Fire-rated sealing and fire stopping in Selhurst, Greater London
Fire-rated and intumescent sealing of service penetrations and linear gaps throughout Selhurst and nearby, by CSCS-carded applicators. CHAS accredited and fully insured.
- Hidden openings found during inspections
- Damaged fire seals in risers and voids
- Fire sealant pulled out of the opening
Need fire stopping in Selhurst?
Tell us what needs sealing and where, with photos or drawings if you have them, and we’ll price it.
Fire stopping in Selhurst
The test standards are BS EN 1366-3 for penetration seals and BS EN 1366-4 for linear joints. A rating such as EI 60 only holds when the product is installed as it was tested. So our job is to reproduce that arrangement faithfully. If you have non-fire-rated filler around services and openings left by services added after handover, we can put it right, whatever the surface. Most enquiries from Selhurst start with one failed joint and grow into a wider look at the building: we check the joints around it and give you an honest view of what needs doing now and what can wait.
In London, higher-risk residential buildings under the Building Safety Act bring extra scrutiny of fire-stopping records. Our part is installing the specified fire-rated sealant; tell us what records you need and we’ll confirm with the quote.
We sign every job off with a 12-month guarantee. The promise is simple: if our work fails within that year, we put it right.
- Place
- Selhurst (SE25, SE20, CR0)
- Wider area
- Greater London
- Cover
- A 12-month guarantee
- Quotes
- Quoted before any work starts
- Call
- 01277 525 020
- Updated
- 3 November 2026
Site staff or a sealant specialist?
General builders and handymen seal joints, but it isn’t their main trade. A specialist brings correct preparation, depth control with backing rod and a product suited to that particular joint.
What you see is the finished bead, but most of the work is hidden. Backing rod, primer where specified and a joint designed to move with the building are where general trades tend to cut corners.
What happens if it’s left?
Sealing behind the M&E trades area by area beats a sweep at the end. While the area is still open, every opening is easy to see and reach and each detail can be checked as we go. Access in London is hard enough to arrange once, so while access is arranged it pays to renew all failing joints, not just the worst.
Every site prices differently: the joint sizes, the specified product, access and working hours each have a bearing. Send the details and a fixed figure follows.
Why us?
- Clear, fixed quotes
- Fully insured
- CHAS accredited
- A Constructionline member, so easy to vet
Nearby places to Selhurst
What else we do in Selhurst
Maintenance after handover
Once the work is signed off, a little attention goes a long way:
- Look above ceilings when tiles are lifted for other jobs
- Check with the data sheet before painting over fire sealant
- Keep general-purpose fillers away from compartment walls
- Brief every trade that openings they make must be sealed
Once the seals are in, tell other trades they exist and must not be disturbed. Any seal cut back for a new service needs reinstating to its tested detail.
On fit-outs, get the fire-stopping specification agreed before the services go in. The designer can then choose details that suit the services planned.
What sealant work can’t fix
Honesty saves time and money. New sealant won’t cure:
- Fire doors, dampers or other fire safety equipment
- Designing or specifying fire stopping, which sits with the designer or fire engineer
- Walls or floors that aren’t fire-resisting to begin with
Not sure which it is? You can ring 01277 525 020 or send details through our quote form and we’ll tell you honestly.
Surfaces we seal
- Cable penetrations
- Linear gaps at wall heads
- Joints between fire-resisting walls and floors
- Small duct penetrations where the tested detail allows
- Service gaps in risers
- Pipe penetrations
What the job involves on each surface
Cables and cable bundles
Data cabling added after handover is a regular cause of open service penetrations. Openings around new cables are resealed to the detail, and we tell you if the bundle exceeds what sealant covers.
Linear joints
Joints at the top of partitions may need to move as the slab above deflects. We use the product and backing the detail names for that movement, with no gaps along the run.
How a job runs
Where the site stays busy, the work is phased so only one area is out of use at a time. Each area is protected, prepared and sealed, then handed back before we move to the next. All of Greater London is in the ULEZ, and kerbside space in Selhurst can be scarce. If there’s a loading bay, a car park or a permit we can use, tell us when you send details.
- We ask for the product and detail your designer has specified.
- Openings are measured and grouped by detail.
- Improvised fillers and failed sealant are removed.
- Where the detail needs backing, it goes in at the stated depth.
- We gun the sealant in to the specified depth around each service and tool it.
- We walk the completed areas with you and confirm the records agreed at quote stage.
Getting the site ready
- Point out any areas we must not close
- Have the specification and drawings to hand
- Explain the parking and delivery arrangements
Get a fixed quote
Specifications, drawings and tender packages are welcome with any enquiry, and we’ll price against exactly what is specified. For smaller jobs, photos and a description will do.
Related advice
Questions about Selhurst
Do you work in London buildings with loading restrictions?
Yes. Inductions, permits and timed loading are routine for us in London. The building manager’s rules go straight into our method. The ULEZ covers the whole of Greater London, which we allow for
Can work in a care setting near Selhurst go ahead while residents are there?
Yes. We agree rooms and times with the manager and work a few areas at a time. We follow the home’s own procedures throughout.
What if there’s asbestos in the old mastic?
Asbestos is possible in some older mastics, particularly in buildings from before 2000. We check the asbestos register before cutting out old sealant in an older building, and if asbestos is suspected, work stops until it’s tested. Removing asbestos is a job for asbestos specialists, not us.
Do you certify or sign off fire stopping?
No. Approval sits with the designer, principal designer or building control. We will confirm the products and details used.
What’s the quickest route to a quote?
The quote form is the simplest route, though you can also call 01277 525 020 or email us. Photos, drawings or a joint schedule help us quote quickly.
How soon can the area be used again?
The product and site conditions decide that. Some products skin over quickly but need longer to cure fully, and we confirm it before leaving site.
What will the job cost?
It depends on the job: quantities, access, the product and any phasing. Call for a fixed quote.
Where services cross fire walls in Selhurst
London’s office and residential buildings are refitted constantly, and each round of cabling or pipework can leave open penetrations. Penetrations are sealed with the specified product, to its tested detail, under the building’s own permit rules. For England, the fire stopping of penetrations is dealt with in Approved Document B. From 2 September 2029, BS 476 references are being taken out of Approved Document B, leaving BS EN 13501-2 classification as the route, subject to the Government’s transitional arrangements. What we install is set by the specification, and it goes in to the tested detail.
In a retail centre such as Whitgift Centre, which lies south-west of Selhurst, any fire-resisting wall between units that is crossed by new services needs sealing to the tested detail. On a hospital site such as Shirley Oaks Hospital, which lies south-east of Selhurst, fire-rated sealant goes in where the specification calls for it, with the work planned around the estates team’s permits. Workshops and IT rooms at colleges like Spurgeon's College (to the north-west of Selhurst) are re-serviced often, leaving penetrations to seal.
Selhurst is about 5 miles south-east of Stockwell, in Greater London. Anywhere in SE25, it works the same way: send details, get a fixed quote, we seal, and the work is guaranteed. 764 places across Greater London fall within our area, including Selhurst. London is covered too, some 7 miles away.
Business premises anywhere in SE25, SE20 and CR0 are within our area. Among the streets we cover are Park Road, Court Road and Dixon Road. With the A213 nearby, Selhurst is easy to get to with materials and equipment. Sites close to Selhurst are covered too, including South Norwood (1 mile north), Woodside (1 mile south), Ashburton (1 mile south), Elmers End (1 mile east) and Addiscombe (1 mile south). Nearby towns on our patch include London (7 miles north), City of Westminster (9 miles north-west), Marylebone (9 miles north), Kensington (9 miles north-west), St Pancras (9 miles north) and Shoreditch (9 miles north).
Local landmarks in Selhurst
We work on buildings around Harris Academy South Norwood, South Norwood Recreation Ground and The Albion pub, among other places. There’s a railway station in Selhurst itself: Norwood Junction station. Nearby you’ll also find Croydon University Hospital (1.7 miles south-west) and Crystal Palace Museum (1.4 miles north). For a walk, there’s Duppas Hill and Dulwich Upper Wood.