A full roof replacement means stripping the old roofing material down to the deck, checking that deck for rot or soft spots, installing new underlayment and flashing, and laying down new shingles, metal panels, or another finish system. It's a bigger job than a repair or a re-roof over existing layers, and it's usually what you need once a roof is past 20-25 years old, has widespread leaks, or has damage severe enough that patching stops making sense. In this category you'll find 23 contractors serving New Haven who handle this kind of work, from asphalt shingle jobs on colonials and capes to standing-seam metal and flat roofing on multi-family and commercial buildings.
Before you hire anyone for a job this size, check a few things: are they licensed and insured in Connecticut, do they pull permits for the town rather than skip that step, what manufacturer certifications do they hold (these often affect warranty coverage), and will they put the scope, materials, and cleanup terms in writing. Ask how they handle deck repair if rot turns up once tear-off starts, since that's a common source of surprise costs. A written estimate that breaks out labor, materials, disposal, and any deck or flashing repair allowance is a good sign you're dealing with a contractor who's done this before.
Our scoring weighs review patterns, responsiveness, and consistency over time rather than a single star rating, so you're not just looking at averages. For the full rundown of how we score and rank, see our methodology page, and for our ranked shortlist of the top roofing contractors in the area, visit the best roofing contractors in New Haven guide.