your Dream outdoor living space

Vector Smart Object3 copy
Improve your lifestyle
Vector Smart Object
Host Great Parties
Vector Smart Object1
Increase Your Home Value

Deck Builder in Chester County

Make your dream outdoor living space a reality with a custom deck and additional features!

“We are incredibly pleased

with the outcome and excited to have this new outdoor living space to relax and spend time with the family.”

- Garret Pachtinger

 “We’re very excited

to use our new outdoor space.  With football season around the corner it will get a lot of use!”

- Erica Evans

“We LOVE our new deck

with an outdoor kitchen and fireplace!”

- Megan & Dave Johnson

“Dream come true.

We are over the moon happy with our new deck.”

- Angela R.

Become a Master Host in Chester County, PA with a custom outdoor living space.

  • Group Of Happy Young Friends Having Dinner At Patio

    Host Great

    Make new and lasting memories with family and friends.

  • Home lifestyle woman relaxing enjoying luxury sofa patio furniture on outdoor patio

    Have a Place
    to Relax

    Let life’s worries behind as you enjoy the beauty of the outdoors.

  • 660460

    Be Proud
    of Your Space

     Become the envy of the neighborhood with your beautiful outdoor space.

Download our catalog to see everything we offer with our custom decks!

At Keystone Custom Decks, we believe having your dream outdoor living space designed and built should be an enjoyable and painless process.

  • Do you love hosting people, but you don’t love your available space?

  • Do you enjoy spending time outdoors, but your existing outdoor space is unattractive or unusable?

  • Do you have a vision for your dream outdoor living space, but you feel overwhelmed by the construction process?

We know what it feels like to not love your outdoor living space. That is why we have been a custom deck builder in Chester County, PA, for over 30 years.

“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

We make the process as easy as possible

  • 1

    Call Us

    We’ll learn more about your space and schedule an estimate.

  • 2

    Design Proposal

    Receive your quote and complimentary 3D rendering.

  • 3


    Sign your proposal and watch your dreams become reality.

  • 4


    Love the space you have to host parties and live!

3D Render Final Build
“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: 

What you can expect with Keystone Custom Decks:

Turn-key Projects

We take care of every part of the construction process.

Lifetime Workmanship Warranty

We stand behind our work for life.


We deliver on our timeframe and proposal promises.

Financing Available

We offer financing options through our partners.

"Keystone recently completed a new deck with a cover for our yard, and we are so happy we chose to go with them.  The entire project was amazingly completed in 10 days as quoted."

- Kevin McCabe

"I could not be more pleased with the job Keystone Custom Decks did putting a new covered front porch on our home with new walkways as well."

- Gary Feveryear

"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

Chester County Deck Builder

As a homeowner in Chester County, PA, you want a beautiful outdoor living space.  The problem is your current outdoor space might be unattractive or unused.  Keystone Custom Decks builds beautiful custom decks and outdoor living spaces so you can host great parties, make memories, and improve your 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

Custom Decks in
Chester County, PA

To make your dream backyard a reality, we also know that you may want more than just a deck.  That is why we offer more than just custom decks in Chester County, PA.

We also offer the following:

All these features will make your backyard dreams come true and make you a master host!
Are you ready to start designing your dream outdoor space?

Read our FREE e-book to learn the questions you need to ask when you begin designing your dream outdoor living space!