Greater London · England
Fire-rated sealant in South Hampstead, Greater London
Specialist fire rated sealant for South Hampstead: careful preparation, the right product and tidy work. Ask us for a quick quote.
- Gaps flagged on a fire risk assessment
- Holes left by a change of layout
- Linear gaps at the head of walls
About our fire rated sealant in South Hampstead
Later work by other trades often breaks through fire stopping, especially in flats, HMOs, offices and schools. 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. We are often asked to deal with open holes round services passing through fire walls and sealant items on a fire risk assessment action list, on service penetrations, linear gaps and door frames.
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 South Hampstead, and room-by-room programmes can be planned where needed.
The work is covered for a year after we finish. If there’s a problem with it, please phone 0345 464 0079 or send us an email.
- Where
- South Hampstead (NW3, NW8, NW6)
- Region
- Greater London
- Guarantee
- 12 months on all our work
- Quote
- A clear quote up front
- Telephone
- 0345 464 0079
- Updated
- 26 October 2026
Signs you need fire rated sealant in South Hampstead
Many open fire-stopping gaps are made after the building is finished. Electricians, plumbers and data installers drill through walls and ceilings and the hole round the new service is not always sealed again.
People generally contact us after spotting something like this:
- Door frames with gaps between frame and wall
- New service routes left unsealed after building work
- Joints picked up in a fire-stopping survey
- Gaps where walls meet ceilings or slabs
If you look after a building such as The UCL Academy, service openings in fire-resisting walls need checking after any refurbishment.
What to look for in a quote
- Are they insured?
- When the joint can take water or movement
- How the colour is chosen
- Whether they seal over old material or remove it
South Hampstead: your questions answered
Do you take on hotel work around South Hampstead?
Yes, we work for hotels as well as homes and businesses. Rooms can be done a few at a time, so the building stays open.
Do you work for landlords with property near South Hampstead station?
Yes, rental work is part of what we do. You can ring 0345 464 0079 or email us with the address and a few details, and we’ll give you a fixed price before we start.
Do you take out the old sealant first?
Yes, always, and completely. New silicone doesn’t stick to old silicone, so any old material comes out before anything new goes in.
Is standard sealant good enough for a fire gap?
No. It looks sealed but won’t perform as fire stopping. Use a product tested for that gap and service, or ask us to do it.
Do you seal gaps around fire door frames?
Yes. The joint between frame and wall is sealed with a fire-rated sealant, to the product’s details. The door leaf and its hardware need a door specialist.
Can you tell me how many minutes the seal will last?
We do not certify fire stopping or quote ratings. Our part is installing the specified product to its tested details and list the locations and products for you.
Can you tell me which gaps need fire stopping?
No. That’s for a fire risk assessor, designer or building control. Our job is applying the sealant to their specification.
Can you give us a record of the work?
Yes. We record the locations we have sealed and the products used for your files.
What happens on the day
We work through the job in order: protect, prepare, seal, tidy. Typically it takes from a few hours to a few days, depending on the number of gaps and the access. In a London area like South Hampstead, the main things to plan are parking and access: tell us about permits, visitor bays or off-street space, which floor we are working on and whether there’s a lift.
- Before starting, we go through the specification or action list with you.
- Each gap is measured and its substrate and service noted.
- Any non-fire-rated filler is removed and the gap cleaned.
- The specified fire-rated sealant goes in over any backing its detail requires.
- Every location is recorded with the product used for your files.
Getting ready for the visit
- Mention any parking rules near the property
- Clear items away from the joints we’re working on
- On commercial sites, let us know about site rules
Ask for a quote
It all starts with a short chat. Describe the problem, the location and the size of the job, and we’ll explain how we’d tackle it. Whenever you are ready, call 0345 464 0079 or send us an email.
Advice
Fire rated sealant around South Hampstead
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. South Hampstead has hotels and guest accommodation in and around it. Hotel work can be planned room by room, with out-of-hours working where needed.
Letting a property close to South Hampstead station? Then fire-rated sealant around pipes and cables through walls and floors needs making good whenever new services go through. Community buildings like Church of All Souls are part of the picture too: older buildings that have had new heating or wiring often have service gaps worth checking.
South Hampstead is about 1 mile south of Hampstead, in Greater London. From the centre of South Hampstead to the outskirts, fire rated sealant is available for homes and businesses alike. 764 places in Greater London are on our list, from the larger towns to small villages.
Postcode districts we cover here for fire rated sealant: NW3, NW8 and NW6. Streets in the area include Avenue Road, Acacia Road and Harben Road. Other places close to South Hampstead include Swiss Cottage (1 mile north), St John's Wood (1 mile south), Haverstock (1 mile east), Belsize Park (1 mile east) and Primrose Hill (1 mile east). Within a short drive, we also cover London (4 miles south-east), Kensington (3 miles south-west), St Pancras (3 miles south-east), Shoreditch (4 miles east), Walthamstow (7 miles north-east) and Hoxton (4 miles east).
Around South Hampstead
We work in homes and buildings around Cafe Med pub, St. Mary's Town and Country School and Holy Trinity CofE Primary School. You’ll also find Cecil Sharp House (1.1 miles east) and Primrose Hill (0.6 miles east). South Hampstead has its own railway station: South Hampstead station. Other landmarks nearby include Isokon Gallery (0.8 miles north-east) and O2 Centre (0.5 miles north-west). Not far away are Adelaide Nature Reserve and The Long Water.
Also near South Hampstead
What else we do in South Hampstead
Keeping the joints in good condition
A little care helps the new joints last. We recommend:
- Include hidden areas like risers in routine checks
- Tell trades working in the building that fire seals must be put back
- Keep pictures of seals that will be hidden
- Report cracked or damaged seals as soon as you notice them
Don’t add foam, filler or ordinary sealant over a fire seal. If it needs repair, use the same type of product. Ask us if you’re not sure which product was used.
Any job that breaks through a wall or ceiling should include resealing. Catching it then saves a separate visit later.
Should I try it myself first?
Not every job suits DIY: work at height, external movement joints, fire-rated sealant and large areas call for the right materials, safe access and experience.
What a professional job adds is preparation and the right product. Joints are cleaned back to sound surfaces and dried, and the sealant is matched to the joint and its conditions, then guaranteed for a year.
Different surfaces, different methods
Service penetrations
A copper pipe, a cable and a plastic pipe can all need different fire-stopping details. We follow the manufacturer’s tested detail for each and we flag any that need another system.
Linear gaps
Linear gaps run along the head of walls, at floor edges and between panels. We seal them to the tested detail, with backing where it’s needed.
What we cannot put right
Honest advice matters more to us than a booking, so here’s what sealant can’t fix:
- Big openings where sealant alone isn’t the tested solution
- Assessing a building’s fire safety
- Problems with the door itself rather than the gap around the frame
If in doubt, ring 0345 464 0079 or email us and we’ll say what we think before you book.
Where we work in South Hampstead
- Pipe & cable gaps
- Door frames
- Plasterboard & masonry
- Flats & HMOs
- Linear gaps
- Service penetrations
How we quote for fire rated sealant
We don’t publish a price list. What we look at:
- How many areas need sealing
- Any working-time requirements on site
- Whether the work is at height
- The size of the job
Homes and businesses are quoted the same way: how much there is to do, how we reach it and what it needs. Ask us for a quote and we’ll explain what it covers.
What to tell us for a quote
Photos by email are helpful but not essential. Please mention:
- What the problem is, such as mould, gaps, leaks or cracking
- Where the property is
- Roughly how big the job is
- Photos by email, if that’s easy
A good description makes for an accurate quote. Let us know the location, the problem and roughly how many joints, and add pictures by email if you can.