Roof leak repair cost: the roof, the ceiling and who pays

A roof leak produces two bills, sent by two different trades. The roofer fixes where the water got in; someone else fixes where it ended up — the ceiling sheet, the insulation, the cornice, sometimes the carpet. This page puts the published figures for both halves side by side, then sets out whose bill each one is.

The roof: published repair prices

hipages also publishes single example figures by type of job. They are examples, not ranges, and are shown that way here:

For a whole-roof job, the same source gives total repair and restoration at $3,000 to $4,700 for a 100 to 150 square metre roof, rising to $9,400 to $12,500 for 250 to 300 square metres. The useful comparison is between the first table and the last line: a leak traced to one cracked tile or a failed ridge cap is a different job from a roof that is leaking in several places because it is worn out. A roofer’s written report saying which it is matters twice — for the repair quote, and for any insurance claim.

Underneath: the ceiling, the insulation and the drying

Water through a roof lands on insulation and plasterboard first. A ceiling that only stained and dried firm may need sealing and paint; one that sagged or softened is cut out and replaced. On published hipages prices:

Before any of that, a wet ceiling cavity has to dry. One restorer’s published rate card puts one room dried over three days at $1,260 excluding GST, with equipment, extraction and call-out. Wet insulation is a separate question: no published Australian replacement price could be read from its source for this page, so none is given. Ceiling water damage covers drying the cavity and when a sheet has to go.

One leak, added up

A storm cracks two tiles over a bedroom. Rain gets in for a night before it is noticed, soaks the insulation and brings down a 3 square metre section of ceiling. On the published figures above:

• Roof: replacing roof tiles, $1,300 as hipages’ example.
• Drying: one room, three days, $1,260 excluding GST.
• Ceiling: 3 m² of plasterboard at $15–$20 per m² and 4 m of cornice at $4–$16 per metre — $61–$124, before painting.

Painting, electrical work around light fittings and new insulation are not included, because no published Australian prices for them were read. On these figures the roof repair and the drying are the two large lines, and the ceiling sheet is small.

Whose bill is it?

Standard home cover lists storm, tempest, flood (w… among its events (Insurance Contracts Regulations 2017 (Cth) reg 19(1)(a)(xiv)) and takes wear and tear, rust or corrosion back out (Insurance Contracts Regulations 2017 (Cth) reg 19(2)(b)). Where the insurer relies on wear and tear, the Australian Financial Complaints Authority’s approach is that the exclusion is the insurer’s to prove (AFCA, The AFCA Approach to general insurance claims handling (July 2026), s 2.4). Roof leak cover goes through that argument and the evidence to keep. In NSW, a tenant who arranges an urgent repair can be repaid up to $1,000 (NSW Government, Getting repairs done; Residential Tenancies Act 2010 (NSW) s 64(3)), and an owners corporation must properly maintain and keep in a state of good and serviceable repair the common property (Strata Schemes Management Act 2015 (NSW) s 106(1)).

Before any of it, make it safe. NSW SES says: “For permanent repairs contact your insurance company or speak with a private contractor.” (NSW State Emergency Service, When to call 132 500 (2025)). A tarp buys time; the photographs of the broken tiles taken before the repair are the claim’s evidence. Larger reinstatement can also bring in statutory home building insurance: in NSW it applies to residential building work over $20,000 including GST (NSW Government, Insurance cover for building work).

Common questions