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 Delaware County, PA

"Great experience from start to finish. Our project turned out even better than we thought.”

- Dan

"John Earvin and his crew gave us a beautiful, custom deck that exceeded our expectations. John and his crew were professional, prompt and incredibly gifted at their craft. We truly have the custom deck that has the envy of the neighborhood. I highly recommend them to anyone who is looking for their own dream deck. I can't thank you enough for holding my hand through initial proposal to final inspection. They even sent my daughter a beautiful bouquet of flowers for her 6th birthday. We are so grateful to Keystone, John Earvin and his crew for making our dream deck become reality!!”

- Sean

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 Delaware 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.

Absolutely amazing! From start to finish, the staff and crew were great! The communication was excellent, and the daily progress was unbelievable. The final project is better than we could have imagined. Keystone Custom Decks definitely goes the extra mile in making sure every detail is not only met but met perfectly. I highly recommend them for any type of outdoor living space.

- Jessica

Sarah and the team at keystone are very friendly and helpful. She was very nice and friendly. The office staff are great 5 stars all day.

- Jeffery

Wonderful experience with Keystone. Ron Yoder took his time to sit with us and help plan out the exact outdoor space we wanted. John Ervin and his crew’s craftsmanship was excellent and they kept an exceptionally clean work place. Pricing was fair and we were not surprised with any change orders. Just an overall fantastic experience. We cannot recommend Keystone enough we use our space almost every day! Thank you so much!

- Michael

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

At Keystone Custom Decks, every team member is committed to the success of your new porch and outdoor project, and also in keeping you informed throughout the process. From the initial estimate to the final product, our team of porch builders and porch contractors will walk with you each step and keep you informed.

We give you a detailed proposal and complimentary 3D rendering of your project. We want you to be able to see what the finished project will look like before construction begins, that way you can make any necessary changes.

If you are looking to create your dream outdoor living space with a local porch builder in Delaware County, PA, then look no further than Keystone Custom Decks. We look forward to serving you in the process and becoming your porch contractor!

Read Reviews From Customers In Delaware County, PA:

Joanne A:  "Keystone Custom Decks is top notch! After meeting with Ron Yoder, there was no doubt that they could make our project come to life. Thank you Ron, for everything. We are so incredibly happy with our experience with this fine company and highly recommend them to everyone who is considering a backyard transformation. Their attention to every single detail and their superior workmanship is by far the very BEST! Our site manager, Steven, and his team of Jay and Willy were a pleasure to have here every day. They arrived at the same time every single morning and worked continuously all day, and cleaned up after each day. Thank you Steven, Jay and Willy for your outstanding workmanship and top notch professionalism! Thank you to everyone else behind the scenes at Keystone who helped to transform our backyard into more than we ever dreamed of!"

Hayler O:  "We had a pergola installed over a portion of our deck yesterday. The crew arrived right on time. They installed the pergola in a timely professional manner. It looks beautiful and really enhances the appearance of our home. And the price was significantly less than other estimates. The crew cleaned up afterwards. Nice group of men. If I need any deck work, this is the company I will call."

Ryan D:  "We put up a pavilion in the back yard and did a flagstone front walkway. Levi, Steve, Amos, and Eric were in and out in about 8 working days. The guys show up early and stay late. Left a very clean site every day, and worked with us on changes. All of the little details were taken care of and they did 100% of the job in a timely fashion....something that is unfortunately rare when hiring contractors. I would recommend to anyone and hire them again for any project."

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