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 Canandaigua, NY

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

“Dream come true.

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

- Angela R.

Become a Master Host in Canandaigua with a new backyard deck.

  • 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.

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 a custom deck builder in Canandaigua for over 30 years.

We are absolutely thrilled with the front and back decks that Keystone built for us! From the design process with Mahlon to the crews who worked tirelessly each day to complete the process, Keystone is definitely a professional and skilled contractor.
They answered any question or concern we had as the project progressed and the finished product is just beautiful! I would recommend Keystone above all others without hesitation."
-John Ellis

We make a new deck in Canandaigua 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
“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.

"Great company that does awesome quality work, and most importantly really good people. Also very responsive - top customer service. Would recommend to anyone building a porch, patio, deck, etc."

- Bernard Budimir

"What a great experience with this contractor. After building my home and dealing with many different contractors I can safely say that Keystone is a cut above the rest. They handled all the bumps and dips that come with a larger project in stride and made our outdoor space amazing. The attention to finishing detail was greatly appreciated!"

- Andrew Martinez

"The crews that worked at our house were all great guys, talented, skilled, friendly and very willing to make sure the final product was something special. Everyone that sees our deck/ patio have made very favorable comments on the high quality of workmanship. Thank you Keystone for the outcome that we envisioned."

- Len Swain

Custom Decks in
Canandaigua, NY

If you own a lakehouse or home in Canandaigua, 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.

We are a custom deck builder serving the Canandaigua Lake area in NY.  We serve nearby towns and areas including:

If you live in Canandaigua or along the lake, then you know the beauty of the lake and the many activities in the surrounding area.  After a day enjoying the Ontario County Fair, spending a day on the lake or Kershaw Park, or enjoying a family day at Roseland Water Park; come home to your dream outdoor space to relax and unwind! 

Canandaigua, New York, is a picturesque city located in the Finger Lakes region of upstate New York. Nestled at the northern end of Canandaigua Lake, this charming community offers a delightful blend of natural beauty, historical significance, and cultural attractions. Canandaigua is known for its scenic lake views, outdoor recreational opportunities, and vibrant downtown area. Visitors to Canandaigua can explore its historic sites, enjoy water-based activities, and savor the local cuisine. The official government website of Canandaigua provides valuable information and resources for residents and visitors alike.

Canandaigua Lake is a major draw for visitors, offering opportunities for boating, fishing, swimming, and picnicking. The lake's clear waters and beautiful surroundings make it a popular spot for outdoor enthusiasts. Kershaw Park, located along the lake, provides a sandy beach, playgrounds, and green spaces for relaxation.

The Sonnenberg Gardens and Mansion State Historic Park is a cultural gem in Canandaigua. This historic estate features beautifully landscaped gardens, a stunning mansion, and regular cultural events and exhibitions. The park's serene atmosphere and horticultural beauty make it a popular attraction for garden enthusiasts and history buffs.

Wine enthusiasts will appreciate the Finger Lakes region's reputation for winemaking, and Canandaigua is no exception. The city is surrounded by wineries and vineyards, offering tastings and tours where visitors can sample the region's acclaimed Rieslings and other varietals.

In addition to local attractions, Canandaigua is a gateway to exploring the wider Finger Lakes region. Here are some top-rated attractions in the area according to TripAdvisor:

  1. Finger Lakes Gaming & Racetrack - A racetrack and gaming facility with slot machines, live horse racing, and dining options.

  2. Bristol Mountain - A ski resort and outdoor adventure park offering skiing, snowboarding, and zip-lining in the winter, and hiking and biking trails in the summer. Website:

  3. Grimes Glen - A beautiful gorge with waterfalls and hiking trails, perfect for nature enthusiasts. Website:

  4. Roseland Waterpark - A family-friendly water park with slides, wave pools, and aquatic fun. Website:

  5. New York Kitchen - A culinary center offering cooking classes, wine tastings, and a restaurant featuring locally sourced ingredients. Website:

  6. Ontario County Park at Gannett Hill - A scenic park with hiking trails and panoramic views of the Finger Lakes.

  7. Ganondagan State Historic Site - A Native American historic site featuring a recreated longhouse and cultural exhibits. Website:

  8. Canandaigua Wine Trail - A collection of wineries and vineyards offering wine tasting experiences. Website:

  9. Cumming Nature Center - A nature preserve with hiking trails, educational programs, and opportunities for birdwatching. Website:

  10. Naples - A nearby town known for its stunning fall foliage, hiking trails, and the Naples Grape Festival in September. 

For more information about Canandaigua, its attractions, and community resources, please visit the official government website of Canandaigua:

The ZIP code for Canandaigua, NY, is 14424.

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.

We also offer the following:

All these features will make your backyard dreams come true and make you a master host, whether you live along Canandaigua Lake or in the surrounding area!