Roofing in Plymouth, MA: Costs, Permits and What to Expect

Plymouth is the largest town in Massachusetts by area, and a roof in Manomet or on the White Horse Beach bluffs lives a very different life from one in The Pinehills or North Plymouth. This guide covers what every Plymouth homeowner goes through when the roof is due: the permit, the historic district, the code and the cost.

The permit comes from Plymouth Inspectional Services at 26 Court Street. Roof replacement is filed online through the town's OpenGov portal as a "Building Permit - Express", the application the town uses for non-structural roofing, siding, windows and doors. On the town's fee schedule effective February 1, 2023, a residential express roofing permit is $75, two of those trades together are $140 and three are $200. Work started without a permit can be charged up to double the fee.

If the house is inside the Plymouth Historic District, the Historic District Commission reviews exterior changes visible from a public way, and the town lists the color and type of roof materials among them. Replacing in kind, the same material, color, size and design, is exempt from review under the commission's guidelines. A wood shake roof in the district has to go back as wood shake, and intact slate is meant to be repaired rather than replaced. If any part of the building is in the district, the whole building counts as in it, so check before you choose a new material.

Massachusetts treats a roof replacement as permitted work. The residential code (780 CMR, 10th edition) lists what is exempt from a permit, and re-roofing is not on that list. The contractor needs a Construction Supervisor License that covers roofing and, on an owner-occupied home, a Home Improvement Contractor registration, and the HIC number goes on the permit application.

The code also sets the floor for how the roof is built. Ice barrier underlayment is required everywhere in the state, running from the eave to at least 24 inches inside the exterior wall. A new roof cannot go over two existing layers, or over one that is wet or deteriorated, and drip edge is required at eaves and rakes. Shingles have to carry a wind rating matched to the town's design wind speed.

Plymouth's design wind speed in the state code is 127 mph, a step below the Cape towns. On the bayside bluffs the exposure is the real issue: nothing breaks the northeast wind, so we use high-wind nailing, sealed starter strips at the eaves and rakes, and stainless fasteners near the water. Inland, the common problem is first-generation roofs in newer developments wearing out together, and a ventilation correction does more for the next roof than a premium shingle.

What a roof costs comes down to a handful of things you can see in a written estimate: the size of the roof in squares, the pitch, how many layers come off, how much of the deck is soft once it is open, the flashing at chimneys, walls and skylights, ventilation corrections, and the shingle system itself. The permit is a small line next to those. Any estimate worth signing lists them separately, including the price per sheet for deck replacement, so the number does not move once the old roof is off.

Under the Massachusetts home improvement law (MGL c.142A), a contract over $1,000 has to be in writing, with the contractor's registration number on the first page, start and finish dates, the materials, the total price and the payment schedule. The deposit cannot be more than one third of the price, or the cost of special-order materials, and a contract signed at your home comes with three days to cancel.

Who pulls the permit matters. If the registered contractor pulls it, you are covered by the state Guaranty Fund, which pays up to $25,000 on an unpaid judgment against a registered contractor. If the homeowner pulls the permit, that protection is gone. We pull the permit on every roof we do.

On a typical Plymouth job the express permit is filed as soon as the contract is signed, the tear-off and new roof take one to three days depending on size and weather, and the town inspects the finished work. If you want to know where your roof stands, we do a free inspection with photos of every slope and a written estimate.