Servicing Brisbane, South East Queensland & Sunshine Coast
Servicing Brisbane, South East Queensland & Sunshine Coast

A leaking roof rarely gets better on its own. The longer water is finding a way in, the more damage it's doing to your ceiling, insulation, timber framing, and anything underneath. The problem is that where water enters the roof and where it shows up inside are often two completely different places.
At Custom Profile Roofing, we specialise in metal and Colorbond roof leak detection and repair across Brisbane. We don't guess, we trace the leak to its actual source, repair it properly, and help you understand what caused it so it doesn't come back.
What we bring to every leak job:
QBCC-licensed and fully insured
Photo-based inspection and quoting (you see exactly what we find)
Written scope before any work starts (no surprises)
Workmanship guarantee on all repairs
Honest advice: if the roof is end-of-life, we'll tell you upfront
If water is actively coming in, here's what to do before the repair team arrives:
Place buckets or containers under active drips to limit floor and furniture damage.
Move valuables, furniture, and electronics away from the affected area.
If you have a sagging or bubbling ceiling, do not stand underneath it as water weight can cause plasterboard to collapse without warning.
Do not attempt to access the roof yourself, particularly in wet or windy conditions.
If water is near a light fitting, ceiling fan, or power point, switch off the power to that circuit at the switchboard and call a licensed electrician before anything else. Water and live electricity are a serious hazard.
Once it's safe, take photos of where water is entering and any ceiling or wall damage. These help us triage the job before we arrive and give you a faster quote.
Get a clear diagnosis and written quote. Call or book an inspection online.
One of the most common misconceptions about roof leaks is that the source is directly above the wet patch on the ceiling. In most cases, it isn't.
Water enters through a failure point, such as a perished screw washer, a lifted flashing, a gap in a lap, and then travels along sarking, battens, insulation, or the underside of sheeting before it drips down somewhere else entirely. Wind-driven rain makes this even less predictable: water can be pushed uphill under a lap or through a gap that would be perfectly weatherproof in a standard downpour.
This is why a proper inspection matters more than a visual scan from the ground. When we inspect for a leak source, we're checking:
Screws and fasteners: rubber washers perish under Queensland UV and are one of the most common causes of metal roof leaks.
Flashings at wall junctions, valleys, and penetrations, including around chimneys, skylights, solar panel mounts, and roof vents.
Ridge and barge capping where capping sealant has cracked or lifted, or fixings have worked loose over time.
Valleys and box gutters: high water flow points that are prone to overflow, rust, and debris accumulation.
Sheet laps and seams, particularly on low-pitched roofs where water sits longer.
Rust patches and corrosion points, which can develop into through-holes without being immediately obvious from below.
Penetrations: solar panel rails, antenna mounts, vents, and skylight frames are all common leak points if the original installation wasn't sealed properly or has since deteriorated.
Our inspections are photo-documented. You'll see exactly what we find, where it is, and what we recommend to fix it.
What we fix:
Get a clear diagnosis and written quote. Call or book an inspection online.
A roof leak doesn't always announce itself with water dripping through the ceiling. These are the early warning signs worth acting on:
Yellow or brown ceiling stains: often the first sign water has been getting in for some time.
Bubbling or blistering paint on ceilings or walls: indicates moisture trapped behind the surface.
A musty or mouldy smell, particularly in rooms below the roof cavity: wet insulation is a common culprit.
Damp or sagging insulation: visible if you have roof access; also increases the risk of ceiling failure.
Rust blooms on ceiling plasterboard: caused by water tracking through roofing screws or fixings and dripping onto the ceiling below.
Visible rust staining on exterior walls: can indicate overflowing gutters or failing flashings at wall junctions.
Loose or lifted ridge capping or flashings: visible from the ground or neighbouring buildings.
Leaks that only appear during wind-driven rain: a strong indicator of flashing or lap failure rather than a hole in the sheet.
If you're seeing any of these signs, it's worth getting the roof inspected before the next storm season. Catching a minor flashing failure or perished screw section early is significantly cheaper than dealing with damaged insulation, ceiling replacement, and mould remediation later.
Get a clear diagnosis and written quote. Call or book an inspection online.

When a storm has caused or worsened a leak, the first priority is making the building watertight as quickly as safely possible. This is what we call a make-safe repair, temporary weatherproofing to stop water entry until a full repair can be properly scoped and scheduled.
A make-safe might involve temporary sheeting, covering exposed sections with appropriate weatherproof materials, or re-securing lifted capping to prevent further wind damage. It is not a permanent fix, and we'll always be clear about that distinction.
For storm-related leaks, photos of the damage (taken safely from the ground or inside) help us triage the job quickly and give you a faster response. Safe roof access is a requirement before any work begins, we won't rush onto a wet or unstable roof.
We respond to storm damage repair requests across Brisbane and the Sunshine Coast.
We'll advise on what needs to happen immediately versus what can be scheduled.
All storm repairs are photo-documented for your records (useful for insurance purposes).
Getting this decision right saves you money. The wrong call in either direction: repairing a roof that should be replaced, or replacing a roof that just needed targeted repairs, is an expensive mistake. Here's a quick guide:
Roof structurally sound
1–3 leak sources
Best for: screws, flashings, single sheet damage
Sheets sound but weathered
Sealing + coating system
Best for: ageing roof with widespread fatigue but no structural failure
Repeated leaks, multiple failure points
End-of-life sheeting
Best for: roofs past serviceable life
The honest answer is: it depends on the actual condition of your roof. An inspection gives you the information to make a confident decision, rather than guessing based on the age of the roof alone.
Custom Profile Roofing carries out metal roof leak repairs across South East Queensland. Our core service corridor runs from Brisbane north through North Lakes and the North Brisbane corridor up to the full Sunshine Coast region.
Brisbane
North Lakes
Ashgrove
Chermside
Petrie
Caboolture
Morayfield
Brisbane
North Lakes
Ashgrove
Chermside
Petrie
Caboolture
Morayfield
We start by inspecting the most common failure points for the roof type: screws and washers, flashings, laps, valleys, and penetrations, and work systematically from there. On complex leaks, we may need to trace the water path from where it appears inside back up through the roof structure. Every inspection is photo-documented so you can see exactly what we find and where.
Yes. We work with all common metal roofing systems used in Brisbane: Colorbond, Zincalume, corrugated iron, Klip-Lok, Trimdek, and custom architectural profiles. The repair approach depends on the profile and the failure point, but we carry out repairs on all of them.
It depends on where and how fast water is entering. Water near electrical fittings is always urgent, switch off power to the affected circuit and call a licensed electrician. A steady drip into a bucket is less urgent than a sagging, water-heavy ceiling. If you're unsure, call us and we'll help you assess it. Don't attempt to access the roof yourself in wet or windy conditions.
Because water doesn't usually travel straight down. It enters through a failure point and then runs along sarking, roof battens, insulation, or the underside of sheeting before dripping down somewhere else. Wind-driven rain adds another variable — it can push water uphill under laps or through gaps that are otherwise weatherproof. This is why a proper inspection almost always finds the source somewhere different from where the ceiling is wet.
Yes, and this is one of the most common metal roof leak causes we see in Brisbane. Each exposed-fix screw has a rubber or neoprene washer that creates a watertight seal. Queensland's UV intensity degrades these washers over time (typically 10–15 years) and once they harden or crack, every screw becomes a potential entry point. Re-screwing with new fasteners and washers is a cost-effective fix and often the first thing we check.
Yes. Solar panel rail mounts and skylight frames are among the most common penetration leak points we deal with. The original installation may not have used a proper custom flashing, or the sealant has since deteriorated. We re-flash or reseal these penetrations using compatible materials to the existing roof system.
The key question is whether the failure is isolated or widespread. A single failed flashing or a section of perished screws is a repair. Widespread corrosion across multiple bays, repeated leaks in different locations, or sheeting that's past its structural life points toward re-roofing. An inspection gives you an honest answer, we'll tell you what we find and what we'd recommend, with no obligation.
Small, isolated repairs (a section of re-screwing, a flashing reseal, a single sheet replacement) can often be completed in a few hours on the same day as the inspection. More complex repairs involving fabricated flashings, valley replacement, or partial resheet work may take a full day or require a follow-up visit for materials. We'll always give you a realistic timeline in the quote.
If you've got a leak, or you suspect one, the right move is to get the roof properly inspected before the next rain event. We'll trace the leak to its source, give you a clear written scope, and carry out repairs that actually last.

Whether you've got a leak that needs sorting this week or you're planning a full re-roof, we're ready to help. Get in touch with Custom Profile Roofing for a fast, written quote from a team that knows metal roofing inside out.
QBCC License: 1162830
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