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 Bel Air, 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 Bel Air 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.

We are very pleased with Keystone Custom Decks. The design process was very helpful in visualizing our new outdoor living space and helped us to easily make changes to the final plan. The construction process was very efficient and we were very happy with the care, attention to detail and craftsmanship of the build crew. Overall, the experience was great and would highly recommend Keystone to others looking for a unique and high quality outdoor space.

- David

Keystone did a great job building our dream deck/outdoor space. Dave and his team were very professional, efficient, and did amazing work. I would highly recommend them to anyone looking to elevate their outdoor living space(s).

- Andrew

The deck is beautifully built and well-designed. We asked a lot of questions during the planning so that we would fully understand the plan. Then, the crew executed the plan with precision. We couldn't ask for a better crew!

- K Doherty

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
Bel Air, 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 Bel Air so you can host great parties, make memories, and improve your lifestyle.

At Keystone Custom Decks, we understand the unique charm and challenges of creating perfect outdoor living spaces in Bel Air, Maryland. Homeowners in this vibrant town seek beautiful, functional decks that not only enhance their enjoyment of the outdoors but also add value to their homes. We specialize in custom decks, porches, and patios that reflect the individual style and needs of each homeowner, ensuring every project is a perfect fit for both the home and its surroundings. With meticulous attention to detail, high-quality materials, and a commitment to exceptional craftsmanship, Keystone Custom Decks is dedicated to bringing your outdoor living dreams to life.

A Rich Tapestry of History in Bel Air

Bel Air's history is a colorful narrative that contributes to its unique character today. Founded in 1780, Bel Air served as the center for Harford County’s political, economic, and cultural activities. Initially a small village, it was designated as the county seat in 1782, which spurred its growth and development. Throughout the 19th and 20th centuries, Bel Air evolved from a rural market town into a suburban enclave, with the construction of the Ma & Pa Railroad enhancing its connectivity to Baltimore and fostering economic growth.

In the 20th century, Bel Air's landscape was further shaped by its proximity to major military installations like Aberdeen Proving Ground, bringing a diverse population and new amenities to the area. Today, Bel Air retains its historical charm through well-preserved architecture and a commitment to celebrating its rich heritage, evident in the many historic sites and museums that dot the town. For more details on Bel Air’s historical journey, visit the Bel Air government website and its Wikipedia page.

Top 10 Attractions in Bel Air

  1. Liriodendron Mansion: This historic 1898 mansion offers a glimpse into early 20th-century opulence, set in beautiful grounds ideal for walking and relaxation.
  2. Harford Artists Gallery: Showcasing local art within the charming surroundings of Armory Marketplace.
  3. Ma & Pa Heritage Trail: A scenic trail perfect for hiking, biking, and experiencing Bel Air's natural landscapes.
  4. Bel Air Armory: Hosts community events and private gatherings, this historic building is central to Bel Air's community life.
  5. Rockfield Manor: A historic manor house and park offering events and community festivals.
  6. Heavenly Waters Park: A favorite local spot for sports, picnics, and outdoor activities.
  7. Shamrock Park: Featuring playgrounds, walking paths, and concert series during the summer months.
  8. Hays House Museum: Explore life in the early 19th century in this well-preserved historical home.
  9. Harford Mall: The main shopping destination in Bel Air with a range of retail options.
  10. Bel Air Downtown Alliance: Organizes events and fosters a thriving community spirit in the heart of Bel Air.

ZIP Codes in Bel Air

21014, 21015

Largest Neighborhoods and Suburbs of Bel Air

  1. Greenridge
  2. Hunters Run
  3. Southampton
  4. Bright Oaks
  5. Fairwind Farms
  6. Fox Bow
  7. Glenwood
  8. Majors Choice
  9. Marywood
  10. Tudor Manor
  11. Wakefield Meadows
  12. Woodside

For more information about the zip codes in Bel Air, please visit United States ZIP Codes.

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