Aircon installed by one licensed pair of hands — electrical and refrigerant.

It depends on the system and the run, which is why Thunderman quotes it free rather than posting a figure. The real drivers are the type (a single wall-mounted split, a multi-split serving several rooms, or a full ducted system), the length and path of the refrigerant pipe and drain, whether a new electrical circuit is needed at the board, and how accessible the roof space or wall is. Send the room details on 0434 254 474 for a free, no-obligation quote — the aircon cost-drivers guide walks through what moves the number.

Yes — and that's the point of using Thunderman rather than an aircon-only outfit. A split-system install is really three licensed jobs in one: the electrical supply and circuit (a Registered Electrical Contractor, REC 28523), the refrigerant handling (ARCtick certified), and the installation class itself (VBA-registered for refrigerated air-conditioning). Yiannis holds all three, so one accountable person does the whole install — no electrician blaming the aircon installer when something trips, and one Certificate of Electrical Safety lodged at the end.

It comes down to the room — floor area, ceiling height, which way it faces, how well it's insulated, and how many people use it. Undersize it and it runs flat-out and never quite cools; oversize it and it short-cycles and wastes power. Yiannis sizes it properly on site, and the aircon sizing guide on the Journal has a calculator you can use to get a ballpark kW range before he visits.

Both. A wall-mounted split or multi-split suits a room or two; ducted reverse-cycle suits whole-home heating and cooling from a single system. Yiannis installs and connects both, including the ducted reverse-cycle systems that do the heating as well — one system, one certified install.

There's no official ranking, so here's what's checkable instead: a Registered Electrical Contractor licence (REC 28523) you can look up on the Energy Safe Victoria register, ARCtick certification for the refrigerant work, 4.9 stars across 53 Google reviews, and one owner — Yiannis Knodarites — who quotes the job and then does it himself. Whether that suits your install is worth a free quote on 0434 254 474.

It's a compressor-protection habit: if the unit switches off, wait about three minutes before turning it back on. Restarting a compressor too quickly, before the refrigerant pressures have equalised, makes it work against a pressure imbalance and can shorten its life. Most modern systems have a built-in delay that enforces it, but it's worth knowing — especially after a power flicker or a safety-switch trip.