East Sussex · England
External & façade joints in Southover, East Sussex
Our applicators work in Southover on sealing brickwork movement joints, render, cladding and façade joints. Old material cut out, joints cleaned and sealed neatly.
- Water getting into walls through failed joints
- Gaps where render, brick and frames meet
- Plants rooting in failed movement joints
About our external mastic in Southover
Joints in render and cladding are easy to overlook until a damp patch appears. We look over the joints, agree the ones to renew and reseal with a flexible, weatherproof product in a matching colour. We are often asked to deal with rain getting behind render or cladding at a joint and hard, crazed mastic that has stopped moving, on brickwork movement joints, render & cladding joints and joints between brick and frames.
Around Southover, garages, outbuildings and extensions all add to the joints on the outside of a home. Leaks usually start at a gutter end, a garage door frame or where an extension meets the house.
Big or small, you get the same 12-month guarantee in Southover and across East Sussex.
- Where
- Southover (BN7, BN8)
- Wider area
- East Sussex
- Cover
- One year on every job
- Quote
- A clear quote up front
- Telephone
- 0345 464 0079
- Updated
- 26 October 2026
Different surfaces, different methods
Joints between dissimilar materials
Joints where frames, sills or panels meet the wall are common leak points. We cut out the old sealant and reseal with a product suited to both surfaces.
Concrete and blockwork
Concrete and block walls shrink as they dry and move with temperature. We reseal their joints with backing rod and a flexible product.
Should I try it myself first?
Too much sealant is as bad as too little. A thick, smeared bead looks untidy and does not move well, and getting the depth right matters as much as the look.
Some jobs are best left to a professional: high-level joints, fire-rated gaps, external movement joints and big jobs call for the right materials, safe access and experience.
What happens if it’s left?
A failed movement joint lets water into the wall, behind render and cladding. Dealing with it early keeps the repair to the joint, rather than the wall around it. Around Southover, water from a failed joint in an older home can soak into timber and plaster, and that’s a much bigger job than renewing the sealant.
Doing several joints on one visit usually makes better use of the time than several visits, so tell us about everything that needs sealing. You’ll get one clear quote for the whole job.
Why us?
- We never seal over old sealant
- 12-month guarantee on every job
- Fully insured
- Over 20 years’ experience
Take a look at our cost guide and what customers say.
For landlords and businesses
We regularly work with letting and managing agents. Send the address, what’s needed and the access arrangements.
From a single let to a portfolio, you get the same standard of work: the old material taken out, careful preparation and a 12-month guarantee.
Southover questions
Can you do external mastic in Southover?
Yes, Southover is within the area we cover. Our work covers London and the South East. Just phone 0345 464 0079 or email us with a few details of the job.
Will you come out to Southover?
Yes. Southover is within the area we cover, which takes in towns, villages and rural addresses. Our work covers London and the South East. Just mention lanes, gates or anything else about the route when you book.
Do you guarantee your work?
Yes. All our work carries our one-year guarantee.
Do you seal joints where cladding meets other materials?
Yes. We cut out the old sealant, prepare both faces and reseal with a flexible exterior product. We pick a colour that works with both materials.
Do you hold any approvals?
Yes. ARBOMaster is the approved applicator scheme for Arbo sealants, and we’re part of it.
Will the old sealant be removed?
Yes. All of the old material is cut out and the joint cleaned before applying anything new.
I rent my home. Can I book you?
Yes, but check with your landlord or agent first. Many landlords are glad to have it sorted.
How long before the joint can be used?
That depends on the sealant used, so please follow the time we give you.
Southover buildings and the weather
Historic houses like Anne of Cleves House (about 0.2 miles south-west) are a reminder that the area around Southover has older buildings as well as new. In older buildings, 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, yet outdoor joints still have to be sealed dry, so jobs are booked with the weather in mind.
If you live in an older home near Church of St Michael, old and new materials meet at the roofline and walls, which is where sealant earns its keep. Rented homes near Lewes station change hands often, and failed wall and movement joints let damp in, so they’re worth checking between tenancies. If you look after a building such as Western Road Community Primary School, its movement joints, gutters and trims need looking after like any other building’s.
Southover is about 1 mile south-east of Lewes, in East Sussex. From the centre of Southover to the outskirts, external mastic is available for homes and businesses alike, from flats and houses to offices and hotels. Southover is one of 289 places in East Sussex where we work for external mastic. You can also see our page for Brighton, roughly 7 miles from Southover.
Postcode districts we cover here for external mastic: BN7 and BN8. That includes homes and businesses on Ham Lane, New Road and Bell Lane. Main roads around Southover include the A277 and A2029. Neighbouring places we cover for external mastic include Cliffe (1 mile north-east), Lewes (1 mile north-west), South Malling (1 mile north), Iford (2 miles south-west) and Offham (2 miles north-west). Within a short drive, we also cover Eastbourne (13 miles south-east), Seaford (8 miles south-east), Hailsham (11 miles east), Crowborough (14 miles north-east), Uckfield (8 miles north-east) and Newhaven (6 miles south).
What’s near Southover
Typical jobs here are in homes near Kings Head pub, Priory School and Railway Land. There’s a railway station in Southover itself: Lewes station. Well-known places in the area include Lewes Castle (within half a mile north-west) and Museum of Agricultural Bygones (3.9 miles north-east). Green spaces nearby include Cliffe Hill and Southerham Farm.
Towns and villages near Southover
More services for Southover
How we quote for external mastic
Jobs vary more than people expect. What affects the quote:
- Working hours on commercial sites
- The number and length of the joints
- Mould in or behind the old joints
- How many areas need sealing
What you pay reflects the work, not a rough estimate. That is why we ask about the job first and agree the price before starting.
What we need to know
When you call or email, these details help:
- Roughly how big the job is
- Whether it’s a home or a business
- Any access issues, like height or stairs
- A few pictures by email, if you can
Want a quote for external mastic? Please phone 0345 464 0079 or drop us an email and tell us about the job. You will know what we plan to do, and what it will cost, before any work begins.
The process
All our tools and materials come with us in the van. After a quick look at the joints together, the area is protected and the work begins. It normally takes a few hours for a handful of joints, longer for a whole elevation. In a smaller place like Southover, parking is seldom the issue; lanes, gates and long drives are worth mentioning. For outside work, side access and the height of the joints help us plan.
- 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.
Getting ready for the visit
- Let us know about earlier repairs to the joints
- Mention any sign-in or site rules at work premises
- Tell us about any water getting in
Get a quote
There’s no standard price list. Instead, your job gets its own clear quote. To arrange one, ring 0345 464 0079 or send us an email.
Related advice
What sealant work can’t fix
To be straight with you, there are a few things sealant won’t fix:
- Structural movement, which needs a surveyor or engineer
- Loose or hollow render, which needs re-rendering
- Damp that is not coming from the joint
If you are not sure, just ring 0345 464 0079 or drop us an email and we will give you a straight answer before you book.
Joints and surfaces we work on
- Concrete & block
- Render & cladding joints
- Brickwork movement joints
- Joints between brick and frames
- Façade panels
- Copings & trims