Roof restoration on the Northern Beaches

What roof restorations on the Northern Beaches involve

A restoration brings back a roof whose tiles or sheets are still sound but whose surface, pointing and fixings are tired. It isn’t a new roof: it’s the repair and maintenance jobs done in one go, finished with a protective coating. What’s on the list depends on whether the roof is tile or metal.

A tile roof restoration

Contractors’ published scopes for concrete and terracotta tile roofs follow much the same order:

• Clean. The tiles are pressure cleaned to lift moss, lichen and grime.
• Repair. Cracked and broken tiles are replaced with a matching profile.
• Rebed and repoint. The ridge and hip capping is rebedded where the mortar has failed, then repointed.
• Coat. A primer or sealer, then two membrane coats in the colour you choose.

Valley irons, a large number of broken tiles and extra rebedding are often priced on top. If the ridge capping is the only problem, a ridge capping repair may be all the roof needs.

A metal roof restoration

On Colorbond, Zincalume and older iron roofs, the work is in the fixings and joins. Contractors describe replacing rusted screws, tightening loose fixings, resealing the flashings and the laps where sheets overlap, then priming and two membrane coats. Near the surf, it’s worth asking which screws go back in: Lysaght’s fastener bulletin lists AS 3566.1 Class 4 screws for severe exposure conditions.

A restoration only works while the sheets themselves are sound. A sheet that’s rusting through, rather than rusting at the screws and cut edges, needs replacing, not coating.

Roof painting and coatings

The coating is the part you see, and on its own it’s roof painting. A restoration does the repairs before the paint goes on, which is why the two are priced differently. One Sydney contractor publishes $3,500 to $9,000 for painting a typical Sydney home, and $4,000 to $12,000 for painting with full repairs, rebedding and repointing (undated page, GST not stated).

In NSW, painting is its own contractor licence class. The roof tiling licence also includes “putting protective coatings on roofs”, and the roof plumbing licence includes “work to put on protective coatings”, in both cases where the work doesn’t make structural changes to the roof. So the person coating your roof might hold any of the three, and on a job over $5,000 they must hold the right one.

Restore or replace?

Restoration suits a roof that’s sound underneath. Talk to a roofer about replacing instead when:

• tiles are crumbling or cracking across whole sections, not just here and there
• metal sheets are rusting through, not only at the screws and laps
• the roof is asbestos cement, where SafeWork NSW’s advice is that replacing it is the best solution
• the same roof needs repairs every year

Near the coast, the steel matters if you replace. BlueScope’s selection guide recommends standard Colorbond (Classic and Matt finishes) only more than 200 m from breaking surf, and Colorbond Ultra more than 100 m away; closer than that, it points to stainless steel. Our guide to Colorbond, Colorbond Ultra and Zincalume near the coast explains how to measure it, the coastal roof material finder checks your distance, and the roof replacement page covers re-roofing.

Salt air: washing between restorations

BlueScope’s maintenance bulletin (TB-4) says its coated steel in places the rain doesn’t wash, such as fascias, wall cladding under the eaves, garage doors, and the underside of eave gutters, carports and patios, needs regular cleaning: “Washing should be done six monthly as a minimum, or three monthly in locations such as coastal areas where marine salt spray is prevalent”. That covers the sheltered steel, not the open roof sheets the rain rinses.

Roof restoration prices

We couldn’t find a Northern Beaches roofer that publishes its own restoration prices, so these are a Western Sydney contractor’s dated bands and a Sydney contractor’s figures, each shown as published. The roofer prices your restoration once they’ve seen the roof.

Published tile and metal restoration prices

A Western Sydney roofing contractor’s cost guide (updated 17 April 2026), checked 1 October 2026. It says the prices include a “Full clean, rebed, repoint, two-coat Dulux application, minor tile replacements” and “all labour, materials, and site cleanup”, and that they are “based on current Western Sydney pricing”. It doesn’t say whether GST is included.

Published Sydney restoration prices

Both figures come from one Sydney contractor based in Oatley, checked 1 October 2026. Its pages are undated and don’t say whether GST is included. Its Sydney page says the price depends on “size, pitch, access and how much rebedding is needed”. The two pages don’t agree with each other, so we show both as published rather than pick one.

Two storeys, a steep pitch and access on a sloping block add to most of these. The roof restoration cost guide has national per-m² rates, the extras that are priced separately and what a restoration quote should list.

Who can do the restoration

NSW Fair Trading says you must hold a contractor licence to “carry out, advertise or contract for” building or trade work valued at more than $5,000 in labour and materials, including GST. For a restoration:

• Roof tiling covers tiles, tile bedding and pointing, valleys, and protective coatings on roofs.
• Roof plumbing covers metal roofs, flashings, gutters and downpipes, and protective coatings.
• Painting is a separate licence class for applying paints and coatings.

Over $5,000 the contract has to be in writing and show the licence holder’s name and licence number. You can check both on the Service NSW licence register.

What to have ready

• What the roof is made of (concrete tile, terracotta, Colorbond or iron) and roughly how old it is
• Single or two storey, and how steep the block is
• What you’re seeing: fading, moss, cracked pointing, rust at the screws, leaks
• Photos from the ground, and whether you want the colour changed
• Whether there’s any fibro on the roof, gutters or eaves

Common questions