Kenton fire stopping
Planning work on a service penetration in Kenton? We assess it, carry out the work and guarantee our workmanship for 12 months.
- Penetration schedules that need working through
- Head-of-wall gaps with no fire seal
- Damaged fire seals in risers and voids
Fire stopping for Kenton sites
Photos, a specification or a quick description of the joints is enough to start a fixed quote.
How we handle fire stopping in Kenton
Sealant is the specified answer for plenty of openings, such as metal pipes, cables and some small ducts where the detail covers them. Larger openings and some plastic pipes call for collars, wraps, batts or boards instead. We use sealant where it is the specified product, and we tell you when a detail calls for something else. If you have non-fire-rated filler around services and head-of-wall gaps with no fire seal, we can help, whatever the surface. Looking for mastic applicators who cover Kenton? We have been sealing commercial buildings since 2005.
After a fit-out or new cabling in a London building, risers and ceiling voids are where open service gaps tend to be found. If sealant is the specified product we fit it to its tested detail, and if the detail needs something else, you will hear it from us.
Work we carry out in Greater London comes with a 12-month guarantee. If an installation problem shows up, ring 01277 525 020 or use the quote form and we’ll arrange a return visit.
- Where
- Kenton (HA3, HA7, HA1)
- Wider area
- Greater London
- Guarantee
- 12 months on our workmanship
- Price
- A fixed quote before we start
- Phone
- 01277 525 020
- Updated
- 3 November 2026
Keeping the joints sound
Every sealant joint needs some looking after, and their life depends on movement, exposure, cleaning and use. We suggest:
- Leave fire sealant to cure fully before covering it
- Agree the fire-stopping specification before services go in
- Include service cupboards in routine inspections
- Keep general-purpose fillers away from compartment walls
After the work, brief anyone else working in the area that the openings are now sealed. If a seal has to be opened for a new service, it should be reinstated to the same detail, by someone who knows the system.
The simplest way to keep compartment walls intact is to plan fire stopping into every job that crosses them. That way the opening is sealed while the trade and access are still there instead of being left for someone else.
Diagnose, treat, sign off
We follow your site rules from the start: signing in, inductions and any permit to work. Once we’re cleared to begin, the joints are worked through in the order agreed with your site contact, and each area is checked before we leave it. The ULEZ covers the whole of Greater London, and parking near a job is rarely simple. Let us know about any on-site parking or loading arrangements when you send the job details.
- We read the specification, drawings or penetration schedule you send and ask about anything unclear.
- Every penetration is compared with its detail: wall or floor type, service, gap size and depth.
- 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
- Confirm the product named in the specification
- Move anything stored against the joints
- For older buildings, check the asbestos register before work
Request a quote
If there’s a specification, drawings or a tender package, send it with your enquiry, and we’ll price against exactly what is specified. Smaller jobs need nothing more than photographs and a few notes.
Read more
General trades versus a specialist
For most general trades, sealant is a sideline. A specialist prepares properly, controls joint depth and picks a product with the right movement class, which is what makes a joint last.
The visible bead is only part of the job. Correct depth, the right primer and a sealant matched to the movement are where general trades tend to cut corners.
Kenton: questions and answers
Will you work in a care home in Kenton without moving residents out?
Yes, with the manager deciding the order and timing of rooms. Tell us about any infection-control or safeguarding requirements and we’ll work to them.
Is East Lane Business Park, near Kenton, within your area?
Yes. Estates, retail parks and business parks around Kenton, East Lane Business Park among them, are all within reach. Photos and a short description are enough for a first look.
Will you just go over the old sealant?
No. Failed sealant is removed and the faces cleaned back to sound, dry material first, because fresh silicone will not bond with aged silicone.
Which sealant will you use?
The specification comes first, if there is one. Without one, the joint decides: its movement, its surfaces and what it has to cope with.
Is Kenton in your area?
Yes. We cover Kenton and the rest of Greater London. For a quote, ring 01277 525 020 or email a schedule or drawings.
Do you have public liability insurance?
Yes. Mastic Doctor is fully insured, public liability included.
How do you deal with asbestos in old sealant?
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. We don’t remove asbestos-containing materials.
When it isn’t the sealant
We check first that sealant really is the fix. It isn’t the answer for:
- Walls or floors that aren’t fire-resisting to begin with
- Large openings beyond what any sealant detail covers
- Reviewing a building’s overall fire safety
Not sure which it is? You can call the office on 01277 525 020 or email the details over and we will tell you honestly before you book.
Surfaces we seal
- Service gaps in risers
- Linear gaps at wall heads
- Pipe penetrations
- Cable penetrations
- Small duct penetrations where the tested detail allows
- Joints between fire-resisting walls and floors
Places near Kenton
Other services in Kenton
How the job changes by surface
Risers and ceiling voids
Openings above suspended ceilings are easy to miss. We follow your schedule area by area.
Linear joints
Head-of-wall joints often have to absorb slab deflection. We use the product and backing the detail names for that movement.
Building owners, agents and FMs in Kenton
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.
Facilities managers want contractors who arrive with the paperwork sorted. Tell us what site paperwork you need, such as RAMS, an insurance certificate or CSCS details, and we will confirm with the quote.
Penetration seals near Kenton
Approved Document B is the English guidance that covers fire stopping around openings and penetrations. References to the older BS 476 classes are being removed from it from 2 September 2029, after which the European classification, BS EN 13501-2, is the route, subject to transitional arrangements. Either way, we install the specified product to its tested detail. The 2 miles around Kenton include two care or nursing homes. Care homes rely on fire-resisting walls and floors, and maintenance work that breaks through them leaves openings to seal. Where that’s fire-rated sealant, we install it to the manufacturer’s tested detail.
Tenant changes at parks like East Lane Business Park (to the south of Kenton) bring new data and services, and openings through fire-resisting walls need the specified seal. Theatres, wards and plant rooms at sites like Northwick Park Hospital, 1 mile south-west of Kenton, all have compartment walls crossed by services. For a unit at a centre such as St. George's Shopping Centre, 1.4 miles to the west of Kenton, penetration seals are worth checking after each shop fit.
Kenton is about 2 miles south of Stanmore, in Greater London. Businesses, contractors and managing agents in Kenton use us for work on service penetrations. Kenton is one of 764 places in Greater London on our list for service penetrations. We also cover London, around 11 miles from Kenton.
We take on service penetrations across the HA3, HA7 and HA1 postcode area. For a building on Retreat Close, Kenton Road and Woodgrange Avenue or nearby, send details and we will quote for service penetrations. Main routes into Kenton include the A4006. We also cover South Kenton (1 mile south), Northwick Park (1 mile south-west), Greenhill (1 mile west), Wealdstone (1 mile north-west) and Harrow on the Hill (2 miles south-west). Further afield, our area takes in London (11 miles south-east), City of Westminster (8 miles south-east), Marylebone (8 miles south-east), Kensington (7 miles south-east), St Pancras (9 miles south-east) and Shoreditch (11 miles south-east).
Local landmarks in Kenton
We work on buildings around Uxendon Manor Primary School, The New Moon pub and Preston Park. For rail, the closest station is Kenton station, roughly 0.5 miles south-west of the centre. Well-known places in the area include St. Anns (1.3 miles west) and Hilfield Castle (4.9 miles north). Not far away are Masons Field and Northala Fields.