Create

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 Harford 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
    Parties

    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 Harford 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!”

-Kris

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

    Installation

    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

    Enjoy

    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.

Integrity

We deliver on our timeframe and proposal promises.

Financing Available

We offer financing options through our partners.

It is rare to receive a process and product exactly as it is described and anticipated, but that is how the Keystone Team operated. Communication was precise and timely, the work was done with expert care and the finished project is breathtaking. Highlights throughout the process included the custom design that was so out of the box, yet perfect for the space, the easy communication with the on-site crew and the very inspirational showroom. Keystone delivers a flawless product and we are enjoying our new space.

- Karin

Highly recommend keystone for their quality work and customer service. Great communication from the office staff and our project manager throughout the whole process. We could not be happier with the final result. A big thank you to Jeremy Z., Jesse, Michael, and Fuzz.

- Eric

Johnathan and his crew were fantastic! Their level of service was absolutely outstanding. The team which built our deck was not only professional & courteous, but their quality of craftsmanship is impeccable. We would HIGHLY recommend working with Keystone Decks for your outdoor project.

- Danielle

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

Keystone Custom Decks brings top-notch decking services to Harford County, MD, transforming outdoor spaces into beautiful and functional areas. Whether you desire a cozy deck for family gatherings or a luxurious outdoor living space, our expert team addresses all your needs. With high-quality materials and skilled craftsmanship, Keystone Custom Decks ensures your deck is built to last, enhancing your home's value and aesthetics.

History of Harford County

Harford County, established on March 22, 1774, was formed from the eastern part of Baltimore County. It was named after Henry Harford, the last Proprietary Governor of Maryland and the illegitimate son of Frederick Calvert, 6th Baron Baltimore. The county played a significant role during the American Revolution, hosting the signers of the Bush Declaration in 1775, which called for independence from British rule. Havre de Grace, a city within the county, was once considered as a potential capital of the United States due to its strategic location at the top of the Chesapeake Bay​ (Wikipedia)​​ (Harford County MD)​.

For more information, visit the Harford County Government website or the Wikipedia page.

Top 10 Attractions in Harford County

  1. Havre de Grace Promenade
  2. Ladew Topiary Gardens
  3. Susquehanna State Park
  4. Steppingstone Farm Museum
  5. Jerusalem Mill Village
  6. Bulle Rock Golf Course
  7. Ripken Stadium
  8. Aberdeen Proving Ground
  9. Rockfield Manor
  10. Liriodendron Mansion

We Serve All ZIP Codes in Harford County

Harford County encompasses numerous ZIP codes, including 21001, 21005, 21009, 21010, 21015, 21017, 21028, 21034, 21040, 21047, 21050, 21078, 21082, 21084, 21085, 21111, 21130, 21132, 21154, 21160, 21161. 

Largest Cities and Towns in Harford County

  • Bel Air
  • Aberdeen
  • Havre de Grace
  • Edgewood
  • Fallston
  • Jarrettsville
  • Joppatowne
  • Forest Hill
  • Abingdon
  • Darlington
  • Pylesville
  • Whiteford
  • Street
  • Churchville
  • Cardiff

Ready to get started?