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

Fire Stopping in White City

Planning work on a service penetration in White City? We assess it, carry out the work and guarantee our workmanship for 12 months.

  • Non-fire-rated filler around services
  • Fire stopping installed outside its tested range
  • Unsealed openings around new pipes and cables
1
Send details
Tell us about the site, with photos if you have them.
2
Get a quote
A fixed quote for the work, with the scope in writing.
3
We seal
The right sealant, to the right depth, neatly finished.
4
Guaranteed
12-month guarantee on our workmanship.
London, the South East & Scotland
Constructionline member
£5m public liability

Need fire stopping in White City?

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

Fire-rated sealing for White City buildings

Approved Document B is the English guidance that covers fire stopping around openings and penetrations. Its BS 476 references are being withdrawn from 2 September 2029, with BS EN 13501-2 classification taking over, subject to transitional arrangements. Either way, we install the specified product to its tested detail. A good number of hotels sit less than 2 miles from White City. Hotels are divided into compartments, and refurbishments that add pipes and cables through bedroom and corridor walls leave gaps to close.

Where a unit on an estate such as Stable Way Industrial Estate, under half a mile north-east of White City, has fire-resisting walls between offices and warehouse, any new service through them should be sealed to the tested detail. In a retail centre such as Kensington Arcade (1.6 miles south-east of White City), any fire-resisting wall between units that is crossed by new services needs sealing to the tested detail.

White City is about 1 mile north-west of Kensington, in Greater London. Our applicators travel to White City for work on service penetrations, handled exactly as we handle every other area. Across Greater London, 764 places are covered, including White City. Sites around London have their own page, roughly 6 miles from White City.

If you need fire stopping in W12, W11 and W10, the process matches everywhere else we work: send details, get a quote, we seal, guaranteed. Among the streets we cover are Bard Road, Wood Lane and Abdale Road, and sites on any of them can send details for a fixed quote. Close to White City, our area also takes in Shepherd's Bush (1 mile south), Notting Dale (1 mile east), North Kensington (1 mile north), Notting Hill (1 mile east) and Kensal Town (1 mile north-east). Nearby towns on our patch include London (6 miles east), City of Westminster (3 miles east), Marylebone (3 miles east), St Pancras (5 miles east), Shoreditch (6 miles east) and Walthamstow (10 miles north-east).

Around White City

Locally, jobs take us to sites close to Hammersmith Park, Star Chamber Academy and Kensington Aldridge Academy. Also close by are The Favourite pub (0.5 miles south-east) and Polish Library POSK in London (1.4 miles south-west). The nearest railway station is Shepherds Bush station, roughly 0.5 miles south-east. Nearby you will also find Princess Louise Hospital (0.5 miles north) and Culture House (0.5 miles south). Green spaces nearby include The Long Water and Greville Place nature reserve.

Map of White City © OpenStreetMap contributors

About our fire stopping in White City

The test standards are BS EN 1366-3 for penetration seals and BS EN 1366-4 for linear joints, with results classified under BS EN 13501-2. A rating such as EI 60 only holds when the product is installed as it was tested. Reproducing the tested arrangement on site is the part we take care of. We work on pipe penetrations, cable penetrations and service gaps in risers, and the failures we’re asked to look at most are unsealed openings around new pipes and cables and improvised or mixed-product fire seals. Facilities teams, main contractors and managing agents in White City tend to want the same three things: a clear scope, tidy work and joints that don’t fail again.

After a fit-out or new cabling in a London building, risers and ceiling voids are where open service gaps tend to be found. Fire-rated sealant goes in where it’s the specified item; where a collar, wrap or batt is called for instead, we flag it.

Guaranteed is the last step of every job. Our workmanship is backed for 12 months, and the quote explains what it covers.

Mastic Doctor team members lined up next to their branded vans outside an office building
Where
White City (W12, W11, W10)
Wider area
Greater London
Cover
A 12-month guarantee
Price
Quoted before any work starts
Phone
01277 525 020
Last updated
3 November 2026

Honest limits

Honesty saves time and money. New sealant won’t cure:

  • Walls or floors that aren’t fire-resisting to begin with
  • Fire doors, dampers or other fire safety equipment
  • Deciding what a wall or floor needs, which belongs to the designer

If you’re not sure, just phone 01277 525 020 or email the details over and we’ll give you a straight answer before you book.

Where we work in White City

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

Questions we’re asked in White City

Will you take on work at estates like Stable Way Industrial Estate, close to White City?

Yes. Estates, retail parks and business parks around White City, Stable Way Industrial Estate among them, are all within reach. A few photographs and the unit address let us price the work.

How does the move away from BS 476 affect penetration seals in White City?

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 do you charge?

Every job gets its own fixed quote. To get one, call 01277 525 020 or send photos by email with a description of the work.

When can you be on site?

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

Will your applicators have CSCS cards?

Yes. Our applicators hold CSCS cards.

Is the work guaranteed?

Yes. The 12-month guarantee covers our preparation and application, though not damage or work by other trades.

Can the building stay open while you work?

In most cases, yes. Phased work can be planned so areas stay in use.

Work for main contractors and building owners

Whether you’re a managing agent, a property factor or an owner’s representative: send the details, accept a fixed quote, and we carry out and guarantee the work. We can agree access arrangements and keyholder contacts beforehand.

We work for building owners and managing agents on everything from one building to a spread of sites around White City. Several sites can go on one quote, which keeps the paperwork simple.

How the quote is worked out

Before we quote, we look at:

  • Backing rod, priming and other preparation
  • Removal of failed or old sealant
  • Specialist products, such as fire-rated or hygienic sealants
  • How accessible the joints are

Quantities, awkward access and phased working all shape the price. So do site requirements such as inductions and permits.

Details that help us quote

There’s no need for a formal survey. A few details are enough to get going:

  • The product your specification calls for
  • The site address and postcode
  • Photos of the joints, close up and from further back
  • When you need the work done

Send details, get a quote, we seal, guaranteed: that’s how every job runs. The first step is to call the office on 01277 525 020 or email drawings and photos with what you know.

From enquiry to sign-off

Tell us your site hours and access windows and we will plan around them. On the day, the work area is kept contained and tidy, and we check in with your contact before moving on to each new area. All of Greater London is in the ULEZ, and kerbside space in White City can be scarce. Let us know about any on-site parking or loading arrangements when you send the job details.

  1. First we confirm the product and tested details named in the specification.
  2. Openings are measured and grouped by detail.
  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. Completed areas are checked with you, with the records agreed when we quoted.

Getting the site ready

  • Warn occupants and staff about the work
  • Confirm the product named in the specification
  • Send asbestos survey details if the building is pre-2000

Get a fixed quote

A good quote starts with a clear picture: the joints involved, quantities, access and the product called for. Send what you have, and we will arrange a site visit if anything is unclear.

Get a quick quote

Read more

When to call us in White City

Most open service penetrations are left by later work. New cabling, rerouted pipework or a data route drilled through a riser leaves an opening that nobody returns to. Across several fit-outs, the openings add up.

Typical triggers for a call:

  • Hidden openings found during inspections
  • Head-of-wall gaps with no fire seal
  • Fire sealant pulled out of the opening
  • Damaged fire seals in risers and voids

At a university such as Imperial College London (less than half a mile north of White City), labs, lecture blocks and residences are re-serviced often, so penetration seals are best checked after M&E work.

Comparing quotes

  • Will CSCS-carded applicators be on site?
  • Will failed sealant be removed rather than covered?
  • How long is the guarantee, and what does it include?
  • How joint depth will be controlled

How to choose a sealant contractor

Site staff or a sealant specialist?

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.

Certain joints really need a specialist: for instance fire-rated seals that must match a tested detail, trafficked floor joints and external movement joints. Getting these wrong usually costs more in the end than doing them right.

Accreditations

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