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 New Castle County, DE

"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 New Castle 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.

My wife and I recently had the pleasure of working with Keystone Custom Decks to transform our outdoor living space, and we couldn't be more thrilled with the results. From start to finish, the entire Keystone team exceeded our expectations in every way. Ron’s professionalism and attention to detail set a positive tone from the outset. Sarah Schupp was instrumental in guiding us through various design options we hadn’t even considered. Her expertise and recommendations were spot on, making the decision-making process much easier for us. Permitting, often a lengthy process, was handled with exceptional efficiency by Paul Campbell. The construction phase, led by our project manager David Beiler and his outstanding crew, Chris and Ben, was nothing short of exemplary. This includes the masonry crew led by Will. Their craftsmanship, attention to detail, and commitment to quality were evident in every aspect of the build. They kept us informed daily and made sure all minor decisions were discussed with us to ensure our satisfaction. The end result is a beautiful, cohesive outdoor space that has already become the heart of our home. Throughout the month-long project, we not only admired the team's professionalism and their friendliness and enthusiasm made the entire process enjoyable. It felt bittersweet to see them go once the project was completed. In summary, Keystone Custom Decks has earned five stars in people, process, and quality. Their expertise, perfect process execution, and a team that truly cares about their work have resulted in an outdoor living space we love. We highly recommend Keystone Custom Decks and look forward to working with them again in the future. Thank you, Keystone team, for making our dream a reality!

- Chris

The process was fantastic from start to finish. Ron walked us through all of the design, offered great suggestions, and communication was thorough throughout. When Michael and his crew came to build, I could not have been more impressed. There was not a day they were at the house that my wife and I did not turn to each other and say how grateful we were that we hired Keystone. Michael and the entire crew had such an attention to detail and pride in their work. They took time to talk to my 2 year old son, and he could not have been more excited to see them all show up every morning. The piece that stood out most to us, was every opportunity they had to go above and beyond what I would have expected, they did. They did not just want to get the job done, they wanted perfection. Could not have been happier we made the call to go with Keystone, and Michael and his crew impressed day in and day out.

- Lance

From start to finish, our family had a stellar experience with the entire Keystone team. This was a big project for us and we engaged with several groups before moving forward with Keystone. For us, we had the most confidence in their team to make our vision a reality. Our salea rep Ron listened to our requests and was patient through several design revisions and tweaks. DJ and his crew were incredible through the build process and day by day always communicated what was happening and what to expect. We couldn’t be happier with the final outcome and look forward to enjoying this space for years to come.

- Andrew

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
New Castle County, DE

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

Swimming pool installations in New Castle County, DE, offer homeowners the perfect way to enhance their outdoor spaces and create a relaxing retreat right in their backyard. Whether you're dreaming of a sleek, modern pool or a family-friendly oasis, our expert team is here to bring your vision to life. We understand the specific needs and preferences of New Castle County residents, from navigating local regulations to ensuring that your pool complements the style of your home. With a focus on quality craftsmanship and customer satisfaction, we handle every aspect of the installation process, so you can enjoy a stress-free experience and a beautiful, long-lasting pool.

New Castle County, the northernmost of Delaware's three counties, has a rich history that dates back to the early 17th century. Originally settled by the Dutch in 1651, the area was later taken over by the English and became an important colonial hub. The county seat, Wilmington, is Delaware’s largest city and has been a significant center for commerce and industry throughout the state's history. New Castle County played a key role in America's early industrial development, particularly through the DuPont family, whose chemical empire was founded here. The county is also home to numerous historic sites, such as the Old New Castle Courthouse and the Read House and Gardens, which reflect its long and storied past. For more about New Castle County's history, visit the official New Castle County site or its Wikipedia page.

Top 10 Attractions in New Castle County, DE

  1. Hagley Museum and Library
  2. Nemours Estate
  3. Delaware Art Museum
  4. Winterthur Museum, Garden & Library
  5. Brandywine Creek State Park
  6. The Grand Opera House
  7. Historic New Castle
  8. Rockwood Park & Museum
  9. Delaware Museum of Nature and Science
  10. Battery Park

We serve all Zip Codes in New Castle County, DE

19701, 19702, 19703, 19706, 19707, 19708, 19709, 19710, 19711, 19712, 19713, 19714, 19715, 19716, 19717, 19718, 19720, 19721, 19725, 19726, 19730, 19731, 19732, 19733, 19734, 19735, 19736, 19801, 19802, 19803, 19804, 19805, 19806, 19807, 19808, 19809, 19810, 19850, 19880, 19884, 19885, 19886, 19890, 19891, 19892, 19893, 19894, 19895, 19896, 19897, 19898, 19899.

Largest Cities and Towns in New Castle County, DE

Wilmington, Newark, Middletown, Bear, New Castle, Glasgow, Hockessin, Claymont, Pike Creek, Brookside, Smyrna, Greenville, Townsend, Delaware City, Odessa.

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