Perth stretches a long way for a city of its size. It is a thin ribbon along the coast, and a band based up north playing a party down south can be looking at well over an hour each way without ever leaving the metro area.
So the first useful thing you can put in an enquiry is the suburb. A quote for Scarborough and a quote for Mandurah are not the same number, and any band worth booking will want to know which one you mean before they give you one.
Top picks are the acts in this category in Perth, with the most visible client reviews first, then rating; premium listings break remaining ties.
Distance is baked into every Perth quote, so a party in Joondalup and one in Rockingham get different numbers from the same band. Lineup and length do the rest. The from-prices on this page are today's Perth party band figures, and it's worth asking whether the band's smaller version suits a backyard better than the full one.
Around forty is where a live band starts to make sense over a DJ, and by sixty it's a clear win. Below that, the band can feel bigger than the party, especially in a Perth backyard where everyone is spread across the lawn. A duo or a trio is the answer for a smaller group.
The Hills are an ordinary booking for most Perth bands. Margaret River and the South West are a different question: it's three hours each way, so you're paying for a day and often a night's accommodation. Some bands love a down-south weekend and price it kindly, others don't do it at all, so ask early.
Later than you'd think. Sunset in a Perth December is after seven and the heat hangs on until then, so most bands prefer a first set around eight once the breeze has done its work. An afternoon start means playing in full sun, which is unpleasant for them and thins out your dance floor.
Afternoon heat is hard on both the band and the dance floor. Most experienced acts will steer you towards a later start, and the sea breeze usually arrives to make it pleasant.
The afternoon breeze off the water is strong enough to take a speaker off its stand. If the party is anywhere near the coast, ask how they secure the gear rather than finding out the hard way.
Flying an act in from the east coast is expensive enough that almost nobody does it, so what you see here is what is available. That is an argument for booking early rather than shopping around indefinitely.