
Fire-rated sealing and fire stopping in Holloway, Greater London
Need fire stopping in Holloway? It’s simple: send details, get a quote, we seal, guaranteed.
- Non-fire-rated filler around services
- Unsealed joints where partitions meet the slab
- Hidden openings found during inspections
Fire stopping for businesses in Holloway
Photos, a specification or a quick description of the joints is enough to start a fixed quote.
How we handle fire stopping in Holloway
A lot of fire-stopping work comes after M&E installation, a refit or a tenant fit-out. Each new cable, pipe or data route cut through a fire-resisting wall leaves an opening behind, often unnoticed. Those on your schedule are closed with the specified product. If you’re dealing with fire seals cut back for extra cables and never reinstated and snag lists that include open service penetrations, we can help, on pipe penetrations, linear gaps at wall heads and small duct penetrations where the tested detail allows alike. Whoever orders the work in Holloway, the brief is typically the same: a fixed quote, no surprises on site and a 12-month guarantee behind the result.
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.
We stand behind the joints we seal with a 12-month guarantee. It covers how we prepared and applied the sealant.
- Where
- Holloway (N7, N19, N4)
- Wider area
- Greater London
- Cover
- 12 months on every job
- Quotes
- A fixed quote before we start
- Call
- 01277 525 020
- Page updated
- 3 November 2026

When to call us in Holloway
Some seals fail because the wrong product went in: expanding foam or a general-purpose sealant pushed into a gap to tidy it. The opening looks sealed but has no fire test evidence behind it and has to be removed.
These are often picked up first by site or facilities staff:
- Improvised or mixed-product fire seals
- Openings left by services added after handover
- Hidden openings found during inspections
- Fire seals cut back for extra cables and never reinstated
Industrial units on estates such as Hannover Industrial Estate, 0.5 miles to the south of Holloway, often separate offices from warehouse space with fire-resisting walls, and new services through them need the specified seal.
Before you book anyone
- Is the sealant right for the movement and the substrate?
- What site paperwork they can supply
- What level of public liability insurance do they hold?
- How the joint faces will be prepared and primed
Diagnose, treat, sign off
Inspect, seal, sign off: that’s the shape of every visit. We inspect the joints and confirm what’s in scope, then we prepare and seal each joint with the specified product, and the job ends with a walk round and sign-off. Most London premises stay occupied while we are on site, so zones and timings are agreed with whoever manages the building. Areas are handed back as each section is finished.
- First we go through the drawings, schedule or specification for the seals and ask about anything unclear.
- 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.
- We apply the specified sealant to the depth and around the services as the detail shows.
- Openings that need a collar, wrap, batt or other product are flagged to you rather than filled with sealant.
What we need from you
- Explain the parking and delivery arrangements
- Have the specification and drawings to hand
- Let building users know which areas are affected
Ask for a quote
For a fixed quote, give us a call on 01277 525 020 or send details through our quote form, telling us the site location and the nature of the job. You can also send details through our quote form.
Advice
Other services in Holloway
Surface by surface
Plastic pipes
Waste and drainage pipes through floors are a frequent case. The detail decides whether sealant alone is enough, and we won’t substitute it for a specified collar.
Masonry and concrete
Openings through concrete vary from tidy cores to rough break-outs. The gap is measured at the widest point so we know it sits within the tested range, and any outside it are raised with you.
Fire stopping around Holloway: what changes locally
For England, the fire stopping of penetrations is dealt with in 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. What we install is set by the specification, and it goes in to the 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.
On a hospital site such as The Whittington Hospital (1.2 miles north-west of Holloway), fire-rated sealant goes in where the specification calls for it, with the work planned around the estates team’s permits. Campus buildings at universities such as American University in London, less than half a mile to the north-east of Holloway, see constant changes to data and services, and fire-rated sealant goes in around new penetrations where it is specified.
Holloway is about 2 miles north-west of Hoxton, in Greater London. Holloway sits inside our coverage, and jobs here get the same fixed quote and 12-month guarantee as anywhere else. We work across 764 places in Greater London, large and small.
Postcode districts covered here: N7, N19 and N4. If your site is on Penn Road, Lough Road and Tabley Road or close by, send details and we will quote for service penetrations. We also cover Nag's Head (1 mile north), Lower Holloway (1 mile south), Tufnell Park (1 mile west), Upper Holloway (1 mile north-west) and Barnsbury (1 mile south) for service penetrations. A short drive away, we cover London (4 miles south), City of Westminster (3 miles south-west), Marylebone (3 miles south-west), Kensington (5 miles south-west), Shoreditch (3 miles south-east) and Walthamstow (5 miles north-east).
Local landmarks in Holloway
We work on buildings around Vaughan Williams Memorial Library, Whittington Park and Beacon High, among other places. Nearby too are Musical Theatre Academy (0.8 miles south-east) and The Coronet pub (under half a mile south-east). For rail, the closest station is Drayton Park station, roughly 0.6 miles south-east. A little further out are Brunswick Centre (2.3 miles south) and Montfichet's Tower (3.1 miles south). Open spaces near Holloway include St. James's Park Lake and Dartmouth Park Hill.
After the work
After handover, a little attention goes a long way:
- Arrange inspection before areas are covered up
- Check risers and ceiling voids after each round of works
- Ask which product is in place before decorating
- Ask the designer to confirm details early on refits
Store the specified product details somewhere the next contractor can find them. Anyone resealing later needs to know which product and detail were used.
Keep a register of where seals are and what they are made of. It tells the next contractor exactly what to reinstate, which saves guesswork.
Honest limits
Before quoting, we check that sealant is the right answer. It isn’t the answer for:
- Designing or specifying fire stopping, which sits with the designer or fire engineer
- Fire doors, dampers or other fire safety equipment
- Signing off or certifying a building’s fire stopping
If in doubt, speak to us on 01277 525 020 or email drawings and photos and we will say what we think before you book.
Where we work in Holloway
- Pipe penetrations
- Joints between fire-resisting walls and floors
- Small duct penetrations where the tested detail allows
- Linear gaps at wall heads
- Cable penetrations
- Service gaps in risers
Questions about Holloway
Do you cover business parks and estates near Holloway, such as Hannover Industrial Estate?
Yes. Our area takes in Holloway and its surroundings, with estates and business parks such as Hannover Industrial Estate included. A few photos and the unit address let us price the work.
Can work at a site such as American University in London fit around teaching?
Yes. Tell us the term dates, vacation periods and access windows, and we’ll plan the work around them. Let us know which documents your site asks for, and we’ll confirm them alongside the quote.
Can one quote cover more than one building?
Yes. Multi-site work and planned programmes are a core part of the service, planned site by site to suit how each building is used.
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.
Is Holloway in your area?
Yes. We cover Holloway, and you can ring 01277 525 020 or send details through our quote form to get started.
Is BS 476 being phased out?
From 2 September 2029, Approved Document B in England drops its references to BS 476 classes. The European route, BS EN 13501-2, then applies. Product selection stays with your designer.
Can you seal any opening with fire-rated sealant?
No. A sealant’s evidence covers set services, gaps and wall or floor types. If an opening falls outside, it needs another solution.
Owners, agents and contractors
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’ll confirm with the quote.
CHAS accredited and a Constructionline member, we make supplier vetting simple. We’re fully insured, and our insurance certificate can go with the quote.