Full roof replacement for Norwell homes — complete tearoff, deck inspection, ice & water shield at every vulnerable point, and CertainTeed shingles installed to manufacturer spec. CertainTeed Master Craftsman certified. Google Guaranteed. 150+ five-star reviews.






Norwell’s heavy tree canopy, high property values, and freeze-thaw cycling make installation quality critical. The details determine whether the roof performs for 25+ years or starts failing in 10.
CUSTOMER FEEDBACK ・ HEAR FROM OUR CLIENTS
5.0 Stars Across 150+ Reviews
Posted on Curtis MatthewsTrustindex verifies that the original source of the review is Google. Our house in Danvers needed new siding and trim, and this was not an easy project. There were surprises once the old siding came off, but John walked us through everything calmly and professionally. The final result looks incredible and feels built to last.Posted on Joshua DixTrustindex verifies that the original source of the review is Google. Very professional operation. Clear contract, good communication, and high-quality work. Our new roof looks great and the flashing details are far better than what we had before.Posted on Imani YussifTrustindex verifies that the original source of the review is Google. We’re in Marblehead, close to the water, and needed exterior work that could actually stand up to the elements. D&G Exteriors replaced our roof and trim, and the difference in quality compared to previous work on the house is obvious.Posted on Miguel RojasTrustindex verifies that the original source of the review is Google. John took the time to explain things without talking down to us, which we really appreciated. The siding project went smoothly and the house looks brand new.Posted on Isaiah TuckerTrustindex verifies that the original source of the review is Google. We hired D&G Exteriors for new windows and couldn’t be happier. Everything operates smoothly, looks great, and the install was clean and precise. Would absolutely recommend them.Posted on Owen EllingtonTrustindex verifies that the original source of the review is Google. Five stars all around. Roof, trim, gutters all look wonderful! D&G Exteriors earned our trust and our future business.Posted on Gabriel GarrettTrustindex verifies that the original source of the review is Google. We had storm damage to our roof and needed someone we could trust. John handled everything professionally and didn’t push unnecessary repairs. The roof looks great and we feel confident it’ll hold up long term.Posted on Mielle ButlerTrustindex verifies that the original source of the review is Google. Great communication. Quality workmanship. No BS. Would hire D&G Exteriors again without hesitation.Posted on Zamer GambrellTrustindex verifies that the original source of the review is Google. We live right on the ocean in Gloucester, and the weather absolutely beats up our house — constant wind, salt spray, storms rolling in off the water. After years of patching things, we finally decided to hire D&G Exteriors for a full roof replacement and some badly needed trim repairs. I’m so glad we did. Working on a house this close to the shoreline is no simple job. The crew had to deal with strong winds almost every day, and once they pulled the old shingles off, we found sections of the roof deck that were softened from years of salt exposure. John didn’t overreact or try to turn it into a huge problem — he showed us the damage, explained what needed to be replaced, and kept everything straightforward and fair. Despite the tough conditions, the team worked cleanly and efficiently. You could tell they were used to handling challenging environments. They installed new CertainTeed shingles, repaired the compromised areas, and replaced all the rotten fascia and trim with PVC so we won’t have to worry about it again. The house looks incredible now — sharper lines, cleaner edges, and a roof that finally feels like it can handle a real coastal storm. The best part was how professional the whole process was. They kept the site tidy even with the wind constantly blowing debris around, communicated every day, and never left us guessing about what was happening next. If you live anywhere near the water and need roofing or exterior work, D&G Exteriors is absolutely the company you want. Five stars, without hesitation.Posted on brian haskinsTrustindex verifies that the original source of the review is Google. We’re in Ipswich, and hired D&G Exteriors to replace our roof and correct a long-standing issue around a valley that had leaked during heavy rain for years. Previous repairs never fully solved it. John identified the problem immediately, reworked the flashing detail, and rebuilt that section properly instead of just patching it again. Since the replacement, we’ve been through multiple hard storms with zero issues. The roof looks great, but more importantly, the problem is finally gone. Very happy with the work and the attention to detail.
Every Norwell roof replacement follows the same process — no shortcuts, no skipped steps. Here’s what’s included.

Most residential roof replacements in Norwell range from $12,000 to $35,000 depending on roof size, pitch, complexity, and any sheathing that needs replacing. Norwell’s larger homes with steep pitches, multiple dormers, and complex rooflines tend toward the higher end. We provide a detailed written estimate after inspecting the roof on site — no ballpark quotes over the phone.
Most residential roof replacements take 1–2 days of on-site work. Larger or more complex Norwell homes with steep pitches, multiple roof planes, or extensive sheathing replacement may take 2–3 days. We stage materials carefully on Norwell’s larger properties and coordinate access to minimize disruption to your property and landscaping.
We tear off to bare deck on every job — no exceptions. Going over existing shingles hides rot, traps moisture, and voids most manufacturer warranties. In Norwell, where homes sit under heavy tree canopy and deal with persistent moisture from shaded roofs, inspecting the deck is especially critical. We regularly find hidden sheathing damage that would have been buried under a layover.
We replace it. When the old shingles come off, we inspect every square foot of decking for rot, water damage, and soft spots. Any compromised sheathing gets cut out and replaced with new plywood before the underlayment and shingles go on. This is included in the project scope — we don’t charge surprise fees for reasonable amounts of sheathing replacement, and we communicate with you immediately if the scope changes significantly.
We assess the attic ventilation on every replacement and correct it if needed. Proper ridge vent, soffit intake, or both ensure the roof breathes correctly — poor ventilation is the number one cause of premature shingle failure and ice dams. Many older Norwell homes have inadequate original ventilation that we upgrade as part of the project. For Norwell’s tree-shaded roofs, ventilation is especially important.
We install CertainTeed Landmark and Landmark Pro architectural shingles — CertainTeed’s most popular residential lines. As a CertainTeed Master Craftsman contractor, we’re factory-trained to install to manufacturer spec, which qualifies every Norwell project for the strongest warranties available. We bring color samples to the consultation so you can choose in natural light against your home’s existing exterior.
Yes. The Town of Norwell requires a building permit for roof replacement. We handle the permit application, schedule all required inspections, and make sure everything meets code. You don’t need to coordinate with Town Hall — that’s all included in the project.
We’re CertainTeed Master Craftsman certified — their highest contractor level — Google Guaranteed, BBB Accredited with an A+ rating, and NRCA Affiliated. Master Craftsman requires advanced training and demonstrated installation quality. Every Norwell replacement gets the same crew, project manager, and quality standards regardless of the home’s size.