Costain Limited (H7-Heathrow) tenders

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 inclu ....

We have a security fencing requirement as part of our CTA tunnel main works

1100mm high key clamp rail - 30m + 30m
2400mm high green security mesh - 60m +26m
1200mm high green security mesh - 44m
1500mm high saferoad phoenix alum p ....

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).

Wor ....

The scope includes specialist bollard installation in the CTA tunnel at Heathrow. Bollards & Tactile Paving Overview:
Part of the Tunnel Accessibility design package, the bollards and tactile paving are intended to make accessing the cross- ....

Drainage Overview:
Repairs to the existing drainage in the immediate area outside the tunnel portals. Mostly patch repairs with Cured In Place liner. Some elements of robotic cutter required.
Element of regrading required to side bore surfac ....

The scope includes specialist concrete repairs with sacrificial anode protection. Approx 42no. locations across 2no. undercrofts require sacrificial anode protection and permanent half-cell connection installation. Galvashield XP4 (SIKA product).< ....

Public health concerns have been raised as members of the public have breached atrium barriers at various Heathrow locations, and in some instances resulted in suicide. The aim of these works is to introduce anti-suicide and anti-vandalism measure ....

This scope covers intrusive surveys to determine the condition of assets on the Secondary Chilled Water (CHW) and Low temperature hot water (LTHW) systems, specifically the Pressurisation Units (PUs) and Automatic Air Vents (AAVs). Whilst surveyin ....

This scope covers intrusive surveys to determine the required replacement of faulty and end-of-life water treatment and pre-treatment assets for the condenser water circuits which serve the cooling towers. The scope also covers the survey and desi ....

Demolition
The Subcontractor shall strip out and dispose of (unless noted otherwise) the following items, as indicated on the design drawings:
• Partitions
• Doors
• Porcelain tiles
• Ceiling baffles and supports ....