Kent · England
External & façade joints in Gill's Green, Kent
External mastic for Gill's Green, by sealant specialists with 20+ years’ experience. 180+ five-star Google reviews and a 4.9 rating.
- Damp patches traced to an open external joint
- Failed sealant between panels on a façade
- Sealant pulling away from one side of the joint
External mastic in Gill's Green, done properly
A movement joint is a deliberate break that lets a wall expand and contract. Its sealant has to flex with the building, season after season, so once it splits or hardens, the joint stops working and water gets in. We work on joints between brick and frames, concrete & block and render & cladding joints, and the jobs we see most are brick movement joints where the sealant has split and joints pointed up with cement by mistake.
Around Gill's Green, older buildings can be stone, brick or timber-framed, many with extensions added later. Where one material meets another is where water normally gets in.
We guarantee the work for a year. If something is not right with it in that time, tell us and we will put it right.
- Place
- Gill's Green (TN18)
- Region
- Kent
- Cover
- 12 months on all our work
- Quote
- A clear quote up front
- Telephone
- 0345 464 0079
- Page updated
- 26 October 2026
Leave it or put it right?
A failed movement joint lets water into the wall, behind render and cladding. Resealing early keeps the job to the joint itself, instead of the wall and finishes around it. Around Gill's Green, older homes often have timber in their floors and frames, and water through a failed joint can rot timber if it’s left.
Homes and businesses are quoted the same way: the amount of work, how we reach it and what it needs. Ask us for a quote and we will go through it with you.
Why us?
- Tidy, careful work
- White, clear, grey or another colour, product permitting
- Arbo and Everbuild products
- We are fully insured
Take a look at what affects the cost and what customers say.
Nearby places to Gill's Green
More services for Gill's Green
Questions from Gill's Green
Will you come out to Gill's Green?
Yes. Gill's Green is within the area we cover, which takes in towns, villages and rural addresses. Our work covers London and the South East. Let us know about access, parking and anything unusual about getting there when you book.
Can you help a landlord with a rental near Etchingham station?
Yes, we work for landlords and letting agents. You can call 0345 464 0079 or send us an email with the address and a few details, and we will give you a fixed price before we start.
Do you have insurance?
Yes, we are fully insured.
How long does external mastic take?
Typically it takes a few hours to a few days, depending on the length of joint and the access. Bigger jobs take longer, and we’ll say how long yours will take.
Will you leave a mess?
Tidy work is part of the job. We protect what’s around the joints.
Should I try DIY first?
That depends on the joint. High-level, external movement and fire-rated joints are professional jobs, while a short indoor joint may be within reach.
How do I get a quote for external mastic in Gill's Green?
There’s no set price, as it depends on the job: how much there is, what’s there now, how we reach it and what it needs. We agree the price before any work begins.
What’s an expansion joint in brickwork?
Brickwork, render and cladding all move a little, so long walls have planned gaps to take that movement. The gap is sealed with a flexible sealant over backing rod.
What affects the quote in Gill's Green
For a quick quote, just ask. What matters most is:
- Working hours on commercial sites
- How much old sealant there is and how hard it is to remove
- The size of the job
- The type of sealant required
What it costs depends on the amount of work, how much old material has to come out and how easy the joints are to reach. We give a clear quote before any work starts, so you know where you stand.
Asking for a quote
What to tell us when you ask for a quote:
- If it’s domestic, commercial or a hotel
- Access, such as stairs, a lift or height
- A few pictures by email, if you can
- Roughly how big the job is
We quote each job on its own. Just ring 0345 464 0079 or send us an email with the details.
How it works
A visit follows a simple pattern: we look at the joints together, mask and protect the surrounding surfaces, carry out the job and clear up. It normally takes a few hours for a handful of joints, longer for a whole elevation. Somewhere like Gill's Green needs a little journey planning: let us know about lanes, gates and parking. We bring what the job needs, so it can be finished in one trip where possible.
- Each joint is checked and the colour of the new sealant agreed.
- Failed sealant is removed back to clean, sound faces.
- Backing rod goes in so the sealant can stretch between the two faces.
- We prime the faces where required.
- A low-modulus exterior sealant is gunned in and tooled to a neat finish.
How to prepare
- Tell us about access, such as stairs, a lift or high-level joints
- Mention any sign-in or site rules at work premises
- Try not to wet indoor joints just before the visit
Ask for a quote
To get a quote, ring 0345 464 0079 or send us an email with the location and a short description of the problem. We will send you a clear quote before any work starts.
Read more
Aftercare tips
Aftercare is simple, and it makes a real difference:
- Never let anyone fill a movement joint with mortar
- Check external joints each spring
- Tell anyone working on the walls about the movement joints
- Act on the first splits you see
Keep the joints clear of soil, plants and climbing growth. Damp material against the sealant shortens its life.
Water getting behind cladding or render can go unnoticed for a long time. When it finally shows inside, the joint may have been open for years, so it’s worth resealing at the first signs.
What sealant work can’t fix
We will not take on work that won’t last, so these are the limits:
- Damp that is not coming from the joint
- Cracks in the bricks or render themselves, away from the joints
- Adding movement joints to masonry that has none
Not sure which it is? You can call 0345 464 0079 or email us and we’ll tell you honestly before booking.
What we seal
- Façade panels
- Render & cladding joints
- Joints between brick and frames
- Concrete & block
- Copings & trims
- Brickwork movement joints
Surface by surface
Render joints
The face of render can be soft, so a sealant that stretches easily protects the edges. We prime where the product needs it.
Concrete and blockwork
Blockwork and concrete shrink over time and move with the seasons. We reseal their joints with backing rod and a flexible product.
DIY sealant or a professional job?
If you’ve already had a go yourself, that is fine. We cut it out and start again.
A careful DIYer can reseal a simple joint, such as a straightforward joint indoors. The common mistakes are sealing over old sealant, sealing a damp joint and using far too much.
Gill's Green buildings and the weather
With historic houses such as Scotney Castle (about 4.8 miles north-west) nearby, there’s older building stock in the area around Gill's Green 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. Compared with the north and west, the South East gets less rain, but outside sealant still needs a dry, clean surface, so outdoor work is planned around the forecast.
In the older streets around Church of All Saints, older walls, gutters and the joints where extensions meet them need a flexible sealant. If you look after a building such as Marlborough House School, larger buildings have long runs of movement joint that eventually need resealing. Rented homes near Etchingham station change hands often, and failed wall and movement joints let damp in, so they’re worth checking between tenancies.
Gill's Green is about 12 miles south-east of Royal Tunbridge Wells, in Kent. Every kind of property in Gill's Green is covered for external mastic. The work is guaranteed for a year. We cover 922 towns and villages across Kent. For nearby work, see our Crawley page.
Postcode districts we cover here for external mastic: TN18. Local streets include Cranbrook Road, Santers Court and Wellington Cottages. Other places close to Gill's Green include Beal's Green (1 mile south), Hawkhurst (1 mile south), Pipsden (1 mile south-east), The Moor (2 miles south) and Hartley (2 miles north). Further out, we also cover Maidstone (14 miles north), Royal Tunbridge Wells (12 miles north-west), Tonbridge (14 miles north-west), Kings Hill (15 miles north), Foley Park (15 miles north) and Paddock Wood (9 miles north-west).
Around Gill's Green
We work in homes and buildings around The Queen's Hotel, Hawkhurst Church of England Primary School and Collingwood Nature Reserve. The closest station to Gill's Green is Etchingham station, about 4.5 miles south-west. Other landmarks nearby include Old Scotney Castle (4.6 miles north-west) and Ticehurst House Hospital (4.8 miles west). Open spaces near Gill's Green include Bewl Water.