Greater London · England
Fire Rated Sealant in New Barnet
Our applicators work in New Barnet on intumescent and fire-rated sealant around gaps, frames and service penetrations. Old material cut out, joints cleaned and sealed neatly.
- Standard silicone or caulk in a fire-stopping gap
- Unsealed gaps where pipes and cables go through a wall
- Damaged fire sealant left by other trades
Fire rated sealant in New Barnet, done properly
We often work from an action list drawn up by a fire risk assessor on buildings across New Barnet. If you share the list, we can quote for the gaps that need fire-rated sealant. We are often asked to deal with ordinary sealant used where a fire-rated product was needed and joints picked up in a fire-stopping survey, on service penetrations, door frames and linear gaps.
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. Out-of-hours working can be arranged where a building in New Barnet cannot close.
You are covered for a year from the day we finish. If there’s a problem with it, please phone 0345 464 0079 or send us an email.
- Location
- New Barnet (EN5, EN4, N20)
- Region
- Greater London
- Guarantee
- One year on every job
- Quotes
- A clear price before work begins
- Call
- 0345 464 0079
- Page updated
- 26 October 2026
What happens on the day
You don’t need to clear the whole room or building, just the space around the work. Everything nearby is protected, and the work takes anything from a few hours to several days, depending on how many gaps there are in most cases. In a London area like New Barnet, the main things to plan are parking and access: let us know about parking, the floor we’ll be working on and any lift or shared entrance.
- Before starting, we go through the specification or action list with you.
- Each gap is measured and its substrate and service noted.
- Unsuitable material such as ordinary foam or silicone is cut out and the faces cleaned.
- The specified fire-rated sealant goes in over any backing its detail requires.
- We hand over a list of locations and products for your records.
Before we arrive
- Let us know about stairs, lifts or work at height
- Mention any sign-in or site rules at work premises
- Mention if the joints have been sealed before
Ask for a quote
The more we know about the job, the more useful the quote. Let us know the location, the problem and roughly how many joints, and email photos if that is easy.
Read more
Quotes for fire rated sealant in New Barnet
Jobs vary more than people expect. What affects the quote:
- Access and height
- How many areas need sealing
- Any mould that needs treating
- The old material and how stubborn it is
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.
Helping us quote
Photos by email are helpful but not essential. Please mention:
- Where the job is, and your postcode
- The rough size of the job
- Pictures of the joints, sent by email
- Access, such as stairs, a lift or height
There’s no standard price list. Instead, we give you a clear price for your job. To arrange one, call 0345 464 0079 or send us an email.
Surface by surface
Flats and HMOs
In occupied buildings, we plan the order of work with you. Access to flats and common areas is agreed in advance to keep disruption down.
Service penetrations
Service penetrations are where new gaps often appear. Old or unsuitable filler comes out before the right sealant goes in with backing where the detail needs it.
What happens if it’s left?
For some gaps, sealant is not the right answer and another system is needed. Large holes, cable bundles and plastic pipes can call for batts, collars or wraps. If a gap isn’t suitable for sealant, we will tell you. In London conversions, one flat’s bathroom is often above another flat’s ceiling, and a slow leak from a failed seal can end up in the flat below. Dealing with it early is far simpler for homes in New Barnet.
The cost depends on how much there is to do, how much old material has to come out and access to the work. You will have a clear quote before any work starts, so you know where you stand.
Why book with us
- We leave the area clean and tidy
- Fully insured
- 20+ years of sealant experience
- 180+ five-star Google reviews
Can I do it myself?
Some sealant jobs are within reach of a careful DIYer, such as a straightforward joint indoors. The common mistakes are sealing over old sealant, sealing a damp joint and using far too much.
What a professional job adds is preparation and the right product. Joints are cleaned back to sound surfaces and dried, and the sealant is matched to the joint and its conditions, then guaranteed for a year.
Fire rated sealant around New Barnet
Commercial buildings in London often have strict access rules and limited loading, so out-of-hours working can be arranged where needed. There are hotels and other places to stay in and around New Barnet. Hotel work can be planned room by room, with out-of-hours working where needed.
If you look after a building such as St Mary's CofE Primary School, service openings in fire-resisting walls need checking after any refurbishment. New Barnet is in London, so parking needs planning: tell us about permits, visitor bays or off-street space when you book.
New Barnet is about 1 mile east of Barnet, in Greater London. New Barnet gets the same service as everywhere we cover: old sealant removed completely, careful preparation and a one-year guarantee. Our area takes in 764 places across Greater London, from the larger towns to small villages. You can also see our page for London, roughly 11 miles from New Barnet.
Every address in EN5, EN4 and N20 is covered for fire rated sealant. Local streets include York Road, Park Road and Henry Road, all of which we cover. We also cover the places around New Barnet: Barnet (1 mile west), Cockfosters (1 mile north-east), East Barnet (1 mile south-east), Underhill (1 mile west) and Whetstone (1 mile south). Further out, we also cover London (11 miles south), City of Westminster (9 miles south), Marylebone (9 miles south), Kensington (10 miles south), St Pancras (8 miles south) and Shoreditch (9 miles south-east).
What’s near New Barnet
Around New Barnet, our work takes us to homes and buildings near Trent School Cockfosters, East Barnet School and The Alexandra pub and the streets around them. New Barnet has its own railway station: New Barnet station. Other landmarks nearby include Spires Shopping Centre (1.6 miles north-west) and Francis Skaryna Belarusian Library and Museum (2 miles south). For a walk, there’s Greenhill Gardens and Darland's Lake.
Landlords, agents and businesses in New Barnet
Housing providers, facilities teams and property managers book us too. Several sites can go on one quote, and we’re fully insured.
In hotels, rooms out of use cost money, so the work can be planned room by room around your bookings where we can. Hotel work is part of what we do, alongside homes and businesses.
Your questions about fire rated sealant in New Barnet
Do you work for landlords with property near New Barnet station?
Yes, landlords and agents are among the people we work for, and several properties can go on one quote. You can phone 0345 464 0079 or email us with the details for a clear quote.
Is parking a problem for a job in New Barnet?
In much of London, parking needs planning: a visitor permit or a bay close to the door helps a lot, so mention what’s available when you book.
Are you ARBOMaster approved?
Yes. We are approved under the ARBOMaster scheme, the approved applicator scheme for Arbo sealants.
What should I tell you?
Where the job is, what the problem is and roughly how big it is. If you can, email a few pictures.
Can you work in occupied buildings?
Yes. We work in flats, HMOs, schools, offices and other commercial buildings, including occupied ones. We agree access and the order of work with you first.
How much does fire rated sealant cost in New Barnet?
It depends on the job, so we quote each one individually. To get one, call 0345 464 0079 or send us an email with a short description of the job.
What does intumescent mean?
Intumescent means it swells when heated, helping close the gap. Intumescent sealants are one kind of fire-rated sealant; the right one depends on the gap and what passes through it.
Will we have a record of what was sealed?
Yes. We record the locations we have sealed and the products used.
Signs you need fire rated sealant in New Barnet
A lot of fire stopping is out of sight: above ceilings, inside risers and behind panels. Out of view, damage sits unnoticed until someone inspects.
People normally contact us when they notice something like this:
- Old fire sealant that has split or come away
- Joints picked up in a fire-stopping survey
- Gaps filled with a product that is not fire-rated
- Seals cut through by electricians, plumbers or data installers
Community buildings like Holy Trinity Lyonsdown are part of the picture too: older buildings that have had new heating or wiring often have service gaps worth checking.
What your quote should include
- What the cure time is
- How the surfaces are prepared before sealing
- The length of the guarantee
- How hidden problems are handled