Greater London · England
Fire Rated Sealant in Hendon
Intumescent and fire-rated sealant around gaps, frames and service penetrations for Hendon, backed by a 12-month guarantee. Ask us for a quote.
- Fire stopping disturbed by later work
- Holes left by a change of layout
- Gaps flagged on a fire risk assessment
How we handle fire rated sealant in Hendon
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 the sealant goes in to the depth the product’s details set. We work on service penetrations, flats & HMOs and plasterboard & masonry, and common reasons people get in touch are holes left by a change of layout and standard silicone or caulk in a fire-stopping gap.
London’s offices, shops, hotels, student accommodation and blocks of flats all have joints to look after, whether that is washroom resealing or fire-rated sealant around service openings. Out-of-hours working can be arranged where a building in Hendon cannot close.
There’s a 12-month guarantee on every job.
- Location
- Hendon (NW4, NW9, NW2, NW11)
- Region
- Greater London
- Cover
- One year on every job
- Quote
- Quoted before any work starts
- Telephone
- 0345 464 0079
- Page updated
- 26 October 2026
What we can’t put right
In fairness, some problems need a different trade:
- Doors that are not fire doors in the first place
- Issuing a fire rating or certificate for a building
- Construction that does not provide fire resistance on its own
If you are not sure, just ring 0345 464 0079 or drop us an email and we’ll give you a straight answer before you book.
Where we work in Hendon
- Door frames
- Plasterboard & masonry
- Linear gaps
- Service penetrations
- Pipe & cable gaps
- Flats & HMOs
What the job involves on each surface
Door frames
The gap between a door frame and the wall around it needs sealing as well as the door itself. We fill it with a fire-rated product suited to the materials either side.
Service penetrations
Different services need different details: metal pipes, cables and plastic pipes aren’t treated the same. Each one is sealed to the product’s tested detail, and tell you if sealant alone is not the right fix.
DIY versus a professional finish
Overfilling a joint is a classic DIY mistake. A heavy bead looks messy and copes badly with movement, and getting the depth right matters as much as the look.
Not every job suits DIY: high-level joints, fire-rated gaps, external movement joints and big jobs call for the right materials, safe access and experience.
For landlords and businesses
We regularly work with letting and managing agents. Send the address, what’s needed and the access arrangements.
Letting agents and landlords in Hendon can book us as well as householders. Resealing between tenancies is a simple way to keep a property in good order.
Commercial buildings in Hendon
There are hotels and other places to stay in and around Hendon. Hotel work can be planned room by room, with out-of-hours working where needed. Many London buildings have tight access and loading restrictions, and out-of-hours working is possible to arrange.
If you look after a church, hall or community building such as Christ Church Hendon, older buildings that have had new heating or wiring often have service gaps worth checking. As a London address, Hendon can be tricky for parking: tell us about permits, visitor bays or off-street space when you book.
Hendon is about 3 miles north-west of Hampstead, in Greater London. If you need fire rated sealant in Hendon, please call 0345 464 0079 or drop us an email for a quick quote. We cover Greater London from our Crawley base. Across Greater London, we cover 764 places, Hendon among them. There’s also a page for London, roughly 8 miles from Hendon.
Jobs for fire rated sealant in NW4, NW9, NW2 and NW11 is quoted and booked the same way as anywhere else. Fire rated sealant is available to properties on Church Road, Station Road and Sydney Grove and the roads around them. Being close to the A5 and A41, Hendon is easy for our applicators to reach for fire rated sealant. Neighbouring places we cover for fire rated sealant include The Burroughs (1 mile north-west), Brent Cross (1 mile south), Staples Corner (1 mile south), West Hendon (1 mile west) and The Hyde (1 mile west). We also work in nearby towns such as London (8 miles south-east), City of Westminster (6 miles south-east), Marylebone (6 miles south-east), Kensington (6 miles south), St Pancras (6 miles south-east) and Shoreditch (7 miles south-east).
Local landmarks in Hendon
In Hendon, that means homes and buildings near Hasmonean Primary School, The White Bear pub and Kisharon College and the streets around them. Hendon’s nearest station is Hendon station, about 0.7 miles south-west of the centre. A little further out are Brent Cross Shopping Centre (0.5 miles south) and St Andrew's Hospital (1.6 miles south). The countryside around Hendon includes Darland's Lake and Parliament Hill.
What we do, step by step
We keep the work tidy and contained to the area we’re working on, so you can get on with your day. The job generally takes anything from a few hours to several days, depending on how many gaps there are. Parking in much of London is by permit or pay-and-display, so it helps to know what’s near you in Hendon. A visitor permit or a nearby bay makes the visit run more smoothly.
- 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.
- The specified fire-rated sealant goes in over any backing its detail requires.
- We hand over a list of locations and products.
Getting ready for the visit
- Let us know if you’ve seen damp or leaks
- Clear items away from the joints we are working on
- For indoor joints, keep the area dry beforehand if you can
Get a quote
Quotes start with a quick conversation. Describe the problem, the location and the size of the job, and we will talk you through what we’d do. Whenever you’re ready, ring 0345 464 0079 or drop us an email.
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Signs you need fire rated sealant in Hendon
Gaps also open up as buildings move: a seal that cracks or pulls away leaves a path for smoke. Knocks, maintenance and building work damage it further.
Most people get in touch after spotting something like this:
- Open joints along the top of partitions
- Cracked or shrunken fire-rated sealant
- New service routes left unsealed after building work
- Open gaps behind door architraves
If you let a flat or house near Hendon station, new cables or pipes through a fire-resisting wall leave a gap that needs the right sealant.
Questions to ask before booking
- Whether you can choose the colour
- What happens if they find a problem under the old sealant
- The length of the guarantee
- Whether all the old sealant comes out first
More services for Hendon
Hendon questions
Is parking a problem for a job in Hendon?
In much of London, parking needs planning: a visitor permit or a bay close to the door helps a lot.
Can you help a landlord with a rental near Hendon station?
Yes, rental work is part of what we do. Just ring 0345 464 0079 or send us an email and tell us about the property, and we’ll send you a clear quote.
What sealant do you use?
Quality sealants from brands including Arbo and Everbuild, picked for each joint. We explain the product when we quote.
Can I do it myself?
That depends on the joint. High-level, external movement and fire-rated joints are professional jobs.
Is it OK to seal over old sealant?
No. The old sealant always comes out first, so the new sealant bonds properly.
How long does fire rated sealant take?
A typical job takes a few hours for a handful of gaps, and longer for a whole building, including preparation and clearing up. Your quote will say how long we expect yours to take.
Do you work in Hendon?
We do. Our applicators work in Hendon.
Do the sealants smell?
That depends on the sealant. Some products have a noticeable smell, others very little.
What affects the cost of fire rated sealant
Your quote is based on your job. We take into account:
- Whether old sealant or filler has to be cut out
- When we can work, for business premises
- The amount of work
- Whether there’s mould to deal with
Some things make a job bigger or smaller: the old material and how easily it comes out, whether mould needs treating, and whether we need extra access for height. We take all of that into account in your quote.
What we need to know
A few details help us give you an accurate quote. When you ask for a quote, tell us:
- Pictures of the joints, sent by email
- How we’d reach the joints
- The address or postcode of the job
- Any previous sealing or DIY work
Call for a quick quote, or email us if that’s easier. Describe what needs sealing and we will explain what’s involved before giving you a price.