Scope
Description
Hillingdon Council intends to initiate an Open competition for a new Multi- Lot Window & Door Replacement Programme to on board multiple contractors across three Lot Areas; North, Central and South of Hillingdon Borough, to complete the Window & Door Replacement programme from 2025/26 onward.
The contract will be for 3 years with the option to extend for a further 2, making a maximum of 5 years.
Works will be issued in phased packages within the relevant Lot/Area.
Planned Form of contract: JCT MTC.
All tender documents will be made available via the tender portal: https://supplierlive.proactisp2p.com
Total value (estimated)
- £24,948,000 excluding VAT
- £29,937,600 including VAT
Above the relevant threshold
Contract dates (estimated)
- 1 December 2025 to 30 November 2028
- Possible extension to 30 November 2030
- 5 years
Description of possible extension:
The contract will be for 3 years with the option to extend for a further 2, making a maximum of 5 years, subject to contractor performance and requirements of the Council.
Main procurement category
Works
CPV classifications
- 45421130 - Installation of doors and windows
Contract locations
- UKI74 - Harrow and Hillingdon
Lot constraints
Description of how multiple lots may be awarded:
Contracts will be awarded with regards to the following Lots/Areas within the borough:
Lot 1 - Area North postcodes: UB9, HA6, HA5
Lot 2 - Area Central postcodes: UB10, HA4, UB8
Lot 3 - Area South postcodes: UB7, UB4, UB3
The London Borough of Hillingdon retains the right to award only one, some, all, or none of the available Lots.
The Council retains the right to award multiple Lots to the same tenderer, if highest ranked on more than one Lot, or to only award one Lot per tenderer, regardless of number of Lots they may be ranked highest, depending on what is deemed to be the most advantageous option for the Council.
Lot 1. Lot 1 - North Area
Description
Lot 1 - Area North postcodes: UB9, HA6, HA5
The London Borough of Hillingdon (the Council) invites tenders from suitably qualified and experienced Works Contractors in relation to entering into an agreement to provide window and door installation works within a geographical area.
Lot value (estimated)
- £3,052,000 excluding VAT
- £3,662,400 including VAT
Same for all lots
CPV classifications, contract locations and contract dates are shown in the Scope section, because they are the same for all lots.
Lot 2. Lot 2 - Area Central
Description
Lot 2 - Area Central postcodes: UB10, HA4, UB8
The London Borough of Hillingdon (the Council) invites tenders from suitably qualified and experienced Works Contractors in relation to entering into an agreement to provide window and door installation works within a geographical area.
Lot value (estimated)
- £10,664,000 excluding VAT
- £12,796,800 including VAT
Same for all lots
CPV classifications, contract locations and contract dates are shown in the Scope section, because they are the same for all lots.
Lot 3. Lot 3 - Area South
Description
Lot 3 - Area South postcodes: UB7, UB4, UB3
The London Borough of Hillingdon (the Council) invites tenders from suitably qualified and experienced Works Contractors in relation to entering into an agreement to provide window and door installation works within a geographical area.
Lot value (estimated)
- £11,232,000 excluding VAT
- £13,478,400 including VAT
Same for all lots
CPV classifications, contract locations and contract dates are shown in the Scope section, because they are the same for all lots.
Participation
Particular suitability
Lot 1. Lot 1 - North Area
Lot 2. Lot 2 - Area Central
Lot 3. Lot 3 - Area South
Small and medium-sized enterprises (SME)
Submission
Enquiry deadline
12 August 2025, 5:00pm
Tender submission deadline
19 August 2025, 1:00pm
Submission address and any special instructions
All tender documents will be made available via the tender portal: https://supplierlive.proactisp2p.com
Tenders may be submitted electronically
Yes
Languages that may be used for submission
English
Award decision date (estimated)
7 November 2025
Award criteria
| Name | Description | Type | Weighting |
|---|---|---|---|
| Quality | See tender pack for details |
Quality | 50% |
| Price | Price score per Lot |
Price | 50% |
Other information
Description of risks to contract performance
Increase in work/volumes required during the contract period.
Unsatisfactory performance from any of the awarded contractors.
Urgent works required not known at time of tender.
Change in budgets available for these works.
Conflicts assessment prepared/revised
Yes
Procedure
Procedure type
Open procedure
Contracting authority
London Borough of Hillingdon
- Public Procurement Organisation Number: PHZZ-4724-NYPH
Civic Centre
Uxbridge
UB8 1UW
United Kingdom
Region: UKI74 - Harrow and Hillingdon
Organisation type: Public authority - sub-central government