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A cap on a Mentone chimney has to survive salt air and sit on a rendered stack without cracking it. FreshDuct fits corrosion-resistant caps, cowls and bird guards to mission-style and period flues, fixed into the brick and sealed at the crown, and photographs them from the roof.
Rust streaks running down the render? The cap or its fixings are corroding above them.
A Mentone chimney cap does two jobs the same cap in an inland suburb never has to. It has to resist salt air that rusts standard steel and its fixings within a few winters, and on a mission-style stack it has to be fixed without cracking the render or opening a path for water behind it. Get either wrong and the first sign is a rust streak running down the render and a hollow patch where the streak ends.
So the fixings go through the render into the brick behind it, not into the render itself, and the cap is bedded and sealed to the crown so that the top of the stack sheds water outward rather than into the render. Material matters here as it does anywhere on the bay, so the cap and fasteners are chosen to resist salt. That is the same whether the flue is an open fire or a wood heater.
The bare-brick Edwardian and bungalow chimneys get the same corrosion-resistant caps with bird guards, and an open fire that smokes back when the wind comes off the water gets an anti-downdraught cowl after a draw test confirms that is the cause. If we are already on the roof for a sweep, the cap is measured and quoted then, and you get a photo of it fitted.
Corrosion-resistant caps, cowls and bird guards for Mentone’s rendered and brick chimneys, fixed into the brick, sealed at the crown and photographed.
A screw driven into render on a mission-style stack cracks it and gives salt water a way in. We fix caps through the render into the brick behind, and seal the fixing points, so the cap does not start the next render failure.
A corroding cap or bracket bleeds rust down a rendered Mentone chimney, and the streak marks where water is getting behind the render too. Replacing the cap with a corrosion-resistant one stops both the stain and the leak.
Before a cap goes on a rendered stack we tap the render around the crown. Fitting a new cap to a top that is already hollow just hides the problem; if it drums, we tell you before the cap goes on.
Real photos from Melbourne jobs — not stock, not staged.




We measure the flue and the crown on the roof, choose a cap or cowl in a material that will stand the salt, and fix it into brick with the seal run around the crown. Nothing is guessed from the ground.
The photo from the roof shows the cap seated and sealed and the render around the fixings intact, which on a mission-style Mentone chimney is the detail that decides whether the job was done well.
Documented end to end — every job, every suburb.
Flue size, terminal type and roof access checked.
The right cap or cowl for the appliance and the problem.
Firm price before any work.
Fixed and sealed from the roof, safely.
Draw checked with the cap on.
A photo of the finished cap from the roof.
Verified 5-star reviews from across FreshDuct’s duct, heating, cooling and chimney services.
“Allen provided exceptional service — friendly, professional and went above and beyond.”
Verified
“Highly impressed with the professionalism and efficiency. On time, and no mess left behind.”
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“Exceeded my expectations. Knowledgeable, meticulous and respectful of our home.”
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“So glad I chose FreshDuct. Knowledgeable team and the whole process was smooth from start to finish.”
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“Quick, efficient and professional — we could immediately feel the difference.”
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“The technician arrived on time and was incredibly thorough — the difference at home is obvious.”
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The same local team covers the suburbs around Mentone. Explore nearby areas and related FreshDuct chimney services.
Yes, if it is fixed properly. The fasteners go through the render into the brick, the holes are sealed, and the cap is bedded to the crown so water sheds outward. We tap the render around the top first, because a cap on a hollow crown is a repair waiting to happen.
Almost certainly the cap, its bracket or its fixings corroding in the salt air, and the streak also shows where water is running behind the render. We replace the cap with a corrosion-resistant one, seal the fixings, and check the render along the streak for hollow patches before we leave.
An open flue lets rain, leaves and birds straight in. A cap keeps the flue dry, keeps nests out and, on a wood heater, a spark arrestor stops embers leaving the flue.
Usually a downdraught — wind pushing back down the flue. An anti-downdraught cowl is the normal fix; we confirm the draw with a test before and after.
Yes. If we are on the roof for a sweep and the flue needs a cap, we can quote it on the spot and fit it the same visit where we have the right size.
Send your details and the office confirms a window for Mentone. No call-out fee, before and after photos, and honest advice on what your chimney needs and what it does not.