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Subcontractors and Specialist Contractors for Building Services - UPVC Windows and Doors

West Dunbartonshire Council

This public procurement record has 1 release in its history.

Tender

27 Oct 2026 at 00:00

OJEU - F2 - Contract Notice
Summary of the contracting process

West Dunbartonshire Council is seeking specialist contractors to supply and install new and replacement uPVC windows and doors, including glazing, seals, locks and ventilation features, in council-owned buildings. The work covers residential properties, public facilities and operational sites across West Dunbartonshire. Associated building work includes maintenance, routine servicing and emergency repairs, including work in void properties. Contractors may be individual multi-trade businesses or trade groups, and will join a ranked framework for call-offs. When a higher-ranked contractor cannot take on a job because of capacity or capability, it will be offered to the next provider. Contractors must work as part of a team and complete work orders with minimal supervision. This is a retender of the uPVC windows and doors element of the council’s building-services framework.

The council invited tenders through an open procedure for a single uPVC windows and doors lot within a framework agreement. The tender deadline and bid opening were set for 1 December 2026 at 12 noon. The contract period is 720 days, with two possible 12-month extensions at the council’s discretion. Award is based on 60% price and 40% quality. Bids are submitted electronically in English, and variants are not permitted. Economic checks include annual turnover of at least £2 million in each of the last two financial years, specified employer’s and public liability insurance, and passing at least two of three financial ratios. The technical assessment covers relevant experience, workforce and management levels, equipment, qualifications and certifications, trade registration where required, and intended subcontracting.

This opportunity suits uPVC window and door installers and specialist building contractors able to supply, fit and replace units across varied council properties, and provide planned servicing and urgent repairs. Suppliers need the capacity to respond to a year-round, 24-hour emergency service and to take on call-off work when required; a ranked framework means workload depends on availability and capability. Bidders should be able to evidence relevant completed work, sufficient annual manpower and management staff, and access to the necessary tools, plant and technical equipment. All contractors, subcontractors and site tradespeople must hold qualifications and certifications relevant to the work, with professional or trade-register enrolment where applicable. The council also requires a waste management plan, insurance evidence and, where required, Security Industry Authority approved-contractor status. Social-benefit outcomes must be offered.

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Notice Information

Notice Title

Subcontractors and Specialist Contractors for Building Services - UPVC Windows and Doors

Notice Description

The provision is to give West Dunbartonshire Council a route to identify qualified multi-trade contractors and trade groups to deliver maintenance, routine servicing and emergency repairs to West Dunbartonshire Council buildings, including works to void properties in a multi-trade environment and a 24 hour 356 days emergency response service to be carried out in compliance with the contract conditions. Contractors will be required to provide details on how their organisation in terms of skill, qualifications and competence that fit and meet with the specification the skills. They will need to demonstrate they have a Waste Management plan, Contractors will also be required to provide evidence of insurance policies, where required to provide evidence of security Industry Authority Approved Contractor's Scheme (SIA). The framework will operate on a ranked basis. If the top-ranked Measured Term Contractor is unable to undertake a call-off due to capacity or capability, the opportunity will be offered to the next-ranked provider. This process will continue down the list until a contractor can provide the service. The successful contractors shall be expected to form part of a team, be adaptable, conscientious and be able to carry out instruction with the minimum supervision to allow efficient completion of the work order. Please note that this is a re-tender of Lot 8 - UPVC Windows and Doors only for Subcontractors and Specialist Contracts for Building Services Framework Agreement

Lot Information

Lot 1

The scope of works and services will include but not limited to, the contractor shall provide the supply, installation of new UPVC units with appropriate glazing, seals, locking systems, and ventilation features, replacement units, and associated works for UPVC windows and doors across council owned and operated buildings, including residential properties, public facilities, and operational sites. Contractors must provide evidence in Section 4C of the SPD of any legal accreditations and qualifications required to carry out the scopes of work and services in order to pass qualification criteria. Failure to do so will result in exclusion from the tender Please note that this is a re-tender of Lot 8 - UPVC Windows and Doors only for Subcontractors and Specialist Contracts for Building Services Framework Agreement

Renewal: The contract will be open to 2 x 12 month extensions at the councils discretion

Notice Details

Publication & Lifecycle

Open Contracting ID
ocds-r6ebe6-0000846382
Publication Source
Public Contracts Scotland
Latest Notice
https://www.publiccontractsscotland.gov.uk/search/show/search_view.aspx?ID=OCT567467
Current Stage
Tender
All Stages
Tender

Procurement Classification

Notice Type
OJEU - F2 - Contract Notice
Procurement Type
Framework
Procurement Category
Services
Procurement Method
Open
Procurement Method Details
Open procedure
Tender Suitability
Not specified
Awardee Scale
Not specified

Common Procurement Vocabulary (CPV)

CPV Divisions

44 - Construction structures and materials; auxiliary products to construction (except electric apparatus)

45 - Construction work

50 - Repair and maintenance services

CPV Codes

44221000 - Windows, doors and related items

45421100 - Installation of doors and windows and related components

45421110 - Installation of door and window frames

50000000 - Repair and maintenance services

Notice Value(s)

Tender Value
Not specified
Lots Value
Not specified
Awards Value
Not specified
Contracts Value
Not specified

Notice Dates

Publication Date
27 Oct 20261 weeks ago
Submission Deadline
1 Dec 20264 weeks to go
Future Notice Date
Not specified
Award Date
Not specified
Contract Period
Not specified - Not specified
Recurrence
Not specified

Notice Status

Tender Status
Active
Lots Status
Active
Awards Status
Not Specified
Contracts Status
Not Specified

Buyer & Supplier

Contracting Authority (Buyer)

Main Buyer
West Dunbartonshire Council
Contact Name
Available with D3 Tenders Premium →
Contact Email
Available with D3 Tenders Premium →
Contact Phone
Available with D3 Tenders Premium →

Buyer Location

Locality
DUMBARTON
Postcode
G82 1QL
Postcode Area
Glasgow
Country
Scotland
Major Region (ITL 1)
TLM Scotland
Basic Region (ITL 2)
TLM3 West Central Scotland
Small Region (ITL 3)
TLM31 East Dunbartonshire and West Dunbartonshire
Delivery Location
TLM81 East Dunbartonshire, West Dunbartonshire, and Helensburgh and Lomond
Local Authority
West Dunbartonshire
Electoral Ward
Dumbarton
Westminster Constituency
West Dunbartonshire

Further Information

Notice Documents

  • https://www.publiccontractsscotland.gov.uk/search/show/search_view.aspx?ID=OCT567467
    Subcontractors and Specialist Contractors for Building Services - UPVC Windows and Doors - The provision is to give West Dunbartonshire Council a route to identify qualified multi-trade contractors and trade groups to deliver maintenance, routine servicing and emergency repairs to West Dunbartonshire Council buildings, including works to void properties in a multi-trade environment and a 24 hour 356 days emergency response service to be carried out in compliance with the contract conditions. Contractors will be required to provide details on how their organisation in terms of skill, qualifications and competence that fit and meet with the specification the skills. They will need to demonstrate they have a Waste Management plan, Contractors will also be required to provide evidence of insurance policies, where required to provide evidence of security Industry Authority Approved Contractor's Scheme (SIA). The framework will operate on a ranked basis. If the top-ranked Measured Term Contractor is unable to undertake a call-off due to capacity or capability, the opportunity will be offered to the next-ranked provider. This process will continue down the list until a contractor can provide the service. The successful contractors shall be expected to form part of a team, be adaptable, conscientious and be able to carry out instruction with the minimum supervision to allow efficient completion of the work order. Please note that this is a re-tender of Lot 8 - UPVC Windows and Doors only for Subcontractors and Specialist Contracts for Building Services Framework Agreement

Open Contracting Data Standard (OCDS)

View full OCDS Record for this contracting process

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The Open Contracting Data Standard (OCDS) is a framework designed to increase transparency and access to public procurement data in the public sector. It is widely used by governments and organisations worldwide to report on procurement processes and contracts.

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