Greater London · England
Fire-rated sealant in Brasted, Greater London
Fire rated sealant for Brasted and the surrounding area: the right sealant, proper preparation and a neat finish. Ask us for a quick quote.
- Unsealed gaps where pipes and cables go through a wall
- Cracked or shrunken fire-rated sealant
- Unsealed gaps around fire door frames
What sealant work can’t fix
We will not take on work that will not last, so these are the limits:
- Issuing a fire rating or certificate for a building
- Walls or floors that weren’t built to resist fire
- Big openings where sealant alone is not the tested solution
If you are not sure, just call 0345 464 0079 or email us and we’ll give you a straight answer before you book.
Joints and surfaces we work on
- Door frames
- Plasterboard & masonry
- Flats & HMOs
- Service penetrations
- Linear gaps
- Pipe & cable gaps
Fire rated sealant in Brasted
Later work by other trades often breaks through fire stopping, especially in flats, HMOs, offices and schools. A new cable run or a replaced pipe can leave an open hole behind. Those are the gaps we close, using a tested fire-rated product. If you are dealing with holes left by a change of layout and unsealed gaps where pipes and cables go through a wall, we can help, on linear gaps, service penetrations and plasterboard & masonry alike.
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 Brasted, that can mean fire-rated sealant around service openings as well as resealing in shared washrooms and kitchens.
Big or small, you get the same 12-month guarantee in Brasted and across Greater London.
- Location
- Brasted (TN16)
- Region
- Greater London
- Guarantee
- 12 months on all our work
- Price
- A clear price before we start
- Phone
- 0345 464 0079
- Last updated
- 26 October 2026
Should I try it myself first?
A DIY attempt does not rule out a professional job. We cut it out and start again.
Some jobs are best left to a professional: work at height, external movement joints, fire-rated sealant and large areas need the right product, the right access and the right method.
What we do, step by step
Once we are on site, we compare the joints with what we discussed. If anything is different, we explain it before carrying on. Most jobs then take from a few hours to a few days, depending on the number of gaps and the access. In Brasted, as in most of London, parking needs a little planning. A visitor permit or a nearby bay makes the visit run more smoothly.
- First we work through your list or survey, measuring each gap and checking what it’s formed in.
- 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.
- The sealant goes in to the depth its detail sets, then it’s tooled off.
- We record the locations and products used for your records.
How to prepare
- Let us know about parking restrictions
- Plan for the work area to be out of bounds to pets and children
- Clear the area around the work
Ask for a quote
Getting a quote is simple: let us know the job and the location. Photos by email help us understand the job, and we will come back to you with a quote.
Read more
Surface by surface
Plasterboard walls
Service holes in plasterboard are often rough and oversized. Where a hole is bigger than the sealant’s tested range, it needs another approach and we will flag it.
Door frames
Frame gaps are normally hidden behind the architrave. Where it’s open, we seal it to the product’s details for that gap size.
Common problems we fix in Brasted
Lots of unsealed gaps appear long after the building was completed. New cables, pipes and data runs go through walls and ceilings and the hole they leave does not always get resealed.
Keep an eye out for these signs:
- Gaps flagged on a fire risk assessment
- Damaged fire sealant left by other trades
- Open joints along the top of partitions
- Open holes round services passing through fire walls
Brasted is in London, so parking needs planning: tell us about permits, visitor bays or off-street space when you book.
Before booking anyone
- What guarantee comes with the work
- What preparation is included
- What product goes in the joint
- Is the old sealant removed completely?
Why act early in Brasted
Waiting for the next refit can leave a gap open for years. On its own, sealing it now is a small job that does not depend on other work. Converted houses in London often have a bathroom above someone else’s living room, so a small leak from tired sealant can mean a neighbour’s ceiling and a lot of disruption. Dealing with it early is far simpler.
Homes and businesses are quoted the same way: how much there is to do, how we reach it and what it needs. Call for a quick quote and we will go through it with you.
Why choose Mr Mastic in Brasted
- Quality sealants from Arbo and Everbuild
- We never seal over old sealant
- ARBOMaster approved applicator
- Rated 4.9 stars on Google
See what affects the cost and customer reviews.
Aftercare tips
Simple care keeps the joints in good condition. We recommend:
- Plan fire stopping into any work that goes through walls or floors
- Don’t paint over fire sealant until it has cured
- Make resealing part of every contractor’s brief
- Store the list of sealed gaps with your building paperwork
Look at the sealed gaps as part of your routine walk-rounds. Look for cracks, gaps or sealant that has been cut or pulled out and have them put right.
Open gaps don’t only matter in a fire: noise, draughts and even pests can come through too. Sealing them early helps on every front.
Nearby places to Brasted
Other services in Brasted
FAQs for Brasted
Do you work for landlords with property near Dunton Green station?
Yes, we work for landlords and agents. Just call 0345 464 0079 or drop us an email and tell us about the property, and we’ll give you a clear quote.
Do you cover Brasted for fire rated sealant?
Yes. Our work covers London and the South East, and Brasted is part of that. Just call 0345 464 0079 or drop us an email with a few details of the job, and we’ll give you a clear price.
Do I have to be there?
If the work is inside, we need someone to let us in. Once we’ve agreed the job, you do not need to watch us work.
Can I add another job to the visit?
Of course. Combining jobs makes good use of the visit, so mention them when you ask for a quote.
Is intumescent sealant the same as fire-rated sealant?
Fire-rated is the broad term for sealants tested for fire stopping. Intumescent ones swell in heat, and they’re one of the options. We use whichever the specification and tested details call for.
What information do you need?
Just the basics: where it is, what you’ve noticed and how we reach it. After that, simply ring 0345 464 0079 or drop us an email.
Can you tell me how many minutes the seal will last?
We do not certify fire stopping or quote ratings. We apply the specified product to the manufacturer’s details and giving you a record of where it went.
Where are you based?
We are based in Crawley, West Sussex, and we cover South East England, London and all of Scotland.
What fire rated sealant looks like in Brasted
Many London buildings have tight access and loading restrictions, 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, which is often where open fire-stopping gaps are first noticed. We apply fire-rated sealant to the assessor’s or designer’s specification and the product’s tested details.
For landlords with property near Dunton Green station, new cables or pipes through a fire-resisting wall leave a gap that needs the right sealant. Managing a site like Combe Bank School? Then fire-stopping around service openings should be restored whenever new services go in.
Brasted is about 3 miles west of Sevenoaks, in Greater London. From the centre of Brasted to the outskirts, we cover fire rated sealant for every kind of property. Our Greater London coverage runs to 764 places, and Brasted is one of them. There’s also a page for Crawley, roughly 17 miles from Brasted.
Work in TN16 works the same way as everywhere else we cover. That includes homes and businesses on High Street, Station Road and Watermill Close and the roads around them. Neighbouring places we cover for fire rated sealant include Sundridge (1 mile east), Brasted Chart (1 mile south), Chipstead (2 miles east), Chevening (2 miles north-east) and Bessels Green (2 miles east). We also work in nearby towns such as Orpington (7 miles north), New Cross (15 miles north-west), Thornton Heath (13 miles north-west), Croydon (11 miles north-west), East Dulwich (15 miles north-west) and Plumstead (15 miles north).
Local landmarks in Brasted
In Brasted, that means homes and buildings near The White Hart pub and the streets around them. The nearest railway station is Dunton Green station, about 3.1 miles north-east of the centre. Well-known places in the area include Sevenoaks Museum (3.8 miles east) and Tandridge Priory (3.8 miles south-west). Green spaces nearby include Betsom's Hill and Dryhill Nature Reserve.