Greater London · England

Fire Rated Sealant in Cricklewood

Fire rated sealant across Cricklewood and nearby, with old sealant always removed completely and a one-year guarantee.

  • Unsealed gaps where pipes and cables go through a wall
  • Holes left by a change of layout
  • Seals cut through by electricians, plumbers or data installers

Fire rated sealant in Cricklewood

How we handle fire rated sealant in Cricklewood

We often work from an action list drawn up by a fire risk assessor for buildings in Cricklewood. If you share the list, we can quote for the gaps that need fire-rated sealant. If you have gaps left after a refit or conversion and standard silicone or caulk in a fire-stopping gap, we can help.

London’s offices, shops, hotels, student accommodation and blocks of flats all have joints to look after, from washroom silicone to fire-rated sealant around pipes and cables passing through walls. Where a building in Cricklewood needs to stay open, work can be planned outside normal hours.

The work is guaranteed for twelve months. If there’s a problem with our work within the year, let us know and we will sort it.

Place
Cricklewood (NW2, NW6, NW10)
Region
Greater London
Cover
A year, on every job
Price
Quoted before any work starts
Phone
0345 464 0079
Updated
26 October 2026
The Mr Mastic team in navy uniforms in front of three Mr Mastic vans

How the visit works

Every visit runs the same way: we check the joints, mask and protect the surrounding surfaces, do the work and tidy away. Most jobs take from a few hours to a few days, depending on the number of gaps and the access. For a job in Cricklewood, parking and access are the things to plan: tell us about permits, visitor bays or off-street space, which floor we are working on and whether there’s a lift.

  1. Before starting, we go through the specification or action list with you.
  2. We measure every gap and note what it’s in and what passes through.
  3. Any non-fire-rated filler is removed and the faces cleaned.
  4. We fit backing where needed and apply the fire-rated sealant to depth.
  5. We hand over a list of locations and products for your records.

Getting ready for the visit

  • Mention any parking rules near the property
  • Tell us about any previous sealing or DIY attempts
  • Try not to wet indoor joints just before the visit

How to get a quote

Getting a quote is simple: let us know the job and the location, and roughly how big it is. A few pictures by email make the job easier to understand, and we’ll take it from there.

Get a quick quote

Advice

FAQs for Cricklewood

Is parking an issue for fire rated sealant in Cricklewood?

Parking in Cricklewood, as in most of London, takes a little planning: a visitor permit or a bay close to the door helps a lot.

Is Cricklewood in your area for fire rated sealant?

Yes, Cricklewood is within the area we cover. Our work covers London and the South East. Just call 0345 464 0079 or email us with a few details of the job.

What information do you need?

A short description and the location, with pictures by email if possible. We’ll ask anything else we need to know.

Do you certify the fire stopping?

That isn’t something we state or certify. Your specification sets the requirement, and we apply a product tested for it with a record of each location.

Is intumescent sealant the same as fire-rated sealant?

An intumescent sealant expands when it gets hot to help seal the gap. Intumescent sealants are one kind of fire-rated sealant; the right one depends on the gap and what passes through it.

Do you take on fire stopping in schools and offices?

Yes. Flats, HMOs, offices, schools and other occupied buildings are all part of our work. The order of work and access are planned with you.

Do you take out the old sealant first?

Always. Sealing over the old bead is the commonest cause of early failure, so we never do it.

Do I have to be there?

For indoor joints, yes, someone needs to let us in. Once we have agreed the job, you do not need to watch us work.

What we are called out for in Cricklewood

Door frames are a common weak spot. The gap between the frame and the wall is hidden behind the architrave, so it can be left open when a door is replaced.

Keep an eye out for these signs:

  • Damaged fire sealant left by other trades
  • Open holes round services passing through fire walls
  • Door frames with gaps between frame and wall
  • Gaps where walls meet ceilings or slabs

As a London address, Cricklewood can be tricky for parking: let us know about parking bays, permits or a driveway.

What to look for in a quote

  • Who turns up on the day
  • Whether you can choose the colour
  • What insurance they hold
  • Whether the sealant suits the joint

How to choose a mastic man

For landlords and businesses

Housing providers, facilities teams and property managers book us too in Cricklewood and across Greater London. Several sites can be quoted together.

For anyone letting property in or around Cricklewood, jobs at different addresses can go on one quote. Send us the addresses and the work at each, and photos by email help.

Quotes for fire rated sealant in Cricklewood

You will get a clear quote before any work starts. It’s based on:

  • How much old sealant there is and how hard it is to remove
  • Any mould that needs treating
  • Whether the work is at height
  • When we can work, for business premises

The cost depends on the size of the job, how much old material has to come out and how easy the joints are to reach. We give a clear quote before we start.

Helping us quote

A few details help us give you an accurate quote. When you ask for a quote, tell us:

  • A few pictures by email, if you can
  • The address or postcode of the job
  • The rough size of the job
  • What’s wrong with the joints now

Call for a quick quote, or email us if that is easier. Tell us about the joints that need doing and we will explain what’s involved and send you a clear quote.

Honest limits

Some problems need a builder, plumber or other trade rather than us:

  • Deciding what fire stopping a building needs
  • Sign-off of the building, which sits with building control or your assessor
  • Problems with the door itself rather than the gap around the frame

Not sure which it is? You can ring 0345 464 0079 or drop us an email and we’ll tell you honestly.

What we seal

  • Service penetrations
  • Linear gaps
  • Plasterboard & masonry
  • Pipe & cable gaps
  • Flats & HMOs
  • Door frames

Aftercare tips

Once the sealant has cured, a few habits help it last:

  • Get damaged fire seals looked at promptly
  • Look in service cupboards and ceiling voids from time to time
  • Do not paint over fire sealant until it has cured
  • Allow for resealing whenever new services are run

Do not drill through or remove a fire seal without putting it back properly. If you need new services through a sealed wall, plan the fire stopping as part of the job.

Small gaps around services are simple to deal with while there are only a few. Leave them and each new job adds another hole.

Different surfaces, different methods

Plasterboard walls

Many fire-resisting walls in flats, offices and conversions are plasterboard. The sealant has to be one tested in plasterboard for each gap size.

Flats and HMOs

Working in occupied flats needs some planning. We agree access to each flat and the common parts before work begins so residents know what to expect.

Fire rated sealant in Cricklewood: local notes

Commercial buildings in London often have strict access rules and limited loading, so out-of-hours working can be arranged where needed. In England, the Regulatory Reform (Fire Safety) Order 2005 requires a fire risk assessment for workplaces and for the common parts of blocks of flats, which is often where open fire-stopping gaps are first noticed. We apply fire-rated sealant to the assessor’s or designer’s specification and the product’s tested details.

If you let a flat or house near Cricklewood station, any gap left by new services in shared walls should be closed with a fire-rated product. Managing a site like Anson Primary School? Then fire-stopping around service openings should be restored whenever new services go in.

Cricklewood is about 1 mile north-west of Kilburn, in Greater London. Every kind of property in Cricklewood is covered for fire rated sealant, old or new, large or small. The work is guaranteed for a year. Our Greater London coverage runs to 764 places, and Cricklewood is one of them. You can also see our page for London, about 7 miles away.

Postcode districts we cover here for fire rated sealant: NW2, NW6 and NW10. Fire rated sealant is available to properties on Ivy Road, Walm Lane and Dean Road. You will find Cricklewood on the A407, so it’s easy for us to get to. We also cover Brondesbury (1 mile south-east), Willesden (1 mile south-west), Dollis Hill (1 mile north-west), Willesden Green (1 mile south-west) and Neasden (1 mile west). Within a short drive, we also cover London (7 miles south-east), City of Westminster (4 miles south-east), Marylebone (4 miles south-east), Kensington (4 miles south), St Pancras (5 miles south-east) and Shoreditch (6 miles east).

Near you in Cricklewood

In Cricklewood, that means homes and buildings near Hampstead School, The Crown Public House and Gladstone Park, among other places. Cricklewood has its own railway station: Cricklewood station. Other landmarks nearby include St Andrew's Hospital (0.8 miles north-west) and Brent Museum and Archives (0.7 miles south-west). Open spaces near Cricklewood include Parliament Hill and Westbere Copse.

Map of Cricklewood © OpenStreetMap contributors
20+ yearsMastic and sealant specialists
ARBOMaster approvedApproved applicator for Arbo sealants
Fully insuredDomestic, commercial and hotels
One-year guaranteeOn every job