
Fire stopping in Finchley
Fire stopping in Finchley, backed by over 20 years in commercial sealing. Fully insured, with a 12-month guarantee.
- Openings left by services added after handover
- Open linear gaps along the top of fire-resisting walls
- Snag lists that include open service penetrations
Fire stopping for Finchley sites
Photos, a specification or a quick description of the joints is enough to start a fixed quote.
How we handle fire stopping in Finchley
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, and they are easy to forget. We close the openings listed on your schedule, using the specified sealant and detail. We work on joints between fire-resisting walls and floors, linear gaps at wall heads and cable penetrations, and the failures we are asked to look at most are service penetrations left open after M&E works and fire-stopping items raised at inspection or handover. Most enquiries from Finchley 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.
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’ll hear it from us.
Building owners and contractors get the same cover: a 12-month guarantee on our workmanship. Faults in the structure, damage and other trades’ work fall outside it, and we say so plainly.
- Location
- Finchley (N3, N2, N12, NW11)
- Wider area
- Greater London
- Cover
- A 12-month guarantee
- Price
- A fixed quote before we start
- Call
- 01277 525 020
- Updated
- 3 November 2026

Common questions from Finchley clients
Will you take on work at estates like Finchley Industrial Centre, close to Finchley?
Yes. Our area takes in Finchley and its surroundings, with estates and business parks such as Finchley Industrial Centre included. Send details of the unit and the work through our quote form for a quick quote.
Can you seal around new services in a hotel near Finchley?
Yes, to the specification and the product’s tested detail. Work is done room by room so the hotel keeps trading; design and sign-off stay with the designer and building control.
Do you need to see the site first?
Photos, drawings or a schedule are often enough to quote. Where they aren’t, we arrange a site visit.
How long does a job like this take?
That varies with the scale of the job, but the work typically takes longer where risers, ceiling voids or occupied floors have to be worked through in sequence. Larger or phased jobs take longer, and we will give you a timescale with the quote.
Does weather matter for sealant work?
Outside, yes. Sealant needs a dry joint and a temperature within the product’s range, so damp, frosty or very cold days can stop external work. Internal work is rarely affected.
What about RAMS and site documents?
Let us know which documents the site needs, such as RAMS, an insurance certificate or CSCS details, and we’ll confirm them with the quote.
Are you insured?
Yes. We’re fully insured, and the certificate can go with your quote.
Our process
We follow your site rules from the start: sign-in, induction and whatever permit system the building uses. Once we are cleared to begin, the joints are worked through in the order agreed with your site contact. All of Greater London is in the ULEZ, and kerbside space in Finchley can be scarce. Let us know about any on-site parking or loading arrangements when you send the job details.
- The specification and schedule come first, so we know which details apply.
- Access, permits and the order of areas are agreed with the site team.
- Each opening is checked for wall or floor type, service, gap and depth.
- Unsuitable material is removed and the opening cleaned first.
- The specified backing and sealant go in to depth and are finished neatly.
- Anything outside the detail is reported to you rather than sealed.
Preparing the site
- Let us know about inductions and permits
- Arrange parking or a loading space
- Move anything stored against the joints
Getting a fixed quote
Send details, get a quote, we seal, guaranteed: that’s how every job runs. The first step is to phone 01277 525 020 or email us with what you know.
Advice
Fire stopping in Finchley: the local picture
With tenants changing and fit-outs following, London buildings see service routes altered again and again. 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.
Shop fits in centres such as Grand Arcade (to the north of Finchley) can bring new services through fire-resisting walls between units, which then need the specified seal. For a site team at a college like St. Giles College (2.4 miles south-east of Finchley), fire-rated sealing is best scheduled after the summer works. For an estates team at a campus like Middlesex University, 2.6 miles to the west of Finchley, summer M&E works are normally followed by a round of penetration sealing.
Finchley is about 6 miles north of City of Westminster, in Greater London. We send applicators to Finchley for service penetrations. 764 places across Greater London fall within our area, Finchley among them. There’s a separate page for London, roughly 8 miles from Finchley.
Postcode districts covered here: N3, N2, N12 and NW11 for service penetrations. Buildings on Station Road, Chaplin Square and Market Place are within our area. You will find Finchley on or near the B1462. If your building is just outside Finchley, we cover Church End (1 mile west), Woodside Park (1 mile north), North Finchley (1 mile north), Friern Barnet (2 miles north-east) and Oakleigh Park (2 miles north). Further afield, our area takes in London (8 miles south-east), City of Westminster (6 miles south), Marylebone (6 miles south), Kensington (7 miles south), St Pancras (6 miles south-east) and Shoreditch (7 miles south-east).
Landmarks near Finchley
Recent enquiries here include premises near The Elephant Inn, Bishop Douglass School and Francis Skaryna Belarusian Library and Museum and the streets around them. Also close by are Victoria Park (under half a mile north) and Woodhouse College (1 mile north-east). The closest station to Finchley is New Southgate station, roughly 1.9 miles north-east of the centre. Well-known places in the area include Finchley Memorial Hospital (less than half a mile north-east) and Grand Arcade (1 mile north). For a walk, there’s Highgate Hill and Lakeside Nature Reserve.
Work for main contractors and building owners
FMs need a contractor who is easy to get on site. Let us know the documents you need (RAMS, insurance certificate, CSCS details) and we’ll confirm them with the quote.
Building owners and managing agents use us on sealant work across single buildings or whole portfolios around Finchley. One quote can cover more than one site, which keeps the paperwork simple.
What happens if it’s left?
An unsealed opening affects more than fire safety: smoke, noise and draughts pass through them every day. Sealing them to the specified detail deals with the fire risk first and the building feels the difference. In Finchley, each extra visit means more notices, permits and disruption, so a proper job first time, with the old sealant fully removed, is worth it.
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 clients in Finchley choose us
- One number for every site we cover
- CHAS accredited contractor
- Our applicators hold CSCS cards
- Old sealant cut out, never sealed over
See how commercial sealant jobs are priced and how we’re accredited.
Also near Finchley
Other services in Finchley
Surface by surface
Cables and cable bundles
New data and power cables are the most common breach we see. We reseal around them to the specified detail, and any bundle too large for sealant alone is flagged.
Masonry and concrete
Block walls and concrete floors are common substrates for penetration seals. Dust and debris are cleared from the opening, with backing added if the detail requires it.
Aftercare for building managers
After handover, these steps help:
- Arrange inspection before areas are covered up
- File the specified details where the next contractor can find them
- Ask which product is in place before decorating
- Treat an open penetration as a priority repair
Once the seals are in, tell other trades they exist and must not be disturbed. If a seal has to be opened for a new service, it should be reinstated to the same detail.
On fit-outs, get the fire-stopping specification agreed before the services go in. Details can then be picked to suit the actual pipes, cables and ducts, and installation follows the programme.
When it isn’t the sealant
Sealant solves a lot, but not everything, and we’re upfront when that’s the case. It won’t fix:
- Issuing fire ratings or certificates for seals
- Reviewing a building’s overall fire safety
- Construction that lacks the fire resistance the seal relies on
Not sure which it is? You can call the office on 01277 525 020 or email the details over and we’ll tell you honestly.
Surfaces we seal
- Linear gaps at wall heads
- Cable penetrations
- Joints between fire-resisting walls and floors
- Service gaps in risers
- Small duct penetrations where the tested detail allows
- Pipe penetrations