Certified by Window World of Upstate • Mar 01, 2026
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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!
Details
Wheelchair accessible entranceAvailable
Location
Certified by Window World of Upstate • Mar 01, 2026
Certified by Window World of Upstate • Mar 01, 2026
Reviews
4.2
176 reviews
5 stars
133
4 stars
6
3 stars
5
2 stars
7
1 star
25
What are people saying?
AI-generated from recent customer reviews
Installation Quality
Many customers praised the professionalism and craftsmanship of the installation teams, noting their attention to detail and cleanliness during the process.
Customer Service
Feedback highlighted a mix of positive and negative experiences with customer service, with some praising responsiveness while others reported poor communication and follow-up.
Product Satisfaction
Overall, customers expressed satisfaction with the quality of the windows and doors, noting improvements in energy efficiency and aesthetics.
Delays and Communication Issues
Several reviews mentioned significant delays in installation timelines and a lack of proactive communication from the company regarding these delays.
Sales Experience
Customers appreciated the non-pushy sales approach and the knowledge of the sales representatives, although some reported issues with follow-up and accuracy in quotes.
RC
Richard Coates
4 days ago
5.0
Great window installation today! Everything went smoothly from quote to installation! Great pricing too!
WF
whip fowler
Feb 19, 2026
5.0
My experience with Window World was top notch. From the 1st sales visit to the install was phenomenal. My installers Daniel and David worked like clock work to complete the job. Completely satisfied customer.
IF
Ilona Fountain
Feb 15, 2026
5.0
Our experience with Window World was very good. From the initial visit with the representative to the installation everything went exactly as planned. The representative was knowledgeable and courteous. He gave us all of the information we needed to know exactly what to expect during the window replacement process. The windows are excellent quality and the price was better than that of the competitors that we compared the job with. We love our new windows and it is hard to imagine how the process could have been handled better. The installers were on time, neat, courteous, efficient, and cleaned up well before they left. We recommend Window World to anyone that is in the window replacement market. They made it all so easy.
CP
Carolina Patriot
Feb 10, 2026
5.0
There is customer satisfaction, then there is absolute 100% earning that customer by promises made and kept. We had talked to several window companies before this purchase, even prayed about which direction to take. Yet, the afternoon I placed that call to Window World, with Anna answering, we will most certainly never regret. At the beginning, the first impression was that she "cared" that our needs were met, that we were comfortable with the entire process. I admit, we were nervous before meeting Austin, then then ours concerns disappeared. My husband, a disabled veteran, being on veteran pay cements the fact that our purchasing has to be wise. Our windows were installed yesterday. There was NO mistake in choosing Window World. Laura in the scheduling calmed my nerves about the caulking (ha), the installers were professional, polite, and the work ethic was amazing. The professionalism with Window World, the customer service, the "personal concern of a job well done", the politeness, the "hassle free process", the welcoming attitude, and intention to provide perfection in a completed product, the respect given to the Veterans of the United States of America, the disciplined work ethic is why EVERYONE would greatly BENEFIT from choosing Window World, We have complete confidence that Lee Neighbors/ and his crew completed installation with precise completion. We are overwhelmingly blessed, we are so thankful. Thank you Anna/Austin, Laura, and the installers.
The Kilgore’s
DS
Dawn Schreiber
Feb 9, 2026
5.0
We noticed a temperature difference within hours. I was able to turn my heat down seven degrees. We had it set at 72 and it was so warm I turned it down to 65 and slept like a baby. We haven’t had to adjust the thermostat since. The hottest room in the house is now comfortable. It was so hot because the rest of the house was cold. Now it is comfortable in all rooms.
I highly recommend Shane and his son Hunter. They were very prompt and professional. Shane wanted to make sure we knew how to take care of our windows inside and outside. We are planning to have seven more windows done soon. I am looking forward to calling Sarah to measure the windows and Shane and Hunter putting them in.
Thank you Window World for a wonderful experience. We should have done this years ago.
Frequently Asked Questions About Window World of Upstate
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 typically 6-8 weeks from the date that the final measurements are taken. The type of window being installed and type being removed helps 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?
Most of the issues encountered by our customers are easily corrected and don't necessarily mean that there is a problem with your window. As a first step, we recommend you visit the Support page of our website for troubleshooting tips and advice on correcting common issues.
What payment methods and financing options does Window World of Upstate offer?
They accept AMERICANEXPRESS, CASH, CHECK, DISCOVER, MASTERCARD, VISA, and offer financing options subject to approved credit that vary by promotional period. Contact them for current details.
Are replacement windows installed from the inside or the outside?
Most replacement windows are installed from the outside, but in some cases installation from the inside may be necessary. Installation experts will assess your home on the day of installation and explain the best process.
Does Window World of Upstate install windows year-round and how is heat/cooling loss managed?
Yes, replacement windows are installed year-round. Installations usually take one day and crews install one window at a time to minimize heating or cooling loss. Energy savings from new windows offset any installation-related energy costs over time.
How should I prepare my house before window installation?
Remove curtains, blinds, or window treatments and have security sensors turned off by your security company. Create a clear path to the windows and remove wall decorations near windows to prevent damage during installation.
How long will it take to receive and install my replacement windows?
Typically, installation occurs 6-8 weeks after final measurements. Each window takes about 30 minutes to install, and the full job, including trim work and cleanup, usually finishes in a single day.
What warranty comes with replacement windows from Window World of Upstate?
They provide an all-inclusive limited lifetime warranty on replacement windows. Contact them directly for more details.
What happens to my old windows after installation?
Old windows are removed and properly disposed of after installation. If you want to keep your old windows or storm windows, notify the installation crew upon arrival.
What should I do if I experience any problems with my new windows?
Visit the Support page on their website first for troubleshooting tips and advice to resolve common issues, as many problems can be easily corrected without indicating a defective window.
What are the business hours of Window World of Upstate, and do they offer weekend appointments?
They are open Monday through Thursday from 8:00 AM to 5:00 PM, Friday from 8:00 AM to 4:30 PM, and closed on Saturdays and Sundays. Saturday appointments are available by appointment only.
What nearby parks or recreational areas can I visit when coming to Window World of Upstate?
You can visit Conestee Park, Conestee Nature Preserve, Raccoon Run Trail, Wenwood Soccer Complex, and Greenville Municipal Stadium nearby. These make great spots for outdoor activities before or after your visit.
Are there any nearby pet services near Window World of Upstate for customers with pets?
Yes, nearby pet services include Dog Culture Mauldin and The Canine Spa, which offer pet boarding, sitting, and grooming. Customers can conveniently arrange pet care while visiting the store.
If I need shipping or delivery services in the area, where can I go near Window World of Upstate?
Fedex Staffed is a nearby shipping center that provides freight, cargo, and food delivery services, useful for customers needing shipping assistance when in the area.
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