Highland Window & Siding Company LLC

Marc was an excellent and very responsive communicator throughout the entire process! His pricing is fair and competitive and, as promised, there were no surprises from his end. His crew was thorough, professional and meticulous. We had all of the windows in our 1948 home (and 1960s addition) replaced at once. I get pretty anxious about having work done in our home, but Marc listened well, allayed my concerns and followed through on all of his commitments to us. Our house had some surprises and complications that arose during our window install and Marc's crew was very balanced and thorough in their response and in finding solutions. His team does beautiful work, which impressed me throughout the project. We did have a couple of issues arise and Marc addressed everything right away, even personally coming by each time to make sure everything was done to our satisfaction. We give Highland Window Co. our highest recommendation!

We interviewed several companies for our siding project and settled on Highland. The decision was easy. Marc Cowan, the owner, was professional, responsive, and very helpful in defining the project and preparing us for the work to be done. Among other things, he provided addresses for past and present job sites, so that we could see his company’s work. Once our project started, he kept in regular contact with us, answering all of our questions, addressing concerns, and checking in to make sure that we were happy with how the project was progressing. Arsen, who did the detailed work (including vinyl trim for over 40 windows), is a perfectionist. We were so impressed with the quality of his work, as well as his “can do” attitude. Overall, we couldn’t be happier with how the project came out and would whole-heartedly recommend Highland to others.

The guys did a great job, even upgraded then flashing on the roof and replaced some rotted wood. Very happy with the work. Highly professional job.

Working with Marc and his team at Highland has been a dream. From start to finish Marc was professional, informative, accessible, and respectful. His pricing was fair and the quality of work was exceptional. I appreciate the level of skill and care his team has for their craft. They did an excellent job keeping us informed and went above and beyond to transform the exterior of our house. I was so relieved to find such a reliable and upstanding company to work on our house. I wish I could give more than five stars for this company! I cannot recommend them highly enough!

Marc Cowan and his Highland Window Company are the best, from quotation to completion. We are extremely happy with our new Harvey windows and the installation crew Neal, Hilton and Dean, was fantastic. We can't recommend Highland Windows highly enough! They really deserve their "A", 5-star rating. So pleased that we have also recently had them quote on siding replacement.

19 windows and door door replacement

Smooth and quick Marc was the greatest very honest and caring Made special requests that I needed.The clean up was the best Great company Please everyone give your buisness to Marc and his company Highland Windows....

Marc was a pleasure to work with. He answered any questions I had, gave me his opinion when prompted and did not try to upsell me. He was onsite for the start and completion of the project. His team was professional and extremely hard working. They covered the furniture prior to installing the windows and left the job site neat and organized. When an unanticipated problem came up Marc was very responsive and immediately addressed and mitigated the issue. He did not consider the job to be complete until I was totally satisfied. I had a question a few months after install and he showed the same attentiveness. I have recommended Highland Windows to several friends who have also been completely satisfied.

Marc did an excellent job in a short amount of time with attention to detail. The price was also reasonable. I would definitely use this company again.

Marc and the team at Highland Window Company are top notch! A few years ago they installed a bay window for me, so when it came time to do my siding I knew just who to call. Marc is professional, knowledgable and very pleasant! From the first phone call to the completion of my siding project he was engaged and hands-on. And the quality of the work performed is outstanding. Down to every little detail, Marc and his team were on it! The install was done in the time promised and the team left my property spotless. I can't recommend Highland enough, a superb local CT business!