- Freestanding on existing slab: 1–2 days
- Freestanding with new electrical + drainage: 2–4 days
- Built-in plunge pool: 2–6 weeks including concrete cure
- Most overlooked step: Site assessment — identifies all the cost surprises before you commit
- Never DIY: Electrical connections must be done by a licensed electrician
Phase 1: Site Assessment
The single most valuable step in any cold plunge project. An experienced installer assessing your space before quoting identifies every potential complication — and their cost — before you commit. Skip this step and you're pricing based on the ideal scenario, not your actual property.
Electrical capacity
Where is the nearest switchboard? Is there existing outdoor power? Does the switchboard have capacity for a new dedicated circuit? Is the switchboard modern (circuit breakers) or old (ceramic fuses)? This check can reveal a $1,500–$3,000 switchboard upgrade requirement that completely changes the project budget.
Drainage situation
Where will the water go when you drain 500–2,000 litres? Is there an existing drain? What's the gradient — will water flow naturally or need pumping? Does the drain connect to sewer or stormwater? Chemical-treated water requirements vary.
Ground and structural conditions
Is the proposed surface level and solid? Can it support 500–2,000kg of filled tub? Outdoor on a concrete slab: ideal. On pavers: check the base. On timber deck: structural assessment required. Sloped ground: levelling or platform required.
Access for delivery
How does the tub arrive? Most freestanding units arrive on a pallet by truck. Gate width, path access, and overhead clearances all affect delivery. Identify any access limitations before ordering.
Phase 2: Electrical
A licensed electrician runs a dedicated circuit from your switchboard to the installation location. This includes the correct circuit breaker, RCD protection, and a weatherproof outdoor outlet (or indoor wet-area outlet). A Certificate of Compliance is issued on completion.
Typical cost: $500–$2,500 depending on distance, access, and whether a switchboard upgrade is needed. Budget this as a fixed cost before comparing chiller unit prices.
Phase 3: Plumbing & Drainage
Fill connection (mains hose or dedicated tap) and drain connection (to existing drain, new drain line, or garden/lawn area). For built-in pools, full plumbing integration including filtration circulation lines.
Typical cost: $500–$2,000 for a standard outdoor freestanding setup. More for indoor or built-in configurations.
Phase 4: Unit Placement
The tub is positioned on the prepared surface, levelled, and stabilised. The chiller is positioned with adequate clearance for airflow (typically 300mm minimum around all sides). All connections are made — chiller to tub, chiller to power, fill and drain lines connected.
Phase 5: Commissioning
- First fill: Tub filled to correct level, all connections pressure-tested for leaks
- Chiller test: System powered up, temperature verified dropping toward target
- Filtration test: Pump and filtration system checked for correct flow rate
- Controls walkthrough: Full demonstration of temperature controls, timer settings, and filter maintenance
- Certificate of Compliance: Electrician provides CoC for all electrical work
- Maintenance schedule: Written guidance on water chemistry, filter cleaning, and chiller servicing
Cold plunge unit (brand, model, specifications), chiller unit (brand, model, cooling capacity in BTU or kW, minimum achievable temperature), filtration system, electrical work (by licensed electrician, Certificate of Compliance), plumbing connections (fill and drain), site preparation (base, any levelling, drainage work), delivery and installation labour, commissioning and first fill, warranty on unit and workmanship. Any quote missing these elements is incomplete — don't compare it against a complete quote.
