New Barnet fire stopping
Our CSCS-carded applicators take on fire-rated and intumescent sealing of service penetrations and linear gaps in New Barnet and the surrounding area. Send details for a fixed quote.
- Builders’ foam or ordinary silicone in compartment walls
- Unsealed openings around new pipes and cables
- Unsealed penetrations discovered above suspended ceilings
Fire stopping for New Barnet sites
Share the site address and what’s failing, and we’ll reply with a fixed quote or arrange a visit.
How we handle fire stopping in New Barnet
Every service that crosses a compartment wall or floor leaves an opening, and that opening needs sealing to hold back fire and smoke. Our job is fitting fire-rated and intumescent sealant at those service penetrations, and along linear gaps, where it is the specified product. Each seal follows the manufacturer’s tested detail. The enquiries we see most involve unsealed joints where partitions meet the slab and fire seals cut back for extra cables and never reinstated, across joints between fire-resisting walls and floors, small duct penetrations where the tested detail allows and cable penetrations. Most enquiries from New Barnet 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.
In a London area such as New Barnet, buildings are refitted often, and every new cable, pipe or duct through a fire-resisting wall or floor leaves a gap. Where the specification names fire-rated sealant, it goes in exactly as the manufacturer’s test evidence shows for that wall or floor.
We stand behind the joints we seal: 12 months, guaranteed. It covers how we prepared and applied the sealant, and we come back if anything isn’t right.
- Where
- New Barnet (EN5, EN4, N20)
- Region
- Greater London
- Cover
- 12 months on our workmanship
- Price
- Quoted before any work starts
- Call
- 01277 525 020
- Page updated
- 3 November 2026
Diagnose, treat, sign off
Occupied buildings need a little choreography. The work area is signed and kept contained, with routes through the building left open and move on in phases so staff and visitors can carry on around us. For a job in New Barnet, access comes first. Send the building rules and access times with your enquiry.
- The specification and schedule come first, so we know which details apply.
- 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.
What we need from you
- Have the specification and drawings to hand
- Let building users know which areas are affected
- Agree which areas must stay open
Getting a fixed quote
Send us photographs, 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.
Read more
When to call us in New Barnet
A common fault is a product that was never fire-rated in the first place: 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.
Typical triggers for a call:
- Fire sealant pulled out of the opening
- Open linear gaps along the top of fire-resisting walls
- Builders’ foam or ordinary silicone in compartment walls
- Damaged fire seals in risers and voids
Shop fits in centres such as Spires Shopping Centre, 1.6 miles to the north-west of New Barnet, can bring new services through fire-resisting walls between units, which then need the specified seal.
What to look for in a quote
- Will failed sealant be removed rather than covered?
- What the guarantee covers, and for how long
- Whether primer will be used where the manufacturer specifies it
- Whether their applicators hold CSCS cards
FAQs: New Barnet
Will you take on work at estates like Hadley Manor Trading Estate, close to New Barnet?
Yes, sites like Hadley Manor Trading Estate are within our area, along with the rest of New Barnet. Send details of the unit and the work through our quote form for a quick quote.
How does the move away from BS 476 affect penetration seals in New Barnet?
Approved Document B loses its BS 476 references from 2 September 2029, and BS EN 13501-2 becomes the route, subject to transitional arrangements. Our part doesn’t change: the specified product, to its tested detail.
When can you be on site?
Mention the site’s hours and access windows in your enquiry, and we’ll schedule the work to suit. You can reach the office between 8am and 5pm, Monday to Friday.
Do you need to see the site first?
Photos, drawings or a schedule are often enough to quote. If the job needs a look first, we’ll arrange a visit before quoting.
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 if asbestos is suspected, work stops until it’s tested. We don’t remove asbestos-containing materials.
Is New Barnet in your area?
Yes. Sites across New Barnet are covered.
Do you guarantee your work?
Yes, for 12 months. If a joint fails because of how we installed it, we come back and put it right.
Towns and villages near New Barnet
Also in New Barnet
Site staff or a sealant specialist?
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, which is what makes a joint last.
Some joints are best left to specialists: for example fire-rated seals that must match a tested detail, trafficked floor joints and external movement joints. Getting these wrong typically costs more in the end than doing them right.
What affects the price in New Barnet
We price every job individually. The main factors are:
- How much there is to seal
- Travel to remote or island sites
- Specialist products, such as fire-rated or hygienic sealants
- Access and working height
The product called for affects the cost, as does the preparation each joint needs, from cutting out to priming and backing rod. Access, phasing and site requirements come into it too.
Details that help us quote
It doesn’t need to be a full survey. A few details are enough to get going:
- Clear photos of the problem areas
- Rough lengths or quantities, or drawings if you have them
- The postcode of the building
- What the building is and how it’s used
Quotes are fixed against the scope you send, so you know the figure before anyone is on site. To ask for one, give us a call on 01277 525 020 or email drawings and photos.
Maintenance after handover
Once the work is signed off, these steps help:
- Ask the designer to confirm details early on refits
- Treat an open penetration as a priority repair
- Arrange inspection before areas are covered up
- Make fire stopping part of every scope that crosses a fire-resisting wall
Give the sealant its full cure time before ceilings, boxing or decoration go over it. Some fire-rated sealants accept paint and some don’t, and the data sheet says which.
Regular walk-rounds of service areas are worth the time. Catching a damaged seal early keeps the fix small compared with dozens found at once.
Honest limits
A few problems need another trade or a different fix, and we say so rather than covering them up:
- Designing or specifying fire stopping, which sits with the designer or fire engineer
- Plastic pipes whose detail calls for a collar or wrap
- Fire risk assessments, a job for a competent assessor
Not sure which it is? You can phone 01277 525 020 or send details through our quote form and we will tell you honestly before you book.
What we seal
- Linear gaps at wall heads
- Cable penetrations
- Pipe penetrations
- Service gaps in risers
- Joints between fire-resisting walls and floors
- Small duct penetrations where the tested detail allows
Compartment walls and floors in New Barnet
In England, Approved Document B covers fire stopping of 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. We install whatever has been specified, to the product’s tested detail. London’s office and residential buildings are refitted constantly, and each round of cabling or pipework can leave open penetrations. Where fire-rated sealant is specified, we install it to the tested detail under the building’s permit-to-work arrangements.
For a site team at a college like Oak Hill College, which lies east of New Barnet, fire-rated sealing is best scheduled after the summer works. For an estates team at a campus like Middlesex University, 4.5 miles south-west of New Barnet, summer M&E works are usually followed by a round of penetration sealing.
New Barnet is about 1 mile east of Barnet, in Greater London. We cover commercial sites throughout New Barnet. We work across 764 places in Greater London, large and small. We also cover London, around 11 miles from New Barnet.
If you need fire stopping in EN5, EN4 and N20, the process matches everywhere else we work: send details, get a quote, we seal, guaranteed. If your site is on York Road, Park Road and Henry Road or close by, we can quote for service penetrations. Sites close to New Barnet are covered too, including Barnet (1 mile west), Cockfosters (1 mile north-east), East Barnet (1 mile south-east), Underhill (1 mile west) and Whetstone (1 mile south). Nearby towns on our patch include London (11 miles south), City of Westminster (9 miles south), Marylebone (9 miles south), Kensington (10 miles south), St Pancras (8 miles south) and Shoreditch (9 miles south-east).
What’s near New Barnet
Locally, jobs take us to sites close to Trent School Cockfosters, East Barnet School and The Alexandra pub. There’s a railway station in New Barnet itself: New Barnet station. Nearby you will also find Spires Shopping Centre (1.6 miles north-west) and Francis Skaryna Belarusian Library and Museum (2 miles south). For a walk, there’s Greenhill Gardens and Darland's Lake.