Fire stopping in Lower Holloway
Fire-rated and intumescent sealing of service penetrations and linear gaps in Lower Holloway. CHAS accredited and fully insured, with a 12-month guarantee.
- Unsealed openings around new pipes and cables
- Old intumescent sealant that has split away
- Seals disturbed by maintenance and left open
Fire stopping in Lower Holloway
Share the site address and what’s failing, and we’ll reply with a fixed quote or arrange a visit.
Cost factors for service penetrations
To price the job, we consider:
- Removal of failed or old sealant
- How accessible the joints are
- Working within restricted access windows
- Site requirements such as inductions and permits
Cost follows what’s involved: removing old material, preparing the joints, the product, the access and how the work is phased. Call for a quote.
Before you send an enquiry
Good information means a firmer quote. Helpful details to send:
- Rough lengths or quantities, or drawings if you have them
- Anything awkward about access or site hours
- Specification clauses that apply
- A wide shot and a close-up of the area
If there’s a specification, drawings or a tender package, send it with your enquiry, and we’ll price the work to it. For smaller jobs, photographs and a description will do.
Fire stopping in Lower Holloway
A fire-rated sealant is only one part of a tested system: its test evidence covers one product in one kind of wall or floor, with set services, gaps, depths and backing. Before we seal anything, we check the opening against the detail it is meant to follow, and raise it with you if it falls outside. We work on linear gaps at wall heads, pipe penetrations and small duct penetrations where the tested detail allows, and what we’re called in for most is fire-stopping items raised at inspection or handover and seals disturbed by maintenance and left open. A specialist sealant contractor works differently from a general builder: on jobs in Lower Holloway, preparation and product choice get the time they need.
London has many occupied offices, blocks and mixed-use buildings where services are added and rerouted all the time. Where the specification names fire-rated sealant, it goes in exactly as the manufacturer’s test evidence shows for that wall or floor.
Every job ends the same way: guaranteed. You get a 12-month guarantee on our workmanship, and we explain exactly what that covers when we quote.
- Place
- Lower Holloway (N7, N1, N5)
- Wider area
- Greater London
- Guarantee
- A 12-month guarantee
- Price
- Quoted before any work starts
- Call
- 01277 525 020
- Page updated
- 3 November 2026
Diagnose, treat, sign off
Where the site stays busy, the work is phased so only one area is out of use at a time. Each area is protected, prepared and sealed before the next one starts. In Lower Holloway, most buildings stay in use during the work, so we agree zones and timings with the building or facilities manager. Phased work keeps the rest of the building in use.
- We ask for the product and detail your designer has specified.
- We sort the openings by the detail each one needs.
- Improvised fillers and failed sealant are removed.
- Where the detail needs backing, it goes in at the stated depth.
- Fire-rated or intumescent sealant goes in around the services and is tooled off.
- Completed areas are checked with you, with the records agreed when we quoted.
Before we start on site
- Tell us what induction or permit system the site runs
- Confirm the product named in the specification
- Point out parking and an unloading spot
Get a fixed quote
Photos, drawings or a schedule of the joints are often enough for a fixed quote. If the job needs a look first, we will arrange a site visit.
Read more
When it isn’t the sealant
Part of a good diagnosis is knowing where sealant stops. You will hear from us if the cause turns out to be one of these:
- Walls or floors that aren’t fire-resisting to begin with
- Plastic pipes whose detail calls for a collar or wrap
- Reviewing a building’s overall fire safety
Not sure which it is? You can ring 01277 525 020 or email a schedule or drawings and we’ll tell you honestly before you book.
What we seal
- Joints between fire-resisting walls and floors
- Small duct penetrations where the tested detail allows
- Service gaps in risers
- Linear gaps at wall heads
- Pipe penetrations
- Cable penetrations
Your questions answered
Can you take on a job at a hospital such as St. Pancras Hospital?
Yes, healthcare and care buildings are part of our work. Each area is agreed with the ward or department and the estates team in advance.
Can you work around term dates at a campus such as London Metropolitan University?
Yes. Tell us the term dates, vacation periods and access windows, and we will plan the work around them. Any paperwork you need, from RAMS to our insurance certificate and CSCS details, is confirmed with the quote.
Do you hold third-party fire-stopping installer certification?
No. We don’t hold a third-party fire-stopping installer certificate. We are CHAS accredited and a Constructionline member, and our applicators are CSCS-carded. If your contract requires third-party installer certification, we are not the right fit for that package.
Do you take on multi-site work?
Yes. A group of buildings can go on one quote, and you deal with one contact throughout across South East England, Greater London and Scotland.
Will you just go over the old sealant?
No. We cut the old material out and clean the joint back before sealing, because fresh silicone will not bond with aged silicone.
What about RAMS and site documents?
Tell us what site paperwork you need (RAMS, insurance certificate, CSCS details) and we will confirm with the quote.
Do you guarantee your work?
Yes. It runs for twelve months and covers how we prepared and sealed the joints, though not damage or work by other trades.
Nearby places to Lower Holloway
Also in Lower Holloway
Commercial clients in Lower Holloway
Hotels, schools, healthcare sites, offices and retail units come to us directly as well. We plan around the way the building is used, so the building keeps working while we do.
Facilities managers want contractors who arrive with the paperwork sorted. Let us know the documents you need (RAMS, insurance certificate, CSCS details) and we will confirm them with the quote.
Should maintenance staff do it?
Paperwork matters too. Many sites expect CSCS cards, RAMS and proof of insurance, and we will confirm the paperwork you need with the quote.
Redoing a failed joint usually costs more than getting it right at the outset, because the whole bead must be removed and the faces cleaned back again. For that reason, many FMs and contractors use a sealant specialist from the outset.
Fire stopping in Lower Holloway: the local picture
The area within 2 miles of Lower Holloway holds a good number of hotels. Hotels are divided into compartments, and refurbishments that add pipes and cables through bedroom and corridor walls leave gaps to close. With tenants changing and fit-outs following, London buildings see service routes altered again and again. We seal to the specification and the product’s tested detail, working within the building’s permits.
Large healthcare estates like St. Pancras Hospital, 1.1 miles to the south-west of Lower Holloway, change their services often, so penetration seals are worth checking after M&E work. Colleges such as City and Islington College (to the north of Lower Holloway) add IT and services as courses change, and each new penetration through a fire-resisting wall needs sealing with the specified product. Campus buildings at universities such as London Metropolitan University, under half a mile north-east of Lower Holloway, see constant changes to data and services, and fire-rated sealant goes in around new penetrations where it is specified.
Lower Holloway is about 2 miles north of St Pancras, in Greater London. Businesses, contractors and managing agents in Lower Holloway can call on us for service penetrations, as part of our coverage of Greater London. Across Greater London, 764 places are covered, including Lower Holloway.
Business premises anywhere in N7, N1 and N5 are within our area. Streets here include Penn Road, Cliff Road and Lough Road. Being close to the A5203, Lower Holloway is straightforward for us to reach. We also cover Barnsbury (1 mile south), Holloway (1 mile north), Nag's Head (1 mile north), Tufnell Park (1 mile north-west) and Islington (1 mile south-east) 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), Walthamstow (5 miles north-east) and Whitechapel (3 miles south-east).
What’s near Lower Holloway
In Lower Holloway, that means premises near St Mary Magdalene Gardens, Musical Theatre Academy and St Mary Magdalene Academy and the streets around them. You’ll also find Vaughan Williams Memorial Library (1.6 miles south-west) and The Lamb Tavern Public House (under half a mile west). The nearest railway station is Caledonian Road & Barnsbury station, roughly 0.5 miles south. Nearby you’ll also find Arsenal Football Club Museum (0.6 miles north-east) and Montfichet's Tower (2.6 miles south). For a walk, there’s Dartmouth Park Hill and Barnsbury Wood.
Keeping the joints sound
Cleaning and maintenance staff play a part too. Pass these on to them:
- Look above ceilings when tiles are lifted for other jobs
- Get seals inspected before ceilings and boxing close
- Ask which product is in place before decorating
- Keep general-purpose fillers away from compartment walls
Add risers, plant rooms and ceiling voids to routine fire-stopping checks. Watch for cracked sealant, new services with no seal and openings that have grown and get them dealt with.
A simple record of seal locations and products helps. It tells the next contractor exactly what to reinstate, and it helps at inspections.