Brand Certified
Window World of Frederick County
4.5(113 reviews)
Certified by Window World of Frederick County • Aug 23, 2026
Business Details
8415 Progress Dr., Frederick, MD
21701, United States
Certified by Window World of Frederick County • Aug 23, 2026
(301) 663-0699
Certified by Window World of Frederick County • Aug 23, 2026
https://www.windowworldfrederickmd.com/
Certified by Window World of Frederick County • Aug 23, 2026
About
Certified by Window World of Frederick County • Aug 23, 2026
Window Installation ServiceWindow SupplierDoor SupplierSiding ContractorRoofing ContractorHome Improvement StoreWindow World
Experience Window World's unrivaled ENERGY STAR replacement windows, doors, vinyl siding, shutters and more. Contact us to schedule your free in-home or virtual quote today!
Details
- Wheelchair accessible entranceAvailable
Location
Certified by Window World of Frederick County • Aug 23, 2026
Window World of Frederick County
8415 Progress Dr., Frederick, MD
21701, United States
Hours
Certified by Window World of Frederick County • Aug 23, 2026
Monday9:00 AM - 4:00 PM
Tuesday9:00 AM - 4:00 PM
Wednesday9:00 AM - 4:00 PM
Thursday9:00 AM - 4:00 PM
Friday9:00 AM - 4:00 PM
SaturdayClosed
SundayClosed
Reviews
4.5
113 reviews
5 stars
97
4 stars
4
3 stars0
2 stars1
1 star
11
- KKKathy KleinAug 21, 20265.0We’ve had Window World windows for about 15 years and we absolutely love them. We’ve had three small issues and they always come out the same day and with this and with a lifetime warranty you can’t beat it. Thank you so much Window World.
- FOFred ObererAug 6, 20265.0Window World installed our windows & sliding door 3 years ago, and we have been very happy. Today, Adam came out as we needed an adjustment. The fix was quick and easy, and Adam was fantastic. I will absolutely buy from this company in the future due to great products, great service, and great people. They are clearly very well managed.
- EBEddie BrownAug 5, 20265.0Amazing company. They respond quickly to every need. Their work is professional, respectful and well craftsmanship. I’d recommend this company to everyone.
- AHA HishAug 4, 20265.0Very helpful, came out to fix my screen. Glad I chose them to install new windows when I moved here 🙂
- BSBarry StonestreetJul 21, 20265.0Adam contacted me on Monday to say he could be out Tuesday to replace our windows that had become foggy. Adam contacted on Tuesday at noon to advise that he might be a bit delayed due a shipment arriving late. Adam arrived only a few minutes later than we had discussed which was no problem. He was very friendly and easy to get along with on the phone and especially in person. Adam was also there to repair 2 balances. He discovered ours was an older design, because they were initially installed in 2007, but he was still able make the repairs with parts he had on his truck. During the replacement of a different window he discovered that we had another balance that needed repairs. Again Adam was able to make repairs. Adam also discovered another window that was cloudy but I had missed. He documented the part number and said he would get it ordered and when it arrived he would call schedule the replacement. We are very pleased with Window World and their warranty. Thanks again Adam for your attention to detail and professional service.
Frequently Asked Questions About Window World of Frederick County
What types of payment methods and financing do you offer?
We offer a variety of payment methods and financing options (subject to approved credit) depending on promotional period. Please contact us for more information regarding available options.
Will the replacement windows be installed from the inside or outside?
The majority of our replacement windows are installed from the outside. In some situations it may be necessary to install from the inside. On the day of installation, your installation expert will assess your unique situation and explain the process that will best suit your home.
Do you install replacement windows year-round? If so, will I lose a lot of heat/cooling at the time of installation?
Window World installs replacement windows year-round. An average installation will take only one day. Our crews install one window at a time and are trained to do what they can to minimize heating/cooling loss. The energy savings from your new windows will recover any incremental energy costs incurred during their installation many times over during their lifetime.
How can I prepare my house for my replacement windows?
Please take down curtains, blinds, or any other window treatments. Security sensors should also be removed and turned off by your security company. Please provide our installation expert with a clear path to the window(s) being replaced by moving anything that may be in the way. It is also advisable to remove all wall decorations from the walls close to the windows as they may fall during removal or installation.
How long will it take to get my replacement windows? How much time should I allow for the installation?
Since every window ordered is custom-built to fit your home and design choices, manufacturing times vary. Once delivered, the type of window being installed and the type being removed help determine the amount of time needed to complete the job. On average, each window takes about 30 minutes. Trim work and cleanup will require additional time to complete. An average job will take a single day.
What type of warranty is available for my windows?
All windows and patio doors we sell come with a manufacturer’s lifetime limited warranty and a repair labor guarantee, good for as long as you own your home! Contact us or see our warranties page for more details.
What happens to my old windows?
After installing your new replacement windows we remove all old windows from your property and dispose of them properly. If you wish to keep your old windows or storm windows, please notify the installation crew as soon as it arrives for your installation.
What do I do if there is a problem with the windows?
Most of the issues encountered by our customers are easily corrected and don't necessarily mean that there is a problem with your window. You are always welcome to contact us for help.
What payment methods and financing options are available at Window World of Frederick County?
Window World of Frederick County accepts cash, check, and offers financing options subject to approved credit and promotional periods. Contact them directly for current availability.
How are replacement windows installed by Window World of Frederick County?
Most replacement windows are installed from the outside. Installation experts assess each situation and may install from the inside if necessary, explaining the process during installation.
Does Window World of Frederick County install windows year-round and will installation cause heat or cooling loss?
Yes, they install windows year-round. Installation typically takes one day, minimizing heat or cooling loss by installing one window at a time. Energy savings from new windows offset any temporary loss.
How should I prepare my home for window installation?
Remove curtains, blinds, and window treatments. Security sensors should be disabled by your security company. Clear a path to windows and remove nearby wall decorations to prevent damage.
How long does window installation usually take at Window World of Frederick County?
Each custom-built window takes about 30 minutes to install. Including trim work and cleanup, the average job completes in one day.
What warranty coverage is provided for windows purchased?
All windows and patio doors come with a manufacturer’s lifetime limited warranty and a repair labor guarantee valid for as long as you own your home.
What happens to old windows after replacement?
Old windows are removed from your property and properly disposed of. If you wish to keep your old or storm windows, notify the installation crew upon arrival.
What should I do if I encounter a problem with my new windows?
Many issues are easily corrected and may not indicate window defects. Customers are encouraged to contact Window World of Frederick County for assistance.
What nearby services are available around Window World of Frederick County for customers?
Nearby you can find real estate agents like Jeff Cosgrove Re/Max Achievers and Tania Ramsey, Realtor, gas stations such as Rutter’s and Royal Farms, and home improvement stores like Nicolock Paving Stones - Maryland, which may be helpful in planning home projects.
How can nearby car dealerships benefit me when visiting Window World of Frederick County?
Nearby car dealers like Black Market Cars, Drive Investment Group, and Central MD International Trucks can assist customers who might need vehicle services or purchases while visiting the area for home improvement needs.
Are there nearby wellness or healthcare facilities near Window World of Frederick County to support customers?
Yes, customers can find wellness centers such as Chronic Pain & Wellness Center and Revive and Thrive Mental Wellness close by, providing convenient access to health services before or after home improvement visits.
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