East Sussex · England
External & façade joints in East Dean, East Sussex
Our applicators work in East Dean on sealing brickwork movement joints, render, cladding and façade joints. Old sealant removed completely, joints prepared properly.
- Joints with sealant missing in places
- Rigid filler in a joint that should flex
- Failed seals between different materials
External mastic in East Dean, done properly
For buildings in East Dean, we reseal external joints of all kinds, from brick movement joints to cladding panels. Every joint gets the same careful preparation: clean joint faces and the right depth. We’re often asked to deal with sealant that has lost its bond to the brick or render and failed seals between different materials, across brickwork movement joints, façade panels and joints between brick and frames.
Older homes in small places like East Dean may be stone, brick or timber-framed, often with later extensions. Where one material meets another is where water generally gets in.
Big or small, it’s backed by our one-year guarantee.
- Place
- East Dean (BN20)
- Region
- East Sussex
- Cover
- A year, on every job
- Quotes
- A clear quote up front
- Telephone
- 0345 464 0079
- Last updated
- 26 October 2026
When to call us in East Dean
Many joints fail because they were sealed too deep or with nothing behind them. Sealant bonded to three sides has nowhere to go and rips as the joint opens.
If you can see any of these, it’s time to have the joints looked at:
- Movement joints with cracked, split or missing sealant
- Weeds or debris growing in open joints
- Old sealant gone brittle and cracked
- Failed sealant between panels on a façade
For an older house near a landmark such as The Parish Church of St Simon and St Jude, an extension built onto an older house moves differently, and the joint between them takes the strain.
What to look for in a quote
- How the joint is cleaned and prepared
- What guarantee comes with the work
- Which sealant they’ll use, and why
- How long to leave it before use
DIY versus a professional finish
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.
A DIY attempt does not rule out a professional job. We cut it out and start again.
Outside joints around East Dean
East Dean is within about 1 mile 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. The South East is one of the drier parts of the UK, though outdoor sealant still has to go onto a dry joint, so the forecast decides the day.
If you let a flat or house near Eastbourne station, outside joints that have cracked can let damp into a rental, so check them between lets.
East Dean is about 4 miles south-west of Eastbourne, in East Sussex. Wherever you are in the BN20 postcode area, we can carry out external mastic at your property. Our area takes in 289 places across East Sussex, large and small. We also work in Brighton, about 16 miles from East Dean.
All of BN20 is covered for external mastic. Whether your property is on Lower Street, Went Way and Gilberts Drive or anywhere close by, our applicators can take on the job. Other places close to East Dean include Friston (1 mile north-east), Birling Gap (1 mile south), Jevington (2 miles north), Meads (3 miles east) and Old Town (3 miles east). Within a short drive, we also cover Eastbourne (4 miles north-east), Bexhill-on-Sea (13 miles north-east), Seaford (4 miles west), Lewes (12 miles north-west), Hailsham (8 miles north) and Uckfield (15 miles north).
Landmarks near East Dean
Locally, jobs take us to homes and businesses close to The Tiger Inn, among other places. The closest station to East Dean is Eastbourne station, about 3.4 miles east of the centre. A little further out are Filching Manor And Motor Museum (3.3 miles north) and Eastbourne District General Hospital (3.3 miles north-east). For a walk, there’s Combe Hill.
Why act early in East Dean
A low-modulus sealant is chosen because it moves without pulling hard at the edges. That matters on brick, render and concrete, which can be weaker at the face. Too stiff a sealant can pull at the edges and break them. Older cottages and farmhouses around East Dean can have timber floors and frames, and water through a failed joint can rot timber if it’s left.
There are no prices on our website, because the cost depends so much on the job itself. Call for a quick quote and we’ll talk you through it.
Why us?
- Neat joints and a tidy finish
- We never seal over old sealant
- Anti-fungal silicone where joints get wet
- Approved under the ARBOMaster scheme
Take a look at our cost guide or what customers say.
Keeping the joints in good condition
Simple care keeps the joints in good condition. We recommend:
- Wash walls gently around the sealant
- Point out the joints to other trades
- Make sure movement joints are not pointed over
- Keep water from gutters off the wall
Keep pressure washers away from the sealant. A strong jet can damage the edges of the bead over time.
Act while the splits are small. Then it’s a straightforward cut-out and reseal with no damage behind it to deal with.
Landlords, agents and businesses in East Dean
Businesses can book us for washrooms, kitchens, offices and more. For commercial premises, we can talk through working times when we quote.
In hotels, rooms out of use cost money, so the work can be planned room by room around your bookings where we can. We have worked in hotels as well as homes and businesses.
What sealant work can’t fix
Honest advice matters more to us than a booking, so here’s what sealant can’t fix:
- Walls that need new movement joints cut into them
- Cracking across the wall rather than at a joint
- Structural movement, which needs a surveyor or engineer
If in doubt, call 0345 464 0079 or send us an email and we’ll say what we think.
Surfaces we seal
- Joints between brick and frames
- Render & cladding joints
- Façade panels
- Brickwork movement joints
- Copings & trims
- Concrete & block
How the visit works
All our tools and materials come with us in the van, so there’s nothing for you to buy. After a quick look at the joints together, we protect the area and start. It normally takes a few hours to a few days, depending on the length of joint and the access. In a small place like East Dean, access is normally the main thing to plan. If the job is outside, mention outbuildings, exposed walls and how to reach them.
- Each joint is checked and the colour of the new sealant agreed.
- 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.
How to prepare
- Mention any parking rules near the property
- For indoor joints, keep the area dry beforehand if you can
- Tell us about any previous sealing or DIY attempts
Ask for a quote
Need a quote? Please call 0345 464 0079 or drop us an email and tell us about the job. You’ll know what we plan to do, and what it will cost, before any work begins.
Related advice
Your questions about external mastic in East Dean
Can you help a landlord with a rental near Eastbourne station?
Yes, rental work is part of what we do. You can call 0345 464 0079 or send us an email with the address and a few details, and we will give you a fixed price before we start.
Will you come out to East Dean?
Yes, East Dean is covered. We work across London and the South East, from towns to the smallest places. The journey is planned ahead, so it helps to know about access.
When is the sealant fully cured?
Cure times vary by product and the conditions. Before we leave, we’ll tell you the cure time.
Why is there a gap in my brick wall?
Most straight vertical gaps in brickwork are movement joints. It gives the wall room to move and needs a flexible seal, not mortar.
Is there a guarantee?
Yes. Every job comes with a one-year guarantee.
Will you leave a mess?
Tidy work is part of the job. We protect what’s around the joints.
Do you use backing rod?
Closed-cell backing rod sets the depth of the sealant and stops it sticking to the back of the joint. That way it bonds to the two sides only and can stretch.
Can you reach joints on upper floors?
It depends on the building. Where joints can be reached safely, we’ll do them. Tell us about the building and we’ll confirm what access is needed.