Eight things that go wrong with an outdoor kitchen - and what each one means.
Outdoor kitchens do not fail suddenly. They tell you for two or three years first, and almost nobody is listening. A door that sticks. A streak under a hinge. A drip in the same spot every autumn. Here is how to read the signs on a Cranbourne build, and which ones mean pick up the phone today.
The three that are not a wait-and-see.
1. You can smell gas.
Not later, not next weekend. Turn off the isolation cock at the BBQ or at the meter, do not light anything, and get a licensed gasfitter out. If the smell is strong or persistent, leave the area and ring the gas emergency line first. Fixed gas work in Victoria is licensed work under AS 5601 and it comes with a compliance certificate lodged with Energy Safe Victoria - a handyman touching it is illegal, not just unwise. The most common causes we find are a fitting that was never pressure-tested properly, or a line that was tapped into without a certificate by somebody adding an appliance later.
2. Something electrical is tripping, or an outlet looks weathered.
Outdoor circuits need RCD protection and IP-rated fittings under AS/NZS 3000. An RCD that trips when the bar fridge kicks in is doing its job and telling you there is moisture where it should not be. A weathered, cracked or discoloured outdoor GPO is a fire and shock risk in a wet Cranbourne winter. Licensed electrician, certificate of electrical safety, no exceptions.
3. The roof moves, creaks or rattles in a northerly.
Cranbourne sits in wind Region A5 under AS/NZS 1170.2, and the northerly gusts ahead of a summer change are exactly what the standard exists to handle. A roof that audibly works in the wind is telling you the fixings, the tie-downs or the footings are not doing what the engineering said they would. Roof uplift is the number one alfresco insurance claim in the City of Casey, and it does not announce itself politely on the day it happens. Get it looked at.
The five that give you years of warning.
4. A hairline crack in the benchtop.
The classic Cranbourne one, and it almost never means the concrete was bad. It means the structure below it moved. Class M reactive clay under AS 2870 swells through a wet winter and shrinks through a dry February, shifting 20 to 40mm vertically. An island founded on a thickened-edge slab rides that movement and the benchtop, which is rigid, cracks - usually at the sink cutout where it is weakest. Filling the crack is cosmetic theatre. The honest fix is demolishing the island and putting in the screw piles or 900mm bored piers that should have gone in on day one. This is why we will not build on an unengineered slab, and it is covered in more depth on our lifespan guide.
5. Cabinet doors sticking.
Doors stick because the carcass swelled, and the carcass swelled because water got in. Usually that is driven winter rain under a roof with a stingy overhang, or splashback water finding an unsealed edge around the sink. Caught in the first season it is a sealing and drainage job. Left for three years, the carcass delaminates from the inside where you cannot see it, and by the time a door drops off its hinge the entire run needs replacing at $6,000 to $9,000.
6. Rust streaks under hinges and fasteners.
Somebody specified 430 grade stainless instead of 304. It is magnetic, it is cheaper, and it has no molybdenum, so it tea-stains. Cranbourne is about 15km inland of Western Port - low to medium corrosivity under AS 4312, not a marine environment, but plenty enough to streak 430 within a few years on a southern elevation through Botanic Ridge or Devon Meadows. If the streaks are coming from the fasteners rather than the panels, you are lucky: fasteners swap out cheaply. If the panels themselves are pitting, the cabinetry is on borrowed time.
7. A drip in the same spot every time it rains.
Three suspects. A flashing where the alfresco roof meets the house that was never lapped properly. A fixing that has backed out or was overdriven, crushing the washer. Or a gutter undersized for the roof area, which in a Cranbourne downpour off 40 square metres of Colorbond is a lot of water going somewhere it should not. All three are a few hundred dollars now. All three are framing damage and, on reactive clay beside your house footings, a considerably bigger problem in five years.
8. Benchtop staining that will not clean off.
The sealer is gone. Polished concrete outdoors needs a penetrating, UV-rated sealer and a re-coat roughly every two years - it is not the same product as an indoor benchtop and it does not last as long here. Once oil and wine have soaked into unsealed concrete the stain is permanent, and re-sealing over it just locks it in. This is the cheapest problem on this page to prevent and one of the most annoying to live with.
What early beats late looks like in dollars.
Same problem, two owners. Cranbourne West retrofit, 2019 build, driven rain getting behind a short roof overhang into the back of a 3.6 metre cabinet run.
- Owner A notices doors sticking in the second winter and rings someone. Overhang extension and flashing, cabinet backs sealed and drained, two swollen door fronts replaced: $1,850.
- Owner B notices the same sticking, decides it is just humidity, and gets on with life. Year five: carcasses delaminated, hinges rusted through, one door on the ground, benchtop support compromised. Full cabinetry run rebuild in marine ply with 304 stainless, benchtop lifted and re-set, overhang extended anyway: $11,400.
Six times the cost, for the crime of not ringing anyone. Almost every expensive outdoor kitchen repair we do started as a $2,000 problem that was ignored for three years. The 2026 rate card for rebuild work is on our pricing guide, and our outdoor kitchens page covers how the run should have been built in the first place.
Warning sign questions.
What does a hairline crack in my outdoor benchtop actually mean?
In Cranbourne it almost always means the structure under it is moving. Most of the City of Casey sits on Class M reactive clay under AS 2870, which swells through a wet winter and shrinks through a dry February, moving 20 to 40mm vertically. A rigid benchtop on an island founded on a thickened-edge slab telegraphs that movement, and the crack usually appears near the sink cutout where the slab is weakest. Filling the crack does nothing. The fix is the footing, and that means demolishing the island.
I can smell gas near my outdoor BBQ - what do I do?
Stop using it, turn off the isolation cock at the BBQ or the meter, do not light anything, and get a licensed gasfitter out. Do not touch it yourself and do not let a handyman touch it - fixed gas work in Victoria requires a licensed gasfitter and an AS 5601 compliance certificate lodged with Energy Safe Victoria. A gas smell around a fixed appliance is not a wait-and-see item. If it is strong or persistent, leave the area and ring the gas emergency line before you ring anyone else.
Why is my alfresco roof dripping in the same spot every time it rains?
Three usual suspects, in order of likelihood. A flashing where the alfresco roof meets the house that was never properly lapped or sealed. A fixing that has backed out or was overdriven, which crushes the washer and lets water past. Or a gutter that is undersized or falling the wrong way for the roof area it serves. All three are cheap to fix now and expensive to ignore, because the water is landing on your framing and, on reactive clay, sometimes right beside your house footings.
What are rust streaks on my outdoor kitchen telling me?
Usually that somebody specified 430 grade stainless instead of 304. Cranbourne is roughly 15km inland of Western Port, which is a low to medium corrosivity category under AS 4312 - not marine, but enough to tea-stain 430 within a few years, particularly on exposed southern elevations. If the streaks are running from the hinges and fasteners rather than the panels, it is the fasteners. That is the cheaper version of this problem, because fasteners can be swapped without touching the cabinetry.
My cabinet doors have started sticking - is that serious?
It is an early warning, and a useful one. Doors stick because the carcass has taken up moisture and swollen, which means water is getting into the cabinet run - usually driven rain under a roof with too little overhang, or splashback water finding an unsealed edge. Caught early it is a sealing and drainage fix. Left alone, the carcass delaminates from the inside where you cannot see it, and by the time a door falls off its hinge the whole run is finished.
Where we build.
Seeing one of these? Get it looked at while it is still cheap.
We will tell you honestly whether it is a $2,000 fix or a footing problem. If it is nothing, we will say it is nothing and charge you nothing for the visit.