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 Montgomery County, PA

"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 Montgomery 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.

Keystone is the most professional, communicative builder delivering excellent workmanship. Each member of the company through each step of the project was pleasant, positive offering incredible customer service. We are thrilled with our large and extensive deck project.

- Joy

The entire Keystone Custom Decks crew was outstanding to work with. From the initial planning and presentation stage to the permitting process through project completion, the entire team was professional and exceptional and kept us updated every step of the way. Jonathan and his team were absolutely amazing and thoughtful and clearly took pride in their work. They created an outdoor space that was better than we imagined and their craftsmanship is phenomenal. We can’t wait to enjoy our new space this summer!

- Amy

I cannot express enough praise for Levi Stoltzfoos crew and the Keystone Custom Decks team. Their work on our covered deck, fireplace, bar area, and retractable screens was absolutely exceptional. Working with them was a pleasure from start to finish. They helped us craft a three-season space that we'll cherish for years to come. Every member of their team was professional and accommodating. They adhered to the construction timeline meticulously and maintained clear communication throughout. Their attention to cleanliness on the job site was remarkable. Levi's suggestions during construction were invaluable. Keystone Custom Decks truly exceeded our expectations!

- John

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

At Keystone Custom Decks, we know you want to create and live in your dream outdoor living space.  For over 30 years, our company and team have committed ourselves to making these dreams come true for you and your family.

We are a custom deck builder in Montgomery County, PA, and the surrounding counties and locations.  Relax in your beautiful, custom backyard and outdoor area after a day enjoying the many nearby parks, cities, and other things to do!

If you live in Montgomery County, PA, you've probably gotten to enjoy some of the various attractions the county has to offer. These include: 

  1. Valley Forge National Historical Park
  2. Longwood Gardens
  3. Elmwood Park Zoo
  4. Morris Arboretum
  5. King of Prussia Mall
  6. Peter Wentz Farmstead
  7. Pennypacker Mills
  8. Montgomery County Community College Fine Arts Center
  9. Skippack Village
  10. The Speaker's House
  11. And more!

Originally home to the Lenni Lenape Native American tribe, Montgomery County boasts beautiful countryside. William Penn granted the area to Welch Quakers in 1682, but its didn't become a county until 1784. It was named after Richard Montgomery, a Civil War general who died in the Battle of Quebec. 

The area has much historical significance. During the Revolutionary War, George Washington camped at Valley Forge for the winter of 1777-1778. The Valley Forge National Historical Park continues to draw visitors from all over the United States. The County was an important area for the Underground Railroad, as many Quakers and other activists living there aided slaves on their journey to freedom. 

The Mongomery County tourist site states the following: 

Montgomery is the third largest and second wealthiest county in PA. The county was formed in 1784. The land was originally part of Philadelphia County.

We are happy to serve all the towns and zip codes in Montgomery County:

19001, 19002, 19003, 19004, 19422, 19405, 19009, 19012, 19426, 18915, 19428, 19025, 18041, 19027, 19031, 19034, 19435, 19525, 19035, 19038, 18054, 19436, 19437, 19438, 19040, 19440, 19041, 19044, 19006, 19046, 19406, 19444, 19446, 19066, 19453, 18936, 19072, 19401, 19403, 19454, 19456, 19075, 18070, 18073, 18074, 19462, 19464, 18076, 19468, 19472, 19473, 19474, 18964, 19477, 18969, 19090, 19095, 19096, 19492

Abington, Ambler, Ardmore, Audubon, Bala Cynwyd, Blue Bell, Bridgeport, Bryn Athyn, Cedars, Cheltenham, Collegeville, Colmar, Conshohocken, Creamery, Dresher, Eagleville, East Greenville, Elkins Park, Fairview Village, Flourtown, Fort Washington, Franconia, Frederick, Gilbertsville, Gladwyne, Glenside, Green Lane, Gwynedd, Gwynedd Valley, Harleysville, Hatboro, Hatfield, Haverford, Horsham, Huntingdon Valley, Jenkintown, King of Prussia, Kulpsville, Lafayette Hill, Lansdale, Lederach, Mainland, Merion Station, Mont Clare, Montgomeryville, Narberth, Norristown, North Wales, Oaks, Oreland, Palm, Pennsburg, Perkiomenville, Plymouth Meeting, Pottstown, Red Hill, Royersford, Salford, Salfordville, Sassamansville, Schwenksville, Skippack, Souderton, Spring House, Spring Mount, Sumneytown, Telford, Tylersport, West Point, Willow Grove, Worcester, Woxall, Wyncote, Wynnewood, Zieglerville.

Ready to get started?