Deck Builders Upper St. Clair, PA

Experience the difference with our premium decking solutions in Upper St. Clair, PA.
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Looking for trusted deck builders in Upper St. Clair, PA (15241)? Cousins Roofing, Siding & Decks designs and builds beautiful, long-lasting decks that turn your backyard into an outdoor retreat. Whether you want a quiet place to relax, a space for family gatherings, or an outdoor entertainment area, our licensed and insured team delivers decks built for comfort, beauty, and durability.

From neighborhoods near Boyce Mayview Park to homes along Fort Couch Road and McMurray Road, Upper St. Clair homeowners rely on us for custom decks built with precision and care.

Why Upper St. Clair Homeowners Choose Our Decking Contractors

  • Licensed and insured deck builders with years of local experience
  • Custom deck designs that match your home’s architecture and yard layout
  • Composite and pressure-treated wood options for lasting performance
  • Built to HOA standards and local building codes
  • Full-service construction, including design, permits, and cleanup
  • Family-owned company offering honest pricing and top-quality craftsmanship
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What we do

Our Decking Services in Upper St. Clair, PA

Custom Deck Design & Installation

Every home is unique, and your deck should be too. We’ll collaborate with you to create a design that enhances your property’s layout and complements your home’s style while providing the features you’ll enjoy most.

Composite Decks

Composite decking is a top choice for Upper St. Clair homeowners who want a beautiful, low-maintenance outdoor space. It’s resistant to rot, fading, and splintering, so you can spend more time enjoying your deck and less time maintaining it.

Pressure-Treated Wood Decks

For homeowners who love the natural look of wood, pressure-treated decking offers timeless appeal and can be customized with stains or finishes. It’s an affordable, durable option that fits both traditional and modern homes.

Deck Repairs and Restorations

If your existing deck is showing signs of wear, we can restore it to its former beauty and safety. Our services include:

  • Replacing damaged or rotted boards

  • Repairing or reinforcing railings and steps

  • Structural adjustments for stability and safety

  • Cleaning, sanding, and resealing wood decks

Railings, Lighting, and Upgrades

Add functionality and flair with upgrades that make your deck even more enjoyable. Options include:

  • Composite or metal railings for safety and style

  • Built-in benches and planters

  • Low-voltage or LED lighting for ambiance and safety

  • Pergolas and partial coverings for shade and comfort

Testimonials

What our clients say
about our services.

Google Reviews

“Cousins Roofing, Siding & Decks did an excellent job on my siding! Quick turnaround time as well. I will definitely recommend them to anyone looking to have work done!”

Jay Nulph

Google Reviews

“Sam & Calvin are amazing! They worked with 4 families to give us a new roof. Their team of roofers did an excellent job and Same was here checking on things to make sure we were all satisfied. Sam and Calvin also replaced our front steps and railings. We are so pleased with the workmanship. You can't go wrong with this company.”

Barbara Kruman

Google Reviews

“Cousins did a wonderful job on our deck replacement. Sam is an amazing, honest person and went above and beyond our expectation. His company completed the work in one day. I highly recommend Cousins Roofing, Siding & Decks”

J. Jackson

Google Reviews

“We are so pleased with our new siding, metal roof and brand-new porch. Not only were Sam, Calvin and their crew reliable, responsive, professional, and extremely talented craftsman, they were also a joy to have around. We had a vision, and they nailed it, and quite honestly, they were better than we could have ever hoped. We are already discussing future projects.”

Kristen Lang

Google Reviews

“I can not say enough positive things about this company! I was able to easily schedule an IN PERSON appointment and was given an estimate at that visit. No waiting! Sam was very knowledgeable about products and made great recommendations regarding our back deck replacement. They are quick to reply to calls & text messages and keep you informed at every step of the process. Last, but not least, their workmanship is incredible!!!”

Mindy Pinter

Google Reviews

Decks for Upper St. Clair Living

A deck is more than a backyard feature—it’s an extension of your home. In Upper St. Clair, families use decks to:

  • Host cookouts, parties, and outdoor gatherings
  • Relax with views of landscaped yards and wooded surroundings
  • Increase home value with stylish outdoor living upgrades
  • Create multi-level spaces for dining, lounging, and entertaining

We’ll design your deck to match your lifestyle, adding comfort, function, and long-term value.

Contact Us

Cousins Roofing, Siding & Decks
2681 Sidney St #148, Pittsburgh, PA 15203
(724) 913-2665

HOURS
Monday: 8am – 5pm
Tuesday: 8am – 5pm
Wednesday: 8am – 5pm
Thursday: 8am – 5pm
Friday: 8am – 5pm
Saturday: Closed
Sunday: Closed

In addition to Upper St. Clair, PA, our decking contractors also serve Allison Park, Mount Lebanon, Bethel Park, Cranberry Township, Monroeville, Gibsonia, Wexford, Baldwin, South Park Township, Franklin Park, McMurray, Dormont, Mount Washington, Washington, Butler, Sewickley, Ross Township, Valencia, West View, Brentwood, Mars, Seven Fields, Zelienople, Harmony, Canonsburg, Cecil Township, Peters Township, Bridgeville, McCandless Township, Shaler Township, Whitehall, Murrysville, Plum, Moon Township, South Fayette Township, Fox Chapel, and Lower Burrell.

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FAQs About Decking in Upper St. Clair, PA

How long does it take to build a new deck?

Most decks in Upper St. Clair are completed in one to two weeks, depending on the size and design.

 

Which material is better, wood or composite?

Composite lasts longer and requires less maintenance, while wood provides a classic look and lower initial cost. We’ll help you decide what fits best for your home.

Do you handle permits and HOA approvals?

Yes, we manage all required permits and coordinate with your HOA to ensure compliance with local guidelines.

 

Can you rebuild or expand my existing deck?

Absolutely. We can resurface, extend, or completely rebuild your deck for more usable space and improved safety.

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Enhance your home’s outdoor living with Cousins Roofing, Siding & Decks—the trusted deck builders in Upper St. Clair, PA. Contact us today to request your free estimate and start planning your perfect backyard retreat.