Deck Builders Washington, PA

Experience the difference with our premium decking solutions in Washington, PA
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If you’re searching for skilled and reliable deck builders in Washington, PA (15301), look no further than Cousins Roofing, Siding & Decks. Our experienced team designs and builds decks that turn ordinary yards into comfortable, stylish outdoor spaces for relaxing, entertaining, and making memories.

As a family-owned company with deep roots in Western Pennsylvania, we take pride in helping Washington County homeowners enhance their homes with decks built for lasting quality, beauty, and safety. From cozy residential decks to multi-level outdoor spaces, every project we build reflects our commitment to craftsmanship and care.

Why Washington, PA Homeowners Choose Cousins Roofing, Siding & Decks

  • Licensed & insured deck builders with years of hands-on experience
  • Custom designs tailored to your home’s layout and outdoor space
  • Composite and pressure-treated wood materials available for any style or budget
  • Projects built to meet all local codes and permitting standards
  • Full-service deck construction — from design and permitting to final cleanup
  • Family-owned business focused on quality, transparency, and reliability
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What we do

Our Decking Services in Washington, PA

Custom Deck Design & Installation

Every home and yard is different, and your deck should reflect your lifestyle. We work closely with you to design a deck that complements your property and fits how you like to enjoy the outdoors — whether that means a private retreat for family dinners or a spacious deck for entertaining guests. Our design team handles everything from layout and materials to railing choices and lighting, ensuring your finished deck looks beautiful and functions perfectly.

Composite Decks

Composite decking offers the ultimate blend of durability and low maintenance. It resists rot, fading, and splintering — and never needs to be sanded or stained. For Washington homeowners who want long-lasting beauty without the upkeep, composite is a smart, sustainable option that stays looking great year after year.

Deck Repairs & Restorations

If your current deck is showing signs of wear, our restoration experts can bring it back to life. We offer professional repair and refinishing services to restore both safety and style.

Common repairs include:

  • Replacing cracked, warped, or rotted boards

  • Fixing railings, stairs, and framing issues

  • Reinforcing structure for long-term stability

  • Power washing, sealing, or resurfacing for renewed appearance

Railings, Lighting & Custom Upgrades

Personalize your outdoor living space with details that make it truly yours. We offer:

  • Composite, vinyl, or aluminum railings

  • Built-in seating, planters, and privacy screens

  • Energy-efficient LED deck lighting

  • Pergolas, covered areas, or partial enclosures for shade and comfort

Pressure-Treated Wood Decks

For those who love the natural warmth and character of wood, we also build pressure-treated lumber decks. These decks are cost-effective, strong, and customizable with stains or finishes that enhance your home’s aesthetic. A wood deck offers timeless appeal that pairs well with Washington’s scenic surroundings.

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 Built for Washington, PA Living

A deck isn’t just an addition — it’s an extension of your home. Across Washington County, families use their decks to:

  • Host cookouts, celebrations, and game-day gatherings
  • Enjoy the quiet outdoors in neighborhoods like East Washington and Trinity Point
  • Boost home value with modern outdoor living spaces
  • Create multi-tier decks for dining, lounging, or enjoying a fire pit

Each deck we build blends form and function, giving you a durable and inviting space to enjoy throughout the seasons.

Contact Us

Cousins Roofing, Siding & Decks – Washington, PA
6 S Main St #510, Washington, PA 15301
(412) 228-3145

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

In addition to Washington, PA, our decking contractors also serve Allison Park, Mount Lebanon, Bethel Park, Cranberry Township, Monroeville, Gibsonia, Wexford, Upper St. Clair, Baldwin, South Park Township, Franklin Park, McMurray, Dormont, Butler, Sewickley, Mount Washington, 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 Washington

How long does a new deck take to build?

Most deck projects in Washington are completed within 1–2 weeks, depending on the design and materials selected.

What’s the difference between composite and wood decking?

Composite decking offers longer life and less maintenance, while wood provides a natural look and lower initial cost. We’ll help you decide which fits your goals and budget best.

Do you handle permits and code requirements?

Yes. We take care of all necessary permits and make sure your deck complies with Washington County’s building codes.

Can you remodel or expand my existing deck?

Definitely — we can resurface, rebuild, or enlarge your current deck to create more space or improve safety and design.

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Upgrade your backyard with a custom-built deck from Cousins Roofing, Siding & Decks, the trusted deck builders in Washington, PA. We deliver exceptional craftsmanship, honest pricing, and dependable results that last.