From leaking chimney flashings to corroded valley irons, Palmers Roofing provides specialist flashing repair and replacement services across Wollongong, Shellharbour, Kiama and the entire Illawarra region. Licensed, insured, and backed by over 15 years of local experience.
Flashing repair costs in the Wollongong, Shellharbour, and Kiama regions typically range from $200 for a single re-sealed penetration flashing through to $1,800 or more for full valley flashing replacement or extensive chimney flashing restoration. Lead flashing repairs generally cost between $350 and $1,200 depending on the area and complexity. We provide free, no-obligation quotes with itemised pricing for all flashing work so you know the exact cost before any repairs commence.
The most obvious sign of flashing failure is water staining on ceilings or walls near where your roof meets a wall, chimney, skylight, or valley. Other indicators include visible rust or corrosion on exposed metal flashings, lifted or separated flashing edges, crumbling mortar around chimney flashings, and damp patches in the roof cavity. During heavy rain, active drips near penetration points almost always indicate flashing failure. We recommend annual professional inspections for Illawarra properties to catch deterioration early.
Step flashing consists of individual L-shaped metal pieces woven between each course of roof tiles or overlapping metal sheets where a roof meets a vertical wall. Each piece overlaps the one below, creating a stair-step waterproof barrier that moves independently with thermal expansion. Apron flashing (also called continuous flashing) is a single piece of formed metal installed at the base of a vertical surface, such as the front of a chimney or the bottom of a wall-to-roof junction. Both types work together on most Illawarra roof installations.
Flashing lifespan varies significantly based on material and proximity to the coast. Lead flashings typically last 40–60 years in sheltered locations but may deteriorate within 20–30 years in salt-spray zones. Colorbond flashings have an expected lifespan of 25–40 years depending on the colour and coating type. Galvanised steel flashings are most vulnerable to coastal corrosion and may need replacement after 15–25 years in exposed Illawarra suburbs like Austinmer, Thirroul, and Scarborough. Regular maintenance and protective coatings can extend lifespan considerably.
Absolutely. Flashing repair is one of the most targeted and cost-effective roof repairs available. In the vast majority of cases, we can repair or replace individual flashings without disturbing the surrounding roof tiles or metal sheeting. This makes flashing repair significantly less expensive and disruptive than broader roof work. We carefully lift adjacent tiles or sheeting to access the flashing, complete the repair or replacement, and re-seat everything to its original weathertight condition.
We always prioritise proper metal flashing installation over silicone-only repairs. While high-quality roofing silicone has its place for sealing laps and minor joint gaps, it is not a substitute for correctly formed and installed metal flashings. Silicone degrades within 5–10 years under UV exposure and thermal cycling, whereas properly installed metal flashings last decades. If a previous tradesperson has applied silicone over a failed flashing, we remove the silicone, address the underlying flashing defect, and install a permanent repair.