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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!
Customers consistently praised the professionalism and courtesy of the installation teams.
Efficiency
Many reviews highlighted the quick and efficient installation process, often completed ahead of schedule.
Quality of Work
The quality of the windows and installation received high marks, with customers expressing satisfaction with the final results.
Customer Service
Overall, customer service was noted as responsive and helpful throughout the sales and installation process.
Affordability
Customers appreciated the competitive pricing and value for money compared to other companies.
TB
Travis Bell
2 days ago
1.0
Poor follow-up and execution. Previously had a good experience with window installation but recently had new doors installed. The installation appeared to be quick and easy but the installer was unable to use previous hardware that we were told could be used at time of sales consultation. Installer drilled a hole into the door and left it just filled with caulk. Used old hardware from another door as a temporary fix and said this would be resolved ASAP. I received no follow-up and it took nearly a week to get a call back. They then said they couldn't get a service tech schedule until 2 weeks later. This is inexcusable. I found a screw that would be long enough to put my hardware back in but now I find out that the hole isn't even in line with where it should have been. I would have chosen new hardware if I knew this was going to be an issue. Hardware compatibility should have been discussed at time of sale. The installer should have known before drilling a useless hole in a new door. We were not informed of this until it was too late. Now I am left with a door with a hole drilled through it and no door knob. I now will need a whole new door to fix this error.
LM
LeAnne Mahon
Dec 30, 2025
5.0
We had a new front door and back door install done. The installers were fast and courteous.
LL
Laura Little
Dec 22, 2025
5.0
Neat, clean, and finished a full day ahead of schedule!
SO
Scott Olvany
Dec 10, 2025
5.0
Quick friendly and efficient crew. Replaced 10 doublehung windows. Cleaned up and gone in 2hrs 40 minutes. The only way it could have been better is if they would have rehung the curtains and blinds for me. (Just kidding 😂 )
MB
Michele Budnovitch
Dec 2, 2025
5.0
This is the second home where I installed windows from Window World. The sales and installation process is always easy and professional. I would definitely use them again.
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.