Custom gunite spas added to your existing pool or built into a new one, integrated, spillover, or standalone.
Cristallo adds custom gunite spas to existing pools and builds them into new pools, designed and constructed by the same team that builds the pool itself. A spa can be integrated with a shared wall and spillover, built as a standalone unit, or designed as a swim spa, each matched to your pool’s finish and equipment.
Adding A Spa To An Existing Pool
Yes, a spa can be added to most existing pools, and it is one of the most popular upgrades Cristallo builds. The spa is tied into the existing pool’s structure, plumbing, and equipment where possible, or given its own heater and pump when the existing equipment cannot carry the extra load. The work involves cutting in the new shell, plumbing the jets and spillover, matching the finish and tile to the existing pool, and re-permitting the modified structure. Because Cristallo builds pools as well as adds spas, the addition is engineered to match how the original pool was built rather than bolted on as an afterthought, which is what keeps the finish, water level, and equipment working as one system afterward.
Types Of Spa We Build
Cristallo builds three main spa configurations, chosen by how you want to use it and how it sits with the pool. An integrated spillover spa shares a wall with the pool and spills into it, the most popular look for a custom backyard, with the spa raised and water cascading over a sheer edge. A standalone spa sits separately from the pool, useful when the pool layout or lot does not suit an attached spa. A swim spa is a larger unit with a current to swim against, for owners who want exercise as well as relaxation. All three are built in gunite, the same material as the pool, so they last in Florida’s heat and salt air.
Spa Features And Finishes
A Cristallo spa is finished and equipped to match the pool, not as a generic drop-in. Interior finishes come from the same premium lines as the pool, Pebble Technology (PebbleTec), Wet Edge, and NPT, with waterline and feature tile from Lunada Bay, Bisazza, or Artistry in Mosaics. Spas are built with the jet layout, bench seating, heating, and lighting designed in from the start, and can carry the same FX Luminaire or Kichler lighting and saltwater or automation systems as the pool. Designing the spa with the pool is what keeps the finishes, water features, and controls consistent across the whole backyard.
New Spa With A New Pool, Or Added Later
A spa can be built at the same time as a new pool or added to a pool you already own, and the right choice depends on timing and budget. Building the spa with a new pool is the most cost-effective path, because the shell, plumbing, and equipment are designed and poured together. Adding a spa later is the common route for owners who did not include one originally or who bought a home with an existing pool, and it is fully doable, with the spa tied into the existing system or given its own equipment. Either way, the spa is designed as part of the backyard rather than a separate project.
How A Spa Addition Works, Step By Step
- Design and assessment: The team visits to confirm your pool, equipment, and lot suit a spa, then renders the spa in 3D against your existing pool so you approve the look before any work starts.
- Permitting: The modified structure is re-permitted with the county, since adding a spa changes the pool's engineering and plumbing on record.
- Construction: The new shell is cut in and formed, the spa is shot in gunite, and the jets, spillover, and plumbing are tied into the pool or to dedicated equipment.
- Finish and tile: The interior finish and waterline tile are matched to the existing pool, so the spa reads as part of the original design.
- Equipment and startup: The heater, pump, lighting, and automation are connected and tested, the water is balanced, and the spa is handed over ready to use.
What A Spa Addition Costs
The cost of adding a spa depends on a few things, and Cristallo gives a firm number after the design visit rather than a guess online. The main factors are whether the spa ties into the pool’s existing heater and pump or needs its own, the spa type (an integrated spillover spa is simpler than a swim spa), the finish and tile chosen, and the features added, such as extra jets, lighting, or automation. Building a spa with a new pool costs less than adding one later, because the shell and equipment are designed together rather than cut into an existing structure. Because every pool and lot is different, Cristallo prices each spa addition individually after seeing the pool, so the quote reflects the real work rather than a generic range.
Why Add a Spa to Your Pool
Cristallo designs and builds the spa with the same team, finishes, and engineering as its custom pools, so the spa matches the pool instead of looking added on. The team renders the spa in 3D with the rest of the backyard before construction, so you see how the spillover, seating, and finish will look against your existing pool before committing. Cristallo holds Florida contractor licenses CPC1458452 and CBC 1255924, won the PHTA International Award of Excellence in 2025 and the Pinnacle Award in 2024, and has built custom pools and spas since 2011. For an addition that has to match an existing pool exactly, that build experience is what makes the difference between a spa that matches and one that looks bolted on.
Spa Addition Vs. Portable Hot Tub
Dimension | Built-in gunite spa (Cristallo) | Portable hot tub |
|---|---|---|
Integration | Matched to the pool, shared water/finish | Separate unit, no pool tie-in |
Construction | Custom gunite, permanent | Pre-molded acrylic, movable |
Design | Any shape, spillover into pool | Fixed factory shapes |
Lifespan in FL | Decades, like the pool | Shorter; sits in the sun |
Best for | Owners who want it part of the backyard | Renters or temporary setups |
A built-in gunite spa is the right choice when you want the spa to be part of the pool and the backyard, matched in finish and tied into the same water and equipment. A portable hot tub is cheaper upfront and movable, which suits renters or temporary setups, but it sits as a separate acrylic unit that does not integrate with the pool. For a custom pool owner, a built-in spa protects the look and value of the backyard in a way a plug-in unit cannot.
Where We Build Spas
Cristallo builds and adds spas across Palm Beach County and Martin County, including West Palm Beach, Palm Beach Gardens, Boynton Beach, Delray Beach, Lake Worth, Jupiter, and Palm City. For a spa addition in your town, the city spa pages cover each area, and the team can confirm your pool and lot suit a spa addition on the first visit.
FAQ
Can A Spa Be Added To An Existing Pool?
Yes. A spa can be added to most existing pools by tying it into the pool’s structure, plumbing, and equipment, or giving it its own heater and pump where needed. Cristallo cuts in the new shell, plumbs the jets and spillover, and matches the finish and tile to the existing pool.
How Long Does It Take To Add A Spa To A Pool?
Most spa additions to an existing pool take a few weeks of on-site work once the design is approved and permits clear. The exact timeline depends on whether the spa ties into existing equipment or needs its own, and on the finish and features chosen. The team gives you a schedule at the design stage.
What Types Of Spa Can You Build?
Cristallo builds integrated spillover spas (shared with the pool, spilling over a raised edge), standalone spas (separate from the pool), and swim spas (larger, with a current to swim against). All three are built in gunite to match the durability of the pool.
Is It Cheaper To Add A Spa During A New Pool Build?
Yes. Building the spa at the same time as a new pool is the most cost-effective path, because the shell, plumbing, and equipment are designed and poured together. Adding a spa to an existing pool is fully doable but involves cutting into and re-permitting the existing structure, which adds work.
Will The Spa Match My Existing Pool?
Yes. Cristallo finishes the spa in the same premium lines as the pool, such as Pebble Technology, Wet Edge, or NPT, with tile from Lunada Bay or Bisazza, so the spa matches rather than contrasts. The spa is rendered in 3D against your existing pool before construction so you see the match first.
Does The Spa Need Its Own Heater And Pump?
It depends on your existing equipment. If the pool’s heater and pump can carry the added spa load, the spa ties into them; if not, the spa gets its own. Cristallo assesses the existing equipment during the design visit and sizes the system accordingly.
Can You Add Jets, Lighting, And Automation To The Spa?
Yes. Spas are built with the jet layout, bench seating, heating, and lighting designed in from the start, and can carry the same FX Luminaire or Kichler lighting, saltwater, and automation systems as the pool. Designing them together keeps the controls consistent across the backyard.
How do I start a spa addition?
Call (561) 766-0353 or request a consultation online. The first visit assesses your pool, equipment, and lot to confirm a spa addition is a good fit, and the design is rendered in 3D before any work begins.
Designed and built by Cristallo Pools, Florida-licensed pool and spa contractors (CPC1458452 | CBC 1255924), PHTA International Award of Excellence 2025 and Pinnacle Award 2024 winners, building custom pools and spas across Palm Beach and Martin Counties since 2011.
Want a spa added to your pool, designed to match it? Call (561) 766-0353 or request a consultation. We render the spa in 3D against your existing pool before any work begins.