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

Fire stopping in Greenford

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

  • Fire-rated sealant that has cracked or shrunk back
  • Fire-stopping items raised at inspection or handover
  • Non-fire-rated filler around services
1
Send details
Drawings, photos, a joint schedule or a site visit.
2
Get a quote
A fixed quote for the work, with the scope in writing.
3
We seal
Failed joints cut out, faces prepared, new sealant laid.
4
Guaranteed
Our workmanship is guaranteed for 12 months.
London, the South East & Scotland
CHAS accredited
£5m public liability

Fire stopping in Greenford

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

About our fire stopping in Greenford

A lot of fire-stopping work comes after M&E installation, a refit or a tenant fit-out. Each new cable, pipe or data route cut through a fire-resisting wall leaves an opening behind, and they are easy to forget. We close the openings listed on your schedule, using the specified sealant and detail. If you have open linear gaps along the top of fire-resisting walls and fire stopping installed outside its tested range, we can help, whatever the surface. Facilities teams, main contractors and managing agents in Greenford tend to want the same three things: a fixed quote, no surprises on site and a 12-month guarantee behind the result.

In a London area such as Greenford, buildings are refitted often, and every new cable, pipe or duct through a fire-resisting wall or floor leaves a gap. Where the specification names fire-rated sealant, it goes in exactly as the manufacturer’s test evidence shows for that wall or floor.

Our workmanship is guaranteed for 12 months, wherever the site is. If a joint we sealed fails because of how it was installed, we come back and put it right.

Where
Greenford (UB6, UB5, UB1)
Region
Greater London
Cover
A 12-month guarantee
Price
Fixed quote, scope in writing
Phone
01277 525 020
Updated
3 November 2026
The Mastic Doctor team standing beside their branded vans outside an office building

Cost factors for service penetrations

To price the job, we consider:

  • The total length or number of joints
  • The product specified
  • The site’s rules and procedures
  • Location, for remote and island sites

Access can matter as much as the joints themselves: joints within easy reach take less time than ones that need access equipment. Tell us how the joints are reached and call for a quote.

Details that help us quote

A few photographs plus some basic facts will normally do. Please tell us:

  • The postcode of the building
  • Photos of the joints, close up and from further back
  • How the joints are reached, and at what height
  • The asbestos register, for older buildings

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.

Fire stopping in Greenford: the local picture

For England, the fire stopping of penetrations is dealt with in Approved Document B. Its BS 476 references are being withdrawn from 2 September 2029, with BS EN 13501-2 classification taking over, subject to transitional arrangements. What we install is set by the specification, and it goes in to the tested detail. Every new tenant in a London building tends to bring new cabling, and with it new holes through compartment walls. We seal to the specification and the product’s tested detail, working within the building’s permits.

Campus buildings at universities such as University of West London (to the south-east of Greenford) see constant changes to data and services, and fire-rated sealant goes in around new penetrations where it is specified. For a site team at a college like Redwood College, less than half a mile south of Greenford, fire-rated sealing is best scheduled after the summer works.

Greenford is about 3 miles north-west of Ealing, in Greater London. Greenford sits inside our coverage and the rest of Greater London, and jobs here get the same fixed quote and 12-month guarantee as anywhere else. Greenford is one of 764 places we cover in Greater London. For work in that direction, see our London page, about 11 miles away.

Postcode districts covered here: UB6, UB5 and UB1 for service penetrations. Streets here include Courthope Road, Oldfield Farm Gardens and Greenford Road. Being close to the A4090 and A4127, Greenford is easy to get to with materials and equipment. Sites close to Greenford are covered too, including Northolt (1 mile north-west), Perivale (1 mile east), Sudbury (2 miles north-east), Sudbury Hill (2 miles north-east) and Dormers Wells (2 miles south-west). Further afield, our area takes in London (11 miles east), City of Westminster (9 miles east), Marylebone (9 miles east), Kensington (7 miles south-east), St Pancras (10 miles east) and Shoreditch (12 miles east).

Local landmarks in Greenford

Locally, jobs take us to sites close to Ada Lovelace Church of England High School, The Railway pub and Northala Fields, among other places. Greenford has its own railway station: Greenford station. Nearby you’ll also find London Designer Outlet (3 miles north-east) and Clementine Churchill Hospital (2 miles north). Open spaces near Greenford include Northala Fields and Litten Nature Reserve.

Map of Greenford © OpenStreetMap contributors

Honest limits

A proper diagnosis includes knowing what sealant can’t do. You’ll hear from us if the cause turns out to be any of the following:

  • Fire risk assessments, a job for a competent assessor
  • Walls or floors that aren’t fire-resisting to begin with
  • Signing off or certifying a building’s fire stopping

If in doubt, give us a call on 01277 525 020 or send photos by email and we will say what we think before you book.

What we seal

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

What we are called out for in Greenford

Plenty of openings were simply never closed. They come to light during inspections, refits or when another trade lifts a tile.

It’s worth sending us details if you spot any of the following:

  • Fire stopping installed outside its tested range
  • Fire seals cut back for extra cables and never reinstated
  • Unsealed joints where partitions meet the slab
  • Openings found when ceilings come down for a refit

On a hospital site such as The Clementine Churchill Hospital, 2 miles to the north of Greenford, fire-rated sealant goes in where the specification calls for it, with the work planned around the estates team’s permits.

Questions to ask before you book

  • How they handle RAMS and site documents
  • Proof of insurance
  • Whether primer will be used where the manufacturer specifies it
  • How they’ll work around occupants

Questions to ask before you appoint anyone

Building owners, agents and FMs in Greenford

FMs need a contractor who is easy to get on site. Let us know the documents you need (RAMS, insurance certificate, CSCS details) and we will confirm them with the quote.

We work for building owners and managing agents on everything from one building to a spread of sites. One quote can cover more than one site, so there’s one set of paperwork to deal with.

Your questions answered

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

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.

Will you take on work at estates like Lyon Way Industrial Estate, close to Greenford?

Yes. Our area takes in Greenford and its surroundings, with estates and business parks such as Lyon Way Industrial Estate included. Send details of the unit and the work through our quote form for a quick quote.

Who decides which product is used?

The specification comes first, if there is one. If there isn’t one, it comes down to the joint: its movement, its surfaces and what it has to cope with.

Can you quote from photographs?

That depends on the size and complexity of the job. Simple work can often be priced from photographs, and bigger or more complex jobs usually get a visit.

Do you work to architects’ specifications?

Yes. Send it with your enquiry, and we will price the work to it.

Is your workmanship covered by a guarantee?

Yes. Our workmanship is backed for 12 months.

Are your applicators CSCS-carded?

Yes. Our applicators hold CSCS cards, which many sites require.

On site: what to expect

We begin with a short walk round with whoever looks after the building, to confirm the scope, the order of work and any areas we must keep clear. Then we strip out anything that has failed, prepare every joint and seal it. For a job in Greenford, access comes first: booked loading, goods lifts, the building’s permit system and a spot to keep materials. Give us the hours we can be on site and we’ll schedule to suit.

  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. Mineral wool or other backing is fitted where required.
  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.

What we need from you

  • Confirm the product named in the specification
  • Clear stock, furniture or equipment away from the joints
  • Flag any permit to work we’ll need

Get a fixed quote

Specifications, drawings and tender packages are welcome with any enquiry, and we’ll price against exactly what is specified. Smaller jobs need nothing more than photos and a few notes.

Ask for a quote

Related advice

Why it’s worth doing now in Greenford

The longer openings stay, the more there tend to be: every new cable or pipe adds another. Keeping on top of it after each round of works keeps the job small, rather than turning into a full building survey and reseal. In Greenford, each extra visit means more notices, permits and disruption, so a proper job first time, with the old sealant fully removed, is worth it.

What a job costs comes down to how many linear metres there are, how much old material needs removing and how the joints are reached. Call for a quote once you have the details.

What you get with us

  • Work to your specification and the manufacturer’s guidance
  • Public liability insurance in place
  • One phone line for London, the South East and Scotland
  • Constructionline member for supplier checks

Take a look at our cost guide or our accreditations.

Accreditations

Trusted. Accredited. Insured.