your Dream outdoor living space

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Improve your lifestyle
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Host Great Parties
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Increase Your Home Value

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

Deck Builder in Garnet Valley, PA

“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 Garnet Valley 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 building dream decks in Garnet Valley and nearby areas for over 30 years.

“When we started this journey we were nervous about the amount of money we were investing in our home to create an outdoor space of our dreams with a new patio and a deck. We met with a few contractors, but Keystone just seemed right to us with the vision and level of detail on what’s best for us. 

Josh and his crew were second to none and we would hire them again in a second. They were prompt every day, worked extremely hard throughout their hours, and focused on the project all day long.

The project from start to finish couldn’t have went better and I cannot tell you how highly we recommend them.”

-Steve & Amanda

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

“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  Would definitely recommend!”

- Krista Alfonse

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.

“ 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 that built out deck (Ben, Jay, & Timmy) are the best. They are very professional, thorough, and skilled. I was very pleased to work with them and will wholeheartedly recommend them to anyone!

-Joe P.

“The end result was a pergola that looked better than the original. I was very pleased with the result and would recommend them to friends and neighbors.

- Greg F.

"Keystone Custom Decks built an outdoor entertaining space. I call it an open-air pool hut. Including a tv, fireplace, wet bar. They were great to work with from beginning to end. Will use them again in future.

- Renee C.

"Josh, John, and Paul created a beautiful deck for us. Their work was excellent. I would totally recommend Keystone Custom Decks!

- Maggi C.

"The crew that did our deck worked through some of the toughest elements to get our deck done and looking absolutely perfect. Thank you to Levi and the guys.

- Satisfied Homeowner

Garnet Valley Deck Builder

Do you live in Garnet Valley or a nearby community?  If so, you want a beautiful outdoor living space for hosting, relaxing, and spending quality family time.  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 with additional features for over 30 years.


We are a custom deck builder in Garnet Valley, PA, and the surrounding counties and locations.  After spending time working or playing in the Southeast PA area, we know you want a beautiful outdoor area to relax when you come home.


After exploring the historical Brandywine Battlefield Park, spending time outdoors at Clayton Park or the Clayton Park Golf Course, or getting physical exercise at the Maplezone Sports Institue or Maplezone Sports Village, you can enjoy your dream outdoor space and relax when you arrive home.


We build decks in the Garnet Valley zip code 19014 and the surrounding zip codes.  We also follow all codes as established by Concord Township and Bethel Township.

Custom Decks in
Garnet Valley, PA

To make your dream backyard a reality, we also know that you may want more than just a deck.  That is why we are more than just a local deck builder; we also offer multiple custom features to go along with your custom deck.

We build porches, patios, pergolas, outdoor kitchens, fire pits and fireplaces, masonry features, and water features to accompany your custom deck.

All of these features will allow you to create a personalized space where you will make new memories, share family meals, relax in your backyard, and become a master host with a beautiful outdoor space.

At Keystone Custom Decks, we strive to help you have the backyard and outdoor area of your dreams.  Our team works with you and keeps you informed every step of the project!


We give you a detailed proposal and complimentary 3D rendering of your project.  We want you to be able to visualize the finished project before construction starts, that way you can make any necessary changes that you want.


If you are looking to create your dream outdoor living space with a local deck builder in Garnet Valley, PA, then look no further than Keystone Custom Decks.  We look forward to serving you in the process and becoming your local deck contractor!

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

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!