Bounds Green fire stopping
Fire-rated and intumescent sealing of service penetrations and linear gaps across Bounds Green, carried out by CSCS-carded applicators. Fully insured and CHAS accredited.
- Unsealed penetrations discovered above suspended ceilings
- Builders’ foam or ordinary silicone in compartment walls
- Improvised or mixed-product fire seals
Need fire stopping in Bounds Green?
Photos, a specification or a quick description of the joints is enough to start a fixed quote.
How we handle fire stopping in Bounds Green
The test standards are BS EN 1366-3 for penetration seals and BS EN 1366-4 for linear joints. A rating such as EI 60 only holds when the product is installed as it was tested. So our job is to reproduce that arrangement faithfully. We work on pipe penetrations, service gaps in risers and linear gaps at wall heads, and the usual reasons a site gets in touch are fire-rated sealant that has cracked or shrunk back and hidden openings found during inspections. A single leaking joint is often how a building in Bounds Green first comes to us: we look at the rest while we are there and tell you what we find.
After a fit-out or new cabling in a London building, risers and ceiling voids are where open service gaps tend to be found. Fire-rated sealant goes in where it’s the specified item; where a collar, wrap or batt is called for instead, we flag it.
Our workmanship is guaranteed for 12 months, in Bounds Green as everywhere else we work. If our installation lets you down in that time, we return and fix it.
- Location
- Bounds Green (N22, N11, N13)
- Wider area
- Greater London
- Guarantee
- A 12-month guarantee
- Quotes
- A fixed quote before we start
- Phone
- 01277 525 020
- Updated
- 3 November 2026
Our process
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. 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.
- Every penetration is compared with its detail: wall or floor type, service, gap size and depth.
- Anything that doesn’t belong in the opening, such as expanding foam or general-purpose filler, is removed.
- We fit the backing the detail asks for, to the stated depth.
- 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.
What we need from you
- Agree which areas must stay open
- Explain the parking and delivery arrangements
- Share your working hours and any access restrictions
Getting a fixed quote
The quickest route to a quote is a few photographs and the site postcode. Upload them with the quote form, or give us a call on 01277 525 020 or email us to discuss it first.
Read more
Leave it or put it right?
A seal that doesn’t match its tested detail gives false comfort. The fix is to remove it and reinstall to the detail, and doing it once, properly, is cheaper. In a London building, a failed joint rarely affects only one party. Dealing with it early is simpler for everyone.
The work involved drives the cost: stripping out, preparation, sealing, access and phasing. Call for a fixed quote and we will explain how it’s made up.
Why appoint us
- Failed material removed, not covered up
- One number for every site we cover
- Public liability insurance in place
- CSCS-carded applicators
See what affects the cost and our accreditations and insurance.
How the quote is worked out
There’s no standard rate for sealant work, because every site is different. What we look at:
- Induction, permit and paperwork requirements
- The total length or number of joints
- Phasing around occupants
- Joint width, depth and condition
Whether it’s a single area or a whole estate, the same things set the price: what’s in scope, how we reach it, what’s specified and when it needs doing. Call for a quote and we will put a fixed figure on it.
What we need to price the job
The more we know, the firmer the quote. Helpful details to send:
- Whether the building will be occupied during the work
- The asbestos register, for older buildings
- The site address and postcode
- Drawings or a marked-up plan, if available
Photos, drawings or a schedule of the joints and a fixed quote comes back to you. If the job needs a look first, we will arrange a site visit.
Fire-rated sealing for Bounds Green buildings
Fire stopping of openings and penetrations in England falls under Approved Document B. 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. With tenants changing and fit-outs following, London buildings see service routes altered again and again. Where fire-rated sealant is specified, we install it to the tested detail under the building’s permit-to-work arrangements.
Refits at places like Friern Bridge Retail Park, 0.9 miles north-west of Bounds Green, often reroute services through walls between units. Residences at universities like American University in London, 3.2 miles south of Bounds Green, have compartment walls that must be resealed whenever services change. Hotels such as Roseview Hotel (to the south-west of Bounds Green) rely on fire-resisting walls between bedrooms and corridors, and refits that add services leave penetrations to seal where fire-rated sealant is specified.
Bounds Green is about 2 miles east of Finchley, in Greater London. Any commercial site in Bounds Green is covered. 764 places across Greater London fall within our area, including Bounds Green. Sites around London have their own page, roughly 8 miles from Bounds Green.
Postcode districts covered here: N22, N11 and N13. Streets here include Oak Lane, York Road and Park Road. With the A109 nearby, Bounds Green is easy to get to with materials and equipment. We also cover Bowes Park (1 mile south-east), Arnos Grove (1 mile north), New Southgate (1 mile north-west), Oakthorpe Park (1 mile north-east) and Palmers Green (1 mile north-east) for service penetrations. Bigger towns within reach include London (8 miles south), City of Westminster (6 miles south), Marylebone (6 miles south), Kensington (8 miles south-west), St Pancras (6 miles south) and Shoreditch (6 miles south).
Local landmarks in Bounds Green
In Bounds Green, that means premises near Ming-Ai, O. R. Tambo Recreation Ground and The Springfield pub. Bounds Green has its own railway station: Bowes Park station. Nearby you’ll also find Broomfield House Museum (0.8 miles north-east) and Greentrees Hospital (1.1 miles east). Open spaces near Bounds Green include Glebelands Local Nature Reserve and Darland's Lake.
Surface by surface
Linear joints
Joints at the top of partitions may need to move as the slab above deflects. The specified product and backing for that movement are what goes in, along the full length of the run.
Plastic pipes
Plastic pipes soften and collapse in a fire. Some intumescent sealants are tested on smaller plastic pipes, though larger ones normally call for a collar or wrap. We confirm material and size first and tell you if sealant isn’t the right product.
Looking after the joints
Sealant joints are maintenance items, and their life depends on movement, exposure, cleaning and use. We suggest:
- Ask the designer to confirm details early on refits
- Get seals inspected before ceilings and boxing close
- Flag new cables with no seal around them
- Check risers and ceiling voids after each round of works
Keep the product data and installation details with the building’s fire safety information. It makes later repairs much easier to match.
Specify fire stopping early on refits, not as an afterthought. The designer can then choose details that suit the services planned.
Questions about Bounds Green
Can you work in a care home near Bounds Green with residents in?
Yes. We agree rooms and times with the manager and work a few areas at a time. Noise and disruption are kept to a minimum.
Do you work in London buildings with loading restrictions?
Yes. Inductions, permits and timed loading are routine for us in London. The building manager’s rules go straight into our method. All of Greater London is inside the ULEZ, and our planning allows for it
How much does the work cost?
Each job is quoted on its own details. For yours, speak to us on 01277 525 020 or send photos by email.
Do you have public liability insurance?
Yes. Our insurance certificate can be sent alongside the quote.
Do you guarantee your work?
Yes. Workmanship is guaranteed for 12 months.
What if there’s asbestos in the old mastic?
The duty to manage asbestos sits with the building’s dutyholder, so for older buildings we ask for the asbestos register first. Work pauses if suspect material is found, until it has been tested.
Who decides which product is used?
Where there’s a specification, we use the product it names. If not, we choose for the movement, the surfaces and the conditions, in line with the manufacturer’s guidance.
What sealant work can’t fix
Our job is the joint, not everything around it. On its own, sealant can’t deal with:
- Fire risk assessments, a job for a competent assessor
- Large openings beyond what any sealant detail covers
- Deciding what a wall or floor needs, which belongs to the designer
If you are not sure, just ring 01277 525 020 or email the details over and we will give you a straight answer before you book.
What we seal
- Linear gaps at wall heads
- Pipe penetrations
- Service gaps in risers
- Joints between fire-resisting walls and floors
- Cable penetrations
- Small duct penetrations where the tested detail allows