Fire stopping in Chalk Farm
Fire-rated and intumescent sealing of service penetrations and linear gaps throughout Chalk Farm and nearby, by CSCS-carded applicators. CHAS accredited and fully insured.
- Expanding foam used as fire stopping
- Old intumescent sealant that has split away
- Fire-stopping items raised at inspection or handover
Fire stopping for businesses in Chalk Farm
Send drawings, photos or a joint schedule, or tell us about the site, and we’ll come back with a fixed quote.
Fire stopping in Chalk Farm, done properly
We should be clear about what we do and don’t do. Deciding the specification sits with the designer, the fire engineer and building control. What we bring is careful installation of the specified sealant, to the maker’s guidance. The enquiries we see most involve seals that don’t match their tested detail and seals disturbed by maintenance and left open, on service gaps in risers, pipe penetrations and linear gaps at wall heads. For commercial sealant work in Chalk Farm, you deal with one contact from quote to sign-off, whether it’s one building or several.
Fit-outs and M&E works in London buildings often leave service penetrations open behind ceilings and in risers. If sealant is the specified product we fit it to its tested detail, and if the detail needs something else, you’ll hear it from us.
Work we carry out in Greater London comes with a 12-month guarantee. If an installation problem shows up, give us a call on 01277 525 020 or send photos by email and we’ll arrange a return visit.
- Where
- Chalk Farm (NW5, NW1, NW3)
- Wider area
- Greater London
- Cover
- 12 months on every job
- Price
- Quoted before any work starts
- Phone
- 01277 525 020
- Updated
- 3 November 2026
How the job changes 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.
Cables and cable bundles
New data and power cables are the most common breach we see. We reseal around them to the specified detail.
Towns and villages near Chalk Farm
What else we do in Chalk Farm
Maintenance after handover
For the best life from the joints:
- Include service cupboards in routine inspections
- Put resealing into every M&E and fit-out package
- File the specified details where the next contractor can find them
- Ask which product is in place before decorating
Give the sealant its full cure time before ceilings, boxing or decoration go over it. Not every fire-rated product can be painted, so check the product data first.
Write fire stopping into the scope of any work crossing a compartment wall or floor. That way the opening is sealed while the trade and access are still there.
When to bring in a specialist
For most general trades, sealant is a sideline. A specialist brings correct preparation, depth control with backing rod and a product suited to that particular joint.
For a quick touch-up, site staff may be fine, but anything bigger is another matter: a specialist works through quantities efficiently, leaves a consistent finish and backs it with a 12-month guarantee.
What sets the cost
What shapes the price:
- The product specified
- Access and working height
- Working within restricted access windows
- The size and state of each joint
Cost follows what’s involved: stripping out, preparation, sealing, access and phasing. Call for a fixed quote and we’ll explain how it’s made up.
Before you send an enquiry
There’s no need for a formal survey. These details are enough to start:
- Anything awkward about access or site hours
- The type of building and who uses it
- Clear photos of the problem areas
- Drawings or a marked-up plan, if available
Every job follows the same four steps: send details, get a quote, we seal, guaranteed. The first step is to phone 01277 525 020 or use the quote form with what you know.
How a job runs
A typical day starts with protection: masking tape along the joint edges and sheeting over anything nearby. The work itself typically takes a single visit for a short list of penetrations, or a phased programme for a whole building, and our waste is bagged and taken away as we go. All of Greater London is in the ULEZ, and kerbside space in Chalk Farm can be scarce. If there’s a loading bay, a car park or a permit we can use, tell us when you send details.
- We start with your penetration schedule, drawings or specification.
- We plan the sequence of floors, risers and voids with you.
- Each opening is checked for wall or floor type, service, gap and depth.
- Unsuitable material is removed and the opening cleaned first.
- Backing and fire-rated sealant are installed to the detail and tooled.
- We tell you about openings that need a different product.
What we need from you
- Send any specification or drawings in advance
- Explain the parking and delivery arrangements
- Point out any areas we must not close
Get a fixed quote
A handful of photos and a postcode is the fastest way to a quote. Send them through the quote form, or ring 01277 525 020 or send photos by email if you’d rather talk the job through.
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FAQs: Chalk Farm
Will you take on work at estates like Regis Road Business Park, close to Chalk Farm?
Yes. Estates, retail parks and business parks around Chalk Farm, Regis Road Business Park among them, are all within reach. 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 Chalk Farm?
Approved Document B loses its BS 476 references from 2 September 2029, and BS EN 13501-2 becomes the route, subject to transitional arrangements. Whichever applies, we install the specified product to its tested detail; the specification is for the designer to set.
When is resealing likely to be due?
It depends on movement, UV and weather, cleaning, traffic and the product. Sealant joints are maintenance items, so inspect them regularly.
What do you charge?
Every job gets its own fixed quote. For yours, call the office on 01277 525 020 or email us.
Do you seal on top of existing sealant?
No. Overlaying old sealant is a frequent cause of early failure, so it all comes out first.
Do you cover Chalk Farm?
Yes. We take on work across Chalk Farm, and the same phone number covers every area.
Does weather matter for sealant work?
It can, for external work. Sealant won’t bond properly to a wet or frosty joint, so we watch the forecast and rearrange outside work if we have to. Indoors, the weather is rarely a problem.
Building owners, agents and FMs in Chalk Farm
CHAS accredited and a Constructionline member, we are straightforward to vet for your supplier list. We’re fully insured, and our insurance certificate can go with the quote.
Housing associations and managing agents often need work done across blocks and communal areas. We phase the work so people keep access, with each stage agreed with your site contact.
Fire stopping in Chalk Farm: the local picture
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. Our part stays the same: the specified product, installed to its tested detail. London’s office and residential buildings are refitted constantly, and each round of cabling or pipework can leave open penetrations. Penetrations are sealed with the specified product, to its tested detail, under the building’s own permit rules.
In a retail centre such as O2 Centre, 1.3 miles west of Chalk Farm, any fire-resisting wall between units that is crossed by new services needs sealing to the tested detail. Theatres, wards and plant rooms at sites like Royal Free Hospital (0.9 miles north-west of Chalk Farm) all have compartment walls crossed by services. For an estates team at a campus like Regent's University London (1.2 miles south of Chalk Farm), summer M&E works are typically followed by a round of penetration sealing.
Chalk Farm is about 1 mile south-east of Hampstead, in Greater London. Any commercial site in Chalk Farm is covered. We work across 764 places in Greater London, large and small.
We take on service penetrations across the NW5, NW1 and NW3 postcode area, for business premises of every kind. We cover commercial and managed buildings on Eton Road, Oval Road and Regal Lane. Being close to the A5205, Chalk Farm is easy to get to with materials and equipment. Just outside Chalk Farm, we also work in Kentish Town (1 mile east), Primrose Hill (1 mile south-west), Haverstock (1 mile west), Belsize Park (1 mile west) and Camden Town (1 mile south-east). Bigger towns within reach include London (4 miles south-east), Kensington (4 miles south-west), Shoreditch (3 miles east), Walthamstow (6 miles north-east), Hoxton (3 miles east) and Whitechapel (4 miles south-east).
Around Chalk Farm
Locally, jobs take us to sites close to Primrose Hill, Cecil Sharp House and The Fiddlers Elbow Public House, among other places. You’ll also find Holy Trinity and Saint Silas CofE Primary School (under half a mile east) and North Bridge House School (0.5 miles south-east). There’s a railway station in Chalk Farm itself: Kentish Town West station. Well-known places in the area include Isokon Gallery (0.7 miles north-west) and O2 Centre (1.3 miles west). Open spaces near Chalk Farm include Primrose Hill and The Long Water.