your Dream outdoor living space

Vector Smart Object3 copy
Enjoy A Personal Sanctuary
Vector Smart Object
Host Great Parties
Vector Smart Object1
Increase Your Home Value

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

Custom Deck Builder in PA, DE,
MD, NJ, and NY

Take your outdoor space to the next level with a
Swimming Pool

Become a master host by including a pool with your project!

“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 while also enjoying a personal retreat 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

    Enjoy a Personal

    Let life’s worries behind as you relax and 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 space designed and built should be an enjoyable and painless process.

  • Do you want a personal place to relax, but your existing outdoors is unattractive?

  • Do you love hosting people, but you don’t love your available space?

  • 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 making our client’s outdoor living dreams a reality for over 30 years.

“I have engaged Keystone Custom Decks for 2 major projects: my current and former home.
From the design & planning stages, thru permitting to construction, the personnel are very talented and capable. The work is excellent and precise, materials are first class.
They have always been consistent in taking care of all the details and making sure everything is done right to my satisfaction.”
-Andrew Thompson

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!

before 3D rendering after project completed
“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.

“Keystone Custom Decks

say what they’ll do, and they do what they say!  On time, on schedule, and on quote!”

- Mark Sofio

“The crew was extremely 

professional, personable, and super talented.  Everything was done with precision and most times ahead of schedule.”

- Joanne DeLia

"The team who built the deck

treated our home like it was their home.  Everyday they cleaned up the worksite and left it in immaculate condition.  Professional, courteous, responsive … those are the first words that come to mind when I think of Keystone.”

- Chris Finnin

Custom Deck Builder in
PA, DE, MD, NJ, and NY

As a homeowner, 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 with additional features for over 30 years.

We are a custom deck builder in Lancaster County and Chester County, PA.  We also build custom decks in upstate New York, Delaware, Maryland, and New Jersey.

If you are looking for a Lancaster PA deck builder, our new Keystone Showroom is open!  Full of our available materials, colors, and even some design; our showroom will inspire you as you dream and plan to build your custom deck.

Our base pool maintenance package includes:

  • Check equipment for proper function
  • Empty skimmer & pump baskets
  • Brush & Clean tile line
  • Balance water chemistry
  • Check filter & cleaned as needed
  • Check/Replace salt cell

Click here to learn more about pool maintenance.

When it comes to spa maintenance, we can either send you the supplies or come and do the work for you.

  • Automatic shipment three times per year for
    Frog @Ease systems


  • Monthly water testing and balancing as needed
    (chemicals included)
  • Monthly replacing the chlorine cartridge (or equivalent
    for hot tubs without Frog @Ease system)
  • Monthly cleaning the filter
  • Monthly vacuum of the spa to remove collected dirt
  • Replace the filter as needed
  • Replace the mineral cartridge three times per year (or
    equivalent for hot tubs without Frog @Ease system)
  • Empty, clean, and refill the unit three times per year
  • No dispatch fees for Bullfrog warranty calls

Click here to learn more about spa maintenance.

Your Guide for One-of-kind outdoor living spaces

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.

Our goal is to serve you as our customer in every step. 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.  That way, you know exactly what is included with your custom deck and what it will look like when it is finished.

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