Window Services in Rancho Cucamonga, CA

“Our company has worked with Diamon - Fusion International for several years. We have found their products to be superior among the "surface protection" products and we have used them all. Customer service is top notch! Very professional. We would highly recommend this company and their products!”

“Fusion Windows provided complete upgrade of windows and sliding doors for our two story building with 32 units. They were able to meet their deadline to complete the project on time and on the budget. The crew were knowledgeable and courteous. It was a pleasure working with Fusion Windows & Doors.”

“Mark was friendly and professional. He answered my questions very well. He also was available for follow up questions and concerns.”

“We finally decided to replace our 25 year old windows and sliders. This was not an easy decision considering we have 33 windows and 3 sliding glass doors. We had 3 different companies come out and give us information and estimates. Although all estimates were comparable in price, Michael Lewis (sales) far surpassed the others with his knowledge and experience. He provided us details and recommendations that suited our needs perfectly. He has a wonderful attitude and made this process go very smoothly. Since Ameristar manufactures their own windows, and their factory is located in Riverside, I was invited to take a tour before deciding. I met with Maribel who gave me a tour. What a treat to see American made products being manufactured right in my own home town. I was sold! My beautiful new windows were completed and installed exactly as proposed. The installers were very professional and it was obvious they know windows and love what they do. Once again, Michael Lewis was outstanding in over seeing the project. He was on-site during the installation and clean up. He even jumped in and helped out. He definately provided us great customer service and went well above his expected job duty. If you are looking to replace windows, give Ameristar a call. You will be so glad you did!”

“Fantastic service from a top team! Their solar protection film really changed the look and feel of our home. Thank you guys”

“Very professional and reliable! My window looks amazing and we are extremely happy with the way it turned out! Would definitely use Tree Windows in the future!”

“I am so glad to have done the window replacements for master bedroom. I wish that I had known about your product and service long ago.”

“Great company, great staff and great product, I will be using them for every project. Thanks again for all your help.”

“We had such a positive experience with Blackbird Building Supply. They helped us select our fiberglass windows and were very patient through the process, as there were many decisions to be made. They were responsive and professional and I have already recommended them to a neighbor. Do not hesitate to hire them - they are great!”

“We recently purchased a new home and contacted Air Tech to figure out how to install large sliding screens. The owner herself and her installer came out to show us how it could be done and explained exactly how ihey would look and work. That was followed up by a quote and an installation date. I would highly recommend using Air Tech if you want professional and timely service at a very fair price. Paula DeMars The Coach.”