Greater London · England
Fire-rated sealant in Southgate, Greater London
Fire-stopping gaps in Southgate need attention? We remove the old material, prepare the joints and seal them properly.
- Open gaps behind door architraves
- Gaps flagged on a fire risk assessment
- Holes left by a change of layout
DIY versus a professional finish
Sealing over old silicone is the commonest DIY error. New silicone will not bond to old, so it peels away and traps moisture behind it. Everything old must be removed first.
If you are set on DIY, put the effort into preparation: remove every trace of old sealant, clean and dry the joint, and follow the product’s cure time. If it fails, we can still redo it.
How we handle fire rated sealant in Southgate
A fire seal relies on being installed the way it was tested: correct depth, correct backing and a product suited to the surfaces. That detail is what we take care over, one gap at a time. If you are dealing with fire stopping disturbed by later work and gaps around pipes and cables through fire-resisting walls, 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 Southgate, that can mean fire-rated sealant around service openings as well as resealing in shared washrooms and kitchens.
All of our work is guaranteed for twelve months.
- Where
- Southgate (N14, N11, N21, N13)
- Wider area
- Greater London
- Cover
- 12 months on all our work
- Quotes
- A clear quote up front
- Telephone
- 0345 464 0079
- Page updated
- 26 October 2026
The process
When we arrive, we start by going over the job with you, so you know exactly what we’re doing. We protect the surfaces around the joints before work begins. The work usually takes a few hours for a handful of gaps, and longer for a whole building. 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.
- Before starting, we go through the specification or action list with you.
- We measure every gap and note what it’s in and what passes through.
- Any non-fire-rated filler is removed and the faces cleaned.
- We fit backing where needed and apply the fire-rated sealant to depth.
- Every location is recorded with the product used.
Before we arrive
- Where the joints are inside, avoid wetting them before we arrive
- On commercial sites, let us know about site rules
- Mention if the joints have been sealed before
Ask for a quote
We quote each job on its own, so start by telling us what you need. Simply ring 0345 464 0079 or send us an email and describe the job and send pictures if you have them.
Read more
Why it’s worth doing now in Southgate
Waiting for the next refit can leave a gap open for years. On its own, sealing it now is a small job that doesn’t depend on other work. 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 Southgate.
Commercial jobs are quoted on the same basis as homes: the amount of work, the access and the products needed. Call for a quick quote and we’ll explain what it covers.
What you get with us
- A 12-month guarantee on all work
- We’re fully insured
- Domestic, commercial and hotel work
- Arbo and Everbuild products
Take a look at our cost guide and our reviews.
Fire rated sealant around Southgate
Many London buildings have tight access and loading restrictions, so out-of-hours working can be arranged where needed. There are hotels and other places to stay in and around Southgate. Hotel work can be planned room by room, with out-of-hours working where needed.
As a London address, Southgate can be tricky for parking: tell us about permits, visitor bays or off-street space when you book. Managing a site like Ashmole Primary School? Then fire-stopping around service openings should be restored whenever new services go in.
Southgate is about 3 miles south-east of Barnet, in Greater London. For fire rated sealant in and around Southgate, it’s easy to get a quote: please call 0345 464 0079 or send us an email. We cover Greater London from our Crawley base. We cover 764 towns and villages across Greater London. You can also see our page for London, about 9 miles away.
All of N14, N11, N21 and N13 is covered for fire rated sealant. That includes homes and businesses on High Street, Station Road and Blagden's Close and the roads around them. Southgate sits on or near the A111 and A1004. Nearby, we also carry out fire rated sealant in Osidge (1 mile north-west), Brunswick Park (1 mile west), Arnos Grove (1 mile south), New Southgate (1 mile south) and Oakwood (1 mile north). Within a short drive, we also cover London (9 miles south), City of Westminster (8 miles south), Marylebone (8 miles south), Kensington (9 miles south), St Pancras (7 miles south) and Shoreditch (7 miles south).
Near you in Southgate
Around Southgate, our work takes us to homes and buildings near The New Crown pub, Grovelands Park and Ashmole Academy, among other places. The nearest railway station is New Southgate station, about 1 mile south-west. Well-known places in the area include Grand Arcade (2.1 miles south-west) and Greentrees Hospital (1.9 miles south-east). Green spaces nearby include Highgate Hill and Barfield Allotments Nature Park.
What sealant work can’t fix
New sealant can’t fix everything, and we’ll tell you before any work starts. It won’t solve:
- Walls or floors that weren’t built to resist fire
- Issuing a fire rating or certificate for a building
- Doors that aren’t fire doors in the first place
Not sure which it is? You can ring 0345 464 0079 or drop us an email and we’ll tell you honestly before booking.
Surfaces we seal
- Plasterboard & masonry
- Pipe & cable gaps
- Flats & HMOs
- Service penetrations
- Linear gaps
- Door frames
Nearby places to Southgate
What else we do in Southgate
FAQs for Southgate
Do you take on hotel work around Southgate?
Yes, hotels and guest houses are among the places we work. A room-by-room programme keeps most rooms in use while the work goes on.
I let a flat near New Southgate station. Can you help?
Yes, we work for letting agents and landlords. You can ring 0345 464 0079 or send us an email with the address and a few details, and we’ll give you a fixed price before we start.
Do you seal gaps around fire door frames?
Yes, if the gap is within the product’s tested range. Our work is the gap around the frame.
Are you fully insured?
Yes, we are fully insured for domestic and commercial work.
Can you quote for more than one area?
Yes. More than one area can go on one quote.
What does intumescent mean?
Intumescent means it swells when heated to help seal the gap. It’s one type of fire-rated sealant; which product suits depends on the gap, the substrate and the service.
Do the sealants smell?
There can be a smell while the sealant cures, which fades as it sets. Ventilation helps.
Can I choose the sealant colour?
In most cases you can choose. We will explain which colours are available and agree one before work begins.
Looking after it afterwards
No joint lasts for ever, but care makes a real difference. Our tips:
- Check risers, ceiling voids and cupboards during building checks
- Ask every contractor to reseal any fire stopping they disturb
- Never patch a fire seal with standard sealant
- Store the list of sealed gaps with your building paperwork
Let contractors know where fire stopping has been done, and make sure anything they disturb is resealed with a suitable product. Later work is a common cause of damaged fire stopping.
When you plan work that goes through walls or ceilings, plan the fire stopping too. Doing it at the time avoids leaving gaps behind.
What we are called out for in Southgate
A lot of fire stopping is out of sight: in ceiling voids, service risers and behind boxing. Because nobody sees it, gaps go unnoticed until an assessor or surveyor looks.
Common reasons people contact us are:
- Standard silicone or caulk in a fire-stopping gap
- Sealant items on a fire risk assessment action list
- Unsealed gaps where pipes and cables go through a wall
- Open gaps behind door architraves
Rented homes near New Southgate station change hands often, and any gap left by new services in shared walls should be closed with a fire-rated product.
Comparing quotes
- Is VAT in the price?
- What happens if they find a problem under the old sealant
- What preparation is included
- Which colour the sealant will be
Quotes for fire rated sealant in Southgate
Jobs vary more than people expect. The main factors:
- Mould in or behind the old joints
- Which sealant suits the joint
- Working hours on commercial sites
- The number of rooms or windows
Combining jobs into one visit is normally more efficient than separate visits, so it’s worth mentioning everything you’d like done. We will send you a clear quote for the lot.
Helping us quote
There’s no need for technical detail. Just tell us:
- Where the property is
- If it’s domestic, commercial or a hotel
- Roughly how big the job is
- Any access issues, like height or stairs
Quotes start with a quick conversation. Describe the problem, the location and the size of the job, and we’ll explain how we’d tackle it. When it suits you, ring 0345 464 0079 or drop us an email.