Greater London · England
Fire-rated sealant in Hornsey, Greater London
Intumescent and fire-rated sealant around gaps, frames and service penetrations for Hornsey, backed by a 12-month guarantee. Ask us for a quote.
- Sealant items on a fire risk assessment action list
- Gaps around pipes and cables through fire-resisting walls
- Open joints along the top of partitions
Fire rated sealant in Hornsey, done properly
Deciding which gaps need fire stopping isn’t our role; your assessor, designer or building control sets that out. Our part is applying the specified sealant carefully, to the right depth and with the right backing. Typical jobs include sealant items on a fire risk assessment action list and open joints along the top of partitions, on flats & HMOs, pipe & cable gaps and linear gaps.
London blocks of flats carry pipes and cables through walls and floors in their common parts and service risers. In Hornsey, building managers may need both fire-rated sealant around those openings and new sealant in shared washrooms.
You get a 12-month guarantee, the same in Hornsey as everywhere else we work.

- Where
- Hornsey (N8, N22)
- Wider area
- Greater London
- Guarantee
- One year on every job
- Price
- Quoted before any work starts
- Phone
- 0345 464 0079
- Page updated
- 26 October 2026
Your questions about fire rated sealant in Hornsey
Do you work in hotels near Hornsey?
Yes, hospitality work, including hotels, is part of what we do. Work can be planned room by room, and out-of-hours working can be arranged.
I let a flat near Hornsey station. Can you help?
Yes, rental work is part of what we do. You can ring 0345 464 0079 or email us with the address and a few details, and we’ll give you a fixed price before any work starts.
Will we have a record of what was sealed?
Yes. You get a list of where we worked and what we used to keep with your fire safety documents.
Are you fully insured?
Yes. We are fully insured.
How long does the job take?
That depends on how much there is to do, but as a guide it takes a few hours for a handful of gaps, and longer for a whole building. We will give you a better idea when we quote.
How much does fire rated sealant cost in Hornsey?
It depends on the job, so we quote each one individually. To get one, ring 0345 464 0079 or send us an email with a short description of the job.
Do you hold any approvals?
Yes. We’re ARBOMaster approved, the scheme for applicators of Arbo sealants.
Will it make a mess?
No. We protect the surfaces around the joints, and we tidy up before we go.
What sealant work cannot fix
Sealant isn’t the answer to every problem, and we’d rather say so up front. Sealant won’t put right:
- Construction that does not provide fire resistance on its own
- Issuing a fire rating or certificate for a building
- Deciding what fire stopping a building needs
If in doubt, ring 0345 464 0079 or drop us an email and we’ll say what we think.
Surfaces we seal
- Linear gaps
- Flats & HMOs
- Service penetrations
- Pipe & cable gaps
- Plasterboard & masonry
- Door frames
What the job involves on each surface
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.
Plasterboard walls
Service holes in plasterboard are often rough and oversized. Where a hole is bigger than the sealant’s tested range, it needs another approach, and we will tell you.
Workplaces and buildings in Hornsey
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, so out-of-hours working can be arranged where needed.
Community buildings like Church of Holy Innocents are part of the picture too: older buildings that have had new heating or wiring often have service gaps worth checking. Hornsey is in London, so parking needs planning: tell us about permits, visitor bays or off-street space when you book. If you let a flat or house near Hornsey station, fire-rated sealant around pipes and cables through walls and floors needs making good whenever new services go through.
Hornsey is about 3 miles east of Finchley, in Greater London. Homes, rented property, offices and hotels in Hornsey is covered for fire rated sealant, old or new, large or small. The work is guaranteed for a year. We cover 764 towns and villages across Greater London, from the larger towns to small villages. For nearby work, see our London page, about 6 miles away.
We work across the N8 and N22 postcode area for fire rated sealant and the streets around it. You’ll find streets such as High Street, Brandon Place and Cross Lane. Other places close to Hornsey include Turnpike Lane (1 mile east), Crouch End (1 mile south-west), Stroud Green (1 mile south-east), Wood Green (1 mile north-east) and Noel Park (1 mile north-east). Within a short drive, we also cover London (6 miles south), City of Westminster (5 miles south), Marylebone (5 miles south), Kensington (7 miles south-west), St Pancras (4 miles south) and Shoreditch (5 miles south).
Near you in Hornsey
Typical jobs here are in homes near Great Northern Railway pub, Priory Park and Greek Secondary School of London. Hornsey has its own railway station: Hornsey station. Nearby you will also find Hornsey Central Hospital (0.7 miles west) and Broomfield House Museum (2 miles north). Green spaces nearby include Darland's Lake and Highgate Hill.
DIY versus a professional finish
The biggest DIY mistake is sealing over old sealant. New silicone will not bond to old, so it peels away and traps moisture behind it. All the old material has to come out first.
Not every job suits DIY: work at height, external movement joints, fire-rated sealant and large areas need the right product, the right access and the right method.
Places near Hornsey
Also in Hornsey
How we quote for fire rated sealant
We don’t publish a price list. The quote depends on:
- The number and length of the joints
- The number of rooms or windows
- Working hours on commercial sites
- Mould in or behind the old joints
The cost depends on the amount of work, how hard the old material is to remove and access to the work. We give a clear quote before any work starts.
What to tell us for a quote
To make quoting easier, let us know:
- Any access issues, like height or stairs
- A few pictures by email, if you can
- Where the job is, and your postcode
- The rough size of the job
For fire rated sealant in Hornsey, phone 0345 464 0079 or email us. Tell us what the problem is and where, and you will get a clear quote before we start.
What happens on the day
There’s no need to move everything out before we come, just the space around the work. We protect the rest, and the job takes a few hours for a handful of gaps, and longer for a whole building in most cases. In Hornsey, flats, stairs and shared entrances are part of the routine. Mention any building rules, key holders or managing agents when you book.
- We begin by agreeing the list of gaps from your assessor’s or designer’s requirements.
- Each gap is measured and its substrate and service noted.
- Unsuitable material such as ordinary foam or silicone is cut out and the gap cleaned.
- The specified fire-rated sealant goes in over any backing its detail requires.
- Every location is recorded with the product used for your files.
Before we arrive
- Mention any tricky access
- Let us know if you’ve seen damp or leaks
- Mention any sign-in or site rules at work premises
Get a quote
Asking for a quote is easy: let us know what needs doing and where. A few pictures by email make the job easier to understand.
Advice
Work for landlords, hotels and businesses
Mouldy or split sealant often shows up at the end of a tenancy, and it’s easy to sort out between tenants. We can quote for more than one property at once.
If you manage several properties in or around Hornsey, jobs at different addresses can go on one quote. Just tell us the addresses and what each one needs.
Looking after it afterwards
Looking after new joints is easy, and it makes a real difference:
- Keep pictures of seals that will be hidden
- Make resealing part of every contractor’s brief
- Flag any open gap you spot round a pipe or cable
- Do not paint over fire sealant until it has cured
Look at the sealed gaps as part of your routine walk-rounds. Watch for cracking, gaps or seals that have been disturbed and get them seen to.
Leave a fire-stopping gap open and smoke can move through the building much more easily. Sealing it early is a simple step to take.
