The short answer
Removing an old concrete base in the UK typically costs around £50–£120 per square metre to break out and cart away, so a single garage base of roughly 18–20 m² often lands at £900–£2,400 and a larger driveway or yard more again. The figure depends mainly on the slab's thickness and reinforcement — a thin path comes up easily, while a thick, steel-reinforced base needs a heavier breaker and more time — plus how the rubble is disposed of. Crushing the concrete on site for reuse as hardcore can cut the cost, whereas carting broken concrete away by grab lorry adds £250–£400 per load and tipping. Access, depth and whether any sub-base also has to come out all move the price.
Concrete removal sounds simple but the price hinges on what the slab is made of and how the rubble leaves site. The figures below are typical UK ranges, with the factors that change them.
Typical UK costs
- Per square metre (break + remove)£50–£120
- Single garage base (~18–20 m²)£900–£2,400
- Grab lorry load of rubble£250–£400
- Breaker / digger + operator£300–£600 / day
- Crush on site for reusecan reduce cost
What sets the price
Two slabs of the same size can cost very differently to remove. The main variables are:
- Thickness: a 75–100 mm domestic path is quick; a 150 mm+ garage or workshop base takes far longer to break.
- Reinforcement: steel mesh or rebar holds the slab together, so it must be cut as well as broken, slowing the job.
- Disposal route: crushing on site for reuse is cheaper than carting rubble away to a tip.
- Access: a base a digger and grab lorry can reach is efficient; a rear garden slab reached only by barrow is slower and dearer.
Most quotes combine a breaking cost (machine and operator time, or a per-square-metre rate) with a disposal cost, so it helps to read them as two parts.
The slab's history matters as well. A modern domestic garage base is usually plain or lightly meshed and breaks predictably. An old industrial or agricultural floor can be much thicker, heavily reinforced, and laid on a deep compacted sub-base that also has to come out — turning what looks like a simple slab into a substantial excavation. Where you do not know the construction, it is sensible to treat the thickness and reinforcement as unknowns and keep a contingency, because they are the two factors that most often push the breaking cost beyond a first estimate.
| Job | Typical figure | Notes |
|---|---|---|
| Per m² break + remove | £50–£120 | varies with thickness/rebar |
| Single garage base | £900–£2,400 | ~18–20 m² |
| Driveway / yard | from £1,500+ | scales with area |
| Concrete rubble (grab load) | £250–£400 | or crush on site |
Indicative UK figures for guidance. Sources: Checkatrade demolition and groundworks cost guides.
Breaking it out
For anything bigger than a path, the work is done with an excavator fitted with a hydraulic breaker attachment, which jackhammers the slab into manageable pieces; smaller or awkward areas use a handheld breaker. A reinforced base also needs the steel cut and separated from the concrete, which adds time. The machine then loads the broken material straight into a grab lorry or a crusher.
Day rates for a tracked excavator with operator are around £300–£600, and a thick reinforced base can take a full day or more for the breaking alone on a larger plot. Where the slab sits on a compacted sub-base that also has to come out — for example to dig deeper for a new build-up — that excavation is an additional cost on top of removing the concrete itself.
Disposal: crush or cart away
What happens to the broken concrete is a real cost lever. The traditional route is muck away: load the rubble into a grab lorry at around £250–£400 per 14–16-tonne load and tip it at a licensed facility. Clean, inert concrete attracts the lower rate of Landfill Tax if it goes to landfill, but recycling facilities will often take it for less.
The alternative is to crush the concrete on site with a mobile crusher, turning it into recycled aggregate ("6F2" or similar) that can be reused as sub-base or fill for the new works. This can cut both the muck-away cost and the price of imported aggregate, and it reduces lorry movements — though hiring a crusher only pays off above a certain volume. For a single garage base, carting away is usually simplest; for a large yard or driveway, crushing on site can be the more economical choice. Always use a registered waste carrier and keep the transfer note for any material that leaves site.
Removing the base versus building over it
Before paying to break out a concrete base, it is worth asking whether it has to come out at all. In some cases an existing slab can be retained and reused — for example as the base for a new garden room or shed, or built over where levels and condition allow. Removal is necessary when:
- You need to dig deeper than the slab for new foundations or a lower floor level.
- The slab is cracked, heaved or poorly founded and cannot be trusted to carry new loads.
- It sits where services or drainage must be installed beneath.
- The new structure needs a specific insulated, damp-proofed build-up the old slab does not provide.
Where the base can stay, you save the full breaking and disposal cost, which is often the largest part of the job. A groundworker or engineer can judge whether the existing concrete is sound enough to keep, and that single decision can change the budget substantially. It is a question worth asking before assuming demolition is the only option.
Frequently asked questions
Is it cheaper to crush concrete on site or cart it away?
For small slabs, carting the rubble away by grab lorry is usually simplest and lowest-cost overall. For large volumes — a big driveway or several bases — crushing on site can save money, because the recycled aggregate can be reused as sub-base and you avoid both tipping fees and the cost of importing fresh stone.
Does a reinforced concrete base cost more to remove?
Yes. Steel mesh or rebar holds the slab together, so the steel has to be cut and separated as well as the concrete broken, which takes longer and needs more machine and operator time. A thick, heavily reinforced base can cost noticeably more per square metre than a plain slab.
Can I reuse the broken concrete on my own project?
Often, yes. Clean, crushed concrete makes a good recycled sub-base or fill for driveways, slabs and landscaping, which saves on imported aggregate and disposal. It needs crushing to a usable grade first, and should be free of contamination, but reusing it on site is both economical and lower-waste.
Sources & further reading
- Checkatrade — concrete removal / demolition cost guide
- MyJobQuote — groundworks cost guide
- GOV.UK — Landfill Tax rates
Figures on this page are typical UK ranges drawn from published sources and depend on your specific site. They are guidance, not a quotation.