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Roof Strip Cost Calculator

Estimate Australian 2026 cost to strip an existing roof prior to re-roofing — by area (m²), material (Colorbond, tile, slate, shingles, mod-bit), layers, batten condition, storey, access, and tip distance. Includes skip bin, batten replacement, council permit, and sarking removal.

Roof Strip Cost Calculator

Estimate Australian 2026 cost to strip an existing roof prior to re-roofing — by area (m²), material being removed (Colorbond sheeting, tiles, slate, asphalt shingles, mod-bit, single-ply), number of layers, batten condition, storey, access, and tip distance. Includes skip hire, batten replacement, council permit, and sarking removal lines.

Estimated strip cost
$49,545
Range: $42,113 – $59,454 · $25 per m² installed
11 skip bins needed · 26000 kg estimated waste weight
labour + bin + battens + permit + sarking + flashing
Strip labour
$28,000
Skip bin hire
$5,720
Batten / sarking repair
$7,765
Council permit
$220
Sarking removal
$5,600
Flashing removal
$2,240

What this calculator estimates

This calculator quotes the labour and disposal cost to strip an existing roof down to the rafters in preparation for a new roof installation in 2026 Australian dollars. It separates the strip scope from the new-system installation, which is what every legitimate Master Builders or HIA quote should do. Use this number as the strip line you expect to see on a roofer’s estimate.

The bill is split into the line items real Australian re-roof contractors invoice:

  • Strip labour — slate ripper or pry-bar removal, careful set-aside of any salvageable tiles or ridges, scaffold load-out. Priced per m² at the production rate, scaled by material weight and overlay count.
  • Skip bin and disposal — typically one to three 4 m³ skip bins or one 9 m³ hook bin, sized to the total debris weight (area × layers × material weight). Includes delivery, collection, and tip fee on a 2.5-tonne load.
  • Batten and sarking repair line — visual inspection plus a percentage-of-area allowance for replacing rotten or non-compliant battens once exposed.
  • Council permit fee — bin permit where required, or asbestos notification fee on regulated jobs.
  • Sarking removal — stripping perished sisalation or AS/NZS 4200.1 sarking before installing new.
  • Flashing removal — pulling old valley flashing, apron flashing, and chimney saddles for replacement.

A minimum call-out fee floor of $620 applies on most Australian strip jobs. Small jobs under 40 m² hit the floor because mobilising edge protection, bin, crew, and tarps is the dominant cost on tiny scopes.

How to use it

  1. Roof area (m²) — measure the projected roof area on plan, not the surface area. For complex roofs, sum each plane.
  2. Existing roof material — drives both labour rate and disposal weight. Concrete or terracotta tile is the baseline; profiled Colorbond is lighter per m² but each sheet is screw-fixed individually; slate takes about 2x the labour for salvage.
  3. Existing layers — most Australian roofs are single-layer; tile-over-tile overlays are uncommon but tile-under-Colorbond conversions do occur.
  4. Batten or sarking condition — good (visual only), fair (~10 percent replacement, typical for a 30- to 40-year-old roof), poor (~25 percent replacement, typical for a roof with documented water ingress).
  5. Building height — single-storey is the baseline. Two-storey adds 10 percent. Three-storey or higher adds 25 percent for swing-stage or scaffold.
  6. Site access — easy (clear drive, bin fits), moderate (some shrubs, narrow drive), difficult (battle-axe block, crane required).
  7. Distance to tip or transfer station — near (under 20 minutes), standard (20 to 60 minutes), far (over 60 minutes / regional rate).
  8. Council bin permit or asbestos clearance — toggle ON if bin is on public road or if asbestos has been identified.
  9. Remove sarking / sisalation — toggle ON for any roof over 20 years old.
  10. Remove valley and apron flashing — toggle ON for most strips.

Typical 2026 Australian roof strip cost ranges

Scope (single-storey, easy access, fair battens)2026 strip price
80 m², 1 layer Colorbond$1,600 – $2,600
180 m², 1 layer concrete tile (4-bed home)$4,400 – $7,200
180 m², 1 layer terracotta tile$5,200 – $8,400
180 m², 1 layer slate$8,200 – $13,500
250 m² commercial profiled metal$4,800 – $7,800
180 m² ASBESTOS (Super Six / fibro) — licensed$14,000 – $24,000
Two-storey adder+10%
Three-storey or higher adder+25%
Difficult access (crane) adder+30%
Far disposal (regional) adder+30% on bin line

Add 8 to 15 percent in cyclone-rated regions (north of Tropic of Capricorn) where strip jobs require ARC Code C-compliant fall protection.

Cost drivers

Material weight. Strip labour and bin cost scale almost linearly with the weight of the existing material. Concrete tile is 46 kg/m²; terracotta tile is 47 kg/m²; slate is 39 kg/m² but takes 2x the labour for salvage; profiled Colorbond is 7 kg/m² but each sheet is screw-by-screw; cedar shingle is 11 kg/m². Heavier materials need more crew time per m² and more bin capacity.

Asbestos. Pre-1990 Australian roofs frequently contain bonded asbestos sheeting, asbestos ridge caps, or asbestos-felt sarking. Identification triggers a complete change of regulatory regime: SafeWork notification, Class B licensed remover, negative-pressure enclosure, wet stripping, asbestos-cell disposal, and clearance certificate. Add $40 to $90 per m² over the standard rate. Doing this work unlicensed is a criminal offence in every state.

Batten and sarking condition. Original undersized battens (38x19 mm common pre-1980) are below the current AS 2050 minimum of 38x25 mm and must be replaced regardless of condition. On a 30- to 50-year-old roof, plan for 10 to 30 percent of batten metres and the entire sisalation to be replaced once exposed. Common rot zones: eaves, around chimneys, valleys, and any area downhill of an obstruction.

Skip bin cost. A 4 m³ skip bin averages $480 to $620 in most Australian capitals in 2026, including delivery, collection, and tip fee on a 2.5-tonne load. Tonnage overage runs $80 to $160 per tonne. Sydney is 20 to 30 percent more expensive than Brisbane or Adelaide; regional NSW or rural Victoria adds 25 to 40 percent for tip distance.

Council permit. Bin-on-road permits run $75 to $250 in most local government areas in 2026. Asbestos notifications are typically free but require five working days’ notice. Heritage-listed property strips need a Development Application ($350 to $1,200+) — engage a planning consultant before quoting.

Building height and access. Single-storey, off-road drive, no overhead obstructions is the baseline. Two-storey adds 10 percent. Battle-axe blocks, sloping sites, or properties with no off-road parking add 20 to 30 percent for crane or curb-conveyor rental.

When a strip is required versus when an overlay is allowed

Strip required when:

  • Existing roof contains asbestos (always).
  • Tile or slate slippage, broken pieces, or perished sisalation.
  • AS 2050 batten-size non-compliance.
  • Sagging ridges or visible rafter deflection.
  • Active leaks at any location.
  • Insurance claim for cyclone, hail, or storm (carriers require sarking and batten inspection).
  • Change of material (tile to Colorbond) without an engineer-certified conversion frame.

Overlay only allowed when:

  • Deck and sarking are documented sound (rare on any roof over 20 years).
  • Existing rafters certified for the additional dead load by an engineer.
  • Manufacturer’s warranty explicitly allows overlay.
  • BCA / NCC compliance verified in writing by a building surveyor.

In practice, strip is the correct call on more than 95 percent of Australian re-roof jobs in 2026.

What to look for in a contractor

A competent Australian strip contractor will:

  1. Walk the roof and probe tiles, battens, and sarking before quoting — not quote from satellite imagery alone.
  2. Hold a state roofing licence (or Master Builders, HIA, or ARC accreditation).
  3. Hold a Class B asbestos removal licence if the property is pre-1990.
  4. Line-item strip, bin, batten allowance, scaffold, and permit on the quote.
  5. Provide a batten-replacement allowance (rate per linear metre) rather than a flat-fee number.
  6. Carry $20 million public liability insurance and current workers’ compensation.
  7. Provide a Statement of Compliance with AS 2050 on closeout.

Red flags: cash-only quotes, no state roofing licence, no asbestos licence on a pre-1990 property, vague strip pricing folded into the new-roof price, sub-$14/m² strip pricing, no batten-replacement allowance, no bin permit pulled where required.

Code references and standards (Australia)

  • AS 2050 — Installation of roof tiles (covers batten sizes, fixings, ridge laying).
  • AS 1562.1 — Design and installation of sheet roof and wall cladding — Metal.
  • AS 4200.1 — Pliable building membranes and underlays.
  • AS 1170.1 — Structural design actions — Permanent, imposed and other actions (dead-load assessment).
  • AS 3500.3 — Plumbing and drainage — Stormwater drainage (re-roof gutters and downpipes).
  • NCC / BCA 2025 — National Construction Code — Volume 2 (Class 1 and 10 buildings).
  • Work Health and Safety Act 2011 (state variants) — Edge protection, fall arrest, asbestos handling.
  • SafeWork Australia Code of Practice — How to Safely Remove Asbestos (2024).

Diagnostic checklist before stripping

Before signing the strip contract, walk the roof with the contractor and confirm:

  • Year of construction (pre-1990 = asbestos check mandatory).
  • Layer count (count at the eaves and at chimney abutments).
  • Batten size (38x19 mm fails AS 2050, must be replaced).
  • Sarking type and condition (sisalation older than 25 years is typically perished).
  • Sagging or deflecting rafters from inside the ceiling space.
  • Active leak history (mark stains on ceilings — these map to roof problem zones).
  • Solar panels (must be removed and reinstalled — $800 to $2,200 separate line).
  • Skylights (replace at strip if 15+ years old — $400 to $1,200 each).
  • Gutter condition (replace at strip if 10+ years old — $35 to $75 per linear metre installed).

Sources: 2026 Master Builders Australia member cost guides; ARC (Australian Roofing Contractors) bulletins; AS 2050; AS 1562.1; AS 4200.1; AS 1170.1; NCC 2025 Volume 2; SafeWork Australia Asbestos Code of Practice (2024); hipages and BlueScope installed-quote medians (Sydney, Melbourne, Brisbane, Perth, Adelaide).

Frequently asked questions

How much does a roof strip cost in Australia in 2026?
Most Australian re-roof projects price the strip line between $16 and $34 per m² in 2026, including labour, a 4 m³ skip bin, batten inspection, and load-out. A typical 180 m² single-storey concrete-tile strip with one layer runs $4,400 to $7,200. Two layers roughly doubles labour and bin weight. Asbestos-cement sheeting (common on pre-1990 roofs) is regulated as Class B asbestos waste in most states and runs 2x to 3x the standard strip rate plus a SafeWork clearance certificate. Source: 2026 Master Builders Australia member pricing, ARC (Australian Roofing Contractors) bulletins, hipages installed-quote medians from Sydney, Melbourne, Brisbane, Perth, and Adelaide.
Is roof strip included in a re-roof quote?
It should be, but always confirm. Master Builders-licensed roofers line-item the strip separately on the quote so you can see what you are paying for stripping versus the new system. Watch for an overlay quote (new Colorbond installed over existing tiles or sheet) priced 25 to 35 percent below a strip — overlays hide batten and sarking rot, double the roof load on rafters (often non-compliant with AS 1170.1 dead-load assumptions), and void most BlueScope and Lysaght warranties. Strip is almost always the correct call.
How many skip bins do I need for a roof strip?
A single layer of concrete tiles weighs about 46 kg/m². A 4 m³ skip bin holds approximately 2,500 kg of tile rubble (typically the weight limit before the volume limit). So a 180 m² single-layer tile strip generates around 8,280 kg of debris and needs three to four 4 m³ bins, or one 9 m³ hook bin. Terracotta tiles are slightly heavier than concrete; profiled metal (Colorbond, Zincalume) is far lighter at 7 kg/m² but takes more volume per kg. Always book the bin sized for the heaviest plausible debris load — overload fees run $80 to $160 per tonne.
Do I need a council permit to strip a roof in Australia?
Strip itself usually does not need council approval if it is part of a like-for-like re-roof on a non-heritage property — most councils treat re-roofing as exempt development under State Environmental Planning Policy (SEPP). However: (1) a skip bin on the public road or nature strip needs a council bin permit ($75 to $250 for one week), (2) any roof containing asbestos requires SafeWork notification and a licensed asbestos remover (mandatory in NSW, VIC, QLD), (3) heritage-listed properties need a Development Application, (4) any change of material (tile to Colorbond) on a strata property needs body-corporate approval. Always check with the local council before stripping.
What is the difference between a strip and an overlay re-roof in Australia?
A strip removes the existing covering down to the rafters or sarking, inspects and replaces battens and sarking, and installs a new system. An overlay installs new Colorbond directly over existing tiles using a low-pitch conversion frame — common in 1990s and 2000s re-roof flips but increasingly out of favour. Strip is correct for any roof with: rotten battens, perished sarking, broken or slipped tiles in more than 15 percent of area, sagging ridges, or any leak history. Overlay is only ever appropriate where: deck is documented sound, sarking is intact, the conversion-frame engineer has signed off on the dead-load increase, and the customer accepts the appearance of a high-pitched-over-tile profile.
How long does a roof strip take in Australia?
A 2-person crew typically strips and loads 80 to 130 m² of concrete tile per day. A typical 180 m² single-storey strip and re-roof takes 4 to 7 working days end-to-end: edge protection and scaffold day 1, strip days 2 to 3, sarking and battens day 3 to 4, new covering days 4 to 7. Slate or terracotta adds 1 to 2 days for careful hand-stripping. Schedule the bin for the morning of strip, and have a temporary tarp dry-in ready for any rain — Sydney and Brisbane summer storms can soak the ceilings of an exposed roof in 30 minutes.
What if there is asbestos in the old roof?
Stop and call a licensed asbestos remover. Pre-1990 Australian roofs frequently contain asbestos cement sheeting (Super Six, fibro), bonded asbestos in ridge caps, or asbestos-felt under-tile sarking. Stripping these without a Class B licence is illegal in every state and territory and carries fines from $11,000 to $150,000 plus prosecution. The standard process: SafeWork notification (5 working days), licensed removalist with negative-pressure enclosure, wet stripping, double-bagged disposal at a licensed asbestos cell, and a clearance certificate before the new roof goes on. Budget $40 to $90 per m² extra for licensed asbestos strip — significantly more than the standard tile or sheet rate.
Can I strip my own roof to save money?
No, except for very small detached structures (garages, sheds under 10 m²). The savings on a typical 180 m² home are $600 to $1,400 versus the licensed roofer's labour line — but you take on serious risks: (1) WorkSafe fines if a stripped roof is left without proper edge protection (single-storey threshold is now 2 m in most states), (2) asbestos liability if pre-1990 (most homeowner insurance excludes self-performed asbestos work), (3) sub-24-hour weather window — once the roof is stripped, you must dry-in the same day or face significant interior damage. Use the savings instead to upgrade the new sarking, battens, or insulation.

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