Main tunnel cladding & renewal works.

Amounts and figures

Description

• WP1: Remove the existing stainless steel top hat channels. • WP2: Test existing sub-frame anchors. • WP3: Survey the existing sub-frame vs. the accepted design and report on work required to remediate. • WP4: Seal side bore duct covers. • WP5: Remediate the existing sub-frame to the accepted design; supply and installation of the cladding top hats; supply and installation of the cladding boards. WP1 to WP4 can be done as early works. WP5 is the main cladding procurement and installation. Programme information recorded herein is relative to WP5 only.

Official publications

• WP3340- Road Marking
  Published: 10 December 2025
• WP4730 - Security Fencing CTA Tunnel
  Published: 31 October 2025
• WP3380- Hard Landscaping (lot 1), Soft Landscaping (lot 2), & Kerb modifications (lot 3) and edge protection - CTA Main Works
  Published: 31 October 2025
• WP4730 - Security Fencing CTA Tunnel
  Published: 31 October 2025
• WP3380- Hard Landscaping (lot 1), Soft Landscaping (lot 2), & Kerb modifications (lot 3) and edge protection - CTA Main Works
  Published: 31 October 2025
• WP3380- Hard Landscaping (lot 1), Soft Landscaping (lot 2), & Kerb modifications (lot 3) and edge protection - CTA Main Works
  Published: 31 October 2025
• WP3350-Sacrificial Anode Concrete Repairs
  Published: 21 October 2025
• WP3370-Drainage Works - CTA Main Works
  Published: 21 October 2025
• WP3360-Bollards Installation Works - CTA Main Works
  Published: 21 October 2025
• WP6102 - Water Treatment for Cooling Towers - intrusive survey & design (All Terminals)
  Published: 16 October 2025

Previous and next from Costain Limited (H7-Heathrow)

• WP6102 - Water Treatment for Cooling Towers - intrusive survey & design (All Terminals) — 16 October 2025
• WP6101 - Water Treatment for LTHW and CHW Closed Loop Systems - Intrusive surveys (Terminal 2) — 16 October 2025
• WP6931 - MEP - T2 Space Optimization - Landside — 15 October 2025
• WP4981 - Architectural & Fitout - T2 Space Optimisation - Landside — 15 October 2025
• WP4990 CTA Rail Fire Compartmentation - STAGE 1 — 25 March 2024
• Main tunnel cladding. — 22 March 2024

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Frequently asked questions

What is the deadline to bid for this tender?

The submission deadline is 9 February 2024, 12:00. Check the official source, as dates can be modified.

What is the estimated value of this tender?

The estimated value published by the buyer is £20,000,000.

Who is the buyer of this tender?

The contracting authority is Costain Limited (H7-Heathrow) (United Kingdom).

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