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 Farmington, NY

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 Farmington 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.

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 custom decks for over 30 years.

“We recently had a deck built by Keystone Custom Decks in NY.  Our experience with Keystone was great.
I've built many decks back when wood was the only real choice for decking, but much has changed in the deck industry, and Keystone has remained current with their product selection and expertise.
Our deck now a work of art thanks to the knowledgable staff at Keystone Custom Decks."
-Phil Riehl

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.

"This was by far the best contractor experience ever from the very beginning to completion.  When a few problems popped up, I thought it was awesome how the team handled it.  They immediately brought it to my attention, and they always had multiple options for solutions.  I highly recommend Keystone!"

- Tim Kalligonis

"We could not be happier with our new deck!  The crew was simply amazing!  I don't think I've ever encountered anyone who works harder or who keeps a project on track like them.  If you are thinking of a deck or porch remodel or addition - Keystone Custom Decks is the only way to go."

- Janet Brower

"We highly recommend Keystone.  Ryan was excellent and worked with us very collaboratively to bring out ideas and vision to life.  The install team was very thorough and our end-to-end experience exceeded our expectations.  We love our new deck and space!"

- Shweta Neville

Custom Decks in
Farmington, NY

If you are a homeowner in Farmington 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.

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 Farmington, NY.  We also serve the surrounding areas.  It doesn't matter if you are in the Town of Farmington or nearby; we want to make your outdoor dreams come true! 

If you live in the Farmington area, you know how much there is to do in the area, whether it is shopping, visiting one of the nearby lakes, or spending some time on a golf course.  After spending some time at the Finger Lakes Gaming & Racetrack, enjoying a day on a lake, or shopping at Eastview Mall; you can come home to your dream outdoor space to relax and unwind! 

Located close to Canandaigua Lake, Farmington has plenty to offer locals and tourists. These attractions include: 

  • Ontario Mall Antiquies 
  • Finger Lakes Racetrack 
  • Stampin' Good Times
  • Mertenia Park 
  • Victor Municipal Park 
  • Seneca Park Zoo
  • Seabreeze Amusement Park 
  • Smith Family Farm Museum 
  • Rosemond Gifford Zoo 
  • Sacred Groce 
  • and more!

Farmington was part of the 1788 Phelps and Gorham Purchase, a 6,000,000-acre land purchase. The Commonwealth of Massachusets bought it from the Six Nations of the Iroquois Confederacy, a confederacy of Native Americans in the region. The first settlers were mostly Quakers from Massachusetts. It is now home to 14,275 people (as of the 2020 census). If you make it to Farmington, be sure to visit the Farmington Quaker Crossroads Historic District which is registered in the National Register of Historic Places. 

We are happy to serve Farmington, NY, zip code 14425, and the surrounding area!



These guys are the definition of professional. Always on time, always communicating, always respectful. We did a 1,000SQF composite deck with a screened in section, heaters, lighting, cable railing...the works and it all came out awesome. The attention to detail was incredible. You'll never hear a curse word or see a cigarette butt in your yard. We had the pleasure of having Anthony and Ernest as the primary foremen, but the whole team is incredible. I was honestly sad to see them go because it was such a pleasure to watch their progress! Strongest recommendation of any company I've worked with over the years on home projects!
- Trevor DiMarcio
"I've never dealt with a contractor that was so responsive, and stuck to their timeline. They came every morning and told us the schedule and stuck to it. They went above and beyond, and answered all our questions through the process and revised the project when we asked. We highly recommend Keystone for any outdoor projects." 
- Kyle and Agatha Edkin

Farmington 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 Farmington.

We also offer the following:

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