Fire-rated sealing and fire stopping in Dartmouth Park, Greater London
Looking for fire stopping in Dartmouth Park? Send us the details for a fixed quote, backed by a 12-month guarantee on the work.
- Seals that don’t match their tested detail
- Expanding foam used as fire stopping
- Service penetrations left open after M&E works
Fire stopping across Dartmouth Park
Share the site address and what’s failing, and we’ll reply with a fixed quote or arrange a visit.
Fire stopping for commercial buildings in Dartmouth Park
Opened ceilings and riser doors often reveal service openings nobody sealed. If a specification already covers those walls and floors, we can reseal to it, matching the product and detail it names. Where there isn’t one, the designer or fire engineer needs to set one first. If you are dealing with improvised or mixed-product fire seals and fire-stopping items raised at inspection or handover, we can put it right, whatever the surface. Sealant contractors, mastic applicators, sealant specialists: whatever the job title on the order, in Dartmouth Park it comes down to the same thing: the right product in a properly prepared joint.
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.
Guaranteed is the last step of every job. Our workmanship is backed for 12 months, and the quote explains what it covers.
- Place
- Dartmouth Park (NW5, N19, N7)
- Region
- Greater London
- Guarantee
- A 12-month guarantee
- Price
- Quoted before any work starts
- Phone
- 01277 525 020
- Page updated
- 3 November 2026
From enquiry to sign-off
Diagnose, treat, sign off: that’s the shape of every visit. We inspect the joints and confirm what’s in scope, then the work is carried out to the specified product and detail, and the job ends with a walk round and sign-off. For a job in Dartmouth Park, access comes first: booked loading, goods lifts, the building’s permit system and a spot to keep materials. Send the building rules and access times with your enquiry.
- We read the specification, drawings or penetration schedule you send and raise any questions before we price.
- Every penetration is compared with its detail: wall or floor type, service, gap size and depth.
- 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.
- Openings that need a collar, wrap, batt or other product are flagged to you rather than filled with sealant.
Preparing the site
- Flag any permit to work we’ll need
- Make sure the joints can be reached
- Share the asbestos register for older buildings
Ask for a quote
For a fixed quote, ring 01277 525 020 or use the quote form with the site address and an outline of the work. You can also send details through our quote form.
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Different surfaces, different methods
Masonry and concrete
Many seals are made in blockwork, brickwork or concrete slabs. Dust and debris are cleared from the opening, so the sealant and any backing sit properly.
Cables and cable bundles
New data and power cables are the most common breach we see. We reseal around them to the specified detail.
Owners, agents and contractors
Agents, factors and owners’ representatives all follow the same route: send the details, accept a fixed quote, and we carry out and guarantee the work. Keys, access and contacts can be agreed in advance.
Hospitality, education, healthcare, office and retail clients book us directly too. The work is planned around how the building runs, so the building keeps working while we do.
What affects the price in Dartmouth Park
We price every job individually. The things that drive the figure:
- Distance, for remote addresses
- Access and working height
- Backing rod, priming and other preparation
- Phasing around occupants
There’s no price list, because the scope varies so much from one building to the next. Call for a quote.
Before you send an enquiry
Diagnosis starts before we arrive. Let us know:
- The type of building and who uses it
- Access details, including height
- The asbestos register, for older buildings
- Drawings or a marked-up plan, if available
A handful of photos and a postcode is the fastest way to a quote. Upload them with the quote form, or call 01277 525 020 or email the details over if you’d rather talk the job through.
Aftercare for building managers
Cleaning and maintenance staff play a part too. Pass these on to them:
- Foam or ordinary sealant is never a fire-seal repair
- Leave fire sealant to cure fully before covering it
- Report damaged or disturbed seals as soon as they’re spotted
- Record which product was used where
During planned inspections, look at seals in risers, cupboards and voids. Watch for cracked sealant, new services with no seal and openings that have grown, and report them promptly.
Keep a register of where seals are and what they are made of. It tells the next contractor exactly what to reinstate, and it helps at inspections.
What sealant work can’t fix
A proper diagnosis includes knowing what sealant can’t do. We will tell you if the real problem is one of these:
- Reviewing a building’s overall fire safety
- Plastic pipes whose detail calls for a collar or wrap
- Walls or floors that aren’t fire-resisting to begin with
If you’re not sure, just give us a call on 01277 525 020 or email the details over and we will give you a straight answer before you book.
Where we work in Dartmouth Park
- Cable penetrations
- Small duct penetrations where the tested detail allows
- Linear gaps at wall heads
- Service gaps in risers
- Joints between fire-resisting walls and floors
- Pipe penetrations
Penetration seals near Dartmouth Park
In London buildings, frequent fit-outs and M&E changes are a common reason fire stopping gets breached. Where fire-rated sealant is specified, we install it to the tested detail under the building’s permit-to-work arrangements. The area within 2 miles of Dartmouth Park holds plenty of hotels. In hotels, bedroom and corridor walls are usually fire-resisting, so services added in a refit need sealing with the specified product.
On estates like Bush Industrial Estate (under half a mile east of Dartmouth Park), the wall between office and warehouse is often fire-resisting, and cables through it need the specified seal. In a retail centre such as O2 Centre, 1.8 miles south-west of Dartmouth Park, any fire-resisting wall between units that is crossed by new services needs sealing to the tested detail. Workshops and IT rooms at colleges like Working Men’s College (to the south-east of Dartmouth Park) are re-serviced often, leaving penetrations to seal.
Dartmouth Park is about 2 miles east of Hampstead, in Greater London. Any commercial site in Dartmouth Park is covered. 764 places across Greater London fall within our area, Dartmouth Park among them.
We cover the NW5, N19 and N7 postcode districts for service penetrations. We cover commercial and managed buildings on Hugo Road, Ward Road and Anson Road and the roads nearby. Nearby places we also cover include Lissenden Gardens (1 mile south-west), Tufnell Park (1 mile east), Gospel Oak (1 mile south-west), Upper Holloway (1 mile north-east) and Highgate (1 mile north). A short drive away, we cover London (5 miles south-east), City of Westminster (3 miles south), Marylebone (3 miles south), Kensington (5 miles south-west), St Pancras (3 miles south-east) and Shoreditch (4 miles south-east).
What’s near Dartmouth Park
Around Dartmouth Park, our work takes us to commercial buildings near The Dartmouth Arms, Whittington Park and Brookfield Primary School. You will also find Asanté Academy of Chinese Medicine (1.4 miles north) and Vaughan Williams Memorial Library (1.5 miles south). The closest station to Dartmouth Park is Gospel Oak station, roughly 0.5 miles south-west of the centre. Nearby you’ll also find O2 Centre (1.8 miles south-west) and Isokon Gallery (1 mile south-west). Green spaces nearby include Belsize Wood and Dartmouth Park Hill.
Nearby places to Dartmouth Park
What else we do in Dartmouth Park
FAQs: Dartmouth Park
Will you plan work around the academic year at somewhere like American University in London?
Yes, holiday working periods are the norm on campus jobs. We are CHAS accredited and a Constructionline member, and paperwork such as RAMS is confirmed with the quote.
Can you work in a London building with booked loading and goods-lift slots?
Yes. Inductions, permits and timed loading are routine for us in London. Say when the building is occupied and when it’s quiet, and we will plan accordingly.
What if there’s asbestos in the old mastic?
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.
How many days will you need on site?
The duration is planned around your programme and the access we are given. You’ll have an expected duration with the quote.
Will you write the fire-stopping specification?
No, we don’t design fire stopping. With the designer’s details in hand, we can price the sealant elements, and tell you if a detail needs another product.
Do the same rules apply to fire stopping in Scotland?
Scotland sets its own building regulations, with Technical Handbooks, and England uses Approved Document B. Wherever the site is, our work follows the specification and the tested detail.
How soon can the area be used again?
Curing time varies by product, and we confirm it on the day, and flag anything to keep off until it has cured.