Brand Certified
Window World of GSV
4.9(339 reviews)
Certified by Window World of GSV • Mar 22, 2026
Business Details
5297 Lycoming Mall Drive, Montoursville, PA
17754, United States
Certified by Window World of GSV • Mar 22, 2026
(570) 584-0280
Certified by Window World of GSV • Mar 22, 2026
https://www.windowworldgsv.com/
Certified by Window World of GSV • Mar 22, 2026
About
Certified by Window World of GSV • Mar 22, 2026
Window Installation ServiceWindow SupplierDoor SupplierSiding 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 GSV • Mar 22, 2026
Hours
Certified by Window World of GSV • Mar 22, 2026
Reviews
4.9
339 reviews
5 stars
317
4 stars
18
3 stars1
2 stars0
1 star3
- DGDarleyne GerowMar 13, 20265.0The installer was professional and answered all our questions. He showed both of us how to work the windows for easy cleaning and how to prevent someone from getting in if you leave the windows cracked fo air flow. We got 4 windows this time and still need more. We will definitely call window world again.
- TUTrent UngardMar 5, 20265.0Window world was great. I got multiple quotes and they were both the most professional and the most affordable. The in home representative was very personable and helpful and the installation team was very efficient, polite and knowledgeable. I have very old home so I was worried about their ability to do a high quality replacement but both the windows and the flashing were well done!
- MRMaureen RouppJan 29, 20265.0I would recommend Window World to anyone. They are the best. Shout out to Eric and Chris and rest of the crew. Very professional and made sure I was happy with the installation. Can tell a huge difference with my heat. They cleaned up everything when they were done. They even installed the coldest day and snow on the ground. They were troopers and very friendly
- TMTerri MooreJan 16, 20265.0My second place getting new windows installed from Window World and very happy with the whole process from start to finish.
- MOMichael OliverJan 14, 20265.0Very professional and hard working individuals. Shane and Eric are amazing workers and got the job done efficiently and and effectively. Great company I would highly recommend them to anyone. 5 stars for sure.
Frequently Asked Questions About Window World of GSV
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 types of payment methods and financing options are available at Window World of GSV?
We accept cash, check, and offer financing options subject to approved credit and promotional periods. Contact us for current financing details.
Are replacement windows installed from the inside or outside?
Most replacement windows are installed from the outside, but in some cases installation from the inside may be necessary. Our experts will assess your situation on installation day.
Does Window World of GSV install replacement windows year-round, and what about heat loss during installation?
Yes, we install windows year-round. Installations typically take one day with crews working one window at a time to minimize heating or cooling loss during the process.
How should I prepare my home for window replacement installation?
Remove curtains, blinds, and any window treatments. Security sensors should be turned off by your security company. Provide a clear path to windows and remove decorations near windows to prevent damage.
How long does it take to receive and install custom replacement windows?
Manufacturing times vary as each window is custom-built. Installation takes about 30 minutes per window, with additional time for trim work and cleanup. Most jobs are completed in a single day.
What warranty coverage comes with windows purchased from Window World of GSV?
All windows and patio doors include a manufacturer’s lifetime limited warranty and a repair labor guarantee valid as long as you own your home. More details are available on our warranties page.
What happens to my old windows after installation?
We remove and properly dispose of your old windows after installing your new ones. If you want to keep your old or storm windows, please let the installation crew know upon arrival.
How can I get help if there is a problem with my windows after installation?
Most issues are easily resolved and don’t mean your window is defective. You can always contact us for assistance and support.
What are some nearby places to Window World of GSV that customers might visit?
Nearby places include Lycoming Lawn & Garden for landscaping needs, Swope's shopping center for furniture, and First Christian Church for religious services. These locations can be convenient to visit before or after your appointment.
Are there convenient services near Window World of GSV for moving or storage needs?
Yes, AA Self Storage and U-Haul Neighborhood Dealer are close by, offering storage solutions and truck rentals to help customers during home improvement projects.
How can nearby office and business services support customers of Window World of GSV?
Nearby businesses like Lycoming Digital Copier Co and Huffman's Office Equipment provide printing and office supplies, which may be useful for contractors or customers managing renovation projects.
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