East Sussex · England
External & façade joints in Green Street, East Sussex
Professional external mastic in and around Green Street, with old sealant always removed completely.
- Panel joints letting water in
- Joints with sealant missing in places
- Joints pointed up with cement by mistake
FAQs for Green Street
Does the coastal weather in Green Street affect outside sealant?
Coastal homes put outside sealant through more weather than inland ones, so the choice of sealant and the preparation matter even more. It’s worth checking the walls that face the sea first.
Do you cover smaller places like Green Street?
Yes. Green Street is within the area we cover, which takes in towns, villages and rural addresses. We work across London and the South East. Just mention lanes, gates or anything else about the route when you book.
Where are you based?
We’re based in Crawley, and we work across South East England, London and Scotland.
Is it OK to seal over old sealant?
No, because it fails. We remove every bit of old sealant first, so the new joint bonds to clean surfaces.
Are you ARBOMaster approved?
Yes. We are an ARBOMaster approved applicator.
Will there be a smell?
Some sealants have a smell while they cure, which fades as it sets. Opening a window helps.
What do you need from me for a quote?
Just the basics: where it is, what you’ve noticed and how we reach it. Then phone 0345 464 0079 or send us an email.
Do you work for letting agents?
Yes, often. We can quote for several properties at once.
About our external mastic in Green Street
Short cuts in external joints show up within a season or two. Overfilled joints, missing backing rod and sealant laid over old sealant all tend to fail early. We take the old material out and do it properly. Typical jobs include sealant that has lost its bond to the brick or render and failed seals between different materials, on render & cladding joints, brickwork movement joints and concrete & block.
In a village or hamlet like Green Street, older cottages and farm buildings often stand in the open, where walls and rooflines take the weather head on. Gutter joints and wall joints there need a sealant that can flex and stay put.
Your job is guaranteed for a year, as with all our work.
- Where
- Green Street (TN38)
- Wider area
- East Sussex
- Guarantee
- 12 months on all our work
- Quote
- A clear price before work begins
- Call
- 0345 464 0079
- Last updated
- 26 October 2026
How the visit works
All our tools and materials come with us in the van, so you do not need to buy or prepare anything. After a quick look at the joints together, the area is protected and the work begins. Most jobs take a few hours for a handful of joints, longer for a whole elevation. Somewhere as small as Green Street, access is often the only tricky part. For outside work, also let us know about exposed walls and any outbuildings involved.
- We start by checking each joint, agreeing the ones to redo and how we’ll reach them.
- Old sealant and any debris are cut and raked out.
- 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.
How to prepare
- Mention any tricky access
- Clear items away from the joints we are working on
- Mention if the joints have been sealed before
How to get a quote
For external mastic in Green Street, ring 0345 464 0079 or drop us an email. A short description of the job and where it is helps us quote, and we will agree the price before any work begins.
Related advice
Quotes for external mastic in Green Street
There’s no set price list. What we look at:
- How easy the joints are to reach
- Any working-time requirements on site
- The size of the job
- Which sealant suits the joint
A few things move the cost up or down: the old material and how easily it comes out, any mould to treat, and whether we need extra access for height. Your quote takes all of that into account.
What we need to know
To make quoting easier, let us know:
- How we’d reach the joints
- If someone has resealed it before
- The address or postcode of the job
- Pictures of the joints, sent by email
Asking for a quote is easy: let us know the job and the location and its rough size. A few pictures by email make the job easier to understand.
What the job involves on each surface
Cladding and façade panels
If the façade has a specified sealant, that’s what we use, or one the system allows. Send us any details you have about the façade.
Brickwork movement joints
People sometimes point up a brick movement joint by mistake. If that is happened, we rake it out and reseal it properly where it can be done safely.
Why deal with it now?
A properly done movement joint is an even line in a colour that suits the wall. A hurried job with smeared edges and no backing looks worse and fails sooner, so it pays to do it properly once. Older cottages and farmhouses around Green Street can have timber floors and frames, where water from a failed joint can cause rot if it’s left.
Rather than a set price list, we price the job in front of us: the amount of work, the old material and the access. The price is agreed before we begin.
Why us?
- Sanitary silicone with an anti-fungal additive in wet areas
- Rated 4.9 stars on Google
- Approved under the ARBOMaster scheme
- Trusted Arbo and Everbuild sealants
Signs you need external mastic in Green Street
Buildings move more than people expect. Clay bricks expand slightly over their life, concrete and block shrink, and everything moves with temperature and wet. All of that ends up in the joint sealant.
Any of these means the joints need attention:
- Damp patches traced to an open external joint
- Weeds or debris growing in open joints
- Weathered mastic that no longer stretches
- Sealant pulling away from one side of the joint
In the older streets around The Parish Church of St George, older walls, gutters and the joints where extensions meet them need a flexible sealant.
Questions to ask before you book
- Whether you can choose the colour
- Is VAT in the price?
- The length of the guarantee
- Which sealant they’ll use, and why
DIY sealant or a professional job?
Sealing over old silicone is the commonest DIY error. New silicone will not bond to old, so it peels away and traps moisture behind it. Everything old must be removed first.
If you are set on DIY, put the effort into preparation: remove every trace of old sealant, clean and dry the joint, and follow the product’s cure time. If it doesn’t work out, we can still put it right.
Walls and rooflines in Green Street
Green Street is close to 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. With historic houses such as Durhamford Manor (about 4.4 miles north) nearby, there’s older building stock in the area around Green Street as well as newer homes. Where a home is older, older walls and rooflines need a sealant that moves with them and suits the material.
Rented homes near Crowhurst station change hands often, and split movement joints are easy to miss on a rental until damp shows inside. Managing a site like Crowhurst CofE Primary School? Then movement joints, cladding joints and gutters on larger buildings need the same care as a house’s.
Green Street is about 2 miles west of Hastings, in East Sussex. Homes, rented property, offices and hotels in Green Street can book us for external mastic, old or new, large or small. Every job comes with our one-year guarantee. Green Street is one of 289 places in East Sussex we cover for external mastic. You can also see our page for Brighton, about 28 miles away.
Postcode districts we cover here for external mastic: TN38. We also cover Crowhurst (1 mile north-west), Hollington (2 miles east), Bulverhythe (2 miles south), Silverhill (2 miles east) and Baldslow (2 miles north-east). Further out, we also cover Eastbourne (12 miles south-west), Bexhill-on-Sea (3 miles south-west), Hailsham (11 miles west), Polegate (12 miles west), Hastings Old Town (4 miles south-east) and Old Town (13 miles south-west).
Around Green Street
In Green Street, that means homes and buildings near The St Leonards Academy, Filsham Reedbed and The Plough Inn, among other places. The nearest railway station is Crowhurst station, roughly 0.8 miles north-west. Well-known places in the area include Hastings Castle (3.6 miles south-east) and Bexhill Hospital (2.5 miles south-west). Open spaces near Green Street include Church Wood and Robsack Wood and Senlac Hill.
How to look after the new joints
Good habits help new joints last longer. Our tips:
- Tell anyone working on the walls about the movement joints
- Avoid pressure-washing directly into sealant joints
- Clear growth from the base of walls and joints
- Check the sealant is paintable before painting near it
Avoid pressure-washing straight into the joints. High-pressure water can lift the edges and let water in behind.
Small splits are the time to act. Then it’s a straightforward cut-out and reseal before water has had years to get in.