West Hendon fire stopping
Fire-rated and intumescent sealing of service penetrations and linear gaps in West Hendon. CHAS accredited, Constructionline member, with a 12-month guarantee on workmanship.
- Unsealed openings around new pipes and cables
- Fire stopping installed outside its tested range
- Fire sealant pulled out of the opening
Fire stopping for businesses in West Hendon
Photos, a specification or a quick description of the joints is enough to start a fixed quote.
Fire stopping in West Hendon, done properly
Our applicators are CSCS-carded, and we are CHAS accredited and a Constructionline member. We hold no third-party fire-stopping installer certificate and we’d rather say that up front. We install the specified fire-rated sealant to its tested detail, and our workmanship carries a 12-month guarantee. We work on cable penetrations, small duct penetrations where the tested detail allows and joints between fire-resisting walls and floors, and what we’re called in for most is improvised or mixed-product fire seals and penetration schedules that need working through. Sealant contractors, mastic applicators, sealant specialists: whatever the job title on the order, the work in West Hendon is the same: failed joints cut out, faces prepared and the right sealant laid to the right depth.
In a London area such as West Hendon, buildings are refitted often, and every new cable, pipe or duct through a fire-resisting wall or floor leaves a gap. Each service penetration gets fire-rated or intumescent sealant if that’s what is specified, laid to the product’s tested arrangement.
We sign every job off with a 12-month guarantee. It’s a plain promise: if our work fails within that year, we put it right.
- Place
- West Hendon (NW9, NW4)
- Region
- Greater London
- Cover
- 12 months on every job
- Price
- Quoted before any work starts
- Call
- 01277 525 020
- Page updated
- 3 November 2026
Aftercare for building managers
Regular inspection catches problems early. Specifically:
- Get seals inspected before ceilings and boxing close
- Foam or ordinary sealant is never a fire-seal repair
- Agree the fire-stopping specification before services go in
- Check with the data sheet before painting over fire sealant
Add risers, plant rooms and ceiling voids to routine fire-stopping checks. Watch for cracked sealant, new services with no seal and openings that have grown.
Looking at service areas on a regular cycle pays off. A cracked or disturbed seal found early is a small job.
Doing it in-house
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.
Redoing a failed joint typically costs more than getting it right at the outset, since all of it has to come out and the faces be cleaned back again. For that reason, many FMs and contractors use a sealant specialist from the outset.
Work for main contractors and building owners
Hotels, schools, healthcare sites, offices and retail units book us directly too. The work is planned around how the building runs, so the building keeps working while we do.
When you manage a building on behalf of an owner, you need clear quotes and clear reporting. We quote a fixed sum, confirm the scope and walk the finished work with you or your representative, plus a 12-month guarantee.
Why it’s worth doing now in West Hendon
It is cheaper to seal service penetrations as each services package finishes than to come back for them later. Openings are visible, access is open and nothing has to be taken down and each detail can be checked as we go. Access in London is hard enough to arrange once, so it makes sense to deal with every failing joint while access is in place.
Cost follows what’s involved: stripping out, preparation, sealing, access and phasing. Call for a quote.
Why us?
- Constructionline member
- One contact handling all your sites
- Old sealant cut out, never sealed over
- Specification-led, product-correct work
Fire stopping around West Hendon: how the place shapes the job
London’s office and residential buildings are refitted constantly, and each round of cabling or pipework can leave open penetrations. We install fire-rated sealant where it is specified and work within the building manager’s permit system. West Hendon has three care or nursing homes no more than 2 miles away. Care homes rely on fire-resisting walls and floors, and maintenance work that breaks through them leaves openings to seal. We install fire-rated sealant to the tested detail where it is specified.
Colleges such as College of North West London (2.1 miles south of West Hendon) add IT and services as courses change, and each new penetration through a fire-resisting wall needs sealing with the specified product. In a hotel such as The Pillar Hotel (1.3 miles east of West Hendon), new pipework or cabling through bedroom and corridor walls needs sealing with the specified product.
West Hendon is about 2 miles north of Neasden, in Greater London. If you’re looking for fire stopping in West Hendon, we can help, as we do across Greater London. 764 places across Greater London fall within our area, including West Hendon. There’s a separate page for London, about 9 miles away.
We take on service penetrations across the NW9 and NW4 postcode area. Buildings on Alpini Road, Catkin Road and Garrick Road are within our area. You’ll find West Hendon on or near the A5. We also cover The Hyde (1 mile south), Colindale (1 mile north), The Burroughs (1 mile north-east), Hendon (1 mile east) and Staples Corner (1 mile south-east) for service penetrations. Nearby towns on our patch include London (9 miles south-east), City of Westminster (6 miles south-east), Marylebone (6 miles south-east), Kensington (6 miles south), St Pancras (7 miles south-east) and Shoreditch (8 miles south-east).
Landmarks near West Hendon
Locally, jobs take us to sites close to Woodfield School, Moon Under Water pub and Brampton College, among other places. West Hendon has its own railway station: Hendon station. A little further out are Brent Cross Shopping Centre (1.1 miles east) and Church Farmhouse Museum (1 mile north-east). Green spaces nearby include Masons Field and Parliament Hill.
Places near West Hendon
More services for West Hendon
Common questions from West Hendon clients
How does the move away from BS 476 affect penetration seals in West Hendon?
Approved Document B loses its BS 476 references from 2 September 2029, and BS EN 13501-2 becomes the route, subject to transitional arrangements. The designer or fire engineer sets the specification, and we install the product to the manufacturer’s tested detail.
Can you work around term dates at a campus such as Middlesex University?
Yes. Tell us the term dates, vacation periods and access windows, and we’ll plan the work around them. Any paperwork you need, from RAMS to our insurance certificate and CSCS details, is confirmed with the quote.
Can you fit around our working hours?
The office is staffed Monday to Friday, from 8am until 5pm. Let us know your site hours and access windows, and the work will be planned around them.
Are you CHAS accredited?
Yes. CHAS accredited, Constructionline member, and our applicators hold CSCS cards.
Can weather delay the job?
It can, when the joints are outside. Wet joints and cold, damp or frosty conditions stop the sealant bonding properly, so we watch the forecast and rearrange outside work if we have to. Indoors, the weather is rarely a problem.
How do I request a quote?
You can use the quote form on this site; alternatively, call 01277 525 020 or send photos by email. Photos, drawings or a joint schedule help us quote quickly.
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 work stops until any suspect material has been tested. Removing asbestos is a job for asbestos specialists, not us.
When to call us in West Hendon
When a seal departs from its tested detail, the evidence no longer covers it. Gaps beyond the tested size, shallow sealant, no backing where it was needed, or products from different systems mixed together are the usual culprits.
Most enquiries start with something like this:
- Expanding foam used as fire stopping
- Service penetrations left open after M&E works
- Fire-stopping items raised at inspection or handover
- Unsealed joints where partitions meet the slab
For a unit at a site such as Silk Bridge Retail Park (under half a mile south-east of West Hendon), any new service through a fire-resisting wall should be sealed to the tested detail.
Questions to ask before you book
- Is depth set with backing rod, or bond-breaker tape in shallow joints?
- How they handle RAMS and site documents
- How long is the guarantee, and what does it include?
- Their public liability cover
From enquiry to sign-off
Before any cutting starts, the area is protected: tape along each joint edge and covers over finishes, stock and equipment close by. On site, the work usually takes a single visit for a short list of penetrations, or a phased programme for a whole building, and our waste is bagged and taken away as we go. For a job in West Hendon, access comes first. Give us the hours we can be on site and we’ll schedule to suit.
- We read the specification, drawings or penetration schedule you send and raise any questions before we price.
- On site, each opening is checked against the tested detail it is meant to follow.
- Unsuitable fillers and loose debris are taken out of each opening.
- Mineral wool or other backing goes in wherever the detail asks.
- Fire-rated or intumescent sealant is gunned in to the specified depth, then tooled.
- If an opening needs something other than sealant, we tell you instead of improvising.
Preparing the site
- Send any specification or drawings in advance
- Point out parking and an unloading spot
- Send your site hours and access windows
Quotes
To get a fixed quote, call 01277 525 020 or send photos by email with the site address and an outline of the work. You can also send details through our quote form.