Flashing Repair in Mandurah
Professional flashing repair services for Mandurah homes and businesses. Licensed, insured, and backed by Dulux 15-year manufacturer warranty on materials. Suitable for metal roofs and tiled roofs and flat roofs across Mandurah.

Licensed & Insured
Dulux Accredited
5 Stars
Free Quotes
Why Choose Us for Flashing Repair in Mandurah?
Flashing is where most Mandurah leaks start. Salt air gets to the metal around vents, skylights, and valleys, and corrosion spreads fast. We see failed flashing across Halls Head and Meadow Springs where cheap materials don't stand up to the salt. Our flashing work uses marine-grade metals so you don't get the same leak next year. We replace the old flashing, seal it properly, and stop water working its way back in through the join. It looks simple but keeping future leaks out is the whole point.
Mandurah flashing fails at gutters, valleys, roof vents and chimneys where metal meets tile. Salt gets under the edges and rusts the metal from the inside out. Wind-driven rain pushes water through gaps you can't see from ground level. We replace flashing with marine-grade materials. Pre-2000 homes often need flashing replacement as part of coastal restoration.
Roof restoration in Mandurah with marine-grade coatings for coastal homes. Dulux Acratex accredited, 15-year warranty. Call 08 6388 4492.
What's Included
- Free Satellite Quote - We measure and assess your roof from professional satellite imagery, no on-site inspection needed
- Fixed-Price Quote - No hidden costs, transparent pricing before work begins
- Professional Service - Licensed tradespeople with years of Mandurah experience
- Premium Materials - Dulux Acratex products with 15-year manufacturer warranty
- Quality Guarantee - 12-month workmanship warranty on all services
Local Mandurah Expertise
Recent Roof Work in Mandurah
A sample of real jobs from our records in Mandurah.
Roof repointing
276 m² · Centurion · Rivergum · 2026
Roof repointing
244 m² · Centurion · Charcoal · 2022
Benefits of Flashing Repair for Mandurah Properties
Seals the most common leak point
Flashing is the metal that seals the joins where the roof meets a chimney, wall, valley or vent. It's where most roofs leak, and where we fix more leaks than anywhere else.
Repaired properly, not bodged
If the flashing's just lifted or the seal's perished, we strip it back and reseal it. If it's rusted or was never installed right, we patch and re-secure the join so it sheds water again. Either way it's done to last, not bodged with a tube of silicone.
Stops the leak at the source
Sealing the flashing fixes where the water's actually getting in, so the ceiling stain stops spreading and doesn't come back next storm.
Fully insured
We carry $10M public liability and work safely across tile, metal and flat roofs throughout the Perth metro.
Our Flashing Repair Process in Mandurah
- 1
Find the failed flashing
We inspect the chimneys, walls, valleys, vents and penetrations and identify which flashing has lifted, perished or rusted.
Why it matters: Flashing failures are easy to miss from the ground.
- 2
Strip the old seal
We remove the failed flashing or perished sealant back to a clean, sound surface.
Why it matters: New sealant won't bond over old, cracked material.
- 3
Reseal and re-secure
We reseal sound flashing and patch or re-secure it where it's lifted or rusted, lapped and fixed so water sheds away from the join.
Why it matters: Correctly lapped flashing sends water out, not in.
- 4
Check the surrounding roof
While we're at the join we check the nearby tiles, pointing and valleys, since flashing leaks often sit alongside other wear.
Why it matters: Where one thing's failed, the next is usually close.
Flashing Repair in Mandurah - FAQs
Do you provide flashing repair in Mandurah? ▾
Yes. Roof Restorers Perth provides flashing repair across Mandurah and nearby Kelmscott, East Fremantle, Kalamunda. Roof restoration in Mandurah with marine-grade coatings for coastal homes. Dulux Acratex accredited, 15-year warranty. Call 08 6388 4492. Call 6388 4492 for a free, no-obligation quote.
How do I know if my flashing is failing? ▾
Look for water stains on interior ceilings or walls near the roof edge, or rust streaks and white salt stains outside around roof vents and gutters. Check the attic for rust or moisture. Any of these means get it assessed within a month.
Is it cheaper to patch damaged flashing or replace it? ▾
Patching costs less upfront but lasts only 2-3 years as salt keeps corroding underneath. Full replacement runs $400 to $800 per area and lasts 15-20 years. Over time, replacement is better value on coastal properties.
How much does roof flashing repair cost in Perth? ▾
A reseal of sound flashing is a small job. Patching and re-securing rusted or badly installed flashing costs more, especially around a chimney. We find what's failed first, then give you a price before any work starts. Call 08 6388 4492.
Can you fix chimney flashing? ▾
Yes. Chimney flashing is one of the most common leak points on a roof. We reseal or patch the flashing around the chimney so water sheds away from it instead of tracking down inside.
My roof leaks where it meets a wall. Is that flashing? ▾
Almost certainly. The join where a roof meets a wall is sealed with flashing, and it's a classic leak spot when that flashing lifts or perishes. We reseal or patch it to fix it for good.
Do you replace valley flashing? ▾
Yes. Rusted-through valleys are a major leak source on older Perth roofs. We repair the valley iron where it's still serviceable, and there's a dedicated valley replacement service if the whole valley's gone.
Will silicone fix my flashing leak? ▾
A smear of silicone might hold for a few months, but it's not a repair. Failed flashing needs the old seal stripped and the join resealed or patched properly. That's what actually lasts.
What Our Customers Say
"Jack from Roof Restorers Perth was great. So friendly and very respective. Great Company to deal with and highly recommend"
"Fran Walsh gave Roof Restorers Perth 5 stars."
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