Kent · England
External & façade joints in Highstead, Kent
External mastic for Highstead and the surrounding area: careful preparation, the right product and tidy work. Call for a quick quote.
- Failed sealant between panels on a façade
- Failed seals between different materials
- Joints with sealant missing in places
External mastic for homes and businesses in Highstead
Movement joints let brickwork, render and cladding expand and shrink without cracking. The sealant in it has to stretch and squeeze for years, and when it fails, the wall takes the strain and water finds a way in. If you are dealing with moss and dirt in joints with no sealant left and water getting into walls through failed joints, we can put it right.
In a village or hamlet like Highstead, 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.
A 12-month guarantee comes as standard.
- Location
- Highstead (CT3, CT6)
- Region
- Kent
- Cover
- A year, on every job
- Quotes
- A clear price before work begins
- Call
- 0345 464 0079
- Updated
- 26 October 2026
What we can’t put right
We’d rather tell you now than do work that won’t last, so here’s what sealant can’t put right:
- Adding movement joints to masonry that has none
- Loose or hollow render, which needs re-rendering
- Subsidence or other structural problems
If in doubt, phone 0345 464 0079 or drop us an email and we will say what we think.
Surfaces we seal
- Copings & trims
- Brickwork movement joints
- Joints between brick and frames
- Render & cladding joints
- Façade panels
- Concrete & block
Highstead: your questions answered
I let a flat near Herne Bay station. Can you help?
Yes, rental work is part of what we do. You can phone 0345 464 0079 or drop us an email with the address and a few details, and we will give you a fixed price before we start.
Will you come out to Highstead?
Yes, we do. We work across London and the South East, from towns to the smallest places. The journey is planned ahead, so it helps to know about access.
How long does external mastic take?
Typically it takes a few hours for a handful of joints, longer for a whole elevation. Bigger jobs take longer, and we will tell you how long to expect.
Will the old sealant be removed?
Yes. All of the old material is cut out and the joint cleaned before applying anything new.
Which products do you use?
Each joint gets the product that suits it. Where it moves, gets wet or faces the weather makes a difference, and we’ll explain our choice.
Will there be a smell?
Some sealants have a smell while they cure, which fades as it sets. Opening a window helps.
Do I need to be at home?
For indoor joints, yes, someone needs to let us in. Once we have agreed the job, you don’t need to watch us work.
How much does external mastic cost in Highstead?
We do not publish prices, because the cost depends on the job: how much there is, what’s there now, how we reach it and what it needs. You’ll get a clear quote before work begins.
What we’re called out for in Highstead
Every building moves. Clay bricks expand slightly over their life, concrete and block shrink, and everything moves with temperature and wet. The sealant in the movement joints takes that strain.
Common reasons people contact us are:
- Damp patches traced to an open external joint
- Hard, crazed mastic that has stopped moving
- Brick movement joints where the sealant has split
- Leaking joints around cladding and façade panels
If you live in an older home near Church of St Mary the Virgin, older walls, gutters and the joints where extensions meet them need a flexible sealant.
Comparing quotes
- What the quote includes, VAT included or not
- What preparation is included
- Whether all the old sealant comes out first
- Which sealant they’ll use, and why
Should I try it myself first?
The difference is mostly in the preparation and the product. We take joints back to clean, dry surfaces, and the sealant is chosen for how the joint moves and where it is, then guaranteed for a year.
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.
What the job involves on each surface
Render joints
Rendered walls have joints at beads, openings and changes of material. We reseal them with a flexible exterior sealant that suits the render colour.
Brickwork movement joints
Brick moves with heat and moisture, and grows a little over time. The movement joint takes that up, so its sealant has to stay flexible.
Highstead buildings and the weather
Highstead is within about 2 miles of the coast, and homes near the sea take more wind-driven rain, with salt in the air closer to the shore. Both are hard on movement joints and outside wall joints, which can dry out and crack sooner where a building faces the weather. 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.
For landlords with property near Herne Bay station, outside joints that have cracked can let damp into a rental, so check them between lets. Schools such as Reculver Church of England Primary School are buildings too, and its movement joints, gutters and trims need looking after like any other building’s.
Highstead is about 2 miles south-east of Herne Bay, in Kent. Jobs in Highstead get the same care as everywhere else we work: the old material taken out, joints prepared properly and a 12-month guarantee. Highstead is one of 922 places in Kent we cover for external mastic. Our Chelmsford page covers work nearby.
Here we cover the CT3 and CT6 postcode area for external mastic. We also cover the places around Highstead: Hawthorn (1 mile north), Boyden Gate (1 mile south-east), Millbank (1 mile south-west), Old Tree (1 mile south) and Hillborough (1 mile north). Larger places within reach include Canterbury (7 miles south-west), Margate (9 miles east), Ramsgate (10 miles east), Broadstairs (11 miles east), Whitstable (6 miles west) and Deal (13 miles south-east).
Around Highstead
Around Highstead, our work takes us to homes and buildings near Bishopstone Cliffs and Hog & Donkey pub, among other places. The closest station to Highstead is Herne Bay station, about 2.7 miles west of the centre. Other landmarks nearby include Whitstable and Tankerton Hospital (5.6 miles west). Green spaces nearby include West Blean and Thornden Woods.
Landlords, agents and businesses in Highstead
In hotels, rooms out of use cost money, so the work can be planned room by room around your bookings where we can. We’ve worked in hotels as well as homes and businesses.
Water getting past a failed joint can damage the building, which is a bigger problem in a rented property. Keeping joints in good order is simple maintenance that we can handle for you.
How it works
On the day, we start by going over the job with you, so you know exactly what we are doing. Surfaces next to the work are protected before any work begins. The work normally takes anything from a few hours to several days, depending on the building. In a small place like Highstead, access is normally the main thing to plan. 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.
- Every bit of old sealant and any mortar or debris is cut out.
- The faces are brushed clean and primed where the product requires it.
- We fit closed-cell backing rod to control the depth.
- We apply the sealant, tool it and check the whole run.
How to prepare
- Mention any leaks or damp you’ve noticed
- Mention any tricky access
- Mention if the joints have been sealed before
Getting a quote
Call for a quick quote, or send an email if you’d rather. Describe what needs sealing and we will talk you through the work and send you a clear quote.
Read more
Leave it or put it right?
A low-modulus sealant is chosen because it moves without pulling hard at the edges. That matters on brick, render and concrete, which can be weaker at the face. Too stiff a sealant can pull at the edges and break them. Around Highstead, older homes often have timber in their floors and frames, where water from a failed joint can cause rot if it’s left.
Leaving a failed joint usually makes the job bigger, not smaller, as water and mould keep getting in. If you are not sure whether it needs doing, phone 0345 464 0079 or email us and we will give you an honest view and a quote.
Why Highstead customers choose us
- Quality sealants from Arbo and Everbuild
- Tidy, careful work
- A 12-month guarantee on all work
- We agree the colour with you first
Read how sealant jobs are priced and customer reviews.