By the Handmade Concreting team, Perth concreters with 10+ years of local experience. Last updated June 2026.

Concrete resurfacing is cheaper upfront than replacement, but in Perth it is only the right call when the existing slab is structurally sound. If the slab has cracked, moved, or was laid on a poorly compacted sandy base, resurfacing will fail and you will pay twice. At Handmade Concreting, we assess Perth slabs every week and give homeowners a straight answer on which option actually makes sense for their situation.

We get asked this question constantly: resurface or replace? We are concreters who pour new slabs and decorative finishes every week across Perth, so we have no interest in selling you a resurfacing overlay if a fresh pour is the smarter long-term spend. We give you the straight answer based on what we actually see when we assess your driveway. Here is the full picture so you can make a confident decision.

Why Concrete Resurfacing vs Replacement Matters More in Perth Than Most Cities

Perth's sandy soils cause slab movement far more often than in cities built on clay or rock. Resurfacing only renews the top layer and does nothing for base instability beneath. If your slab has moved, cracked, or was poorly compacted at the time of the original pour, replacement is the right answer regardless of how the surface looks today.

Perth's sandy Spearwood and Bassendean soils make slab movement far more common here than in cities built on clay or rock. When moisture levels shift seasonally, loose or poorly compacted sand shifts too, and the slab above it moves with it. Resurfacing only renews the top layer; it does nothing for what is happening underneath.

Most Perth homes built between the 1980s and early 2000s were laid on minimal base preparation by today's standards. We regularly inspect driveways in suburbs like Padbury, Duncraig, Greenwood, and Kingsley where the original concrete was poured directly onto sand with little compaction and no edge restraint. When we core or break out sections, we often find the base has voided beneath the slab entirely.

In 2026, a significant number of those slabs are hitting the 25-to-40-year mark. Surface deterioration is visible, but the real problem is structural. Applying a 5-10mm polymer overlay on top locks in those problems rather than fixing them. The cracks telegraph back through the overlay within one to three wet seasons, sometimes faster on north-facing driveways that get full Perth sun all day.

The key question is never just how bad does it look. It is: why does it look that way? Surface weathering is a resurfacing candidate. Cracking, lifting, or drainage issues are replacement candidates. Get that diagnosis wrong and you waste money.

When Does Resurfacing Actually Make Sense in Perth?

Resurfacing makes sense when the concrete slab is structurally intact, sits on a stable compacted base, shows no movement or cracking, and the only issue is surface-level deterioration. A sound slab with scaling, light pitting, or colour fade is a genuine candidate. On that foundation, a quality overlay can refresh the look and extend the surface life meaningfully.

The conditions where resurfacing earns its place:

• Surface scaling from UV exposure or old sealer breakdown, with no cracks wider than a hairline
• Colour fading on a slab that passes a tap test (solid thud, not a hollow knock) across its full area
• A patio or path that was poured well, is level, and has no drainage issues
• Concrete that is less than 15 years old, was properly based, and has been maintained

Even then, the long-term performance depends heavily on the overlay product and the preparation. A thin skim coat applied without grinding the surface back or profiling the concrete correctly will delaminate. Good resurfacing is not a quick job done cheaply.

We are honest with homeowners: if resurfacing is the right answer for your slab, we will tell you that. What we will not do is recommend an overlay on a slab that has moved or is sitting on a bad base, because we know how that story ends.

Real Perth Project Scenarios: When We Recommended Replacement

When a slab is cracked, uneven, sinking, or was poured on a poor base, replacement is the better value in Perth. A fresh pour addresses the root cause, allows proper base compaction and reinforcement, and gives you the choice of a modern decorative finish that adds real kerb appeal and property value.

Here are scenarios we have seen firsthand that made replacement the clear call:

Padbury double driveway, 2024. A homeowner had been quoted resurfacing by two other companies. When we assessed it, the slab had a visible step across a diagonal crack and sounded hollow across roughly 40% of its area. The sand beneath had washed out through a failed edge on the left side. We broke it out, re-graded and compacted a 100mm road base, poured a new 100mm slab with SL72 mesh on chairs, and finished it in exposed aggregate. The client got a driveway that will last 30-plus years rather than an overlay that would have cracked again within two seasons.

Greenwood path and patio, 2025. The existing concrete had lifted at three control joints due to tree root intrusion. Resurfacing was never going to fix that. We removed the slab, cut the surface roots, installed root barrier membrane, compacted the base, and poured a new honed concrete patio. The client also saved money on sealing because we sourced the concrete through our supplier Limecrete, which consistently delivers a clean, workable mix suited to honed and decorative finishes.

If replacement is the path forward, a standard 60m² driveway in exposed aggregate runs approximately $8,100 to $8,700, and honed concrete sits around $11,100 to $11,700. Those figures include steel reinforcement, mesh, chairs, and setup. Earthworks and sealing are quoted separately based on your specific site. You can see our full exposed aggregate driveway options to understand what a replacement can look like.

Does Resurfacing Fix the Underlying Problem?

No. Resurfacing does not fix the underlying problem. It renews the surface layer only. If the cause of deterioration is slab movement, a poor base, drainage failure, or root intrusion, those forces will continue acting on the slab regardless of what is applied on top. The overlay will reflect those problems back to the surface, usually within one to three years in Perth conditions.

This is the most important thing to understand in the resurfacing vs replacement debate. Resurfacing is not a structural repair. It is a cosmetic renewal. The two things it cannot fix are the base and the slab itself.

A common failure mode we see in Perth: a homeowner resurfaces a cracked driveway, it looks great for 18 months, then the original cracks reappear through the overlay and new delamination starts at the edges where the overlay was thinnest. Now they are paying to remove both the overlay and the original slab before they can pour new concrete. The final bill is higher than if they had replaced it first.

The questions to ask before committing to resurfacing:

• Are there any cracks wider than a hairline, or cracks that have moved or stepped?
• Does any section of the slab sound hollow when tapped?
• Is there any visible unevenness, lifting, or drainage problem?
• How old is the slab and what was the base preparation at the time?

If the answer to any of the first three is yes, replacement is almost certainly the right call. We will always assess this honestly before quoting either option. If you are also wondering about ongoing sealing and maintenance after any concrete work, our guide on Do You Need to Reseal Concrete in 2026? WA Climate Guide covers what Perth conditions actually demand.

Why Perth Homeowners Choose Handmade Concreting

We have been concreting across Perth for more than 10 years, and we are fully licensed and insured. Our work runs from standard residential driveways through to decorative exposed aggregate and honed concrete finishes. We hold a strong 5-star rating from Perth homeowners who appreciate that we give them a straight answer rather than the one that suits us commercially.

We are concreters, not resurfacing contractors. That means when we assess your slab, we are looking at it from the perspective of someone who pours concrete for a living and understands what failure looks like from the ground up. We use Limecrete as our concrete supplier because their mix quality is consistent, which matters when we are chasing a specific finish on a decorative pour.

When we recommend replacement, it is because the numbers and the slab condition genuinely support it. When resurfacing is the honest answer, we say that too.

Frequently Asked Questions

Is concrete resurfacing cheaper than replacing the concrete?

Yes, resurfacing is cheaper upfront, but only worth the spend if the slab is structurally sound. On a cracked, hollow, or moving slab in Perth, resurfacing fails quickly and you end up paying for both the overlay and a full replacement. A new pour fixes the cause; resurfacing only masks the surface.

How long does a resurfaced concrete driveway last in Perth?

On a genuinely sound slab with proper surface preparation, a quality overlay can last 8 to 12 years. On a slab with movement or poor base compaction, which is common in Perth's sandy Spearwood and Bassendean soils, the original cracks telegraph back through the overlay within one to three wet seasons. Perth's UV intensity also degrades thin overlays faster than in cooler climates.

Can you resurface cracked or lifting concrete?

Not reliably. Cracks and lifting are symptoms of slab movement or base failure, not surface problems. Applying an overlay over moving concrete is a temporary fix at best. The lasting solution is a new pour with proper base compaction, 100mm slab thickness, and SL72 mesh reinforcement to handle Perth's soil conditions.

When is replacing concrete the better value in Perth?

Replacement is better value when the slab is cracked, uneven, hollow-sounding, sinking, or was poured on a poorly compacted sandy base. A fresh pour eliminates the root cause and lets you choose a modern finish like exposed aggregate at $135 to $145 per m² or honed concrete at $185 to $195 per m², both of which add genuine kerb appeal and long-term durability.

Does Handmade Concreting resurface concrete?

Handmade Concreting specialises in pouring new concrete and decorative finishes rather than thin resurfacing overlays. We will assess your existing slab honestly and tell you plainly whether resurfacing or replacement is the smarter long-term spend for your specific situation. We have no commercial reason to push one over the other, and our clients consistently tell us they value that straight answer.

Ready to get an honest assessment of your driveway or concrete slab? Call us on 0407 255 644 or get a free quote online. We cover all of Perth and will tell you exactly what your concrete needs, no pressure, no upsell.