Fire Stopping & Penetration Sealing

Krasi Fire Protection’s fire stopping and penetration sealing services ensure that every opening in your fire-resisting walls, floors, and ceilings continues to perform as a critical part of your building’s passive fire protection strategy. Wherever services such as cables, pipes, ducts, or cable trays pass through fire-rated elements, our systems restore the required fire resistance and help prevent fire, smoke, and hot gases from spreading quickly from one compartment to another.Advanced Drain Cleaning Techniques

Fire stopping and penetration sealing are essential because even small unsealed or poorly sealed gaps can act as channels for rapid fire and smoke spread, undermining the performance of otherwise robust fire compartments. By carefully selecting and installing tested fire stopping products—such as coated batts, sealants, collars, wraps, and mortars—Krasi Fire Protection closes these vulnerabilities and supports the integrity of your overall fire strategy.​

Our service starts with a detailed survey that identifies all relevant service penetrations and linear gaps in fire-resisting construction, including those hidden above suspended ceilings, within risers, and in plant areas. We then specify appropriate, certified systems for each penetration type and substrate, ensuring compatibility with the services and building use while following manufacturers’ instructions and applicable standards.​

Krasi Fire Protection’s trained installers apply and detail each fire stop carefully, paying attention to edge conditions, joint depths, annular gaps, and movement requirements so that the installed solutions perform as tested in real fire conditions. On completion, we provide clear documentation and, where required, labelling so that building owners, duty holders, and inspectors can see exactly what has been installed, where, and to what performance rating.​

By working with Krasi Fire Protection for fire stopping and penetration sealing, you strengthen compartmentation, support safer evacuation, and improve protection for assets and critical systems, while also demonstrating compliance with current building and fire safety regulations. Whether you are managing a new build, refurbishment, or remedial works following a fire risk assessment, our team delivers practical, compliant solutions that integrate smoothly with your wider passive fire protection measures.