East Sussex · England
External Mastic in Lunsford's Cross
Our applicators work in Lunsford's Cross on sealing brickwork movement joints, render, cladding and façade joints. Old material cut out, joints cleaned and sealed neatly and a one-year guarantee.
- Gaps where render, brick and frames meet
- Joints with sealant missing in places
- Joints where the bead has come unstuck
Quotes for external mastic in Lunsford's Cross
Some jobs are bigger than they look, and some smaller. What affects the quote:
- Access and height
- Any working-time requirements on site
- The number and length of the joints
- The type of sealant required
Homes and businesses are quoted the same way: how much there is to do, how we reach it and what it needs, plus any working-time requirements on site. Call for a quick quote and we’ll explain what it covers.
What to tell us for a quote
You don’t need to know the technical terms. It helps if you can tell us:
- Roughly how big the job is
- What’s wrong with the joints now
- Where the job is, and your postcode
- Whether it has been sealed before
We do not publish a price list. Instead, we give you a clear price for your job. To arrange one, ring 0345 464 0079 or send us an email.
External mastic for homes and businesses in Lunsford's Cross
On houses, flats and commercial buildings across Lunsford's Cross, we reseal joints in brickwork, render, cladding and façade panels. The preparation is the same whatever the wall: clean, sound faces and a controlled depth. We work on joints between brick and frames, render & cladding joints and concrete & block, and people most often call us about joints where the bead has come unstuck and rain getting behind render or cladding at a joint.
Around Lunsford's Cross, older buildings can be stone, brick or timber-framed, many with extensions added later. The joints where those materials meet are the weak points, and they need the right sealant at the right depth.
Our work is backed for twelve months, and the guarantee is the same wherever you are.
- Location
- Lunsford's Cross (TN39)
- Region
- East Sussex
- Cover
- One year on every job
- Quote
- A clear price before work begins
- Call
- 0345 464 0079
- Last updated
- 26 October 2026
Should I try it myself first?
The difference is mostly in the preparation and the product. Joints are cleaned back to sound surfaces and dried, and the sealant is chosen for how the joint moves and where it is.
Some jobs are best left to a professional: work at height, external movement joints, fire-rated sealant and large areas call for the right materials, safe access and experience.
Also near Lunsford's Cross
What else we do in Lunsford's Cross
Common problems we fix in Lunsford's Cross
Sometimes a movement joint was filled with mortar or a rigid filler by mistake. The joint can’t move, so the wall cracks somewhere else instead.
The most common problems we see are:
- Damp patches traced to an open external joint
- Movement joints filled with mortar instead of sealant
- Moss and dirt in joints with no sealant left
- Weathered mastic that no longer stretches
Schools such as Ninfield Church of England Primary School are buildings too, and larger buildings have long runs of movement joint that eventually need resealing.
Questions to ask before you book
- Whether the sealant suits the joint
- What preparation is included
- Whether VAT is included
- Which colour the sealant will be
Why it’s worth doing now in Lunsford's Cross
Mortar or ordinary filler might look like a quick way to close an open joint, but it locks the joint solid. The wall then cracks somewhere else. A flexible sealant over backing rod is what the joint needs. Where a wall is exposed, as many are in small places like Lunsford's Cross, wind-driven rain gets into any failed joint, and older walls, once damp, take a long time to dry.
Leaving a failed joint usually makes the job bigger, not smaller, as water and mould keep getting in. If you’re unsure, call 0345 464 0079 or email us and we will give you an honest view and a quote.
Why book with us
- Old sealant always removed completely
- Experience in homes, commercial sites and hotels
- Full insurance on every job
- Colour picked to suit the job
What happens on the day
We bring everything the job needs with us. After a quick look at the joints together, the area is protected and the work begins. It normally takes anything from a few hours to several days, depending on the building. Somewhere like Lunsford's Cross needs a little journey planning: tell us about narrow lanes, gates, long drives and where we can park. Everything for the job comes with us, so a second trip is avoided where possible.
- We look at every joint and agree a colour to suit the wall.
- We take out the old sealant until the faces are sound.
- Backing rod goes in so the sealant can stretch between the two faces.
- We prime the faces where required.
- A low-modulus exterior sealant is gunned in and tooled to a neat finish.
How to prepare
- Keep children and pets away from the work area
- Let us know about parking restrictions
- Clear the area around the work
Ask for a quote
Want a quote for external mastic? Please phone 0345 464 0079 or send us an email with a few details. You’ll know what we plan to do, and what it will cost, before any work begins.
Related advice
Questions from Lunsford's Cross
Does living near the coast affect external mastic in Lunsford's Cross?
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 Lunsford's Cross within the area you cover?
Yes. Lunsford's Cross is within the area we cover, which takes in towns, villages and rural addresses. Our work covers London and the South East. Let us know about access, parking and anything unusual about getting there when you book.
Will you leave a mess?
Tidy work is part of the job. Nearby surfaces are protected.
How often do external joints need resealing?
It depends on the exposure, the movement and the product. Treat it as a maintenance item and look at it yearly.
Will there be a smell?
Possibly a little. It fades as the sealant cures, and ventilation helps.
Can I add another job to the visit?
Yes. Just list everything you need and you’ll get one quote.
Are you an approved applicator?
Yes. We are an ARBOMaster approved applicator, the approved applicator scheme for Arbo sealants.
Do you work for hotels and businesses?
Yes. We can plan bigger jobs in stages to suit the site.
Honest limits
In fairness, some problems need a different trade:
- Damp from another source, such as a leaking gutter or a bridged damp-proof course
- Render that’s blown, hollow or coming away
- Cracking across the wall rather than at a joint
If in doubt, call 0345 464 0079 or drop us an email and we’ll say what we think before you book.
Joints and surfaces we work on
- Façade panels
- Concrete & block
- Render & cladding joints
- Brickwork movement joints
- Copings & trims
- Joints between brick and frames
How to look after the new joints
Good habits help new joints last longer. A few tips:
- Tell anyone working on the walls about the movement joints
- Act on the first splits you see
- Keep movement joints as flexible joints, not mortar
- Walk round the building once a year and look at the joints
If you have more work done on the wall, such as new render, cladding or an opening, show the contractor the movement joints. They must stay as flexible joints, never rendered or pointed over.
Leaks behind façade panels and render often go unseen. When it finally shows inside, the joint may have been open for years.
What external mastic looks like in Lunsford's Cross
Lunsford's Cross 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. London and the South East are among 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 Collington station, failed wall and movement joints let damp in, so they’re worth checking between tenancies.
Lunsford's Cross is about 2 miles north-west of Bexhill-on-Sea, in East Sussex. Jobs in Lunsford's Cross get the same care as everywhere else we work: the old material taken out, joints prepared properly and a 12-month guarantee. 289 places in East Sussex are on our list, from the larger towns to small villages. You can also see our page for Brighton, about 25 miles away.
Jobs for external mastic in TN39 is quoted and booked the same way as anywhere else. Being close to the A269, Lunsford's Cross is easy for our applicators to reach. Close by, we work in Watermill (1 mile east), Russell's Green (1 mile west), Hooe Common (1 mile west), Ninfield (1 mile north-west) and Sidley (2 miles south-east). Further out, we also cover Eastbourne (9 miles south-west), Hastings (5 miles east), Hailsham (8 miles west), St Leonards (5 miles east), Polegate (9 miles west) and Hastings Old Town (7 miles east).
Around Lunsford's Cross
In Lunsford's Cross, that means homes and buildings near Highwoods and Bexhill High Academy, among other places. For rail, the closest station is Collington station, about 2.3 miles south. Well-known places in the area include Bexhill Hospital (2.1 miles south-east) and Herstmonceux Castle (4.4 miles west). Green spaces nearby include Gillham Wood and Senlac Hill.