Greater London · England
Fire Rated Sealant in Friern Barnet
Problem with your fire-stopping gaps in Friern Barnet? We remove the old material, prepare the joints and seal them properly, with a one-year guarantee.
- Cracked or shrunken fire-rated sealant
- Open joints along the top of partitions
- Gaps left after a refit or conversion
Friern Barnet questions
Can you help a landlord with a rental near New Southgate station?
Yes. We work for landlords and letting agents as well as homeowners, and several properties can be quoted together. Just call 0345 464 0079 or send us an email with the address and what needs doing, and we’ll give you a clear quote.
Can parking be tricky for a visit in Friern Barnet?
Parking in Friern Barnet, as in most of London, takes a little planning: a visitor permit or a bay close to the door helps a lot.
What should I tell you?
Only a few details: where it is, what you’ve noticed and how we reach it. After that, simply phone 0345 464 0079 or send us an email.
Can ordinary silicone be used in a fire-stopping gap?
No. Standard sealants aren’t made or tested to stop fire. We cut it out and reseal with a fire-rated product.
Do you carry out fire risk assessments?
No, assessment is not something we do. When your assessor or designer has set out what’s needed, we’ll quote for the sealant work on it.
Do you have insurance?
Yes. Full insurance covers our work.
Can you fill the gap behind a fire door frame?
Yes. We often seal open gaps hidden behind the architrave. The door and its fittings are a separate job for a door specialist.
What does intumescent mean?
Fire-rated sealant covers any sealant tested for use in fire stopping. Intumescent types expand when heated, and they’re one of the options. The specification and the tested detail decide which is used.
Fire rated sealant for homes and businesses in Friern Barnet
We don’t assess buildings or decide what fire stopping is needed; that comes from your fire risk assessor, designer or building control. What we do is apply the right product to that specification, properly and neatly. If you are dealing with holes left by a change of layout and open joints along the top of partitions, we can help.
Across London, offices, shops, hotels, student halls and blocks of flats all need sealant work from time to time, from washroom silicone to fire-rated sealant around pipes and cables passing through walls. Out-of-hours working can be arranged where a building in Friern Barnet can’t close.
Every job is covered by our 12-month guarantee, wherever you are in Greater London.
- Location
- Friern Barnet (N11, N12, N10, N20)
- Wider area
- Greater London
- Guarantee
- 12 months on all our work
- Price
- A clear price before we start
- Telephone
- 0345 464 0079
- Last updated
- 26 October 2026
How to look after the new joints
Aftercare is simple:
- Ask which product was used before you paint
- Allow for resealing whenever new services are run
- Include hidden areas like risers in routine checks
- Keep pictures of seals that will be hidden
Keep the record we give you with the building’s fire safety documents. It saves time at the next inspection or assessment.
Any job that breaks through a wall or ceiling should include resealing. Catching it then saves a separate visit later.
Different surfaces, different methods
Linear gaps
Long, narrow gaps appear where walls meet slabs and ceilings. We seal them to the tested detail, with backing where it’s needed.
Plasterboard walls
Holes in plasterboard are often cut roughly for services. Where a hole is bigger than the sealant’s tested range, it needs another approach.
What happens on the day
On the day, we start by going over the job with you, so there are no surprises. We protect the surfaces around the joints before any work begins. Most jobs take anything from a few hours to several days, depending on how many gaps there are. For a job in Friern Barnet, 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.
- We plan the order of work and access, floor by floor or flat by flat.
- Old, damaged or unsuitable sealant is removed.
- Dust and loose debris are cleaned from each gap.
- We apply and tool the sealant to the product’s tested detail.
- We record what was done and flag anything that needs a different system.
Before we arrive
- Tell us about any water getting in
- For business premises, tell us about site rules or sign-in
- Tell us about access, such as stairs, a lift or high-level joints
How to get a quote
To get a quote, ring 0345 464 0079 or send us an email with the location and a short description of the problem. We will give you a clear price before any work starts.
Advice
Leave it or put it right?
Leaving a gap until a refurbishment comes round can mean years with it open. Sealing the gap now is a contained job on its own. Damp from a failed joint spreads quietly in older London brickwork and timber, and once it shows in Friern Barnet, the repair is bigger than a sealant job.
No two jobs are quite the same, so each one gets its own quote. The number of joints, how easy they are to reach and the sealant needed all make a difference, and we’ll explain the quote if you ask.
Why book with us
- 180+ five-star Google reviews
- Domestic, commercial and hotel work
- Every job guaranteed for a year
- Tidy, careful work
Read our cost guide or our reviews.
When it is not the sealant
We’d rather tell you now than do work that won’t last, so these are the limits:
- Doors that aren’t fire doors in the first place
- Big openings where sealant alone isn’t the tested solution
- A wall that is not a fire-resisting element to begin with
If you are not sure, just call 0345 464 0079 or drop us an email and we’ll give you a straight answer before you book.
Surfaces we seal
- Plasterboard & masonry
- Service penetrations
- Door frames
- Pipe & cable gaps
- Flats & HMOs
- Linear gaps
Commercial buildings in Friern Barnet
Workplaces and the common parts of blocks of flats in England need a fire risk assessment under the Regulatory Reform (Fire Safety) Order 2005, which is often where open fire-stopping gaps are first noticed. We work to the specification you’re given, installing the product to its tested details. Many London buildings have tight access and loading restrictions, so out-of-hours working can be arranged where needed.
Friern Barnet is in London, so parking needs planning: let us know about parking bays, permits or a driveway. Managing a site like Holly Park Primary School? Then service openings in fire-resisting walls need checking after any refurbishment.
Friern Barnet is about 2 miles north-east of Finchley, in Greater London. Whether you are in the middle of Friern Barnet or further out, we cover fire rated sealant for every kind of property, from flats and houses to offices and hotels. Friern Barnet is one of 764 places in Greater London where we work for fire rated sealant. There’s also a page for London, roughly 8 miles from Friern Barnet.
Work in N11, N12, N10 and N20 works the same way as everywhere else we cover. That includes homes and businesses on Martock Gardens, Shapwick Close and Radstock Close. You’ll find Friern Barnet on the A406 and B550, so it’s easy for us to get to with everything needed for fire rated sealant. If you are just outside Friern Barnet, we cover New Southgate (1 mile east), Brunswick Park (1 mile north), North Finchley (1 mile west), Arnos Grove (1 mile east) and Whetstone (1 mile north-west). Within a short drive, we also cover London (8 miles south), City of Westminster (7 miles south), Marylebone (7 miles south), Kensington (8 miles south), St Pancras (6 miles south) and Shoreditch (7 miles south-east).
Near you in Friern Barnet
Locally, jobs take us to homes and businesses close to Francis Skaryna Belarusian Library and Museum, Friary Park and Friern Barnet School and the streets around them. Friern Barnet has its own railway station: New Southgate station. Well-known places in the area include Francis Skaryna Belarusian Library and Museum (1.4 miles west) and Grand Arcade (1 mile west). Green spaces nearby include Highgate Hill and Darland's Lake.
When to call us in Friern Barnet
If the sealant is too shallow, has the wrong backing or sits on a dusty surface, it is not installed as tested. Rushed fire stopping is common particularly when it was the last job before handover.
Any of these means the joints need attention:
- Old fire sealant that has split or come away
- Damaged fire sealant left by other trades
- Linear gaps at the head of walls
- Gaps left after a refit or conversion
Community buildings like St John's Church are part of the picture too: older buildings that have had new heating or wiring often have service gaps worth checking.
Comparing quotes
- What the quote includes, VAT included or not
- How the colour is chosen
- What the cure time is
- Is the old sealant removed completely?
For landlords and businesses
Whether it’s one flat or a portfolio, you get the same standard of work: the old material taken out, careful preparation and a 12-month guarantee.
Businesses can book us for washrooms, kitchens, offices and more. On commercial sites, working times can be discussed when we quote.