Deck and Patio Addition Cost in Westchester County (2026 Guide)
Serving Yonkers and all of Westchester County
Outdoor living space is one of the most requested additions we see, and the right choice between a deck, patio, or covered porch depends on your budget, yard layout, and how you plan to use the space. Here’s what to expect.
Deck and Patio Cost by Type
| Type | Typical Cost | Typical Cost Per Sq Ft |
|---|---|---|
| Wood deck | $8,000 to $15,000 | $25 to $40 |
| Composite deck | $15,000 to $25,000 | $40 to $60 |
| Paver or stone patio | $6,000 to $15,000 | $20 to $40 |
| Covered or screened porch | $20,000 to $60,000+ | $60 to $150 |
Wood vs Composite Decking
Wood decking costs less upfront but requires regular staining or sealing to hold up against New York winters, typically every 1 to 2 years. Composite decking costs more initially but requires essentially no maintenance and holds its color and structure for decades, which often makes it the better long-term value even at a higher starting price.
Deck vs Patio
A deck is elevated and built from wood or composite decking, well-suited to yards with a slope or a walkout from an upper floor. A patio sits at ground level and is built from pavers, stone, or concrete, generally the more affordable option and a natural fit for a yard that’s already level near the house.
Covered and Screened Porches
A covered or screened porch costs significantly more than an open deck or patio since it involves a roof structure, and often electrical work for lighting and fans. In exchange, it extends the usable season well beyond a typical open deck, and a screened option adds bug protection that makes a real difference during Westchester’s humid summer months.
Permits in Westchester County
Most decks and covered porches require a building permit, particularly if they’re attached to the house or elevated more than a certain height, while ground-level patios often don’t. Requirements vary by town, so it’s worth confirming with your local building department before starting work.
How Long a Deck or Patio Takes
A patio typically takes 1 to 2 weeks to install. A wood or composite deck usually takes 1 to 3 weeks depending on size and complexity. A covered or screened porch takes considerably longer, typically 4 to 8 weeks, due to the roof structure and any electrical work involved.
Getting an Accurate Quote
The real cost of your deck or patio depends on size, material, and site conditions like grading and access. A detailed, itemized estimate is the only way to know your actual number rather than a rough range.
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