Englewood, CO

I had an excellent experience with performance window company. They arrived on time and just got to work immediately. They stood out to me most, How professional and efficient their crew was. They cleaned up after themselves every step of the way, leaving no mess behind the quality of their work was outstanding , the finished result exceeded my expectations. Everything was done with great attention to detail and couldn’t be happier. How it turned out truly a job.Well done

Performance windows did a great job on our new windows. The install team was polite, courteous and very efficient. The time frame between ordering the windows and getting them installed was faster than expected which was a great surprise. I would recommend this company to anyone looking for new windows!

Performance Windows did an excellent job from start to finish. They completed the entire installation in just one day, working efficiently and professionally the whole time. The team took the time to walk us through each step, making sure we understood the process and were happy with the progress. We are especially pleased with our new sliding glass door—it looks fantastic and works perfectly. Overall, they did a great job, and we couldn’t be happier with the results. Highly recommend!

Performance windows crew did a wonderful job on our new windows! They were very respectful and tidy! So excited to see how our energy bill changes from installing these new, easy to clean windows.

I’m not sure if there are words to express how happy we are with our beautiful windows. The installers did a wonderful job. Not only that but they cleaned up all of the install mess!! Thank you so much for the professional job!!

Their team was very friendly and professional, they worked fast i thought it would take all day to get my 8 windows and 1 sliding glass door done and it only took 4 hours,  they were fast and precise. I could not be more happy with the outcome of the windows it has helped my house stay cooled down during these hot summer days and looks amazing, would recommend to anyone needing windows replaced, their company is definitely the way to go.