22 Roofing Companies in Portsmouth, New Hampshire

Across the 26 itemized residential roofing permits we hold for the roofers we track in Portsmouth, jobs have ranged from $1,200 to $86,500, with a median of $13,700. A typical recent example: a residential re-roof at $14,000. These are actual filed amounts - not national estimates - and Portsmouth's median runs in line with the New Hampshire residential median of $13,700.

Of the 12 companies we track in Portsmouth, 2 have an active contractor license located in public records, 4 are registered business entities, and 2 operate from a commercial rather than residential address. New Hampshire does not issue a statewide roofing license, so roofing is regulated at the city or county level - confirm licensing with the local building department rather than expecting a state license number. A company not appearing with a license here isn’t proof it’s unlicensed - some jurisdictions don’t publish - so verify directly, and always confirm liability and workers’ comp insurance before work starts.

The roofers we track in Portsmouth have been in business a median of 11 years, by their state formation date. The longest-operating is Signature Roofing, in business since 2007 (19 years); 0 were formed less than two years ago. A verifiable formation date and registered agent on file is one of the clearest lines between an established local company and a transient operator.

Rockingham County has recorded 113 significant storm events in the past decade, including hail up to 1.75" and wind gusts to 70 mph, so storm-driven roof damage is common here. After big storms, be wary of out-of-area crews who show up unsolicited, pressure you to sign immediately, or ask you to sign over your insurance claim. 12 of the roofers we track are based in Portsmouth itself, alongside 10 that service it from nearby - favor an established local firm you can verify over a crew that appeared after the hail.

3 of the 12 roofers we track in Portsmouth hold at least one manufacturer certification (GAF, Owens Corning, CertainTeed, TAMKO, IKO, Malarkey). The most common here is CertainTeed, held by 3 companies - versus 46% certified across New Hampshire. Certification means the manufacturer vetted the contractor and lets them back your roof with stronger, longer material-and-labor warranties. Not required to install a roof, but a real signal of training and standing.

Across the 12 companies we track in Portsmouth, the average rating is 4.6★, combining Google, BBB, and Yelp. 7 appear on more than one platform and 9 have owners who actively respond to reviews. Look for steady, recent, multi-source ratings over a handful of old five-star reviews on one site - any single platform can be cherry-picked.

Roofing is a high-fall-risk trade, so safety history matters. Of the 12 companies we track in Portsmouth, 1 has at least one federal OSHA violation on record in the past 10 years, and 11 have none. We show any recorded violation - citation, severity, and penalty - on each profile. A clean record isn’t a guarantee, but repeated serious violations are a real red flag.