Contract workers at Sellafield nuclear site are to strike in a dispute over pay

200 workers overwhelmingly rejected a 3.5% pay offer

Author: Alan Jones, PA Industrial Correspondent Published 17th Jul 2025
Last updated 17th Jul 2025

Contract workers at the Sellafield nuclear site are to strike in a dispute over pay.

Members of the GMB union employed by Mitie, including cleaners and security staff, will walk out for two weeks from August 1st

The 200 workers overwhelmingly rejected a 3.5% pay offer.

The frontline workers are responsible for cleaning, security, landscaping, waste management, postal services, and laundry support the safety and functionality at the facility.

Fran Robson, GMB regional organiser, added: "Without these workers, Sellafield cannot operate safely or securely.

"If Mitie refuses to return to the negotiation table with a meaningful offer, strike action will go ahead, risking significant disruption to this critical nuclear site.

"We call on Mitie to provide a pay rise that genuinely recognises the essential contribution of these workers."

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