Find a TenderAwardedContract award notice
Published 19 Nov 2025, 16:05 GMT

Official UK procurement notice

Windsor Estate External Redecorations and Refurbishment

Official notice

Authority: Buckingham Palace (Public body)

Framework agreement2 lotsWorksBelow threshold - open competitionBelow thresholdSME suitable
Framework ceiling (notional)£5,000,000total for 2 lots · framework ceiling, not attributable revenue
Submissions closed 6 Feb 2026awarded 27 May 2026
Awarded to Thomas Sinden Limited +2 more2 awards
Framework period 4 yrsends 1 Apr 2030 · starts 1 Apr 2026

What is being bought2 lots · detail below

Published requirement description

For more information about this opportunity, please visit the Delta portal at: www.delta-esourcing.com/tenders/UK-London:-D… ↗

To respond to this opportunity, please click here: 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 0800 923 9236 or email [email protected].

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 goods.

b.Including for all necessary rubbing down, preparation, and if required, stripping down to bare metal/timber prior to works.

c.Maintain all work areas in a clean, tidy and safe condition free from oil, grease, dust and debris.

d.Allow for appropriate storage for tolls and materials. Clearing of all debris, waste and rubbish generated on site, including keeping all work areas in an orderly state.

e.Carrying out of repairs to windows/doors, and all other timber repair. Including piecing in new timber and conservation repair to match.

f.Carrying out of repairs to metal windows/doors, and any other metalwork repair. Including replacing / repairing any existing doors, windows, frames, railings, gates and any other metal fixtures to match.

g.Replacement or overhaul of windows/door of all types, to be in keeping with the architecture of the estate, as required. Leaving in full working order.

h.Replacement or overhaul of rainwater goods of all types, to be in keeping with the architecture of the estate, as required. Refixing and ensuring that falls are sufficient to shed rainwater to outlets.

i.Installing thermal upgrades to all windows, by the insertion of draft proofing.

j.Arranging for the supply and fit of secondary glazing alternatives.

k.Carrying out of masonry repairs, such as stonework in the areas where decoration works are being undertaken. Including for repointing, mortar repair, sourcing and piecing in new stone to match.

l.Acting as the Principal Contractor for Health & Safety management of the site, including CDM duties.

m.Provision of all required access arrangements to facilitate the works. Including full scaffolding, towers and mobile working platforms. Allowing for debris netting and boarding to prevent accommodation of waste in work areas.

The contract shall operate as a Framework for a 4 year period and will be split between 2 lots, contractors can apply for either lot. Each lot covers areas comprising as follows;

Lot A – 2 contractors to be appointed

•Windsor Castle (5 phase programme)

•Windsor Royal Mews (5 phase programme)

Lot 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.

Works in each location will be allocated each financial year depending on available budgets. Works will usually be allocated in phased areas, but may be required for smaller areas from time to time. Contractors will be required to review allocated areas to confirm the level of work required.

The contractor will be required to arrange access with residential properties and will be required to provide security cleared staff to work throughout the contract. Contactors will be required to escort their sub-contractors at all times.

The operations of the estate will include regular events, contractors will be required to programme their works to avoid inconvenience during events. At times it will be necessary to rearrange work at short notice due to events occurring on site.

Please note, in this instance, The Royal Household has voluntarily decided to issue a Notice as the total value of works is below the threshold. This procurement process therefore is not run in accordance to Procurement Act regulations.

For more information about this opportunity, please visit the eSourcing portal at:

www.delta-esourcing.com/tenders/UK-UK-London… ↗

To respond to this opportunity, please click here:

www.delta-esourcing.com/respond/TZ429572TP ↗

CPV: Decoration work · Refurbishment work

How this framework works

From the published notice
Type
Closed framework
Call-offs
call-offs may be awarded directly or by further competition
Places
up to 3 suppliers · 5 bids on the busiest of 2 lots (1.7 per place) · 3 appointed (full)
Framework period
4 yrs from 1 Apr 2026
Published description of the framework

TBA

Lots and requirements (2)Procurement structure

2 lots · all with a published value
Lot #1Windsor Castle and Windsor Royal MewsAwarded 4 yrsSMEPublished value£3,800,000

Lot A – 2 contractors to be appointed

•Windsor Castle (5 phase programme)

•Windsor Royal Mews (5 phase programme)

Contract period: 1 Apr 2026 – 1 Apr 2030 (4 yrs)Value: £3,800,000 exc. VAT · £3,800,000 inc. VAT
Delivery: UKEligibility: SME eligible
Lot #2Home Park and Hampton Court Royal PaddocksAwarded 4 yrsSMEPublished value£1,200,000

Lot 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.

Contract period: 1 Apr 2026 – 1 Apr 2030 (4 yrs)Value: £1,200,000 exc. VAT · £1,200,000 inc. VAT
Delivery: UKEligibility: SME eligible

What it takes to win
i

How this buyer will score bids.

The evaluation criteria and weights exactly as published on the notice, grouped by family (price, quality, social value and so on).

Evaluation split and conditions of participation as published; the tender pack may add more
What this means for your bid
  • “Windsor Estate External Redecorations and Refurbishment” is a framework: the contest is a place on its panel, up to 3 suppliers, not a single contract: call-offs may be direct or by further competition.

Procedure terms & legal framework

From the official record
Procedure method
Below threshold - open competition
Legal basis
UKPGA · 2023/54 Procurement Act 2023
Procurement category
Works
Notice status
Awarded
Procurement threshold
Below threshold
Regulatory regime
Standard
Commercial structure
Framework agreement
Who may use this agreement
Not stated in the notice; call-off rights may be limited to the establishing authority
Competition type
Competitive procedure
GPA / WTO covered
Unspecified in notice
Recurring procurement
Unspecified in notice
First published
19 Nov 2025, 16:05 GMT
Last source update
27 May 2026, 17:23 BST
Authority reference
0058 PPTO
FTS notice number
2025/S 000-075375
Latest notice
Contract award notice (UK6)
Classification (CPV)
Decoration workRefurbishment work
Delivery area
UK
Official registry OCID
ocds-h6vhtk-05e4b8 Find a Tender

How it was run

Official notice
Run through: Delta eSourcing · Who buys & how to bid on Delta
Public notice page · account needed to bidElectronic submission allowed
Access & registration note: Free Select account; no DUNS asked at signup
Appointment period ends
6 Feb 2026, 11:00 GMT
Clarification deadline
26 Jan 2026, 11:00 GMT
Submission channel
Official e-sourcing portal
Electronic submission
Allowed
Detailed submission instructions & authority contactsFrom official release

Contract Ref. 994522736

Opening Date: 19/11/2025 13:00

Closing Date : 15/12/2025 11:00

Tenderers will need to sign up to the Royal Household's e-Sourcing platform, Delta, in order to receive the PSQ and Tender and able to submit clarification questions and tender returns.

Sign up link: www.delta-esourcing.com/delta/signup.html ↗.

Access Code : 27S668S3SN

Tenderers will need to be registered on the Central Digital Platform (CDP) in order to complete the PSQ. The CDP is free to use and will mean tenderers should no longer have to re-enter this information for each public procurement. The CDP is available at www.gov.uk/find-tender ↗.

Timeline

19 Nov 2025 → 27 May 2026 · 5 dates
  1. Tender notice published337 days ago
    19 Nov 2025, 16:05 GMT
  2. Clarification questions by269 days ago
    26 Jan 2026, 11:00 GMT
  3. Admission / appointment period ends258 days ago · period end, not a bid countdown
    6 Feb 2026, 11:00 GMT
  4. Contract starts204 days ago
    1 Apr 2026, 00:00 BST
  5. Latest notice published148 days ago
    27 May 2026, 17:23 BST

Notice history

4 events · 2 releases on Find a Tender · since 19 Nov 2025
  1. Tender notice published
    19 Nov 2025, 16:05 GMT
    UK4
  2. Contract award notice published
    27 May 2026, 17:23 BST
    UK6
  3. Status changed to complete
    27 May 2026, 17:23 BST
  4. Contract signature expected
    7 Jun 2026, 23:59 BST
    scheduled

Commercial outcome & contract awards

Published awards, contracts and bid statistics, not a forecast
Suppliers appointed 32 awards · see the list ↓
Bids received 54 from SMEs · busiest of 2 lots
Awarded toValueDateStatus
Lot 1 · Windsor Castle and Windsor Royal Mews1 award
Thomas Sinden LimitedSME, Trident Maintenance Services LtdSMEEx Decs Fwk Lot A: Windsor Castle and Windsor Royal Mews8 Jun 2026 – 7 Jun 2030£3,800,000 inc. VAT27 May 2026Awarded
Lot 2 · Home Park and Hampton Court Royal Paddocks1 award
IAN WILLIAMSEx Decs Fwk Lot B: Home Park and Hampton Court Royal Paddocks8 Jun 2026 – 7 Jun 2030£1,200,000 inc. VAT27 May 2026Awarded

Bid statistics published by the authority

LotBidsSMEVCSEValid bid range
1 · Windsor Castle and Windsor Royal Mews5final-stage tenders · 6 at stage one40—
2 · Home Park and Hampton Court Royal Paddocks3final-stage tenders20—

Contracting authority & participating public bodies

The Royal Household

Contracting authorityPublic undertaking GB-PPON: PGLT-2499-PJTM Buckingham Palace, London, London, SW1A 1AAContact name, email

Framework contractors & participating bidders

3 commercial parties on the notice
  • Ian Williams LtdFramework contractorGB-PPON: PHBB-3478-VTVT Quarry Road, Bristol, South West, BS37 6JLContact name, email
  • Thomas Sinden LtdFramework contractorGB-PPON: PTYN-6256-NGVH 137-145 Church Road, Romford, London, RM3 0SHContact name, email
  • Trident Maintenance Service LtdFramework contractorGB-PPON: PQRP-4218-THRY Suite 52, Grovewood Business Centre, Strathclyde Business Park, Wren Court, Bellshill, Scotland, ML4 3NQContact name, email

Official documents & specifications (3)

Official links; attachments are not copied

Notices published for this procedure

  • Contract award notice awardContract award noticeUK6Contract award notice on Find a Tender
  • Contract award notice awardContract award noticeUK6Contract award notice on Find a Tender
  • Tender notice tenderTender noticeUK4Tender notice on Find a Tender