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Exterior Construction

Deck Builder in Middletown, NY

Composite and wood decks — multi-level, with railings, lighting, and stairs, built for the Hudson Valley climate.

18+Years
540+Projects
4.9★312 Reviews
Licensed #NY-OUTDOOR-44218
Insured & Bonded
5-Year Workmanship Warranty
★★★★★ 4.9 on Google

What’s Included

  • Free on-site design consultation
  • Composite, PVC, or pressure-treated options
  • Railings, lighting & stairs
  • Permit handling & inspection
  • 5-year workmanship warranty

Our Deck Builder Process

01

Consult

Free on-site assessment of your space and site conditions.

02

Design

A clear 3D design and itemized estimate — no surprises.

03

Build

One dedicated crew with weekly progress updates.

04

Reveal

Walkthrough, care guide, and 5-year workmanship warranty.

Proof You Can Stand In

Real Deck Builder Transformations

BeforeAfter
What Clients Say

Trusted in Middletown

★★★★★

Our outdoor kitchen is the centerpiece of every gathering now. Built-in grill, counters, fire pit — all by one team.

Angela T. New Windsor, NY
★★★★★

From the 3D design to the final walkthrough, completely professional. Licensed, insured, and they stood behind the warranty.

Priya S. Warwick, NY
★★★★★

New sod lawn looks like a golf course. They prepped the soil properly and the grass came in thick and even.

Chris P. Goshen, NY
Common Questions

Deck Builder FAQ

Most decks run between $45 and $90 per square foot installed depending on material (pressure-treated, composite, or PVC), height, and railing. We provide a free itemized estimate.

Composite and PVC last 25+ years with almost no maintenance; pressure-treated wood is cheaper upfront but needs regular sealing. We help you weigh cost vs. upkeep for your goals.

Most attached decks require a permit. Thornfield handles the permit and inspection process as part of the build.

Service Area

Deck Builder Across the Hudson Valley

📍 142 Dolson Ave, Middletown, NY 10940
✉️ hello@thornfieldoutdoor.com

Ready for Your Deck Builder Project?

Free on-site consultation and clear pricing. We respond within one business day.