Have The Outdoor Living Space Of Your Dreams

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You deserve the perfect backyard living space for relaxing, hosting, and building lifelong memories.

We take your vision for your backyard refuge and make your dreams come true with a custom deck.

Custom Deck Builder in Downingtown, PA

Decks
Porches
Pools
Patios
Spas

Your Downingtown Backyard Retreat Reimagined

Retreat

Unwind after a long day in your personal backyard escape.

Gather

Be the master host for friends, family, and intimate gatherings.

Live

Make core family memories and create a legacy.

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100+ People On Your Side

We are not your typical contractor. From the initial design to the completed project, we believe you deserve a flawless experience.

That’s why every project we build includes:

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    Design process that listens to your vision

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    A full 3D rendering

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    Turnkey process with one company

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    Superior craftsmanship and professionalism

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    Lifetime workmanship warranty

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    Commitment to communication, deadlines, and budget

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    Over 40 years of experience

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    Financing available

We Make A Custom Deck Stress-Free In Downingtown

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    Schedule An Estimate

    Share your vision with our team.

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    Design Proposal

    See your space transformed with a 3D rendering and transparent proposal.

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    Hassle-Free Build

    Let our team bring your vision to life while handling every detail.

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    Enjoy Your Backyard Oasis

    Host, relax, and embrace the joy of your transformed space.

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Come Visit Our Showroom!

We built our showroom to educate and inspire potential customers while allowing our team to meet customers in person.

Looking through a catalog is helpful, but experiencing the styles, colors, and options in a showroom is much better!

Visit the Keystone Custom Decks Showroom to learn how we can help you make your outdoor living dreams come true!

Click here to learn more about our Lancaster County Showroom.

 

View Some Recent Projects Around Downingtown

Cognata (6)

Modern Farm House Porch / Natural Stonework TimberTech Deck – Downingtown, PA

Rhoads (3)

Stonework Double Porch / Ashwood TimberTech Deck – Downingtown, PA

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Heritage Stonework Porch / Pecan TimberTech Deck – Downingtown, PA

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Custom Mocha Deck / Sandstone Stamped Patio – Downingtown, PA

Hannagan (2)

Vinyl Porch / Pecan TimberTech Deck / Barn Door Storage Room – Downingtown, PA

Rama (1)

Porch / TimberTech Deck / Stamped Patio – Downingtown, PA

Brantzeg (1)

Phantom Screen Porch / TimberTech Deck – Downingtown, PA

Brown (2)

Custom Rustic Elm TimberTech Deck / Clay Vinyl Porch – Downingtown, PA

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Custom Amazon Mist TimberTech Deck / Pergola – Downingtown, PA

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Custom Trex Winchester Grey Deck / Barnwood Porch- Downingtown, PA

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“Our experience was nothing short of incredible. From initial concepts, to renderings, to picking out materials in the showroom all the way through to final construction - it’s been flawless. They were all extremely professional, courteous, hard-working and so easy to work with.”

- Lisa Graham

Additional Features For Your Downingtown Deck

Outdoor
Kitchens
Firepits &
Fireplaces
Water
Features
Masonry
Features
Pergolas
 
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“We recently had a new deck built, and we couldn’t be happier with the results. From start to finish, the contractors were incredibly professional and easy to work with. They maintained excellent communication throughout the entire process—always keeping us updated, answering questions promptly, and making sure we were comfortable with each step.”
-Zachary

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“We are so happy with our decision to go with Keystone for our patio/deck project. Every person we came into contact with from pre-sale to completion was extremely kind and professional. With a project of this size, snafus are to be expected. However, the way in which Keystone managed unexpected issues was truly top-notch.”

-Charlie

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“Keystone not only designed and unbelievable deck and storage room, it was actually beyond our expectations.  We will definitely be using Keystone again for some future projects that we have in mind.  It was such a pleasure to work with them, and we could not be happier with the end result.”

– Joanne DeLia

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“We recently contracted Keystone to screen in our existing deck, complete with a barrel roof.  We could not be happier with the finished product.  They delivered a first class product in a first class manner.  We are very happy!”

– Kathleen Rutherford

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“Keystone built a 2000 square foot deck for us.  There was no pushy sales techniques.  We went to Keystone’s showroom and made a couple of modifications.  The ending product was as presented, and we are happy with the results.”

– John Bonner

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What you can expect when Keystone builds your Downingtown deck:

Turn-Key Projects

We take care of every step in the design and construction of your deck.

Integrity

We build your deck on schedule and on budget.

Lifetime Workmanship Warranty

We stand behind our workmanship for the life of your deck.

Manufacturer Product Warranties

Decking and railing materials come with manufacturer warranties.

Your Local Custom Deck Builder In Downingtown, PA

If you own a home in Downingtown or the nearby region, you want an outdoor living space that’s both beautiful and functional—a place where you can relax, entertain, and enjoy quality time with family. The problem is, your current outdoor space may be outdated, unattractive, or underused. At Keystone Custom Decks, we specialize in designing and building custom decks and outdoor living spaces throughout the Downingtown area—helping you transform your backyard into a stunning environment where you can host great parties, make lasting memories, and enhance your everyday lifestyle.

Read more about Downingtown...

At Keystone Custom Decks, we know you want to create and live in your dream outdoor living space, and that is why we have been building custom decks for over 30 years.

We are a custom deck builder in Downingtown, PA.  We serve all homes along the Route 30 corridor and Schuylkill Expressway.

If you live in Downingtown or nearby, you know how much there is to do in Southeastern Pennsylvania. For example,

  • Boulder Fall Minurate Golf
  • Downington Farmers Market
  • Kodabow Archery Range
  • Keiran Robinson Wines
  • Briar Bush Nature Center
  • Board and Brush Downingtown
  • La Sponda
  • Lloyd Park
  • Victory Brewing Company
  • Struble Trail
  • Dowlin Forge Park
  • And so much more!

After spending a day shopping in Exton or King Prussia, touring Philadelphia, enjoying a round of golf at a nearby country club, or exploring Marsh Creek State Park with your family, you can come home to your dream outdoor space to relax and unwind!

Downington was settled in the early 1700s and is home to a number of historic structures. These include the County Bridge No. 124, Downingtown Log House, General Washington Inn, Roger Hunt Mill, and others. The town was originally called Milltown because of the high number of mills that operated along the Brandywine River. The name was changed to Downignton after Quaker businessman Thomas Downing. Downing owned a number of mills in the area and the town was unofficially called Downignton for some time before the name was made official in 1812. Downingtown is now home to 7,898 people and covers 2.19 square miles.

We are happy to serve Downington, zip code 19335, and the surrounding towns and cities.

Projects in Downingtown area...
Other areas we serve...

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NJ:  We serve the state of NJ on a project-by-project basis.  Contact us today to see if we service your area!

Luxury Outdoor Deck Builder Serving Downingtown

To make your dream backyard retreat a reality, we know you want the custom design, layout, and features that are perfect for your family and home.