Relax In A Hot Tub or Spa

Enjoy Full Tranquility In Your Dream Outdoor Living Space

Make Your Backyard Your Perfect Space To Relax

We are a certified retailer for Bullfrog Spas and offer their full line of outdoor and portable hot tubs and spas!

Whether you include it in your backyard project or have it installed yourself, our team is here to help you find the perfect way to take your backyard relaxation to the next level.

  • Options

    Get the spa or hot tub that's perfect for your family and outdoors.

  • Private

    It's in your backyard; no public areas or wait lines.

  • stars

    Add Value

    Bring appeal to your home with the perfect space to relax and unwind.


“We had the best experience with Keystone. Outside of their superior craftsmanship, it was very clear to see that they also enjoy what they do which is so important. They kept us informed every step of the way and explained everything down to the tiny details. They treated my husband and me like family.”

Choose your perfect spa or hot tub

couple relaxing in a hot tub

A SERIES™ - Luxury

Available in three trim levels, the new A Series is an advanced and stylish collection of premium hot tubs that set an elevated standard for luxury and performance.

people enjoying an outdoor hot tub at night

X SERIES™ - Comfort

X Series™ brings you legendary engineering and reliability in a value-packed spa line. Premium features include wood-free EnduraFrame™, solid one-piece spa base, full-foam insulation, and unique lighting.

hot tub at nighttime on a back patio

M SERIES™ - Elite

M Series™ spas combine intuitive functionality, gorgeous aesthetics, and the most versatile layouts ever seen in portable spas, creating one of the most elite spa experiences available.

swimmer in flowing hot tub

SWIM SERIES™ - Performance

Enjoy an upgraded backyard water experience unlike any other with the all-new Swim Series. Build endurance and strength with preset or customizable fitness programs and space for any number of low-impact, water-based workouts.

romantic couple in a hot tub at night


STIL™ spas set the standard in modern hot tub design and represents a new concept in holistic wellness. Each massage is bio-engineered to specifically address your needs while appealing to your refined sensibilities.

What you can expect with Keystone Custom Decks ➡

Turn-key Projects

We will take care of every step in building your swimming pool.

Lifetime Workmanship Warranty

We stand behind our workmanship for the life of your project.


We complete your project on schedule and on budget.

Manufacturer Product Warranties

All our products are backed with manufacturer warranties.

Spa & Hot Tub Installer in PA, NJ, DE, & MD

Your outdoor area may have everything you need to spend time with family and friends, but does it have what you need to fully relax and soak in the moment?

Are you ready to take your outdoor relaxation and tranquility to the next level?

At Keystone Custom Decks, we offer a variety of hot tubs and spas with our outdoor projects so that you can truly relax in your outdoor space, whether you are by yourself or with loved ones!

Are you ready to start designing your dream outdoor space?

Read our FREE e-book to learn the questions you need to ask when you begin designing your dream outdoor living space!