We love our windows and sliding patio doors. During the power outage 2021 and snow/ice storm they kept the temperature from dropping very low. We highly recommend Brennan’s. They were on-time, professional, great quality and teamwork. Good clean-up too!

Replacing 40-year old windows can be a challenge, which is why I selected Brennan. One doesn't replace windows every day, so it needs to be done correctly. Brennan lived up to my expectations and expertly dealt with every irregularity they encountered while replacing two sliding glass doors and 14 windows. Everything about Brennan's work was masterful, even though I selected the most affordable window they recommended. Brennan's membership in well regarded industry organizations also helped me choose Brennan from among its competitors. I love my new windows and doors and am totally pleased with the guidance Brennan provided and the work they performed. I would use Brennan again.

Replaced all windows and sliding glass doors. Friendly, courteous, rapidly repaired damaged thresholds; excellent quick installation and always maintained a clean job site. Excellent job, recommended them to a relative who also used them and was very pleased with their quality of work, responsiveness and prices. We would definitely use them again.

Excellent company, great people, top line windows and a fair price. We had every window plus our patio door replaced. We were very pleased.

Garret was super nice, very knowledgeable, and did an excellent job.

I had replaced my old French Doors with new sliding glass doors. The experience from the Sales Person to the Installer was seamless and very efficient. The price was very competitive with other companies and I love the product. I will be using them in the future to replace my large picture window.

Brennan Enterprises is a great company for windows and doors. I am extremely happy with the value of the product and my interactions with Carolyn who sold me the products and the teams that did the installations. They all were very experienced and worked until they got every detail of the installations right. I highly recommend Brennan Enterprises.

I was so very impressed with the install. I believe they went above and beyond normal efforts.

Customer said "that she just loved Pete, he was so great! And that she loved a company that does what they say they are going to do!"