Define the compartment lines
Review available drawings, fire strategy information and the agreed survey scope.
Protecting the fire strategy
Compartmentation
Compartmentation performance depends on more than visible penetrations. We inspect accessible compartment lines, record defects and deliver coordinated remedial work that respects the surrounding construction and fire strategy.
Scope
Practical support for planned and reactive requirements.
Our scope is confirmed against the property, available evidence and client requirements before work starts.
- Compartmentation and intrusive surveys
- Wall-head and junction defects
- Cavity barriers and concealed voids
- Coordinated opening-up and reinstatement
Connected building elements
Follow the compartment line through its interfaces.
A compartment line can include walls, floors, doors, service penetrations, junctions and ventilation interfaces. We review accessible construction and agreed openings against the available drawings and fire-strategy information. A local repair does not establish the condition of concealed areas outside the survey scope.
- Identify the intended compartment line and required performance
- Consider penetrations, junctions and openings together
- Record access limitations and design questions separately from completed repairs
Delivery process
Controlled from first check to handover.
Investigate & record
Inspect accessible locations and controlled openings, documenting the construction and defect.
Remediate & verify
Complete suitable repairs and re-inspect the finished compartment line before close-out.
Handover
Evidence supplied with the completed works.
Records are adjusted to suit the contract and reporting platform, while retaining the information needed to understand and verify the installation.
- Marked-up location plans
- Defect register
- Photographic evidence
- Remedial specification
- Close-out records
Relevant experience
Evidence from comparable programmes.
Named projects are shown where publication is permitted; other programme examples remain anonymised to protect client confidentiality.
View all project experience2,500+ penetrations treated
Passive fire protection at Booth House, Whitechapel
A six-month, multi-service programme covering more than 2,500 penetrations, 92 fire dampers, over 1,000 m² of rated ceilings and extensive fire door works in an occupied building.
Read case study 3 work areas coordinatedComplex passive fire remediation
Safe sequencing around live building use, multiple trades and concealed fire compartment lines.
Read case studyService coverage
Compartmentation across London and southern England.
Core coverage is supported from Barking. Larger projects elsewhere in the UK can be considered where the programme and supervision requirements are suitable.
View all service areasPractical guidance
Plan the work and the records.
Related services
Continue the compliance journey.
Frequently asked questions
Planning the right next step.
Can FireX quote compartmentation from an existing report?+
Yes. Send the survey, FRA action or specification with the property location and approximate quantities. We will identify information gaps before confirming the scope.
What evidence is provided at handover?+
Records are agreed for the contract and may include asset or location references, photographs, product information, tested-detail references and completion status. Scheme certification is included only where the particular work and supporting evidence qualify within the applicable certified scope.
Do you work in occupied buildings?+
Yes. FireX plans access, communication, segregation, housekeeping and progress reporting around residents, staff and other building users.
Talk to FireX
Discuss your compartmentation requirement.
Share the available survey information, approximate quantities, building location and target timescale. We’ll review the scope and respond with the next step.