About Onyx Fire Ltd
Founded in 2021, Onyx Fire Ltd has quickly established itself as a leader in passive fire protection, guided by Director Marvin Williams' two decades of industry expertise. Our reputation is built on excellence, evidenced by our high client retention and successful delivery of prominent projects across the nation.
What Sets Us Apart:
• Industry-Leading Expertise: Unrivalled knowledge in passive fire protection
• Quality Assurance: Rigorous third-party assessments and in-house quality checks
• Qualified Team: All site members hold CSCS cards and minimum NVQ Level 2 qualifications
• Professional Leadership: Supervisors and project managers certified with SSSTS/SMSTS
• Specialist Environment Experience: Proven track record in hospitals, schools, and care homes
We understand that fire protection isn’t just about installation – it’s about delivering solutions that work in your environment. That’s why we specialise in minimal-disruption approaches, ensuring your operations continue smoothly while we secure your safety compliance.
Our commitment to professionalism, combined with our technical expertise, makes us the trusted choice for organisations requiring the highest standards of fire protection.
WHY ONYX FIRE

HEALTH & SAFETY
Onyx Fire will not carry out any works unless it is safe to do so. Health and Safety is key to the company as we put our employees first. You can bank on the team to work on a strict programme and have access to our logging system for any audits you may wish to carry out.

WORKMANSHIP
Manufacturers details are logged to ensure the correct application is completed for each defect scenario. Anything outside of standard details will be flagged and issued to the manufacture for further guidance to be resolved.

MANAGEMENT
The team are commercially minded with their strategy, always fully competent and goal focussed to ensure the client has a streamlined experience with Onyx Fire.
Our Team

Marvin Williams
Director

Ramona Williams
HR Director

Danielle Cheddesingh
Office Manager