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 Glen Mills, 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 Glen Mills 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 Glen Mills and nearby areas for over 30 years.

“Keystone Custom Decks recently completed our deck project which included a covered porch. From start to finish everyone we worked with and the process itself were top notch.

Ron did a great job talking us through all of our options to come up with our final design. The crew of Daniel and the guys were extremely professional and a real pleasure to work with. They were extremely communicative all along the way, worked through really tough weather, kept a clean worksite, and just had a great work ethic.

The finished product is beautiful and we couldn't be happier. We strongly recommend Keystone Custom Decks.”

-Mike 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

“From the initial meeting with Ron, to the walkthrough in their gorgeous new showroom you really got to see your dream deck come to life. Their 3D imaging was incredibly helpful envisioning the finished product."

- Katie Leonard

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 recently had Keystone Custom Decks design and complete an outdoor living area project to include a custom roof over our patio, along with a pergola to include a retractable top canvas and side curtain. Their creativity and knowledge provided us with a top-notch solution to create shade on our patio since we get the afternoon sun. The entire process from beginning to end was handled professionally and completed with outstanding quality.


“Keystone just finished our deck. Work was high quality. The process was extremely professional. Every inquiry was promptly answered and addressed. Mahlon, Nate, and Brian are top-notch. Would highly recommend.

- Thomas L.

"Right from the beginning we knew that Keystone was the way to go. Ron did a great job in recommending the best possible options for our project and it came out better than expected. The crew Josh/Joe & Paul were absolutely amazing to work with and their work ethic was spotless.

- Vinod M.

"We could not be happier with the finished product. The crew were respectable, professional, and made sure they communicated along the way the progress and steps. Ron, Kevin, Mike, and Merlin and the rest of the crew were fantastic. Great job, Keystone!

- Joshua K.

"The team was professional, organized, and completed the project in a timely manner. During the project, they were in frequent communication with us regarding updates, flexible with last-minute changes we requested, reasonable in price when we compared other quotes. Very professional, courteous, and skilled at what they do

- Linda T.

Glen Mills Deck Builder

Do you live in the Glen Mills area or nearby?  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 Glen Mills, 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.

If you live in Glen Mills, you are aware of the numerous attractions in the area including 

  • Newlin Grist Mill 
  • Grace Winery 
  • Arasapha Farms
  • Bonner Park 
  • Bethel Township Park 
  • The Golf Course at Glen Mills
  • Haneeda's Kitchen 
  • Board and Bush Glen Mills 
  • Oasis Family Fun Center
  • Chadds Ford Barn Shops
  • Lucky Penny Alpacas 
  • Westtown Amish Market
  • And more!

After enjoying the outdoors at the Newlin Grist Mill Park, having family time at the Oasis Family Fun Center, or enjoying the water and woods at Ridley Creek State Park, you can come home and relax and unwind in your backyard oasis.

Glen Mills is an unincorporated community 27 west of Philadelphia. It is named after two paper mills that, among other things, supplied special paper to the US government for bonds and notes. While these mills are no longer standing, a grist mill, the Newklin Mill Complex, which was built in 1704, continues to attract tourists. Glen Mills local, pilot Micheal R. Horrocks perished in the September 11 attacks. He was the first officer on the second plane to hit the World Trade Centers.

We build decks in Glen Mills, zip code 19342, and other zip codes in the area.  We also follow all codes as established by Concord Township and other applicable townships. 

Custom Decks in
Glen Mills, 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!