Roof repairs in Mosman

Federation and interwar homes, terracotta tile, and blocks that fall to the harbour.

30+ years roofing expertise
Fully licensed & insured
Emergency roofing 24/7

The roofs of Mosman

Mosman was largely built between the 1890s and the 1930s, and its Federation and interwar houses still carry the terracotta tile, slate and decorative ridges they were built with. Much of the suburb sits in heritage conservation areas. The land falls hard toward the harbour on almost every side, so many houses stand on sandstone with steep driveways, long stairs and a roof that is two storeys up at the back. Add salt air off the water and heavy tree cover, and the gutters and valleys need more attention than the tiles do.

Terracotta outlasts almost everything else on a Mosman roof. What fails is the mortar under the ridges, the valley irons that hold leaf litter and rust from underneath, and old galvanised gutters. Replacing rusted valleys and re-bedding ridges is flashing and valley and tile roof repair work that keeps the original tile where it belongs.

On a steep harbour block, access is the first question: where scaffold can stand, whether a lower roof can take foot traffic, and how materials get down a long flight of stairs. We settle that on site before anything is quoted. Mosman and North Sydney are our harbour end of the Lower North Shore, and the Rosebery office takes calls at any hour.

What’s on the roofs here

Federation terracotta tile
Interwar tile
Slate
Steep harbour blocks

Get a free quote in Mosman

Tell us what’s going on and we’ll call you back to arrange the free inspection and written quote.

Roof & gutter services in Mosman

Ordered for the roof stock we see most around Mosman. The rest of what we do follows.

Broken ridge tiles and failed pointing on a terracotta roof

Tile roof repairs & repointing

Terracotta and concrete tile, fixed where it's actually failing.

What we fix: grey mortar crumbling or missing along the ridge; tiles sitting crooked, lifted or with visible gaps.

View tile & repointing

Lead flashing against heritage brickwork on a chimney

Flashing, valleys & sarking

The joins where most leaks start.

What we fix: a leak that only shows in wind-driven or sideways rain; damp patches on a wall where it meets the roof.

View flashing & valleys

Gutter repairs & replacement

Overflowing, rusted or pulling away. Fixed before the water reaches your walls.

What we fix: water pouring over the front edge of the gutter in heavy rain; rust spots, holes or brown streaks running down the fascia.

View gutters & downpipes

Cracked ridge capping with perished mortar on a terracotta tile roof

Roof leak repairs

We follow the water back to where it gets in, then fix that spot.

What we fix: a brown ring on the ceiling that spreads after each storm; paint blistering or peeling along the cornice.

View leak repairs

Temporary tarpaulins covering an exposed roof during works

Emergency & storm damage

A real person answers, any hour. We stop the water first.

What we fix: water running or dripping through a ceiling, light fitting or cornice; tiles, ridge caps or metal sheets blown off or shifted.

View emergency 24/7

Roof vent penetration with a split, rusted collar

Metal roof repairs

Rusted sheets, loose screws and leaking flashings on Colorbond and iron.

What we fix: orange rust patches or pinholes in the sheeting; a sheet that rattles or lifts when the wind picks up.

View metal roofs

Also in Mosman:Slate roof repairs Re-roofing & roof replacement Skylights & roof windows Commercial & strata roofing

The same answers on every job

30+
Years on Sydney roofs
Family-run by Michael and Sean. Not a franchise, not a call centre.
24/7
A real person answers
Day, night, weekends and public holidays. Storms don't keep office hours.
$20m
Public liability
Fully licensed and insured for domestic, strata and commercial work.
Rosebery
Central Sydney base
Close to the city, the east, the inner west and the bridge.

Also nearby

Common questions

How much does a roof repair cost in Sydney?

Roof Repairs Sydney prices each job after inspecting the roof, because the cost depends on how much of the roof is affected, the roofing material, how hard the roof is to reach, and whether water has damaged the timber underneath. The inspection and quote are free. You get a fixed written price before any work begins, and nothing starts until you approve it.

Is the roof inspection and quote free?

Yes. Roof Repairs Sydney inspects the roof, photographs what it finds and gives you a fixed written quote at no cost. There is no obligation to go ahead, and you won't be pressured if you decide not to.

Is Roof Repairs Sydney open 24/7?

Yes. Roof Repairs Sydney is open 24 hours a day, seven days a week, including weekends and public holidays. A real person answers 1300 077 018 at any hour. For a leak or storm damage at night, the roof is made safe first, and the permanent repair is quoted and done once the weather is dry.

Why is my ceiling stained when the roof looks fine?

A ceiling stain is rarely directly below the leak. Rain gets in higher up, runs along the sarking, battens or rafters, and drips at the first low point, which can be metres away. That is why patching the roof straight above a stain often fails. Roof Repairs Sydney traces the water back to its real entry point before quoting a repair.

Which areas of Sydney does Roof Repairs Sydney cover?

Roof Repairs Sydney is based in Rosebery and covers central Sydney: the CBD and inner city, the Eastern Suburbs to the coast, the Inner West, the Lower North Shore, Manly, Ryde and Hunters Hill, St George and the Sutherland Shire. If your suburb isn't listed, call 1300 077 018 and ask.

Does Roof Repairs Sydney do strata and commercial roofs?

Yes. Roof Repairs Sydney works on domestic, strata and commercial roofs, including apartment blocks, offices, shops and warehouses. Common jobs are box gutter and sump repairs, leaks into top-floor units and metal roof repairs. Strata and building managers receive a photo report and a fixed written quote before work starts.

Is Roof Repairs Sydney licensed and insured?

Yes. Roof Repairs Sydney is fully licensed and insured for domestic, strata and commercial roofing work, and carries $20 million public liability cover.

Who runs Roof Repairs Sydney?

Roof Repairs Sydney is a family-run business led by Michael and Sean, with more than 30 years of experience on Sydney roofs. The business is based in Rosebery and repairs tile, metal and slate roofs on homes, strata buildings and commercial properties across central Sydney.

What types of roofs does Roof Repairs Sydney repair?

Roof Repairs Sydney repairs terracotta and concrete tile roofs, Colorbond and corrugated iron roofs, and natural slate roofs, including heritage slate on Victorian and Federation terraces. The work covers leaks, gutters and box gutters, flashings and valleys, skylights, storm damage and full roof replacement.

Should a tile roof be repaired or replaced?

A tile roof should be repaired when the tiles are sound and the problem is failed ridge pointing, a few broken tiles or a rusted valley, which covers most tile roofs. Replacement is worth considering when tiles are cracking across large areas or repairs keep failing in new spots. Roof Repairs Sydney photographs the roof so owners can see which case applies.

What is included in a tile roof restoration?

A tile roof restoration usually means replacing broken and slipped tiles, re-bedding and repointing the ridge and hip caps with a flexible compound, renewing rusted valley irons and treating moss and lichen. Roof Repairs Sydney inspects first and quotes only the parts the roof actually needs.

Can a slate roof be repaired instead of re-slated?

Often, yes. Most slate roof problems are cracked slates, slates slipped from rusted nails, or worn lead flashings. Roof Repairs Sydney replaces them with matched slate fixed using copper or stainless steel. A full re-slate is only needed when fixings are failing across the whole roof. In heritage areas, council may require slate to be replaced like for like.

This page was last reviewed on 17 October 2026 by Roof Repairs Sydney.

What Sydney customers say on Google

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Constance

Google review

Emergency leak on the weekend. Sean was on site within 10minutes and managed to fix it in no time. Great service, quick, friendly and professional. Highly recommend him and his team.