Updated October 2026
Casuarina sits on the eastern side of the City of Kwinana, next to Wellard and Wandi, on larger blocks than the suburbs closer to the coast. The roofing work here is a mix, which is worth being honest about rather than pretending every roof in the suburb is the same.
A mixed suburb, so no blanket answer
Some roofs here want the full treatment and some want a flashing fixed. Rather than guess from a postcode, the test is what the roof itself is doing.
Signs you are looking at a restoration: cracked and crumbling ridge mortar, grey mortar chunks in the gutters after a front, caps that sit out of line, a surface that has gone porous and patchy, rust in the valleys.
Signs you are looking at a repair: a leak with a sound-looking roof, a cracked tile or two, a flashing that lets go in particular weather, gutters overflowing in ordinary rain.
Rebedding and repointing covers the first case, tile roof repairs the second.
Sheds, carports and the WA threshold
Bigger blocks mean more outbuildings, and there is a WA rule worth knowing before you sign anything. Building work that needs a building permit and is valued at $20,000 or more must be carried out by a registered building contractor, or by an approved owner-builder. For a Class 10a building, which is a non-habitable building including a private garage, carport or shed, that figure is $50,000 rather than $20,000. Work that needs no building permit can be done by anyone whatever it costs.
Thresholds and exemptions do change, so check the current position with Building and Energy and verify any registration number before you commit.
Also nearby
We also arrange work in Wellard and Wandi. Related services: metal roof restoration, gutter replacement, tile roof repairs.
Frequently asked questions
Will a roofer quote the house and the shed together?
Usually, and it makes sense while the crew and the access gear are on site. Ask for them as separate lines on the one quote so you can see what each costs.
Is shed roofing different work?
Sheet metal rather than tile, mostly, which means the issues are fasteners, laps, flashings and rust rather than mortar and valleys. See metal roof restoration.
Does a bigger block make the job easier or harder?
Usually easier. There is room for a truck and for scaffolding, and access is a real cost item on tight suburban blocks. That tends to show up in the quote in your favour.
How often should the gutters be cleared?
Before the first front each year. Almost all the year's rain arrives in a short winter window, and a gutter full of leaf litter is the most common cause of water going into the eaves rather than down the downpipe.