Fire-rated sealing in North London & the Home Counties
Fire-rated sealing uses intumescent sealants for commercial and multi-occupancy work, documented for compliance. Compartment walls, service penetrations and movement joints sealed to maintain the fire rating.
What the job includes
Before
After- Full removal of existing joint material before resealing
- Correct intumescent product specified to the required fire rating
- Compartment wall and floor junctions covered
- Service penetrations — pipes, cables, ducting — fire-stopped
- Movement joints within fire-rated structures sealed correctly
- Product data and application record provided for compliance
How the work runs
Scope & rating confirmed
We confirm the required fire rating and which locations are in scope before pricing.
Strip out
Existing joint material or redundant fire-stopping removed back to sound substrate.
Prepare
Surfaces and penetrations cleaned and prepared to the product's fixing requirements.
Apply & document
Intumescent sealant applied to spec, then recorded for your compliance file.
Work in this trade
Fire-rated sealing FAQs
What is intumescent sealant, and how does it work?
It's a sealant that expands when heated, closing the joint or gap to maintain fire compartmentation for a rated period rather than letting fire and smoke pass through.
Do you provide documentation for building control or compliance?
Yes — product data sheets and a record of the sealant, location and fire rating applied are provided for your compliance file.
What locations typically need fire-rated sealing?
Compartment wall and floor junctions, service penetrations (pipes, cables, ducting), and movement joints within a fire-rated structure.
Can fire-rated sealant be used alongside standard sealants in the same building?
Yes, but only in the correct locations — fire-rated joints and penetrations need the specified intumescent product, not a standard silicone substitute.
Get a price for your fire-stopping
Send a couple of photos and rough measurements and we'll quote from those. Or call 07413 240639.