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 Berwyn, 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 Berwyn 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 Berwyn and nearby areas for over 30 years.

“We can't say enough great things about our experience with Keystone Decks. From the initial meeting to the final cleanup, they were amazing to work with and we can't be happier with our deck project.

During the proposal phase the team provides detailed images so you can see EXACTLY what the finished project will look like. The crew led by Matt was professional, friendly, hard-working and provided great communication the whole time.

We are thrilled with our new deck and pavilion! And we are happy to be a reference for anyone who has questions.

-Kelly C.

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.

“Their work is superb. The crew is polite, professional, on time, and EXTREMELY good at what they do. You get a quality product and the price is so reasonable. I could not be more happy with how easy it was for them to install our new deck..”

-Becky K

“All Keystone’s employees and subcontractors did a great job building the deck. The landscapers prepared the site and landscaped after the deck was complete. The concrete crew and stonemasons were excellent. The building crew, led by Reuben, was superb. Many of our friends are in construction and they all commented on the quality of work and materials.

- Paul H.

"Upon embarking on a major home renovation, my concern always was - there are so many contractors out there, am I picking the right partner? Well, emphatically, at every stage I can say Keystone was the right choice and I would choose Keystone every time, if I had to do it again.

- Kevin A.

"We recently got a new deck installed and I cannot say enough great things about the experience we had with Keystone Custom Decks. The decision to go with Keystone started with the ability to go to their showroom and see the actual materials. It was also a great touch that they were able to do a digital rendering of our design.

- Anthony A.

"Overall incredible experience. From the start to the end, everything exceeded my expectations. Working with the primary point person (Dan) was incredible. He graciously listened and provided feedback on all our crazy change requests! Would highly recommend these folks to anyone.

- Chris M.

Berwyn Deck Builder

Are you a homeowner in Berwyn or the surrounding areas?  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 Berwyn, PA, and the surrounding counties and towns. Berwyn is a census-designated area within Chester County and part of the Philadelphia mainline suburbs. It has had many names over the years including Glassley and Reeseville. It finally got its current name from Welsh settlers who named it after a town named Berwyn Hills in Wales. 

As of 2020, the area is home to 11,745 people. It is also home to the historic Footlighters' Theater, a non-profit theater that has been delighting audiences for over 80 years.

With all the activities and things to do in the Berwyn area and nearby regions, we know you want a home with a custom outdoor space.

Berwyn and the surrounding areas boast numerous and varied attractions including:

  • Stoneleigh: A Natural Garden 
  • Lancaster County Farmers Market 
  • The Turkey Hill Experience 
  • Chanticleer Foundation 
  • The Wharton Esherick Museum 
  • Jenkins Arboretum and Gardens
  • Gravity Vault Radnor
  • Valley Forge National Historical Park
  • Wanesborough Country Club
  • Aronimink Golf Club
  • Exploring downtown Beryn or one of the other nearby towns
  • And much more! 

We service all of Berwyn, zip code 19312, and the surrounding area. We also follow all codes as set by Berwyn and Tredyffrin Township.

Custom Decks in
Berwyn, 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.

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!