Friern Barnet fire stopping
Our CSCS-carded applicators take on fire-rated and intumescent sealing of service penetrations and linear gaps in Friern Barnet and the surrounding area. Send photos or drawings for a fixed quote.
- Non-fire-rated filler around services
- Openings left by services added after handover
- Fire-stopping items raised at inspection or handover
Fire stopping near Friern Barnet
Tell us what needs sealing and where, with photos or drawings if you have them, and we’ll price it.
Questions about Friern Barnet
What happens to BS 476 references for fire stopping in Friern Barnet?
From 2 September 2029, Approved Document B drops its BS 476 references in favour of BS EN 13501-2 classification, with transitional arrangements. Our part doesn’t change: the specified product, to its tested detail.
Can you work in a London building with booked loading and goods-lift slots?
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 will plan accordingly.
Do you need to see the site first?
It depends on the job. Straightforward work can often be priced from photos and measurements, while larger or less clear jobs get a site visit first.
How do I request a quote?
It works in four steps: send details, receive a fixed quote, we carry out the work, and it’s guaranteed. The first step only needs photos and a postcode.
How long does a job like this take?
That varies with the scale of the job, though a typical visit usually takes a single visit for a short list of penetrations, or a phased programme for a whole building. For bigger or phased jobs, we’ll set out a timescale with the quote.
Who decides which product is used?
The specification comes first, if there is one. If there isn’t one, it comes down to the joint: how much it moves, what it bonds to and whether it’s wet, trafficked or fire-rated.
When is resealing likely to be due?
There’s no fixed lifespan: movement, exposure, cleaning, traffic and the product all play a part. Sealant joints are maintenance items, so inspect them regularly.
Fire stopping for commercial buildings in Friern Barnet
Where pipes, cables and other services cross a compartment wall or floor, the opening around them has to be closed so fire and smoke can’t move between compartments. Our job is fitting fire-rated and intumescent sealant at those service penetrations, and along linear gaps, where it is the specified product. We work to the product’s tested detail for every seal, not a rule of thumb. If you have fire-rated sealant that has cracked or shrunk back and head-of-wall gaps with no fire seal, we can help, on service gaps in risers, cable penetrations and joints between fire-resisting walls and floors alike. Whether you call it commercial sealant work, mastic application or joint sealing, in Friern Barnet it comes down to the same thing: the right product in a properly prepared joint.
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 will confirm with the quote.
The 12-month guarantee is for workmanship rather than wear and tear. Sealant wears with time, and movement, weather, cleaning and use decide how fast, so we spell out the cover before we begin.
- Where
- Friern Barnet (N11, N12, N10, N20)
- Region
- Greater London
- Guarantee
- 12 months on every job
- Quote
- Quoted before any work starts
- Telephone
- 01277 525 020
- Last updated
- 3 November 2026
Work for main contractors and building owners
For main contractors, we work as the sealant subcontractor. We work to your programme, your specification and your site rules.
If you look after buildings for someone else, clear figures and clear communication matter. You get a fixed quote, an agreed scope and a walk round at the end.
Signs you need fire stopping in Friern Barnet
Plenty of openings were simply never closed because they sat out of sight above a ceiling or inside a riser. They come to light during inspections, refits or when another trade lifts a tile.
Most enquiries start with one or more of the following:
- Non-fire-rated filler around services
- Open linear gaps along the top of fire-resisting walls
- Fire sealant pulled out of the opening
- Service penetrations left open after M&E works
At a healthcare site like Finchley Memorial Hospital, 1.1 miles south-west of Friern Barnet, new services through compartment walls are a constant, and each needs the specified seal.
Questions to ask before you book
- Their approach to joint depth and backing
- What site paperwork they can supply
- Do they follow the manufacturer’s priming guidance?
- What level of public liability insurance do they hold?
Towns and villages near Friern Barnet
Also in Friern Barnet
Honest limits
Not every problem is a sealant problem, and we’d rather tell you before you spend money. It won’t fix:
- Reviewing a building’s overall fire safety
- Openings that need collars, wraps, batts or boards rather than sealant
- Issuing fire ratings or certificates for seals
If you are not sure, just call the office on 01277 525 020 or send photos by email and we’ll give you a straight answer.
Joints and surfaces we work on
- Pipe penetrations
- Service gaps in risers
- Linear gaps at wall heads
- Joints between fire-resisting walls and floors
- Cable penetrations
- Small duct penetrations where the tested detail allows
Looking after the joints
Sealant joints are maintenance items, and how long they last depends on how they’re treated. We suggest:
- Make fire stopping part of every scope that crosses a fire-resisting wall
- Get seals inspected before ceilings and boxing close
- Check with the data sheet before painting over fire sealant
- Include service cupboards in routine inspections
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 using the same product.
A simple record of seal locations and products helps. When a new service goes through, everyone knows which product and detail to match.
On site: what to expect
Working in a building that stays open takes some planning. The work area is signed and kept contained, keep walkways clear and work section by section so the rest of the building stays in use. All of Greater London is in the ULEZ, and kerbside space in Friern Barnet 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 start with your penetration schedule, drawings or specification.
- We plan the sequence of floors, risers and voids with you.
- We compare every service penetration with its tested detail before sealing.
- Foam, ordinary sealant and debris come out first.
- The specified backing and sealant go in to depth and are finished neatly.
- We tell you about openings that need a different product.
Getting the site ready
- Send your site hours and access windows
- Move anything stored against the joints
- Tell staff and tenants when we’ll be in
Request a quote
Specifications, drawings and tender packages are welcome with any enquiry, and we’ll price against exactly what is specified. Smaller jobs need nothing more than photos and a few notes.
Advice
What sets the cost
We price every job individually. The main factors are:
- Which sealant the job calls for
- Quantities, in metres or numbers
- The size and state of each joint
- Location, for remote and island sites
Every site prices differently: joint size, product, access and site hours all play a part. A fixed quote follows once we understand the job.
Before you send an enquiry
A good diagnosis starts with the right details. Tell us:
- Photos of the joints, close up and from further back
- The site address and postcode
- Asbestos survey details if the building is older
- What the building is and how it’s used
We quote a fixed sum against the scope you give us, so you know the figure before anyone is on site. To start the process, call the office on 01277 525 020 or email drawings and photos.
Penetration seals near Friern Barnet
Six care or nursing homes sit less than 2 miles from Friern Barnet. Where new services have gone through compartment walls in a care setting, the gaps need the specified product. We install fire-rated sealant to the tested detail where it is specified. Every new tenant in a London building tends to bring new cabling, and with it new holes through compartment walls. Penetrations are sealed with the specified product, to its tested detail, under the building’s own permit rules.
Colleges such as Oak Hill College (1.9 miles north of Friern Barnet) add IT and services as courses change, and each new penetration through a fire-resisting wall needs sealing with the specified product. Shop fits on retail sites such as Friern Bridge Retail Park, under half a mile east of Friern Barnet, can bring new services through fire-resisting walls between units, to be sealed with the specified product.
Friern Barnet is about 2 miles north-east of Finchley, in Greater London. We send applicators to Friern Barnet for service penetrations, handled exactly as we handle every other area. Friern Barnet is one of 764 places in Greater London on our list for service penetrations. London is covered too, around 8 miles from Friern Barnet.
We cover the N11, N12, N10 and N20 postcode districts. Streets here include Martock Gardens, Shapwick Close and Radstock Close, and sites on any of them can send details for a fixed quote. Friern Barnet sits on or close to the A406 and B550. Sites close to Friern Barnet are covered too, including New Southgate (1 mile east), Brunswick Park (1 mile north), North Finchley (1 mile west), Arnos Grove (1 mile east) and Whetstone (1 mile north-west). Further afield, our area takes in London (8 miles south), City of Westminster (7 miles south), Marylebone (7 miles south), Kensington (8 miles south), St Pancras (6 miles south) and Shoreditch (7 miles south-east).
What’s near Friern Barnet
Locally, jobs take us to sites close to Francis Skaryna Belarusian Library and Museum, Friary Park and Friern Barnet School. There’s a railway station in Friern Barnet itself: New Southgate station. Nearby you will also find Francis Skaryna Belarusian Library and Museum (1.4 miles west) and Grand Arcade (1 mile west). For a walk, there’s Highgate Hill and Darland's Lake.