PAS 9980 is the British Standards Institution's Publicly Available Specification for assessing the external wall construction of existing multi-storey, multi-occupied residential buildings, and for deciding what — if anything — needs to change.
It replaced the informal, inconsistent use of EWS1 forms with a structured methodology: a qualified fire engineer assesses the whole external wall build-up, considers the building's specific risk factors (height, escape strategy, compartmentation), and reaches a proportionate, risk-based conclusion rather than a blanket "combustible = must remove" approach.
A PAS 9980 assessment might conclude that a building needs full cladding remediation, targeted repairs (such as fixing cavity barriers without removing the outer panels), or no work at all — the point is proportionality based on actual risk, not material class alone.
We don't carry out PAS 9980 assessments ourselves — that's a fire engineer's role — but we regularly install the remediation works that follow an assessment, working from the fire engineer's specification and coordinating installation records back into the building's fire safety case.
We confirm the right fire classification and cavity barrier detail for your building before we quote.