Medway · England
External Mastic in Cuxton
Sealing brickwork movement joints, render, cladding and façade joints in Cuxton, with a 12-month guarantee on every job. Call for a quick quote.
- Rain getting behind render or cladding at a joint
- Joints with sealant missing in places
- Weathered mastic that no longer stretches
When it isn’t the sealant
Some problems need a builder, plumber or other trade rather than us:
- Rising or penetrating damp from elsewhere in the wall
- Adding movement joints to masonry that has none
- Cracks in the bricks or render themselves, away from the joints
Not sure which it is? You can call 0345 464 0079 or email us and we will tell you honestly before booking.
Joints and surfaces we work on
- Joints between brick and frames
- Render & cladding joints
- Concrete & block
- Brickwork movement joints
- Copings & trims
- Façade panels
External mastic in Cuxton
As ARBOMaster approved applicators, we choose exterior sealants to suit the joint and the surfaces. Some surfaces need a primer before sealing and we use one wherever it does. We work on copings & trims, joints between brick and frames and concrete & block, and people most often call us about gaps where render, brick and frames meet and leaking joints around cladding and façade panels.
Somewhere as small as Cuxton, homes and farm buildings often face open ground, 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.
All of our work is guaranteed for twelve months, and the guarantee is the same wherever you are.

- Where
- Cuxton (ME2)
- Region
- Medway
- Cover
- 12 months on all our work
- Quotes
- A clear price before work begins
- Telephone
- 0345 464 0079
- Updated
- 26 October 2026
Work for landlords, hotels and businesses
We also work for businesses, from offices to washrooms and kitchens. For commercial premises, we can talk through working times when we quote.
We also work for property managers and facilities teams. Several sites can be quoted together.
Why act early in Cuxton
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. Around Cuxton, older homes often have timber in their floors and frames, and water through a failed joint can rot timber if it’s left.
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.
What you get with us
- A choice of colours where the product allows
- A 12-month guarantee on all work
- 4.9 on Google from 180+ five-star reviews
- Full insurance on every job
Read what affects the cost and customer reviews.
What we do, step by step
A visit follows a simple pattern: we look at the joints together, protect the area around them, do the work and tidy away. It normally takes anything from a few hours to several days, depending on the building. For a village or hamlet like Cuxton, the journey is planned in advance: tell us about narrow lanes, gates, long drives and where we can park. Everything for the job comes with us, so a second trip is avoided where possible.
- We start by checking each joint, agreeing the ones to redo and how we’ll reach them.
- Old sealant and any debris are cut and raked out.
- Both sides are cleaned back to sound material and primed if needed.
- Backing rod goes in next, setting the depth and keeping the sealant off the back of the joint.
- A flexible exterior sealant is applied and tooled in a colour to suit the wall.
Preparing for the visit
- Let us know about stairs, lifts or work at height
- Plan for the work area to be out of bounds to pets and children
- Mention if the joints have been sealed before
Ask for a quote
A good description makes for an accurate quote. Let us know the location, the problem and roughly how many joints, and add pictures by email if you can.
Related advice
Common questions in Cuxton
Will you come out to Cuxton?
Yes, Cuxton is covered. 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.
Do you cover Cuxton for external mastic?
Yes. Our work covers London and the South East, and Cuxton is part of that. Just call 0345 464 0079 or email us with a few details of the job, and we will give you a clear quote.
Will it make a mess?
No. We protect the surfaces around the joints, and we clear up the old sealant and our materials before we leave.
Is it OK to seal over old sealant?
No, because it fails. The old sealant always comes out first, so the new sealant bonds properly.
Will the old sealant be removed?
Yes, every time. New silicone does not stick to old silicone, so the joint is cleaned back first.
Is it worth trying it myself?
For a simple, easy-to-reach joint, a careful DIYer can do a reasonable job. The usual mistakes are sealing over old sealant, sealing a damp joint and using too much.
When will the joints need doing again?
That varies with the weather the wall faces, how much it moves and the sealant used. Sealant is a maintenance item, so check the joints once a year.
Can you seal joints between two different materials?
Yes. The old joint is removed, both surfaces cleaned and primed where needed, and a flexible sealant applied. We pick a colour that works with both materials.
Surface by surface
Render joints
Render has movement joints and stop beads that need sealing. They’re resealed in a sealant that suits the render.
Concrete and blockwork
Big joints in concrete need careful depth control. Backing rod sized to the joint sets it and keep the sealant to the right depth.
Also near Cuxton
Also in Cuxton
Cuxton buildings and 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. With historic houses such as Starkey Castle (about 0.9 miles south) nearby, there’s older building stock in the area around Cuxton as well as newer homes. Where a home is older, older brick and stone need a sealant that suits them, at the right joint depth.
For site and facilities teams at buildings such as Cuxton Community Infant School, movement joints, cladding joints and gutters on larger buildings need the same care as a house’s. In the older streets around Church of St Michael and All Angels, old and new materials meet at the roofline and walls, which is where sealant earns its keep. For landlords with property near Cuxton station, split movement joints are easy to miss on a rental until damp shows inside.
Cuxton is about 2 miles south-west of Rochester, in Medway. For external mastic in and around Cuxton, please ring 0345 464 0079 or drop us an email for a quick quote. We’re based in Crawley and cover Medway. Our area takes in 68 places across Medway. For nearby work, see our London page.
Work in ME2 is quoted and booked the same way as anywhere else. External mastic is available to properties on Station Road, Charles Drive and James Road. Close by, we work in Lower Bush (1 mile west), North Halling (1 mile south-west), Upper Bush (1 mile west), Borstal (1 mile east) and Halling (2 miles south). Larger places within reach include Gillingham (5 miles east), Chatham (4 miles east), Rainham (7 miles east), Luton (4 miles east), Park Wood (7 miles east) and Lordswood (5 miles south-east).
Local landmarks in Cuxton
Around Cuxton, our work takes us to homes and buildings near Baty's Marsh and Strood Academy and the streets around them. Cuxton has its own railway station: Cuxton station. A little further out are Rochester Castle (2.3 miles north-east) and French Hospital (2.4 miles east). Green spaces nearby include Ranscombe Farm and Gad's Hill.
Quotes for external mastic in Cuxton
The price is agreed before any work begins. It’s based on:
- The number of rooms or windows
- When we can work, for business premises
- How easy the joints are to reach
- Any mould that needs treating
A few things move the cost up or down: how much old sealant there is and how stubborn it is, whether mould needs treating, and whether we need extra access for height. We take all of that into account in your quote.
What we need to know
Before you ask for a quote, have a think about:
- Any access issues, like height or stairs
- If someone has resealed it before
- What the problem is, such as mould, gaps, leaks or cracking
- Where the property is
Asking for a quote is easy: tell us what needs doing and where and its rough size. Photos by email help us understand the job, and we will take it from there.
DIY versus a professional finish
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.
If you’re set on DIY, put the effort into preparation: remove every trace of old sealant, clean and dry the joint, and follow the product’s cure time. If it fails, we can still redo it.
