Finding the true source of a roof leak demands experience and systematic investigation. The entry point of water is often far from where stains appear on your ceiling — sometimes metres away. Palmers Roofing traces every leak back to its origin using proven detection methods, so repairs target the actual problem and stop the water for good.
Professional leak detection in the Wollongong, Shellharbour, and Kiama regions typically costs between $150 and $350 depending on the complexity of the investigation and size of the roof. For straightforward leaks where the source is identified quickly through visual inspection, the cost sits at the lower end. Complex multi-point investigations requiring water testing and moisture scanning are at the higher end. Many roofers, including Palmers, credit the detection fee toward the cost of repairs if you proceed with the fix.
Yes. The majority of our leak investigations are completed without removing any roofing materials. We use a combination of internal roof cavity inspection, controlled water testing from outside, and non-destructive moisture meters and thermal cameras to locate leak sources. In rare cases involving concealed flashings or layered roofing systems, limited tile lifting may be required to confirm the exact entry point, but we always exhaust non-invasive methods first.
Water rarely drips straight down from a roof defect to your ceiling. Instead, it follows the path of least resistance — running along sarking membranes, travelling down rafters and battens, and pooling at low points before eventually soaking through plasterboard. In many Illawarra homes, the ceiling stain can be two or three metres away from the actual roof penetration. This is precisely why professional detection is essential — patching the ceiling stain area without finding the true source guarantees the problem will return.
A standard leak detection inspection takes between 1 and 2.5 hours depending on the roof size, accessibility, and complexity of the leak. Simple single-source leaks identified through visual cavity inspection can be confirmed within 45 minutes to an hour. Multi-point investigations requiring systematic water testing across several roof sections take longer. We always allow sufficient time to thoroughly investigate rather than rush to a premature conclusion.
Absolutely. Leaks that only appear during heavy, wind-driven rain are among the most common in the Illawarra due to our coastal storm patterns. These intermittent leaks are often caused by failed flashings, degraded pointing, or subtle tile displacement that only allows water entry when rain is driven at a specific angle or volume. We replicate heavy rain conditions using controlled hose testing at various pressures and angles to trigger the leak under observation, allowing us to identify the source even on a dry day.
In many cases, we can carry out the repair on the same visit as the detection — particularly for straightforward fixes like replacing cracked tiles, re-sealing flashings, or repointing ridge caps. For more extensive repairs requiring specific materials or additional labour, we provide a detailed written quote on the day and schedule the repair at the earliest available time. The detection fee is typically credited toward the repair cost when you proceed with Palmers Roofing.