Windsor Estate External Redecorations and Refurbishment
The Royal Household · Local or regional public body
In brief
The Royal Household awarded construction and building maintenance work to Thomas Sinden Limited, Trident Maintenance Services Ltd and Ian Williams Limited on 27 May 2026.
It is a framework worth up to £5,000,000 including VAT: the most the buyer expects to spend across all suppliers, not one contract.
The contract runs for 4 years, starting 1 April 2026.
It is split into 2 lots, so a supplier can bid for part of the work.
The buyer says it is suitable for small and medium-sized businesses.
Built from the notice's own fields. Always check the official notice before you bid.
What the notice says
For more information about this opportunity, please visit the Delta portal at: https://www.delta-esourcing.com/tenders/UK-London:-Decoration-work./27S668S3SN To respond to this opportunity, please click here: https://www.delta-esourcing.com/respond/27S668S3SN If you experience any technical difficulties from accessing the above url, then please contact the Delta eSourcing Helpdesk on call [phone number removed] or email helpdesk@delta-esourcing.com. Applicants must be technically able to deliver against the contract scope as follows: a.Delivering planned external redecorations to all the previously decorated surfaces within the estate, along with cleaning external elements such as rainwater…Read the full description
Lots
| Lot | Trade | Value |
|---|---|---|
| Windsor Castle and Windsor Royal Mews 1 April 2026 to 1 April 2030 What this lot coversLot A – 2 contractors to be appointed •Windsor Castle (5 phase programme) •Windsor Royal Mews (5 phase programme) | Construction, Building maintenance and repairs | £3,800,000 |
| Home Park and Hampton Court Royal Paddocks 1 April 2026 to 1 April 2030 What this lot coversLot B – 1 contractor to be appointed •Home Park. Predominately residential properties, but includes Frogmore House, various stores, the gardener’s buildings and the conservation workshops. (5 phase programme) •Hampton Court Royal Paddocks. | Construction, Building maintenance and repairs | £1,200,000 |
Who won
| Winner | Lot | Value | Dates |
|---|---|---|---|
| Thomas Sinden Limited (SME) Trident Maintenance Services Ltd (SME) 6 bids received | Windsor Castle and Windsor Royal Mews | £3,800,000 | Awarded 27 May 2026 |
| Ian Williams Limited 3 bids received | Home Park and Hampton Court Royal Paddocks | £1,200,000 | Awarded 27 May 2026 |
Values as the award notice gives them, excluding VAT where stated.
Timeline
- Tender notice · UK4, notice 075375-2025
- Contract award notice · UK6, notice 049965-2026
About the buyer
Procurements
15Awards
10Suppliers it has used most for construction
- Cliveden Conservation Workshop Ltd1 contract
- HCS Water Treatment Ltd1 contract
- Ian Williams Limited1 contract
- Thomas Sinden Limited1 contract
- Trident Maintenance Services Ltd1 contract
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From notice 075375-2025 on Find a Tender, first published 19 November 2025, last updated 27 May 2026. We last checked for changes on 28 September 2026.