Repair vs Replace Driveway Cost
Driveways almost always fail from the bottom up. Cracks, dips and lifting slabs are symptoms, and whether repair is worth doing depends on whether the base underneath is still doing its job.
Repair or resurface
- Typical cost
- Crack sealing $15 to $30 per lineal metre. Concrete grinding to remove a trip lip $250 to $600. Asphalt pothole patching $150 to $400 each. Hot mix overlay $45 to $75 per m². Concrete resurfacing overlay $55 to $95 per m². Paver relay $50 to $90 per m².
- Expected remaining life
- Crack sealing buys 3 to 7 years. An asphalt overlay buys 8 to 15 years on a sound base. A concrete overlay buys 8 to 12. All of them are capped by the base beneath.
- Disruption and downtime
- Crack sealing and patching is a few hours with the driveway usable the next day. An overlay is one to two days plus 24 to 72 hours before vehicles.
- Ongoing cost
- Asphalt benefits from resealing every 5 to 8 years at roughly $8 to $15 per m². Concrete benefits from resealing every 3 to 5 years at $10 to $20 per m².
- Warranty
- Typically 12 months on patching, and 2 to 5 years on a professionally applied overlay from an established contractor.
- When it is false economy
- Overlaying a driveway that is stepping, rocking or ponding. The new surface will crack along exactly the same lines within one or two wet seasons because nothing beneath it changed.
Full replacement
- Typical cost
- Plain concrete $110 to $160 per m² including excavation and disposal. Exposed aggregate $140 to $220 per m². Asphalt $85 to $135 per m². Pavers $130 to $250 per m². Add $1,000 to $3,500 for a new crossover, drainage or retaining.
- Expected remaining life
- Concrete 30 to 50 years. Asphalt 15 to 25 with resealing. Pavers 25 to 40 with occasional relevelling. All assume a properly compacted base.
- Disruption and downtime
- Three to seven days including demolition, base preparation, pouring and curing. Vehicles stay off concrete for at least seven days and heavy vehicles for 28.
- Ongoing cost
- Concrete needs sealing every 3 to 5 years to resist oil staining. Asphalt needs resealing every 5 to 8. Pavers need occasional joint sand top up and weed control.
- Warranty
- Structural work above state thresholds carries statutory building warranty, commonly six years. Reputable concreters typically warrant workmanship for 5 to 10 years excluding normal shrinkage cracking at control joints.
- When it is false economy
- Ripping out a fifteen year old concrete driveway because of hairline shrinkage cracks at the control joints, which are exactly what those joints are for.
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Pricing reviewed June 2026. Indicative Australian costs, not a quote.
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Understanding repair vs replace driveway costs in Australia
Surface problem or base problem
Every driveway decision starts here. A surface problem is cracking, discolouration, oxidised asphalt or spalled concrete where the slab still sits flat and does not move. A base problem is stepping between slabs, sunken sections, water ponding, rocking underfoot or a crack that keeps widening. Surface problems respond very well to repair and resurfacing at $45 to $95 per square metre. Base problems do not respond to surface work at all, because the movement causing the damage continues underneath and the new surface fails along the same lines. Walk the driveway after rain, look for ponding, and drive a car over it while someone watches for movement. That five minute test is worth more than any quote.
The age threshold by material
Concrete driveways in Australia typically last 30 to 50 years when poured at 100 millimetres or more over a compacted base with mesh correctly positioned. Asphalt gives 15 to 25 years with resealing every five to eight, and less in hot inland climates where UV oxidises the binder faster. Pavers last 25 to 40 years, and their advantage is that the pavers themselves rarely fail, only the bedding beneath. Gravel is a maintenance regime rather than a fixed life, needing topping up every three to five years. Against those numbers, a fifteen year old concrete driveway with cracking is almost always a repair, while a forty year old one is a replacement.
The repair cost rule of thumb
Price the full replacement for your area first. A fifty square metre double driveway in plain concrete is roughly $5,500 to $8,000 replaced, so the halfway line sits around $3,500. A resurfacing overlay at $55 to $95 per square metre lands at $2,750 to $4,750, which straddles the line, so base condition again decides. Crack sealing at a few hundred dollars is worth doing at almost any age. Where repairs blow past the threshold is base rebuilding, because digging out and recompacting a failed section costs nearly as much per square metre as replacing it, and you finish with a visible join and mismatched colour.
Tree roots and why they are a special case
Root damage is the one failure mode that repair genuinely cannot solve on its own, because the cause keeps growing. Roots seek moisture and follow the edge of a slab, then lift it. Grinding the lip or replacing the lifted section without dealing with the root simply resets the clock, usually for two to five years. The complication is that many Australian councils protect street trees and significant trees on private property, so cutting roots above a certain diameter can require approval and unauthorised work can carry substantial fines. Before quoting a driveway with root damage, contact the council, and consider a root barrier installed at the same time as any replacement.
Drainage is the hidden variable
Most premature driveway failure in Australia is a water story. A downpipe discharging onto the slab washes fines out of the base at the edge. A driveway falling toward the house saturates the subgrade and the house footings at once. A driveway cut into a slope without an ag line becomes a dam. Reactive clay soils, which are widespread across Adelaide, Melbourne and parts of Sydney and Brisbane, swell and shrink with moisture and will heave any slab sitting on unmanaged water. Fixing the drainage is often cheaper than the driveway repair it prevents, and it is the single best value item to add while machinery is already on site.
Council crossovers and approvals
The section of driveway between the property boundary and the road is the crossover, and it belongs to the council, not to you. In most Australian councils, altering or replacing a crossover requires an application, an approved profile, and sometimes a bond, and the work must be done by a contractor on the council's approved list. Costs commonly run $1,500 to $4,000 for a standard residential crossover. This catches people out on full replacements, because the quote covers the private section and the crossover is discovered later. Ask every replacement quote whether the crossover is included and whether council approval has been allowed for.
When a repair only defers the same spend
The telltale is a repair that reopens. If a crack has been sealed and it has reappeared in the same place, or a patch has sunk again, the base is moving and no amount of surface work will stop it. The same applies to an asphalt driveway that has been overlaid once already and is potholing again within three years, which means the failure is in the base course rather than the wearing course. Two failed repairs on the same section is the point to stop and price a proper dig out with base rebuilding, because the third patch will cost more than the share of a replacement it represents.
Frequently asked questions
Is it worth repairing a 25 year old concrete driveway?
Often yes. Concrete commonly lasts 30 to 50 years, so a 25 year old slab that is still flat, not stepping and not ponding has real life left, and crack sealing plus a resurfacing overlay at $55 to $95 per square metre is good value. If it is stepping between slabs or holding water, the base has gone and replacement at $110 to $160 per square metre is the honest answer.
What warranty should a new driveway come with?
Reputable concreters typically warrant workmanship for 5 to 10 years, excluding shrinkage cracking at control joints, which is normal and expected. Structural work above state thresholds also attracts statutory building warranty, commonly six years. Resurfacing overlays usually carry 2 to 5 years. Ask specifically what is excluded, because crack exclusions vary widely between contractors.
Can cracks in a concrete driveway be repaired properly?
Hairline and narrow cracks, yes. A polyurethane or epoxy sealant applied to a routed and cleaned crack costs roughly $15 to $30 per lineal metre and keeps water out of the base, which is the point. Cracks wider than about five millimetres with height difference across them are structural, indicate base movement, and sealing them is cosmetic only.
How much does it cost to replace a double driveway in Australia?
A standard 25 to 50 square metre double driveway in plain concrete typically runs $4,500 to $8,000 including excavation, base preparation, disposal and pouring. Exposed aggregate lifts that to $6,000 to $11,000. Asphalt is cheaper at $3,500 to $6,500. Add $1,500 to $4,000 if the council crossover also needs replacing.
Why does my driveway keep cracking in the same place?
Almost always because the base beneath that point is moving. Common causes are inadequate compaction during construction, water washing fines out from a downpipe or poor fall, tree roots, or reactive clay soil swelling and shrinking with seasonal moisture. Repairing the surface again without addressing the base will produce the same crack in the same place within a year or two.
Do I need council approval to replace my driveway?
For the section within your property boundary, usually no, though some councils regulate the proportion of a front yard that can be paved for stormwater reasons. For the crossover between the boundary and the road, yes. That is council land, requires an application and an approved profile, and often must be done by a contractor from the council's approved list.
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