20 Best Window Companies in Frederick, 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 Frederick 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 review of the best window replacement companies in Frederick may not seem like the most captivating article on the EcoWatch site, but trust us, windows have more of an impact on your life than you might realize. Potential leaks or drafts can cut your home’s energy efficiency by up to 30%, according to the Department of Energy. In Frederick, that’s an average of $294 per year that you could save on your power bills after making the switch.
Replacement windows improve the insulation in your home, not only making you more comfortable during the summer and winter, but also saving you some money and helping the environment.
As windows have such a great impact on your home, picking the best company for you is a big decision to make. That’s why the EcoWatch team has made this list of the top window replacement companies, so you can more easily make an informed decision.
Best Availability
Renewal by Andersen
- Great Industry Reputation
- Award-winning Company
- Member of US Green Building Council
- Manufactures products in-house
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 Frederick
The EcoWatch Reviews team evaluated dozens of companies that serve the Frederick area to find the best window installation companies that fit our standards. The installers in this article scored best in our categories, which include energy-efficient offerings, price, availability, customer service and more.
Window World
EnergyStar Partner- Large serice area
- Low prices relative to competitors
- Great industry reputation
- Lifetime warranty
Quality of service will depend on your area
Window World provides windows expertise in Frederick. It's the largest window replacement company in the country, known for its vinyl windows and affordability. Window World has around 27 years of experience in the window replacement business.
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 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’d like Energy Star windows when inquiring.
How much does Window World cost in Frederick?Prices aren’t listed on Window World’s website, but it's known for offering some of the most affordable window installations around. For more accurate information on the cost, you can receive a quote from the company.
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 Frederick. 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.
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 WindowsA 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. Not all of Andersen’s windows are Energy Star certified, so be sure to mention that you’d like Energy Star windows when inquiring.
How much does Renewal by Andersen cost in Frederick?Prices aren’t listed 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. For more accurate information on the cost, you can receive a quote from the company.
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 Frederick. 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 around 23 years of experience in the window replacement business.
It installs windows and doors at businesses across the Eastern U.S.
Energy Efficiency of Aeroseal Windows WindowsThe 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. Not all of Aeroseal’s windows are Energy Star certified, so be sure to mention that you’d like Energy Star windows when inquiring.
How much does Aeroseal Windows cost in Frederick?Prices aren’t listed on Aeroseal’s website, but it provides high-quality windows at a competitive price point. For more accurate information on the cost, you can receive a quote from the company.
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 Frederick. It's a company that serves hundreds of thousands of homeowners, mostly in the mid-Atlantic region of the U.S. Window Nation has around 16 years of experience in the window replacement business.
It gives customers the opportunity to view products and to speak to a representative in person in its showrooms.
Energy Efficiency of Window Nation WindowsEach 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. Not all of Window Nation’s windows are Energy Star certified, so be sure to mention that you’d like Energy Star windows when inquiring.
How much does Window Nation cost in Frederick?Prices aren’t listed 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. For more accurate information on the cost, you can receive a quote from the company.
We have tried to remain unbiased and transparent by listing pros and cons for every provider. Additionally, any partnerships do not influence our rankings.
More Window Companies in Frederick
Renewal by Andersen of the Capital Region
North Bethesda, MD- Good Customer Service
- Educational Website
- Price Transparency
- Free assessment
Services Offered
Bay Windows- Window Replacement/Installation
- Glass Doors
- Double-Hung
- Skylights
Champion Replacement Windows of Baltimore
Rosedale, MD- Sunrooms
- Good Customer Service
- Products made in the USA
- Free assessment
- Single-source accountability
- Price Transparency
Services Offered
- Bay Windows
- Glass Doors
- Double-Hung
- Window Replacement/Installation
Window Nation
Glen Burnie, MD- Price Transparency
- Educational Website
- Free assessment
Services Offered
- Wood Frames
- Double-Hung
- Custom Window Designs
- Triple Pane Glass
- Bay Windows
- Energy-Efficient Options
- Window Replacement/Installation
- Vinyl Frames
- Glass Doors
Milcon Design & Build
Waterford, VA- Free assessment
- Price Transparency
- Educational Website
Services Offered
- Glass Doors
- Window Replacement/Installation
C2 Operations
Leesburg, VA- Educational Website
- Price Transparency
- Free assessment
Services Offered
- Double-Hung
- Window Replacement/Installation
- Glass Doors
Replacement Windows and Doors-Homerite Waynesboro
Waynesboro, PA- Free assessment
- Educational Website
- Price Transparency
- Good Customer Service
Services Offered
- Window Replacement/Installation
- Glass Doors
- Glass Repair
- Energy-Efficient Options
KELEMER BROTHERS REPLACEMENT WINDOWS
Silver Spring, MD- Price Transparency
- Educational Website
- Free assessment
Services Offered
- Window Replacement/Installation
- Energy-Efficient Options
Tri County Windows and Siding
Vienna, VA- Educational Website
- Free assessment
- Good Customer Service
- Price Transparency
Services Offered
- Window Replacement/Installation
- Glass Doors
- Custom Window Designs
- Skylights
- Double-Hung
- Bay Windows
American Awnings and Replacement Windows
Chambersburg, PA- Timely Service
- Price Transparency
- Educational Website
- Free assessment
- Good Customer Service
Services Offered
- Window Replacement/Installation
Bright Side Exteriors
Centreville, VA- Free assessment
Services Offered
- Glass Doors
- Window Replacement/Installation
- Window Repair
Garrety Glass - Betterliving Sunrooms
Cockeysville, MD- Educational Website
- Price Transparency
- Timely Service
- Good Customer Service
- Free assessment
Services Offered
- Bay Windows
- Glass Repair
- Custom Glass
- Glass Showers
- Glass Doors
- Mirrors
- Window Replacement/Installation
DISTRICT CAPITOL GLASS LLC
Alexandria, VA- Price Transparency
- Educational Website
- Good Customer Service
- Free assessment
Services Offered
- Window Replacement/Installation
- Mirrors
- Glass Doors
- Glass Repair
- Screen Repair
- Glass Showers
- Window Repair
Old Town Glass & Window Repair
Alexandria, VA- Free assessment
- Large online project gallery
- Good Customer Service
- Third-generation glassier
- Affordable prices
- Price Transparency
Services Offered
- Custom Glass
- Glass Showers
- Glass Doors
- Mirrors
- Window Replacement/Installation
- Glass Repair
Capitol Improvements - Roofing & Siding Contractor
Bowie, MD- Free assessment
- Educational Website
- Good Customer Service
- Price Transparency
Services Offered
- Window Replacement/Installation
Home Exteriors LLC.
Manassas, VA- Educational Website
- Timely Service
- Good Customer Service
- Price Transparency
- Free assessment
Services Offered
- Glass Doors
- Window Replacement/Installation
AC Matthews, Roofing & Exteriors
Towson, MD- All-inclusive repair and maintenance
- Energy-efficient windows
- Good Customer Service
- Free assessment
- High-quality materials
- Educational Website
- Price Transparency
Services Offered
- Window Replacement/Installation
Anderson Glass Contractors - Frameless Shower Door, Glass Door in Alexandria VA
Marlow Heights, MD- Educational Website
- Custom glass services
- Price Transparency
- Good Customer Service
- 24-hour emergency availability
- Free assessment
- Free in-person consultation
Services Offered
- Mirrors
- Window Replacement/Installation
- Glass Showers
- Glass Repair
- Glass Doors
- Custom Glass
Obrebski Brothers Windows and Doors
Nottingham, MD- Good Customer Service
- Free assessment
- Family service
- Educational Website
- Lifetime guarantee
- Financing options available
Services Offered
- Window Replacement/Installation
- Glass Doors
- Energy-Efficient Options
Susquehanna Valley Door and Window
York, PA- Educational Website
- Free assessment
- Price Transparency
- Good Customer Service
Services Offered
- Double-Hung
- Bay Windows
- Energy-Efficient Options
- Window Replacement/Installation
- Glass Doors
Advanced Window & Glass Repair, LLC
Woodbridge, VA- Free assessment
- Price Transparency
- Good Customer Service
- Educational Website
- Timely Service
Services Offered
- Window Repair
- Vinyl Frames
- Window Replacement/Installation
- Fiberglass Frames
- Glass Repair
- Custom Glass
- Double-Hung
- Glass Showers
- Tempered Glass
- Glass Doors
- Bay Windows
- Mirrors
- Energy-Efficient Options
Calculate how much you can expect to pay for window installation and replacement in Frederick, 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 Frederick Saves You Money
By switching to energy-efficient windows, you 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 maybe even damaged in some way. Updating your windows could help increase the value of your home if you decide to sell.
- Reduce your carbon footprint: Because energy-efficient windows improve the insulation in your home, you can cut your indirect greenhouse gas emissions by about 12%, according to Energy Star.
- Save money on energy bills: Since energy-efficient windows lower how much energy you need to heat or cool your home, they can help you save about $294 annually on your energy bills in Frederick.
- Protect your valuables: Many energy-efficient windows have low-emissivity coatings, which filter out harmful UV rays, reducing fading of your furniture, carpet and other valuables.
Estimated Cost of Window Replacement in Frederick
Windows come in varying purposes, shapes and styles, so costs and services will differ tremendously depending on your project. Below, we describe the average cost and services that you can get from window installers.
How Much Do New Windows Cost?
Typically, Frederick homeowners can anticipate their window replacements to range from $250 to $1,200. The most common installations sit at approximately $600. These numbers vary based on specific characteristics of your installation, like material, type, the location of your home, number of windows, size and more.
Keep in mind that energy-efficient windows may cost more upfront, but Energy Star estimates the upgrade will save you between $101 and $583 per year when you install single-pane windows and between $27 and $197 a year when replacing double-pane, clear glass windows. These savings vary based on your local climate, energy rates and individual home characteristics.
Requesting free quotes from multiple companies is the best way to figure out which one will work best for your budget.
What Services do Window Installers Offer?
In general, there are two kinds of window installation services companies offer: full-frame and pocket installations.
Full-frame installations are necessary when you want a new style or your window has significant rot or deterioration. With this service, your installers will replace the whole window, including the trim, sill and frame. A pocket installation means replacing a window within the existing frame, which is usually cheaper than a full-frame installation.
Your window installation company can help you decide which type of installation you need.
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 Frederick
In our search to make your home improvements easier and more eco-friendly in Frederick, EcoWatch evaluated dozens of companies before landing on these. We’ve decided to evaluate the top window replacement companies in Frederick mainly based on their energy efficient offerings, as the most sustainable option also benefits homeowners in many ways. Energy-efficient windows have been shown to cut your energy bills by hundreds of dollars. Along with energy efficiency, our rating methodology takes the following factors into consideration:
Service Area
Since this is a guide for Frederick, we gave more points to companies that serve the city. There are certainly reputable providers that didn’t make the list because they wouldn’t be able to serve homeowners in Frederick.
Work Quality
We’re willing to bet that you’re not looking for a company to do a shoddy job installing windows. We’ve vetted each installer on this list to make sure its contractors are well-qualified and that the company has gotten a lot 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 good things to say about their service from a certain company, you won’t see it featured on EcoWatch.
Cost
This one is a give-and-take: as with other services, cheap window installation companies are not going to provide the highest quality service. Still, we want to make sure we’re highlighting companies that offer a variety of price and financing options so they’re accessible to most homeowners.
Warranty
As discussed previously, windows are a considerable investment, so you’ll want to make sure that investment is well protected. Window installation companies that have lengthy warranties for products, parts and labor rank higher with EcoWatch.
Years of Experience
Because of Frederick’s climate, homeowners need to be wary of low efficiency, water damage and rot. We factored in local experience to reflect the ability of Frederick window companies to prepare homes for these issues. If a company has less than 10 years of experience, it loses points in this category.
Frederick, MD Window Replacement FAQs
What is the average cost to install windows?
The national average cost of installing one window is around $600 but can range from $200 to $1,200, based on several factors. The price is generally dependent on the type and material of the window, the size of the window and the location of your property. Also, remember that energy-efficient windows may cost more initially but can save you a decent amount of money a year in energy bills.
What type of window is the best for energy efficiency?
Generally, double-pane windows are more efficient than single-pane windows and windows that don’t open are more efficient than windows that do. If you want to be sure you’re getting the most energy-efficient windows, look for models that have the blue Energy Star certification attached to them — they’re certified energy-efficient by the U.S. Department of Energy.
Do I really have to use a window installation company?
Unless you have home repair skills and have all the necessary tools to replace your own windows, we recommend hiring a professional installer. The window installation process is quite involved and can take anywhere from four to six hours for a single window. Although it’s tempting to try to do it yourself to save money, hiring a company is a faster, more efficient and safer option.
How often should you replace windows?
Windows usually have a lifespan of around 20 to 30 years, but anytime you see damage on your windows, it’s a good idea to have an expert take a look at them to determine if they are in need of a repair or replacement.
Should I replace my windows all at the same time?
If you want to get more efficient windows and save money on your energy bills, replacing all your windows at the same time is the only way to gain that benefit. However, if you have only one or two windows that are broken or drafty, you can replace just those.