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 Lancaster 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 Lancaster 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.

Outstanding experience from start to finish. Dave Stoltzfus and crew did a great job and made sure every detail was perfect. It was a pleasure dealing with this work crew and would highly recommend them to anyone seeking a skilled and professional installation.

- Tom

Keystone designed a beautiful deck to my specifications. The deck was completed quickly and with good quality. Ivan and his crew were very professional and courteous and easy to work with. Ivan made sure to communicate clearly his expectations as frequently as needed, keeping me informed of progress and expected completion.

- Raymon

We used Keystone to add a patio and modify an existing deck. From design through deliver the team was superb. I was particularly impressed with the professionalism, communication, and quality of the work of the on-site team. They were clear around the timeline and communicated proactively any changes. The final result was a beautiful patio that was delivered on schedule and immediately ready for use!

- Matthew

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

The outdoor space in your home is a great way to spend time with friends and family, but if it needs to be updated or usable then you're missing out!

The team at Keystone Custom Decks will help you turn your outdoor space into a dream come true! We're committed to simplifying and making this process easy for all parties involved. Our three-step process consists of an estimate followed by two design proposals which ultimately lead up to installation day so that we can deliver beautiful results for everyone's enjoyment (and satisfaction).

Call us today and we can get started!

If you live in Lancaster County, PA, you already know about the lovely rolling hills, farmland, and other attractions in the area: 

  • Susquehannock State Park
  • Lancaster County Central Park
  • Long’s Park & Amphitheater
  • The many farms and Amish attractions
  • Root’s Country Market & Auction
  • Dozens of amazing home-style cooking restaurants
  • And many more parks and areas of interest!

Lancaster County is a popular tourist attraction, known for its food, farming countryside, and widespread Amish community. 

An original part of William Penn’s Pennsylvania charter, Lancaster County was named after the city of Lancaster in Lancashire, England. Lancaster was the fourth colony organized from Penn’s Charter. 

Today, the county covers a total of 984 square miles of land and is home to almost 600,000 people. It’s best known for its large population of Amish and other strains of Anabaptists 

We build custom decks in all cities and boroughs in Lancaster County, including:

Lancaster City, Adamstown, Akron, Christiana, Columbia, Denver, East Petersburg, Elizabethtown, Ephrata, Lititz, Manheim, Marietta, Millersville, Mount Joy, Mountville, New Holland, Quarryville, Strasburg, and Terre Hill.

We also service a variety of other townships and unincorporated communities, and we service all zip codes in Lancaster County including: 


17368, 17501, 17502, 17503, 17504, 17505, 17506, 17507, 17508, 17509, 17512, 17516, 17517, 17518, 17519, 17520, 17521, 17522, 17527, 17528, 17529, 17532, 17533, 17534, 17535, 17536, 17537, 17538, 17540, 17543, 17545, 17547, 17549, 17550, 17551, 17552, 17554, 17555, 17557, 17560, 17562, 17022, 17563,17564, 17565, 19362, 17566, 17567, 17568, 17569, 17570, 17572, 17573, 17576, 17578, 17579, 17580, 17581, 17582, 17584, 17585, 17601, 17602, 17603, 17604, 17699, 17073, 19501,19543

Ready to get started?