Repairs, sealing & specialists

Concrete repairs and crack sealing

Most hairline cracks are shrinkage and only cosmetic; wide, growing or stepped cracks, sinking slabs and rusting steel ('concrete cancer') need a proper diagnosis before repair..

63 businesses listedUpdated October 2026
In short

Most hairline cracks are shrinkage and only cosmetic; wide, growing or stepped cracks, sinking slabs and rusting steel ('concrete cancer') need a proper diagnosis before repair.

What concrete repairs & crack sealing involves

  1. Inspect and measure the cracks (width, movement, pattern)
  2. Find the cause – shrinkage, settlement, tree roots, drainage or corroding steel
  3. Seal or inject cracks with flexible sealant or epoxy
  4. For spalling: break out, treat the steel and patch with repair mortar
  5. Seal the surface if needed
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How much concrete repairs & crack sealing costs

Repairs are quoted per job. There's no reliable public price list; resurfacing ($50–$80 per m²) or replacing a section (removal $30–$100 per m² plus new concrete) are the alternatives to compare.

Price ranges in Australia (GST incl.)

Source: whatsthedamage.com.au, Concreting cost Australia 2026 (verified October 2026). Prices include GST. Checked October 2026.

Spray-on resurfacing: typical price per m² by state

NSW$75
VIC$68
QLD$65
WA$68
SA$60
TAS$59
NT$65
ACT$71
National typical price × capital-city price index (October 2026). Click a state to open the calculator.

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Before you hire

  • Photograph cracks with a ruler and date to see whether they grow
  • Ask the contractor to explain the cause, not just fill the crack
  • Get an engineer for structural cracks in slabs, walls or footings
  • Check drainage and trees near the damaged area

Standards and approvals

Structural cracks in house slabs and footings should be assessed by an engineer (AS 2870 classifies slab damage by crack width). Concreting for homes is licensed building work in most states. In NSW a contractor licence from NSW Fair Trading is needed for residential work over $5,000 (labour and materials, incl. GST); in Queensland a QBCC licence is needed for work over $3,300; in Victoria, domestic building work over $10,000 must be done by a registered builder (Building and Plumbing Commission). Check the licence number on the regulator's public register before paying a deposit.

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Who does concrete repairs & crack sealing

63 businesses in the directory list this service; 63 of them mention it on their own website (the quote is on each business page).

New South Wales 16 businesses

All concreters in New South Wales

Victoria 4 businesses
  • Concreter
    Salcrete Concreting Pty LtdCaroline Springs, VIC
    • Concrete driveways
    • Driveway crossovers
    • Concrete paths & footpaths
  • Concreter
    Sunshine ConcretingFootscray, VIC
    • Concrete driveways
    • Commercial slabs
    • Footings, foundations & columns
  • Concreter
    Ymc ConcretingDandenong, VIC
    • Concrete driveways
    • Driveway crossovers
    • Concrete paths & footpaths
  • Polished & epoxy floors
    Bluestone Polish Concrete FloorBeechworth, VIC
    • Concrete driveways
    • Concrete steps & ramps
    • Footings, foundations & columns
Queensland 15 businesses

All concreters in Queensland

Western Australia 10 businesses
  • Concreter
    Bunbury ConcretersBunbury, WA
    • Concrete driveways
    • Concrete paths & footpaths
    • Car parks & loading bays
  • Concreter
    Mandurah ConcretersPort Kennedy, WA
    • Concrete driveways
    • Concrete paths & footpaths
    • Shed & granny flat slabs
  • Concreter
    Master Concrete Repair PerthFremantle, WA
    • Concrete driveways
    • Concrete paths & footpaths
    • Concrete steps & ramps
  • Concreter
    Metro Concrete Pty LtdSpearwood, WA
    • Concrete paths & footpaths
    • Commercial slabs
    • Footings, foundations & columns
  • Concreter
    Kings Concrete ProsMandurah, WA
    • Concrete driveways
    • Concrete paths & footpaths
    • Concrete steps & ramps
  • Concreter
    Warner Brook ConcretingRockingham, WA
    • Concrete driveways
    • Driveway crossovers
    • Concrete paths & footpaths
  • Concreter
    Perth Concrete RepairPalmyra, WA
    • Concrete paths & footpaths
    • Car parks & loading bays
    • Footings, foundations & columns
  • Concreter
    Classic Concrete FremantleAubin Grove, WA
    • Concrete driveways
    • Concrete repairs & crack sealing
  • Decorative & resurfacing
    Exposed Concrete CareBaldivis, WA
    • Concrete driveways
    • Concrete paths & footpaths
    • Commercial slabs
  • Polished & epoxy floors
    Precision Polished ConcreteBibra Lake, WA
    • Concrete driveways
    • Concrete paths & footpaths
    • Commercial slabs
South Australia 9 businesses
Tasmania 3 businesses
  • Concreter
    Hobart Concreting SolutionsHobart, TAS
    • Concrete driveways
    • Concrete paths & footpaths
    • Concrete steps & ramps
  • Concreter
    Supreme Concreting TasmaniaDeloraine, TAS
    • Concrete driveways
    • Concrete paths & footpaths
    • House slabs
  • Polished & epoxy floors
    1300NonslipHobart, TAS
    • Concrete driveways
    • Concrete paths & footpaths
    • Concrete steps & ramps
Australian Capital Territory 6 businesses
  • Concreter
    Ace Concreting CanberraBelconnen, ACT
    • Concrete driveways
    • Concrete paths & footpaths
    • Shed & granny flat slabs
  • Concreter
    Canberra Concreting SolutionsBelconnen, ACT
    • Concrete driveways
    • Concrete paths & footpaths
    • Concrete steps & ramps
  • Concreter
    Top Notch Canberra ConcreteBelconnen, ACT
    • Concrete driveways
    • Concrete paths & footpaths
    • Car parks & loading bays
  • Builder, civil or landscaping
    CM Formwork CanberraFyshwick, ACT
    • Concrete driveways
    • Driveway crossovers
    • Concrete paths & footpaths
  • Builder, civil or landscaping
    Alford YardworksBelconnen, ACT
    • Concrete driveways
    • Concrete paths & footpaths
    • Concrete steps & ramps
  • Builder, civil or landscaping
    Foresti Pty LtdBelconnen, ACT
    • Formwork
    • Tilt panels & precast
    • Concrete repairs & crack sealing
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Common questions

Are cracks in concrete normal?

Fine shrinkage cracks are common and usually harmless. Wide, growing or uneven cracks need investigation.

What is concrete cancer?

Rusting reinforcement that expands and pushes concrete off. It's repaired by exposing and treating the steel and patching.

Can a cracked driveway be fixed?

Hairline cracks can be sealed or covered by resurfacing; broken or sunken sections usually need replacing.

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