14 Roofing Companies in Dover, New Hampshire

We don’t yet have enough itemized residential roofing permits in Dover to publish a reliable local cost range. Across New Hampshire, the median filed residential roofing-permit amount is $13,700 - a real filed figure rather than a national estimate. As more Dover permits come on record, we’ll show the local range here.

Of the 10 companies we track in Dover, 0 have an active contractor license located in public records, 3 are registered business entities, and 0 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 Dover have been in business a median of 7 years, by their state formation date. The longest-operating is J. Carnes & Son 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.

Roofing demand in Dover is driven less by storms than by snow load, ice dams, and freeze-thaw cycling. Ice-and-water shield at the eaves plus strong attic ventilation are the key defenses against ice dams. Of the 10 companies we track, 2 hold a manufacturer certification for these systems.

2 of the 10 roofers we track in Dover hold at least one manufacturer certification (GAF, Owens Corning, CertainTeed, TAMKO, IKO, Malarkey). 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 10 companies we track in Dover, the average rating is 4.7★, combining Google, BBB, and Yelp. 5 appear on more than one platform and 8 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 10 companies we track in Dover, 2 have at least one federal OSHA violation on record in the past 10 years, and 8 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.