Roof Leak Repairs After Storms.Done Right.

Finding where the water comes in

Where a stain shows on the ceiling is rarely where the leak starts. Water travels along battens, rafters and sarking before it drips. Look for patterns: stains below a chimney, valley, skylight or vent, leaks only in wind-driven rain, or leaks after any rain. Those details narrow the search before anyone goes on the roof.

Common causes on Australian roofs

Cracked or slipped tiles, rusted valley gutters, worn flashings at walls and chimneys, loose ridge capping, blocked box gutters and failed sealant around penetrations are the usual suspects. Older metal roofs leak at fixings that have worked loose. Each cause needs a different repair, which is why a dab of sealant often fails within months.

Tiles, metal and flashings

On a tiled roof, a cracked or slipped tile lets water onto the sarking, and the leak can show up far from the damage. Metal roofs usually leak at fixings, laps and flashings. Flashings, the metal strips that seal junctions with walls and chimneys, are a common failure point on both. The repair method, and how the roof can be walked on, differ for each.

Skylights, vents and chimneys

Anything that pokes through the roof is a possible leak point. Skylight flashings, chimney flashings, vent pipes, solar panel fixings and antenna mounts all rely on a seal that ages. If the stain on the ceiling sits below one of these, mention it when you call.

What to do inside the house

Move furniture and put a bucket under the drip. If a ceiling bulges, a small hole can release the water, but only if you can do it safely and away from light fittings. Switch off power to the area if water is near wiring. Take dated photos of everything for your insurer.

Temporary and permanent fixes

A tarp properly tied down can reduce water entry until the repair, but putting one up on a wet roof is dangerous and is a job for someone equipped for it. A permanent repair deals with the actual cause, whether that is a replaced tile, a new flashing, a relaid valley or resealed penetration.

Insurance and records

Keep photos, the findings of whoever inspects the roof and the invoice. Read your policy for storm damage and for wear and tear, because insurers often treat sudden storm damage and long-term deterioration differently. Ask your insurer what it needs before repairs begin.

Safety and access

Roof work is a fall risk. Do not climb onto a wet or steep roof to look for a leak. Professionals use fall protection and proper access equipment. Photos from a window or a ladder at the eaves help without putting you at risk.

Checking after the repair

Look at the ceiling after the next rain, note any new stain and whether an old one grows. If water returns, tell the person who did the work and send dated photos. A good repair should hold through the next heavy rain.

Questions people ask about roof leaks

Is a roof leak an emergency?

Water coming through a ceiling near lights, a bulging ceiling or a heavy storm leak is urgent. A slow drip in one spot can often wait for the next business day with a bucket underneath.

Can I fix a leak with sealant?

Sealant can be a short-term patch on a small gap, but it often fails on movement and sun. It is not a fix for a failed flashing or a damaged tile.

Why does it leak only in strong wind?

Wind-driven rain is pushed sideways and upward under flashings and laps that cope with ordinary rain. That points to a flashing or lap problem.

Who should I call, a plumber or a roofer?

Leaks at gutters, valleys and flashings are roof plumbing. A broken tile or sheet may need a roofer. We can look at the cause and tell you which it is.

Roof leak or condensation?

Not every ceiling stain is a roof leak. Condensation in a roof space, a leaking pipe or an air-conditioning drain can cause similar marks. Roof leaks usually correlate with rain, appear after storms and often follow the line of a rafter or batten. Condensation shows in cold weather without rain. Tell the plumber when the stain appears, and check roof-space pipes and duct drains before you assume the roof is at fault.

How a plumber finds a roof leak

A plumber inspects from the ground and from the roof if safe: tiles or sheets, flashings, valleys, penetrations, gutters and ridge capping. Water testing, running a hose over one area at a time while someone watches inside, can confirm the entry point. It is slow, but it avoids replacing parts that are not the cause.

What a lasting repair looks like

A repair should address the actual cause: replace a cracked tile and refix its neighbours, replace a rusted valley section, reflash a chimney, reseal and refix a vent or relay a section of ridge capping. Ask for photos of the problem and the repair, and ask what the plumber would check if the leak returns.

Finding the entry point

Water travels along rafters and sarking before it drips. A plumber checks flashings, valleys, penetrations and sheets, and may use a hose test. Photos from the roof space help.

Mark the stain and note when it appears, for example only in wind and rain.

Temporary protection and permanent repair

A tarp or sealant can limit damage until a proper repair. Permanent repair replaces failed parts. Ask what is temporary and what is permanent.

Check insurance for storm damage.

Preparing for storm season

Before winter and spring storms, clear gutters and valleys, check flashings and look for loose or rusted sheets or cracked tiles. Check the roof space for stains, daylight or damp insulation after rain.

A small repair before a storm costs less than ceiling damage afterwards. A plumber can inspect and tell you what is urgent.

Related plumbing services

• Stormwater Drains: Stormwater pipes cleared, repaired and renewed so water leaves your property properly.
• Gutters and Downpipes: Leaking, sagging and blocked gutters and downpipes repaired or replaced.
• Roof Plumbing: Flashings, valleys, gutters and roof leaks fixed by a plumber.
• Emergency plumbing is available 24 hours a day, 7 days a week

Talk to GSA Plumbing Services

Call 0401 041 103 or send an enquiry on the contact page. We work across Geelong, Melbourne and surrounding suburbs.