Schedule An Estimate

Share your vision with our team.
Design Proposal

See your space transformed with a 3D rendering and transparent proposal.
Hassle-Free Build

Let our team bring your vision to life while handling every detail.
Enjoy Your Backyard Oasis

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

Schedule an Estimate

View Our Project Gallery

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 Chester County

Curved Dark Roast Deck & Screened Porch – West Chester, PA

Poolside Pavilion with Covered Porch and Spa Retreat – Malvern, PA

Custom Stonework Pavilion / Patio / Deck – West Chester, PA

Standing Seam Modern Farm House Porch / Flagstone Patio – Kennett Square, PA

Outdoor kitchen and dining area with stone walls and a wooden ceiling, equipped with a grill, countertops, and seating, overlooking a yard with a pool.

Poolside 3 Seasons Porch / Flagstone Patio – Malvern, PA

Backyard with a two-story house featuring a covered deck, surrounded by lush greenery and a large swimming pool with a built-in hot tub.

Poolside Modern Farm House Porch / Trex Deck – Phoenixville, PA

Infinity Pool / Flagstone Patio / Outdoor Kitchen – Chester Springs, PA

Custom Porch / Deck / Pool / Patio – Chester Springs, PA

Custom Trex Deck / Bronze Aluminum Pergola – Berwyn, PA

Custom Heritage Barrel Pool House – Chester Springs, PA

Schedule an Estimate

View Our Project Gallery

“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 Chester County Deck

Outdoor
Kitchens

Firepits &
Fireplaces

Water
Features

Masonry
Features

Pergolas

“Keystone just finished our deck project. Arlan and team were amazing. Their attention to detail and work quality was very impressive. Would use Keystone again for any outdoor projects.”

-Jon

“The project team spent 5 weeks at our house and were amazing to deal with. They were cordial and addressed our needs and concerns. They were extremely organized and cleaned up at the end of the day. They always had our best interests at heart. They were a pleasure to work with.”

-William

“What a fabulous experience with Keystone from start to finish. Each day when I would home I was equally impressed with the professionalism Keystone brings to our place. Every cut and every angle was precise. Thank you Keystone Custom Decks!”

– John Drummy

“Their 3D rendering really helped us envision what the final project would look like, and it helped guide us in making adjustments and changes to improve the functionality of the living space.”

– Lawrence Han

“Keystone did a wonderful job on our deck. The crew was awesome to work with, our kids became very close with them and enjoyed giving them coffee and drinks. At first I was hesitant to spend so much money on a deck, but I wouldn’t do without it now. Our family spends every chance we get to hang out there, so I would highly recommend them to whoever is interested in an oudoor living area.”

-Peter Zook

Schedule an Estimate

View Our Project Gallery

What you can expect when Keystone builds your Chester County 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 Chester County, PA

As a homeowner in Chester County, PA, you want an outdoor living space that’s both inviting and functional—a place where you can entertain, relax, and enjoy time with family. The problem is, your current outdoor space may be outdated, underused, or lacking the charm you envision. At Keystone Custom Decks, we specialize in designing and building beautiful custom decks and outdoor living spaces throughout Chester County, helping you transform your backyard into the perfect setting for hosting gatherings, making memories, and enhancing your everyday lifestyle.

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 in Chester County, PA, for over 30 years.

If you live in Chester County, PA, then you know the beauty of the rolling hills, horse farms, and classy towns that dot the county’s landscape. After a day at Longwood Gardens, spending a day at the Brandywine Polo Club, or enjoying a farm-to-table meal; come home to your dream outdoor space to relax and unwind! More attractions include:

1723 Vineyards
American Helicopter Museum and Education Center
Air Venture Hot Air Balloon Flights
Black Rock Sanctuary
Brandywine Battlefield Park
Brandywine Museum of Art
Chantiecleer Garden
Delaware Museum of Nature and Science
East Branch Brewing Company
French Creek State Park
and so much more!

Chester County is located in the Delaware Valley region of Pennsylvania. It, along with Philadelphia and Bucks, were the three original counties formed by William Penn in 1682. The fourth county, Lancaster, was formed from Chester County in 1729. Chester County is home to 534,413 people as of the 2020 census.

We are a custom deck builder in Chester County, PA. We serve the towns and cities in Chester County including:

Atglen, Avondale, Berwyn, Birchrunville, Brandamore, Chatham, Chester Springs, Coatesville, Cochranville, Devault, Devon, Downingtown, Elverson, Exton, Glenmoore, Honey Brook, Immaculata, Kemblesville, Kennett Square, Kimberton, Landenberg, Lewisville, Lincoln University, Lionville, Lyndell, Malvern, Modena, New London, Nottingham, Oxford, Paoli, Parker Ford, Parkesburg, Phoenixville, Pomeroy, Pottstown, Sadsburyville, Saint Peters, Spring City, Thorndale, Toughkenamon, Unionville, Uwchland, Valley Forge, West Chester, West Grove, Westtown

We also serve the following zip codes in Chester County:

19382, 19320, 19335, 19380, 19460, 19087, 19355, 19348, 19341, 19073, 19363, 19465, 19425, 19390, 19344, 19350, 19475, 19317, 19312, 19311, 19352, 19365, 19343, 19333, 19301, 19362, 19330, 19520, 19310, 19383, 19372, 19374, 19388, 19316, 19318, 19346, 19345, 19347, 19351, 19353, 19354, 19358, 19357, 19360, 19367, 19366, 19371, 19369, 19375, 19376, 19381, 19397, 19395, 19399, 19398, 19421, 19432, 19442, 19457, 19470, 19480, 19482, 19481, 19483, 19488, 19487, 19489, 19493, 19495, 19494, 19496

Projects in Chester County area...

Other areas we serve...

PA Counties:

PA Areas:

MD Areas:

DE Areas:

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

Have The Outdoor Living Space Of Your Dreams

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

Custom Deck Builder in Chester County, PA

Your Chester County Backyard Retreat Reimagined

Retreat

Gather

Live

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:

We Make A Custom Deck Stress-Free In Chester County

Schedule An Estimate

Design Proposal

Hassle-Free Build

Enjoy Your Backyard Oasis

Come Visit Our Showroom!

View Some Recent Projects Around Chester County

Curved Dark Roast Deck & Screened Porch – West Chester, PA

Poolside Pavilion with Covered Porch and Spa Retreat – Malvern, PA

Custom Stonework Pavilion / Patio / Deck – West Chester, PA

Standing Seam Modern Farm House Porch / Flagstone Patio – Kennett Square, PA

Poolside 3 Seasons Porch / Flagstone Patio – Malvern, PA

Poolside Modern Farm House Porch / Trex Deck – Phoenixville, PA

Infinity Pool / Flagstone Patio / Outdoor Kitchen – Chester Springs, PA

Custom Porch / Deck / Pool / Patio – Chester Springs, PA

Custom Trex Deck / Bronze Aluminum Pergola – Berwyn, PA

Custom Heritage Barrel Pool House – Chester Springs, PA

Additional Features For Your Chester County Deck

What you can expect when Keystone builds your Chester County deck:

Turn-Key Projects

Integrity

Lifetime Workmanship Warranty

Manufacturer Product Warranties

Your Local Custom Deck Builder In Chester County, PA

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 in Chester County, PA, for over 30 years.

Luxury Outdoor Deck Builder Serving Chester County

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.