---
title: "Specialist decontamination cleaning of mould in castle dungeons, stores and castle keep S540341"
ocid: "ocds-h6vhtk-06ebeb"
canonical_url: "https://d3tenders.com/contract/?ocid=ocds-h6vhtk-06ebeb"
markdown_url: "https://d3tenders.com/contract/ocds-h6vhtk-06ebeb.md"
json_url: "https://d3tenders.com/contract/ocds-h6vhtk-06ebeb.json"
source: "Find A Tender Service"
current_stage: "Award"
buyer: "Norfolk County Council"
published: "2026-08-25"
---

# Specialist decontamination cleaning of mould in castle dungeons, stores and castle keep S540341

Buyer: Norfolk County Council  
Current stage: Award  
OCID: ocds-h6vhtk-06ebeb

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## Summary

Norfolk County Council procured specialist decontamination cleaning to remove mould from castle dungeons, stores and the castle keep. This is a specialist building-cleaning service, classified under CPV 90911200. The work concerns the treatment and cleaning of mould contamination in historic castle spaces rather than general routine cleaning. Norfolk County Council is the buying organisation, based in Norwich, and the requirement relates to its castle facilities. The service was awarded to Environmental Building Solutions Limited, an SME based in Milton Keynes. Suppliers with experience in specialist mould remediation, decontamination cleaning and working safely in sensitive or historic buildings would be relevant to this type of requirement.

The procurement has been completed and the contract was awarded through a below-threshold procedure described as ‘unknown’. It consisted of one lot. The selected supplier was Environmental Building Solutions Limited. The contract was signed on 18 November 2025 and runs from 19 November 2025 to 19 November 2027. Its value is £25,000 excluding VAT and £30,000 including VAT. The award is active and the contract is active. The procurement was evaluated as a services requirement, but the published information does not set out award criteria, weightings or detailed eligibility requirements. The outcome confirms a single supplier appointment for the full specialist mould decontamination cleaning requirement.

This award demonstrates a defined requirement from Norfolk County Council for specialist mould decontamination cleaning in castle buildings, including confined, historic and potentially sensitive areas. A credible future competitor would need practical capability in mould remediation and building decontamination, with the workforce, equipment and procedures to clean affected masonry, stores and underground spaces safely. Experience of working in heritage environments would be commercially relevant because castle dungeons and keeps can present restricted access, conservation sensitivities and unusual working conditions. The successful supplier was an SME, indicating that delivery at this scale can be undertaken by a focused specialist rather than only by a large national facilities-management company. Businesses able to evidence comparable completed work and reliable site-based delivery would be well placed for similar requirements from this buyer.

## Notice

Specialist decontamination cleaning of mould in castle dungeons, stores and castle keep S540341 PS25,000.00

## Key Details

| Field | Value |
| --- | --- |
| Publication source | Find A Tender Service |
| Latest notice | https://www.find-tender.service.gov.uk/Notice/081027-2026 |
| Notice type | UK7 - Contract Details Notice |
| Procurement type | Standard |
| Procurement category | Services |
| Procurement method | Not Specified |
| Procurement method details | Below threshold - unknown |
| Tender suitability | Not specified |
| Awardee scale | SME |
| All stages | Award |

## Dates

| Field | Value |
| --- | --- |
| Publication date | 25 Aug 2026 |
| Submission deadline | Not specified |
| Future notice date | Not specified |
| Award date | 18 Nov 2025 |
| Contract period | 19 Nov 2025 - 19 Nov 2027 |
| Recurrence | Not specified |

## Values

| Field | Value |
| --- | --- |
| Tender value | Not specified |
| Lots value | Not specified |
| Awards value | Not specified |
| Contracts value | £25,000 |

## Status

| Field | Value |
| --- | --- |
| Tender status | Complete |
| Lots status | Complete |
| Awards status | Active |
| Contracts status | Active |

## Buyer

| Field | Value |
| --- | --- |
| Main buyer | Norfolk County Council |
| Locality | NORWICH |
| Postcode area | Norwich |
| Postcode | NR1 2DH |
| Country | England |
| ITL 1 | TLH East (England) |
| ITL 2 | TLH5 Norfolk |
| ITL 3 | TLH51 Norwich and East Norfolk |
| Local authority | Norwich |
| Electoral ward | Lakenham |
| Westminster constituency | Norwich South |
| Delivery location | Not specified |

## Supplier

| Field | Value |
| --- | --- |
| Number of suppliers | 1 |
| Supplier names | Environmental Building Solutions Limited |

## CPV Codes

### Divisions

- 90 - Sewage, refuse, cleaning and environmental services

### Codes

- 90911200 - Building-cleaning services

## Release History

- 25 Aug 2026 at 17:09 - Award - UK7 - Contract Details Notice - https://www.find-tender.service.gov.uk/Notice/081027-2026

## Documents

- https://www.find-tender.service.gov.uk/Notice/081027-2026
  25th August 2026 - Contract details notice on Find a Tender

## Notice URLs

- http://www.norfolk.gov.uk
- https://www.legislation.gov.uk/ukpga/2023/54/contents

## Provenance

This Markdown file is an alternate public rendering of the D3 Tenders contract record. The canonical page is https://d3tenders.com/contract/?ocid=ocds-h6vhtk-06ebeb. The underlying structured data is available as OCDS JSON at https://d3tenders.com/contract/ocds-h6vhtk-06ebeb.json.