t make the list because of the low odds that they would serve the average homeowner in Friendly.
Work Quality
When selecting new windows, the quality and breadth of services can often play just as important of a role in insulation 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 trends in recent customer feedback to find the companies with the most customer satisfaction. Customer satisfaction may be the most important factor, as it indicates the quality of services across most other categories, including professionalism, quality of installation, quality of parts, warranty, cost and more.
Cost
Cheaper windows don’t necessarily mean better windows, but we know many of our readers would like to keep costs as low as 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 substantial investment, so you’ll want to be certain that investment is protected. Window installation companies that have lengthy warranties for products, parts and labor rank higher with EcoWatch.
Years of Experience
Lastly, we like to see companies that have a proven track record in the industry. Window installers that have more experience earn higher rankings by our standards. We like to see at least ten years of experience.
Friendly, MD Window Replacement FAQs
How much does window installation cost?
The average cost of replacing a single window can range between $450 and $650. There are several factors that affect how much it costs, which include styles and sizes of windows, your property’s location, local labor costs, how energy-efficient the windows are, the number of windows and the materials used in designing the windows.
What are the most common kinds of replacement windows?
The most common kinds of windows for homes are casement windows, picture windows, transom windows, double-hung and single-hung windows, awning windows, slider windows and bay windows.
When do I have to use a window installation company?
Unless you have home repair skills and have the tools needed to replace your own windows, we recommend hiring a professional installer. The process of installing windows is complicated 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 option.
What time of year should I replace my windows?
Although you can install windows any time of year, warmer weather is usually better for replacing windows. Additionally, it shouldn’t be raining, as rain can make the installation harder.
How do you know it’s time to replace your windows?
Windows have an average lifespan of about 20 to 30 years. If your windows are older than that, then they probably need to be replaced. Apart from that, if your windows have any damage on them, or they have become difficult to operate, they may need to be replaced.