Fire stopping in Smithfield
Need fire stopping in Smithfield? It’s simple: send details, get a quote, we seal, guaranteed.
- Unsealed joints where partitions meet the slab
- Damaged fire seals in risers and voids
- Openings found when ceilings come down for a refit
Fire stopping for Smithfield sites
Send drawings, photos or a joint schedule, or tell us about the site, and we’ll come back with a fixed quote.
Fire stopping for commercial buildings in Smithfield
Every service that crosses a compartment wall or floor leaves an opening, and that opening needs sealing to hold back fire and smoke. Our part is installing fire-rated and intumescent sealant at those openings and along linear gaps, where the specification calls for it. We work to the product’s tested detail for every seal. Most enquiries involve hidden openings found during inspections and snag lists that include open service penetrations, across pipe penetrations, joints between fire-resisting walls and floors and cable penetrations. A single leaking joint is often how a building in Smithfield first comes to us: we look at the rest while we are there and tell you what we find.
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
- Smithfield (EC1V, EC1P, EC1R)
- Region
- City of London
- Cover
- A 12-month guarantee
- Price
- Fixed quote, scope in writing
- Call
- 01277 525 020
- Page updated
- 3 November 2026
Smithfield: questions and answers
Will you plan work around the academic year at somewhere like Queen Mary's University West Smithfield Campus?
Yes, holiday working periods are the norm on campus jobs. Tell us which site documents you need, such as RAMS, our insurance certificate or CSCS details, and they’re confirmed with the quote.
What happens to BS 476 references for fire stopping in Smithfield?
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.
What happens if old sealant might contain asbestos?
Some older mastics, especially in pre-2000 buildings, can contain asbestos. Before we disturb old sealant in an older building, we ask to see the asbestos register or survey, and work stops until any suspect material has been tested. We don’t remove asbestos-containing materials.
Will your applicators have CSCS cards?
Yes. Our applicators hold CSCS cards.
Is Smithfield in your area?
Yes. Smithfield falls within our area, and the simplest way to start is to ring 01277 525 020 or email the details over.
Can the sealant be colour-matched?
It depends on the product. Some ranges offer many colours, others very few, so we’ll confirm the colours available for the specified product with the quote.
How much does the work cost?
It depends on the job: the volume of work, the access, the specified product and how it’s phased. Call for a fixed quote and we’ll price it properly.
On site: what to expect
Where the site stays busy, the work is phased so only one area is out of use at a time. Each section is protected, cleaned back and sealed, then handed back before we move to the next. 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 and ask about anything unclear.
- On site, each opening is checked against the tested detail it is meant to follow.
- Unsuitable fillers and loose debris are taken out of each opening.
- Mineral wool or other backing goes in wherever the detail asks.
- 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.
Before we start on site
- Point out any areas we must not close
- Tell us what induction or permit system the site runs
- Have the specification and drawings to hand
Request a quote
We quote a fixed sum against the scope you give us, so you know the figure before anyone is on site. To ask for one, phone 01277 525 020 or send details through our quote form.
Read more
How the job changes by surface
Cables and cable bundles
Single cables and small bundles are often within a fire-rated sealant’s tested detail. The detail limits bundle size and the gaps between and around cables, so we check before sealing.
Drylining partitions
Holes in board are often cut larger than needed. An oversized hole may be outside the sealant’s range and we will tell you what the detail says instead.
Doing it in-house
The visible bead is only part of the job. Correct depth, the right primer and a sealant matched to the movement are where general trades tend to cut corners.
Using site staff can make sense for a small touch-up, but larger jobs are different: a specialist works through quantities efficiently, leaves a consistent finish and backs it with a 12-month guarantee.
Also near Smithfield
Also in Smithfield
Compartment walls and floors in Smithfield
A 2-mile radius around Smithfield takes in plenty of hotels. Hotels are divided into compartments, and refurbishments that add pipes and cables through bedroom and corridor walls leave gaps to close. Three care or nursing homes sit less than 2 miles from Smithfield. Care settings depend on compartmentation, so service penetrations made during maintenance or refurbishment need sealing with the specified product.
At a healthcare site like St Bartholomew's Hospital, which lies south-east of Smithfield, new services through compartment walls are a constant, and each needs the specified seal. For a unit at a site such as Grand Vitesse Industrial Estate, which lies south of Smithfield, new power or data runs between office and warehouse can breach a compartment wall. For a site team at a college like The Royal College of Radiologists (0.7 miles west of Smithfield), fire-rated sealing is best scheduled after the summer works.
Smithfield is about 1 mile north of London, in City of London. Our applicators travel to Smithfield for work on service penetrations, handled exactly as we handle every other area. Smithfield is one of 7 places we cover in City of London for service penetrations.
Postcode districts covered here: EC1V, EC1P and EC1R. Among the streets we cover are Oat Lane, Shoe Lane and Long Lane, and sites on any of them can send details for a fixed quote. Main routes into Smithfield include the A1 and A4. We also cover Farringdon (1 mile north), Blackfriars (1 mile south), Holborn (1 mile west), Temple Bar (1 mile south-west) and Clerkenwell (1 mile north).
Around Smithfield
Locally, jobs take us to sites close to Oriole pub, London Nautical School and St Alban's Church of England Primary School, among other places. Also close by are St Mary-at-Hill (1 mile south-east), Barts Health Archives (under half a mile south-east) and Postman's Park (less than half a mile south-east). There’s a railway station in Smithfield itself: Farringdon station. Other landmarks nearby include Finsbury Health Centre (0.5 miles north-west) and Postal Museum (under half a mile south-east). The countryside around Smithfield includes St. James's Park Lake and Ludgate Hill.
Leave it or put it right?
Inspections and handover checks often pick up fire stopping. Finding unsealed or improvised openings late can hold up a programme, so earlier action pays back. Getting scaffold, permits or access booked in Smithfield takes effort, so while access is arranged it pays to renew all failing joints, not just the worst.
Quantities, awkward access and phased working all shape the price. So do site requirements such as inductions and permits.
Why appoint us
- Workmanship guaranteed for 12 months
- Work carried out by CSCS-carded applicators
- One phone line for London, the South East and Scotland
- A Constructionline member, so easy to vet
Take a look at how commercial sealant jobs are priced or how we’re accredited.
Keeping the joints sound
After handover, a little attention goes a long way:
- Include service cupboards in routine inspections
- Keep product data and details in the fire safety file
- Have penetrations checked while they can still be seen
- Leave fire sealant to cure fully before covering it
After the work, brief anyone else working in the area that the openings are now sealed. Any seal cut back for a new service needs reinstating to its tested detail, by someone who knows the system.
Looking at service areas on a regular cycle pays off. Catching a damaged seal early keeps the fix small.
Cost factors for service penetrations
A fixed quote reflects the actual work. It takes account of:
- Removal of failed or old sealant
- Any access equipment needed
- Joint width, depth and condition
- Location, for remote and island sites
Every site prices differently: the joint sizes, the specified product, access and working hours each have a bearing. Send the details and a fixed figure follows.
What to include in your enquiry
To price the job accurately, we need to understand the site. Useful things to include:
- The type of building and who uses it
- Rough lengths or quantities, or drawings if you have them
- Any specification or named product
- The postcode of the building
Send details, get a quote, we seal, guaranteed: that’s how every job runs. To take the first step, give us a call on 01277 525 020 or email us.