Greater London · England
Fire Rated Sealant in New Eltham
Intumescent and fire-rated sealant around gaps, frames and service penetrations for New Eltham, backed by a 12-month guarantee. Ask us for a quote.
- Open holes round services passing through fire walls
- Gaps where walls meet ceilings or slabs
- Seals cut through by electricians, plumbers or data installers
Fire rated sealant in New Eltham, done properly
Intumescent sealant looks much like any other sealant until it gets hot; then it swells to help close the gap. Which product suits a gap depends on its width, the materials either side and what runs through it. We’re often asked to deal with damaged fire sealant left by other trades and gaps filled with a product that isn’t fire-rated, across plasterboard & masonry, door frames and linear gaps.
Across London, offices, shops, hotels, student halls and blocks of flats all need sealant work from time to time, from washroom silicone to fire-rated sealant around pipes and cables passing through walls. Out-of-hours working can be arranged where a building in New Eltham can’t close.
We stand behind the work with a one-year guarantee, so you’re not left on your own once the job is done.
- Location
- New Eltham (SE9, DA15, BR7)
- Region
- Greater London
- Guarantee
- A year, on every job
- Price
- Quoted before any work starts
- Phone
- 0345 464 0079
- Page updated
- 26 October 2026
DIY versus a professional finish
If you’re 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.
Overfilling a joint is a classic DIY mistake. A heavy bead looks messy and copes badly with movement, and getting the depth right matters as much as the look.
The process
Most of a good job is in the preparation, so that is where we spend the time. Joints are cleaned back and dried before anything new goes in. All told, the work takes anything from a few hours to several days, depending on how many gaps there are. Parking in much of London is by permit or pay-and-display, so it helps to know what’s near you in New Eltham. It helps if you can point us to a visitor permit or a bay close to the door.
- We go through the gaps on your list or survey and check each one’s size and substrate.
- Old or unsuitable sealant is cut out and the gap cleaned.
- Backing or fill is fitted where the product’s tested detail calls for it.
- We apply the fire-rated or intumescent sealant to the specified depth and tool it.
- Locations and products are noted so you have them on file.
Preparing for the visit
- Mention any parking rules near the property
- Move anything stored near the joints
- Keep pets and children clear of the area while we work
Get a quote
We do not publish a price list, as no two jobs are quite the same. Instead, your job gets its own clear quote. To get started, ring 0345 464 0079 or email us.
Related advice
Fire rated sealant around New Eltham
Commercial buildings in London often have strict access rules and limited loading, and out-of-hours working is possible to arrange. In England, the Regulatory Reform (Fire Safety) Order 2005 requires a fire risk assessment for workplaces and for the common parts of blocks of flats, 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.
If you look after a building such as Wyborne Primary School, fire-stopping around service openings should be restored whenever new services go in. Letting a property close to New Eltham station? Then fire-rated sealant around pipes and cables through walls and floors needs making good whenever new services go through.
New Eltham is about 1 mile south-east of Eltham, in Greater London. If you need fire rated sealant in New Eltham, it’s easy to get a quote: please ring 0345 464 0079 or email us. We cover Greater London from our Crawley base. We cover 764 towns and villages across Greater London, from the larger towns to small villages. London is on our list too, around 8 miles away.
Postcode districts we cover here for fire rated sealant: SE9, DA15 and BR7. Local streets include Green Lane, Gerda Road and Novar Road. We also cover the places around New Eltham: Eltham (1 mile north-west), Longlands (1 mile south-east), Coldharbour (1 mile south-west), Avery Hill (1 mile north) and Blackfen (1 mile north-east). Further out, we also cover London (8 miles north-west), City of Westminster (11 miles north-west), Marylebone (11 miles north-west), Kensington (13 miles west), St Pancras (10 miles north-west) and Shoreditch (9 miles north-west).
Around New Eltham
Around New Eltham, our work takes us to homes and buildings near Elmstead Wood and St Thomas More Catholic Comprehensive School, among other places. New Eltham has its own railway station: New Eltham station. Well-known places in the area include Metropolitan Police Museum (1.4 miles east) and Eltham Community Hospital (1.1 miles north-west). Green spaces nearby include Summer Hill and The Tarn.
Nearby places to New Eltham
More services for New Eltham
Questions from New Eltham
Can you do fire rated sealant in New Eltham?
Yes. We work across London and the South East, and New Eltham is part of that. Just call 0345 464 0079 or drop us an email with a few details of the job.
Do you work for landlords with property near New Eltham station?
Yes, landlords and agents are among the people we work for. Just ring 0345 464 0079 or send us an email with the address and what needs doing, and we will give you a clear quote.
Are you ARBOMaster approved?
Yes. Mr Mastic is an ARBOMaster approved applicator, and we’re fully insured.
Will there be a smell?
Possibly a little. Any smell clears as the sealant cures, and ventilation helps.
Are you insured?
Yes. We’re fully insured, and we can confirm the details when we quote.
Can I add another job to the visit?
Yes, and it often makes sense. Doing several areas at once is normally more efficient, so mention them when you ask for a quote.
Do you offer different sealant colours?
Normally, yes. Sealants come in white, clear, grey and other colours, and we will agree it with you first.
What information do you need?
The location, the problem and the rough size of the job. Photos by email help too.
Quotes for fire rated sealant in New Eltham
Call for a quick quote. The main things that affect it are:
- The old material and how stubborn it is
- How much there is to do
- Access and height
- The product the joint needs
Doing several joints on one visit normally makes better use of the time than several visits, so it’s worth mentioning everything you’d like done. We will give you a clear quote for the lot.
What to tell us for a quote
You don’t need to know the technical terms. Just tell us:
- If it’s domestic, commercial or a hotel
- Photos by email, if that is easy
- If someone has resealed it before
- Access, such as stairs, a lift or height
Asking for a quote is easy: tell us what needs doing and where and its rough size. A few pictures by email make the job easier to understand.
What sealant work can’t fix
Sealant is not the answer to every problem, and we’ll tell you before work begins. It will not solve:
- Construction that doesn’t provide fire resistance on its own
- Fire doors that need new seals, closers or hardware
- Openings too large for sealant, which need batts, boards or another system
Not sure which it is? You can phone 0345 464 0079 or email us and we’ll tell you honestly before booking.
Surfaces we seal
- Flats & HMOs
- Plasterboard & masonry
- Door frames
- Service penetrations
- Linear gaps
- Pipe & cable gaps
Landlords, agents and businesses in New Eltham
Housing providers, facilities teams and property managers book us too. We can quote a run of properties together.
For anyone letting property in or around New Eltham, several properties can be quoted together. Send us the addresses and the work at each, and photos by email help.
Surface 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 will tell you.
Masonry and concrete
Preparation counts on brick, block and concrete. We brush and vacuum the gap and use backing where the detail needs it before applying the sealant.
What we are called out for in New Eltham
Sometimes the wrong product was used from the start: general-purpose foam, everyday silicone or caulk where a fire-rated seal was needed. It may look fine, but it isn’t a fire-rated seal.
Common reasons people contact us include:
- Gaps filled with a product that is not fire-rated
- New service routes left unsealed after building work
- Door frames with gaps between frame and wall
- Open holes round services passing through fire walls
As a London address, New Eltham can be tricky for parking: let us know about parking bays, permits or a driveway.
What your quote should include
- Whether they’re fully insured
- What happens if the job turns out different
- Whether VAT is included
- Who turns up on the day