



How to Choose the Best Roofing Contractor

Certified Residential Roofers
DeSalvo Contracting proudly maintains the credentials of a certified residential roofer. We hold certifications with IKO, CertainTeed, and Genflex—three of the biggest names in roofing. Plus, all of our roofers have at least an OSHA 10 Certificate and we have a full-time safety officer with knowledge in construction safety.



Get the best roofing warranty for your investment.
Because we hold these roofing designations, we’re able to offer you an extended roof warranty, giving you peace of mind about your investment. Contact us to discuss your options.
FAQs
Frequently Asked Roofing Questions
Yes! We proudly hold certifications with the industry’s best roofing manufacturers, including IKO, CertainTeed, and GenFlex.
We’ve served the residential and commercial roofing needs of New Hampshire and Massachusetts for over 20 years.
We are licensed and insured in the states of New Hampshire and Massachusetts.
Safety is our top priority. We are an OSHA-certified roofing company and every roofing project is overseen by our full-time safety officer.
As a certified roofing contractor, we are able to offer the best roofing warranties in the industry. Contact us to discuss your options.
Keep an eye out for these signs:
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Missing or damaged shingles
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Leaks or water stains inside
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Sagging roof deck
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Your roof is over 20 years old (especially for asphalt shingles)
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If you spot any of these, it may be time to give us a call!
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Yes! We provide expert installation of low slope and flat roofing systems for residential homes.
We work with premium EPDM and TPO materials—both known for their durability, weather resistance, and energy efficiency. Whether it’s a home addition, porch roof, or full flat-roof residence, we deliver long-lasting solutions tailored to your home.
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As a full-service commercial and residential contractor, we also install gutters, siding, and facades.
Roofing Services in NH & MA
We serve towns within a 40-mile radius of Manchester, New Hampshire. If you don't see your town listed below, give us a call.