Trex & Composite Decks · Newtown Square, PA

Trex Deck Builder in Newtown Square, PA

Slate Building is a certified Trex deck builder specializing in custom Trex and TimberTech composite decks, covered patios, pergolas, and outdoor living spaces throughout Newtown Square and Delaware County. We build premium, low-maintenance outdoor spaces built to last decades.

5.0 rating · 21 reviewsDesign-build · No subcontractorsServing Bucks County, PA

Recent Outdoor Builds

Real projects, built in-house.

From shaded estate lots near Ellis Preserve to wooded properties along Ridley Creek, we build low-maintenance Trex composite decks that look beautiful year after year with almost no upkeep.

Stone fire-pit lounge & paver patio
Stone fire-pit lounge & paver patio
Pool deck & covered porch
Pool deck & covered porch
Custom outdoor structure
Custom outdoor structure
Pine-clad outdoor living build
Pine-clad outdoor living build

What We Build

Outdoor living services we offer.

Composite Decks

Low-maintenance Trex and TimberTech composite decking in dozens of colors and grain patterns — fade, stain, and scratch resistant.

Wood Decks

Classic pressure-treated, cedar, and exotic hardwood decks built with hidden fasteners and premium framing for a clean, lasting finish.

Covered Decks

Roofed and covered decks with vaulted ceilings, fans, and skylights so you can enjoy the outdoors rain or shine.

Pergolas

Custom wood and aluminum pergolas — freestanding or attached — for shade, structure, and a defined outdoor room.

Outdoor Kitchens

Built-in grills, stone bars, counters, and prep space engineered for everyday entertaining and built to last decades.

Paver Patios

Natural stone and paver patios, walkways, and seating walls with proper drainage and a flawless, level finish.

Railings

Aluminum, cable, glass, and composite railing systems that are fully code-compliant and tailored to your design.

Lighting

Integrated low-voltage deck, step, and landscape lighting for safety, ambiance, and year-round usability.

Why Homeowners Choose Slate

Craftsmanship you can stand on.

Licensed & insured

Fully licensed and insured in Pennsylvania for your complete peace of mind.

Custom designs

Every project is designed from scratch around your home, lot, and lifestyle.

Premium materials

Trex, TimberTech, natural stone, and custom wood — built to last decades.

Clear communication

One point of contact, transparent pricing, and daily updates throughout.

Local Bucks County contractor

We know local codes, permitting, and what holds up to Pennsylvania weather.

Trex composite deck builder project in Newtown Square, PA by Slate Building LLC
Low-maintenance Trex composite deck in Newtown Square, PA.

Certified Trex deck builder serving Newtown Square

Slate Building LLC is a certified Trex deck builder serving Newtown Square and the surrounding Delaware County communities. We design and build premium composite decks using Trex and TimberTech materials — engineered for beauty, longevity, and almost zero maintenance. Every project is handled in-house by our own crews, from concept through final inspection.

Composite decking has become the first choice for Newtown Square homeowners who want a stunning outdoor space without the endless upkeep of wood. With capped polymer boards in dozens of colors and realistic wood-grain textures, a Trex deck delivers the warmth of timber with the durability of modern engineering.

Why Trex composite is ideal for Newtown Square

Newtown Square's wooded estate lots and shaded backyards near Ridley Creek are tough on traditional wood decks. Pollen, falling leaves, and trapped moisture lead to mildew, warping, and constant refinishing. Trex's fully capped boards shrug off all of it — no splinters, no rot, no annual staining.

Beyond durability, Trex offers design freedom. We use it for curved fascia, picture-frame borders, contrasting inlays, and seamless transitions to patios and pergolas. The result is a deck that looks custom because it is — tailored to your Newtown Square home's architecture and your family's lifestyle.

Trex lines, colors, and railing systems

We install the complete Trex portfolio — Transcend and Transcend Lineage for the richest grain and the longest 50-year fade and stain warranty, Select for premium value, and Enhance for budget-conscious projects. We pair them with TimberTech AZEK PVC when a fully synthetic board is the better fit.

Railings and lighting complete the build. Choose from aluminum, cable, glass, or composite railing systems, then add integrated low-voltage deck, step, and post-cap lighting for safety and ambiance. We bring full samples to your Newtown Square consultation so you can see and feel every option before you decide.

Low-maintenance decks built to last

A Trex deck from Slate Building is engineered to last decades. Our framing uses proper joist spacing, hidden fasteners, and corrosion-resistant hardware so the structure stays as solid as the surface. We file permits with Newtown Township and coordinate every inspection so your composite deck is fully code-compliant.

Maintenance is simple: an occasional rinse with soap and water keeps your Trex deck looking new for years. No sanding, no sealing, no staining — just more time enjoying your backyard. That low-maintenance, high-ROI appeal is why composite decks are one of the smartest outdoor upgrades for Newtown Square homes.

Proudly serving Newtown Square, PA & nearby towns

Slate Building LLC builds premium custom decks and outdoor living spaces across Newtown Square, PA and the surrounding communities, including Broomall, Edgmont, Media, Malvern, Berwyn, Wayne, and Villanova.

  • Broomall
  • Edgmont
  • Media
  • Malvern
  • Berwyn
  • Wayne
  • Villanova

Have Questions?

Answers for local homeowners.

How much does a Trex composite deck cost in Newtown Square?

Most Trex and TimberTech composite decks in Newtown Square range from roughly $22,000 to $75,000+ depending on size, the Trex line you choose, railings, and lighting. Composite costs more up front than wood but saves thousands in maintenance over its lifetime.

Which Trex lines do you install in Newtown Square?

We build with the full Trex range — Transcend, Transcend Lineage, Select, and Enhance — along with TimberTech AZEK and PRO. We bring physical samples to your Newtown Square consultation and help you choose the right line, color, and railing for your home and budget.

Why choose Trex over wood for a Newtown Square deck?

Newtown Square's mature tree canopy means shade, pollen, and moisture that quickly wear down wood. Trex's four-sided capped boards resist fade, stain, mold, and rot, so your deck needs only an occasional soap-and-water rinse instead of yearly sanding, staining, and sealing.

What warranty comes with a Trex deck?

Trex lines carry limited residential warranties from 25 years on Enhance up to 50 years on Transcend, covering fade, stain, and material defects. We install strictly to Trex specifications so your warranty stays fully valid.

Can you resurface my existing deck with Trex in Newtown Square?

If the existing frame is structurally sound and meets code, we can replace old wood boards with new Trex decking, railings, and lighting. It's a budget-friendly way for Newtown Square homeowners to upgrade to composite without a full tear-down.

Explore More

Services & service areas.

Slate Building LLC designs and builds across Bucks County. Browse our services and the towns we serve.