Polished Concrete Floor Cost Per Square Metre UK: Complete Pricing Guide
Understanding the polished concrete floor cost per square metre is essential whether you’re renovating a kitchen, designing a modern office, or creating an industrial‑chic living space. This guide breaks down average UK costs, overlay options, regional labour rates, and practical budgeting advice to help you plan a stunning, durable floor.
Quick Answer
How much does a polished concrete floor cost per square metre in the UK?
Standard mechanical polish (on existing slab): £80 – £150 per m²
Basic grind‑and‑seal finish: £40 – £70 per m²
Polished concrete overlay (micro‑topping): £60 – £100 per m²
High‑gloss decorative finish with aggregates/stains: £150 – £250 per m²
Prices include labour and materials. A new structural slab is additional. All figures are estimated market averages.
Average Polished Concrete Floor Costs Per Square Metre UK
The polished concrete floor cost per square metre varies widely depending on the finish level and the condition of the existing slab. Based on UK contractor quotations and industry benchmarks, most residential projects fall between £80 and £150 per m² for a full mechanical polish. For a basic grind‑and‑seal, you might pay as little as £40 per m², while premium decorative finishes can exceed £200 per m².
The table below summarises typical costs for different types of polished concrete flooring. All figures represent the total installed price including labour, grinding, polishing, and sealing – but exclude any new structural slab.
| Finish Type |
Cost per m² (UK Average) |
Typical Project Size |
Total Estimated Cost |
| Basic grind‑and‑seal |
£40 – £70 |
25 – 60 m² |
£1,000 – £4,200 |
| Standard mechanical polish (cream finish) |
£80 – £120 |
30 – 80 m² |
£2,400 – £9,600 |
| Mid‑range salt‑and‑pepper aggregate exposure |
£100 – £150 |
25 – 70 m² |
£2,500 – £10,500 |
| High‑gloss decorative (stains/dyes, full aggregate) |
£150 – £250 |
20 – 50 m² |
£3,000 – £12,500 |
| Polished concrete overlay |
£60 – £100 |
20 – 60 m² |
£1,200 – £6,000 |
Note: Costs are estimated market averages. Actual quotes will vary based on slab condition, regional labour rates, and specific finish requirements.
Cost Breakdown: Labour, Materials & Finishing
When budgeting for a polished concrete floor, it helps to see where your money goes. The table below breaks down the components of a standard mechanical polish (cream finish) on an existing sound slab for a 40 m² area.
| Cost Component |
Price Range (per m²) |
For 40 m² Project |
Notes |
| Labour (grinding & polishing) |
£45 – £75 |
£1,800 – £3,000 |
Includes machine operation & edging |
| Consumables (diamonds, pads) |
£10 – £20 |
£400 – £800 |
Varies with aggregate hardness |
| Densifier & hardener |
£3 – £6 |
£120 – £240 |
Applied during polishing |
| Sealer / guard |
£5 – £10 |
£200 – £400 |
Penetrating or topical |
| Crack repair & surface prep |
£5 – £15 |
£200 – £600 |
If required; otherwise minimal |
| Stain / dye (optional) |
£10 – £30 |
£400 – £1,200 |
Decorative only |
| Estimated Total (excl. VAT) |
— |
£2,720 – £6,240 |
Equivalent to £68–£156/m² |
VAT Note: Many concrete polishing specialists are VAT‑registered, so 20% VAT may be added to the total. Smaller contractors below the £90,000 threshold may not charge VAT. Always confirm VAT status when comparing quotes.
Regional Pricing Differences Across the UK
Just like other flooring trades, polished concrete floor costs per square metre vary by region. London and the South East command the highest rates, while Northern England, Scotland, and Wales often offer better value.
| Region |
Standard Polish (per m²) |
High‑Gloss Decorative (per m²) |
Price Difference vs UK Avg |
| London |
£100 – £180 |
£180 – £280 |
+15% to +25% |
| South East |
£90 – £160 |
£160 – £260 |
+5% to +15% |
| Midlands |
£75 – £140 |
£140 – £230 |
On average |
| North England |
£65 – £125 |
£120 – £200 |
-10% to -15% |
| Scotland |
£70 – £130 |
£125 – £210 |
-5% to -10% |
| Wales |
£65 – £120 |
£115 – £190 |
-10% to -20% |
| Northern Ireland |
£60 – £110 |
£110 – £180 |
-15% to -20% |
Regional estimates are based on contractor quotation data. Individual job quotes can vary depending on local competition and accessibility.
Polished Concrete Overlay Floor Cost Per Square Metre UK
If your existing floor is too damaged to polish directly, a polished concrete overlay (also called a micro‑topping) can be a cost‑effective alternative. A thin layer of polymer‑modified cement is trowelled onto the old surface, then ground and polished to resemble a full concrete floor. Overlays can be applied over tiles, timber, or uneven concrete.
| Overlay Type |
Cost per m² |
Best For |
| Standard micro‑topping (1‑3 mm) |
£60 – £80 |
Residential living areas, retail |
| Self‑levelling overlay + polish |
£70 – £100 |
Uneven floors, underfloor heating retrofit |
| Decorative overlay with pigments |
£80 – £120 |
Bespoke designs, commercial spaces |
Overlays typically add 3–8 mm to the floor height, so door clearances and skirting boards may need adjustment. Despite being thinner, a professionally installed overlay is extremely durable and visually indistinguishable from a solid polished slab.
Key Factors That Affect Polished Concrete Floor Costs
- Slab condition: Cracks, spalling, or uneven surfaces require additional grinding and repair, increasing labour and material costs. A new, flat slab is cheapest to polish.
- Aggregate exposure level: A light “cream” finish requires fewer grinding passes than full aggregate exposure, which can add £20–£40/m².
- Gloss level: High‑gloss finishes demand finer grits and additional polishing steps, raising costs.
- Decorative elements: Acid stains, dyes, saw‑cut patterns, or embedded aggregates increase both material and labour charges.
- Floor area: Larger projects (over 80 m²) often benefit from a lower per‑metre rate due to economies of scale. Very small areas (under 20 m²) may carry a minimum project charge of £2,000–£3,000.
- Edge detailing: Hand‑held grinders are needed for edges and corners, adding time.
- Moisture barriers: If the slab lacks a damp‑proof membrane, a surface DPM may be required (£8–£15/m² extra).
- Site access: Difficult access for heavy grinding machinery (e.g., upstairs flats) can increase labour costs.
Real Project Cost Examples
Here are three realistic scenarios to illustrate total project costs:
| Project |
Area |
Finish |
Labour & Materials |
Total (excl. VAT) |
| Open‑plan kitchen/diner |
35 m² |
Salt‑and‑pepper polish |
£130 / m² |
£4,550 |
| Retail shop floor |
60 m² |
Standard cream polish + sealer |
£95 / m² |
£5,700 |
| Large basement conversion |
85 m² |
High‑gloss decorative with dye |
£175 / m² |
£14,875 |
Examples assume an existing sound slab with minimal repairs. A new structural slab would add £60–£120/m².
How to Estimate Your Polished Concrete Floor Cost
Simple Estimation Formula
Total Cost = (Area in m² × Polish Rate) + Slab Repairs + Decorative Extras
If a new slab is needed, add £60–£120 per m² for pouring and finishing. Most residential quotes already include basic crack filling.
Worked Example: 45 m² Living Room
- Area: 45 m² on existing sound slab
- Polish rate (mid‑range): £110 per m²
- Minor crack repairs: £300 lump sum
- Estimated Total: (45 × £110) + £300 = £5,250 (excl. VAT)
For a more accurate figure, request on‑site surveys from at least three specialist concrete polishing contractors.
Common Mistakes That Increase Polished Concrete Floor Costs
- Assuming any concrete slab can be polished: Heavily damaged or poorly laid slabs may need extensive patching or complete replacement before polishing.
- Choosing the wrong finish for the space: A high‑gloss floor in a busy hallway can show scratches and require more frequent maintenance.
- Ignoring moisture issues: Polishing a damp slab without a proper DPM leads to sealer failure and blotchy appearance.
- Hiring on price alone: Inexperienced contractors may skip crucial densifier steps, resulting in a dusty, weaker surface.
- Not clarifying what’s included: Some quotes exclude edge detailing, crack repair, or sealer – check the fine print.
- Forgetting about door and skirting adjustments: Grinding removes 2‑3 mm of surface, and overlays add height, so joinery work may be extra.
Hiring a Concrete Polishing Contractor – Checklist
- Obtain at least three itemised written quotations
- Ask to see examples of previous polished concrete projects – ideally a portfolio or site visit
- Confirm the contractor carries public liability insurance
- Check whether VAT is included or added separately
- Clarify exactly what is covered: grinding steps, densifier, sealer, crack repair, edge work, and clean‑up
- Ask about the expected aggregate exposure and gloss level, and whether samples can be provided
- Agree a realistic timeline – a typical 40 m² room takes 2–4 working days
- Confirm who is responsible for moving furniture and protecting adjacent areas
- Discuss maintenance instructions and aftercare sealers
- Request a written warranty for workmanship (usually 1–5 years)
DIY vs Professional Concrete Polishing
Hiring a heavy grinding machine from a tool hire shop is possible, and basic grind‑and‑seal jobs can be done by a competent DIYer. However, achieving a uniform, professional‑grade polished concrete floor cost per square metre finish is extremely challenging.
When DIY Might Be an Option
- Small utility rooms or garages where a perfect finish isn’t critical
- You have experience with concrete work and are willing to invest in multiple diamond grits
- The slab is already flat and crack‑free
When to Definitely Hire a Professional
- For main living areas, kitchens, or commercial spaces where aesthetics matter
- When aggregate exposure or decorative staining is desired
- If the slab has cracks, high spots, or moisture issues
- To ensure a dust‑proof, durable surface that will last decades
Professional polishing equipment is industrial‑grade, and an experienced crew will produce a floor that looks seamless and reflects light beautifully. The labour cost is a worthwhile investment to avoid an expensive re‑do.
Money‑Saving Tips for Your Polished Concrete Floor
- Polish an existing slab: If your home already has a concrete subfloor, polishing it is far cheaper than pouring new concrete.
- Choose a cream or salt‑and‑pepper finish: Full aggregate exposure adds multiple grinding stages and significant cost.
- Combine areas: Polishing multiple rooms in one project can reduce the per‑metre rate.
- Limit decorative extras: Dyes, stencils, and embedded aggregates increase both material and labour costs substantially.
- Prepare the site yourself: Removing furniture, skirting boards, and clearing access can save a day’s labour charge.
- Book during quieter months: Some contractors offer better rates in late autumn or early winter when demand dips.
Sources & Methodology
The pricing estimates in this article are based on a combination of:
- UK contractor quotations from multiple regions
- Supplier pricing for grinding consumables, densifiers, and sealers
- Industry averages published by concrete finishing associations
- Market research including regional labour rate comparisons
- Government guidance on VAT and construction standards where applicable
How We Estimated These Prices
Our estimates consider average labour rates across the UK, material costs from specialist suppliers, regional variations, and project complexity factors. All figures are presented as estimated market averages and should be used for guidance rather than as a fixed quotation. This article is reviewed regularly and updated when meaningful pricing changes occur in the polished concrete flooring sector.
Written by: Bhumi Calculator Editorial Team
Last Updated: 30 June 2026
Disclaimer: This article provides general information and estimated market averages for polished concrete floor costs in the UK. It does not constitute professional advice, legal guidance, or a fixed‑price quotation. Actual costs vary by location, contractor, slab condition, and specific finish requirements. Always obtain written quotations from qualified professionals before commencing any work.
Frequently Asked Questions
What is the average polished concrete floor cost per square metre in the UK?
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The average cost for a polished concrete floor in the UK ranges from £80 to £150 per square metre for a standard mechanical polish on an existing slab. A basic grind‑and‑seal finish starts around £40–£70/m², while high‑end decorative polished concrete with aggregates, stains, or high‑gloss finishes can reach £150–£250/m².
How much does a polished concrete overlay floor cost per square metre UK?
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A polished concrete overlay typically costs between £60 and £100 per square metre in the UK, including surface preparation, the micro‑topping material, and the polishing process. The final price depends on the condition of the subfloor and the desired finish level.
Is polished concrete flooring cheaper than tiles or wood?
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In terms of upfront installation, polished concrete can be comparable to high‑end tiles or engineered wood (£80–£150/m²). However, its extremely low maintenance and 20–30+ year lifespan often make it more cost‑effective over time.
Does the cost of polished concrete flooring include the concrete slab?
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No. The quoted polished concrete floor cost per square metre covers grinding, polishing, and sealing of an existing slab. Pouring a new structural slab costs an additional £60–£120/m².
What factors influence polished concrete floor costs the most?
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Key factors include slab condition, desired aggregate exposure, number of polishing steps, use of decorative stains, and floor area. Larger projects often attract lower per‑metre rates.
How long does it take to polish a concrete floor?
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For an average 40–50 m² room, mechanical polishing usually takes 2–4 working days. A basic grind‑and‑seal can be completed in 1–2 days, while decorative finishes may require 4–5 days.
Can I polish an existing concrete floor myself?
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DIY polishing is possible with hired machines, but achieving a uniform, professional finish is very difficult. For anything other than a small utility room, hiring a specialist concrete polishing contractor is strongly recommended.