Greater London · England
Dulwich Fire Rated Sealant
Intumescent and fire-rated sealant around gaps, frames and service penetrations in Dulwich, with a 12-month guarantee on every job. Ask us for a quote.
- Gaps flagged on a fire risk assessment
- Seals cut through by electricians, plumbers or data installers
- Gaps where walls meet ceilings or slabs
Fire rated sealant for homes and businesses in Dulwich
Fire stopping only performs as intended if it’s done to the detail: the right depth, the right backing and the right product for the substrate. That detail is what we take care over, gap by gap. We are often asked to deal with linear gaps at the head of walls and unsealed gaps where pipes and cables go through a wall, across pipe & cable gaps, flats & HMOs and linear gaps.
In London, a commercial job often starts with access: loading bays, building rules and lifts. For a building in Dulwich, we agree timings and access before anything starts, and room-by-room programmes can be planned where needed.
Your job is guaranteed for a year, as with all our work.
- Where
- Dulwich (SE22, SE21, SE23)
- Wider area
- Greater London
- Guarantee
- A year, on every job
- Quotes
- Quoted before any work starts
- Call
- 0345 464 0079
- Last updated
- 26 October 2026
When to call us in Dulwich
Movement in the structure can open gaps too: cracked or debonded sealant leaves an open route through the wall. Knocks, maintenance and building work damage it further.
Signs it’s time to call us include:
- Fire seals that have cracked with movement
- Standard silicone or caulk in a fire-stopping gap
- Joints picked up in a fire-stopping survey
- Open gaps behind door architraves
Letting a property close to West Dulwich station? Then new cables or pipes through a fire-resisting wall leave a gap that needs the right sealant.
What your quote should include
- Whether VAT is included
- Whether you can choose the colour
- What preparation is included
- What the cure time is
When it isn’t the sealant
In fairness, some problems need a different trade:
- Issuing a fire rating or certificate for a building
- Construction that does not provide fire resistance on its own
- Problems with the door itself rather than the gap around the frame
Not sure which it is? You can phone 0345 464 0079 or send us an email and we’ll tell you honestly.
Joints and surfaces we work on
- Service penetrations
- Pipe & cable gaps
- Door frames
- Plasterboard & masonry
- Flats & HMOs
- Linear gaps
DIY versus a professional finish
If you do try it yourself, take your time over the preparation: take out all the old sealant, make sure the joint is clean and dry, and give it the full cure time. If it fails, we can still redo it.
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.
Why act early in Dulwich
A quick fill with any sealant to hand is not fire stopping. Fire-rated products are tested in set gap sizes, depths and substrates, which is why we match the product and the method to each gap. 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 Dulwich.
Instead of a standard rate, we look at what your job involves: how many joints, what’s in them now and how we reach them. You will know the price before we begin.
What you get with us
- Neat joints and a tidy finish
- Sanitary silicone with an anti-fungal additive in wet areas
- Fully insured
- Quality sealants from Arbo and Everbuild
What we do, step by step
A visit follows a simple pattern: we check the joints, protect the area around them, do the work and tidy away. Most jobs take from a few hours to a few days, depending on the number of gaps and the access. 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 plan the order of work and access, floor by floor or flat by flat.
- We take out any damaged or unsuitable sealant.
- Gaps are cleaned of dust and loose material.
- We apply and tool the sealant to the product’s tested detail.
- We record what was done and flag anything that needs a different system.
Preparing for the visit
- Clear items away from the joints we are working on
- Mention any sign-in or site rules at work premises
- Keep children and pets away from the work area
Getting a quote
If you’re in Dulwich and need fire rated sealant, phone 0345 464 0079 or drop us an email. Tell us what the problem is and where, and you’ll get a clear quote before any work starts.
Related advice
Nearby places to Dulwich
Other services in Dulwich
Landlords, agents and businesses in Dulwich
We also work for property managers and facilities teams in Dulwich and across Greater London. Several sites can go on one quote, and we are fully insured for the work.
If you manage several properties in or around Dulwich, jobs at different addresses can go on one quote. Just tell us the addresses and what each one needs.
Dulwich questions
Do you take on hotel work around Dulwich?
Yes, hospitality work, including hotels, is part of what we do. Jobs can be programmed room by room, with out-of-hours working possible to arrange.
Can parking be tricky for a visit in Dulwich?
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.
Can you tell me how many minutes the seal will last?
Ratings and certification sit with the product’s test evidence and whoever specified the work. We apply the specified product to the manufacturer’s details and list the locations and products for you.
Can you do several jobs on one visit?
Yes, and it often makes sense. Combining jobs makes good use of the visit.
What should I tell you?
Only a few details: where it is, what you’ve noticed and how we reach it. Then call 0345 464 0079 or send us an email.
How long does the job take?
It depends on the size of the job, but as a guide it takes a few hours for a handful of gaps, and longer for a whole building. We’ll tell you when we quote.
Are you ARBOMaster approved?
Yes. We hold ARBOMaster approved applicator status.
Can new sealant go over the old?
No. The old sealant always comes out first, so the new sealant bonds properly.
Workplaces and buildings in Dulwich
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 apply fire-rated sealant to the assessor’s or designer’s specification and the product’s tested details. Commercial buildings in London often have strict access rules and limited loading, and out-of-hours working is possible to arrange.
If you look after a church, hall or community building such as Christ's Chapel of God's Gift, gaps around pipes and cables are worth checking after any building work there. For site and facilities teams at buildings such as St Anthony's Catholic Primary School, gaps opened by contractors for new cabling are a common finding in schools and offices.
Dulwich is about 1 mile south-east of Herne Hill, in Greater London. Jobs in Dulwich get the same care as everywhere else we work: the old material taken out, joints prepared properly and a 12-month guarantee. Our Greater London coverage runs to 764 places, and Dulwich is one of them.
Work in SE22, SE21 and SE23 is quoted and booked the same way as anywhere else. Whether your property is on Court Lane, Druce Road and Boxall Road or anywhere close by, our applicators can take on the job. Dulwich sits on or near the A2216. We also cover the places around Dulwich: Dulwich Village (1 mile north-west), West Dulwich (1 mile south), Herne Hill (1 mile north-west), Sydenham Hill (1 mile south-east) and Forest Hill (1 mile east). Within a short drive, we also cover London (4 miles north), City of Westminster (6 miles north-west), Marylebone (6 miles north-west), Kensington (7 miles north-west), St Pancras (6 miles north) and Shoreditch (6 miles north).
What’s near Dulwich
Locally, jobs take us to homes and businesses close to The Crown and Greyhound pub, Dulwich Park and Alleyn's School. Dulwich’s nearest station is West Dulwich station, roughly 0.7 miles south-west. A little further out are Dulwich Community Hospital (0.9 miles north) and Greenwich Castle (4 miles north-east). Green spaces nearby include Knight's Hill and Centre for Wildlife Gardening.
Surface by surface
Masonry and concrete
Masonry is dusty and porous, so preparation matters. The gap is cleaned and backed where required before the sealant goes in.
Service penetrations
Different services need different details: metal pipes, cables and plastic pipes are not treated the same. We follow the manufacturer’s tested detail for each.