Roof Leak Detection & Repair
Ceiling stains, drips in a storm, mould in the corner: we trace roof leaks to their true source on tiled and Colorbond® roofs, and fix them for good.
How do you find where a roof is leaking?
By working backwards from the evidence: water travels along tiles, sarking and timbers before it shows on a ceiling, so the stain is rarely under the entry point. We inspect the roof surface, flashing, valleys and penetrations, plus the gutters and downpipes that cause many 'roof' leaks, and identify the true source before quoting the repair.
Leak Detection
Finding the real leak: not just the stain
Ready Plumbing specialises in the fast and accurate detection, location and repair of roof leaks across the Northern Beaches and North Shore, covering tiled roofs and Colorbond® metal roofs alike. Roof leaks are deceptive: water shows itself on the ceiling far from where it enters, and some leaks only appear when wind drives rain into a vulnerable spot from one particular direction. Our skilled professionals use proven techniques to pinpoint the true source quickly and provide long-lasting repairs, not stain-chasing patches.
The Usual Suspects
The usual suspects
When we trace a roof leak, it's almost always one of these.
- Cracked or broken roof tiles: From age, foot traffic or falling branches.
- Rusted or deteriorating metal roofing sheets: Especially in coastal salt air.
- Damaged or poorly installed flashing: The metalwork around chimneys, walls, valleys and pipes is the single most common leak point.
- Ageing roofing materials and general wear: Bedding and pointing on ridge capping, perished seals on penetrations.
- Incorrect or missing installation components: Shortcuts from previous work that fail in the first serious storm.
- Blocked downpipes and leaf debris in gutters: Water backs up over the gutter edge into the eaves, presenting exactly like a roof leak.
That last one matters: a surprising share of “roof leaks” are actually gutter and downpipe problems, and fixing them costs far less than roof work. We check the drainage first, because the right diagnosis is the cheapest one.
What Happens On The Day
Our repair process
Inspect
Roof surface, flashings, valleys, penetrations, plus gutters and downpipes; we identify the entry point and the conditions that trigger it.
Show you
You see what we found and why it leaks, before any work is quoted.
Repair properly
Replace the broken tiles, refit or renew the flashing, fix the rusted section, restore the drainage. No silicone-over-the-symptom patches.
Guarantee it
Our workmanship carries a lifetime labour guarantee.
Leaking Right Now?
Genuine 24/7 emergency roof leak repairs
In an active storm we can make the roof safe with temporary weatherproofing and return for the permanent repair. Call our 24/7 line.
And if the inspection shows your roof is fine but your gutters aren’t, you’ll get that honest answer and a smaller bill: see gutter repairs.
Last reviewed: 8 July 2026 by the Ready Plumbing team.
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FAQ
Roof Leak Repairs: your questions answered
Plumbing problems can be extremely frustrating. Our licensed Sydney plumbers are here to provide fast, reliable answers and solutions.
My ceiling has a water stain but the roof looks fine, why?
Because water enters at one point and travels, along the top of sarking, down rafters, across battens, before dropping onto the ceiling. The entry point can be metres from the stain. That travel is exactly why DIY patching over the stain's location so often fails.
Why does my roof only leak when it's windy?
Wind-driven rain is forced sideways and upwards into areas vertical rain never touches, under flashings, up tile laps, through vents. Leaks that only appear in certain storms are usually wind-driven, and we inspect for those specific vulnerable points.
What are the most common causes of roof leaks?
Ageing roofing materials, cracked or broken tiles, rusted metal sheets, damaged or poorly installed flashing, general wear and tear, missing installation components, and blocked gutters or downpipes backing water up under the roof edge.
Can you repair the leak or will I need a new roof?
The overwhelming majority of leaks are repairs: replacing tiles, resealing or refitting flashing, fixing a rusted section, clearing the drainage. We'll tell you honestly if a roof is genuinely at end-of-life, but that's the exception, not the default.
Is a leaking roof an emergency?
Active dripping through a ceiling in rain is, water in the roof cavity finds wiring, insulation and plasterboard fast. We offer 24/7 emergency response, including temporary weatherproofing when a storm won't let up long enough for the permanent fix.
Get In Touch
Contact Your Local Plumber in Sydney
Ready Plumbing is a Sydney-based and fully-licensed plumbing business with more than 20 years of experience, offering a range of residential and commercial plumbing solutions and emergency plumbing 24/7. Get in touch and we'll respond promptly.
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