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

Deck Builder in Malvern, 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 Malvern with a custom outdoor deck and 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 custom decks in Malvern and nearby towns for over 30 years.

These guys were INCREDIBLE from start to finish.  The sales proecess was made simple and professional, and the build is AMAZING.  The team who build the deck treated our home like it was their home. 
Professional, courteous, responsive... those are the first words that come to mind when I think about Keystone.  I cannot recommend these guys enough."
-Chris Finnin

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 your new deck and 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 hired Keystone to replace our existing wooden deck with a new composite deck and roof.  Everything about their business is Class A.  Their workmanship was impeccable.  We truly miss not having them at our house."

- Alan Roseman

"Their show room was impeccable and whole company was so easy to deal with.  Great communication with constant updates throughout the process.  Can't find any negatives.  Soooo glad we chose them."

- Gary Kirshner

"Outstanding customer service, great communication and very hard working people.  Beautiful finished project.  I highly recommend."

- Adrienne Neithardt

Custom Deck Builder in Malvern

If you own a home in Malvern or one of the nearby towns, 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 for over 30 years.

We are a custom deck builder in Malvern, PA.  We serve all the homes along the routes of 202, 322, 30, and all of Southeastern Pennsylvania.

If you live in Malvern or the surrounding region, you know how much there is to do in the Southeastern PA area. 

Malvern has numerous attractions including: 

  • People's Light Theatre
  • Locust Lane Craft Brewery
  • Paoli Battlefield Pinball
  • Gallery General Warren
  • Restaurant Alba
  • Wharton Esherick Museum
  • Historic Sugartown
  • Grand Slam USA
  • Play-A-Round Golf
  • And more

Whether you spend your afternoon playing a round of golf, exploring the rich history or culture of Philadelphia, or taking the family to tour Valley Forge; you can come home to your dream outdoor space to relax and unwind! 

Malvern is a borough in Chester County about 25 miles from Philadelphia. It was settled by Welch immigrants in the 17th century. It is also the site of the tragic Paoli Massacre. Today it is a community of 3,419 as of the 2020 census. 

We are happy to serve the Melvern area, zip code 19355, and the surrounding areas. 

Kelly C - "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. Keystone will not be the lowest estimate you receive, but we can attest that the quality is beyond the price and worth every penny. We are thrilled with our new deck and pavilion! And we are happy to be a reference for anyone who has questions."

Mike F - "My wife and I very highly recommend Keystone. From design at their showroom, options selection and professional advice to the final sign off they could not have been more quality/service conscious. Their on site team was courteous, efficient and on schedule. Quality unsurpassed in my view. They are the best!"

Anthony S - "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. Once we got the quote and timeline we did not believe they could stick to such a short window to do all the work, but they did exactly what they said they would. The experience only got better once the team started to work. Johnny and his crew were absolutely amazing. They have a great work ethic, pay attention to detail and the communication was fantastic (any item that came up they would explain to me and provide a suggestion, as well as kept me in the loop of when they would be there, what they would be working on, etc). Their professionalism was off the charts, my wife and two impressionable sons were at home most of the time when they were working and we felt comfortable with the team. Overall we had a first-class experience and I would recommend Keystone for anyone that is looking for a new deck."

Malvern 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 for our Malvern projects.

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

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!