Create

your Dream outdoor living space

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Improve your lifestyle
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Host Great Parties
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Deck Builder in Watkins Glen, NY

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

Patios
Porches
Decks
Pergolas

Additional Features

Outdoor Kitchens
Firepits and Fireplaces
Water Features
Masonry Features

“Dream come true.

We are over the moon happy with our new deck.”

- Angela R.
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Become a Master Host in Watkins Glen with a New Backyard Deck

  • Happy Friends Having Lunch

    Host Great
    Parties

    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.

  • Smiling man crossing his arms

    Be Proud
    of Your Space

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

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View Some Of Our Projects In The Watkins Glen Area:

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Trex Biscayne Deck / Stamped Concrete Patio – Penn Yan, NY

1400 Loree Rd-9

Trex Toasted Sand Deck/Open Porch/Fireplace – Penn Yan

765 Old Pines Trail-8

Trex Lineage Biscayne Deck/Open Porch – Penn Yan

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Flagstone Patio/Screened Porch/Outdoor Kitchen/Boat House – Penn Yan

2427 Avon Rd-3

Timbertech Legacy Ashwood Deck/Open Porch/Fireplace/Outdoor Kitchen – Penn Yan, NY

1S5A5522

Trex Pebble Grey Deck / Stamped Concrete Patio – Penn Yan, NY

5733 E Bluff Dr-1

Trex Rainier Deck / Outdoor Kitchen – Penn Yan, NY

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Trex Saddle Deck / Paver Patio / Pergola – Penn Yan NY

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Trex Saddle Deck / Cedar Pergola – Penn Yan, NY

Keystone Custom Decks

Covered Trex Deck and Outdoor Kitchen – Keuka Lake, NY

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 for over 30 years.

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“Mahlon and his crew did a great job with our deck and screened-in patio.  They were incredibly professional and hard working.

We will definitely enjoy it for many, many years to come and are so thankful we hired them to do our project.  We could be happier with the results!"

-Ashley Cheek

We make a new deck in Watkins Glen 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

    Installation

    Sign your proposal and watch your dreams become reality.

  • 4

    Enjoy

    Love your new deck and space you have to host parties and live!

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“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
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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.

Integrity

We deliver on our timeframe and proposal promises.

Financing Available

We offer financing options through our partners.

"From start to finish, Keystone was extremely comprehensive, communicative, prompt and professional. Our completed project is exactly what we've been dreaming of for nearly a year. Mahlon really listened to our "wants" and "needs" for the project and helped turn them into a beautifully crafted, functional deck that is an expansion of our living space. Nate and his talented crew did impeccable work and were so careful with our yard and home. They tended to every detail. We couldn't be more pleased with our overall experience and hope to work with Keystone again on future projects."

- Jamie Anderson

"Incredible skilled and detailed workmanship! Mahlon and his crew did an amazing job minimizing disturbance on our difficult, steep back yard. The deck is gorgeous and we couldn't be happier with our choice of Keystone Custom Decks."

- Bren Bunny

"Mahlon and his crew did a great job with our deck and screened in patio. They were incredibly professional and hard working. We will definitely enjoy it for many many years to come and are so thankful we hired them to do our project. We couldn't be happier with the results."

- Ashley Cheek
Schedule an Estimate
Visit the Showroom

Custom Decks in Watkins Glen

If you own a home in Watkins Glen or the surrounding area, 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.

Watkins Glen 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 in Watkins Glen.

We also offer the following:

All these features will make your backyard dreams come true and make you a master host!