How much does a deck cost in Westchester County NY?

Deck costs in Westchester County NY range from $60–$100+ per square foot installed depending on material and complexity. Composite decks (Trex, TimberTech) typically run $65–$90/sqft. PVC (AZEK) runs $75–$100/sqft. Pressure-treated wood runs $38–$52/sqft. Westchester runs 10–20% higher than most NY state averages.

Do Westchester County contractors need a license?

Yes. Westchester County requires home improvement contractors to be licensed by the Westchester County Department of Consumer Protection. Verify at westchestergov.com/licensing. NY state law (GBL Article 36-A) also requires all payments before completion to be held in escrow.

Westchester County NY · Updated March 2026

Deck Cost in Westchester County, NY (2026)

Westchester County is one of the highest-cost deck markets in the country — similar to Fairfield County CT just across the border. Composite decks run $65–$90/sqft. Here's exactly what to expect, with Westchester-specific licensing requirements and red flag thresholds.

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Westchester County Deck Pricing at a Glance

Composite (Trex, TimberTech)$65–$90/sqft$55–$80/sqftBelow $38/sqft

PVC (AZEK, TimberTech AZEK)$75–$100/sqft$65–$90/sqftBelow $48/sqft

Pressure-treated wood$38–$52/sqft$30–$45/sqftBelow $22/sqft

Hardwood (Ipe)$90–$130/sqft$75–$110/sqftBelow $60/sqft

WestchesterNY AverageRed Flag

⚠️ Westchester County Licensing is Mandatory

Westchester County requires all home improvement contractors to be licensed by the Westchester County Department of Consumer Protection. This is separate from and in addition to NY state requirements under GBL Article 36-A.

An unlicensed contractor in Westchester cannot legally enforce any home improvement contract. Verify before paying any deposit.

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NY Law: Escrow Requirement for All Deck Payments

Unlike Connecticut, New York requires all payments made before project completion to be held in escrow at a NY bank within 5 business days (NY Lien Law § 71-a). The contractor must tell you where your money is held within 10 business days.

This is a stronger protection than CT's framework. When negotiating your Westchester deck contract, include this question: “Where will my deposit be held in escrow as required by NY Lien Law § 71-a?” A legitimate contractor will answer this immediately.

Sample Deck Budget: Westchester County

480 sqft composite deck replacement — Scarsdale/Bronxville area

Composite decking (Trex Transcend Lineage)$10,500–$14,000

PT framing with hidden fasteners$5,800–$8,000

Helical or concrete piers (8, 48" depth)$5,000–$7,500

Aluminum railing system$5,500–$8,000

Stairs (10 treads)$2,200–$3,500

Westchester permit + inspections$500–$900

Demo and disposal$1,800–$2,800

Labor (Westchester rates)$9,000–$13,500

Total

$40,300–$58,200

$84–$121/sqft

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Related Guides

Deck Cost in Fairfield County CT

The neighboring CT premium market — with Fairfield County pricing data.

NY Contractor Deposit Laws

NY escrow requirement and the roofing zero-deposit rule.

Deck Cost in New York (Statewide)

NY statewide deck pricing across NYC, Long Island, and upstate.

How to Compare Contractor Bids

The full bid comparison framework for any state.

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