Concrete Cost Guide • Grind and Seal, Honed Concrete & Mechanical Polishing

Polished Concrete Cost in Australia

Polished concrete in Australia commonly starts around $50 to $70 per square metre for grind and seal finishes. Honed concrete often sits around $75 to $100 per square metre, while mechanically polished concrete usually starts around $100 per square metre and rises for higher-gloss, labour-intensive or complex floors.

This guide explains how polished concrete pricing works, why slab condition matters, and what to check before comparing quotes.

How much does polished concrete cost in Australia?

Most polished concrete projects are priced by square metre, but the real cost depends on the polishing system, the slab condition, the amount of grinding, the finish level and how easy the site is to work in.

Simple pricing rule: polished concrete is not priced only by floor area. The slab condition, finish system, grinding depth, aggregate exposure, repair work and access can all change the final quote.
Grind and seal

$50–$70 per m²

Usually the lower-cost option. The surface is ground back, then sealed to create the finished look.

Honed concrete

$75–$100 per m²

A refined ground finish often used where a smooth, hard-wearing surface is wanted with the right sealer system.

Mechanical polish

$100–$180+ per m²

Usually costs more because the finish is built through repeated grinding, densifying and polishing stages.

These are broad Australian guide prices. The final quote should be based on your slab, floor size, access, finish system, repairs and project requirements.

Polished concrete cost per m²

Per-square-metre pricing is useful for early budgeting, but it can hide the real difference between a simple grind and seal and a full mechanical polish.

Finish type Typical guide price What the price usually reflects
Grind and seal $50–$70 per m² Grinding, surface preparation and a topical sealer system.
Honed concrete $75–$100 per m² More refined grinding, a smoother surface and a sealer system suited to the space.
Mechanically polished concrete $100–$180+ per m² Multiple grinding and polishing stages, densifying and higher labour input.
Premium aggregate exposure $150+ per m² Deeper grinding, more aggregate exposure, edge detail and tighter finish expectations.
Estimated polished concrete cost = floor area × selected finish rate per m²

For example, a 50 m² honed concrete floor at $85 per m² would be about $4,250 before site-specific extras. That estimate may change if the floor needs glue removal, crack repair, patching, moisture checks, extra edge work or difficult access.

For broader pricing across concrete finishes, read our guide to concrete cost per m² in Australia.

Grind and seal vs mechanically polished concrete cost

These systems are often grouped together, but they are not the same. The price difference comes from the process, the finish system and the amount of labour needed.

System Usually cheaper? How the finish is created Best suited to
Grind and seal Yes The surface is ground, then a sealer creates much of the finished look. Homes, garages, showrooms and budget-conscious projects.
Honed concrete Mid-range The concrete is ground to a smooth finish, then protected with a sealer system. Indoor areas, alfresco spaces, patios and projects needing a refined surface.
Mechanical polish No The concrete surface is refined through multiple grinding and polishing stages. High-use interiors, commercial floors, premium homes and long-term finishes.
Cost comparison tip: a cheaper polished concrete quote may be based on a different system, fewer grinding stages, lighter preparation, a different sealer or a lower finish expectation.

Grind and seal cost

Grind and seal is usually the lower-cost polished concrete option because it uses grinding to prepare the surface, then relies on a sealer to create the finished appearance. It can work well for residential floors, garages, showrooms and budget-conscious projects.

The trade-off is maintenance. A topical sealer can wear over time, especially in higher-traffic areas. The floor may need resealing later, so the cheapest upfront option is not always the lowest long-term cost.

Honed concrete cost

Honed concrete often sits between grind and seal and mechanical polishing. It gives a smooth ground finish and is commonly used where a refined surface is wanted without the same process as a full mechanical polish.

The right sealer, slip resistance and exposure level matter. Outdoor areas, wet areas and high-use spaces should be assessed carefully before choosing this finish.

Mechanically polished concrete cost

Mechanically polished concrete usually costs more because the finish is created through repeated grinding and polishing stages. The process may include densifiers, finer abrasives and more surface refinement.

It is often chosen for commercial floors, premium homes and high-use interiors where long-term durability and a more refined finish are important.

Polished concrete cost comparison by finish

This visual guide shows how price pressure usually increases as the finish needs more grinding, more refinement or more aggregate exposure.

Grind and seal
$50–$70/m²
Honed concrete
$75–$100/m²
Mechanical polish
$100–$180+/m²
Premium aggregate finish
$150+/m²

These ranges are planning guides only. Final pricing depends on the slab, selected system, room layout, access, preparation and finish expectations.

What affects polished concrete pricing?

The cheapest polished concrete jobs are usually not cheap because polishing is simple. They are cheap because the slab is suitable. The more preparation, repair work or finish control the floor needs, the more the price can rise.

Slab condition

Existing defects add preparation

Cracking, patching, paint, glue, moisture, soft concrete and uneven levels can all add grinding or repair time.

Finish system

Different systems use different labour

Grind and seal, honed concrete and mechanical polishing use different processes, materials and machinery time.

Aggregate exposure

Deeper grinding usually costs more

Cream finish, salt-and-pepper exposure and full aggregate exposure require different grinding depths.

Gloss level

Higher gloss needs more refinement

A higher-gloss finish often needs more polishing stages and more careful surface control.

Room size

Small rooms can have higher m² rates

Setup, edging, travel and detail work still apply, even when the floor area is small.

Access

Difficult access adds labour

Stairs, apartments, tight parking, small rooms or restricted work hours can make the job slower.

Repairs

Cracks and patching change the quote

Crack treatment, patching and floor levelling may be needed before the floor can be polished.

Old coverings

Removal can be a major cost

Tile adhesive, carpet glue, paint, epoxy and old coatings may need removal before polishing starts.

Moisture

Moisture affects suitability

Moisture problems can affect sealer choice, finish durability and whether the slab is suitable.

New slab vs existing slab: why the price changes

Polished concrete is usually more predictable when the slab is planned for polishing before it is poured. The concrete mix, placement, curing, joint layout and finishing method can all be considered early.

Existing slabs can still polish well, but the contractor has to work with what is already there. Cracks, patching, aggregate distribution, moisture, coating residue and uneven hardness can all affect the final look and cost.

If you are planning a new slab, see our concrete slab services and our concrete slab cost guide.

New slab planned for polishing
  • Better control over concrete placement
  • Better planning for aggregate exposure
  • Joint layout can be considered early
  • Finish expectations can be discussed before the pour
  • Less chance of hidden old coatings or glue
Existing slab being polished
  • May need glue or coating removal
  • Cracks and patching may remain visible
  • Moisture may need assessment
  • Aggregate exposure may be uneven
  • Repairs may need to happen before polishing
Practical takeaway: polished concrete pricing is really slab-condition pricing plus finish-system pricing.

Example polished concrete cost estimates

These examples show how the same floor area can change in price depending on the finish system and slab condition.

Example project Size Finish Rough guide estimate What may change the quote
Small room 20 m² Grind and seal $1,000–$1,400 Small job minimums, edging, furniture, access and surface preparation.
Living area 50 m² Honed concrete $3,750–$5,000 Slab condition, aggregate exposure, sealer choice and room layout.
Large home area 100 m² Mechanical polish $10,000–$18,000+ Gloss level, cracks, patching, grinding depth and edge work.
Retail floor 200 m² Mechanical polish Site-specific Traffic, downtime, access, finish specification and commercial requirements.
Estimate warning: these examples do not replace a site quote. Real pricing may include coating removal, crack repair, glue removal, moisture treatment, edge work, furniture removal, access costs and GST.

Cost by finish level and aggregate exposure

The depth of grinding can affect the finished look and the cost. A deeper grind is not automatically better. It only makes sense when the slab, design goal and budget suit that level of exposure.

Exposure level Cost pressure What it means What to check
Cream finish Lower to moderate A lighter grind that keeps more of the original surface character. The slab finish needs to be suitable because less grinding means less correction.
Salt-and-pepper finish Moderate A light-to-medium exposure that reveals fine aggregate. Consistency matters because shallow exposure can vary across the slab.
Full aggregate exposure Higher A deeper grind that exposes larger stones in the concrete. More grinding, more labour and more risk of uneven exposure need to be allowed for.

Is polished concrete cheaper than tiles, epoxy or timber?

Polished concrete can be cost-effective when the slab is already suitable. It can become expensive if the floor needs repairs, coating removal, heavy grinding or a premium finish.

Tiles, epoxy and timber each have their own cost drivers, so the fair comparison is installed cost, not material cost alone. Preparation, labour, moisture control, repairs and long-term maintenance all matter.

For a deeper flooring comparison, read our guide to polished concrete vs tiles.

Flooring option Can be cheaper when Can cost more when
Polished concrete The slab is suitable and the finish is straightforward. The slab needs repair, deep grinding, coating removal or a premium polish.
Tiles Tile choice is basic and preparation is simple. Waterproofing, levelling, cuts, grout, labour and removal increase.
Epoxy The surface is simple and the coating specification is basic. Heavy prep, decorative systems or commercial-grade coatings are required.
Timber A floating system is straightforward and the subfloor is suitable. Premium timber, moisture control or subfloor correction is needed.

What polished concrete quotes should include

A polished concrete quote is only useful when the inclusions are clear. Two prices may look similar but describe very different work.

Quote inclusions to check

  • Floor area
  • Finish type
  • Aggregate exposure level
  • Gloss level
  • Number of grinding stages
  • Crack and joint treatment
  • Coating or glue removal
  • Edge work
  • Sealer or densifier system
  • Moisture considerations
  • Access requirements
  • GST and exclusions

Warning signs in a quote

  • No finish system named
  • No mention of slab condition
  • No clarity on grind depth
  • No detail about repairs
  • Very low price with vague inclusions
  • No explanation of sealer maintenance
  • No discussion of moisture or cracking
  • No realistic note about natural variation
Quote comparison tip: ask each contractor what system they are pricing, what preparation is included and how cracks, joints, edges and existing coatings will be handled.

For more detail, read our guide to how concrete quotes are prepared.

Why slab preparation affects polished concrete cost

Polished concrete is only as good as the slab being worked on. If the concrete is soft, uneven, cracked, damp, patched or covered in old adhesive, the floor may need extra preparation before polishing can start.

Surface preparation is part of the cost, not an optional extra. Skipping preparation can lead to poor adhesion, visible defects, uneven exposure, sealer failure or a finish that does not match expectations.

Preparation verdict: a good polished concrete result starts before the final polish. Slab condition, grinding quality, repair work and sealer choice all affect the finished floor.

See our concrete preparation standards, concrete work methodology and concrete repairs service for more detail.

Does location affect polished concrete cost?

Location can affect polished concrete pricing through labour rates, travel, trade availability, building access, apartment restrictions, parking, slab age, humidity and drying conditions.

Sydney

Dense suburbs, apartments, older slabs, tight access and parking limits can affect polishing costs. View our polished concrete Sydney page.

Melbourne

Renovation slabs, moisture, coatings and access can change preparation requirements. View our polished concrete Melbourne page.

Brisbane

Humidity, slab moisture, outdoor areas and timing can affect sealer choice and finish planning. View our polished concrete Brisbane page.

Perth

Large homes, garages and outdoor areas may change finish choice, access and preparation. View our polished concrete Perth page.

Adelaide

Heat, dry conditions and renovation slabs can affect grinding, sealing and curing expectations. View our polished concrete Adelaide page.

For broader service coverage, visit the locations hub.

Related concrete cost guides

These guides connect polished concrete pricing to slab condition, flooring comparisons, preparation and broader concrete costs.

Frequently asked questions

How much does polished concrete cost per square metre in Australia?

Polished concrete in Australia commonly costs around $50 to $70 per m² for grind and seal, $75 to $100 per m² for honed concrete and $100 to $180+ per m² for mechanically polished concrete. The final price depends on slab condition, finish level, repairs, access and project size.

Is grind and seal cheaper than mechanically polished concrete?

Yes. Grind and seal is usually cheaper because it uses fewer polishing stages and relies on a sealer for much of the finished look. Mechanically polished concrete usually costs more because the surface is refined through more grinding and polishing stages.

Why does polished concrete cost more on an existing slab?

Existing slabs may need glue removal, coating removal, crack repair, patching, levelling or moisture assessment before polishing. A new slab planned for polishing is usually more predictable.

Is polished concrete cheaper than tiles?

Polished concrete can be cheaper than tiles when the slab is already suitable and the finish is simple. It can cost more if the slab needs repairs, heavy grinding, coating removal or a premium mechanical polish.

What is the cheapest polished concrete finish?

Grind and seal is usually the cheapest polished concrete finish. It can give a polished look at a lower cost, but the sealer may need maintenance or reapplication over time.

Does aggregate exposure affect the cost?

Yes. Full aggregate exposure usually costs more than a cream or salt-and-pepper finish because it needs deeper grinding and more labour.

Can any concrete slab be polished?

No. Many slabs can be polished, but not every slab is suitable. Cracking, moisture, soft concrete, patching, coatings and uneven levels can affect the result.

Is polished concrete good value?

Polished concrete can be good value when the slab is suitable, the finish is chosen correctly and the maintenance expectations are clear. The best value usually comes from matching the polishing system to the space rather than choosing the lowest quote.

Get a polished concrete quote based on your slab

A polished concrete quote should reflect the slab condition, finish system, aggregate exposure, access and preparation required. The lowest square-metre rate is not always the best value if it leaves out repairs, edge work, coating removal or sealer details.

If you are planning polished concrete for a home, garage, showroom or commercial space, our team can help you compare the practical requirements before work begins.