---
title: "Specialist Stone Cleaning to the Front Facade of Parliament Buildings"
ocid: "ocds-h6vhtk-060504"
canonical_url: "https://d3tenders.com/contract/?ocid=ocds-h6vhtk-060504"
markdown_url: "https://d3tenders.com/contract/ocds-h6vhtk-060504.md"
json_url: "https://d3tenders.com/contract/ocds-h6vhtk-060504.json"
source: "Find A Tender Service"
current_stage: "Award"
buyer: "NORTHERN IRELAND ASSEMBLY"
published: "2026-02-27"
---

# Specialist Stone Cleaning to the Front Facade of Parliament Buildings

Buyer: NORTHERN IRELAND ASSEMBLY  
Current stage: Award  
OCID: ocds-h6vhtk-060504

[View canonical contract page](https://d3tenders.com/contract/?ocid=ocds-h6vhtk-060504)  
[Download OCDS JSON](https://d3tenders.com/contract/ocds-h6vhtk-060504.json)

## Summary

This procurement process involves the Northern Ireland Assembly seeking specialist stone cleaning services for its Parliament Buildings, located in Belfast, UK. The focus is on removing biological growth and harmful pollutants that have accumulated on the Portland limestone façades to preserve the building's structural and aesthetic integrity. The contract was awarded through an open procedure, with the award stage dated 27 February 2026 and the contract running until 22 May 2026. The procurement falls under the services category and specifically pertains to parliament and public assembly buildings' cleaning services. Key addresses include the Parliament Buildings in Stormont and the supplier, P.G Clarke & Son Ltd., based in Enniskillen.

This tender represents a significant opportunity for companies specialising in conservation-sensitive restoration work, particularly those with expertise in handling heritage assets like the Grade A listed Parliament Buildings. It favours businesses adept at controlled methodologies and collaboration with conservation architects, ensuring the building remains safe and structurally sound. Enterprises familiar with comprehensive cleaning processes and heritage compliance, such as those offering building-cleaning services, are well-positioned to leverage this contract for growth in the heritage restoration sector. The open procurement method underscores accessibility, welcoming SMEs and other qualified businesses to expand their portfolio in government contracting.

## Notice

Parliament Buildings requires essential conservation cleaning works to address biological growth, carbon soiling, and harmful pollutants that have accumulated on the Portland limestone facades and associated external elements. The need for intervention is driven by: *preservation of the building fabric and prevention of long-term decay *removal of biological growth and harmful pollutants; *ensuring the building remains safe, structurally sound, and aesthetically appropriate; and *compliance with heritage management duties for a Grade A listed asset. The project includes cleaning the front elevation of Parliament Buildings, portico, tower, kerbs, steps, dwarf walls and architectural detailing, excluding areas expressly omitted in the specification. Repointing to approximately 10% of joints is anticipated following cleaning. A specialist contractor is required due to the conservation sensitivity, the need for controlled methodologies, and the requirement for careful liaison with the Conservation Architect.

## Key Details

| Field | Value |
| --- | --- |
| Publication source | Find A Tender Service |
| Latest notice | https://www.find-tender.service.gov.uk/Notice/018001-2026 |
| Notice type | UK7 - Contract Details Notice |
| Procurement type | Standard |
| Procurement category | Services |
| Procurement method | Open |
| Procurement method details | Open procedure |
| Tender suitability | SME |
| Awardee scale | SME |
| All stages | Tender, Award |

## Dates

| Field | Value |
| --- | --- |
| Publication date | 27 Feb 2026 |
| Submission deadline | 9 Feb 2026 |
| Future notice date | Not specified |
| Award date | 13 Feb 2026 |
| Contract period | 27 Feb 2026 - 22 May 2026 |
| Recurrence | Not specified |

## Values

| Field | Value |
| --- | --- |
| Tender value | £132,000 |
| Lots value | £132,000 |
| Awards value | £113,200 |
| Contracts value | £113,200 |

## Status

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

## Buyer

| Field | Value |
| --- | --- |
| Main buyer | NORTHERN IRELAND ASSEMBLY |
| Locality | BELFAST |
| Post town | Northern Ireland |
| Postcode | BT4 3XX |
| Country | Northern Ireland |
| ITL 1 | TLN Northern Ireland |
| ITL 2 | TLN0 Northern Ireland |
| ITL 3 | TLN06 Belfast |
| Local authority | Belfast |
| Electoral ward | Stormont |
| Westminster constituency | Belfast East |
| Delivery location | TLN06 Belfast |

## Supplier

| Field | Value |
| --- | --- |
| Number of suppliers | 1 |
| Supplier names | P.G CLARKE & SON |

## CPV Codes

### Divisions

- 45 - Construction work
- 71 - Architectural, construction, engineering and inspection services
- 90 - Sewage, refuse, cleaning and environmental services

### Codes

- 45216114 - Parliament and public assembly buildings
- 45452000 - Exterior cleaning work for buildings
- 71315000 - Building services
- 90910000 - Cleaning services
- 90911200 - Building-cleaning services

## Release History

- 27 Feb 2026 at 14:45 - Award - UK7 - Contract Details Notice - https://www.find-tender.service.gov.uk/Notice/018001-2026
- 13 Feb 2026 at 12:07 - Award - UK6 - Contract Award Notice - https://www.find-tender.service.gov.uk/Notice/013361-2026
- 13 Jan 2026 at 16:05 - Tender - UK4 - Tender Notice - https://www.find-tender.service.gov.uk/Notice/002814-2026

## Documents

- https://www.find-tender.service.gov.uk/Notice/018001-2026
  27th February 2026 - Contract details notice on Find a Tender
- https://www.find-tender.service.gov.uk/Notice/013361-2026
  13th February 2026 - Contract award notice on Find a Tender
- https://www.find-tender.service.gov.uk/Notice/002814-2026
  13th January 2026 - Tender notice on Find a Tender

## Notice URLs

- https://northernirelandassembly.delta-esourcing.com
- 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-060504. The underlying structured data is available as OCDS JSON at https://d3tenders.com/contract/ocds-h6vhtk-060504.json.