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Balloch Castle Window Replacement Project

West Dunbartonshire Council

This public procurement record has 1 release in its history.

Tender

04 Sep 2026 at 01:00

PCS Notice - Website Contract Notice
Summary of the contracting process

West Dunbartonshire Council is procuring building works to replace the windows at Balloch Castle, a Category A listed building in West Dunbartonshire. The scope includes window refurbishment and replacement, timber rot repairs and structural works to the west elevation. This is a conservation-led construction project, classified as building construction and works. The requirement covers one package of work at the castle rather than separate specialist lots. It will suit contractors able to manage fabric repairs and structural interventions in a listed heritage building, while coordinating the replacement and refurbishment of windows as part of a single project. The council is the contracting authority and will use electronic communication and ordering for the procurement and any resulting contract.

The procurement has reached tender: West Dunbartonshire Council invited offers through an open procedure, with electronic submission required. Bids must be submitted by 2 October 2026 at 12:00, when bids are also scheduled to be opened; evaluation is scheduled to begin at that time. The contract is expected to run for 120 days. Its estimated value is £297,000. The opportunity is one lot and variant bids are not allowed. Award will be based on the tender assessment, with economic and financial standing and technical capability forming minimum selection requirements. Suppliers must provide three detailed examples of similar contracts on Category A listed buildings, supported by written declarations or references. A document fee applies to participation.

This opportunity is suited to established building contractors and heritage specialists with demonstrable experience working on Category A listed buildings. Bidders need to show three comparable completed contracts and provide written declarations or references, so firms with a strong conservation portfolio and suitable client evidence will be well placed. The financial threshold requires annual turnover above £594,000 in each of the previous two years, together with a pass in at least two of three financial ratios: acid test, return on capital employed and current ratio. Required or obtainable before contract start are employers’ liability insurance of £10 million per claim, public and product liability insurance of £10 million per claim, and professional indemnity insurance of £5 million per claim. A parent company guarantee may support an otherwise eligible bidder’s financial submission.

How relevant is this notice?

Notice Information

Notice Title

Balloch Castle Window Replacement Project

Notice Description

West Dunbartonshire Council have a requirement for the replacement of the windows within the Category A listed building of Balloch Castle. These works will consist of window refurbishment and replacement, rot works as well as structural works within the west elevation.

Lot Information

Lot 1

West Dunbartonshire Council have a requirement for the replacement of the windows within the Category A listed building of Balloch Castle. These works will consist of window refurbishment and replacement, rot works as well as structural works within the west elevation.

Notice Details

Publication & Lifecycle

Open Contracting ID
ocds-r6ebe6-0000802366
Publication Source
Public Contracts Scotland
Latest Notice
https://www.publiccontractsscotland.gov.uk/search/show/search_view.aspx?ID=SEP563822
Current Stage
Tender
All Stages
Tender

Procurement Classification

Notice Type
PCS Notice - Website Contract Notice
Procurement Type
Standard
Procurement Category
Works
Procurement Method
Open
Procurement Method Details
Open procedure
Tender Suitability
Not specified
Awardee Scale
Not specified

Common Procurement Vocabulary (CPV)

CPV Divisions

45 - Construction work

CPV Codes

45000000 - Construction work

45210000 - Building construction work

Notice Value(s)

Tender Value
£297,000 £100K-£500K
Lots Value
Not specified
Awards Value
Not specified
Contracts Value
Not specified

Notice Dates

Publication Date
4 Sep 20261 weeks ago
Submission Deadline
2 Oct 20263 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

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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