My General contractor hired Ultimate Window and Door to replace 3 fixed windows with 3 new windows that crank open and lock shut. They were installed perfectly and function beautifully. The installers were fantastic and left the place as they found it. I was told these windows are superior to Milgard. They seal well and provide insulation from both excessive heat and cold. Great product and Terrific company. I highly recommend these.

This review for Ultimate Window and Door out of Rancho Cucamonga is long overdue. My husband and I would like to thank Jay and his crew for the incredible work they did installing windows to our 1908 Redlands farmhouse. Receiving bids for our windows was an overwhelming and daunting task for my husband and me. After a horrible experience with a prior contractor, we felt nervous about hiring a window vendor. However, Jay eased our fears, and his references are outstanding. I am posting a few photos of our new windows. Ultimate Window and Door installed twenty-two new windows for us and hung up a couple of used doors we had purchased. Our remodel still needs a sufficient amount of work, but we are thrilled to have new windows. Thank you, Jay. Cheers to Ultimate Window and Door!

Working with Ultimate Window and Door was an amazingly easy experience. They were prompt and had a great attitude. Customer service has been amazing. We had our windows replaced back in April 2021 and they turned out terrific! We recently had them replace our 10 foot slider that was broken by our son and they even expedited the process to make sure we could feel safe in our home with a fully functioning. Would definitely recommend them to anyone looking for updated windows or doors.

Oh yea I'm very happy with this company, Richard and jay are very professional and personable, the installers Jose and Myra are respectful hard workers with 22 years of experience I'm impressed with how Richard went beyond my expectations to work around my schedule to get this job completed, could not find another company to get this job done as fast as was required, I'm thankful I found this company will be getting the rest of my windows done as the sliding patio door looks and operates great, thank you ultimate window company

Oh yea I'm very happy with this company, Richard and jay are very professional and personable, the installers Jose and Myra are respectful hard workers with 22 years of experience I'm impressed with how Richard went beyond my expectations to work around my schedule to get this job completed, could not find another company to get this job done as fast as was required, I'm thankful I found this company will be getting the rest of my windows done as the sliding patio door looks and operates great, thank you ultimate window company

Every step of the process was great! We are pleased with how our windows turned out and appreciate the timeliness Richard and his team followed through with installing. Definitely recommending this team to our family/friends!