Fire stopping in Brondesbury
Fire-rated and intumescent sealing of service penetrations and linear gaps in Brondesbury. CHAS accredited and fully insured, with a 12-month guarantee.
- Hidden openings found during inspections
- Fire-rated sealant that has cracked or shrunk back
- Damaged fire seals in risers and voids
Need fire stopping in Brondesbury?
Share the site address and what’s failing, and we’ll reply with a fixed quote or arrange a visit.
Our process
Tell us your site hours and access windows and we will plan around them. On the day, the work area is kept contained and tidy, and your contact hears from us before we move to the next area. Most London premises stay occupied while we are on site, so we agree zones and timings with the building or facilities manager. Areas are handed back as each section is finished.
- We read the specification, drawings or penetration schedule you send and ask about anything unclear.
- On site, each opening is checked against the tested detail it is meant to follow.
- Anything that doesn’t belong in the opening, such as expanding foam or general-purpose filler, is removed.
- We fit the backing the detail asks for, to the stated depth.
- Fire-rated or intumescent sealant is gunned in to the specified depth, then tooled.
- Openings that need a collar, wrap, batt or other product are flagged to you rather than filled with sealant.
Getting the site ready
- Share the asbestos register for older buildings
- Point out parking and an unloading spot
- Confirm the product named in the specification
Quotes
Send us photos, drawings or a joint schedule are often enough for a fixed quote. If the job needs a look first, we will arrange a site visit.
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Fire stopping in Brondesbury, done properly
A lot of fire-stopping work comes after M&E installation, a refit or a tenant fit-out. New cable runs, replaced pipework and extra data routes all punch holes in compartment walls. We close the openings listed on your schedule, using the specified sealant and detail. If you have fire stopping installed outside its tested range and openings left by services added after handover, we can help, whatever the surface. Searching for sealant specialists in Brondesbury? We’ve been sealing commercial buildings since 2005.
Taller residential buildings in London may fall under the Building Safety Act’s higher-risk regime, where fire-stopping records get close attention. Our part is installing the specified fire-rated sealant; tell us what records you need and we will confirm with the quote.
What our 12-month guarantee covers is the way we did the job: the preparation, the sealing and the tooling. Damage, later alterations by others and movement beyond what the joint was designed for sit outside it.
- Where
- Brondesbury (NW6, NW2, NW10)
- Wider area
- Greater London
- Guarantee
- A 12-month guarantee
- Price
- Quoted before any work starts
- Phone
- 01277 525 020
- Updated
- 3 November 2026
FAQs: Brondesbury
Can you cope with the access rules in a London building?
Yes, most London buildings have access rules of some kind, and we plan around them. Say when the building is occupied and when it’s quiet, and we’ll plan accordingly. All of Greater London is inside the ULEZ, and our planning allows for it
Can work at a site such as Imperial College London fit around teaching?
Yes. Tell us the term dates, vacation periods and access windows, and we will plan the work around them. Let us know which documents your site asks for, and we will confirm them alongside the quote.
Is it fine to apply new sealant on top of old?
No. Failed sealant is removed and the faces cleaned back to sound, dry material first, because fresh silicone will not bond with aged silicone.
Is your workmanship covered by a guarantee?
Yes. The 12-month guarantee covers our preparation and application, but not damage, misuse or other trades’ work.
How much does the work cost?
It depends on the job: quantities, access, the product and any phasing. Call for a fixed quote.
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.
How do you choose the sealant?
Where there’s a specification, we use the product it names. Otherwise, we recommend a product to suit the joint’s movement, the substrate and the conditions, following the manufacturer’s guidance.
Building owners, agents and FMs in Brondesbury
Facilities managers want contractors who arrive with the paperwork sorted. Let us know the documents you need (RAMS, insurance certificate, CSCS details) and we’ll confirm them with the quote.
If you look after buildings for someone else, you need clear quotes and clear reporting. You get a fixed quote, an agreed scope and a walk round at the end, plus a 12-month guarantee.
Surface by surface
Cables and cable bundles
Single cables and small bundles are often within a fire-rated sealant’s tested detail. The detail limits bundle size and the gaps between and around cables and we work within those limits.
Metal pipes
Heat travels along metal pipework, and the tested detail may ask for insulation beyond the wall. We follow whatever the detail requires and flag anything we can’t match.
Why it’s worth doing now in Brondesbury
Open penetrations multiply: each new service adds to the list. Keeping on top of it after each round of works keeps the job small, rather than turning into a full building survey and reseal. In a London building, a failed joint rarely affects only one party. Putting it right early is less disruptive than dealing with the consequences.
Quantities, awkward access and phased working all shape the price. Site requirements like inductions and permits play a part as well.
Why appoint us
- Specification-led, product-correct work
- Constructionline member for supplier checks
- Joints cleaned back to sound surfaces
- CSCS-carded applicators
Take a look at how commercial sealant jobs are priced and our accreditations and insurance.
Do you need fire stopping in Brondesbury?
Some seals fail because the wrong product went in: builders’ foam or ordinary silicone used to fill a hole. It may look closed, but it has no tested fire performance in that position and has to be removed.
Common reasons buildings call us in:
- Openings left by services added after handover
- Old intumescent sealant that has split away
- Expanding foam used as fire stopping
- Damaged fire seals in risers and voids
At a university such as Imperial College London, 2.3 miles to the south of Brondesbury, labs, lecture blocks and residences are re-serviced often, so penetration seals are best checked after M&E work.
Questions to ask before you book
- Health and safety accreditation such as CHAS
- Their approach to joint depth and backing
- Proof of insurance
- Which product they’ll use, and why it suits the joint
Quoting for work in Brondesbury
Each job is priced on its own details. The main factors are:
- Any access equipment needed
- Which sealant the job calls for
- Location, for remote and island sites
- Working within restricted access windows
The price depends on how many linear metres there are, how much old material needs removing and the access. Call for a fixed quote once you have the details.
Sending details for a quote
A few photographs plus some basic facts will normally do. Please tell us:
- The type of building and who uses it
- The asbestos register, for older buildings
- Anything awkward about access or site hours
- Your programme or deadline
A handful of photographs and a postcode is the fastest way to a quote. Upload them with the quote form, or ring 01277 525 020 or email the details over if you’d rather talk the job through.
Also near Brondesbury
What else we do in Brondesbury
Fire stopping in Brondesbury: the local picture
Approved Document B is the English guidance that covers fire stopping around openings and penetrations. Its BS 476 references are being withdrawn from 2 September 2029, with BS EN 13501-2 classification taking over, subject to transitional arrangements. Either way, we install the specified product to its tested detail. There are a good number of hotels within about 2 miles of Brondesbury. Bedroom-to-corridor walls in hotels are normally fire-resisting, so new cabling or pipework through them has to be sealed to the tested detail.
Tenant changes at parks like The Quadrant Business Centre (to the south of Brondesbury) bring new data and services, and openings through fire-resisting walls need the specified seal. At a college such as City of Westminster College, 1.4 miles to the south-east of Brondesbury, checking penetration seals after summer M&E works is good practice.
Brondesbury is about 1 mile north of Kilburn, in Greater London. Commercial clients in Brondesbury can call on us for service penetrations. Across Greater London, 764 places are covered, including Brondesbury. We also cover London, around 6 miles from Brondesbury.
Business premises anywhere in NW6, NW2 and NW10 are within our area for service penetrations. We cover commercial and managed buildings on Dyne Road, Mill Lane and The Avenue. You will find Brondesbury on or near the A4003, so getting applicators and materials to site is simple. We also cover Kilburn (1 mile south), Cricklewood (1 mile north-west), Queen's Park (1 mile south), Kensal Rise (1 mile south-west) and Willesden Green (1 mile west). Nearby towns on our patch include London (6 miles south-east), City of Westminster (3 miles south-east), Marylebone (3 miles south-east), Kensington (3 miles south), St Pancras (4 miles east) and Shoreditch (6 miles east).
Local landmarks in Brondesbury
Locally, jobs take us to sites close to Black Lion pub, Kilburn Grange Park and Brondesbury College, among other places. There’s a railway station in Brondesbury itself: Brondesbury station. Nearby you’ll also find New End Hospital (1.5 miles north-east) and Brent Museum and Archives (1 mile west). The countryside around Brondesbury includes Primrose Hill and Westbere Copse.