Costs, Price Factors and 2026 Rules
House cladding replacement cost in Australia: fibre cement, weatherboard, steel and render compared
Illustrative per-square-metre costs to re-clad an Australian house, how to measure wall area, the extras that add up, and asbestos, bushfire and approval checks.
Re-cladding the walls of an Australian house is priced mainly by the square metre of net wall area (walls minus large windows and doors), plus removal of the old cladding, scaffold, flashings around openings and painting. On this site's illustrative ranges, fibre cement sheet runs about $80–$150 per m², fibre cement weatherboard $100–$180, timber weatherboard $120–$230, pre-painted steel cladding $90–$170, and render or texture coat over existing masonry $60–$130. These are not market rates. The real price depends on the condition of the wall frame, whether the old cladding contains asbestos, the number of storeys, the bushfire attack level and how many corners and openings need detailing.
This guide is part of the roof replacement cost overview.
Measuring your wall area
- Measure the length of each external wall at ground level.
- Multiply by the wall height (eaves to ground, about 2.4–2.7 m on many single-storey houses).
- Add gable ends: a triangular gable is half the width × the height of the triangle.
- Subtract large windows and doors, but keep small windows in, as trimming around them takes extra time.
Worked example. A single-storey house is 16 m × 10 m. Perimeter = 2 × (16 + 10) = 52 m. At 2.7 m high, gross wall area = 52 × 2.7 = 140.4 m². Two gables each 10 m wide and 1.8 m high add 2 × (0.5 × 10 × 1.8) = 18 m², giving 158.4 m². Subtract 22 m² of large windows and doors: net area ≈ 136 m².
Illustrative cost comparison
| Cladding | Illustrative range per m² | Upkeep | Notes |
|---|---|---|---|
| Fibre cement sheet or panel | $80–$150 | Repaint periodically | Joints can be expressed or set; needs correct sarking and flashings |
| Fibre cement weatherboard | $100–$180 | Repaint periodically | Weatherboard look with lower timber maintenance |
| Timber weatherboard | $120–$230 | Paint or stain regularly | Species and treatment matter; check bushfire suitability |
| Pre-painted steel cladding | $90–$170 | Wash and inspect | Dents possible; good for some bushfire sites |
| Render over existing masonry | $60–$130 | Repaint; crack repairs | Not a replacement for failed cladding on a timber frame |
Worked cost (illustrative). For the 136 m² house above in fibre cement weatherboard at $100–$180 per m², plus $5,000 fixed for removing old boards, scaffold and waste: low = 136 × 100 + 5,000 = $18,600; high = 136 × 180 + 5,000 = $29,480. Try it in the cladding cost estimator.
Extras that change the price
- Asbestos. Fibro on houses built before about 1990 may contain asbestos. Test it first. If it does, removal over 10 m² needs a licensed removalist; see the asbestos guide. This can add thousands of dollars.
- Frame repairs. Old cladding often hides rotten bottom plates, termite damage or rusted wall ties. Ask how repairs will be priced if found, for example a rate per lineal metre.
- Sarking and wall wrap. A vapour-permeable wall wrap behind the cladding manages moisture; it should be in the quote.
- Windows and doors. New flashings and trims around every opening are labour-heavy. Replacing windows at the same time is a separate cost and has its own energy efficiency rules.
- Two storeys. Scaffold for upper storeys adds cost and time.
- Painting. Some prices are for cladding installed primed only; painting is a separate trade.
- Bushfire rating. Higher BAL levels restrict materials and require ember-proof detailing. See bushfire and wind requirements.
Rules that apply to house cladding
- Licensing and insurance. Re-cladding is building work. The same licence, home warranty and deposit thresholds apply as for roofing: see licence thresholds by state and home warranty insurance.
- Approvals. Changing cladding in a heritage area, altering the frame, or building close to a boundary can need approval. See council approval.
- Fire. Houses do not have the same non-combustibility rules as apartment buildings, but boundary walls and bushfire sites do have fire requirements. See combustible cladding rules.
Re-clad, repair or overclad?
| Situation | Usually sensible |
|---|---|
| A few damaged boards, sound frame | Patch repair with matching boards and repaint |
| Widespread rot, cracking or water entry | Full removal and re-clad with new wrap and flashings |
| Sound but ugly masonry | Render or texture coat |
| Old asbestos fibro in fair condition | Get advice; overcladding is sometimes proposed but removal may be required or preferable |
Overcladding (fixing new cladding over old) can trap moisture and hide defects, and over asbestos it raises disturbance and disposal questions. Ask the contractor to explain how moisture and fixings will be handled.
Frequently asked questions
Is fibre cement the cheapest option?
On the illustrative ranges it is among the cheaper options per square metre, but painting, joints and detailing can close the gap with steel. Compare total quoted prices, not material rates.
Does new cladding improve energy efficiency?
Cladding alone has limited insulation value. Adding wall insulation while the cladding is off is usually the best opportunity to improve thermal performance.
Can I re-clad one side of the house only?
Yes, but matching profiles and paint can be hard, and junctions need careful flashing.
How long does re-cladding take?
A single-storey house can take one to several weeks depending on removal, frame repairs, weather and painting.
Sources
- Australian Building Codes Board — Housing Provisions for external walls and weatherproofing
- Safe Work Australia — asbestos removal rules
- Consumer Affairs Victoria — renovation contracts and quotes
- Queensland Building and Construction Commission — licensing and home warranty for residential work
- Standards Australia — AS 3959 bushfire construction
