Kent · England
External & façade joints in Stone Cross, Kent
Specialist external mastic for Stone Cross: the right sealant, proper preparation and a neat finish. Ask us for a quick quote.
- Joints where the bead has come unstuck
- Water getting into walls through failed joints
- Movement joints with cracked, split or missing sealant
External mastic for homes and businesses in Stone Cross
For buildings in Stone Cross, we reseal external joints of all kinds, from brick movement joints to cladding panels. The preparation is the same whatever the wall: clean joint faces and the right depth. If you have gaps where render, brick and frames meet and brick movement joints where the sealant has split, we can help.
Older homes in small places like Stone Cross may be stone, brick or timber-framed, often with later extensions. The joints where those materials meet are the weak points, and they need the right sealant at the right depth.
Whatever the size of the job, you get the same one-year guarantee in Stone Cross and across Kent.
- Location
- Stone Cross (TN3)
- Wider area
- Kent
- Cover
- 12 months on all our work
- Price
- A clear quote up front
- Phone
- 0345 464 0079
- Updated
- 26 October 2026
Honest limits
We’d rather tell you now than do work that will not last, so here’s what sealant can’t put right:
- Loose or hollow render, which needs re-rendering
- Damp from another source, such as a leaking gutter or a bridged damp-proof course
- Subsidence or other structural problems
If in doubt, call 0345 464 0079 or email us and we will say what we think before booking.
Joints and surfaces we work on
- Copings & trims
- Concrete & block
- Joints between brick and frames
- Façade panels
- Render & cladding joints
- Brickwork movement joints
Also near Stone Cross
What else we do in Stone Cross
Looking after it afterwards
Simple care keeps the joints in good condition. Our advice:
- Walk round the building once a year and look at the joints
- Deal with leaking gutters that soak the joints below
- Never let anyone fill a movement joint with mortar
- Have failed joints looked at early
Make sure anyone working on the wall later knows where the movement joints are. They should be kept open and resealed, not filled.
A joint that has stopped moving pushes the movement elsewhere, often as cracks near the joint. Resealing it early helps prevent that.
DIY sealant or a professional job?
If you are set on DIY, put the effort into preparation: take out all the old sealant, make sure the joint is clean and dry, and give it the full cure time. If it fails, we can still redo it.
Sealing over old silicone is the commonest DIY error. Silicone doesn’t stick to old silicone, so it lifts and traps water and mould underneath. Everything old must be removed first.
What the job involves on each surface
Render joints
Cracks along render joints let water in behind the coat. A sound joint keeps the render dry behind.
Cladding and façade panels
Where a cladding system has its own specified sealant, we follow it, or one the system allows. Send us any details you have about the façade.
What we are called out for in Stone Cross
If plants are growing out of a joint, the sealant has usually failed or was never there. Dirt and roots then trap moisture in the joint and make things worse.
Common reasons people contact us are:
- Failed sealant between panels on a façade
- Joints with sealant missing in places
- Joints pointed up with cement by mistake
- Hard, crazed mastic that has stopped moving
For site and facilities teams at buildings such as Fordcombe Church of England Primary School, movement joints, cladding joints and gutters on larger buildings need the same care as a house’s.
Before you book anyone
- The length of the guarantee
- What happens if they find a problem under the old sealant
- When the joint can take water or movement
- Whether they’re fully insured
Leave it or put it right?
A low-modulus sealant is chosen because it moves without pulling hard at the edges. That protects surfaces like brick, render and concrete. A stiffer product can damage the joint edge as it fails. Older cottages and farmhouses around Stone Cross can have timber floors and frames, and water through a failed joint can rot timber if it’s left.
Doing several joints on one visit normally makes better use of the time than several visits, so tell us about everything that needs sealing. You will get one clear quote for the whole job.
Why Stone Cross clients choose us
- Sanitary silicone with an anti-fungal additive in wet areas
- A 12-month guarantee on all work
- ARBOMaster approved applicator
- Sealant colour chosen to suit
Take a look at our cost guide and customer reviews.
The process
On the day, there’s very little for you to do. Show us the job and we will take it from there. The work itself takes a few hours to a few days, depending on the length of joint and the access from start to finish. Somewhere as small as Stone Cross, access is often the only tricky part. For outside work, also let us know about exposed walls and any outbuildings involved.
- First we look over the joints with you, agree which to renew and talk through access.
- We cut out the failed sealant and rake out any dirt or growth.
- We clean both faces of the joint and prime them where the product calls for it.
- Closed-cell backing rod is fitted to set the depth and stop three-sided bonding.
- The new sealant, chosen to suit the brick or render, is applied and tooled to a neat finish.
Preparing for the visit
- Mention any leaks or damp you’ve noticed
- Tell us if parking is tricky
- Let us know about earlier repairs to the joints
How to get a quote
For a quick quote, get us on the phone, or send an email if you’d rather. Describe what needs sealing and we’ll talk you through the work.
Read more
FAQs for Stone Cross
Do you cover Stone Cross for external mastic?
Yes, Stone Cross is within the area we cover. Our work covers London and the South East. You can phone 0345 464 0079 or email us and tell us what needs doing, and we’ll give you a clear quote.
I let a flat near Ashurst Kent station. Can you help?
Yes, rental work is part of what we do. Just ring 0345 464 0079 or drop us an email and tell us about the property, and we will give you a clear quote.
How long does the job take?
That depends on the amount of work, but most jobs take a few hours for a handful of joints, longer for a whole elevation. We will tell you when we quote.
Why do you put foam in the joint first?
Backing rod goes into deeper joints as a matter of course. It controls the depth and stops the sealant bonding to the back.
Can you do several jobs on one visit?
Yes, and it often makes sense. Doing several areas at once is usually more efficient, so mention them when you ask for a quote.
Will there be a smell?
Sometimes, a little. Any smell clears as the sealant cures, and ventilation helps.
What sealant do you use?
The product depends on the job: sanitary silicone where it gets wet, and sealants suited to movement or weather elsewhere. We use products from Arbo and Everbuild.
Are you fully insured?
Yes, we are fully insured.
Stone Cross buildings and the weather
Historic houses like Groombridge Place (about 1.1 miles south-east) are a reminder that the area around Stone Cross has older buildings as well as new. Where a home is older, older walls and rooflines need a sealant that moves with them and suits the material. Rainfall in the South East is lower than in much of the UK, but outside sealant still needs a dry, clean surface, so outdoor work is planned around the forecast.
If you let a flat or house near Ashurst Kent station, outside joints that have cracked can let damp into a rental, so check them between lets. For an older house near a landmark such as Church of St Martin of Tours, an extension built onto an older house moves differently, and the joint between them takes the strain.
Stone Cross is about 4 miles west of Royal Tunbridge Wells, in Kent. Across the TN3 area, we can carry out external mastic at your property. Stone Cross is one of 922 places in Kent we cover. Crawley is on our list too, about 16 miles from Stone Cross.
Here we cover the TN3 postcode area for external mastic. External mastic is available to properties on Ashurst Road and Groombridge Road and the roads around them. If you’re just outside Stone Cross, we cover Ashurst (1 mile west), Fordcombe (1 mile north), Groombridge (1 mile south), Walter's Green (1 mile north-west) and Teasley Mead (1 mile west). Further out, we also cover Sevenoaks (10 miles north), Royal Tunbridge Wells (4 miles east), Tonbridge (7 miles north-east), Kings Hill (14 miles north-east), Paddock Wood (10 miles east) and Southborough (4 miles north-east).
Landmarks near Stone Cross
Locally, jobs take us to homes and businesses close to Chafford Arms, among other places. Stone Cross’s nearest station is Ashurst Kent station, about 1 mile west of the centre. Other landmarks nearby include Tunbridge Wells Homeopathic Hospital (3.7 miles east) and Bolebroke Castle (3 miles west). Green spaces nearby include Broadwater Warren RSPB Reserve.