Greater London · England
Fire-rated sealant in Blackheath, Greater London
Intumescent and fire-rated sealant around gaps, frames and service penetrations for Blackheath, backed by a 12-month guarantee. Call for a quick quote.
- Open holes round services passing through fire walls
- Gaps filled with a product that is not fire-rated
- New service routes left unsealed after building work
Should I try it myself first?
A careful DIYer can reseal a simple joint, such as a straightforward 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.
Fire rated sealant for homes and businesses in Blackheath
In flats, HMOs, offices and schools, fire stopping is often disturbed by later work. One new cable or pipe can leave a gap that nobody goes back to seal. We seal them with a product tested for that kind of gap. If you’re dealing with gaps left after a refit or conversion and seals cut through by electricians, plumbers or data installers, we can put it right, on service penetrations, door frames and flats & HMOs alike.
Across London, offices, shops, hotels, student halls and blocks of flats all need sealant work from time to time, whether that is washroom resealing or fire-rated sealant around service openings. Out-of-hours working can be arranged where a building in Blackheath can’t close.
Our work is backed for twelve months.
- Where
- Blackheath (SE3, SE13, SE10)
- Region
- Greater London
- Cover
- 12 months on all our work
- Quotes
- A clear price before work begins
- Telephone
- 0345 464 0079
- Updated
- 26 October 2026
Also near Blackheath
Also in Blackheath
Quotes for fire rated sealant in Blackheath
Your quote is based on your job. We take into account:
- How many areas need sealing
- Whether old sealant or filler has to be cut out
- Working hours on commercial sites
- Any mould that needs treating
The cost depends on the size of the job, 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.
Helping us quote
When you call or email, these details help:
- Whether it’s a home or a business
- Roughly how big the job is
- Access, such as stairs, a lift or height
- Where the property is
We quote each job on its own. Just ring 0345 464 0079 or email us with the details, and photos are welcome.
Fire rated sealant in Blackheath: local notes
There are hotels and other places to stay in and around Blackheath. Hotel work can be planned room by room, with out-of-hours working where needed. Many London buildings have tight access and loading restrictions, so out-of-hours working can be arranged where needed.
Blackheath is in London, so parking needs planning: let us know about parking bays, permits or a driveway. Rented homes near Blackheath station change hands often, and any gap left by new services in shared walls should be closed with a fire-rated product.
Blackheath is about 1 mile south-east of Greenwich, in Greater London. Blackheath gets the same service as everywhere we cover: old sealant removed completely, careful preparation and a 12-month guarantee. We cover 764 towns and villages across Greater London, from the larger towns to small villages.
Our applicators cover all of SE3, SE13 and SE10 for fire rated sealant. You will find streets such as Pond Road, Heath Lane and Wemyss Road, all of which we cover. Neighbouring places we cover for fire rated sealant include Vanbrugh Park Estate (1 mile north), Greenwich (1 mile north-west), Maze Hill (1 mile north), Lewisham (1 mile south-west) and Westcombe Park (1 mile north-east). Further out, we also cover London (5 miles north-west), City of Westminster (8 miles north-west), Marylebone (7 miles north-west), Kensington (9 miles west), St Pancras (7 miles north-west) and Shoreditch (5 miles north-west).
Local landmarks in Blackheath
In Blackheath, that means homes and buildings near The Princess Of Wales Pub, Blackheath Proprietary School and Manor House Gardens, among other places. There’s a railway station in Blackheath itself: Blackheath station. Other landmarks nearby include Lewisham Shopping Centre (1.1 miles south-west) and Royal Observatory (0.7 miles north-west). For a walk, there’s Tower Hill and Birdbrook Road Nature Reserve.
How the job changes by surface
Plasterboard walls
Service holes in plasterboard are often rough and oversized. Gaps that are too big for sealant alone need a different detail, and we’ll tell you.
Flats and HMOs
In occupied buildings, we plan the order of work with you. Access to flats and common areas is agreed in advance to keep disruption down.
When something else is needed
We’d rather tell you now than do work that won’t last, so these are the limits:
- Assessing a building’s fire safety
- Issuing a fire rating or certificate for a building
- Large holes that need a different fire-stopping system
If in doubt, ring 0345 464 0079 or send us an email and we’ll say what we think before booking.
Joints and surfaces we work on
- Flats & HMOs
- Service penetrations
- Pipe & cable gaps
- Linear gaps
- Door frames
- Plasterboard & masonry
Why act early in Blackheath
Doing it once, properly, beats doing it twice. If the details weren’t followed, the seal may need redoing once someone inspects it. In a flat in Blackheath, failed sealant seldom stays inside your own four walls: water from a shower or window joint can reach the flat below, and gaps in fire-stopping matter to everyone in the building.
Doing several joints on one visit is normally more efficient than separate visits. We’ll give you a clear quote for the lot.
Why book with us
- Quality sealants from Arbo and Everbuild
- Neat joints and a tidy finish
- Anti-fungal silicone where joints get wet
- We are fully insured
Blackheath questions
Is parking an issue for fire rated sealant in Blackheath?
It can be, so it helps to tell us about permits, visitor bays or off-street space when you book. The visit is then planned around what’s available.
I let a flat near Blackheath station. Can you help?
Yes, landlords and agents are among the people we work for. Just call 0345 464 0079 or send us an email with the address and what needs doing, and we’ll send you a clear quote.
Will there be a smell?
Possibly a little. Any smell clears as the sealant cures, and ventilation helps.
Can I use normal mastic around a pipe through a fire wall?
No. Where a fire-rated seal is needed, it has to be a product tested for that use.
Do you work in flats, HMOs and commercial buildings?
Yes. Flats, HMOs, offices, schools and other occupied buildings are all part of our work. We agree access and the order of work with you first.
How long does the job take?
As a guide, most jobs take from a few hours to a few days, depending on the number of gaps and the access. Bigger jobs take longer.
Can new sealant go over the old?
No. New silicone will not bond to old silicone, and anything trapped underneath, including mould and water, stays there. It all has to come out first.
Can you do several jobs on one visit?
Yes. Just list everything you need and you’ll get one quote.
What happens on the day
Every visit runs the same way: we check the joints, protect the area around them, do the work and tidy away. It generally takes 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 Blackheath. 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.
- Old, damaged or unsuitable sealant is removed.
- Dust and loose debris are cleaned from each gap.
- We apply and tool the sealant to the product’s tested detail.
- Locations and products are written up and any gaps unsuitable for sealant are flagged.
How to prepare
- For business premises, tell us about site rules or sign-in
- Clear items away from the joints we are working on
- Mention any leaks or damp you’ve noticed
Get a quote
Need a quote? Please call 0345 464 0079 or drop us an email with a few details. We will explain what we’d do and give you a clear price before any work starts.
Related advice
Do you need fire rated sealant in Blackheath?
Gaps also open up as buildings move: cracked or debonded sealant leaves an open route through the wall. Damage from cleaning, knocks and maintenance adds to it.
Common reasons people contact us include:
- Fire stopping disturbed by later work
- Standard silicone or caulk in a fire-stopping gap
- Open holes round services passing through fire walls
- Sealant items on a fire risk assessment action list
If you look after a building such as All Saints' Church of England Primary School Blackheath, gaps opened by contractors for new cabling are a common finding in schools and offices.
Comparing quotes
- Whether they’re fully insured
- Which sealant they’ll use, and why
- How long to leave it before use
- What happens if the job turns out different