Reliable Commercial Roofing Solutions in Portsmouth, NH
- 24/7 Emergency Repair Service
- Flexible Financing With Wisetack
- GAF Platinum Preferred Contractor
Ready to Elevate Your Commercial Roof in Portsmouth, NH?
Portsmouth may be known for its historic waterfront charm and thriving downtown, but it’s also one of New Hampshire’s busiest commercial hubs. From the bustling Market Street district and hospital campuses to industrial parks along the Route 1 Bypass, local businesses rely on buildings that can withstand the region’s intense weather swings. And here on the Seacoast, those conditions can change fast. Winter brings heavy coastal snow and freezing winds, spring ushers in persistent rain, summers can be humid and stormy, and fall often arrives with strong nor’easter-driven gusts. Every season challenges the strength of your commercial roof.
That’s where Dover Roofing LLC steps in. We specialize in commercial roof installations and replacements built specifically for Portsmouth’s waterfront climate and year-round exposure. Our team delivers expert craftsmanship, top-tier roofing materials, and decades of hands-on experience so your roof can protect your property, endure harsh weather, and perform long-term.
Why Portsmouth Businesses Choose Dover Roofing LLC
In a city like Portsmouth, where commercial buildings range from historic brick structures to modern medical facilities, your roof does far more than cover your business. It safeguards your tenants, inventory, equipment, and overall operations. Whether you manage a retail center near Lafayette Road, run a multi-unit property in Islington Creek, or oversee a manufacturing space near Pease, you need a roofing system that is durable, efficient, and low-maintenance.
Dover Roofing LLC delivers exactly that. Local business owners and property managers trust our company because we provide practical, high-performing roofing backed by clear communication and reliable workmanship.
Commercial Roofing Services We Offer in Portsmouth, NH
From waterfront complexes to inland industrial buildings, we handle projects of every size throughout Portsmouth. Our commercial roofing services include installations, replacements, and maintenance for:
- Multi-Family Housing
- HOA-Approved Roofing Systems
- Apartment Buildings
- Assisted Living Centers
- Churches and Religious Buildings
- Industrial Facilities
- Storage Units
- Retail Centers
- Warehouses
- Hospitals and Medical Complexes
Our certified team ensures every roofing project meets strict manufacturer requirements, building codes, and the specific structural needs of your facility.
Types of Commercial Roofing We Install
Every commercial property has unique demands, so we offer a full range of materials suited for Portsmouth’s climate and building styles:
EPDM Roofing: A durable, flexible membrane ideal for flat and low-slope roofs. EPDM stands up to UV exposure, ponding water, and winter freeze-thaw cycles.
TPO Roofing: A popular, energy-efficient option with excellent reflective properties—perfect for reducing cooling costs during humid Seacoast summers.
PVC Roofing: Designed for buildings that need added chemical, grease, or moisture resistance, including restaurants, hospitals, and industrial sites.
Metal Roofing: A long-lasting, premium roofing choice that performs exceptionally well against wind, coastal conditions, snow loads, and salt-air exposure.
Asphalt Shingle Systems: A reliable and cost-effective option for sloped commercial roofs and multi-family developments.
Every installation is completed with high-quality materials, proper insulation, detailed flashing, and drainage solutions that prevent long-term issues.
Built to Withstand Portsmouth’s Coastal Climate
Portsmouth’s proximity to the Atlantic Ocean adds an extra level of pressure to commercial roofs. Salt-laden air, strong coastal winds, and heavy winter storms can quickly wear down inferior materials. Our roofing systems are engineered to resist corrosion, shed snow efficiently, prevent leaks, and maintain strength through extreme temperature swings. With Dover Roofing LLC, you get fewer repairs, better performance, and greater long-term savings.
Partner with Portsmouth’s Trusted Commercial Roofing Experts
As a locally owned and operated roofing company serving the Seacoast, Dover Roofing LLC understands exactly what Portsmouth businesses face year after year. We provide free estimates, honest communication, and roofing systems built for longevity. Whether your building sits near the Prescott Park area, along Woodbury Avenue, or within the Pease Tradeport, we’re here to protect your investment.
Get a Free Estimate for Your Portsmouth Commercial Roof
If your commercial roof is start to show any signs of wear, or if you’re planning a new construction project, reach out to Dover Roofing LLC today. We’ll evaluate your roof, walk you through your options, and provide a no-obligation estimate.
Protect your commercial building with a roofing system built for Portsmouth’s toughest coastal conditions. Contact Dover Roofing LLC for your free commercial roofing estimate today.
Cities Served
Dover Roofing LLC
120 Durham Rd, Dover
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Well, after 20 years our old roof gave out. We checked into about 15 different roofing companies and eventually had about 10 come out and give us an estimate. The companies ranged from a two man crew to one that employed multi-hundreds … More people across the country. The estimates ranged from $13,000 to $61,000 with anywhere from one day to a couple of weeks to complete. We eventually selected Dover Roofing to remove the old shingles and replace them with new GAF asphalt shingles. We could not be any more pleased with Dover Roofing and their entire team. From Ryan who gave us a very detailed estimate, to Savannah, to the entire removal/installation unit (10 very conscientious people) and Tyler, the big boss! Everyone was the epitome of “old school service and job dedication” and strived to see the work was done right. Dover Roofing’s prices are very reasonable. Given their excellent service, they are a true bargain. Thanks again to EVERYONE at DOVER ROOFING.
ps. We’re so appreciative of Dover Roofing that we’re having them come back next week to repair some siding on our house. -
I would like to say a big "Thank you" to Dover Roofing, especially to Dennis, for your immediate response to my emergency situation on Saturday, April 26, and to Tyler and his crew so my roof replacement could be done the next … More day on Sunday, April 27, 2025.
I really appreciate your professional service.
Rinnie. -
Dover Roofing did an excellent job siding our house. They came in under other estimates, communication was good throughout the project, and they got it done fast! They came back and touched up small areas at the end as well - delivered … More on everything they promised. We would highly recommend using Dover Roofing!
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I needed a new roof and after seeing the Dover Roofing truck drive by, I figured why not send them a message. Within a day of reaching out, I had a phone call back Dennis and we set up a time to look at the roof and go over my questions. … More
He came out the following week, measured the roof and gave me an estimate on the spot. The price was good and we started the process. Tyler called and gave me some days they would come over and work on the roof replacement (pending weather). He called me the next day and said the team was on their way over, it was 3PM at that point. I figured it would be a long night for them because as you can see in the pictures, the old roof was pretty old and rough. 12 people showed up, and within 3 hours the roof was done. Not only was it done but it looked amazing.
His team even went around with a giant magnet and removed any possible nails or other metal that fell into the grass so my son and dog would not step on them, they did this on their own!
I was blown away how efficiently his team worked, as the roof was pretty old and the plywood underneath was bad. His team did an amazing job and just wanted to say thanks again!
