From a photo like this it is not possible to conclude whether the issue is straightforward or not. There is insufficient information to identify a compliant firestopping solution. It is not even clear whether this penetration is through a wall or a ceiling, which is critical when selecting the correct tested detail. The following details are missing: wall or ceiling construction type, required fire resistance rating, number of plasterboard layers and thickness, stud type and cavity configuration, cable type and diameter, annular gap size, whether sealing is required from one side or both sides, and whether the penetration sits within a tested compartment line. The blue plasterboard alone does not indicate the fire performance of the construction and cannot be used to select a firestopping system. Before proposing any solution, the construction specification and required EI rating must be confirmed. Only after that can a tested manufacturer detail be selected and applied correctly. Without this information, any recommendation would be speculative and not compliant with tested firestop systems or manufacturer installation guidance. Firestopping must always follow a verified tested detail, not a visual assumption based on a site photograph.

@Steve Platt There is no such thing as the most expensive tool if you have the right job for it. The most expensive one I bought was a Graco Ultra Max 2; the price was over £2,000 back in 2017.

@Dimitar Gvozdeykov Over the last few years, I have gradually stepped back from this type of work because of the pay level. I have moved my focus away from tool-based roles, especially as the physical strain builds up over time and makes it less practical for me to continue.

@Steve Platt Thank you for the information.

Having a lot of documents and speaking confidently using technical terms, in my personal experience, does not automatically make someone a good installer or a strong leader. There are many installers, supervisors and managers who have paperwork, but no real knowledge or practical understanding of Passive Fire Protection. Our work relies heavily on personal responsibility and a clear understanding of why it is critical to follow the standards and the tested details. Proper training should happen on site, in real conditions, not just through a one-hour session with an NVQ assessor to obtain a blue card.

Great initiative. Regular compliance-focused questions help close the gap between theory and what actually happens on site. In Passive Fire Protection, competence isn’t just about holding a certificate. It’s about understanding systems, limitations, tested details and how they interact with other trades. Opportunities like this help raise the standard across the industry. Looking forward to the first question.👍 🤝