Greater London · England
Horn Park Fire Rated Sealant
Fire-stopping gaps in Horn Park need attention? We cut out the old, prepare the joints and apply the right sealant, and the work is guaranteed for a year.
- Linear gaps at the head of walls
- Damaged fire sealant left by other trades
- Unsealed gaps around fire door frames
What affects the cost of fire rated sealant
There’s no set price list. The quote depends on:
- The size of the job
- The type of sealant required
- The old material and how stubborn it is
- The number of rooms or windows
A failed joint rarely gets cheaper to fix by waiting, because water and mould keep working on it. If you are not sure whether it needs doing, phone 0345 464 0079 or send us an email for an honest opinion and a quote.
Asking for a quote
Photos by email are helpful but not essential. Please mention:
- Where the job is, and your postcode
- What’s wrong with the joints now
- If it’s domestic, commercial or a hotel
- Whether it has been sealed before
Call for a quick quote, or send an email if you’d rather. Tell us about the joints that need doing and we’ll explain what’s involved and give you a clear quote.
About our fire rated sealant in Horn Park
Filling a fire-stopping gap with standard silicone or caulk does not make it fire-rated. We cut out the wrong material and reseal with a fire-rated product tested for that kind of gap. If you are dealing with unsealed gaps where pipes and cables go through a wall and new service routes left unsealed after building work, we can help.
London blocks of flats carry pipes and cables through walls and floors in their common parts and service risers. For managing agents and building owners in Horn Park, that can mean fire-rated sealant around service openings as well as resealing in shared washrooms and kitchens.
The work is guaranteed for twelve months. If there’s a problem with our work within the year, let us know and we will sort it.
- Place
- Horn Park (SE12, SE9, SE3)
- Wider area
- Greater London
- Guarantee
- One year on every job
- Quotes
- Quoted before any work starts
- Phone
- 0345 464 0079
- Page updated
- 26 October 2026
Workplaces and buildings in Horn Park
Many London buildings have tight access and loading restrictions, and out-of-hours working is possible to arrange. 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 are given, installing the product to its tested details.
Community buildings like Church of St Saviour are part of the picture too: older buildings that have had new heating or wiring often have service gaps worth checking. As a London address, Horn Park can be tricky for parking: let us know about parking bays, permits or a driveway.
Horn Park is about 1 mile west of Eltham, in Greater London. We provide fire rated sealant to homeowners, landlords and businesses in Horn Park and nearby, as part of our work across Greater London. Horn Park is one of 764 places in Greater London we cover for fire rated sealant. For nearby work, see our London page, about 6 miles away.
Postcode districts we cover here for fire rated sealant: SE12, SE9 and SE3. Streets in the area include Winn Road, Horsa Road and Guibal Road, all of which we cover. We also cover the places around Horn Park: Middle Park (1 mile east), Lee (1 mile north-west), Mottingham (1 mile south-east), Chinbrook (1 mile south) and Grove Park (1 mile south). We also work in nearby towns such as London (6 miles north-west), City of Westminster (9 miles north-west), Marylebone (9 miles north-west), Kensington (10 miles west), St Pancras (8 miles north-west) and Shoreditch (7 miles north-west).
Around Horn Park
In Horn Park, that means homes and buildings near Manor House Gardens, Colfe's School and Harris Academy Greenwich. For rail, the closest station is Lee station, roughly 0.5 miles west of the centre. Well-known places in the area include Greenwich Castle (2.4 miles north-west) and Lewisham Shopping Centre (1.9 miles north-west). The countryside around Horn Park includes Summer Hill and Birdbrook Road Nature Reserve.
Questions from Horn Park
Do you work for landlords with property near Lee station?
Yes, rental work is part of what we do. You can ring 0345 464 0079 or drop us an email with the address and a few details, and we will give you a fixed price before we start.
Is Horn Park in your area for fire rated sealant?
Yes. Our work covers London and the South East, and Horn Park is part of that. Just call 0345 464 0079 or send us an email with a few details of the job.
Can I do it myself?
That depends on the joint. Work at height, movement joints, fire-rated gaps and large areas are best left to a professional.
Do you remove the old sealant?
Yes. Sealing over old sealant is the main reason resealing fails early, so we never do it.
Where are you based?
Mr Mastic is based in Crawley. We cover Horn Park and the rest of Greater London.
Do you have insurance?
Yes. Mr Mastic is fully insured, with over 20 years’ experience in sealant work.
Do you take on fire stopping in schools and offices?
Yes. Flats, HMOs, offices, schools and other occupied buildings are all part of our work. The order of work and access are planned with you.
What does fire rated sealant cost?
There’s no set price, as it depends on the job: how much there is, what’s there now, how we reach it and what it needs. You will get a clear quote before any work starts.
Places near Horn Park
Other services in Horn Park
How the job changes by surface
Door frames
Our work is the joint between frame and wall. Doors, seals and closers are for a door specialist and we will mention anything we notice.
Flats and HMOs
Working in occupied flats needs some planning. We agree access to each flat and the common parts before work begins so residents know what to expect.
How it works
At the end, we look at the finished work together and tell you how long to leave it. The work normally takes anything from a few hours to several days, depending on how many gaps there are, depending on the amount of work. In Horn Park, as in most of London, parking needs a little planning. A visitor permit or a nearby bay makes the visit run more smoothly.
- Access to each area is agreed so the work can run in order.
- We take out any damaged or unsuitable sealant.
- Dust and loose debris are cleaned from each gap.
- The fire-rated or intumescent sealant is applied and tooled to the tested detail.
- We record what was done and flag anything that needs a different system.
Getting ready for the visit
- Plan for the work area to be out of bounds to pets and children
- For indoor joints, keep the area dry beforehand if you can
- On commercial sites, let us know about site rules
How to get a quote
Asking for a quote is easy: tell us what needs doing and where. Photos by email help us understand the job.
Related advice
Can I do it myself?
Some jobs are best left to a professional: work at height, external movement joints, fire-rated sealant and large areas need the right product, the right access and the right method.
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.
What we’re called out for in Horn Park
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.
The most common problems we see are:
- Fire seals that have cracked with movement
- Open holes round services passing through fire walls
- Fire stopping disturbed by later work
- Gaps filled with a product that is not fire-rated
Schools such as Horn Park Primary School are buildings too, and gaps opened by contractors for new cabling are a common finding in schools and offices.
Before you book anyone
- What guarantee comes with the work
- When the joint can take water or movement
- What product goes in the joint
- Whether you can choose the colour
Landlords, agents and businesses in Horn Park
We also work for property managers and facilities teams. Several sites can go on one quote, and we are fully insured.
Hotels need rooms back in use, so the work can be planned room by room around your bookings where we can. We have worked in hotels as well as homes and businesses.
Why it’s worth doing now in Horn Park
An unsealed gap lets smoke and fire get round a wall that was built to hold them back. Sealing it properly restores what the wall was there to do, and the work involved is often modest. In London conversions, one flat’s bathroom is often above another flat’s ceiling, and a slow leak from a failed seal can end up in the flat below. Dealing with it early is far simpler for homes in Horn Park.
What it costs depends on the size of the job, how much old material has to come out and access to the work. You’ll have a clear quote before any work starts, so you know where you stand.
Why choose Mr Mastic in Horn Park
- We leave the area clean and tidy
- We’re fully insured
- One-year guarantee on every job
- Anti-fungal silicone where joints get wet
Read what affects the cost and customer reviews.