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Koby We have a huge selection of wood and vinyl windows that you need to add aesthetic beauty to your home. Homeowners have been depending on the exceptional quality of Kobyco, Inc. for nearly 40 years to supply and install doors inside and outside of their homes. At Kobyco, our beautiful laminate closet organizers take your shelving to a new level of beauty and convenience.

Also be sure to check out our Interior Trim, Retractable Awnings, and great Home Remodeling. Kobyco has been serving the residents of Illinois and Wisconsin for almost four decades!
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Kobyco Inc. was founded on the premise that building a new home, or remodeling a current one doesn't have to be a daunting task; and we are thoroughly dedicated to that statement. Our dedication began back in 1975, when a hard-headed second-year carpenter apprentice and his wife (Gary and Janice Kobylarz) recognized that there was plenty of room for improvement where home remodeling was concerned. Truly talented craftsmen were rare and hard to find; and most of the quality products were being snapped up by high-end developers.
Vinyl replacement windows from Kobyco provides not just newness but they also provide a maintenance free window only needing washing periodically with either vinyl window cleaner or soap and water. There's no need to hire professional window cleaners. Kobyco's vinyl replacement windows are great insulators and energy efficient; and our vinyl replacement windows will keep the heat in during cold winter days.
Kobyco's wood windows are the most beautiful replacement windows when installed on your home. Kobyco's wood windows are like no other wood replacement window because they are a unique blend of wood and vinyl. The finished product will make an aesthetic statement that is far above any other replacement window.
Updating the exterior of your home is an exciting time. The result should make you fall in love with your home every time you pull in the driveway. But what if you don't know what your design style is? Let us help you find your style and determine a direction for the look of your home. When choosing an entry door, think about the level of privacy or natural light you desire in your home.
Reviews (8)
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Luminere Spa
Apr 17, 2022
I had Kobyco come out because I need to replace all the windows, not a small job nor an inexpensive one. After sending over the proposal, I knew there were going to be problems. First, he acted like my request to give a total - rather than 38 window prices individually - was so much work. Then, when I asked if they took American Express, I got a lecture about it. Sorry, but some folks actually use AmEx for large ticket items - especially since they were wanting $27k. Mike, the salesman, went on the tell me I basically wasted his time.

When I expressed my dismay and said I feel like I dodged a bullet, his reply was, "I agree." Wow. Thinking I could perhaps call and talk with the manager, Gary, was a mistake. I again got the lecture of them being in business for 38 years, yada yada. No one ever asked for AmEx, no one ever had a problem with Mike. Bottom line, I don't like being insulted when I'm simply trying to give someone nearly 30 grand.
Abby Clifford
Jun 14, 2021
10 years ago I'd of given them a 5 star. Now it would get a 0 star if I could. Service was horrible from the start. The price of product is over priced. They no longer do interior doors. It was very poor poorly handled. We took our business elsewhere.
Jay Hope
May 26, 2021
Purchase (7) windows, for a total of $7,600.00, I thought the price was high (it was the highest of the three estimates) but was sold on the quality of the windows and the touted superior customer service. They were installed and a week later the crank on the kitchen window came off, I scheduled someone from Kobyco to fix it. On the day someone from Kobyco was to come out to fix it, they had a medical emergency, and wanted to reschedule four weeks later, which is totally unacceptable.

I would have understood a delay of a day or two, even a week but nearly a month was unacceptable. I had them rescheduled for the next week after much gamesmanship, and they tried to delay me again, only I insisted and persisted. Kobyco eventually showed up at 7:15 p.m in he evening which was extremely inconvenient and late, considering they were supposed to be here at 1:00 p.m. my advise is the service is subpart, and as for the windows aside from the crank coming off the kitchen window all has been good.
Rick S.
Nov 15, 2020
Good experience with all new windows and patio door from Kobyco last fall. Had other estimates, but better price and reviews we saw for Kobyco swayed us to try, and glad we did. Very satisfied.
Vicky Masterton
Jun 24, 2020
Awesome service, incredible products! The windows are magnificent! The guys were great, the salesman was great. It was overall a fantastic experience. I highly recommend this company and their products!
Jim Huffington
Apr 07, 2020
Excellent workmanship on my new windows and storm door.a perfect match. One very nice surprise was a big drop in my heating and air conditioning bills. I expected improvements, .But a better than 20% drop in my gas and electric bills was MUCH BETTER than I expected. THANK YOU KOBYCO!
Jennifer Estell
Mar 17, 2019
The staff are very friendly and willing to answer any questions you have. The staff are not pushy for the sale and give you plenty of time to make a decision on their products. Did a great job on our new windows for our home. The workers were very kind to come on the weekend and were very professional.
Bud Reed
Jan 22, 2019
I have had nothing but great experiences with Kobyco. I had them do my home 10 years ago and I was very satisfied. They just completed another project for me and I couldn't be happier. The installers are very professional and courteous, especially Bill and his crew. A locally owned company with longtime experienced crews means you get quality.