Just two firms are left in the running for the concrete core package on the 63-storey 288 m Pinnacle skyscraper project in London.
Main contractor Brookfield has whittled down the contenders for the last remaining package on the £575 million tower that will become the tallest building in the City of London.
Six firms had originally been invited to tender for the package, understood to be worth around £25m.
Lancsville, Reddington, Stephenson, Buildstone, Byrne Bros and PC Harrington were all invited to submit bids for the high-profile job. But Lancsville and Buildstone have both since gone out of business, while Reddington is understood to be out of the running.
Buildstone was understood to have been carrying out concrete work on the Pinnacle substructure, before being told before Christmas that it would not be on the shortlist for the main core package.
Either Stephenson, Byrne Bros or PC Harrington is now expected to be awarded the main concrete contract at the end of this month.
Pinnacle construction director Ian Pratt said: “We are currently in final negotiations with two firms. We are going through final pricings and getting very close to announcing a decision.”
The winner of the concrete package will begin on site in June. Construction of the Pinnacle is split into two phases - work up to the ground floor level, which will take another year, and then building of the superstructure, expected to be completed by 2013.
The last of the demolition work is being carried out by Keltbray at 22 to 24 Bishopsgate on the southern corner of the site.
This includes the completion of stage 2 strutting support, enabling the demolition of basement slab level 2, and the installation of stage 3 strutting support.
In conjunction with these works Keltbray is carrying out pile cap construction, including breaking out and excavation works to the main core pile cap.
J Murphy is relocating the Bishopsgate footway to enable hoarding realignment. Keltbray will continue with pile cap construction, including completion of the 3,000 cu m concrete pour to the main core pile cap.
Work will continue on the basement levels over the rest of the year with the construction of the superstructure expected to be started in 2011.
Brookfield, formerly Multiplex, took control of the project from Mace at the beginning of 2009.
After a study of the project, Brookfield decided the previous steel frame design would be strengthened with the addition of a concrete core.
Brookfield has agreed a guaranteed maximum price for The Pinnacle, believed to be around £575m.
The steel subcontract will be carried out by a joint venture between Dutch contractor Hollandia and Belgian firm Victor Buyck.
Gartner won the cladding, T Clarke the electrics, Schindler the lifts and MJ Lonsdale took the mechanical packages.