Cleanroom contractor in the UK: rules for buyers

By ZY Cleanroom · Updated 2026-11-01 · Sources at the end of the page

Which rules apply to your plant

GOV.UK says MHRA inspects manufacturing and distribution sites for compliance with good manufacturing practice, and that a site is inspected when it applies for a manufacturer or wholesale dealer licence and then periodically (GOV.UK, GMP and GDP inspections).

PIC/S lists MHRA as a participating authority with accession to the scheme in June 1999 (PIC/S, checked 1 November 2026).

Who builds cleanrooms here

Manufacturer licence holders are the regulated buyers, because MHRA inspects them when they apply and then periodically. This reading comes from the GOV.UK page, not from market statistics.

What a foreign supplier must arrange

GOV.UK says the CE mark continues to be available for construction products in Great Britain, following a written ministerial statement of 2 September 2024. The UK mark can also be used, but then a UK approved body must do the testing and certification where a designated standard or UK technical assessment applies (GOV.UK, Construction Products Regulation in Great Britain, last updated 21 May 2025).

The Construction Products (Amendment) Regulations 2025 (SI 2025/1172), made on 6 November 2025 and in force from 8 January 2026, extend the references to the EU Construction Products Regulation in the Great Britain rules so that they also cover Regulation (EU) 2024/3110 (legislation.gov.uk).

A panel supplier should expect to be asked for CE or UKCA marking, and the declaration of performance, for each product.

What to send for a first scope

Send the room list with the ISO 14644-1 class and occupancy state for each room. Add floor plans and ceiling heights. State whether the plant is new or existing, whether the rooms are sterile, and which nation of the UK the site is in, because Northern Ireland follows different marking rules. Name the quality head who will deal with MHRA.

Send your room list to ZY Cleanroom, a cleanroom design-and-build contractor with its own panel factory in Tianjin, China, to have a first scope prepared. CE-marked and FM-approved panels can be supplied for projects that require them, and other certification can be arranged per project.

Who does the site work

Site work is delivered with a licensed local contractor: yours, or one named in the contract. ZY supplies the design, panels, doors and numbered drawings.

Related guides

• How to choose a cleanroom contractor: questions and evidence
• Writing a cleanroom URS: contents and testable wording
• How to Import a Cleanroom from China
• The Cleanroom Project Lifecycle
• Turnkey cleanroom contractor
• Room list builder

Sources

• GOV.UK, Good manufacturing practice and good distribution practice (checked 1 November 2026)
• GOV.UK, Construction Products Regulation in Great Britain (last updated 21 May 2025)
• legislation.gov.uk, Construction Products (Amendment) Regulations 2025, SI 2025/1172, made 6 November 2025 (checked 1 November 2026)
• PIC/S, list of participating authorities (checked 1 November 2026)