Greater London · England
South Bank Fire Rated Sealant
Professional fire rated sealant in and around South Bank, with old sealant always removed completely and a 12-month guarantee.
- Joints picked up in a fire-stopping survey
- Gaps left after a refit or conversion
- Gaps around pipes and cables through fire-resisting walls
DIY sealant or a professional job?
If you’ve already had a go yourself, that is fine. We remove it and do the joint properly.
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.
Fire rated sealant for homes and businesses in South Bank
We can work through a building room by room or floor by floor. It gives you a list to keep with the building’s fire safety documents. If you’re dealing with open joints along the top of partitions and new service routes left unsealed after building work, we can help, on door frames, service penetrations and linear gaps alike.
London blocks of flats carry pipes and cables through walls and floors in their common parts and service risers. In South Bank, building managers may need both fire-rated sealant around those openings and new sealant in shared washrooms.
The work is covered for a year after we finish. If there’s a problem with it, please call 0345 464 0079 or send us an email.
- Place
- South Bank (SE1, WC2E, WC2N)
- Wider area
- Greater London
- Guarantee
- 12 months on all our work
- Quotes
- A clear price before any work starts
- Phone
- 0345 464 0079
- Page updated
- 26 October 2026
For landlords and businesses
A neglected joint can let water reach the structure, which is a bigger problem in a rented property. Resealing at the right time is simple maintenance.
We regularly work with letting and managing agents. Tell us the address, the job and how access works.
Common questions in South Bank
Is parking an issue for fire rated sealant in South Bank?
London parking needs a little planning, so let us know about permits, bays or a driveway when you book. That way the visit can be planned around it.
Do you work for landlords with property near London Waterloo station?
Yes, rental work is part of what we do. You can phone 0345 464 0079 or drop us an email with the address and a few details, and we will give you a fixed price before work begins.
Where are you based?
Mr Mastic is based in Crawley. We cover South Bank and the rest of Greater London, along with the rest of our area.
Do I have to be there?
It depends on the job. Inside work needs someone to give us access.
Do you offer different sealant colours?
Generally, yes. White, clear and grey are common, and other colours are available for many products, and we agree the colour with you before any work starts.
Is it messy?
No. The area is protected while we work and cleaned up afterwards.
Is it OK to seal over old sealant?
No, it will not last. It may look fine at first, but the new bead soon lifts. The old sealant has to come out completely.
Is intumescent sealant the same as fire-rated sealant?
Intumescent means it swells when heated. Intumescent sealants are one kind of fire-rated sealant; which product suits depends on the gap, the substrate and the service.
Towns and villages near South Bank
What else we do in South Bank
Commercial buildings in South Bank
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 South Bank. Hotel work can be planned room by room, with out-of-hours working where needed.
If you look after a building such as Oasis Academy Johanna, gaps opened by contractors for new cabling are a common finding in schools and offices. As a London address, South Bank can be tricky for parking: tell us about permits, visitor bays or off-street space when you book. For buildings such as St John's Church, older buildings that have had new heating or wiring often have service gaps worth checking.
South Bank is about 1 mile west of London, in Greater London. Our applicators cover fire rated sealant for homes and businesses in South Bank and the surrounding area. We cover 764 towns and villages across Greater London, large and small.
Here we cover the SE1, WC2E and WC2N postcode area for fire rated sealant. Whether your property is on York Road, Spur Road and Lower Road or anywhere close by, our applicators can take on the job. South Bank sits on or near the A301 and A302, which makes travel easy. We also cover Waterloo (1 mile south-east), Adelphi (1 mile north-west), Charing Cross (1 mile north-west), Temple (1 mile north-east) and Aldwych (1 mile north). Within a short drive, we also cover Kensington (4 miles west), Walthamstow (7 miles north-east), Hampstead (4 miles north-west), Ruislip (14 miles west), Stockwell (3 miles south) and Orpington (13 miles south-east).
Local landmarks in South Bank
Around South Bank, our work takes us to homes and buildings near Jubilee Gardens, The Hole In The Wall pub and The BFI Reuben Library, among other places. You will also find St Andrew's and St John's Church of England Primary School (less than half a mile east) and London Nautical School (less than half a mile north-east). There’s a railway station in South Bank itself: London Waterloo station. Other landmarks nearby include Florence Nightingale Museum (less than half a mile south) and Royal Waterloo Hospital for Children and Women (under half a mile north-east). Open spaces near South Bank include Barnsbury Wood and St. James's Park Lake.
Why deal with it now?
An open gap in a fire-resisting wall is a route for smoke and fire. Sealing it properly restores what the wall was there to do, and the work involved is often modest. Converted houses in London often have a bathroom above someone else’s living room, and a slow leak from a failed seal can end up in the flat below. Dealing with it early is far simpler.
The cost depends on the size of the job, 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 choose Mr Mastic in South Bank
- 180+ five-star Google reviews
- Homes, businesses and hotels
- ARBOMaster approved applicator
- We leave the area clean and tidy
See what affects the cost or our reviews.
What we do, step by step
All our tools and materials come with us in the van. Once we have agreed what’s being done, the area is protected and the work begins. It normally takes from a few hours to a few days, depending on the number of gaps and the access. In South Bank, flats, stairs and shared entrances are part of the routine. Mention any building rules, key holders or managing agents when you book.
- We go through the gaps on your list or survey and check each one’s size and substrate.
- Old or unsuitable sealant is cut out and the gap cleaned.
- We put in whatever backing or fill the product detail specifies.
- Fire-rated or intumescent sealant is applied to the right depth and tooled.
- Finally, we list where we worked and what we used, for your records.
Getting ready for the visit
- Try not to wet indoor joints just before the visit
- Mention any sign-in or site rules at work premises
- Clear the area around the work
How to get a quote
For a quote, phone 0345 464 0079 or email us and tell us where the job is and what the problem looks like. We will give you a clear price before any work starts.
Advice
Different surfaces, different methods
Plasterboard walls
In plasterboard walls, the condition of the board edge matters. Loose material is removed so the sealant has a firm edge.
Flats and HMOs
Flats and HMOs rely on fire separation between homes and the common parts. We seal the gaps your assessor has identified.
What affects the quote in South Bank
You’ll get a clear quote before any work starts. It’s based on:
- The old material and how stubborn it is
- The number and length of the joints
- Whether there’s mould to deal with
- How many areas need sealing
Doing several joints on one visit is normally more efficient than separate visits. You will get one clear quote for the whole job.
Asking for a quote
A few details help us give you an accurate quote. When you get in contact, it helps to mention:
- Where the job is, and your postcode
- The type of property
- Roughly how big the job is
- A few photos by email, if you can
Asking for a quote is easy: let us know the job and the location and its rough size. A few photos by email make the job easier to understand, and we’ll come back to you with a quote.
What sealant work cannot fix
We will always be straight with you, so here’s what sealant cannot fix:
- Openings too large for sealant, which need batts, boards or another system
- Walls or floors that weren’t built to resist fire
- Sign-off of the building, which sits with building control or your assessor
If you’re not sure, just ring 0345 464 0079 or drop us an email and we’ll give you a straight answer before booking.
Joints and surfaces we work on
- Service penetrations
- Pipe & cable gaps
- Door frames
- Plasterboard & masonry
- Linear gaps
- Flats & HMOs