East Sussex · England
Rusher's Cross External Mastic
Movement joints in Rusher's Cross need attention? We remove the old material, prepare the joints and seal them properly, with a 12-month guarantee.
- Plants rooting in failed movement joints
- Joints pointed up with cement by mistake
- Hard, crazed mastic that has stopped moving
How we handle external mastic in Rusher's Cross
We cut out failed sealant, set the joint depth with closed-cell backing rod and reseal with a low-modulus exterior sealant. The colour is chosen to suit the brick or render. We’re often asked to deal with sealant pulling away from one side of the joint and old sealant gone brittle and cracked, on joints between brick and frames, render & cladding joints and façade panels.
Older homes in small places like Rusher's Cross may be stone, brick or timber-framed, often with later extensions. Where one material meets another is where water usually gets in, and they need the right sealant at the right depth.
A one-year guarantee comes as standard.
- Place
- Rusher's Cross (TN20)
- Wider area
- East Sussex
- Guarantee
- A year, on every job
- Price
- Quoted before any work starts
- Call
- 0345 464 0079
- Updated
- 26 October 2026
Questions from Rusher's Cross
Will you come out to Rusher's Cross?
Yes, we do. Our work covers 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 work for landlords with property near Wadhurst station?
Yes. We work for landlords and agents as well as homeowners. Just ring 0345 464 0079 or email us with the address and what needs doing, and we will give you a clear quote.
How do you reach high-level joints?
That depends on how high the joints are and the ground below. Ground-floor joints are simple; for higher work, tell us about the building and we’ll confirm what’s needed.
Will the new joint stand out?
There’s a good range of exterior colours, including greys, browns, whites and stone tones. We choose the closest to your brick or render so it does not stand out.
How long will you be here?
Typically it takes anything from a few hours to several days, depending on the building. Bigger jobs take longer, and we will tell you how long to expect.
When is the sealant fully cured?
Many sealants skin over quickly but take longer to cure fully. We will tell you how long to leave the joint.
Where is Mr Mastic based?
Mr Mastic is based in Crawley. We cover Rusher's Cross and the rest of East Sussex.
Do I need to be at home?
If the work is inside, we need someone to let us in. Once we have agreed the job, you don’t need to watch us work.
Quotes for external mastic in Rusher's Cross
We do not publish a price list, because jobs vary so much. The quote depends on:
- How easy the joints are to reach
- How many rooms, windows or areas are involved
- Whether old sealant or filler has to be cut out
- Whether there’s mould to deal with
Leaving a failed joint generally makes the job bigger, not smaller. If you’re unsure, phone 0345 464 0079 or send us an email and we’ll give you an honest view and a quote.
Helping us quote
To help us quote quickly, let us know:
- How we’d reach the joints
- Roughly how big the job is
- A few photos by email, if you can
- Any previous sealing or DIY work
We don’t publish a price list, because every job is different. Instead, we give you a clear quote for your job. To arrange one, phone 0345 464 0079 or email us.
Leave it or put it right?
An open joint keeps letting water into the wall with every downpour. Wet masonry is more easily damaged by frost, so the problem grows beyond the joint itself. Around Rusher's Cross, 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 reflects the work involved, not a rough estimate. That is why we ask a few questions first and agree the price before starting.
Why book with us
- Tidy, careful work
- One-year guarantee on every job
- White, clear, grey or another colour, product permitting
- Old sealant always removed completely
Read our cost guide and customer reviews.
What we’re called out for in Rusher's Cross
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.
The problems people usually mention when they call include:
- Cracked joints where brick meets render or frames
- Hard, crazed mastic that has stopped moving
- Rigid filler in a joint that should flex
- Damp patches traced to an open external joint
In the older streets around The Parish Church of St John the Baptist, older walls, gutters and the joints where extensions meet them need a flexible sealant.
Comparing quotes
- How long to leave it before use
- Is the old sealant removed completely?
- Whether the sealant suits the joint
- What the quote includes, VAT included or not
DIY sealant or a professional job?
A careful DIYer can reseal a simple joint, like a short, easy-to-reach joint indoors. The common mistakes are sealing over old sealant, sealing a damp joint and using far too much.
Overfilling a joint is a classic DIY mistake. A heavy bead looks messy and copes badly with movement, and the joint depth matters as much as the finish.
Landlords, agents and businesses in Rusher's Cross
Hotels need rooms back in use, so we plan the work room by room. We have worked in hotels as well as homes and businesses.
We regularly work with letting and managing agents. Tell us the address, the job and how access works.
What external mastic looks like in Rusher's Cross
Historic houses like Wadhurst Castle (about 2.6 miles north-east) are a reminder that the area around Rusher's 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. 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.
For landlords with property near Wadhurst station, failed wall and movement joints let damp in, so they’re worth checking between tenancies.
Rusher's Cross is about 5 miles east of Crowborough, in East Sussex. From the centre of Rusher's Cross to the outskirts, external mastic is available for homes and businesses alike, from flats and houses to offices and hotels. Rusher's Cross is one of 289 places in East Sussex where we work for external mastic. Crawley is on our list too, about 21 miles from Rusher's Cross.
Postcode districts we cover here for external mastic: TN20. Other places close to Rusher's Cross include Tidebrook (1 mile north-east), Coggins Mill (1 mile south-west), Mayfield (2 miles south-west), Mark Cross (2 miles north-west) and Argos Hill (2 miles west). Within a short drive, we also cover Bexhill-on-Sea (15 miles south-east), Hailsham (12 miles south), Crowborough (5 miles west), Uckfield (10 miles south-west), Polegate (15 miles south) and Heathfield (5 miles south).
Local landmarks in Rusher's Cross
Around Rusher's Cross, our work takes us to homes and buildings near Wadhurst Park. Rusher's Cross’s nearest station is Wadhurst station, roughly 2.7 miles north. A little further out are Ticehurst House Hospital (4.8 miles east). Not far away are Bewl Water and Crowborough Country Park.
Places near Rusher's Cross
Also in Rusher's Cross
What we do, step by step
We work through the job in order: protect, prepare, seal, tidy. Typically it takes anything from a few hours to several days, depending on the building, and the area is left clean. Somewhere as small as Rusher's Cross, access is often the only tricky part. If the job is outside, mention outbuildings, exposed walls and how to reach them.
- First we look over the joints with you, agree which to renew and talk through access.
- The old mastic and anything lodged in the joint is removed.
- Both sides are cleaned back to sound material and primed if needed.
- We push in closed-cell backing rod so the sealant is the right depth and bonds to the sides only.
- We gun in a flexible exterior sealant in a colour that suits the wall and tool it neatly.
Preparing for the visit
- Tell us about access, such as stairs, a lift or high-level joints
- Move anything stored near the joints
- On commercial sites, let us know about site rules
Get a quote
Getting a quote is simple: let us know what needs doing and where and its rough size. Photos by email help us understand the job, and we’ll come back to you with a quote.
Related advice
When something else is needed
Honest advice matters more to us than a booking, so here’s what new sealant won’t do:
- Cracking across the wall rather than at a joint
- Subsidence or other structural problems
- Render that’s blown, hollow or coming away
If in doubt, ring 0345 464 0079 or email us and we’ll say what we think before you book.
What we seal
- Render & cladding joints
- Joints between brick and frames
- Façade panels
- Copings & trims
- Brickwork movement joints
- Concrete & block