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 Extons, 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 Exton 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.

We just finished a renovation of our backyard using Keystone and it has overall been a great experience. The level of professionalism and service we saw from them beats any contractor we have worked with in the past. The quality of their work cannot be matched either.

From the start, Ron and his team were great to work with to design our dream space, which included a new deck and patio underneath with a built-in kitchen. As construction began, Wayne and his masonry team did an amazing job laying our new flagstone patio. Finally, Elmer was a great project manager to work during the construction phase. He always kept us up to date with the progress and any scheduling changes and made sure we were happy with the progress.

We can also verify firsthand that they will 100% stand by their work We had a couple minor cosmetic issues with some of the stonework and they responded right away and made sure everything was fixed up to our liking.

If we ever had a need for another project like this, there would be no question we would use Keystone.

- Andrew

They work like a well oiled machine. Excellent craftsmanship! Skilled personnel. Honest people.

- Adeem

We chose Keystone Custom Decks based on a strong set of reviews and a strong portfolio of previous work. Our salesperson, Joe, reviewed our project and helped bring our ideas to life with the design team. The design review process was thorough and well run. We enjoyed reviewing the plans, selecting materials, and finalizing the project. KCD made it really easy as they had all of the samples to review in the showroom. Once the project began, the crew, led by Sam and Mike, were amazingly efficient, clean, and organized. The KCD crew and subcontractors were all respectful, prompt, and great to work with. Our neighbors even commented on nice everyone was. Our finished project, which was sizable, looks great, was completed on budget, and will bring us joy for many years to come. While KCD wasn't the least expensive contractor we reviewed, we definitely got what we paid for. I would definitely choose them again and will refer them to friends and neighbors in the future.

- Joe

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
Exton, 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 Exton so you can host great parties, make memories, and improve your lifestyle.

Do you feel like something is lacking in the outdoor space of your home? Perhaps the space is unusable, outdated, or undeveloped? We, the team at Keystone Custom Decks, care about partnering with you to transform your outdoor space into something beautiful and functional that adds to your quality of life and the value of your home!

Whether you want a new deck, porch, or swimming pool, we offer many customizable options to fit your needs and wishes! Host parties with confidence, enjoy time with your family or relax without distraction in your new outdoor space. We would love to partner with you to make your dream outdoor space a reality!

Call us today to take the first step toward a beautiful outdoor space!

As a homeowner in Exton, you are probably already familiar with the local scenery and atttactions that make the area unique. Some of these local attractions include: 

  • Chester Valley Trail 
  • Boot Road Park 
  • Ron’s Original Bar and Grille 
  • Movie Tavern 
  • Main Street at Exton 
  • BounceU Exton 
  • Pinot’s Palette Exton 
  • Wellington Square Bookshop 
  • Elite Escape Room 
  • Round 1
  • Parking Lot Theatres 
  • Nirvana Massage 

Exton is a CDP in Chester County, PA, with a population of 5,622 as of 2020. Exton is a major shopping district in Chester County, with both the Exton Square Mall and Main Street at Exton, along with several other shopping centers. 

The community of Exton is located at the intersection of US Route 30 and Pennsylvania route 100. The theory goes that Exton was named for being an X on the map, denoting the intersection, but it is more likely that Exton was named for one of eh several Extons in the UK. 

In the late 1940s, Exton was the home of the Newcomen Society of the United States, which was built overlooking farmland on Newcomen Road. The campus featured offices, a printing shop, library, museum, guest houses, and more. The society has since been dissolved, but the campus remains an Exton Landmark to this day and is now the headquarters for another business. 

The opening of the Exton Square Mall led to rapid growth in West Whiteland Township. Since the opening, numerous other shopping centers and office parks have been built in the township. describes Exton like this: 

Exton is a suburb of Philadelphia with a population of 6,079. Exton is in Chester County and is one of the best places to live in Pennsylvania. Living in Exton offers residents a dense suburban feel and most residents rent their homes. In Exton there are a lot of restaurants, coffee shops, and parks. Many families and young professionals live in Exton and residents tend to have moderate political views. The public schools in Exton are highly rated.

If you are a homeowner in Exton and you want to add value to your home and create a more usable outdoor space, contact us here at Keystone Custom Decks. We would be happy to help with your custom deck.

We serve all zip codes in Exton, PA, including: 

19341, 19353 

As well as all neighborhoods in Exton, Pa: 

Aspenwood, Century Oaks, Claremont Village, Eagleview, Forrest Ridge Est., Lynnbrooke, Marchwood, Pine Creek Valley, Rhondda, Silver Birches, Tarrencoyd, The Seasons, Timbers, Turnbury, Village Walk, Whiteland Ridge, Whitford Hills, Windham, Woodlark Farm, Malvern Hunt, Ridings of Malvern, The Chase At Malvern, The Reserve At Malvern, Cambridge Chase, Evian, Fox Run, Grand Oak, Meadowbrook, Pine hall, Swedesford Chase, Swedesford Woods, Whiteland Crest, Whiteland Hills, Whiteland West, Whitford Estates, Whitford Ridge, Whitford Village, Woodledge at Whitford 

And all other Exton neighborhoods and zip codes. Don’t hesitate to give us a call today! We look forward to hearing from you.

Ready to get started?