East Sussex · England
External Mastic in Hankham
External mastic for Hankham and the surrounding area: careful preparation, the right product and tidy work. Call for a quick quote.
- Old sealant gone brittle and cracked
- Movement joints with cracked, split or missing sealant
- Panel joints letting water in
Hankham: your questions answered
Does living near the coast affect external mastic in Hankham?
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.
Is Hankham within the area you cover?
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 remove the old sealant?
Yes, always, and completely. New sealant will not bond properly to old, so any old material comes out before anything new goes in.
Can I do it myself?
Some simple jobs can be done by a careful DIYer. The usual mistakes are sealing over old sealant, sealing a damp joint and using too much.
How do I get a quote for external mastic in Hankham?
Every job is different, so each one gets its own quote. For a quick quote, call 0345 464 0079 or drop us an email and let us know what needs doing and where.
What’s an expansion joint in brickwork?
A vertical gap in a long brick wall is normally a movement joint. It gives the wall room to move, and it should be sealed with a flexible sealant.
Can you work on commercial sites?
Yes. We work in offices, washrooms, hotels and other commercial premises, as well as homes. We can talk about working times when we quote.
Are you ARBOMaster approved?
Yes. We’re approved under the ARBOMaster scheme, the approved applicator scheme for Arbo sealants.
External mastic in Hankham, done properly
Many failed façade joints only get noticed once there’s a stain or a damp patch inside. We inspect them, agree which need doing and reseal with a weatherproof, flexible sealant in a colour to suit. If you’re dealing with joints pointed up with cement by mistake and old sealant gone brittle and cracked, we can put it right, on render & cladding joints, concrete & block and brickwork movement joints alike.
Outside joints can only be sealed when they’re dry, so work in Hankham is booked around the forecast. Let us know about access to every wall, plus any garages or outbuildings.
Whatever the size of the job, you get the same 12-month guarantee.
- Location
- Hankham (BN24)
- Wider area
- East Sussex
- Guarantee
- One year on every job
- Quotes
- A clear price before work begins
- Telephone
- 0345 464 0079
- Page updated
- 26 October 2026
What happens on the day
We bring everything the job needs with us, so you don’t need to buy or prepare anything. Once we’ve agreed what’s being done, we protect the area and start. Most jobs take a few hours for a handful of joints, longer for a whole elevation. For a village or hamlet like Hankham, the journey is planned in advance: let us know about lanes, gates and parking. Everything for the job comes with us, so a second trip is avoided where possible.
- Each joint is checked and the colour of the new sealant agreed.
- We take out the old sealant until the faces are sound.
- Closed-cell backing rod is pushed in so the sealant bonds to two sides only.
- We prime the faces where required.
- A low-modulus exterior sealant is gunned in and tooled to a neat finish.
How to prepare
- Clear the area around the work
- Keep pets and children clear of the area while we work
- For business premises, tell us about site rules or sign-in
Get a quote
It all starts with a short chat. Tell us what’s wrong, where it is and how much there is, and we’ll explain how we’d tackle it. Whenever you’re ready, call 0345 464 0079 or send us an email.
Advice
Quotes for external mastic in Hankham
Your quote is based on your job. We look at:
- How much old sealant there is and how hard it is to remove
- The product the joint needs
- The number and length of the joints
- Any working-time requirements on site
Commercial jobs are quoted on the same basis as homes: the amount of work, the access and the products needed. Ask us for a quote and we’ll go through it with you.
What we need to know
When you call or email, it’s useful to know:
- What the problem is, such as mould, gaps, leaks or cracking
- Where the job is, and your postcode
- Photos by email, if that is easy
- If it’s domestic, commercial or a hotel
For a quick quote, get us on the phone, or email us if that is easier. Tell us about the joints that need doing and we will explain what’s involved.
Places near Hankham
What else we do in Hankham
Walls and rooflines in Hankham
Hankham is close to the coast, and homes near the sea take more wind-driven rain, with salt in the air closer to the shore. That’s hard on movement joints and outside wall joints, especially on the side facing the sea. 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.
Rented homes near Pevensey & Westham station change hands often, and failed wall and movement joints let damp in, so they’re worth checking between tenancies. Homes close to St Luke's Church include some older properties, and an extension built onto an older house moves differently, and the joint between them takes the strain.
Hankham is about 3 miles north of Eastbourne, in East Sussex. Whether you’re in the middle of Hankham or further out, external mastic is available for homes and businesses alike, from flats and houses to offices and hotels. Hankham is one of 289 places in East Sussex where we work. There’s also a page for Brighton, roughly 19 miles from Hankham.
Our applicators cover all of the BN24 postcode area for external mastic. If you need external mastic at a property on Hankham Road, Milton Street and Foords Lane or a nearby road, our applicators can take on the job. Other places close to Hankham include Blackness (1 mile south-west), Stone Cross (1 mile south), Polegate (2 miles west), Lower Willingdon (2 miles south-west) and Willingdon (2 miles south-west). Further out, we also cover Eastbourne (3 miles south), Hastings (12 miles east), Bexhill-on-Sea (8 miles east), Seaford (9 miles west), Lewes (13 miles west) and Hailsham (3 miles north-west).
Local landmarks in Hankham
Locally, jobs take us to homes and businesses close to The Red Lion pub and Causeway School, among other places. For rail, the closest station is Pevensey & Westham station, roughly 1.4 miles south-east. Well-known places in the area include Eastbourne District General Hospital (2.9 miles south-west) and Pevensey Castle (1.7 miles east). Green spaces nearby include Combe Hill.
Do you need external mastic in Hankham?
Using the wrong sealant is another common reason. A high-modulus or general-purpose sealant can be too rigid for a busy joint, so it pulls away from the edges.
Keep an eye out for any of the following:
- Water getting into walls through failed joints
- Weathered mastic that no longer stretches
- Failed seals between different materials
- Weeds or debris growing in open joints
Schools such as Hankham Primary School are buildings too, and movement joints, cladding joints and gutters on larger buildings need the same care as a house’s.
Comparing quotes
- What product goes in the joint
- How the surfaces are prepared before sealing
- Whether all the old sealant comes out first
- The length of the guarantee
What the job involves on each surface
Cladding and façade panels
If the façade has a specified sealant, that’s what we use. Send us any details you have about the façade.
Render joints
Water behind render can lead to blown patches. A sound joint keeps the render dry behind.
Can I do it myself?
Sealing over old silicone is the commonest DIY error. New silicone will not bond to old, so it lifts and traps water and mould underneath. All the old material has to come out first.
Some jobs are best left to a professional: work at height, external movement joints, fire-rated sealant and large areas need the right product, the right access and the right method.
Honest limits
New sealant can’t fix everything, and we’d rather say so up front. It won’t solve:
- Cracked brickwork or render that needs a builder or plasterer
- Adding movement joints to masonry that has none
- Rising or penetrating damp from elsewhere in the wall
If in doubt, call 0345 464 0079 or drop us an email and we’ll say what we think before booking.
What we seal
- Copings & trims
- Concrete & block
- Render & cladding joints
- Façade panels
- Brickwork movement joints
- Joints between brick and frames
For landlords and businesses
Failed sealant is one of the commonest items on a check-out report, and it’s easy to sort out between tenants. Several properties can be quoted together.
Housing providers, facilities teams and property managers book us too in Hankham and across East Sussex. Several sites can be quoted together, and we are fully insured.