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Published date: 13 February 2025

Contract summary

Industry

Cast-iron products - 44470000

Roof works and other special trade construction works - 45260000

Location of contract

SW1A 0AA

Value of contract

£21,000,000 to £31,000,000

Procurement reference

CF-0005900DWS000000R8r72AC

Published date

13 February 2025

Closing date

20 March 2025

Closing time

5pm

Contract start date

9 October 2026

Contract end date

17 May 2030

Contract type

Works

Procedure type

Competitive dialogue (above threshold)

Contract is suitable for SMEs?

No

Contract is suitable for VCSEs?

No

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Description

The Corporate Officer of the House of Commons and the Corporate Officer of the House of Lords, acting jointly, invite requests to participate from suitable organisations who wish to tender for a contract for the Repairs to House of Lords Chamber Roof - main works. The scope includes the removal, refurbishment or replacement, and re-installation of cast iron roof components, and in-situ repairs to the supporting structure to the cast iron roof over the House of Lords (HoL) Chamber and adjacent rooms. This will be a Traditional Design (by the existing appointed consultant team) with the successful Contractor taking on design responsibility for the temporary works, scaffold, logistics and mechanical and electrical work. The HoL Chamber roof is the largest single cast iron roof at the Palace of Westminster. In plan the roof is over one thousand square metres, made up of over 5,000 individual external cast iron components. A single cast iron tile can weigh 75kg. A comprehensive overhaul of the HoL Chamber cast iron roof was carried out in 1996 and it was therefore not included in the more recent programme of cast iron roof works. Remedial works were carried out on the roof in 2015 and a survey was undertaken in 2021 which highlighted that the roof was continuing to deteriorate. Whilst temporary measures are in place, the roof now requires complete refurbishment. This project will ensure that the cast iron roof is repaired, mitigating health and safety risks and preventing irreversible heritage damage, and ensure both Houses fulfil their duty of care obligations as custodians of the Grade 1 listed building and part of a UNESCO World Heritage Site.
The procurement is following a Competitive Dialogue procedure to enable dialogue on key topics where Contractor input would be beneficial such as scaffold, temporary works, logistics and programme, as well as approach to meeting the cast iron repair works specification. The overall programme for this contract is anticipated to be approximately 3.5 years, and dates are indicative, however these will be tested and confirmed during the dialogue process, taking into account feedback on the implications of, and approach to constraints that will apply. Additional documentation will be available following security clearances for the dialogue stage.
Estimated contract value range includes Option X1 inflation to the end of the contract, but excludes VAT and risk/compensation events (NEC4 ECC Option B).
The requirements are set out within the procurement documents which are downloadable free of charge from Atamis: https://atamis-ukparliament.my.site.com/s/Welcome
If your organisation is not already registered on the UK Parliament Atamis portal, please use the URL above and click on the 'Register here' button, registration is free. Guidance on how to register is available via a link beneath the registration button. Once logged in, click on 'Find opportunities' and follow the on-screen instructions.

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How to apply

Follow the instructions given in the description or the more information section.

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About the buyer

Contact name

Parliamentary Commercial Directorate

Address

Parliament Square
London
SW1A 0AA
GB

Telephone

02072191600

Email

pcd@parliament.uk

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