One fixed price for the whole job — not the hours

Concrete Base & Slab Fair Price

Typical trade: groundworker. Move the sliders and answer the questions.

Describe the job or snap a photo — AI fills in the sizes

How is concrete supplied?
Steel mesh reinforcement?
Spoil to remove?

Fair fixed price for the whole job

£729

Fair range: £642 – £861

7.5 m² · 0.83 m³ concrete

Realistic time on site

6.1 h

Crew / total hours

2 · 12.3 h

Labour (12.3 h × £40)
£490
Materials
£239

Over £1,076? Ask why in writing.

  • No damp-proof membrane under a garden-room base
  • Charging extra days for curing time (nobody works while it cures)

Insist on

  • One written fixed price for the full scope — no open-ended hours.
  • Deposit of 10–20% at most; balance after you inspect the work.
  • Any extra work agreed and priced in writing before it starts.
  • A typical shed base is dug, shuttered and poured in one day; allow 2–3 days curing before building.

Estimate for an experienced, insured tradesperson. Local prices vary — adjust the hourly rate for your area.

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