Kent · England
External & façade joints in Bishopstone, Kent
External mastic for Bishopstone, by sealant specialists with 20+ years’ experience. Rated 4.9 on Google from 180+ five-star reviews.
- Leaking joints around cladding and façade panels
- Movement joints with cracked, split or missing sealant
- Hard, crazed mastic that has stopped moving
Landlords, agents and businesses in Bishopstone
We also work for property managers and facilities teams. Several sites can go on one quote, and we’re fully insured.
Whether it’s one flat or a portfolio, the work is the same standard: the old material taken out, careful preparation and a 12-month guarantee.
About our external mastic in Bishopstone
As ARBOMaster approved applicators, we choose exterior sealants to suit the joint and the surfaces. Some surfaces need a primer before sealing. We work on concrete & block, render & cladding joints and joints between brick and frames, and people most often call us about rain getting behind render or cladding at a joint and weathered mastic that no longer stretches.
In and around Bishopstone, older properties sit alongside newer ones, each with its own outside joints. Older homes need their gutter and trim joints kept tight, newer ones their movement joints.
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.
- Place
- Bishopstone (CT6)
- Region
- Kent
- Cover
- One year on every job
- Quotes
- Quoted before any work starts
- Phone
- 0345 464 0079
- Updated
- 26 October 2026

Why deal with it now?
Low-modulus sealants stretch easily, so they put less strain on the joint edges. That protects surfaces like brick, render and concrete. Too stiff a sealant can pull at the edges and break them. In a smaller place like Bishopstone, wherever a wall is exposed, a failed outside joint is a real source of damp. Indoors, a failed seal lets water into floors and panels as it would anywhere.
A failed joint rarely gets cheaper to fix by waiting, as water and mould keep getting in. If you are unsure, ring 0345 464 0079 or drop us an email for an honest opinion and a quote.
Why book with us
- Any old sealant cut out fully, not covered over
- We leave the area clean and tidy
- Quality sealants from Arbo and Everbuild
- We agree the colour with you first
See what affects the cost and our reviews.
Quotes for external mastic in Bishopstone
Call for a quick quote. What matters most is:
- Access and height
- The type of sealant required
- How many rooms, windows or areas are involved
- Whether old sealant or filler has to be cut out
What it costs depends on how much there is to do, how much old material has to come out and access to the work. We give a clear quote before work begins, so you know where you stand.
What to tell us for a quote
Photos help, but a description is a good start. Please mention:
- Whether it’s a home or a business
- Access, such as stairs, a lift or height
- What the problem is, such as mould, gaps, leaks or cracking
- Whether it has been sealed before
For a quote, phone 0345 464 0079 or email us with the location and a short description of the problem. You will have a clear quote before any work starts.
How the visit works
Every visit runs the same way: we look at the joints together, protect the area around them, do the work and clear up. Most jobs take a few hours to a few days, depending on the length of joint and the access. In a smaller place like Bishopstone, parking is seldom the issue; lanes, gates and long drives are worth mentioning. If the job is outside, tell us about side access and how high the joints are.
- Each joint is checked and the colour of the new sealant agreed.
- 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.
- We gun in low-modulus sealant and tool it neatly.
Getting ready for the visit
- Tell us if parking is tricky
- Tell us about any previous sealing or DIY attempts
- Mention any sign-in or site rules at work premises
Get a quote
The more we know about the job, the more useful the quote. Let us know the location, the problem and roughly how many joints.
Advice
Can I do it myself?
The biggest DIY mistake is sealing over old sealant. New silicone won’t bond to old, so it peels away and traps moisture behind it. Everything old must be removed first.
If you do try it yourself, take your time over the preparation: take out all the old sealant, make sure the joint is clean and dry, and give it the full cure time. If it does not work out, we can still put it right.
What sealant work cannot fix
We’d rather tell you now than do work that won’t last, so here’s what sealant cannot put right:
- Cutting new joints into brickwork, which is building work rather than sealant work
- Rising or penetrating damp from elsewhere in the wall
- Failed render or damaged cladding panels
If you’re not sure, just phone 0345 464 0079 or email us and we will give you a straight answer before booking.
Where we work in Bishopstone
- Render & cladding joints
- Copings & trims
- Façade panels
- Joints between brick and frames
- Brickwork movement joints
- Concrete & block
Looking after it afterwards
Simple care keeps the joints in good condition. We recommend:
- Do not let climbing plants root in the sealant
- Tell anyone working on the walls about the movement joints
- Leave the joints unpainted unless we have said otherwise
- Never let anyone fill a movement joint with mortar
If you have more work done on the wall, such as new render, cladding or an opening, show the contractor the movement joints. They must stay as flexible joints, never rendered or pointed over.
Gaps, plants or missing sealant in a joint are worth getting looked at. Early work is quicker and leaves a better finish.
Common questions in Bishopstone
Does the coastal weather in Bishopstone affect outside sealant?
Near the coast, wind-driven rain and, nearer the shore, salt air make outside sealant work harder. The right product, a clean joint and the right depth all help it cope.
Is Bishopstone within the area you cover?
Yes, Bishopstone is covered. We work across London and the South East, and smaller places are part of that. Longer journeys are simply planned in advance.
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 will explain our choice.
How long before the joint can be used?
Many sealants skin over quickly but take longer to cure fully. We’ll give you the cure time for the product we used.
What colours does the sealant come in?
The aim is a neat, even joint in a colour that suits the wall. Colour is agreed with you before we begin.
Do you work for letting agents?
Yes, regularly. We can quote for several properties at once.
Do you work for hotels and businesses?
Yes. Hotels, offices and other businesses use us and we are fully insured.
Is there any odour?
Possibly a little. It fades as the sealant cures.
Also near Bishopstone
Other services in Bishopstone
What external mastic looks like in Bishopstone
Bishopstone is close to 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. 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.
If you look after a building such as Reculver Church of England Primary School, larger buildings have long runs of movement joint that eventually need resealing. Homes close to Church of St Mary the Virgin include some older properties, and the joints between older walls, newer extensions and the roofline need a sealant that can move. For landlords with property near Herne Bay station, outside joints that have cracked can let damp into a rental, so check them between lets.
Bishopstone is about 2 miles east of Herne Bay, in Kent. Our applicators cover external mastic for homeowners, landlords and businesses in Bishopstone and the surrounding area. 922 places in Kent are on our list, from the larger towns to small villages. We also work in Chelmsford, about 39 miles from Bishopstone.
All of CT6 is within our area for external mastic. That includes homes and businesses on Manor Road, Puffin Road and Neville Road. Neighbouring places we cover for external mastic include Hillborough (1 mile south), Beltinge (1 mile west), Hawthorn (1 mile south), Reculver (1 mile east) and Broomfield (1 mile south-west). Further out, we also cover Canterbury (8 miles south-west), Margate (9 miles east), Ramsgate (11 miles east), Broadstairs (11 miles east), Whitstable (6 miles west) and Deal (14 miles south-east).
Local landmarks in Bishopstone
In Bishopstone, that means homes and buildings near Bishopstone Cliffs. The nearest railway station is Herne Bay station, about 2.4 miles west. Other landmarks nearby include Whitstable and Tankerton Hospital (5.3 miles west). Green spaces nearby include West Blean and Thornden Woods.
