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metre Tunnelling

Railway Worker
Welding Sparks in the Tunnel Construction

Metre Tunnelling – Underground & Cavern Estimating Expertise

Cost Certainty, Below Ground

Metre Tunnelling provides specialist estimating and quantity surveying support for complex underground works — from NATM and TBM drives to drill & blast caverns, shafts, and cross passages.

Our experience spans civil tunnelling, SCL works, cable tunnels, and hydro projects, where risk, logistics, and ground conditions define the commercial profile.

With us, you gain access to deep sector knowledge, accurate cost modelling, and proactive support throughout design, tendering, and delivery.

Our Tunnelling Expertise Covers:

  • SCL, NATM & Drill & Blast Tunnels
    Primary/secondary linings, sprayed concrete, rock bolting, lattice girders, and advance/support cycles.

  • TBM Drives & Segmental Linings
    EPB, slurry shield, and hard rock TBM tunnels — including mucking out systems, precast segments, and grouting.

  • Shafts & Caverns
    Caisson, diaphragm wall, and NATM/DB shafts; cable tunnels and ventilation caverns.

  • Cross Passages & Connections
    Pipe jacking, breakouts, waterproofing, and logistics planning.

  • MEP & Tunnel Fitout
    Fireproofing, cabling, ventilation, emergency egress, and drainage systems.

  • Geotechnical & Groundworks
    Probe drilling, compensation grouting, face mapping, pre-consolidation injections, and geotechnical risk allowances.

What We Deliver

  • Concept, Feasibility & Design-Stage Cost Plans

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  • Detailed BOQs for Shaft & Tunnel Packages

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  • Take-Offs from Geological Profiles & 3D Models

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  • Tender Pricing Assistance & Rate Build-Ups

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  • Risk-Adjusted Cost Modelling

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  • Value Engineering and Scope Breakdown

Project Experience Snapshot

  • Loch Ness Hydro Tunnel 
    Cost planning and programme-aligned pricing for drill & blast tunnel through Old Red Sandstone.
    Integrated cycle timing, support sequencing, and explosive handling costs.

  • Crossrail 

  • Lower Thames Crossing 

  • Thames Tideway 

  • Urban Cable Tunnel – London
    BOQ and pricing support for deep tunnel with TBM drive, segment lining, and remote shaft access.
    Delivered take-off from IFC drawings and geotechnical overlays.

  • Metro Expansion – Cross Passages Package
    Package pricing support for mined connections and emergency egress tunnels.
    ✔ Applied probabilistic costing for face conditions and grouting.

Why Metre Tunnelling?

  • Underground-first thinking: not just civils adapted for tunnels

  • Expertise in sequencing, cycle-based cost models, and production rates

  • Detailed understanding of temporary works and safety-critical systems

  • Ground-condition informed estimating and risk-weighted pricing

  • Skilled in remote, constrained, and specialist access logistics

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