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

Euston fire stopping

Fire-rated and intumescent sealing of service penetrations and linear gaps throughout Euston and nearby, carried out by CSCS-carded applicators. CHAS accredited and fully insured.

  • Fire stopping installed outside its tested range
  • Unsealed penetrations discovered above suspended ceilings
  • Openings left by services added after handover
1
Send details
Tell us about the site, with photos if you have them.
2
Get a quote
A fixed price, with what’s included set out clearly.
3
We seal
The right sealant, to the right depth, neatly finished.
4
Guaranteed
Signed off, with 12 months’ guarantee.
Covering the South East & Scotland
CHAS & Constructionline
Fully insured: £5m PL

Need fire stopping in Euston?

Tell us what needs sealing and where, with photos or drawings if you have them, and we’ll price it.

When something else is needed

A few problems need another trade or a different fix, and we say so rather than covering them up:

  • Walls or floors that aren’t fire-resisting to begin with
  • Large openings beyond what any sealant detail covers
  • Writing the fire-stopping specification

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

Joints and surfaces we work on

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

How we handle fire stopping in Euston

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; sign-off sits with them too. What we bring is careful installation of the specified sealant, to the maker’s guidance on buildings around Euston. Most enquiries involve damaged fire seals in risers and voids and head-of-wall gaps with no fire seal, on cable penetrations, linear gaps at wall heads and joints between fire-resisting walls and floors. Facilities teams, main contractors and managing agents in Euston tend to want the same three things: a clear scope, tidy work and joints that don’t fail again.

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.

Our workmanship is guaranteed for 12 months, in Euston as everywhere else we work. If our installation lets you down in that time, we return and fix it.

Mastic Doctor team members lined up next to their branded vans outside an office building
Location
Euston (NW1W, W1T, NW1)
Wider area
Greater London
Cover
12 months on our workmanship
Quote
A fixed quote before we start
Telephone
01277 525 020
Updated
3 November 2026

Diagnose, treat, sign off

When we get to site, we report to your site contact and complete whatever induction the building runs. Floors, finishes and fittings next to the joints are covered before any cutting starts, with the work itself normally taking anything from one day to a planned run of visits, depending on the number of seals and the access. Planning a London job such as one in Euston starts with access: 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.

  1. We ask for the product and detail your designer has specified.
  2. We sort the openings by the detail each one needs.
  3. Improvised fillers and failed sealant are removed.
  4. Where the detail needs backing, it goes in at the stated depth.
  5. We gun the sealant in to the specified depth around each service and tool it.
  6. We walk the completed areas with you and confirm the records agreed at quote stage.

Before we start on site

  • Let building users know which areas are affected
  • Tell us your opening times and when work is allowed
  • Tell us what induction or permit system the site runs

Ask for a quote

To get a fixed quote, call 01277 525 020 or email the details over, telling us the site location and the nature of the job. You can also send details through our quote form.

Ask for a quote

Read more

Leave it or put it right?

An improvised seal can look finished while offering no tested performance. The fix is to remove it and reinstall to the detail, so it makes sense to get it right first time. In Euston, each extra visit means more notices, permits and disruption, so a proper job first time, with the old sealant fully removed, is worth it.

Small jobs and large programmes are priced from the same things: what’s in scope, how we reach it, what’s specified and when it needs doing. Call for a quote, and you’ll have a fixed figure to work with.

Why appoint us

  • Specification-led, product-correct work
  • Fixed quotes based on photographs, drawings or a visit
  • Fully insured
  • Workmanship guaranteed for 12 months

Read our cost guide or our accreditations.

How the job changes by surface

Metal pipes

Copper and steel pipes are a common service penetration for fire-rated sealant. The tested detail sets the pipe size range, gap, depth and whether insulation can stay on.

Masonry and concrete

Block walls and concrete floors are common substrates for penetration seals. Dust and loose debris are cleared out of the opening, so the sealant and any backing sit properly.

Compartments and services around Euston

London’s office and residential buildings are refitted constantly, and each round of cabling or pipework can leave open penetrations. We seal to the specification and the product’s tested detail, working within the building’s permits. There are two care or nursing homes within about 2 miles of Euston. Care settings depend on compartmentation, so service penetrations made during maintenance or refurbishment need sealing with the specified product. Where that’s fire-rated sealant, we install it to the manufacturer’s tested detail.

For a unit at a site such as Roman Way Industrial Estate, 1.4 miles to the north-east of Euston, new power or data runs between office and warehouse can breach a compartment wall. Residences at universities like University College London (less than half a mile south-east of Euston) have compartment walls that must be resealed whenever services change. For a unit at a centre such as Brunswick Centre, which lies south-east of Euston, penetration seals are worth checking after each shop fit.

Euston is about 1 mile west of St Pancras, in Greater London. Looking for fire stopping in Euston? We can help, as we do across Greater London. We work across 764 places in Greater London, from busy centres to rural villages.

If you need fire stopping in NW1W, W1T and NW1, the process matches everywhere else we work: send details, get a quote, we seal, guaranteed. If your site is on Euston Road, Duke's Road and Phoenix Road or close by, send details and we’ll quote for service penetrations. Euston sits on or close to the A501 and A4200, which helps when planning parking and deliveries for the job. Close to Euston, our area also takes in Somers Town (1 mile north), Fitzrovia (1 mile south-west), Bloomsbury (1 mile south-east), Kings Cross (1 mile north-east) and St Pancras (1 mile east). Nearby towns on our patch include London (3 miles south-east), Kensington (4 miles south-west), Walthamstow (6 miles north-east), Whitechapel (3 miles east), Hampstead (3 miles north-west) and Ruislip (12 miles west).

Around Euston

Recent enquiries here include premises near Lewis Cubitt Park, The Doric Arch pub and Maria Fidelis Catholic School FCJ. Other local landmarks include St Aloysius Catholic Primary School (less than half a mile north) and Wellcome Collection (under half a mile south-west). Euston has its own railway station: London Euston station. Nearby you’ll also find Brunswick Centre (under half a mile south-east) and Wellcome Collection (less than half a mile south-west). Open spaces near Euston include Primrose Hill and St. James's Park Lake.

Map of Euston © OpenStreetMap contributors

Work for main contractors and building owners

We work for building owners and managing agents on sealant work across single buildings or whole portfolios around Euston. One quote can cover more than one site, so there’s one set of paperwork to deal with.

When you manage a building on behalf of an owner, clear figures and clear communication matter. We quote a fixed sum, confirm the scope and walk the finished work with you or your representative, plus a 12-month guarantee.

FAQs: Euston

Do you work on fire-rated sealing in hotels in Euston?

Yes. We install fire-rated and intumescent sealant where it is specified. We match the product to the wall or floor and the services, and say if something other than sealant is needed.

What happens to BS 476 references for fire stopping in Euston?

Approved Document B loses its BS 476 references from 2 September 2029, and BS EN 13501-2 becomes the route, subject to transitional arrangements. The designer or fire engineer sets the specification, and we install the product to the manufacturer’s tested detail.

Are you CHAS accredited and on Constructionline?

Yes. Mastic Doctor is CHAS accredited and a Constructionline member.

What hours do you work?

We are in the office from 8am until 5pm, Monday to Friday. Let us know your site hours and access windows, and the work will be planned around them.

How long does a typical visit take?

We plan the time on site around your programme and access. You will have an expected duration with the quote.

How do we ask for a quote?

It works in four steps: send details, receive a fixed quote, we carry out the work, and it’s guaranteed. The first step only needs photos and a postcode.

What happens if old sealant might contain asbestos?

Some older mastics, especially in pre-2000 buildings, can contain asbestos. We check the asbestos register before cutting out old sealant in an older building, and if asbestos is suspected, work stops until it’s tested. We don’t remove asbestos-containing materials.

Quoting for work in Euston

These are the things that shape the price:

  • Site requirements such as inductions and permits
  • Travel to remote or island sites
  • Removal of failed or old sealant
  • How much there is to seal

Larger quantities, tricky access or phasing all shape the price. Site requirements like inductions and permits play a part as well, along with the time of year for external work.

Sending details for a quote

For an accurate fixed quote, we need a clear picture of the site. Send us:

  • Whether the building will be occupied during the work
  • The product your specification calls for
  • Anything awkward about access or site hours
  • Your programme or deadline

Pricing a project or setting a maintenance budget? We will quote against your scope and drawings that you can work with. If you have questions first, phone 01277 525 020 or use the quote form.

Accreditations

Trusted. Accredited. Insured.