Kent · England
West Stourmouth External Mastic
Specialist external mastic for West Stourmouth: careful preparation, the right product and tidy work. Ask us for a quick quote.
- Gaps where render, brick and frames meet
- Movement joints with cracked, split or missing sealant
- Weeds or debris growing in open joints
External mastic in West Stourmouth, done properly
Joints in render and cladding are easy to overlook until a damp patch appears. We look over the joints, agree the ones to renew and reseal with a flexible, weatherproof product in a matching colour. Common call-outs are for moss and dirt in joints with no sealant left and joints pointed up with cement by mistake, on joints between brick and frames, brickwork movement joints and façade panels.
In a village or hamlet like West Stourmouth, older cottages and farm buildings often stand in the open, so walls and rooflines take the full force of wind and rain. Gutter joints and wall joints there need a sealant that can flex and stay put.
There’s a 12-month guarantee on every job, whatever its size.
- Where
- West Stourmouth (CT3)
- Region
- Kent
- Cover
- A year, on every job
- Quotes
- A clear price before we start
- Phone
- 0345 464 0079
- Page updated
- 26 October 2026
Different surfaces, different methods
Brickwork movement joints
People sometimes point up a brick movement joint by mistake. Where one has been mortared, we cut it out and reseal it with sealant.
Joints between dissimilar materials
Brick against render, concrete against metal, stone against timber: every change of material is a joint. A flexible sealant bridges the two.
DIY sealant or a professional job?
Too much sealant is as bad as too little. A thick, smeared bead looks untidy and doesn’t move well, and getting the depth right matters as much as the look.
If you’ve already had a go yourself, that is fine. We cut it out and start again.
Common problems we fix in West Stourmouth
The wrong product in a moving joint is a classic cause. A stiff, general-purpose sealant cannot cope with a joint that moves a lot, and it tears off the sides.
These are the problems we’re asked about most:
- Rigid filler in a joint that should flex
- Brick movement joints where the sealant has split
- Leaking joints around cladding and façade panels
- Moss and dirt in joints with no sealant left
Letting a property close to Minster station? Then split movement joints are easy to miss on a rental until damp shows inside.
Comparing quotes
- What happens if they find a problem under the old sealant
- Which sealant they’ll use, and why
- How much experience the applicator has
- What preparation is included
West Stourmouth buildings and the weather
London and the South East are among the drier parts of the UK, but outside sealant still needs a dry, clean surface, so outdoor work is planned around the forecast.
Homes close to All Saints Church include some older properties, and the joints between older walls, newer extensions and the roofline need a sealant that can move. For site and facilities teams at buildings such as Preston Primary School, larger buildings have long runs of movement joint that eventually need resealing.
West Stourmouth is about 6 miles south-east of Herne Bay, in Kent. We carry out external mastic for homeowners, landlords and businesses in West Stourmouth, as part of our work across Kent. We cover 922 towns and villages across Kent, from the larger towns to small villages. There’s also a page for Chelmsford, roughly 43 miles from West Stourmouth.
Every address in CT3 is within our area for external mastic. Neighbouring places we cover for external mastic include East Stourmouth (1 mile east), Grove (1 mile south-west), Preston (1 mile south), Sarre (1 mile north) and Upstreet (2 miles west). Within a short drive, we also cover Canterbury (7 miles west), Margate (8 miles north-east), Dover (13 miles south), Ramsgate (8 miles east), Broadstairs (9 miles east) and Whitstable (9 miles west).
Near you in West Stourmouth
Around West Stourmouth, our work takes us to homes and buildings near Grove Ferry Picnic Area and the streets around them. The nearest railway station is Minster station, roughly 3.7 miles east. For a walk, there’s Monk's Wall nature reserve.
How it works
When we get to you, we compare the joints with what we discussed. If anything is different, we explain it before carrying on. After that, the work takes a few hours to a few days, depending on the length of joint and the access. For a village or hamlet like West Stourmouth, the journey is planned in advance: let us know about lanes, gates and parking. Everything for the job comes with us, so a second trip is avoided where possible.
- We look at every joint and agree a colour to suit the wall.
- We take out the old sealant until the faces are sound.
- Closed-cell backing rod is pushed in so the sealant bonds to two sides only.
- We prime the faces where required.
- A low-modulus exterior sealant is gunned in and tooled to a neat finish.
Getting ready for the visit
- Let us know about stairs, lifts or work at height
- Tell us about any previous sealing or DIY attempts
- Plan for the work area to be out of bounds to pets and children
Ask for a quote
For a quote, call 0345 464 0079 or drop us an email and tell us where the job is and what the problem looks like. You will have a clear quote before we start.
Advice
Other services in West Stourmouth
Aftercare tips
How long the joints last depends on use and care. Here’s what we suggest:
- Have failed joints looked at early
- Wash walls gently around the sealant
- Make sure movement joints are not pointed over
- Leave the joints unpainted unless we have said otherwise
Only paint over the joint if we’ve confirmed the sealant can take paint. Paint can crack on a flexible joint, and paint can crack as the joint moves.
A joint that has stopped moving pushes the movement elsewhere, often as cracks near the joint. Resealing it early helps prevent that.
Leave it or put it right?
A failed movement joint lets water into the wall, behind render and cladding. Dealing with it early keeps the repair to the joint, rather than the wall around it. Older cottages and farmhouses around West Stourmouth can have timber floors and frames, where water from a failed joint can cause rot if it’s left.
A few things move the cost up or down: how much old sealant there is and how stubborn it is, any mould to treat, and whether the work is at height. Your quote takes all of that into account.
Why West Stourmouth customers choose us
- Rated 4.9 stars on Google
- We’re fully insured
- Anti-fungal silicone where joints get wet
- One-year guarantee on every job
Take a look at what affects the cost or what customers say.
For landlords and businesses
From a single let to a portfolio, you get the same standard of work: old sealant fully removed, joints prepared properly and a one-year guarantee.
A neglected joint can let water reach the structure, which is a bigger problem in a rented property. Keeping joints in good order is simple maintenance that we can handle for you.
Your questions about external mastic in West Stourmouth
I let a flat near Minster station. Can you help?
Yes, we work for landlords and letting agents. Just call 0345 464 0079 or drop us an email and tell us about the property, and we will give you a clear quote.
Do you cover smaller places like West Stourmouth?
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.
Are you ARBOMaster approved?
Yes. We’re approved under the ARBOMaster scheme, which is run for the Arbo sealant brand.
Can I do it myself?
It depends on the job. High-level, external movement and fire-rated joints are professional jobs.
Can you seal joints between render and window frames?
Yes. We cut out the old sealant, prepare both faces and reseal with a flexible exterior product. The colour is chosen to suit.
What colours does the sealant come in?
We aim for a joint that suits the wall rather than one that jumps out. Colour is agreed with you before we begin.
Is it messy?
No. We work neatly, protect the area around the joints and tidy up afterwards.
When will the joints need doing again?
It depends on the exposure, the movement and the product. Treat it as a maintenance item and look at it yearly and renew it when it starts to fail.