Fire stopping and compartmentation

Surveying and remediating breaches in fire compartmentation: service penetrations, cavity barriers, linear gaps and riser cupboards, with tested systems and a photographic record of every seal.

Fire compartmentation is invisible when it works and lethal when it fails. Most buildings we survey have breaches: cables pulled through walls during a refit, missing cavity barriers, riser cupboards open from floor to floor. Fire stopping puts the compartment back, using tested systems and a record that proves it.

Services

  • Compartmentation surveys against the fire strategy, with a mapped breach schedule.
  • Fire stopping of service penetrations: cables, pipes, ducts and trunking.
  • Linear gap seals, movement joints and head-of-wall details.
  • Cavity barriers in ceiling and roof voids.
  • Fire-resisting boarding of riser cupboards and service ducts.
  • Fire dampers: inspection and access provision.

The record

Every seal gets a unique reference label, a before and after photograph, the product used and its test evidence. The schedule is delivered digitally so it can feed your golden thread record under the Building Safety Act 2022. Where the survey finds problems beyond our scope, such as structural fire protection or external wall systems, we tell you and can recommend specialists.

Frequently asked

What is fire stopping?

Sealing the holes and gaps in fire-resisting walls and floors so that fire and smoke cannot pass from one compartment to the next. Every cable, pipe and duct that passes through a compartment wall is a potential breach unless it is sealed with a system tested for that situation.

How do you know the seal is right?

Each product is tested to BS EN 1366 for a specific wall or floor type, aperture size and service. We match the tested detail to the situation, photograph every seal with a unique reference before and after, and provide the manufacturer’s test evidence in the handover pack.

Do you survey first?

Yes. A compartmentation survey walks the fire strategy drawings against the building as built: risers, ceiling voids, plant rooms, corridors and flat separating walls. The report maps every breach so the remedial work can be scoped and priced accurately.

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