Roof flashing Sydney

If compromised, deteriorated, inappropriately matched to your roof or poorly installed, the lifespan of your roof and the crucial structures beneath it are likely to be severely shortened. But what is roof flashing, exactly? Typically made of thin sheets of high-quality materials, it’s strategically installed at your roof’s most vulnerable points and intersections including chimneys, vents and valleys. It then redirects water away from these joints and vulnerabilities to stop it from wreaking havoc inside your roof and home. Hence it’s critical to preventing roof leaks.

Roof flashing is a protective material, typically metal, installed at intersections and joints on a roof - such as around chimneys, skylights, and valleys - to direct water away and prevent leaks, protecting your home from costly water damage.

Common signs include rust, cracks, gaps, water stains on ceilings or walls, visible mold, and detached or bent flashing. Prompt professional inspection is recommended if you notice any of these issues to prevent further damage.

Professional installers use durable materials like Colorbond, galvanised steel, or aluminium, selected for their resistance to harsh Sydney weather and compatibility with a variety of roof types and architectures.

It depends on where the flashing is, its length and the metal. A vent collar is a short job, while chimney flashing takes longer. We do not charge a call out fee, and the price is agreed before we start work.

Look for bent, rusted or lifted metal, gaps between the flashing and the wall, and sealant that has cracked or pulled away. Ceiling stains near a chimney, wall or skylight are the other sign. A plumber can check it from the roof.

Yes, if the metal itself is sound and only the sealant has failed. Rusted, bent or incorrectly fitted flashing should be replaced, because sealant on its own will not last. We tell you which applies before we price the job.

Yes. Flashing has to be cut, lapped and fixed so that water runs over every join and never into it, and the work is on a roof. Getting the lap direction wrong makes a leak worse. A licensed plumber knows the details.

We use the metal that suits your roof: pre-painted steel to match steel sheeting, and other metals such as zinc or copper where the roof or the wall calls for them. We pick it to match the roof and the weather exposure.

Both trades work on it. Roof plumbing covers the metal work that keeps water out of joins, including flashings, gutters and valleys. A licensed plumber can repair or install flashing and the fixings that hold it.

The whole of Sydney, including Bellevue Hill in the Eastern Suburbs, Girraween in Western Sydney, and the Northern Beaches, North Shore, Inner West, Hills District, Sutherland Shire, South West Sydney and Canterbury-Bankstown.

Often. Work at height in NSW falls under SafeWork NSW rules, so steep, high or fragile roofs need edge protection, harnesses or scaffold. That is one reason to leave roof flashing repairs to a licensed plumber.

Chimney flashing comes in two parts: an apron and side soakers that sit under the roof sheets or tiles, and a counter flashing set into the brick mortar above them. Brick and roof move at different rates, so that mortar joint cracks and the sealant dries out. Water then runs behind the counter flashing and down inside the chimney breast, often showing as a stain beside the fireplace.

Metal flashing matched to the roof usually lasts as long as the roof itself. What gives out first is the sealant at joints and around pipes and vents, which breaks down in the sun. We use folded joints and mechanical fixings wherever we can, so the flashing does not depend on a bead of sealant to stay watertight.