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 King of Prussia, PA

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

 “The most professional

and understanding crew I've ever had the pleasure to be able to have work done for my family.”

- Guiseppe Troisi

“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 King of Prussia 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.

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 King of Prussia, PA, for over 30 years.

Keystone Custom Decks is a class act from beginning to end - very professional, great follow-through, and completed the project on time and at the quoted price.
They were so easy to deal with and did a great job of setting expectations.  I would highly recommend them to anyone looking to have work deck done of any kind.
-Erica Evans

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.

"We are blown away with the work done by the crew!  It felt like they were excited to build our deck, and their positive attitude towards everything set a great tone for the whole project.  We would definitely use them again."

- David Lacerda

"Keystone just finished our deck today!  They started in the timeframe they noted in our quote.  They sent a 3D rendering of the finished product, and were so easy to communicate with, and they finished in 3 days!"

- Krista Alfonse

"Excellent.  From the design to the final build, we were extremely pleased with the whole process.  We really enjoy our new outdoor living space immensely!  The crew was professional, thorough, and skilled.  I will wholeheartedly recommend them to anyone!"

- Matthew Parambil

Custom Deck Builder in
King of Prussia, PA

As a homeowner in King of Prussia, 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 King of Prussia for over 30 years.

We are a custom deck builder in King of Prussia, PA.  We serve nearby towns and areas including:

  • Bridgeport
  • Conshohocken
  • Gulph Mills
  • Strafford
  • Radnor
  • And many more!

If you live in King of Prussia, then you know the history and many activities that are available. These include: 

  • King of Prussia Mall 
  • The Justice Bell 
  • Gulph Mills Tennis Club
  • Valley Forge National Historical Park
  • Bury the Hatchet Axe Throwing
  • The Escape Games of King of Prussia 
  • Valley Forge Casino Resort 
  • IFLY Indoor Skydiving 
  • American Treasure Tour 
  • Greater Philadelphia Expo Center
  • And more!

After a day exploring Valley Forge Park, spending a day on one of the many nearby golf courses, or enjoying a shopping day at the King of Prussia Mall; come home to your dream outdoor space to relax and unwind! 

King of Prussia is a census-designated place considered to be the edge of Philadelphia. The area was named after the King of Prussia Inn which was originally built as a cottage in 1719 by a Quaker family. It was converted into an inn in 1769 and had steady business as it was about a day's journey from Philadelphia. It was almost destroyed when the state wanted to expand US Route 202. Thankfully, the tragedy was avoided due to the advocating of preservationists.

We are happy to serve King of Prussia, zip code 19406, and the surrounding areas.

King of Prussia
Deck Builder

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 King of Prussia.

We also offer the following:

All these features will make your backyard dreams come true and make you a master host!

Information courtesy of Keystone Custom Decks, 158 Toddy Dr, East Earl, PA 17519