Evaporative cooling in Pakenham & Cardinia.

Pakenham summers are hot and dry with peak days near 40C — which is exactly the climate evaporative cooling is built for. A roof-mounted unit draws hot outside air through wet pads, cools it by evaporation, and pushes fresh filtered air through ceiling outlets in every room. It costs a fraction of refrigerated cooling to run, brings in fresh air rather than recirculating, and you simply leave a few windows cracked for it to work. The brands we fit most across Cardinia are Bonaire, Breezair and Brivis.

The honest limitation.

Evaporative cooling struggles on the handful of humid summer days Pakenham gets, because it relies on dry air to evaporate. It also only cools — there’s no winter heating and no dehumidification. Many Cardinia families run evaporative for everyday value and add a refrigerated split in the main living room for the humid days, or move to whole-home ducted refrigerated cooling if they want one system that copes with any day and heats in winter. We’ll tell you straight which path fits your home.

Install & replacement across the estates.

A lot of Lakeside and Cardinia Lakes homes were built with evaporative cooling, and those original units are now reaching end of life. Replacing a dead unit on sound existing ductwork is quick and affordable; a brand-new install (unit, ceiling drops, outlets, water and power) is a bigger job but still the cheapest whole-home cooling to buy and run. We assess roof access, existing drops and water supply at the free quote.

What we get right.

• Sizing & airflow: unit and outlet count matched to the home so every room actually cools.
• Water & bleed-off: correct water feed, distribution and bleed-off to stop salt build-up on the pads.
• Roof & weatherproofing: tidy, sealed roof penetration and secure mounting.
• Electrical: controller and power to AS/NZS 3000.
• Annual service: pad clean/replace, pump check, and end-of-season winterising.

2026 evaporative cooling pricing — Pakenham.

New roof-mounted install (3–4 bedroom home): $4,000–$6,500. Like-for-like replacement on existing ductwork: $3,200–$4,500. Worked example: a 4-bedroom Lakeside home replacing a dead evaporative unit with a new Bonaire on the existing drops is about $3,800 fitted.