Kent · England
External Mastic in Barming Heath
Sealing brickwork movement joints, render, cladding and façade joints for Barming Heath, backed by a 12-month guarantee. Call for a quick quote.
- Joints with sealant missing in places
- Water getting into walls through failed joints
- Movement joints filled with mortar instead of sealant
Aftercare tips
Simple care keeps the joints in good condition. Our advice:
- Keep high-pressure jets off the joints
- Act on the first splits you see
- Walk round the building once a year and look at the joints
- Never let anyone fill a movement joint with mortar
Give the sealant the cure time we tell you before anything rubs against it. The surface skins over quickly, but full cure takes longer.
Leave a failed movement joint and water keeps getting into the wall. That can lead to damp patches, staining and frost damage, all bigger jobs than a reseal.
External mastic in Barming Heath, done properly
For buildings in Barming Heath, we reseal external joints of all kinds, from brick movement joints to cladding panels. The preparation is the same whatever the wall: clean joint faces and the right depth. If you have joints with sealant missing in places and leaking joints around cladding and façade panels, we can put it right, whatever the surface.
In a village or hamlet like Barming Heath, older cottages and farm buildings often stand in the open, 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.
Whatever the size of the job, you get the same one-year guarantee.
- Location
- Barming Heath (ME16, ME15)
- Wider area
- Kent
- Cover
- A year, on every job
- Quote
- Quoted before any work starts
- Telephone
- 0345 464 0079
- Last updated
- 26 October 2026
When to call us in Barming Heath
Sunlight, wet weather and frost wear exterior sealant down. Over the years it hardens, cracks on the surface and loses its give, so the next time the wall moves, it splits or pulls away.
Signs it’s time to call us include:
- Leaking joints around cladding and façade panels
- Gaps where render, brick and frames meet
- Sealant pulling away from one side of the joint
- Water getting into walls through failed joints
If you live in an older home near Church of St Margaret, old and new materials meet at the roofline and walls, which is where sealant earns its keep.
Comparing quotes
- What happens if they find a problem under the old sealant
- What preparation is included
- What product goes in the joint
- What the quote includes, VAT included or not
How the job changes by surface
Joints between dissimilar materials
Each side of the joint may need its own preparation. We prepare both faces so the sealant bonds properly.
Brickwork movement joints
Clay brickwork grows slightly over its life and moves with the weather. That movement goes into the joint, so the sealant in it must stay soft and stretchy.
Should I try it myself first?
A careful DIYer can reseal a simple joint, like a short, easy-to-reach joint indoors. The common mistakes are sealing over old sealant, sealing a damp joint and using far too much.
The biggest DIY mistake is sealing over old sealant. New silicone will not bond to old, so it peels away and traps moisture behind it. All the old material has to come out first.
For landlords and businesses
Businesses can book us for washrooms, kitchens, offices and more. For commercial premises, we can talk through working times when we quote.
Failed sealant is one of the commonest items on a check-out report, and it’s easy to sort out between tenants. We can quote for more than one property at once.
Nearby places to Barming Heath
Other services in Barming Heath
External mastic in Barming Heath: local notes
Compared with the north and west, the South East gets less rain, though outdoor sealant still has to go onto a dry joint, so the forecast decides the day.
Letting a property close to East Farleigh station? Then failed wall and movement joints let damp in, so they’re worth checking between tenancies. Managing a site like Barming Primary School? Then movement joints, cladding joints and gutters on larger buildings need the same care as a house’s.
Barming Heath is about 3 miles east of Kings Hill, in Kent. Barming Heath gets the same service as everywhere we cover: the old material taken out, joints prepared properly and a 12-month guarantee. Across Kent, we cover 922 places, Barming Heath among them. You can also see our page for London, about 29 miles away.
All of ME16 and ME15 is within our area for external mastic. Local streets include Lower Road, Church Lane and Tonbridge Road, all of which we cover. Neighbouring places we cover for external mastic include Hoppers Corner (1 mile south), Kettle Corner (1 mile south-east), Farleigh Green (1 mile south), West Farleigh (1 mile south) and Teston (1 mile west). We also work in nearby towns such as Maidstone (3 miles east), Sittingbourne (13 miles north-east), Sevenoaks (12 miles west), Royal Tunbridge Wells (12 miles south-west), Gravesend (12 miles north) and Tonbridge (9 miles south-west).
Near you in Barming Heath
We work in homes and buildings around Quarry Wood, St Simon Stock Catholic School and The Bull Inn and the streets around them. The nearest railway station is East Farleigh station, about 1.1 miles east of the centre. Other landmarks nearby include Oakwood Hospital (1.3 miles north-east) and Fremlin Walk (2.8 miles east). Green spaces nearby include Boxley Hills.
Barming Heath questions
Can you do external mastic in Barming Heath?
Yes. We work across London and the South East, and Barming Heath is part of that. You can call 0345 464 0079 or drop us an email and let us know what needs doing, and we will give you a clear quote.
Do you work for landlords with property near East Farleigh station?
Yes. We work for landlords and agents as well as homeowners. You can phone 0345 464 0079 or drop us an email with the details for a clear quote.
Will the old sealant be removed?
Yes. Sealing over the old bead is the commonest cause of early failure, so we never do it.
Can you seal over the old sealant?
No. Fresh sealant does not stick to old sealant, and it traps any mould or water underneath. We remove it all first.
Can a movement joint be filled with mortar?
No, not if it’s a movement joint. Pointing it stops it working, and the wall may crack nearby. We’ll reseal it with a flexible sealant.
Will the new joint stand out?
The sealant colour is picked to suit the wall so the joint blends in. Exterior sealants come in a good range of colours.
Can you work on commercial sites?
Yes, regularly. We can plan bigger jobs in stages to suit the site.
Can you seal joints between two different materials?
Yes. Where different materials meet is one of the most common joints we seal. The sealant is chosen to bond to both sides, primed where needed.
How the visit works
The work is kept neat and contained to the area we are working on. The job generally takes a few hours for a handful of joints, longer for a whole elevation. Somewhere like Barming Heath needs a little journey planning: tell us about narrow lanes, gates, long drives and where we can park. We bring what the job needs, so it can be finished in one trip where possible.
- We inspect the joints and agree which need resealing and how they’ll be reached.
- The old mastic and anything lodged in the joint is removed.
- The joint faces are cleaned and primed where the sealant needs it.
- Backing rod goes in next, setting the depth and keeping the sealant off the back of the joint.
- We gun in a flexible exterior sealant in a colour that suits the wall and tool it neatly.
How to prepare
- Plan for the work area to be out of bounds to pets and children
- Let us know about parking restrictions
- Tell us about any water getting in
How to get a quote
Want a quote for external mastic? Please phone 0345 464 0079 or send us an email and tell us about the job. You will know what we plan to do, and what it will cost, before any work begins.
Related advice
Honest limits
We’ll always be straight with you, so here’s what sealant can’t fix:
- Walls that need new movement joints cut into them
- Failed render or damaged cladding panels
- Rising or penetrating damp from elsewhere in the wall
If you are not sure, just ring 0345 464 0079 or drop us an email and we’ll give you a straight answer.
Where we work in Barming Heath
- Render & cladding joints
- Brickwork movement joints
- Copings & trims
- Façade panels
- Concrete & block
- Joints between brick and frames