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 Mendon, 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 Mendon 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.

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.

Keystone Custom Deck was the greatest.  I got 4 estimates and went with Keystone.  Truly a professional group, and friendly, and easy to work with.
They gave us 3D images of the design on our house, and the finished product looks just like the design.  They walked us through everything and were attentive every step of the way."
-John Walston

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.

"All the craftsmanship was simply top-notch, and everyone was polite and cheerful.  From replacing old deck wood to suggesting a new slider to access our screen porch, changes were handled promptly and with grace.  Can't recommend this company highly enough."

- Tracy Hoffmann

"Amazing work.  it was a pleasure to work with them from start to finish.  And the deck they built for us is just gorgeous!  Highly recommend."

- Alana Ogurcak

"We hired Keystone to replace our existing wooden deck with a new composite deck and roof.  Their workmanship is impeccable.  We truly miss not having them at our house.  It's no wonder Keystone is busy and growing."

- Tina Roseman

Custom Decks in
Mendon, NY

If you are a homeowner in the Town of Mendon or nearby 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 Mendon, NY.  We serve all homes in the Town of Mendon and the surrounding Rochester suburbs.

If you live in Mendon or close by, you know how much outdoor beauty and space there is for outdoor recreation.  After spending a day on one of the many nearby lakes, enjoying a round of golf on a nearby course, or spending quality family time at Mendon Ponds Park; come home to your dream outdoor space to relax and unwind! 

Mendon has a lot of attractions to delight locals and tourists alike! These include: 

  • Mendon Ponds Park
  • Sam Patch Erie Canal Tour
  • Powder Mills Park
  • Mendon Golf Club
  • Casa Larga Vineyards
  • The Distillery Restaurant
  • Eastview Mall
  • Rochester Museum and Science Center
  • George Eastman Museum
  • Genesee Country Village and Museum
  • and more!

Originally home to the Seneca people, the area that is now Mendon was not settled by Europeans until the late 1700s. Mendon was officially established in 1813. Like many other towns and cities in the region, the formation of the Erie Canal boosted the town's economy. It remained a rural community and today is a mix of suburban and rural spaces. As of 2020, it was home to 9,095 people. 

We are happy to serve Mendon, NY, zip codes 14506 and 14472, as well as the surrounding areas. 

Mendon 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 Mendon.

We also offer the following:

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