Closed tender

WP3380- Hard Landscaping (lot 1), Soft Landscaping (lot 2), & Kerb modifications (lot 3) and edge protection - CTA Main Works

Details

Value
£750,000
Topic
Safety fencing
Published
31 October 2025
Submission
1 June 2026

Tender description

Soft Landscaping There is a requirement for a subcontractor who can support us with our soft landscaping requirements. Removal of existing undergrowth on embankment side and replanting with hedera hibernica (circa 1150m2). Works include working on steep incline (typically 1:1.6) using fixed line system or similar. Works are immediately adjacent/above services including high pressure fixed fire supression systems and immediately adjacent to live highway traffic and footpaths. Supplier will be responsible for fertiliser, weed suppression mat, irrigation system (inc design) and planting of new vegetation. Please find our GA for soft landscaping Hard Landscaping There is a requirement for some hard landscaping which will include the lay of permeable black tarmac surface for evacuation area, circa 370m2. There is also "road kerb & furniture modification" and a fair amount of edge protection and security fencing. There is a also a road kerb & furniture modification" requirement as well as edge protection which may form part of this package. The scope is still under development

Timeline

  1. Completed: Tender published31 October 2025
    Current notice
  2. Completed: Submission date1 June 2026

About the buyer

Costain Limited buys subcontract packages for its Heathrow H7 renewals work, from its base in Maidenhead. Subcontractors go through Costain Supplier Onboarding and due diligence checks before any award. Bids are scored on a Value Scorecard that covers technical capability, health and safety, quality and price. Some airside packages ask bidders to hold a Heathrow Airside Operations Licence. Packages cover the Central Terminal Area tunnel, with design, survey and construction work all tendered separately.

Over the past 5 years, most of Costain Limited's contract awards have been in construction work and architectural and engineering services.

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