your Dream outdoor living space

Due to current demand and our availability, we are serving this area on a project-by-project basis. Please contact us to see if we are able to build your project.

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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 Bel Air, MD

“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 Bel Air 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.

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    Be Proud
    of Your Space

     Become the envy of the neighborhood with your beautiful outdoor space.

Download our catalog to see everything we offer with our custom decks!

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 Bel Air and nearby areas for over 30 years.

“Keystone is a great company from the beginning of show and sales.  The real winners are the team, the workers are amazing.
They were as dedicated and hardworking from the beginning to the end.  Always had a smile on their face and came in and did the job and cleaned every day!
A friendship bond was built between our family and them.  Thank you again, guys!  We look forward to future projects!”
-Amy L.

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.

“Daniel Beiler and his crew were excellent. They were on time and professional. Answered all our questions promptly. The workmanship is top notch.”

- Mac Dolton

“We just finished our deck with Abe and Levi and couldn’t be more thrilled. Their craftsmanship was amazing and they talked us through every step of the way. They are true professionals, we are so pleased that we chose Keystone Custom decks and can’t wait to create memories for years to come!

- Ryan Patterson

"We had a great experience with Keystone Custom Decks. Our outdoor space is absolutely beautiful. A big shout out to Elvin & his team for doing such a great job, being amazing to work with and making sure everything was perfect.

- Pamela Szarka

"Thank you to my crew from Keystone Custom decks. The work is beautiful. The crew showed up every day they said they would on time and worked a full day. They were extremely courteous and very easy to work with and offered great advice when asked. The job site was always clean and they did their absolute best to be as little of a disruption as possible, like making sure I could always get my car in and out of my house.

- Patricia Combs

"5 stars for Keystone Custom Decks. They did an awesome job on our new deck. We could not be happier. Matt and his design team created a "new" look to our deck. Mike and his construction team were both professional and courteous throughout the construction. When we had a concern, they worked with us to solve it. Many compliments from our neighbors and would highly recommend KCD to all our family and friends.

- Curtis & Ann Lane

Bel Air Deck Builder

If you are a homeowner in Bel Air or the surrounding region, 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 Bel Air, MD, and the surrounding counties and locations.


We know how much there is to do in Bel Air and the surrounding MD region, and we want to create your dream outdoor living space to host parties and relax.


After enjoying a day exploring the nearby countryside and beauty of Maryland, getting exercise at Loch Raven Reservoir Park or the Bay, or spending the day in one of the many nearby cities, you can come home to your dream outdoor space and relax!

Custom Decks in
Bel Air, MD

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, our team is committed to making your outdoor dreams come true and keeping you informed throughout the process.  From the initial estimate to the final product, our team of deck builders and deck contractors will walk with you each step and keep you informed.


We give you a detailed proposal and complimentary 3D rendering of your project.  This allows you to see the finished project and make any changes you want before we even start building your deck and outdoor space.


If you are looking to create your dream outdoor living space with a local deck builder in Bel Air, MD, 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!