Greater London · England
Blackfriars Fire Rated Sealant
Intumescent and fire-rated sealant around gaps, frames and service penetrations for Blackfriars, backed by a one-year guarantee. Call for a quick quote.
- Old fire sealant that has split or come away
- Fire stopping disturbed by later work
- New service routes left unsealed after building work
How we handle fire rated sealant in Blackfriars
Until it’s heated, intumescent sealant behaves like an ordinary sealant; in a fire it expands into the joint. Which product suits a gap depends on its width, the materials either side and what runs through it, so we work to the manufacturer’s details. Typical jobs include open holes round services passing through fire walls and damaged fire sealant left by other trades, on door frames, flats & HMOs and plasterboard & masonry.
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. Where a building in Blackfriars needs to stay open, work can be planned outside normal hours.
The work is covered for a year after we finish. If anything isn’t right with it, call 0345 464 0079 or email us.
- Where
- Blackfriars (SE1, EC1M, EC1N)
- Wider area
- Greater London
- Cover
- 12 months on all our work
- Price
- A clear price before work begins
- Telephone
- 0345 464 0079
- Updated
- 26 October 2026
Surface by surface
Door frames
A door can only do its job if the gap behind its frame is sealed too. We fill it with a fire-rated product suited to the materials either side.
Service penetrations
Pipes, cables and ducts passing through fire-resisting walls and floors each leave a gap. We seal it with a product tested for that service and gap size.
Work for landlords, hotels and businesses
We regularly work with letting and managing agents. Tell us the address, the job and how access works.
Hotels need rooms back in use, so we plan the work room by room around your bookings where we can. Hotel work is part of what we do, alongside homes and businesses.
Commercial buildings in Blackfriars
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 work to the specification you’re given, installing the product to its tested details. There are hotels and other places to stay in and around Blackfriars. For hotels, a room-by-room programme keeps most rooms in use while the work goes on.
As a London address, Blackfriars can be tricky for parking: let us know about parking bays, permits or a driveway. If you look after a church, hall or community building such as St Ann Blackfriars, older buildings that have had new heating or wiring often have service gaps worth checking.
Blackfriars is about 1 mile north-west of London, in Greater London. For fire rated sealant in and around Blackfriars, it’s easy to get a quote: please call 0345 464 0079 or email us. We cover Greater London from our Crawley base, Blackfriars included. We cover 764 towns and villages across Greater London.
Postcode districts we cover here for fire rated sealant: SE1, EC1M and EC1N. That includes homes and businesses on Oat Lane, Bear Lane and Shoe Lane and the roads around them. You will find Blackfriars on the A4 and A40, so it’s easy for us to get to with everything needed for fire rated sealant. We also cover the places around Blackfriars: Temple (1 mile west), Temple Bar (1 mile west), Bankside (1 mile south-east), Smithfield (1 mile north) and Clare Market (1 mile west). Within a short drive, we also cover Kensington (4 miles west), Walthamstow (6 miles north-east), Hampstead (4 miles north-west), Ruislip (14 miles west), Brompton (3 miles south-west) and Stockwell (3 miles south).
Around Blackfriars
We work in homes and buildings around Barts Health Archives, St Mary-at-Hill and St Alban's Church of England Primary School, among other places. Nearby too are Bernie Spain Gardens (less than half a mile south-west), London Nautical School (0.5 miles south-west) and The Black Friar pub (within half a mile south-east). Blackfriars has its own railway station: London Blackfriars station. Nearby you’ll also find Montfichet's Tower (less than half a mile north-east) and St Brides Crypt Museum (within half a mile north-west). For a walk, there’s Barnsbury Wood and St. James's Park Lake.
Quotes for fire rated sealant in Blackfriars
The quote reflects the job in front of us. We take into account:
- Which sealant suits the joint
- When we can work, for business premises
- How much there is to do
- Access and height
Leaving a failed joint usually makes the job bigger, not smaller, because water and mould keep working on it. If you’re not sure whether it needs doing, ring 0345 464 0079 or email us for an honest opinion and a quote.
What to tell us for a quote
Before you ask for a quote, have a think about:
- How many joints, rooms or windows are involved
- How we’d reach the joints
- The address or postcode of the job
- If it’s domestic, commercial or a hotel
Every job is quoted individually. Simply ring 0345 464 0079 or email us and describe the job and send photos if you have them.
When to call us in Blackfriars
Buildings are refitted and reconfigured over the years. Conversions to flats and HMOs, and office refits, create new walls and new routes for services, with gaps to match.
These are the problems we are asked about most:
- Old fire sealant that has split or come away
- Joints picked up in a fire-stopping survey
- Gaps where walls meet ceilings or slabs
- Unsealed gaps where pipes and cables go through a wall
For site and facilities teams at buildings such as Mercers' School, gaps opened by contractors for new cabling are a common finding in schools and offices.
What to look for in a quote
- Is VAT in the price?
- Which colour the sealant will be
- Whether the sealant suits the joint
- Whether they seal over old material or remove it
Places near Blackfriars
Also in Blackfriars
DIY sealant or a professional job?
A careful DIYer can reseal a simple joint, like a short, easy-to-reach joint indoors. The common mistakes are sealing over old sealant, sealing a damp joint and using far too much.
Too much sealant is as bad as too little. A heavy bead looks messy and copes badly with movement, and the joint depth matters as much as the finish.
Your questions about fire rated sealant in Blackfriars
Do you work for hotels and guest houses in Blackfriars?
Yes, we work for hotels as well as homes and businesses. Rooms can be done a few at a time, so the building stays open.
Is parking an issue for fire rated sealant in Blackfriars?
In much of London, parking needs planning: a visitor permit or a nearby bay makes the day run more smoothly.
Do you hold any approvals?
Yes. We are ARBOMaster approved, the scheme for applicators of Arbo sealants.
Can I add another job to the visit?
Yes, we can. Several rooms, windows or areas can go on one quote.
Will there be a smell?
There can be a smell while the sealant cures, but it fades. Ventilation helps.
Is it OK to seal over old sealant?
No, because it fails. The old sealant always comes out first.
Can ordinary silicone be used in a fire-stopping gap?
No. Ordinary silicone, caulk or foam isn’t tested as fire stopping. We cut it out and reseal with a fire-rated product.
Do you guarantee your work?
Yes. Each job is guaranteed for twelve months, large or small.
Leave it or put it right?
An open gap in a fire-resisting wall is a route for smoke and fire. A proper seal lets the wall do its job again, and the sealing itself is often a contained piece of 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.
Commercial jobs are quoted on the same basis as homes: the amount of work, the access and the products needed, along with when we can work on site. Ask us for a quote and we’ll go through it with you.
Why us?
- Tidy, careful work
- 180+ five-star Google reviews
- ARBOMaster approved applicator
- Homes, businesses and hotels
See our cost guide and what customers say.
The process
All our tools and materials come with us in the van. After a quick look at the joints together, we protect the area and start. Most jobs take a few hours for a handful of gaps, and longer for a whole building. Parking in much of London is by permit or pay-and-display, so it helps to know what’s near you in Blackfriars. A visitor permit or a nearby bay makes the visit run more smoothly.
- Before starting, we go through the specification or action list with you.
- Each gap is measured and its substrate and service noted.
- Any non-fire-rated filler is removed.
- We fit backing where needed and apply the fire-rated sealant to depth.
- Every location is recorded with the product used for your records.
Preparing for the visit
- Let us know about earlier repairs to the joints
- Mention any leaks or damp you’ve noticed
- Clear the area around the work
Get a quote
To get a quote, ring 0345 464 0079 or send us an email and tell us where the job is and what the problem looks like. You’ll have a clear quote before any work starts.