4.8/5.0 Stars - 49 Reviews

Home Advisor

4.8/5.0 Stars - 33 Reviews


5/5 Rating - 28 Reviews

Angie's List

A Rating - 111 Reviews

Derek, Chris, and their crew were fantastic to work with from start to finish. Even the estimate visit was great. Derek explains everything extremely well, and they go above and beyond to ensure the roof is done right, they protect items around the perimeter of the house, and they do a superb job with clean up after the job is done. During that first visit Derek noticed that I was also hanging new shutters on the house, and he said don’t worry about doing that, we will get that for you when we do the roof. Even that part of the job looked great and coupled with the roof, has really transformed the look of our house for the better. You can’t go wrong with Derek Cook and team.

Tom Labrie

Derek Cook’s team put a new roof on our Cape Cod home in April 2023. The team was efficient, thorough, and precise in their work. Their excellent professional experience putting up a roof showed in the way they worked. Top quality products were used to assemble the roof. The roof has been tested many times since it was installed with no leaks. Our chimney also was leaded and looks great. I highly recommend using Derek Cook Roofing to get a durable long last and good looking roof!

Sandra Minnick

Derek’s crew did an outstanding, quick, efficient, clean, and excellent looking new roof install on my 6000 sq. ft. house in 2020. The crew worked quietly and were extremally courteous to us. Subsequently, and after 2 yrs , when there were some issues due to extremally high wind gusts, from Lake Winnipesaukee, I contacted Derek on a Sunday and he had a repair crew out the very next day for repair! I believe that kind of response, especially in today’s booming construction economy, is extremally notable as well as remarkable. I never hesitate to recommend his services and have much appreciation for what he has done for us.

George A. Stevens Jr.

I have had Derek do numerous jobs for me over the years, including installing a new roof. His team is always professional and their work is excellent. He is trustworthy and does exactly what he says he will do. I recommend this company without reservation.

Olivier Sakellarios

Derek and his crew did a great job doing my entire 3000 sqft roof in one day. In addition, he and his team went above and beyond by using extra shingles to re-shingle my shed. Myself and Derek also had a miscommunication on addressing a valley in my roof. He could have said sorry it was my issue for overlooking it in the quote but instead he said he would make sure it was taken care of. He did just that finding a way to get the necessary materials and installing them that day while still honoring the original quote…Great example of taking care of your customer. Also, his attention to detail was impressive as he noticed the original vents in the soffits were not pointing in the correct direction to maximize airflow. Nobody else had noticed this when providing quotes and was another significant reason for choosing Derek. Highly recommend Derek and have already passed his name onto multiple friends and will continue to do so going forward.

Rob Boucher

Derek and his crew did a great job on my roof. In and out in one day and it looks like they were never there. Roof came out Awesome! Thanks for a great job Dennis 👍

Dennis Flanagan

Very impressed with the roofing job done on my house. Derek Cook and his crew did a remarkable job completing the job in only two days. What I appreciated most was the excellent communication and attention to details. Derek was involved in every detail from on time materials to dumpster location. The crew was very efficient and hard working completing the job and cleanup to my expectations.

Tom Roy

We recently had our home and garage shingled by Derek and his crew. Flawless job from beginning to end. Complete professionals from his estimate, to his crew knocking it out in just a day. The clean up left my yard in better shape than before they started. I can’t believe how beautiful my home and garage look. Without question would recommend him to our neighbors and friends.

Trish Yaffe

Derek and his crew are wonderful, very prompt and courteous. They responded to my roofing needs very quickly and explained every step of the process. The clean up was great. This is the second time I have used them and I would highly recommend them to everyone.

Ann Newcomb

We could not have been more pleased with Derek Cook roofing. The professionalism, quality of work, on time scheduling and clean up left us in awe! The roof looks amazing, not a single nail or roofing scrap was left behind and the whole job was completed ahead of time. We would highly recommend this company!

Sheila Dempsey

Derek was a pleasure to work with. He and his crew crew did a very professional job replacing our 2200 sq.ft. roof in one day and cleaning up afterward. It looks great.

Joanne L.

Derek and the crew showed up on time, took great care of our property like it was their own, did their job proficiently, and cleaned up like they were never here. Derek also did the roof on our previous home. Would hire him again and highly recommend him.


Recently we noticed our neighbors had just gotten a new roof. After marveling over how good it came out we decided to reach out and ask for the contact info. Derek was super easy to deal with and very responsive from the start. He assisted us with real life examples to help us choose the perfect color. Not only that, the roof was completely finished in one day…

Jason Gannon

AMAZING… squeezed us in at the very end of their season (I’m pretty sure it was even after) done in under 2 days!!! Couldnt be happier!

Lisa DeCalogero Howe

We recently had our roof done by Derek Cook Construction. They did an excellent job! They showed up when they said they would and finished very quickly. Great job cleaning up as we have not found a single nail or debris from the old roof. They were very careful around our rose and rhododendron bushes as well. We would definitely recommend them!

Christina Eaton

Derek and crew were professional and did a great job replacing my roof. They made sure my property was taken care of and were meticulous in cleaning up after !

Steve Ducharme

Derek and his crew did an amazing job replacing my entire roof and shed at a very fair price! They were professional and after they cleaned up, there was no evidence they replaced my roof that day! All around, I’d hire them again in a minute.

Mary Koon

Derek Cook provided a prompt visit and quote for our large roofing job. He made great recommendations based on asking the right questions and determining our needs. He and his team worked very hard and went above and beyond my expectations for quality and price. I will definitely hire them for work in the future!

Peter Leeper

We had a great experience having our roof done by Derek Cook and his team. It was completed in one day and the yard and driveway were clean and clear of nails and debris when they finished. Great job!

Peg Thornby

Derek and his crew did a great job! Couldn’t believe how quick too, just a day (about 12 hours) from set up to clean up, all very thorough. Even made sure to cover and protect our deck from any damage while removing the old shingles. Also added some gutters and rain deflectors. All in all very efficient and the roof looks great.

Jonathan Roberts

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