Kent · England
External Mastic in Brabourne
External mastic across Brabourne and nearby, with old sealant always removed completely and a 12-month guarantee.
- Rigid filler in a joint that should flex
- Joints where the bead has come unstuck
- Joints with sealant missing in places
DIY sealant or a professional job?
Some sealant jobs are within reach of a careful DIYer, such as a straightforward joint indoors. Where it goes wrong is sealing over the old bead, working on a wet joint or overloading the gap.
What a professional job adds is preparation and the right product. We take joints back to clean, dry surfaces, and the sealant is matched to the joint and its conditions, and the work is guaranteed for a year.
About our external mastic in Brabourne
Low-level joints can usually be done from the ground. Where joints are higher up, tell us about the building when you get in touch and we will confirm what access is needed. If you are dealing with damp patches traced to an open external joint and sealant pulling away from one side of the joint, we can help.
Somewhere as small as Brabourne, homes and farm buildings often face open ground, so walls and rooflines take the full force of wind and rain. Joints on those walls need a sealant that moves with the building and stays in place.
We guarantee the work for a year. If there’s a problem with our work within the year, let us know and we’ll sort it.
- Where
- Brabourne (TN25)
- Wider area
- Kent
- Cover
- A year, on every job
- Quote
- Quoted before any work starts
- Call
- 0345 464 0079
- Page updated
- 26 October 2026
For landlords and businesses
Mouldy or split sealant often shows up at the end of a tenancy. Several properties can go on one quote.
We work for landlords and letting agents as well as householders. Resealing between tenancies is a simple way to keep a property in good order.
How the job changes by surface
Joints between dissimilar materials
Different materials may need different primers. We prepare both faces so the sealant bonds properly.
Concrete and blockwork
Wide joints in concrete need the depth controlling carefully. Backing rod sized to the joint sets it.
How we quote for external mastic
We quote each job individually. These are the things that affect it:
- How many areas need sealing
- The type of sealant required
- How much there is to do
- How much old sealant there is and how hard it is to remove
The cost depends on the size of the job, how much old material has to come out and how easy the joints are to reach. You will have a clear quote before any work starts, so you know where you stand.
What to tell us for a quote
To help us quote quickly, let us know:
- Photos by email, if that is easy
- What the problem is, such as mould, gaps, leaks or cracking
- How many joints, rooms or windows are involved
- Access, such as stairs, a lift or height
Call for a quick quote, or send an email if you’d rather. Tell us about the joints that need doing and we will talk you through the work before giving you a price.
When it isn’t the sealant
It helps to know what we can’t do:
- Cracks in the bricks or render themselves, away from the joints
- Failed render or damaged cladding panels
- Walls that need new movement joints cut into them
Not sure which it is? You can ring 0345 464 0079 or send us an email and we’ll tell you honestly.
Joints and surfaces we work on
- Brickwork movement joints
- Copings & trims
- Render & cladding joints
- Concrete & block
- Joints between brick and frames
- Façade panels
Why it’s worth doing now in Brabourne
The longer a joint stays open, the more water the wall takes in. Wet masonry is more easily damaged by frost, so the damage spreads beyond the joint. Older cottages and farmhouses around Brabourne can have timber floors and frames, where water from a failed joint can cause rot if it’s left.
A failed joint rarely gets cheaper to fix by waiting, because water and mould keep working on it. If you’re not sure whether it needs doing, phone 0345 464 0079 or drop us an email for an honest opinion and a quote.
What you get with us
- We leave the area clean and tidy
- Sealant colour chosen to suit
- White, clear, grey or another colour, product permitting
- We never seal over old sealant
Take a look at how sealant jobs are priced or our reviews.
Walls and rooflines in Brabourne
The South East is one of the drier parts of the UK, but outside sealant still needs a dry, clean surface, so outdoor work is planned around the forecast. Historic houses like Westenhanger Castle (about 3.3 miles south-east) are a reminder that the area around Brabourne has older buildings as well as new. In older buildings, older brick and stone need a sealant that suits them, at the right joint depth.
Rented homes near Westenhanger station change hands often, and split movement joints are easy to miss on a rental until damp shows inside. If you live in an older home near Church of St Mary, old and new materials meet at the roofline and walls, which is where sealant earns its keep. Schools such as Brabourne Church of England Primary School are buildings too, and its movement joints, gutters and trims need looking after like any other building’s.
Brabourne is about 6 miles east of Ashford, in Kent. Whether you are in the middle of Brabourne or further out, external mastic is available for homes and businesses alike. Across Kent, we cover 922 places, Brabourne among them. Our Chelmsford page covers work nearby (47 miles or so).
All of TN25 is covered for external mastic. External mastic is available to properties on The Street and Canterbury Road and the roads around them. We also cover Bircholt Forstal (1 mile west), Brabourne Lees (1 mile south-west), Lilyvale (1 mile south-west), Smeeth (2 miles south-west) and Ridgeway (2 miles south-west). Further out, we also cover Ashford (6 miles west), Canterbury (11 miles north), Dover (13 miles east), Folkestone (8 miles south-east), Whitstable (15 miles north) and Faversham (13 miles north).
Landmarks near Brabourne
In Brabourne, that means homes and buildings near The Five Bells pub, among other places. The nearest railway station is Westenhanger station, about 3.4 miles south-east of the centre. Well-known places in the area include William Harvey Hospital (3.6 miles west) and Lympne Castle (4.6 miles south). Not far away are Tolsford Hill and Hatch Park.
The process
Before we leave, we go over the finished joints with you and explain the cure time. The work normally takes a few hours for a handful of joints, longer for a whole elevation, depending on the size of the job. Somewhere as small as Brabourne, access is often the only tricky part. For outside work, also let us know about exposed walls and any outbuildings involved.
- We start by walking round the building and agreeing the joints and the access.
- We cut out the old mastic and rake out anything in the joint.
- Joint faces are cleaned back and primed if the sealant needs it.
- Backing rod sized to the joint goes in to set the depth.
- We apply the sealant, tool it and check the whole run.
How to prepare
- Clear items away from the joints we’re working on
- Tell us about access, such as stairs, a lift or high-level joints
- Try not to wet indoor joints just before the visit
Ask for a quote
Every job is quoted individually, so the first step is telling us about yours. Simply phone 0345 464 0079 or send us an email and describe the job and send photos if you have them.
Read more
Places near Brabourne
Also in Brabourne
Brabourne questions
Will you come out to Brabourne?
Yes, we do. We work across London and the South East, and smaller places are part of that. Longer journeys are simply planned in advance.
Can you do external mastic in Brabourne?
Yes, Brabourne is within the area we cover. We work across London and the South East. You can phone 0345 464 0079 or send us an email and let us know what needs doing.
Are you fully insured?
Yes. We’re fully insured, and we’ve been doing sealant work for more than 20 years.
Should I try DIY first?
For a simple, easy-to-reach joint, a careful DIYer can do a reasonable job. Most DIY failures come from sealing over old material, wet joints or too much sealant.
Can you seal joints between render and window frames?
Yes. Different materials move at different rates, so the joint between them must be flexible. We choose one that suits both surfaces.
Do the sealants smell?
Some sealants have a smell while they cure, but it fades. Ventilation helps.
How long should I leave it?
Many sealants skin over quickly but take longer to cure fully. We will tell you how long to leave the joint before we leave.
Why do you put foam in the joint first?
Closed-cell backing rod sets the depth of the sealant and stops it sticking to the back of the joint. That way it bonds to the two sides only and can stretch.