Greater London · England
Fire Rated Sealant in Addiscombe
Problem with your fire-stopping gaps in Addiscombe? We cut out the old, prepare the joints and apply the right sealant, and the work is guaranteed for a year.
- Sealant items on a fire risk assessment action list
- Damaged fire sealant left by other trades
- Linear gaps at the head of walls
The process
We work through the job in order: protect, prepare, seal, tidy. For most jobs that takes a few hours for a handful of gaps, and longer for a whole building and we leave things clean and tidy. Many London jobs are in flats, so we come ready for stairs, narrow hallways and shared entrances. 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.
- Anything that is not fit for the job comes out, and the gap is cleaned.
- Where the tested detail needs backing or fill, we fit 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.
Preparing for the visit
- Mention any sign-in or site rules at work premises
- Let us know if you’ve seen damp or leaks
- Tell us if parking is tricky
Getting a quote
Want a quote for fire rated sealant? Please ring 0345 464 0079 or drop us an email and tell us about the job. You will know what we plan to do, and what it will cost, before any work begins.
Related advice
Fire rated sealant for homes and businesses in Addiscombe
Intumescent sealant looks much like any other sealant until it gets hot; then it swells to help close the gap. The right product depends on the gap size, the substrate and what passes through, so we work to the manufacturer’s details. Typical jobs include seals cut through by electricians, plumbers or data installers and standard silicone or caulk in a fire-stopping gap, on door frames, plasterboard & masonry and service penetrations.
Commercial work in London comes with its own logistics: loading restrictions, building rules and tight access. Timings and access are agreed with the building before work starts in Addiscombe, and room-by-room programmes can be planned where needed.
Our work is backed for twelve months.
- Location
- Addiscombe (CR0, SE25, CR9)
- Wider area
- Greater London
- Guarantee
- 12 months on all our work
- Quote
- A clear quote up front
- Phone
- 0345 464 0079
- Updated
- 26 October 2026
What sealant work can’t fix
Some problems need a builder, plumber or other trade rather than us:
- Construction that does not provide fire resistance on its own
- Fire risk assessments, which need a qualified assessor
- Openings too large for sealant, which need batts, boards or another system
If in doubt, ring 0345 464 0079 or email us and we’ll say what we think.
Where we work in Addiscombe
- Flats & HMOs
- Service penetrations
- Pipe & cable gaps
- Door frames
- Linear gaps
- Plasterboard & masonry
Surface by surface
Masonry and concrete
For masonry and concrete, we use a product tested in that substrate. We clean out dust and debris before sealing so the sealant bonds.
Door frames
We deal with the gap around the frame, not the door. The door leaf, its seals and closer need a door specialist.
What affects the quote in Addiscombe
The quote reflects the job in front of us. We take into account:
- How easy the joints are to reach
- The number and length of the joints
- The product the joint needs
- Any working-time requirements on site
Commercial jobs are quoted on the same basis as homes: how much there is to do, how we reach it and what it needs. Call for a quick quote and we will go through it with you.
Helping us quote
There’s no need for technical detail. Just tell us:
- Any previous sealing or DIY work
- The problem you’ve noticed
- How many joints, rooms or windows are involved
- Pictures of the joints, sent by email
Getting a quote is simple: tell us what needs doing and where and its rough size. A few photos by email make the job easier to understand.
Landlords, agents and businesses in Addiscombe
Housing providers, facilities teams and property managers book us too in Addiscombe and across Greater London. Several sites can go on one quote.
For anyone letting property in or around Addiscombe, several properties can go on one quote. Send us the addresses and the work at each.
Also near Addiscombe
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Questions from Addiscombe
Is parking an issue for fire rated sealant in Addiscombe?
Parking in Addiscombe, as in most of London, takes a little planning: a visitor permit or a nearby bay makes the day run more smoothly.
I let a flat near Norwood Junction station. Can you help?
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’ll give you a fixed price before any work starts.
Will it make a mess?
Tidy work is part of the job. Nearby surfaces are protected, and the area is left clean when we finish.
Where is Mr Mastic based?
Our base is Crawley. Our area covers South East England, London and Scotland.
Do you hold any approvals?
Yes. We hold ARBOMaster approved applicator status and we’re fully insured too.
Can I choose the sealant colour?
Generally, yes. White, clear and grey are common, and other colours are available, and we agree the colour with you before we start.
What do you put in the joint?
The product depends on the job: sanitary silicone where it gets wet, and sealants suited to movement or weather elsewhere. We use products from Arbo and Everbuild.
Will we have a record of what was sealed?
Yes. You get a list of where we worked and what we used.
Signs you need fire rated sealant in Addiscombe
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’re asked about most:
- Holes left by a change of layout
- Gaps flagged on a fire risk assessment
- Old fire sealant that has split or come away
- Standard silicone or caulk in a fire-stopping gap
Letting a property close to Norwood Junction station? Then fire-rated sealant around pipes and cables through walls and floors needs making good whenever new services go through.
Questions to ask before booking
- When the joint can take water or movement
- How the joint is cleaned and prepared
- Who does the work, and how experienced they are
- Whether the sealant suits the joint
Commercial buildings in Addiscombe
Commercial buildings in London often have strict access rules and limited loading, so out-of-hours working can be arranged where needed. 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, which is often where open fire-stopping gaps are first noticed. We apply fire-rated sealant to the assessor’s or designer’s specification and the product’s tested details.
As a London address, Addiscombe can be tricky for parking: tell us about permits, visitor bays or off-street space when you book. For buildings such as St Mildred's Church, older buildings that have had new heating or wiring often have service gaps worth checking.
Addiscombe is about 2 miles north-east of Croydon, in Greater London. Homes, rented property, offices and hotels in Addiscombe can book us for fire rated sealant. The work is guaranteed for a year. Our Greater London coverage runs to 764 places, Addiscombe among them. We also work in London, about 8 miles from Addiscombe.
We work across the CR0, SE25 and CR9 postcode area for fire rated sealant. Fire rated sealant is available to properties on Grant Road, Capri Road and Coe Avenue and the roads around them. Being close to the A232, Addiscombe is easy for our applicators to reach. We also cover the places around Addiscombe: Shirley Oaks (1 mile east), Ashburton (1 mile north), Woodside (1 mile north), Shirley (1 mile east) and Monks Orchard (1 mile east). Further out, we also cover London (8 miles north), City of Westminster (10 miles north), Marylebone (10 miles north), Kensington (10 miles north-west), St Pancras (10 miles north) and Shoreditch (10 miles north).
Around Addiscombe
We work in homes and buildings around The Woodside Academy, The Cricketers pub and Ashburton Park and the streets around them. Addiscombe’s nearest station is Norwood Junction station, about 1.2 miles north of the centre. Well-known places in the area include St George's Walk (1.5 miles west) and Crystal Palace Museum (2.7 miles north). Not far away are Duppas Hill and Bramley Bank.
Why act early in Addiscombe
Squirting in whichever sealant is nearest does not make a fire seal. A fire-rated product only performs as tested when it’s installed to its tested detail, which is why we match the product and the method to each gap. In older London homes, water behind a failed joint soaks into brick and timber without much sign, and by the time it shows on a wall or ceiling in Addiscombe, the repair is bigger than the sealant job would have been.
The cost depends on how much there is to do, how hard the old material is to remove and how easy the joints are to reach. We give a clear quote before any work starts, so you know where you stand.
Why Addiscombe clients choose us
- Fully insured
- We leave the area clean and tidy
- Homes, businesses and hotels
- Every job guaranteed for a year
Take a look at how sealant jobs are priced and what customers say.