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 Dauphin 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 Dauphin 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.

From start to finish, Keystone was the best contractor we’ve ever worked with. It is worth the cost for the peace of mind of working with a company like this. They took care of everything and did exactly what they said they were going to do. Great accessibility and communication. But obviously the best part was the actual work itself. We love our new pavilion and living space. The crew was amazing as they are expert craftsmen, but they are even better people. It was a pleasure to have Elmer, Logan, and Roman at our house. They were always punctual and friendly. They kept us up to date on all details, did a great job keeping the construction site clean and tidy, and always held anyone else coming in to do work to their same high standards. We highly recommend Keystone!

- Brian

We had a great experience with Keystone Custom Decks. Other than a few scheduling setbacks over the holiday, the deck got done in a week. Elmer and his crew were friendly, neat and very accommodating when it came to questions we had. The deck is beautiful and the quality of construction is solid. It was a hassle free experience and hope to use them again in the future!

- Cheryl

We had such a positive experience working with Keystone Custom Decks and we are so incredibly happy with the entire process from start to finish. This is true craftsmanship at its finest! We were very impressed with our project team. They were so professional, courteous, and hard working. The team arrived at the same time every single day and cleaned up, leaving the yard immaculate at the end of every work day. Our project leader, Willy, kept us very much informed about what was going on throughout our project. There were no surprises! And in the end, the cost was the same amount we were quoted for during our initial estimate appointment. Our project also started ahead of schedule and finished in 4-5 weeks! The entire process was extremely organized. We absolutely recommend using Keystone Custom Decks if you are considering investing in outdoor living space!

- Kara

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
Dauphin 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 Dauphin 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 Dauphin 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! 

Dauphin County is a beautiful place, and there are plenty of good reasons to make it your home. After all, there are plenty of local attractions in Dauphin County:

  • Hershey’s Chocolate World 
  • Pennsylvania State Capitol Building 
  • The National Civil War Museum 
  • Wildwood Park 
  • Pennsylvania Fire Museum 
  • The State Museum of Pennsylvania 
  • Hersheypark 
  • Hershey Gardens 
  • Pennsylvania Farm Show Complex and Expo Center

And plenty more. Encompassing the state capitol, Hershey, and lots of beautiful countryside, Dauphin County is a great place to explore! You can also find lots of great outdoor adventures in the area, including hiking, swimming, fishing, biking, and boating on the beautiful Susquehanna River. 

Located in Central PA, Dauphin County is a part of the Harrisburg-Carlisle Metropolitan area. It formed from part of Lancaster County in 1785 and was named after the Dauphin of France. 

Today, the county covers 558 square miles of land and water and is home to almost 300,000 people. 

Besides the state capitol and Hershey chocolate world, the county is also home to Three Mile Island Nuclear Generating Station, the site of the ominous 1979 nuclear core meltdown. The plant is now closed. 

Dauphin County, on the other hand, is very much alive! describes it like this: 

This capital county's 525 square miles and 40 municipalities each have their own local flavor. Situated within a short driving distance of Philadelphia, Pittsburgh, Baltimore, Washington , D.C. and New York City, the region contains the best of both worlds-both cosmopolitan chic and down-home country.

Like the glistening, mile-wide Susquehanna River at its western border, Dauphin County is a dazzling place to live, work and play. It is paradise for history-lovers, nature enthusiasts, nightlife-lovers, sports fans, high-tech companies, families and anyone who appreciates the county's signature "clean-and green" lifestyle.

We hope the area continues to grow and thrive for generations to come! 

If you want to improve your Dauphin County home with a new deck, porch, or patio, contact us here at Keystone Custom Decks. We would love to help you out with your project! 

We serve all boroughs and zip codes in Dauphin County, PA, including:  

17112, 17022, 17111, 17036, 17110, 17057, 17109, 17078, 17070, 17104, 17033, 17103, 17113, 17020, 17043, 17061, 17032, 17102, 17048, 17018, 17980, 17028, 17023, 17034, 17101, 17098, 17978, 17107, 17030, 17120, 17080, 17097, 17105, 17106, 17108, 17121, 17122, 17123, 17124, 17125, 17126, 17127, 17128, 17129, 17130, 17140, 17177, 17005

Berrysburg, Dauphin, Elizabethville, Gratz, Halifax, Highspire, Hummelstown, Lykens, Middletown, Millersburg, Paxtang, Penbrook, Pillow, Royalton, Steelton, Williamstown

We look forward to hearing from you!

Ready to get started?