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Fire Compartmentation Surveys
Fire compartmentation surveys in Southport.
Specialist compartmentation surveys to identify passive fire protection failures in walls, floors, ceilings and service penetrations. Visual and intrusive options available.
- Visual & intrusive surveys
- Passive fire protection
- Prioritised reports
The service
What is a fire compartmentation survey?
Fire compartmentation divides a building into discrete fire-resisting zones, using walls, floors, ceilings and protected corridors that resist the passage of fire and smoke for a specified period.
The purpose is to contain a fire within its compartment of origin, limit its spread and protect escape routes. A compartmentation survey is a specialist inspection of these passive fire protection elements to identify breaches, deficiencies or weaknesses, common causes being poor workmanship during construction, later building works that breach existing protection and service penetrations that have not been correctly fire-stopped.
We offer both visual and intrusive options. A visual survey examines accessible elements, an intrusive survey opens up ceiling voids, riser cupboards and other hidden spaces to assess what cannot be inspected from the surface. The appropriate level depends on the building type, age and risk profile.
Why compartmentation fails
- Unprotected service penetrationsCables, pipes and ducts passing through fire-resisting walls and floors create direct pathways for fire and smoke if not correctly fire-stopped.
- Ceiling void breachesFire can travel rapidly through ceiling voids where compartmentation barriers are absent, damaged or incorrectly installed.
- Remedial works damageSubsequent maintenance works often breach existing fire stopping without replacement, a common finding in older buildings.
- Partition walls not full heightNon-full-height partitions allow fire and smoke to pass over the top into adjacent areas or the ceiling void above.
- Damaged or missing fire doorsFire doors within compartment lines that are damaged, held open or missing defeat the compartmentation strategy entirely.
Why it matters
Why compartmentation surveys matter
Breaches in fire compartmentation are among the most significant and common fire safety deficiencies found in buildings. Unlike fire detection systems, which are tested regularly with failures immediately apparent, compartmentation deficiencies are often hidden within the fabric and can remain undetected for years, sometimes until a fire reveals them.
Recent legislation has sharpened the focus on the building fabric, especially for multi-occupied residential and higher-risk buildings, where a compartmentation survey provides essential evidence that passive fire protection has been assessed and any deficiencies addressed. For all other premises, it shows the Responsible Person has taken a proactive approach beyond the basic fire risk assessment, something increasingly valued by insurers and enforcing authorities alike.
Regulatory drivers
- Fire Safety Act 2021Brought the structure, external walls and flat entrance doors of multi-occupied residential buildings explicitly into scope.
- Fire Safety (England) Regulations 2022Additional duties for responsible persons in residential buildings over 11 metres, including regular fire door checks.
- Building Safety Act 2022Established the Building Safety Regulator for higher-risk buildings and requires documented passive fire protection.
- Often hidden for yearsUnlike alarms, compartmentation breaches are concealed in the fabric and can go undetected until a fire reveals them.
Two approaches
Visual and intrusive surveys
The right survey depends on the building, its risk profile and the level of assurance required. We advise on the approach and carry out both to the relevant standards.
Visual survey
A visual survey inspects all accessible fire-resisting elements without opening up the structure: visible compartment walls and floors, fire doors, service penetrations at accessible points, ceiling soffit conditions and any exposed fire stopping.
It suits situations where a general overview is required, where a building is occupied and disruption must be minimised or as a precursor to an intrusive survey to identify priorities and agree scope. Commonly used for initial compliance assessments, insurance purposes and routine review programmes.
Intrusive survey
An intrusive survey involves the controlled opening up of concealed voids, ceiling spaces, riser cupboards and other hidden elements, to inspect compartmentation that cannot be assessed from the surface.
It is required where the building has a higher risk profile, where previous visual surveys raised concerns or where the building is subject to the Fire Safety (England) Regulations 2022 or Building Safety Act 2022. Openings are made at representative sample points agreed in advance, then made good following inspection.
Scope of survey
What our survey covers
A systematic inspection of every element that holds the compartmentation strategy together.
How we work
Our survey process
A four-step approach, from scoping to verification, with a prioritised report at the centre.
- 01
Scoping and planning
We review available drawings and agree the survey type, scope and number of intrusive openings required, based on the building's risk profile.
- 02
Site survey
Our surveyors carry out the physical inspection, documenting all findings with photographic evidence and precise location references.
- 03
Survey report
A detailed report maps all breaches and deficiencies, with risk ratings and a prioritised schedule of remediation recommendations.
- 04
Remediation support
We specify appropriate remediation products, oversee contractor works and carry out post-remediation verification surveys.
Sectors
Who needs a compartmentation survey?
Any building whose safety depends on the integrity of its fire-resisting fabric.
Residential blocks
Multi-occupied buildings, particularly those subject to Building Safety Act requirements, need documented compartmentation assessments.
Commercial offices
Office buildings, especially those refurbished or reconfigured, commonly have compartmentation deficiencies from partition works.
Healthcare
Hospitals and care homes have complex compartmentation requirements and benefit from regular intrusive surveys to confirm integrity.
Industrial
Factories and warehouses with complex services infrastructure need surveys to ensure service penetrations are correctly protected.
Education
School buildings, particularly older stock, often have deficiencies resulting from years of incremental building works.
Hospitality
Hotels and serviced apartments where corridor compartmentation is critical to safe evacuation require regular assessment.
Why Southport Fire Risk Assessment
Find it, prove it, fix it
Passive protection specialists
Our surveyors have specialist knowledge of passive fire protection systems and products, enabling accurate assessment of both the deficiency and the appropriate remediation.
Detailed breach documentation
Every breach is photographed, precisely located and described. Our reports are designed to support contractor briefing and remediation specification.
End-to-end service
From survey through specification to post-remediation verification, we provide the full service, reducing the management burden on our clients.
Free, no-obligation quote
Speak to a fire safety specialist today
Tell us about your premises and we will respond within 24 hours with a clear, fixed quotation, with no obligation.
PAS 79-1:2020 · BS 9792:2025 · BS 8674:2025 · 24-Hour Response
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Request a compartmentation survey
Tell us about the building and we will advise on the appropriate survey type.