East Sussex · England
External & façade joints in Silverhill, East Sussex
Specialist external mastic for Silverhill: careful preparation, the right product and tidy work. Ask us for a quick quote.
- Moss and dirt in joints with no sealant left
- Sealant that has lost its bond to the brick or render
- Joints pointed up with cement by mistake
How the visit works
We bring everything the job needs with us, so you do not need to buy or prepare anything. Once we’ve agreed what’s being done, the area is protected and the work begins. It normally takes a few hours for a handful of joints, longer for a whole elevation. For a job in Silverhill, we agree the time, the access and parking before the day. If the work is outside, the weather plays a part, as sealant needs a dry surface.
- We look at every joint and agree a colour to suit the wall.
- 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.
- We gun in low-modulus sealant and tool it neatly.
Before we arrive
- Keep pets and children clear of the area while we work
- Mention any sign-in or site rules at work premises
- Mention any leaks or damp you’ve noticed
Get a quote
To get a quote, phone 0345 464 0079 or send us an email and tell us where the job is and what the problem looks like. You will have a clear quote before work begins.
Related advice
About our external mastic in Silverhill
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, and when it fails, the wall takes the strain and water finds a way in. Common call-outs are for weeds or debris growing in open joints and leaking joints around cladding and façade panels, on render & cladding joints, joints between brick and frames and brickwork movement joints.
Homes around Silverhill range from older cottages to newer houses, with walls and rooflines of every type. Older gutters and trims need their joints resealed; newer brick and render need their movement joints kept sound.
All our work comes with a 12-month guarantee, wherever you are in East Sussex.
- Where
- Silverhill (TN38, TN37, TN34)
- Wider area
- East Sussex
- Guarantee
- A year, on every job
- Quotes
- A clear quote up front
- Telephone
- 0345 464 0079
- Updated
- 26 October 2026
How the job changes by surface
Joints between dissimilar materials
Different materials may need different primers. Both surfaces are cleaned and primed as the product requires.
Copings and trims
Coping and trim joints face rain and sun head on. Each is resealed with a weatherproof, flexible sealant.
Silverhill: your questions answered
I let a flat near St Leonards Warrior Square station. Can you help?
Yes. We work for landlords and agents as well as householders, and several properties can be quoted together. Just call 0345 464 0079 or send us an email with the address and what needs doing, and we’ll send you a clear quote.
Do you cover smaller places like Silverhill?
Yes, smaller places are covered as well as towns. We work across London and the South East. Let us know about access, parking and anything unusual about getting there when you book.
Will there be a smell?
Sometimes, a little. Any smell clears as the sealant cures, and ventilation helps.
What sealant do you use?
Each joint gets the product that suits it. Movement, water and weather all affect the choice, and we will tell you what we’re using.
How much does external mastic cost in Silverhill?
We don’t publish prices, because the cost depends on the job: its size, the old material, access and the product needed. You’ll get a clear quote before any work starts.
Do you take out the old sealant first?
Yes. All of the old material is cut out and the joint cleaned before resealing.
Where do you work from?
Our base is in Crawley, West Sussex, and we cover South East England, London and all of Scotland.
Why do you put foam in the joint first?
We fit closed-cell backing rod wherever the joint depth needs controlling. It sets the sealant depth and prevents three-sided bonding, so the joint can move.
Towns and villages near Silverhill
More services for Silverhill
Work for landlords, hotels and businesses
We work for landlords and letting agents as well as homeowners. Sealant work between tenants keeps a property looking cared for.
We also work for businesses, from offices to washrooms and kitchens. On commercial sites, working times can be discussed when we quote.
Silverhill buildings and the weather
Silverhill 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. London and the South East are among the drier parts of the UK, yet outdoor joints still have to be sealed dry, so jobs are booked with the weather in mind.
For an older house near a landmark such as St Matthew's Church, old and new materials meet at the roofline and walls, which is where sealant earns its keep. If you let a flat or house near St Leonards Warrior Square station, split movement joints are easy to miss on a rental until damp shows inside.
Silverhill is about 1 mile west of Hastings, in East Sussex. If you need external mastic in Silverhill, please call 0345 464 0079 or send us an email for a quick quote. We cover East Sussex from our Crawley base, Silverhill included. Our East Sussex coverage runs to 289 places, Silverhill among them. Our Brighton page covers work nearby (30 miles or so).
Jobs for external mastic in TN38, TN37 and TN34 works the same way as everywhere else we cover. If you need external mastic at a property on Duke Road, Vale Road and Drury Lane or anywhere close by, our applicators can take on the job. We also cover Hastings (1 mile east), Hollington (1 mile north-west), St Leonards (1 mile south), Blacklands (1 mile east) and St Helen's (1 mile north-east). We also work in nearby towns such as Eastbourne (13 miles south-west), Bexhill-on-Sea (4 miles west), Hailsham (13 miles west), Polegate (14 miles west), Old Town (14 miles south-west) and Heathfield (15 miles north-west).
Near you in Silverhill
In Silverhill, that means homes and buildings near The Duke pub, Alexandra Park and University School. For rail, the closest station is St Leonards Warrior Square station, about 0.8 miles south of the centre. A little further out are Priory Meadow Shopping Centre (1.3 miles south-east) and The True Crime Museum (1.2 miles south-east). The countryside around Silverhill includes Church Wood and Robsack Wood and Senlac Hill.
When it isn’t the sealant
Honest advice matters more to us than a booking, so here’s what sealant cannot fix:
- Cracked brickwork or render that needs a builder or plasterer
- Render that’s blown, hollow or coming away
- Adding movement joints to masonry that has none
Not sure which it is? You can call 0345 464 0079 or send us an email and we will tell you honestly before you book.
Surfaces we seal
- Brickwork movement joints
- Joints between brick and frames
- Render & cladding joints
- Façade panels
- Copings & trims
- Concrete & block
How to look after the new joints
Looking after new joints is easy:
- Make sure movement joints are not pointed over
- Avoid pressure-washing directly into sealant joints
- Keep soil, plants and ivy away from the joints
- Check the sealant is paintable before painting near it
Keep the joints clear of soil, plants and climbing growth. Damp material against the sealant shortens its life.
Gaps, plants or missing sealant in a joint are worth getting looked at. Earlier resealing means a smaller job and a better result.
Can I do it myself?
The biggest DIY mistake is sealing over old sealant. Silicone doesn’t stick to old silicone, so it peels away and traps moisture behind it. All the old material has to come out first.
The difference is mostly in the preparation and the product. We take joints back to clean, dry surfaces, and the sealant is matched to the joint and its conditions, and the work is guaranteed for a year.
Signs you need external mastic in Silverhill
Sunlight, wet weather and frost wear exterior sealant down. In time it goes hard, crazes on the surface and stops stretching, so the joint eventually tears or comes away from one side.
Signs it’s time to call us include:
- Rain getting behind render or cladding at a joint
- Sealant that has lost its bond to the brick or render
- Old sealant gone brittle and cracked
- Movement joints filled with mortar instead of sealant
For site and facilities teams at buildings such as Christ Church CofE Primary and Nursery Academy, larger buildings have long runs of movement joint that eventually need resealing.
Questions to ask before booking
- How the colour is chosen
- What guarantee comes with the work
- Whether the sealant suits the joint
- Is VAT in the price?