JDI Windows is a Window Installation and Window Replacement Company located in Littleton, south of Denver. They have been serving the Denver area since 1997 and have received several awards. Customers have praised JDI Windows for their affordable and high-quality service. The installation team is outstanding, respectful, clean, and communicative. They provide a fantastic job, fantastic service, and fantastic value, coming in at a great price. The windows help reduce traffic noise and the house is much quieter with a more stable temperature. Wes and team are fantastic to work with, providing excellent value and service, highly recommended.
We are extremely happy with our new windows from JDI! They replaced 10 windows for us, several of which were at difficult and dangerous heights, and the entire job was completed seamlessly. The finished product looks great, and we couldn’t be happier with the quality of the work and the final results.
Tony and his crew were fantastic throughout the entire installation. Everyone was very kind, professional, and understanding, and they handled every part of the job with care and attention to detail. We were especially impressed with how smoothly they completed some of the more challenging windows.
Overall, we had a great experience with JDI and Tony’s crew and would… read full review
Aug 2026
5.0★★★★★
JDI windows replaced ten windows, and our sliding glass door, in June of 2026. Ryan, with whom we negotiated the deal, laid out in plain terms what was to be done, the exact cost, (which is important), and the timeline it was to be done. Ryan was very attentive, and readily available during the process, and cleared up any ambiguities that occasionally arose during the build. He, and his team of installers were genuinely concerned to make sure everything was done with care, and to our satisfaction, from keeping the areas clean during removal of the old windows, and slider, to the reinstallation, of the new items, and, finally, the new outside trim, and paint touchup,… read full review
Aug 2026
5.0★★★★★
JDI was extremely easy to work with. Very upfront, and transparent with their pricing. Their installers were polite and cleaned everything up after they were done. I love working with family businesses. I would use them again.
