E&J General Services

Building permits for decks in Watertown are filed with the Watertown Building Department under 780 CMR. On Watertown's old and dense housing stock, inspectors closely review ledger attachment to original wood framing (many houses have original balloon framing or older platform framing that requires special attention), footing adequacy, 36-inch guardrails, and sub-4-inch baluster spacing. Staging and parking for contractors on Watertown's narrow, busy streets is a real logistical challenge. Permit turnaround is typically one to two weeks.

Deck costs in Watertown are at the high end of the Massachusetts suburban range, reflecting Greater Boston labor rates, the density challenges of inner-suburb work, and the frequent need for structural remediation on 80-year-old houses. A full deck rebuild on a Watertown two-family typically runs $24,000 to $46,000 for 200 to 350 square feet. Composite or PVC decking over new framing adds roughly $8,000 to $15,000 over pressure-treated. Farmer's porch structural repairs, which are common on Watertown's older stock, typically run $18,000 to $38,000.

Massachusetts requires a written contract and a Home Improvement Contractor registration for most residential decks & porches work; ask for the registration number and check it before paying a deposit.

More on permits, costs, rebates and common questions, plus every other decks & porches contractor serving the town, on the Decks & Porches in Watertown page.