Before winter, all Mildura wood heater owners need to read this...
The free 4-minute homeowner guide.
By the Fletcher's Flues team · 4 min read
After two decades of climbing Mildura roofs, Wayne Fletcher will tell you the same thing every time: the flues that scare him aren't the ones people are worried about. They're the ones the owner swears are fine.
It's a pattern he's seen play out every autumn for years. A family lights their first fire of the season the way they have every winter. The heater catches. The house warms up. Everything feels normal. And nine times out of ten, it is.
It's the tenth time that's the problem. Because something quietly changes inside a flue across the eight or nine months a wood heater sits unused, and almost no one looks for it until it's already a problem.
"The flue doesn't care that it worked perfectly last July. What matters is what's been quietly building up inside it since."
What's actually changing in there
There's something that builds up on the inside walls of every working flue. It's flammable. Most homeowners have never seen it, because by the time the heater is cold enough to inspect, the season is usually well underway.
It's called creosote, a dark, tar-like residue that condenses on the flue walls every time the fire runs cool or the wood is a little damp. Over a season, the layer thickens. And it's one of the leading causes of house fires in Australia each winter, almost always in flues the owners genuinely believed were fine.

That's the reason Australian standards recommend a professional clean at least once a year for regularly used fireplaces, it's the baseline maintenance the appliance was designed around.
But creosote isn't actually the thing Wayne worries about most. It's the obvious one. It's the one people have at least heard of. The thing he sees more often, and that almost no one checks for, is quieter.
A flue that's partially blocked, by creosote, by debris, or by a bird's nest that's gone in over summer, can push carbon monoxide back into the house instead of venting it up and out. Carbon monoxide is invisible and odourless. By the time anyone notices it, they usually already have a headache.
And there's the paperwork side of it, which is becoming harder to ignore. Home insurance in Victoria increasingly requires documented chimney maintenance, and some policies now exclude chimney fire claims without proof of an annual clean. It's worth checking the fine print before the season starts, not after.
One last note: the type of wood matters. Unseasoned or wet wood, the stuff that hisses a bit when it catches, produces noticeably more creosote than properly dried hardwood. If that's what's been in the shed all summer, the flue may need attention sooner rather than later.
Signs your flue is asking for attention
None of these are emergencies on their own. But if more than one sounds familiar, it's worth booking a look before May.
- It's been more than 12 months since your last clean.
- You notice smoke coming back into the room when you light the fire.
- The fire isn't drawing as well as it used to, it's slower to catch, slower to roar.
- There's a strong smoky smell in the room even when the fire isn't lit.
- You've moved in recently and don't know the maintenance history of the heater.
The local people most Mildura families call

This is exactly why Mildura families have been calling Fletcher's Flues before the cold sets in each year. Wayne and Cat Fletcher run the business locally, they're the ones who turn up, do the work, and walk you through what they found.

They use proper professional sweeping equipment rather than a DIY brush-and-hope approach, lay drop sheets through the room so nothing ends up on the carpet, and include a before-and-after inspection of the flue so you can actually see what came out. No mess left behind, that part's a guarantee.
It's the kind of straightforward, local trade work that's becoming harder to find. Which is probably why the diary tends to fill up the moment the weather turns.
What locals are saying
"Booked them in late April and so glad we did. Wayne showed us photos of what came out of the flue, honestly a bit confronting. House has run beautifully all winter since."
"We've used Fletcher's for three years running now. They're on time, no mess at all, and Cat's lovely on the phone. Feels like dealing with neighbours, not a faceless company."
"Moved into a place with an old combustion heater and had no idea what shape it was in. Wayne walked me through everything. Honest blokes, would recommend to anyone in town."
Booking before winter
There's no rush about it, but spots do fill from early May, and once the first cold front hits, the diary tightens up quickly. If a clean has been on the to-do list, now's a sensible week to sort it.
Get in touch
Book your chimney clean before winter. Spots fill fast from May.
Wayne and Cat answer the phone themselves — give them a call, send a text, or message the Facebook page.