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Decks & Porches · Westwood, MA

Decks & Porches in Westwood, Massachusetts

Compare contractors serving Westwood, Norfolk County — call them directly, or send one request and let the ones who want the job come to you.

30 contractors serving Westwood — including 2 based in town.

Contractors serving Westwood

Claimed listings within 5 miles come first, then the rest by rating, then distance. Google ratings as of October 2026. How we list and rank contractors

Decks & Porches in Westwood — what to know

Rebates & incentives

Decks are not eligible for Mass Save rebates. Eversource serves Westwood, but utility territory has no bearing on deck project costs. Most Westwood properties are not in close proximity to major wetland resource areas. However, Neponset River headwater tributaries and isolated wetlands exist in the northern portions of town, and any deck within 100 feet of those features requires a Notice of Intent filed with the Westwood Conservation Commission under the Wetlands Protection Act. Given the town's large wooded lots, the Conservation Commission also receives applications for work near isolated wetlands and vernal pools that may not be immediately obvious from lot lines alone.

Permits in Westwood

Westwood Building Department issues deck permits under 780 CMR. The town's housing stock, centered on the late 1950s through 1970s, includes colonials and ranches where ledger connections often lack modern through-bolts and flashing. Inspectors verify ledger attachment and flashing, 48-inch frost footings, 36-inch guardrails, and baluster spacing under 4 inches. Westwood's permitting process for standard residential projects is generally efficient.

Where a permit is required, decks & porches work in Westwood is filed with the Westwood Building Department; see the Westwood Building Department’s contact, portal and who pulls the permit on permits.llc.

Typical project cost

Westwood sits in the upper tier of the Route 128 South pricing band. A new 400 to 600 square-foot pressure-treated deck on a Westwood colonial runs $22,000 to $42,000 installed. Composite decking (Trex, TimberTech, Azek) adds $10,000 to $18,000 over PT for the same footprint. Westwood homeowners frequently opt for composite or Ipe on larger builds given the home values and buyer expectations in this market. Three-season porch additions start around $55,000 and can exceed $100,000 on larger properties with high-end finishes.

About Westwood homes

Westwood is an affluent Norfolk County suburb with 16,149 residents spread across about 5,657 housing units, giving it one of the lower housing unit densities in this dataset for its population. The median home age is roughly 59 years, spanning a mix of 1950s-through-1970s colonials and ranches alongside some newer construction on larger wooded lots. Westwood has generous lot sizes compared to its neighbors Norwood and Dedham, and its residential character is primarily single-family. The town has no ocean frontage, but the Neponset River headwaters and associated wetlands exist in the northern part of town near Dover.

Common questions — Decks & Porches in Westwood

Does my Westwood property likely have wetland buffers affecting a deck project?
Most Westwood properties are not near major rivers or coastal wetlands, but Neponset River tributaries and isolated wetlands exist in the northern part of town. Run a GIS check of your parcel or ask the Westwood Conservation Commission before assuming you're clear. Isolated vernal pools on wooded lots can trigger the 100-foot buffer under the Wetlands Protection Act.
What is a realistic budget for a deck on a Westwood colonial?
A 400 to 500 square-foot pressure-treated deck on a Westwood colonial runs $22,000 to $38,000 installed; composite materials push that to $32,000 to $55,000. Given home values in Westwood, many owners choose composite or Ipe to match buyer expectations in this market.
What footing depth is required in Westwood?
Norfolk County frost depth requires footings at 48 inches below finished grade. Sonotube concrete piers at that depth are standard and are inspected before framing begins.
My 1968 Westwood colonial has an attached deck with a flashing issue. What are the risks?
Water infiltration at an unflashed ledger will cause rot in the band joist and potentially the adjacent wall framing over time. The damage isn't always visible until it's significant. Any permit for deck work will require the ledger to be corrected; getting ahead of it proactively is better than discovering the rot at the worst time.
Is a screened porch a common addition in Westwood?
Yes, it's popular in this market, particularly on larger lots where outdoor living is a significant feature. Screened porches add usable square footage through the bug season from May through September. They're also a strong selling point in the Westwood real estate market where outdoor spaces are prized.

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