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Decks & Porches · Wrentham, MA

Decks & Porches in Wrentham, Massachusetts

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

30 contractors serving Wrentham — including 2 based in town.

Contractors serving Wrentham

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Decks & Porches in Wrentham — what to know

Rebates & incentives

Decks and porches are not eligible for Mass Save rebates. Wrentham is in National Grid territory, but that only applies to energy work, not deck construction.

For permitting: the Wrentham Building Department handles permits under 780 CMR for any attached or elevated deck. Given the town's wetland geography around Lake Pearl and the Mill River, a Conservation Commission filing under the Wetlands Protection Act is a common step for projects on lower-lying lots. File a Request for Determination before applying for a building permit if your lot is anywhere near a pond, stream, or marshy area. Inspectors check ledger attachment and flashing, guardrail height (36 inches minimum), and baluster spacing under 4 inches. Footings must extend to approximately 48 inches in Norfolk County.

Permits in Wrentham

The Wrentham Building Department issues permits under 780 CMR for attached or elevated decks. Common inspection points: ledger flashing and hardware, 36-inch guardrail height, and sub-4-inch baluster spacing. Footings must reach 48 inches below grade. Conservation Commission review under the Wetlands Protection Act is needed for projects within 100 feet of Lake Pearl, the Mill River, or any wetland in town. Wrentham has no local historic district.

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

Typical project cost

Wrentham deck projects are priced within the I-495 Norfolk County band, above western MA rates but below Boston's inner suburbs. A pressure-treated pine deck on a Wrentham half-acre lot runs $15,000 to $26,000 installed; composite or PVC decking (Trex, TimberTech, Azek) runs $24,000 to $42,000. Larger decks on Wrentham's bigger lots can exceed those ranges. Three-season or screened porch enclosures run $26,000 to $52,000. Conservation Commission filings add application fees and typically four to six weeks when required.

About Wrentham homes

Wrentham is a semi-rural Norfolk County town of 12,173 residents with 4,709 housing units and a median home age of 45 years. The town developed through the 1970s and 1980s, producing a mix of colonials, capes, and raised ranches on lots of a half-acre to over an acre. Wrentham sits between Franklin and Foxborough along I-495, drawing buyers who wanted larger lots than the denser inner suburbs offered.

Lake Pearl and the Neponset River watershed create substantial wetland geography in Wrentham. Properties near Lake Pearl, the Mill River, or the town's conservation lands near the Wrentham State Forest frequently fall within or near the 100-foot wetland buffer, making Conservation Commission review a realistic step for many deck projects.

Common questions — Decks & Porches in Wrentham

Our Wrentham lot is near Lake Pearl. What permits do we need for a new deck?
You likely need both a building permit from the Wrentham Building Department and a Conservation Commission filing under the Wetlands Protection Act for any work within 100 feet of Lake Pearl or its associated wetlands. Start with a Request for Determination from the Conservation Commission, that sets the order of operations for your whole project.
We have a 1980 colonial in Wrentham. What typically needs fixing when we pull a deck permit?
Decks from that era in Norfolk County often have ledger boards attached without through-bolting and flashing, railings under 36 inches, and footings that may not reach the required 48-inch depth. A permit for renovation triggers a full structural review, so budget for corrections before surface re-decking begins.
What size deck can we build on our Wrentham lot?
Wrentham's zoning bylaws set lot coverage limits that determine the maximum footprint for all structures combined. Check with the building department for your specific parcel, a half-acre lot typically allows a generous deck footprint, but lots near wetlands or conservation land may have additional setback restrictions.
How much does composite decking add to the cost of a Wrentham deck?
On a 350-square-foot deck, composite (Trex, TimberTech, Azek) adds roughly $9,000 to $16,000 over pressure-treated pine. In Wrentham's wet shoulder seasons, composite resists the mold and soft spots that pressure-treated pine develops in shaded areas, which is a real advantage on wooded lots.
Can I build a three-season porch on my Wrentham deck without a separate foundation?
A porch enclosure changes the structural load on the existing deck. If the deck's footings and framing are sized for an open deck and not an enclosed structure, they typically need to be reinforced or added to before the enclosure framing is installed. The Wrentham Building Department will require engineered drawings for the combined structure.

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