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Kharon Fire & Security

Fire Protection

Fire Doors

Fire-rated doorsets supplied, installed and inspected as complete, certified assemblies so they hold back fire and smoke for the rated period.

What we do

We supply, install and inspect fire doors as complete certified assemblies — the leaf, frame, intumescent and smoke seals, hinges, closers and other ironmongery. A fire door only performs to its rating when every component is compatible and correctly fitted, so we treat the doorset as a single tested system rather than a collection of parts.

The problem

A fire door is only fire-rated if the whole assembly is — and most fail on the details.

Fire doors are routine to look at and easy to compromise. A replaced closer, a packed-out gap, a painted-over seal or a wedge holding it open can void the rating of an otherwise sound door. Because the failures are small and incremental, they pass unnoticed until an inspection or, worse, a fire finds the weak point. Compliance depends on the complete assembly being correct and demonstrably maintained.

  • Gaps around the leaf outside tolerance, letting smoke and fire bypass the seals.
  • Non-compatible or missing ironmongery that voids the doorset's tested rating.
  • Intumescent and smoke seals damaged, painted over, or never fitted.
  • Self-closing devices removed or defeated, leaving doors propped open.

Our approach

What's involved

Certified doorset supply

Fire-rated doorsets supplied as tested assemblies with the leaf, frame and seals matched to the required rating, so the installed door reflects what was actually tested.

Compliant installation

Installation to the manufacturer's certified detail, with gap tolerances, frame fixings and seals fitted correctly so the door performs to its rated period in line with SANS 1253.

Controlled door hardware

Hinges, closers and latching specified to be compatible with the doorset and rated for self-closing performance, including controlled closing devices to SANS 51155 where required.

Inspection and condition surveys

Systematic fire-door inspections against gap tolerances, seal condition, ironmongery and closing function, producing a defect register prioritised by risk.

Remedial works

Correction of common failures — adjusting gaps, replacing seals and non-compatible hardware, and reinstating self-closing devices — to return the assembly to its rated condition.

Records and labelling

An inspection record and door schedule that gives facilities teams a defensible, maintainable register of every fire door and its current condition.

Aligned to SANS 1253SANS 10400-TSANS 51155

Case study

Proof in practice

Healthcare & Commercial

Fire-door survey and remediation across a multi-tenant building

Doors surveyed
Full set
Re-inspection
Defects closed
Evidence
Door-level

A multi-tenant commercial building fell short on a compliance review of its fire doors — propped doors, failed seals and non-rated hardware compromised compartmentation.

Representative scenario — not a named client or measured project result. Replace with approved project evidence before using as a real case study.

FAQ

Frequently asked

Why can't we just replace a fire door's closer or handle ourselves?

A fire door is certified as a complete assembly. Fitting hardware that was not part of the tested doorset, or installing it incorrectly, can void the door's rating. We specify compatible, rated hardware and record the change so the assembly stays certifiable.

How often should fire doors be inspected?

Inspection frequency depends on the building's use and traffic; high-traffic doors degrade faster. We recommend a routine schedule and set it out after surveying your doors, with the inspection record forming the basis of ongoing maintenance.

Can existing fire doors be repaired rather than replaced?

Frequently, yes. Many failures — gaps, damaged seals, missing or defeated closers — are remediable and far cheaper than replacement. Where a leaf or frame is damaged beyond the certified tolerance, we recommend replacement and explain why.

Fire-door compliance requires holistic assessment of the door set, frame, hardware, signage and intumescent seals. Individual component replacement does not guarantee a compliant assembly.

What happens next?

A clear, no-pressure process

  1. 1

    Share your requirement

    Tell us the site, systems and any compliance deadline. No obligation.

  2. 2

    Site assessment

    We survey the installation, zones and current compliance status against the relevant SANS standards.

  3. 3

    Scope & fixed pricing

    You receive a clear scope of work, standards mapping and transparent pricing.

  4. 4

    Delivery & documentation

    We install or service the system and hand over signed compliance records for your file.