Greater London · England
East Finchley Fire Rated Sealant
Fire rated sealant in East Finchley from a team with over 20 years’ experience. 180+ five-star Google reviews and a 4.9 rating.
- Unsealed gaps where pipes and cables go through a wall
- Cracked or shrunken fire-rated sealant
- Damaged fire sealant left by other trades
Landlords, agents and businesses in East Finchley
We also work for businesses, from offices to washrooms and kitchens. For commercial premises, we can talk through working times when we quote.
Failed sealant is one of the commonest items on a check-out report. Several properties can be quoted together.
Fire rated sealant in East Finchley
A gap around a door frame, a linear joint at the head of a wall and a hole round a pipe are each sealed differently. We check the size and the substrate before choosing the product, then apply it to the depth its tested detail calls for. If you have sealant items on a fire risk assessment action list and open holes round services passing through fire walls, we can put it right, whatever the surface.
Across London, offices, shops, hotels, student halls and blocks of flats all need sealant work from time to time, whether that’s washroom resealing or fire-rated sealant around service openings. Where a building in East Finchley needs to stay open, work can be planned outside normal hours.
We guarantee the work for a year. If something is not right with it in that time, tell us and we’ll put it right.
- Where
- East Finchley (N2, N3, NW11)
- Wider area
- Greater London
- Guarantee
- A year, on every job
- Quotes
- Quoted before any work starts
- Phone
- 0345 464 0079
- Last updated
- 26 October 2026
Fire rated sealant around East Finchley
Workplaces and the common parts of blocks of flats in England need a fire risk assessment under the Regulatory Reform (Fire Safety) Order 2005, and gaps around services are often picked up there. We apply fire-rated sealant to the assessor’s or designer’s specification and the product’s tested details. Commercial buildings in London often have strict access rules and limited loading, and out-of-hours working is possible to arrange.
Letting a property close to New Southgate station? Then new cables or pipes through a fire-resisting wall leave a gap that needs the right sealant. Community buildings like Church of the Holy Trinity are part of the picture too: older buildings that have had new heating or wiring often have service gaps worth checking.
East Finchley is about 5 miles north of Marylebone, in Greater London. Whether you are in the middle of East Finchley or further out, we cover fire rated sealant for every kind of property, from flats and houses to offices and hotels. 764 places in Greater London are on our list, from the larger towns to small villages. You can also see our page for London, roughly 7 miles from East Finchley.
Jobs for fire rated sealant in N2, N3 and NW11 is quoted and booked the same way as anywhere else. That includes homes and businesses on Oak Lane, Maya Road and High Road and the roads around them. East Finchley is on the A1, which makes it straightforward to reach. If you’re just outside East Finchley, we cover Hampstead Garden Suburb (1 mile south-west), Fortis Green (1 mile east), Temple Fortune (1 mile south-west), Muswell Hill (1 mile east) and Golders Green (2 miles south-west). We also work in nearby towns such as London (7 miles south-east), City of Westminster (5 miles south), Marylebone (5 miles south), Kensington (6 miles south), St Pancras (5 miles south-east) and Shoreditch (6 miles south-east).
Near you in East Finchley
Locally, jobs take us to homes and businesses close to Tollington School, Francis Skaryna Belarusian Library and Museum and Bishop Douglass School Finchley. Other local landmarks include Lyttelton Playing Fields (0.5 miles south) and The Bald Faced Stag pub (0.5 miles east). The closest station to East Finchley is New Southgate station, about 2.2 miles north-east of the centre. A little further out are Grand Arcade (1.6 miles north) and Jewish Museum - Finchley (0.7 miles north-west). Open spaces near East Finchley include Highgate Hill and Long Lane Pasture.
DIY versus a professional finish
A DIY attempt does not rule out a professional job. We remove it and do the joint properly, so just mention it when you contact us.
Too much sealant is as bad as too little. A thick, smeared bead looks untidy and does not move well, and getting the depth right matters as much as the look.
Your questions about fire rated sealant in East Finchley
Is parking a problem for a job in East Finchley?
London parking needs a little planning, so let us know about permits, bays or a driveway when you book. The visit is then planned around what’s available.
Do you work for hotels and guest houses in East Finchley?
Yes. Hotel and guest-house work is part of what we do. Work can be planned room by room, and out-of-hours working can be arranged.
Which products do you use?
The product depends on the job: anti-fungal sanitary silicone in wet areas, and other sealants where joints move or face the weather. We use products from Arbo and Everbuild.
Can tenants book the work?
Yes. Check with your landlord; we can send the quote to them too.
Do you certify the fire stopping?
That is not something we state or certify. The requirement comes from your assessor, designer or building control, and we fit a product whose tested details meet it.
Is the work guaranteed?
Yes, always. Each job is guaranteed for twelve months.
Will the old sealant be removed?
Yes, every time. New sealant will not bond properly to old, so any old material comes out before anything new goes in.
Can ordinary silicone be used in a fire-stopping gap?
No. It looks sealed but won’t perform as fire stopping. A tested fire-rated product is needed.
How it works
We keep the work tidy and contained to the joints we’re treating, so you can carry on as normal. Expect the work to take anything from a few hours to several days, depending on how many gaps there are. In East Finchley, as in most of London, parking needs a little planning. A visitor permit or a nearby bay makes the visit run more smoothly.
- Access to each area is agreed so the work can run in order.
- We take out any damaged or unsuitable sealant.
- Dust and loose debris are cleaned from each gap.
- We apply and tool the sealant to the product’s tested detail.
- Locations and products are written up and any gaps unsuitable for sealant are flagged.
How to prepare
- On commercial sites, let us know about site rules
- Move anything stored near the joints
- Mention any parking rules near the property
Get a quote
Want a quote for fire rated sealant? Please call 0345 464 0079 or send us an email with a few details. We’ll explain what we’d do and give you a clear price before any work starts.
Related advice
Aftercare tips
Once the sealant has cured, a few habits help it last:
- Check whether a sealant can be painted before decorating over it
- Ask every contractor to reseal any fire stopping they disturb
- Take pictures of fire stopping before ceilings or boxing go back
- Flag any open gap you spot round a pipe or cable
Avoid covering a sealed gap with anything that is not part of the tested detail. Repairs should use a matching fire-rated product. Ask us if you are not sure which product was used.
If a fire risk assessment has flagged a gap, do not leave it for the next one. Get it sealed and recorded.
Signs you need fire rated sealant in East Finchley
Many open fire-stopping gaps are made after the building is finished. Electricians, plumbers and data installers drill through walls and ceilings and the hole they leave does not always get resealed.
Look out for these signs:
- Door frames with gaps between frame and wall
- Gaps where walls meet ceilings or slabs
- Damaged fire sealant left by other trades
- Old fire sealant that has split or come away
If you look after a building such as Holy Trinity CofE Primary School, service openings in fire-resisting walls need checking after any refurbishment.
Questions to ask before you book
- Whether the sealant suits the joint
- Whether you can choose the colour
- What the cure time is
- What guarantee comes with the work
What happens if it’s left?
For some gaps, sealant isn’t the right answer and another system is needed. Big openings, bundles of cables and plastic pipes may need batts, collars or wraps instead. We will say so if a gap needs something other than sealant. Converted houses in London often have a bathroom above someone else’s living room, so a small leak from tired sealant can mean a neighbour’s ceiling and a lot of disruption. Dealing with it early is far simpler.
Instead of a standard rate, we look at what your job involves: the amount of work, the old material and the access. You will know the price before we begin.
Why choose Mr Mastic in East Finchley
- Trusted Arbo and Everbuild sealants
- Fully insured
- Domestic, commercial and hotel work
- 180+ five-star Google reviews
Nearby places to East Finchley
What else we do in East Finchley
What affects the cost of fire rated sealant
We do not publish a price list, because no two jobs are the same. The quote depends on:
- Any mould that needs treating
- Whether the work is at height
- The size of the job
- Whether old sealant or filler has to be cut out
Combining jobs into one visit generally makes better use of the time than several visits, so it’s worth mentioning everything you’d like done. We’ll give you a clear quote for the lot.
What to tell us for a quote
To help us quote quickly, please include:
- If someone has resealed it before
- Where the property is
- A few photos by email, if you can
- The problem you’ve noticed
If you’re in East Finchley and need fire rated sealant, call 0345 464 0079 or send us an email. Tell us what the problem is and where, and you will get a clear quote before work begins.