Greater London · England
Finchley Fire Rated Sealant
Our applicators work in Finchley on intumescent and fire-rated sealant around gaps, frames and service penetrations. Old sealant removed completely, joints prepared properly.
- Gaps filled with a product that is not fire-rated
- Seals cut through by electricians, plumbers or data installers
- Open holes round services passing through fire walls
DIY versus a professional finish
Too much sealant is as bad as too little. A thick, smeared bead looks untidy and doesn’t move well, and getting the depth right matters as much as the look.
The difference is mostly in the preparation and the product. We take joints back to clean, dry surfaces, and the sealant is matched to the joint and its conditions, then guaranteed for a year.
Fire rated sealant for homes and businesses in Finchley
Where services or frames pass through a fire-resisting wall or floor, the gap around them needs a fire-rated seal. Each gap is sealed to the product maker’s tested detail for its size and substrate. We work on plasterboard & masonry, door frames and service penetrations, and the jobs we see most are open holes round services passing through fire walls and gaps where walls meet ceilings or slabs.
London blocks of flats carry pipes and cables through walls and floors in their common parts and service risers. For managing agents and building owners in Finchley, that can mean fire-rated sealant around service openings as well as resealing in shared washrooms and kitchens.
Each job carries a 12-month guarantee, large or small.

- Where
- Finchley (N3, N2, N12, NW11)
- Wider area
- Greater London
- Cover
- One year on every job
- Price
- A clear quote up front
- Phone
- 0345 464 0079
- Page updated
- 26 October 2026
How we quote for fire rated sealant
Jobs vary more than people expect. The main factors:
- Working hours on commercial sites
- The product the joint needs
- How easy the joints are to reach
- Mould in or behind the old joints
Rather than a set price list, we price the job in front of us: how many joints, what’s in them now and how we reach them. You will know the price before we begin.
Asking for a quote
To make quoting easier, let us know:
- What the problem is, such as mould, gaps, leaks or cracking
- Any previous sealing or DIY work
- How we’d reach the joints
- How many joints, rooms or windows are involved
Asking for a quote is easy: tell us what needs doing and where and its rough size. Photos by email help us understand the job, and we’ll take it from there.
What happens if it’s left?
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 that doesn’t depend on other work. In a London flat, a failed joint rarely stays your problem alone: water can reach the neighbours below, and gaps in fire-rated joints affect the whole building.
What you pay reflects the work, not a rough estimate. That’s why we ask a few questions first.
Why book with us
- Every job guaranteed for a year
- Quality sealants from Arbo and Everbuild
- ARBOMaster approved applicator
- 4.9 on Google from 180+ five-star reviews
Read what affects the cost and what customers say.
Landlord and commercial work in Finchley
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.
We regularly work with letting and managing agents. Tell us the address, the job and how access works and we’ll give you a quote.
Fire rated sealant around Finchley
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, and gaps around services are often picked up there. We work to the specification you are given, installing the product to its tested details. Many London buildings have tight access and loading restrictions, and out-of-hours working is possible to arrange.
Finchley is in London, so parking needs planning: tell us about permits, visitor bays or off-street space when you book. For site and facilities teams at buildings such as Manorside Primary School, fire-stopping around service openings should be restored whenever new services go in.
Finchley is about 6 miles north of City of Westminster, in Greater London. Finchley gets the same service as everywhere we cover: the old material taken out, joints prepared properly and a 12-month guarantee. Our area takes in 764 places across Greater London, large and small. Our London page covers work nearby (8 miles or so).
Every address in N3, N2, N12 and NW11 is within our area for fire rated sealant. Fire rated sealant is available to properties on Station Road, Chaplin Square and Market Place and the roads around them. Being close to the B1462, Finchley is simple for us to get to for fire rated sealant. We also cover Church End (1 mile west), Woodside Park (1 mile north), North Finchley (1 mile north), Friern Barnet (2 miles north-east) and Oakleigh Park (2 miles north). We also work in nearby towns such as London (8 miles south-east), City of Westminster (6 miles south), Marylebone (6 miles south), Kensington (7 miles south), St Pancras (6 miles south-east) and Shoreditch (7 miles south-east).
Around Finchley
Around Finchley, our work takes us to homes and buildings near The Elephant Inn, Bishop Douglass School and Francis Skaryna Belarusian Library and Museum. Nearby too are Victoria Park (under half a mile north) and Woodhouse College (1 mile north-east). The nearest railway station is New Southgate station, about 1.9 miles north-east. Well-known places in the area include Finchley Memorial Hospital (under half a mile north-east) and Grand Arcade (1 mile north). Green spaces nearby include Highgate Hill and Lakeside Nature Reserve.
Finchley: your questions answered
Can you help a landlord with a rental near New Southgate station?
Yes, landlords and agents are among the people we work for, and several properties can be quoted together. You can ring 0345 464 0079 or email us with the details for a clear quote.
Do you cover Finchley for fire rated sealant?
Yes. We work across London and the South East, and Finchley is part of that. Just phone 0345 464 0079 or drop us an email with a few details of the job.
Does someone need to be in?
It depends on the job. Inside work needs someone to give us access, and for outside work we will agree access with you when we book.
Is it messy?
Not at all. We work neatly, protect the area around the joints and tidy up afterwards.
Do you take on fire stopping in schools and offices?
Yes. We regularly work in flats, HMOs, schools and offices while they’re in use and we plan access around the people using them. Out-of-hours work can be arranged.
Where are you based?
We work from Crawley. Our applicators cover Finchley.
Is it OK to seal over old sealant?
No. The old sealant always comes out first.
Do you have insurance?
Yes, we’re fully insured.
What we do, step by step
A visit follows a simple pattern: we look at the joints together, protect the area around them, do the work and clear up. Most jobs take from a few hours to a few days, depending on the number of gaps and the access. Parking in much of London is by permit or pay-and-display, so it helps to know what’s near you in Finchley. It helps if you can point us to a visitor permit or a bay close to the door.
- First we work through your list or survey, measuring each gap and checking what it’s formed in.
- Old or unsuitable sealant is cut out and the gap cleaned.
- Backing or fill is fitted where the product’s tested detail calls for it.
- Fire-rated or intumescent sealant is applied to the right depth and tooled.
- Locations and products are noted so you have them on file.
How to prepare
- Keep pets and children clear of the area while we work
- On commercial sites, let us know about site rules
- Move anything stored near the joints
How to get a quote
There’s no standard price list, because every job is different. Instead, we give you a clear price for your job. To arrange one, phone 0345 464 0079 or send us an email.
Advice
What the job involves on each surface
Plasterboard walls
In plasterboard walls, the condition of the board edge matters. Crumbling edges are cleaned back before the sealant goes in.
Service penetrations
A copper pipe, a cable and a plastic pipe can all need different fire-stopping details. We follow the manufacturer’s tested detail for each, and tell you if sealant alone is not the right fix.
Towns and villages near Finchley
More services for Finchley
Common problems we fix in Finchley
Buildings are refitted and reconfigured over the years. A house turned into flats or an HMO, or an office split into smaller units, brings new walls, new service routes and new gaps.
If you can see any of these, it’s time to have the joints looked at:
- Gaps flagged on a fire risk assessment
- Standard silicone or caulk in a fire-stopping gap
- Cracked or shrunken fire-rated sealant
- Gaps around pipes and cables through fire-resisting walls
If you let a flat or house near New Southgate station, new cables or pipes through a fire-resisting wall leave a gap that needs the right sealant.
Comparing quotes
- What happens if the job turns out different
- Whether you can choose the colour
- Whether the sealant suits the joint
- The length of the guarantee
