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 Chester County, 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 Chester County 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.

Keystone just finished rebuilding an old deck, adding a beautiful covered portion, enhancing an existing roofed area, building a beautiful fireplace and replacing a paver patio. I cannot believe how awesome their work is and how well the project went from design to construction to cleanup. Mike Stolzfus, the project manager, was a pleasure to work with. He and his crew, and Steve Ebersole, the Mason foreman and his crew, were professional, knowledgeable and extremely diligent in their work and an absolute delight to work with. I would recommend Keystone Custom Decks to anyone.

- Ed

Jeremy and his crew did a fantastic job building our new deck. They were always on time, answered all of our questions, and did beautiful work.

- Dirk

Keystone Custom Deck truly created our dream outdoor space. The entire process was smooth and enjoyable -from the beginning through the completion of the project. When Joe L. came out for our initial sales meeting we really appreciated the time he took to get to know our family and how we planned to use the space. He was knowledgeable, professional and creative. We enjoyed our visit to the showroom with Michael E. It was a great opportunity to see all of the options and styles of materials. And now on to the best part of the project…our construction crew!!! Steve E, Calvin and Will were truly amazing!! Steve was our project manager and he was very good with daily communication as necessary and extremely skilled in his work. Calvin and Will were above and beyond fabulous too. They all are meticulous in their work and made our entire family feel like they cared about our new space like it was their own. We loved having them 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

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

Have you ever dreamed of adding more usable space to your home in Chester County, PA? 

Maybe you wish you could host amazing parties, have space for enjoying friends and family, or just have a place to relax after a long day at work. 

A new deck, porch, or patio enables you to do all these things, besides adding value and beauty to your home! 

At Keystone Custom Decks we want to help you make your vision a reality. Give us a call and we would be happy to help with your project! 

If you live in Chester County, PA, you are probably already familiar with some of the local attractions in the area, which include: 

  • Longwood Gardens
  • Marsh Creek State Park
  • Natural Lands ChesLen Preserve
  • Chaddsford Winery
  • QVC Studio Park
  • American Helicopter Museum & Education Center
  • And many more parks and areas of interest! 


Chester County is a part of the greater Philadelphia-Camden-Wilmington metropolitan area and has a population of over 520,000 people. The county covers a total of 759 square miles. The area is colloquially known as “Chesco.” 

We build outdoor structures for homes in all cities and boroughs in Chester County, including: 

Coatesville, Atglen, Avondale, Downingtown, Elverson, Honey Brook, Kennett Square, Malvern, Modena, Oxford, Parkesburg, Phoenixville, Spring City, West Chester (county seat), and West Grove.

We also service a variety of other townships and unincorporated communities. 

We service all zip codes in Chester County, including:

19301, 19311, 19310, 19316, 19312, 19320, 19330, 19335, 19333, 19341, 19344, 19343, 19348, 19351, 19350, 19352, 19355, 19354, 19358, 19357, 19360, 19365, 19363, 19367, 19366, 19369, 19372, 19375, 19374, 19380, 19382, 19390, 19383, 19421, 19425, 19442, 19457, 19465, 19470, 19475, 19480, 19481, 19520 

We look forward to hearing from you!

Ready to get started?