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Geotextile - Separation layer – cost per m² – UK 2026 Rate Guide

Budget rate for supply & lay · typical budget rate before your adjustments

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Geotextile - Separation layer
per m² · supply & lay
£2 – £12 / m²
What is it

A permeable geotextile membrane laid between subgrade and granular material to prevent intermixing while allowing drainage.

Rate guide
Standard nonwoven, 100–150g/m², open-area installation£2 – £4/m²
Medium-duty nonwoven, 200–300g/m²£4 – £7/m²
Woven high-strength separation geotextile£4 – £8/m²
Heavy-duty puncture-resistant geotextile, 400–500g/m²£6 – £10/m²
Small, irregular or restricted work areas£7 – £12/m²
Labour output
Large open area, machine-assisted roll placement1,500–3,000 m²/day
Open area, predominantly hand-laid700–1,400 m²/day
Irregular layout with frequent cutting and laps300–700 m²/day
Broken-up or access-restricted locations100–350 m²/day
Key rate adjusters
Fabric specification
Increasing tensile strength, puncture resistance or unit weight can add £1.00–£5.00/m² to the installed rate.
Lap allowance
Standard laps typically add 5–12% to fabric consumption, rising to 15–25% on irregular or heavily penetrated layouts.
Order quantity
Small call-offs and fragmented releases can increase rates by 15–40% compared with continuous bulk installation.
Site access
Restricted delivery, double handling or hand carriage can add £1.00–£3.00/m².
Substrate condition
Trimming, stone picking, dewatering or local soft-spot treatment can add £2.00–£8.00/m² where not separately allowed.
Temporary restraint
Pins, staples, sandbags or additional anchoring in exposed conditions can add £0.50–£2.00/m².
Quantity surveyor insights
  • Waste and buildability: Allow for roll-width optimisation, laps, penetrations and cutting around edges; early coordination with the laying sequence can reduce waste from around 15% to nearer 5–8% on regular areas.
  • Scope gap and procurement: Confirm whether the package includes substrate acceptance, geotextile protection, temporary restraint and repair of damage by following trades; procure against the specified performance criteria and approved equivalents rather than nominal fabric weight alone.

Estimate Anything AI answer · indicative budget rates · updated 31 August 2026

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