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RJ's Roofing and Siding is a Derry, New Hampshire exterior contractor serving homeowners who need roofing, siding, windows, doors, or decks. The company says owner and founder Raymond Rosa started the business in Derry after more than 20 years working in roofing and siding, and it offers free estimates. BBB lists the business as accredited with an A+ grade. Homeowners describe a broad mix of projects, from full roof and siding replacements to leak repairs, wind-damaged siding, window trim, roof-cap work, and support framing for a solar installation. Recent positive reviews repeatedly mention clear communication, detailed work, competitive or fair pricing, timely completion, and careful cleanup. Several older reviews add specific examples of same-day leak work, next-day storm repair, and small siding jobs that other contractors had declined. The written history is not uniformly positive. A February 2026 reviewer described recurring leaks after a roof installation and dissatisfaction with follow-up, while a May 2026 reviewer reported litter and hazardous debris around an apartment-building project. A 2025 siding customer also objected to the price quoted for a small repair. These experiences make warranty response, job-site supervision, cleanup responsibilities, and the scope and price of smaller jobs important topics to put in writing before work begins. RJ's is a practical candidate for Derry-area roofing or exterior work when direct owner communication and experience with repairs as well as larger replacements matter. Before booking, confirm the exact scope, materials, cleanup plan, warranty process, and who will handle any callback.
Just had a complete siding makeover of our house and garage with Ray at RJ's. From the very start, I knew we had the right contractor for us. Very informative of the whole process, as well as transparent of what each item will cost along the way. RJ's quote was the best of 8 contractors we had come and look at our house. With so many options of siding at different tiers, Ray used AI software to show our home with different colors and what to expect, giving some advice with his expertise (which we took) made our home look BRAND NEW. The crew that came by was thorough and kind, making quick work of the large job they had. During the job, there was some minor hiccups like a fence post (which was rotted) that broke, which they promptly fixed. As well as a mistake with caulking, which again was promptly mitigated leaving us with the most peace of mind we could ask for. By the end of the job, Ray had us walk through multiple times, looking at the smallest details before he would think about accepting the final payment. During one of the times walking through the job with Ray, he noticed a mistake a previous roofer had made prior to us moving to this address. Ray went out of his way to fix this mistake that must've been sitting there for 3 years (last time the roof was replaced). I could not recommend Ray and his crew enough. If we are to look at Window/Roofing/Siding jobs in the future, we know we won't have to shop around.
RJ and crew delivered ! Beautiful work! Detail oriented, in a timely manner. RJ communicated well, fair price! Top notch h!
Ray and crew are hard working and detail oriented. They do a great job and really strive for customer satisfaction. I would highly recommend them. In fact two of my neighbors that witnessed the transformation of my house are now going to use Ray themselves. I had a new roof and new siding. A hard working honest guy.
They came and did my apartment building. This company is the most inconsiderate and hazardous construction company I have ever seen. They left more litter in a day than I’ve seen around my apartment in 3 years combined. Bottles, cans , food, trash, shingles , sharp pieces of sheet metal, you name it. Throwing all sorts of things off the roof from 4 stories up into just parking lot and common areas with no warning. Constantly changing maze of confusing caution tape, totally disrupting all occupants of building. Several occasions witnessed workers without any ppe. Seem to have no mind or considerations for safety, or courtesy.
Great siding company RJ’S Siding and Roofing. They were very professional, with detail craftsmanship, excellent communication and thorough site cleanup. I had an amazing experience with the whole crew. The customer service was top-notch and I’ll be returning!
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1 change recorded — last scanned Sep 14, 2026.