Targeted roof repairs for Norwell homes — leak diagnosis, flashing failures, ice dam damage, and storm damage. We find the actual problem, fix it right, and tell you honestly whether repair or replacement is the smarter investment. Google Guaranteed. 150+ five-star reviews.






Norwell’s heavy tree canopy shades roofs year-round, trapping moisture and creating ice dam conditions every winter. Most roof leaks in town trace back to a few predictable causes — we diagnose before we repair.
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.
Norwell roofs fail for predictable reasons — age, tree canopy exposure, and freeze-thaw cycling. Here are the repairs we handle most often across the South Shore.

Most targeted roof repairs in Norwell range from $500 to $3,000 depending on the scope — a single flashing replacement or pipe boot repair is on the lower end, while extensive ice dam damage with rotted decking is on the higher end. We provide a detailed written estimate after inspecting the roof so there are no surprises.
If the roof is under 15 years old and the problem is isolated — one flashing failure, a few lifted shingles, or localized storm damage — repair is usually the right call. If the shingles are 20+ years old, showing widespread granule loss or curling, or you’ve had multiple repairs in recent years, replacement is the better long-term investment. We inspect and give you an honest recommendation.
Failed flashing is the number one cause — especially around chimneys, walls, and valleys on older Norwell homes where original flashing has corroded. Ice dams are the second most common, driven by Norwell’s heavy tree canopy and older homes with inadequate attic ventilation. Fallen branches from mature trees also cause direct damage to shingles and flashing during storms.
Yes. We repair the damage ice dams cause — water-stained ceilings, rotted roof decking, lifted shingles, and damaged gutters. More importantly, we address the underlying cause. That means installing ice & water shield at the eaves and correcting ventilation so the ice dams don’t keep returning every winter. Norwell’s densely wooded lots make this one of the most common calls we get on the South Shore.
Significantly. Heavy tree canopy shades the roof, which holds moisture, promotes moss and algae growth, and prevents snow from melting evenly — contributing to ice dams. Fallen branches cause direct impact damage. Leaf debris clogs valleys and gutters, creating water backup. We account for tree exposure when diagnosing issues and recommend maintenance strategies to extend your roof’s life.
We prioritize storm damage calls and can typically get an inspector out within 24–48 hours. If the roof is actively leaking, we’ll tarp the affected area to prevent further interior damage and then schedule the permanent repair. Norwell’s mature trees make fallen branch damage a common call during nor’easters and summer storms.
Yes. We provide free on-site inspections where we assess the roof’s condition, identify the source of any leaks or damage, and give you an honest recommendation. No pressure, no obligation. If work is needed, we provide a detailed written estimate.
We’re CertainTeed Master Craftsman certified, Google Guaranteed, BBB Accredited with an A+ rating, and NRCA Affiliated. We bring the same certifications, crew, and quality standards to a $500 repair that we bring to a full replacement — the only difference is the scope of work.