- Portable / ice bath: $200–$2,000 · No installation · Best for beginners and renters
- Freestanding + chiller: $3,000–$7,000 · 1–3 day install · Most popular choice
- Built-in plunge pool: $7,000–$16,000 · 2–6 week install · Adds property value
- Premium indoor setup: $9,000–$20,000+ · Full waterproofing and drainage required
- Sauna + plunge combo: $13,000–$27,000+ · Best value when building together
Type 1: Portable / Ice Bath Tub
The entry point — an inflatable or rigid tub you fill manually with cold water and ice. No chiller, no installation, no plumber or electrician required. The "try before you commit" option.
- Lowest upfront cost ($200–$1,500)
- Zero installation — works immediately
- Portable — renters and movers benefit
- No electrical or plumbing required
- Ice needed every session ($10–$30/use)
- Temperature inconsistent as ice melts
- Ice costs add up ($1,000–$3,000/year for regular users)
- Not practical for daily long-term use
Best for: Renters, first-time cold plungers testing the habit, very tight budgets. Most serious daily users upgrade to a chiller unit within 12 months.
Type 2: Freestanding Unit with Chiller
The most popular choice for Australian homeowners. A purpose-built cold plunge tub paired with a dedicated chiller unit that maintains your target temperature automatically. Available in acrylic, fibreglass, timber, and stainless steel.
- Consistent temperature 24/7 — always ready
- No ice management required
- Indoor or outdoor capable
- 1–3 day installation
- Can be moved if you relocate
- Requires dedicated electrical circuit
- Needs a drain solution (where 500–1,000L goes)
- Chiller runs continuously — electricity cost $30–$80/month
- Does not add property value
Installed cost: $3,000–$7,000 · Best for: Most Australian homeowners wanting consistent daily cold therapy without a permanent build.
Type 3: Built-In Plunge Pool
A permanently installed cold plunge — concrete, fibreglass, or tiled construction built into your outdoor area. Custom dimensions, integrated filtration, and the finish of a proper property feature.
- Premium finish — custom size and materials
- Adds genuine property value
- Fully integrated plumbing and filtration
- Multiple user capacity possible
- Highest cost — $7,000–$16,000
- 2–6 week installation timeline
- Multiple trades required
- Council permit likely needed
- Cannot be removed if you move
Installed cost: $7,000–$16,000 · Best for: Homeowners staying long-term, renovation projects, premium outdoor wellness builds.
Type 4: Premium Indoor Setup
A cold plunge designed for indoor installation — typically in a dedicated wellness room, bathroom extension, or converted garage. Requires full waterproofing, drainage to sewer, ventilation, and appropriate flooring.
Additional requirements vs outdoor: Waterproof floor membrane ($500–$1,500), floor drain to sewer ($500–$1,500), mechanical ventilation ($500–$1,000), moisture-resistant walls and ceiling. Total indoor premium: $2,000–$6,000 above equivalent outdoor setup.
Best for: Melbourne, Hobart, and southern state homeowners wanting year-round weather-independent access. Often combined with an indoor sauna for a complete wellness room.
The freestanding unit with chiller is by far the most popular choice for first-time buyers — it hits the sweet spot of convenience, cost, and performance. Most serious users who start portable upgrade to a freestanding chiller unit within 12 months. Built-in pools are most popular in the renovation and premium outdoor wellness market, typically as part of a larger outdoor project.
