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 Cecil County, MD

"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 Cecil 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.

Our onsite crew, led by Matt and including Nate, Ray, Timmy and Jonathan, did a great job. Very respectful as they were arriving in the morning and the family is pulling in and out of the driveway. Left the worksite spotless at the end of each day. We had one lingering open project need due to rain and Levy came and finished up.

- Drew

5 star ratings usually mean great service. Rarely do they mean exceptional and above and beyond. But that is what Sammy (project manager), Marlon, and Leon achieved. Unfortunately, they have probably set too high a benchmark, one unlikely to be achieved by any future contractors. They've ruined us. Keystone Custom Decks charges a premium for their services. Would I go with them again? In a heartbeat. Because you are paying for quality craftsmanship, expertise, and the hardest working, most meticulous, and nicest people you have ever met. I wish they were our neighbors. From start to finish, Sammy and team communicated clearly, were professional, punctual and trustworthy through and through. It is my privilege to post this review as the first to specifically mention Sammy (I think), and you would be lucky if you have the privilege of getting Sammy and company to work on your next home improvement project. There just aren't that many companies and people like this anymore. Give KCD a visit. Their showroom is beautiful and inspiring. The entire staff from receptionists to sales people (Ron!) to builders are phenomenal. You're in for a "treat."

- Brian

Daniel and his crew of Jason, Ivan Ray, and the rest of the subcontractors, such as Calvin, the Stone Mason, and everyone else that worked on our project were the most amazing contractors!!! It was the best experience we have ever had with getting work done on our home!! I am very particular, and they were always receptive to our ideas and questions. Keystone did an amazing job from the initial salesman, Ron, to the beautiful renderings that were not beat by any other companies we looked at, to the absolute perfect craftsmanship and work ethic of the crew. I cannot say enough about these guys, and I am trying to figure out what other project Keystone can do in our home to get them back! A perfect 11! Just took one sample photo because they are not even done yet, but we are so close!

- Liz

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
Cecil County, MD

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

Keystone Custom Decks understands that residents of Cecil County, Maryland, cherish their beautiful outdoor spaces and historical surroundings. As a leading provider of custom deck solutions, Keystone helps homeowners enhance their properties with decks, patios, and outdoor living areas that are not only aesthetically pleasing but also functional and durable. Whether you're looking to create a cozy nook for family gatherings near the Chesapeake Bay or a robust entertainment space that respects the historic integrity of your property, Keystone Custom Decks has the expertise to make your vision come to life. Their commitment to quality materials and craftsmanship ensures that each project complements the county’s picturesque landscapes and increases property values.

Cecil County's Rich History

Cecil County, nestled at Maryland's northeastern corner, has a rich history dating back to its founding in 1674. Initially part of a larger Baltimore County, it has evolved significantly through the centuries. The area was a crucial trading hub, particularly for the Susquehannocks and later European settlers like Augustine Herman, who played a significant role in the county's creation. Cecil County thrived as a shipping center during the colonial period, exporting tobacco and animal skins, which were vital to the local economy. Post-colonial development saw the rise of industries, with the establishment of Principio Furnace, which became a significant iron exporter. The Chesapeake and Delaware Canal, completed in the 19th century, further boosted the local economy by enhancing trade routes. Today, Cecil County balances its historical heritage with modern advancements, making it a unique place to live and visit​ (Wikipedia)​​ (VisitMaryland)​.

Top 10 Attractions in Cecil County

  1. Elk Neck State Park - Enjoy hiking, swimming, and camping in this scenic park that offers stunning views of the Chesapeake Bay.
  2. Mount Harmon Plantation - Explore the rich history of this tobacco plantation and experience colonial life through re-enactments and tours.
  3. Fair Hill Natural Resources Management Area - Ideal for horseback riding, fishing, and nature walks, this area covers over 5,600 acres.
  4. C&D Canal Museum - Learn about the canal's construction and its impact on regional development.
  5. Upper Bay Museum - This museum showcases the maritime history of the Upper Chesapeake Bay.
  6. Turkey Point Lighthouse - Hike up to this historic lighthouse for panoramic views of the bay.
  7. Gilpin’s Falls Covered Bridge - A picturesque spot perfect for photography and history enthusiasts.
  8. Conowingo Dam - Observe American bald eagles and take guided tours to learn about hydroelectric power.
  9. Perryville Railroad Museum - Discover the history of railroads in this informative local museum.
  10. Cecil County Dragway - Experience the thrill of drag racing at this popular venue.

ZIP Codes in Cecil County, MD

The main ZIP Codes in Cecil County include 21901 (North East), 21911 (Rising Sun), 21921 (Elkton), and several others, ensuring comprehensive coverage across the county​ (CCGov)​.

Largest Cities and Towns in Cecil County

Cecil County is home to several significant towns and cities, including Elkton, the county seat, and North East. Other key locations are Perryville, Rising Sun, and Port Deposit, each offering unique attractions and community events that highlight the county’s diverse culture and history​ (Wikipedia)​.

For more details, visit the Cecil County Official Website and Cecil County on Wikipedia.

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