East Sussex · England
Telscombe External Mastic
Professional external mastic in and around Telscombe, with every bit of old sealant taken out first and a 12-month guarantee.
- Leaking joints around cladding and façade panels
- Cracked joints where brick meets render or frames
- Rain getting behind render or cladding at a joint
When to call us in Telscombe
Some movement joints have been pointed up with mortar by mistake. With the joint locked solid, the movement turns into cracks elsewhere in the wall.
Keep an eye out for these signs:
- Cracked joints where brick meets render or frames
- Moss and dirt in joints with no sealant left
- Leaking joints around cladding and façade panels
- Weathered mastic that no longer stretches
Letting a property close to Southease station? Then split movement joints are easy to miss on a rental until damp shows inside.
Before you book anyone
- The length of the guarantee
- Which sealant they’ll use, and why
- Whether they’re fully insured
- Whether all the old sealant comes out first
External mastic in Telscombe
Getting the depth right is half the job. Closed-cell backing rod sets the depth and stops the sealant sticking to the back, leaving it bonded to two faces so it can move with the wall. Common call-outs are for joints with sealant missing in places and cracked joints where brick meets render or frames, across joints between brick and frames, brickwork movement joints and façade panels.
Houses in smaller places like Telscombe can stand more in the open than those in a built-up town, and walls and rooflines facing the weather take the worst of it. Joints on those sides are generally the first to go.
Every job comes with our 12-month guarantee.
- Where
- Telscombe (BN10, BN2, BN7)
- Wider area
- East Sussex
- Cover
- One year on every job
- Price
- A clear price before we start
- Telephone
- 0345 464 0079
- Page updated
- 26 October 2026
Can I do it myself?
If you do try it yourself, take your time over the preparation: remove every trace of old sealant, clean and dry the joint, and follow the product’s cure time. If it fails, we can still redo it.
What a professional job adds is preparation and the right product. Joints are cleaned back to sound surfaces and dried, and the sealant is matched to the joint and its conditions, then guaranteed for a year.
Telscombe questions
Does living near the coast affect external mastic in Telscombe?
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.
Will you come out to Telscombe?
Yes, we do. Our work covers London and the South East, and smaller places are part of that. Longer journeys are simply planned in advance.
What do you put in the joint?
Each joint gets the product that suits it. Where it moves, gets wet or faces the weather makes a difference, and we’ll explain our choice.
Do you use backing rod?
Backing rod controls the sealant depth and keeps it off the back of the joint. That way it bonds to the two sides only and can stretch.
What colours does the sealant come in?
We aim for a joint that suits the wall rather than one that jumps out. Colour is agreed with you before we begin, matched as closely as the range allows.
Do I have to be there?
For indoor joints, yes, someone needs to let us in. After that, you can carry on with your day.
Can I do it myself?
You can, for simple jobs. Preparation is everything: all the old sealant out, and a clean, dry joint. We can always put it right if it fails.
Can you work on commercial sites?
Yes, regularly. We can plan bigger jobs in stages to suit the site.
When something else is needed
To be straight with you, some problems need a different trade:
- Adding movement joints to masonry that has none
- Cracks in the bricks or render themselves, away from the joints
- Damp that is not coming from the joint
Not sure which it is? You can ring 0345 464 0079 or email us and we’ll tell you honestly before you book.
Joints and surfaces we work on
- Brickwork movement joints
- Copings & trims
- Render & cladding joints
- Façade panels
- Concrete & block
- Joints between brick and frames
Places near Telscombe
Also in Telscombe
For landlords and businesses
For anyone letting property in or around Telscombe, several properties can be quoted together. Just tell us the addresses and what each one needs, and pictures by email help.
Hotels need rooms back in use, so the work can be planned room by room around your bookings where we can. Hotel work is part of what we do, alongside homes and businesses.
Walls and rooflines in Telscombe
Telscombe 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. That’s hard on movement joints and outside wall joints, especially on the side facing the sea. Historic houses like Monk's House (about 2.7 miles north-east) are a reminder that the area around Telscombe 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.
Schools such as Telscombe Cliffs Community Primary School are buildings too, and its movement joints, gutters and trims need looking after like any other building’s. If you live in an older home near The Parish Church of St Lawrence, old and new materials meet at the roofline and walls, which is where sealant earns its keep.
Telscombe is about 6 miles east of Brighton, in East Sussex. If you need external mastic in Telscombe, please call 0345 464 0079 or email us for a quick quote. We cover East Sussex from our Crawley base, Telscombe included. 289 places in East Sussex are on our list. Our Brighton page covers work nearby, about 6 miles away.
All of BN10, BN2 and BN7 is covered for external mastic, from the main roads to the quietest streets. If you need external mastic at a property on Tor Road, View Road and Firle Road or anywhere close by, our applicators can take on the job. If you are just outside Telscombe, we cover East Saltdean (1 mile west), Saltdean (1 mile west), Piddinghoe (2 miles east), Rodmell (2 miles north-east) and Rottingdean (3 miles west). Larger places within reach include Eastbourne (13 miles east), Seaford (6 miles east), Lewes (5 miles north), Hailsham (12 miles east), Uckfield (12 miles north-east) and Newhaven (3 miles east).
Around Telscombe
In Telscombe, that means homes and buildings near Peacehaven Community School and Smugglers Rest pub. For rail, the closest station is Southease station, about 2.6 miles north-east. Other landmarks nearby include Planet Earth Museum (2.8 miles east) and Lewes Castle (4.9 miles north). Not far away are Itford Hill and Beacon Hill Local Nature Reserve.
Aftercare tips
So the new joints stay in good condition:
- Show decorators and builders where the movement joints are
- Act on the first splits you see
- Check the sealant is paintable before painting near it
- Look over the joints every year, ideally after winter
If you have more work done on the wall, such as new render, cladding or an opening, show the contractor the movement joints. They should be kept open and resealed, not filled.
An open movement joint lets rain into the wall every time it pours. That can lead to damp patches, staining and frost damage which cost more to put right than the joint.
What we do, step by step
The work is kept neat and contained to the area we are working on, so you can get on with your day. Expect the work to take anything from a few hours to several days, depending on the building. In a smaller place like Telscombe, 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.
- We inspect the joints and agree which need resealing and how they’ll be reached.
- We cut out the failed sealant and rake out any dirt or growth.
- The joint faces are cleaned and primed where the sealant needs it.
- Backing rod goes in next, setting the depth and keeping the sealant off the back of the joint.
- The new sealant, chosen to suit the brick or render, is applied and tooled to a neat finish.
How to prepare
- Where the joints are inside, avoid wetting them before we arrive
- Move anything stored near the joints
- On commercial sites, let us know about site rules
Getting a quote
For external mastic in Telscombe, phone 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.
Read more
Surface by surface
Concrete and blockwork
Big joints in concrete need careful depth control. Backing rod sized to the joint sets it so the sealant isn’t too deep.
Cladding and façade panels
Panels heat up and cool down quickly, so the joints work hard every day. The sealant is chosen with that in mind.