Deck Builders in Mount Lebanon, PA

Experience the difference with our premium decking solutions in Mount Lebanon, PA.
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Looking for experienced deck builders in Mount Lebanon, PA (15228)? Cousins Roofing, Siding & Decks designs and builds custom decks that expand your outdoor living space and match the character of your home. Whether you live in a historic brick house near Washington Road or a newer home closer to Beverly Road, our licensed and insured team delivers decks built for both beauty and durability.

Why Mount Lebanon Homeowners Trust Our Deck Contractors?

  • Licensed & insured deck builders serving the South Hills
  • Custom designs that respect Mount Lebanon’s upscale neighborhoods
  • Composite & wood options tailored to your budget and style
  • Built to code & HOA standards with permit assistance included
  • Upgrades available: railings, lighting, benches, pergolas & more
  • Family-owned company known for honest pricing & clean worksites
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What we do

Our Decking Services in Mount Lebanon, PA

Custom Deck Design & Installation

Every home has its own character, and we design decks to enhance it. From modern, low-maintenance layouts to classic wood builds, we create decks that fit your lifestyle.

Composite Decks

Composite decking is a favorite for Mount Lebanon homeowners who want long-lasting beauty without yearly maintenance. Resistant to fading, rot, and splinters, it’s perfect for busy families.

Pressure-Treated Wood Decks

Classic, affordable, and customizable. For a natural, timeless look, wood decks are cost-effective and customizable with stains and finishes.

Deck Repairs & Restorations

We repair and restore existing decks to keep them safe and enjoyable. Services include:

  • Replacing rotted or warped boards

  • Fixing loose railings & steps

  • Reinforcing framing and structure

  • Resurfacing and resealing wood decks

Outdoor Living Enhancements

Transform your deck into a true outdoor living space with:

  • Built-in seating or planters

  • Modern railing systems

  • Integrated lighting for evening use

  • Pergolas or covered sections for shade and style

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 Mount Lebanon Living

In Mount Lebanon, decks aren’t just an add-on—they’re an extension of the home. Families use decks to:

  • Host dinners, neighborhood gatherings, and holiday parties
  • Relax outdoors in tree-lined backyards near Bird Park or Mt. Lebanon Golf Course
  • Add resale value in one of Allegheny County’s most desirable communities
  • Create multi-functional spaces for dining, lounging, or entertaining

Our team builds decks that combine everyday comfort with timeless curb appeal.

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 Mount Lebanon, PA, our decking contractors also serve Allison Park, Bethel Park, Cranberry Township, Monroeville, Gibsonia, Wexford, Upper St. Clair, 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 Mount Lebanon, PA

How long does it take to build a new deck?

Most decks in Mount Lebanon are completed in 1–2 weeks, depending on size and features.

 

Do you offer both composite and wood decks?

Yes. We install pressure-treated wood for a classic style and composite for low-maintenance living.

Do you handle permits and HOA approvals?

Yes. We take care of permits and ensure compliance with HOA and community guidelines.

 

Can you rebuild or expand my existing deck?

Absolutely. We can extend, resurface, or replace your current deck to suit your needs.

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Upgrade your outdoor living with Cousins Roofing, Siding & Decks—the reliable deck builders in Mount Lebanon, PA.