your family's dream swimming pool

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Improve your lifestyle
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Host Great Parties
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Increase Your Home Value

Take your outdoor entertainment & hosting to the next level with a truly custom pool!

Swimming Pool Contractor & Builder in Downingtown, PA

"Keystone is the best contractor we have ever dealt with. From initial contact to project finish and cleanup, they were responsive and professional.”

- John

" From the early planning stages to the ending finalizing stages, they never disappointed me in any way.”

- Chuck

Enjoy a fully custom swimming pool in your backyard

  • Infinity Edge

    Host Great

    Enjoy pool parties and backyard events with family and friends.

  • Home lifestyle woman relaxing enjoying luxury sofa patio furniture on outdoor patio

    Have a Place
    to Relax

    Leave life's worries behind you as you relax in the water.

  • Spillways

    Be Proud
    of Your Space

    Add value to your home and love your new swimming pool!

Download our catalog to see everything we offer with our custom pools!

At Keystone Custom Pools, we believe having your dream swimming pool designed and installed should be an enjoyable and stress-free process.

  • Are you ready to host amazing pool parties?

  • Do you want to spend more time outdoors with family and friends?

  • Are you looking for a turnkey swimming pool contractor who can make your deams come true?

We know what it feels like to not love your outdoor living space. That is why we install and build pools in Downingtown to make your dream outdoor area a reality. 

“Our thanks to everyone at Keystone that made our dream come true. They are all experienced and like what they do.

The project was completed ahead of schedule, and the project was well planned and expertly constructed. We love our new space!”


We make a pool as easy as possible

  • 1

    Talk To Us

    We’ll learn more about your space and schedule an estimate.

  • 2

    Design Proposal

    Receive your quote and complimentary 3D rendering.

  • Swimming Pools construction 12


    Sign your proposal and watch your dreams become reality.

  • Group of happy friends relaxing in swimming pool - Young people having fun in exclusive summer tropical vacation - Friendship, holidays and youth lifestyle concept


    Love your swimming pool and host great parties!

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 Pools:

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.

Everything was perfect from the initial planning stages through the completed build. Everyone was better than we could have ever hoped for - sales, design, processing and building. We especially appreciated the crew's expertise, experience, workmanship and caring attitude throughout our project (which both started early and finished early). We would 100% recommend Keystone Custom Decks.

- LeRoy

We loved having Keystone Custom Decks each day and we were guaranteed to be greeted daily with a smile! Their quality of work is exceptional and we could not be happier with what they created for our family. We have already been enjoying our outdoor living space with family and friends and we are so grateful for being recommended to Keystone and we highly recommend Keystone to anyone looking to create their dream outdoor living space.

- Erica

Easily the best experience we've ever had with contractors of any type, across both residential and commercial experiences. Keystone was incredibly professional, they kept us updated on progress with permits and approvals without us having to check in, they were proactive, and once they got started building, they incredibly finished on schedule.

- Hagana

Swimming Pool Contractor FAQs

An average size for a home swimming pool is 16x35 or 560-600 square feet. Depth varies from pool to pool and depends primarily on the owner's preference. 

Yes, a swimming pool can easily be incorporated into a deck or patio. If you'd like help with envisioning this or brainstorming, our design team is happy to help! 

The time it takes to install a pool can vary depending the complexity of the project. However, most fiberglass pools take 3-4 weeks to install while concrete pools take 2-3 months to install. 

Anyone that ones a swimming pool and has young children should be careful to protect their children. You also need to know that there is a risk assumed with having a swimming pool. 

However, there are several things you can do to make a swimming pool more safe for children: 

1. Put a fence around your swimming pool

2. Add a safety cover if possible

3. Alarms that sound when a person or animal enters the pool.

4. Self-locking gates

5. Gradual slope from the shallow to deep end of the pool. 

Pools are fun no matter what shape they are in. And sometimes, people prefer specific shapes for certain reasons. 

However, rectangular pools are usually considered the most versatile and are the easiest to add pool accessories like water nets. 

Yes, we would be happy to help you design a swimming pool. 

Swimming Pool Installer in
Downingtown, PA

As a homeowner, you want a backyard that allows you to spend quality time with friends and family.  The problem is your current backyard isn't being fully utilized, but it's the perfect place for a swimming pool.  Keystone Custom Pools designs, builds, and installs beautiful custom pools throughout Downingtown so you can host great parties, make memories, and improve your lifestyle.

Want to add more space to your Downingtown home where you can hang out and host parties? 

There’s nothing more fun than having friends and family over and sharing your backyard. So, what would a new porch, deck, or patio do to enhance your hosting experience? 

Keystone Custom Decks loves helping homeowners bring their hosting space and outdoor areas to life by creating high-quality and deeply beautiful spaces. Give us a call to start your project today! 

Downingtown is a borough in Chester County, Pennsylvania, United States, roughly 33 miles (53 km) west of Philadelphia. As of the 2020 census, it had a population of 7,898. Downingtown was settled by European colonists in the early 18th century and has a number of historic buildings and structures.

Some of the top things to do in Downingtown include, 

  • The Struble Trail 
  • Lloyd Park
  • Dowlin Forge Park
  • Svaroopa Vidya Ashram

Locals enjoy many good places to eat, including…

  • Pomodoro Pizza & Italian Restuarant
  • Victory Brewing Company
  • Station Taproom
  • Green Street Grill
  • Amani's BYOB
  • Bakers of Buffington

The town of Downingtown is located along the Lincoln Highway (now part of U.S. Route 30) which runs from the East Coast to the West Coast. It was an early westward road in the wagon days as the Philadelphia and Lancaster Turnpike. The Lincoln Highway was the first paved road to cross the nation from the Atlantic to the Pacific. Construction of the Pennsylvania Turnpike started in the early 1940s and was completed in the early 1950s; it runs north of US 30, bypassing Downingtown.

According to Wikipedia, the city has initiated some widespread and continuing renovation in downtown, particularly to the streetscape; private owners have similarly renovated many commercial buildings. There has also been residential development on recovered industrial lands (brown fields) in the southeastern part of the borough. Downingtown is the location of some large regional and national businesses, including First National Bank of Chester County, and Victory Brewing Company, and formerly DNB First (acquired by S&T Bank in 2019).

According to

Downingtown is experiencing a revitalization with many new projects currently underway, as well as, proposed projects which will enhance our future growth and provide many types of opportunities for our residents. The anticipated River Station project, a transit oriented development, is scheduled to begin construction in the near future by The Hankin Group. The development will be constructed at the former Sonoco Paper Mill site. River Station will provide opportunities for new commercial businesses, restaurants and residential living with easy access to transit and pedestrian trails.

If you live in or near Downingtown and would like to revolutionize your backyard space, call us at Keystone Custom Decks today! We would love to help you! 

We look forward to hearing from you!

Ready to get started?