The Mastic Doctor team standing beside their branded vans outside an office building
Greater London · England

Fire Stopping in Tufnell Park

Need fire stopping in Tufnell Park? It’s simple: send details, get a quote, we seal, guaranteed.

  • Open linear gaps along the top of fire-resisting walls
  • Penetration schedules that need working through
  • Non-fire-rated filler around services
1
Send details
Drawings, photos, a joint schedule or a site visit.
2
Get a quote
Scope agreed and priced before anything starts.
3
We seal
The right sealant, to the right depth, neatly finished.
4
Guaranteed
Signed off, with 12 months’ guarantee.
South East, London & Scotland
CHAS accredited
£5m public liability

Fire stopping for businesses in Tufnell Park

Send drawings, photos or a joint schedule, or tell us about the site, and we’ll come back with a fixed quote.

How we handle fire stopping in Tufnell Park

Most of our fire stopping work happens after the building is up. New cable runs, replaced pipework and extra data routes all punch holes in compartment walls, often unnoticed. Those on your schedule are closed with the specified product. If you’re dealing with old intumescent sealant that has split away and non-fire-rated filler around services, we can help, on joints between fire-resisting walls and floors, service gaps in risers and cable penetrations alike. A specialist sealant contractor works differently from a general builder: in Tufnell Park, that means joint design, primers and backing rod as standard.

Taller residential buildings in London may fall under the Building Safety Act’s higher-risk regime, where fire-stopping records get close attention. We install what the designer or fire engineer has specified, and if you need records of the work, tell us and we’ll confirm with the quote.

Whoever the client is, the cover is the same: twelve months on the work we carried out. Faults in the structure, damage and other trades’ work fall outside it, and we say so plainly.

Mastic Doctor team members lined up next to their branded vans outside an office building
Where
Tufnell Park (NW5, N19, N7)
Region
Greater London
Guarantee
A 12-month guarantee
Quote
Fixed quote, scope in writing
Telephone
01277 525 020
Last updated
3 November 2026

How the job changes by surface

Masonry and concrete

Many seals are made in blockwork, brickwork or concrete slabs. Dust and loose debris are cleared out of the opening.

Cables and cable bundles

New data and power cables are the most common breach we see. We reseal around them to the specified detail.

What we are called out for in Tufnell Park

Openings in fire-resisting walls typically appear when services are added or changed. A new cable pulled by an electrician, a pipe rerouted by a plumber or a data run drilled through a riser leaves an opening that nobody returns to. Across several fit-outs, the openings add up.

Common reasons buildings call us in:

  • Fire seals cut back for extra cables and never reinstated
  • Hidden openings found during inspections
  • Service penetrations left open after M&E works
  • Head-of-wall gaps with no fire seal

Campus buildings at universities such as American University in London (to the east of Tufnell Park) see constant changes to data and services, and fire-rated sealant goes in around new penetrations where it is specified.

Comparing quotes

  • The terms of the workmanship guarantee
  • Will failed sealant be removed rather than covered?
  • Can the work be phased to keep areas open?
  • Whether their applicators hold CSCS cards

How to choose a sealant contractor

Aftercare for building managers

Keep the joints in good shape with a few simple steps:

  • Settle who seals which penetrations at the start of a project
  • Report damaged or disturbed seals as soon as they’re spotted
  • Get seals inspected before ceilings and boxing close
  • Ask which product is in place before decorating

Keep the product data and installation details with the building’s fire safety information. It makes later repairs much easier to match.

Make reporting new openings part of every permit to work in service areas. Small habits like this stop openings building up.

Why it’s worth doing now in Tufnell Park

An open or wrongly sealed service penetration lets fire and smoke reach the next compartment much sooner than the building was designed for. Putting it right is usually a modest job when the openings are accessible. Wait until ceilings close or areas are occupied and the same work becomes harder to reach. Repeat call-outs disrupt occupied London buildings, so a proper job first time, with the old sealant fully removed, is worth it.

The product called for affects the cost, as does the preparation each joint needs, such as cutting out, priming or new backing rod. Access, phasing and site rules also count.

What you get with us

  • A fixed quote before work starts
  • A Constructionline member, so easy to vet
  • Fully insured
  • Products installed to the manufacturer’s instructions

Read what affects the cost and our accreditations.

What we can’t put right

Being straight saves everyone time. Fresh joints won’t solve:

  • Openings that need collars, wraps, batts or boards rather than sealant
  • Deciding what a wall or floor needs, which belongs to the designer
  • Reviewing a building’s overall fire safety

Not sure which it is? You can call the office on 01277 525 020 or email the details over and we will tell you honestly.

What we seal

  • Service gaps in risers
  • Linear gaps at wall heads
  • Small duct penetrations where the tested detail allows
  • Joints between fire-resisting walls and floors
  • Cable penetrations
  • Pipe penetrations

Our process

Our CSCS-carded applicators arrive with the sealants, primers and backing rod the job calls for. Joint faces are cleaned back to sound, dry surfaces, primer goes on where the manufacturer specifies it, and the sealant is tooled off neatly. In Tufnell Park, most buildings stay in use during the work, so zones and timings are agreed with whoever manages the building. Areas are handed back as each section is finished.

  1. First we go through the drawings, schedule or specification for the seals.
  2. Every penetration is compared with its detail: wall or floor type, service, gap size and depth.
  3. Unsuitable fillers and loose debris are taken out of each opening.
  4. We fit the backing the detail asks for, to the stated depth.
  5. We apply the specified sealant to the depth and around the services as the detail shows.
  6. If an opening needs something other than sealant, we tell you instead of improvising.

Before we start on site

  • Send asbestos survey details if the building is pre-2000
  • Arrange parking or a loading space
  • Clear stock, furniture or equipment away from the joints

Get a fixed quote

The quickest route to a quote is a few photos and the site postcode. Send them through the quote form, or call the office on 01277 525 020 or email us to discuss it first.

Get a quick quote

Related advice

Tufnell Park: questions and answers

Can you work around term dates at a campus such as American University in London?

Yes. We plan campus work around teaching, exams and residence turnarounds. Tell us which site documents you need, such as RAMS, our insurance certificate or CSCS details, and they’re confirmed with the quote.

Do you seal service penetrations in hotels around Tufnell Park?

Yes, where the specification calls for fire-rated sealant. It goes in to the manufacturer’s tested detail for the wall or floor and the services passing through, and we will tell you if the detail calls for a collar, wrap or batt instead.

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 quote.

How long does a typical visit take?

The duration is planned around your programme and the access we are given. We will give you an estimate of time on site when we quote.

Do you guarantee your work?

Yes. The 12-month guarantee covers our preparation and application, but not damage, misuse or other trades’ work.

What hours do you work?

The office is staffed Monday to Friday, from 8am until 5pm. Tell us your site hours and access windows and the work will be fitted around them.

Can you work to our specification?

Yes. Send it with your enquiry, and the quote will be based on it.

Compartments and services around Tufnell Park

Tufnell Park has a good number of hotels close by, all within 2 miles. Hotels are divided into compartments, and refurbishments that add pipes and cables through bedroom and corridor walls leave gaps to close. Approved Document B is the English guidance that covers fire stopping around openings and penetrations. The national BS 476 classes are due to drop out of it from 2 September 2029, leaving the European BS EN 13501-2 route, subject to transitional arrangements. Either way, we install the specified product to its tested detail.

For a unit at a site such as Bush Industrial Estate, less than half a mile to the north of Tufnell Park, new power or data runs between office and warehouse can breach a compartment wall. For a unit at a centre such as Arena Shopping Park, 2.1 miles to the north-east of Tufnell Park, penetration seals are worth checking after each shop fit.

Tufnell Park is about 2 miles west of Highbury, in Greater London. Looking for fire stopping in Tufnell Park? We can help. Across Greater London, 764 places are covered, Tufnell Park among them.

Work on service penetrations is covered throughout NW5, N19 and N7, whatever the building. Buildings on Hugo Road, Ward Road and Anson Road are within our area. Nearby places we also cover include Dartmouth Park (1 mile west), Upper Holloway (1 mile north), Gospel Oak (1 mile west), Lissenden Gardens (1 mile west) and Holloway (1 mile east) for service penetrations. Bigger towns within reach include London (4 miles south-east), City of Westminster (3 miles south), Marylebone (3 miles south), Kensington (5 miles south-west), Shoreditch (3 miles south-east) and Walthamstow (5 miles north-east).

Around Tufnell Park

We work on buildings around Musical Theatre Academy, The Boston Arms Public House and Vaughan Williams Memorial Library, among other places. Nearby too are Acland Burghley School (under half a mile west) and Whittington Park (under half a mile north-east). Tufnell Park’s nearest station is Upper Holloway station, roughly 0.5 miles north-east. Well-known places in the area include Royal Northern Hospital (0.5 miles north-east) and Montfichet's Tower (3.3 miles south-east). Green spaces nearby include St. James's Park Lake and Dartmouth Park Hill.

Map of Tufnell Park © OpenStreetMap contributors
Accreditations

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