The short answer
Muck away — removing excavated soil and spoil from site — typically costs around £250–£400 per grab-lorry load of roughly 14–16 tonnes, or about £15–£40 per tonne all-in, depending on distance to the tip and the type of material. For smaller volumes, a builders' skip of inert soil and rubble runs around £250–£450. The price covers three things: loading, haulage to a licensed facility, and disposal — including Landfill Tax, charged at a lower rate for inert spoil and a much higher standard rate for mixed or contaminated waste. Clean, dry, inert soil is the lowest-cost to remove; wet clay, mixed rubble or anything contaminated costs more because it is heavier, harder to tip or needs a specialist facility.
Muck away is often the largest line in a groundworks bill because removal and disposal usually cost more than the digging itself. The figures below are typical UK ranges, with the factors that move them.
Typical UK costs
- Grab lorry load (~16t)£250–£400
- Per tonne (all-in)~£15–£40
- Skip (8-yd, inert)£250–£450
- Inert Landfill Taxlower rate
- Standard Landfill Taxmuch higher rate
Skips versus grab lorries
There are two usual ways to remove spoil, and the right one depends on volume and access.
- Skips suit smaller jobs and tight sites. An 8-yard builders' skip of inert soil and rubble is around £250–£450, but skips have weight limits — heavy soil and hardcore can hit the limit well before the skip looks full, so you may pay for several.
- Grab lorries suit larger clearances. One load carries roughly 14–16 tonnes at around £250–£400, and an excavator can load it directly from the dig, avoiding the double-handling that barrowing into a skip involves.
For anything beyond a few tonnes, the grab lorry is usually more economical per tonne and far quicker, which is why most groundworks sites use them once digging is under way.
A third option on bigger jobs is a roll-on roll-off (RoRo) skip of around 20–40 cubic yards, dropped on site and swapped when full. These suit a steady flow of mixed material over several days, but like all skips they have weight limits, and heavy soil or rubble can reach the limit before the container looks full. The practical rule is: small, occasional volumes and tight access favour standard skips; large, direct-loaded volumes favour grab lorries; and a continuous flow over a longer job can favour a RoRo. Most groundworks use a mix as the job moves through clearance, dig and reduction.
| Method | Typical figure | Best for |
|---|---|---|
| 8-yd skip (inert) | £250–£450 | small volumes, tight access |
| Grab lorry load | £250–£400 | larger clearances, direct loading |
| Per tonne (all-in) | £15–£40 | rough planning estimate |
| Contaminated spoil | much higher | specialist facility, by test |
Indicative UK figures for guidance. Sources: Checkatrade muck-away and skip-hire cost guides.
How tonnage and Landfill Tax work
Muck-away pricing is driven by weight and waste type, not just volume. Excavated soil bulks up when dug — loose spoil takes more space and weighs the lorry down — so it pays to estimate on the dug volume, not the neat in-ground figure. Heavier, wetter material means more tonnes and more loads.
Disposal cost then turns on classification. Material sent to landfill attracts Landfill Tax: a lower rate for inert ("inactive") waste such as clean soil, stone and concrete, and a much higher standard rate for mixed and active waste. That single distinction is why segregating clean spoil from general rubbish on site saves money, and why a load of clean soil is far cheaper to tip than a mixed skip.
Ways to keep the cost down
Because muck away is volume-and-weight driven, the biggest savings come from removing less and classifying it correctly. Reuse on site where you can — clean topsoil for landscaping, subsoil for levelling, crushed concrete as sub-base — which cuts both the muck-away volume and the cost of imported fill. Segregate clean soil and hardcore from mixed rubbish so the bulk of your spoil qualifies for the lower inert tip rate. Let it drain if practical, since drier spoil weighs less and fills fewer loads.
Distance to a licensed facility also matters, because you pay for haulage both ways; a contractor with a nearer tip can be cheaper even at a similar headline rate. Where material is or may be contaminated — common on former industrial, garage or fuel-storage land — it needs testing and disposal at a specialist facility, which costs considerably more per tonne. Identifying that early through a site investigation avoids both the surprise and the legal risk of mis-classifying hazardous waste.
How to estimate your muck-away volume
The most common budgeting mistake is to plan on the neat in-ground volume and forget that soil bulks up when dug. A rough method that avoids under-budgeting is:
- Work out the in-ground volume in cubic metres (length × width × depth of the excavation).
- Add a bulking factor of roughly 20–40% for the loose, dug volume — clay and rock bulk more than loose soil.
- Convert to tonnes using an approximate density (soil is broadly in the order of 1.5 tonnes per cubic metre, rubble heavier).
- Divide by about 14–16 tonnes per grab load to get the number of lorry trips.
For example, a modest 20 m³ dig can easily become 25–28 m³ of loose spoil and two or more grab loads once bulked. Your groundworker will refine the figure on site, but planning on the bulked-up tonnage rather than the tidy drawing figure keeps the muck-away budget realistic.
Frequently asked questions
How many grab-lorry loads will my excavation need?
Estimate the loose, dug volume of spoil (remember soil bulks up by roughly 20–40% when excavated), convert to tonnes using its rough density, and divide by about 14–16 tonnes per load. Your groundworker will refine this on site, but planning on the bulked-up figure avoids under-budgeting.
Why is contaminated soil so much more expensive to remove?
Contaminated material cannot go to an ordinary inert tip. It must be tested, classified, and sent to a facility licensed to accept it, often at a much higher per-tonne rate and standard-rate Landfill Tax. The testing and specialist haulage add further cost, which is why suspected contamination should be investigated before digging.
Do I need a licence to remove soil from my own site?
You do not need a licence to dig it, but whoever carts it away should be a registered waste carrier, and the material must go to a permitted facility. You should receive a waste transfer note recording the transfer, which protects you under your duty of care if the waste is later mishandled.
Sources & further reading
- Checkatrade — muck away / spoil removal cost guide
- GOV.UK — Landfill Tax rates
- GOV.UK — waste carriers, brokers and dealers
Figures on this page are typical UK ranges drawn from published sources and depend on your specific site. They are guidance, not a quotation.