East Sussex · England
Broyle Side External Mastic
External mastic for Broyle Side and the surrounding area: careful preparation, the right product and tidy work. Ask us for a quick quote.
- Movement joints with cracked, split or missing sealant
- Failed sealant between panels on a façade
- Failed seals between different materials
About our external mastic in Broyle Side
Where two different materials meet, such as brick and render or blockwork and metal, they move at different rates. A flexible exterior sealant takes up that movement where a rigid filler would soon crack. If you are dealing with joints with sealant missing in places and panel joints letting water in, we can help.
Older homes in small places like Broyle Side 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.
A 12-month guarantee comes as standard.

- Where
- Broyle Side (BN8)
- Wider area
- East Sussex
- Guarantee
- A year, on every job
- Price
- Quoted before any work starts
- Telephone
- 0345 464 0079
- Last updated
- 26 October 2026
Signs you need external mastic in Broyle Side
Every building moves. Brickwork grows a little over the years, blockwork and concrete shrink, and all of it moves with heat and moisture. All of that ends up in the joint sealant.
These are the problems we are asked about most:
- Failed sealant between panels on a façade
- Failed seals between different materials
- Joints pointed up with cement by mistake
- Brick movement joints where the sealant has split
If you look after a building such as Ringmer Community College and Sixth Form, larger buildings have long runs of movement joint that eventually need resealing.
What your quote should include
- Whether all the old sealant comes out first
- How the joint is cleaned and prepared
- What happens if the job turns out different
- Whether they’re fully insured
DIY sealant or a professional job?
Overfilling a joint is a classic DIY mistake. A heavy bead looks messy and copes badly with movement, and getting the depth right matters as much as the look.
The biggest DIY mistake is sealing over old sealant. New silicone will not bond to old, so it lifts and traps water and mould underneath. Everything old must be removed first.
Towns and villages near Broyle Side
What else we do in Broyle Side
Common questions in Broyle Side
Can you help a landlord with a rental near Glynde station?
Yes. We work for landlords and agents as well as householders. Just ring 0345 464 0079 or send us an email with the address and what needs doing, and we’ll give you a clear quote.
Is Broyle Side in your area for external mastic?
Yes. We work across London and the South East, and Broyle Side is part of that. You can phone 0345 464 0079 or email us and let us know what needs doing.
Do you guarantee your work?
Yes. Every job comes with our one-year guarantee.
Should I try DIY first?
That depends on the joint. Work at height, movement joints, fire-rated gaps and large areas are best left to a professional.
Can you work on commercial sites?
Yes. Larger jobs can be planned room by room or area by area to suit the site.
Where do you work from?
We are based in Crawley, West Sussex, and we cover South East England, London and all of Scotland.
Are you an approved applicator?
Yes. We hold ARBOMaster approved applicator status and we’re fully insured too.
What is a movement joint?
Walls move with heat, cold and moisture, and planned joints take up that movement. It’s closed with backing rod and a flexible sealant.
Landlord and commercial work in Broyle Side
Landlords and letting agents in Broyle Side can book us as well as householders. Sealant work between tenants is a simple way to keep a property in good order before the next move-in.
We regularly work with letting and managing agents. Tell us the address, the job and how access works and we’ll quote.
What happens on the day
We work through the job in order: protection first, then preparation, sealing and a tidy-up. Typically it takes anything from a few hours to several days, depending on the building and we leave things clean and tidy. For a village or hamlet like Broyle Side, the journey is planned in advance: tell us about narrow lanes, gates, long drives and where we can park. 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.
- 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.
Before we arrive
- Let us know about earlier repairs to the joints
- For business premises, tell us about site rules or sign-in
- Keep pets and children clear of the area while we work
Getting a quote
Every job is quoted individually, so the first step is telling us about yours. Just call 0345 464 0079 or drop us an email with the details, and pictures are welcome.
Related advice
Why it’s worth doing now in Broyle Side
It often makes sense to reseal all the failing joints on an elevation together. Joints of the same age tend to fail together and it means sorting access once. Older cottages and farmhouses around Broyle Side can have timber floors and frames, and water through a failed joint can rot timber if it’s left.
Rather than a set price list, we look at what your job involves: the amount of work, the old material and the access. The price is agreed before we begin.
Why Broyle Side clients choose us
- Over 20 years’ experience
- You choose the colour before work begins
- Tidy, careful work
- Domestic, commercial and hotel work
How we quote for external mastic
Every job gets its own quote. These are the things that affect it:
- Whether there’s mould to deal with
- The old material and how stubborn it is
- The number of rooms or windows
- Which sealant suits the joint
There are no prices on our website, because each job is priced on what it involves. Call for a quick quote.
Helping us quote
To help us quote quickly, please include:
- Pictures of the joints, sent by email
- What’s wrong with the joints now
- The address or postcode of the job
- If it’s domestic, commercial or a hotel
The more we know about the job, the more useful the quote. Let us know the location, the problem and roughly how many joints, and add pictures by email if you can.
Different surfaces, different methods
Joints between dissimilar materials
Wherever two materials meet, they move differently. We seal the joint with a flexible exterior sealant.
Concrete and blockwork
Big joints in concrete need careful depth control. We size the backing rod to the gap and keep the sealant to the right depth.
Broyle Side buildings and the weather
The South East is one of the drier parts of the UK, but outside sealant still needs a dry, clean surface, so outdoor work is planned around the forecast. Historic houses like Glyndebourne (about 1.7 miles south) are a reminder that the area around Broyle Side has older buildings as well as new. In older buildings, older brick and stone need a sealant that suits them, at the right joint depth.
For landlords with property near Glynde station, failed wall and movement joints let damp in, so they’re worth checking between tenancies. If you live in an older home near The Parish Church of St Mary the Virgin, an extension built onto an older house moves differently, and the joint between them takes the strain.
Broyle Side is about 3 miles north-east of Lewes, in East Sussex. We provide external mastic to homes and businesses in Broyle Side and nearby. Across East Sussex, we cover 289 places, Broyle Side among them. There’s also a page for Brighton, roughly 10 miles from Broyle Side.
Our applicators cover all of the BN8 postcode area for external mastic. External mastic is available to properties on Broyle Paddock, Ballard Drive and Turnpike Close and the roads around them. If you are just outside Broyle Side, we cover Norlington (1 mile west), Upper Wellingham (2 miles west), Rose Hill (2 miles north), Barcombe Mills (2 miles north-west) and Isfield (3 miles north). Within a short drive, we also cover Eastbourne (12 miles south-east), Seaford (9 miles south), Lewes (3 miles south-west), Hailsham (8 miles east), Crowborough (11 miles north) and Uckfield (5 miles north).
What’s near Broyle Side
Around Broyle Side, our work takes us to homes and buildings near Ringmer Primary and Nursery School and The Green Man pub, among other places. Broyle Side’s nearest station is Glynde station, about 2.9 miles south of the centre. A little further out are Museum of Agricultural Bygones (0.8 miles south-east) and Lewes Castle (3.6 miles south-west). The countryside around Broyle Side includes Malling Down and Cliffe Hill.
