Concrete Resurfacing vs Replacement: How to Decide

Resurfacing changes and protects the top of suitable existing concrete. Replacement removes and rebuilds the slab. The best choice depends on what is happening beneath the visible wear—not simply which option has the lower initial price.

Independent service disclosure: Macarthur Concrete Quotes is a quote and enquiry service, not the contractor carrying out the work. Suitability, scope, price and contractual terms are determined directly with the service provider.

Signs resurfacing may be worth assessing

• The slab appears stable and drains reasonably.
• Wear, fading, staining or minor pitting is mainly at the surface.
• Cracks appear limited and are not showing obvious continuing displacement.
• A compatible finish can be applied after proper preparation and repairs.

Warning signs replacement or specialist advice may be needed

• Sections have sunk, lifted or moved relative to each other.
• Cracking is widespread, deep or continuing to open.
• Water or drainage is undermining the slab or surrounding ground.
• Large areas sound hollow, crumble or have severe deterioration.
• The base, thickness or reinforcement may be inadequate for the use.

Compare the whole-life decision

Resurfacing can avoid demolition and disposal when the slab is a sound base. Replacement can be more expensive and disruptive, but it may correct levels, drainage, base failure or structural problems that a coating cannot solve. Ask each provider to explain the condition they observed and why their proposed scope addresses it.

Questions to ask during an inspection

1. What indicates that the slab is—or is not—a suitable resurfacing base?
2. Which cracks or joints can be treated, and which may remain visible or move again?
3. What old coatings, contamination or moisture must be addressed?
4. How will preparation be performed and checked?
5. What is excluded, and what could change after preparation begins?
6. What does the warranty say about slab movement, cracks and coating adhesion?

Avoid a cosmetic-only comparison

Colour samples and patterns matter, but the unseen preparation usually determines whether the finish has a reliable bond. Compare inspection findings, preparation and repair scope before choosing a decorative option.

Next, use our quote comparison checklist or read the full FAQ.