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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 courteousness of the installation teams.
Quality of Work
The quality of installation and craftsmanship received high marks, with many customers expressing satisfaction with the finished results.
Communication
While many reviews highlighted good communication, there were some instances of miscommunication and delays that caused frustration for a few customers.
Cleanliness
Most customers appreciated the teams' efforts to clean up after the work was completed, leaving their properties tidy.
Customer Service
Overall, customer service was noted as a strong point, with many customers expressing gratitude for the responsiveness and helpfulness of the staff.
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Nancy Towle
Nov 17, 2025
5.0
Mike and Dylan were great. Friendly, courteous, and efficient. Iām completely happy with the quality and the installation process. Thank you.
TS
Timothy Scott
Nov 10, 2025
5.0
Zach was the best. Professional, detail-oriented, punctual, and super courteous. I would highly recommend Window World of the Green Mountains for any work.
SS
Shirley
Oct 20, 2025
5.0
Everyone has been professional, respectful, honest. Showed up on a Saturday, worked all day. Started out for windows, ended up with siding and windows. Not hard pressure sale. Nate, Josh, and team AWESOME š
LL
Louise Leitem
Oct 17, 2025
5.0
Our office had windows/doors (Brown team) and siding replaced (Gold team). It was a lot of work. I applaud Adam's team (Brown) for being so professional and respectful of our office staff and clients. They cleaned up after themselves and kept noise to a minimum when staff were on the phone. Steve's team (Gold) did a great job on the siding. They made sure our clients could still enter the building safely and complete all the final touches to make the building look and function perfectly. Thank you all for doing such a great job!!
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Tim Brisson
Oct 6, 2025
5.0
Devan and Caleb Yellow Team did a professional job replacing our 11 windows which 9 were replacement and 2 were new construction . They completed the installation of our windows on schedule and with great communication and professional installation. New moldings and trim were replaced to provide that new house look. We are extremely pleased with the function and new look of our new windows. Devan and Caleb were polite and fantastic to work with. Highly recommend Window World.
Frequently Asked Questions About Window World of the Green Mountains
What does "Any Size, Installed" mean?
The term "Any Size" refers to any size replacement Double-Hung window our manufacturer will construct. Currently this is a minimum width and height of 15" X 26" and a maximum of 48" X 78". "Installed" refers to the removal of a basic Double-Hung wooden window and installing your new Window World replacement window, using the existing wooden stops.
What types of Payment methods & 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?
Generally, replacement windows can be installed within 4-8 weeks from the date that the final measurements are taken. The type of window being installed and 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?
Window World replacement windows come with an all-inclusive limited lifetime warranty. Contact us 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?
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.
I'm overwhelmed by all the industry jargon. What do these words mean?
At Window World, it's our goal for each and every one of our customers to feel comfortable throughout their home improvement experience. We try to always explain any construction concepts in terms everyone will know when we're in the home, but we also like to make definitions available in advance. If there are any concepts you'd like to read up on as you research your options, feel free to download our Industry Terms document.
What does "Any Size, Installed" mean in your window replacement service?
"Any Size" refers to replacement Double-Hung windows from 15" X 26" up to 48" X 78". "Installed" means removing your existing basic Double-Hung wooden window and installing the new Window World window using existing wooden stops.
What payment methods and financing options are available?
We accept AMERICANEXPRESS, CASH, CHECK, DISCOVER, MASTERCARD, VISA, and offer financing options subject to approved credit. Contact us to learn about current promotions.
Will my replacement windows be installed from the inside or outside?
Most replacement windows are installed from the outside. In some cases, installation may be from the inside. The installation expert will explain the best approach on installation day.
Do you install replacement windows year-round and will I lose heat or cooling during installation?
Yes, windows are installed year-round. Installations take about one day per home, installing one window at a time to minimize heat or cooling loss. Energy savings from new windows far outweigh any temporary loss.
How can I prepare my house for window replacement installation?
Remove curtains, blinds, and window treatments; disable security sensors with your security company; clear the path to windows; and remove wall decorations near windows to prevent damage.
How long does it take to receive and install replacement windows?
Generally, windows are installed within 4-8 weeks after final measurements. Installation averages about 30 minutes per window, with typical jobs completed within a day including trim and cleanup.
What warranty do your replacement windows have?
Our replacement windows come with an all-inclusive limited lifetime warranty. Contact us for detailed warranty information.
What happens to my old windows after installation?
Old windows are removed from your property and properly disposed of. If you wish to keep them, notify the installation crew upon their arrival.
What nearby places can I visit before or after my window consultation at Window World of the Green Mountains?
Nearby you can enjoy dining at Half Pint Pizza or Halyard Brewing Co., get electric services from Cummings Electric, or visit Weird Window Brewing for some local brews, making your visit convenient and enjoyable.
Are there automotive services near Window World of the Green Mountains for any vehicle needs during my visit?
Yes, there are several nearby automotive service providers such as The Swedish Pit, Bag Riders, Vermont Custom Auto Service, Elite Auto & Truck Service & Sales, Maglaris Automotive Services, and Cam's Automotive for your automotive repairs and maintenance.
How can nearby home improvement service providers assist me alongside Window World's offerings?
Nearby businesses like Cummings Electric, Benoure Plumbing, Heating and Air Conditioning, Reliant Electric Works, E & M Mechanical Inc, and Bartlett Tree Experts offer electrical, plumbing, HVAC, and tree services that complement your home improvement projects.