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Sill Flashing?

Water can easily find its way into a building through window and door openings if the flashing is damaged or missing. Sill flashing directs water away from the frame so it cannot track into the wall cavity. We repair old flashing, install new systems and check the surrounding areas for signs of moisture. All sill flashing is fitted to current BCP roofing and wall cladding requirements.

Plumber repairing a pipe under a sink

Why Sill Flashing Matters

Windows and doors are common spots for leaks because they create breaks in the wall surface. If water runs down the cladding and reaches an unprotected sill, it can soak into the wall, rot the frame or cause stains inside the home. Sill flashing creates a barrier that guides water outwards. We check the condition of the opening, look for gaps or movement and make sure the flashing sits in the right position to do its job.

Replacing Damaged or Missing Flashing

Old flashing can crack, rust or come loose over time. Once it starts lifting, water can sneak underneath and work its way into the wall. We remove the damaged section, inspect the timber or masonry underneath and fit new flashing that sits neatly under the cladding or brickwork. Everything is sealed and secured so water drains away rather than into the structure.
After the job is finished, we check the area with a light water test to make sure the leak is resolved.

Sill Flashing for New Builds and Renovations

If you are renovating or building, sill flashing needs to be installed before the window or door frame goes in. We work with builders and homeowners to set up the flashing correctly so the frame can sit over it without issues. We make sure the angles, overlaps and drainage points are right so the flashing can handle heavy rain. Once it is installed, we double check the cladding or brickwork sits correctly around the frame.

Need Sill Flashing Installed or Repaired?

If you have water marks near a window or door, or you are unsure whether the flashing has been installed properly, get in touch with us. Call 03 9498 0458 or email info@heritageplumbinggroup.com.au and we can arrange a site visit.

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Frequently Asked Questions

Do you have questions about 

maintenance plumbing?

How do I know if my sill flashing is failing?
Can you repair flashing on brick and cladding homes?
Do you install flashing for new windows?
Why does water get in around windows?
Is sill flashing a requirement?
How much does sill flashing cost?
Backflow Prevention Association of Australia
Victorian Building Authority
Master Plumber
Yarra Valley
Ray White
Nelson Alexander
My Chemist
Coles Express
Chemist Warehouse
Billi
Arova
Backflow Prevention Association of Australia
Victorian Building Authority
Master Plumber
Yarra Valley
Ray White
Nelson Alexander
My Chemist
Coles Express
Chemist Warehouse
Billi
Arova

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For sill flashing repairs or installation, call 03 9498 0458 or email info@heritageplumbinggroup.com.au We can assess the opening and give you clear advice and pricing.

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Servicing Melbourne & Surrounding Areas

Need a reliable plumber near you? Heritage Plumbing Group offers expert solutions across Melbourne with fast response times and top-quality service.

Our licensed team brings decades of local expertise, ensuring efficient, long-lasting results for emergencies, maintenance, and major projects.