View Pool & Raised Tile Spa with Composite Deck by Moda Outdoor Living in Rolling Hills, CA — luxury outdoor living design and build
Licensed design-build contractor · CA Lic #1102152

Attached, raised and standalone spas

Pool & Spa Construction

A spa is the part of the backyard that gets used in January. We build them attached to new pools, added to existing pools, or on their own.

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Moda builds gunite spas attached to new pools, raised spas with tiled spillways, and spas added to existing pools during a remodel. Spa construction shares the pool's structure, plumbing and equipment where possible, which is why adding a spa during a pool build or remodel costs substantially less than building one later.

Types

Attached · Raised · Standalone

Shell

Gunite, same as the pool

Heat

Independent spa heat with automation

Best time to add

During a new build or remodel

Attached, raised or standalone?

Attached spas sit flush with the pool and share water; raised spas sit above the pool and spill into it; standalone spas are separate structures with their own equipment.

  • Attached / flush — cleanest look, simplest hydraulics, best for modern geometric pools
  • Raised with spillway — the most requested; creates sound, a visual focal point and a seat wall edge
  • Standalone gunite spa — for yards with no pool, or where the spa needs to sit near the house
  • Cold plunge — increasingly requested alongside the spa on the same equipment pad

Adding a spa to an existing pool

Yes, a spa can be added to an existing pool — it is engineered into the existing shell and plumbed into the existing equipment pad, and it is best done as part of a remodel.

The two constraints are structural (tying new gunite to a 25-year-old shell correctly) and hydraulic (whether the existing pad can carry spa jets and independent heat, or needs upgrading). We check both before quoting.

How is a spa heated and controlled?

A high-efficiency gas heater with automation lets the spa reach temperature in roughly 20–40 minutes and be triggered from your phone before you get home.

On shared pool-and-spa equipment, valve actuators isolate the spa so you are heating a few hundred gallons instead of the whole pool. That single detail is the difference between a spa you use weekly and a spa you use twice a year.

Completed Moda projects

Real photography from projects we designed and built. No stock imagery.

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Frequently asked questions

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