East Sussex · England
External & façade joints in Udimore, East Sussex
We cover Udimore for sealing brickwork movement joints, render, cladding and façade joints. Old sealant removed completely, joints prepared properly and every job guaranteed for a year.
- Joints pointed up with cement by mistake
- Sealant pulling away from one side of the joint
- Water getting into walls through failed joints
What we can’t put right
To be straight with you, some problems need a different trade:
- Damp that isn’t coming from the joint
- Movement that’s more than a sealant joint can take
- Cracked brickwork or render that needs a builder or plasterer
Not sure which it is? You can ring 0345 464 0079 or drop us an email and we will tell you honestly.
Joints and surfaces we work on
- Façade panels
- Joints between brick and frames
- Concrete & block
- Copings & trims
- Render & cladding joints
- Brickwork movement joints
About our external mastic in Udimore
We’re ARBOMaster approved applicators, and each external joint gets a sealant suited to it. Porous or awkward surfaces are primed where the sealant needs it and we use one wherever it does. We are often asked to deal with failed seals between different materials and damp patches traced to an open external joint, on concrete & block, façade panels and copings & trims.
Around Udimore, older buildings can be stone, brick or timber-framed, many with extensions added later. Where one material meets another is where water generally gets in, and they need the right sealant at the right depth.
We stand behind the work with a 12-month guarantee, so you are covered after we have gone.
- Where
- Udimore (TN31)
- Region
- East Sussex
- Cover
- One year on every job
- Quote
- Quoted before any work starts
- Call
- 0345 464 0079
- Page updated
- 26 October 2026
Signs you need external mastic in Udimore
The wrong product in a moving joint is a classic cause. A high-modulus or general-purpose sealant can be too rigid for a busy joint, and it tears off the sides.
Common reasons people contact us include:
- Weeds or debris growing in open joints
- Leaking joints around cladding and façade panels
- Water getting into walls through failed joints
- Rigid filler in a joint that should flex
For landlords with property near Winchelsea station, outside joints that have cracked can let damp into a rental, so check them between lets.
Comparing quotes
- How long the guarantee is
- Whether they’re fully insured
- Whether all the old sealant comes out first
- How the joint is cleaned and prepared
Can I do it myself?
A DIY attempt does not rule out a professional job. We cut it out and start again, so tell us about it when you ask for a quote.
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 does not work out, we can still put it right.
Landlords, agents and businesses in Udimore
We work for landlords and agents as well as homeowners. Sealant work between tenants is a simple way to keep a property in good order before the next move-in.
Hotels need rooms back in use, so the work can be planned room by room. We’ve worked in hotels as well as homes and businesses.
Walls and rooflines in Udimore
With historic houses such as Lamb House (about 3.4 miles east) nearby, there’s older building stock in the area around Udimore as well as newer homes. In older buildings, older walls and rooflines need a sealant that moves with them and suits the material. London and the South East are among the drier parts of the UK, yet outdoor joints still have to be sealed dry, so jobs are booked with the weather in mind.
For an older house near a landmark such as The Parish Church of St Mary, old and new materials meet at the roofline and walls, which is where sealant earns its keep.
Udimore is about 6 miles north-east of Hastings, in East Sussex. Whether you’re in the middle of Udimore or further out, we cover external mastic for every kind of property. Udimore is one of 289 towns and villages in East Sussex we cover. Brighton is on our list too, around 35 miles away.
Our applicators cover all of TN31 for external mastic. We cover properties on Udimore Road and Float Lane. If you’re just outside Udimore, we cover Cock Marling (1 mile east), Broadland Row (1 mile west), Broad Street (1 mile south), Icklesham (2 miles south) and Beckley Furnace (2 miles north-west). Further out, we also cover Hastings (6 miles south-west), Bexhill-on-Sea (10 miles south-west), St Leonards (7 miles south-west), Hastings Old Town (6 miles south-west), Belmont (6 miles south-west) and Hollington (7 miles south-west).
Around Udimore
Udimore’s nearest station is Winchelsea station, roughly 2.1 miles east of the centre. A little further out are Winchelsea Court Hall Museum (2.5 miles south-east) and Conquest Hospital (5.4 miles south-west). For a walk, there’s Flatropers Wood.
Towns and villages near Udimore
What else we do in Udimore
Your questions about external mastic in Udimore
I let a flat near Winchelsea station. Can you help?
Yes, rental work is part of what we do. You can ring 0345 464 0079 or send us an email with the address and a few details, and we’ll give you a fixed price before we start.
Is Udimore in your area for external mastic?
Yes. We work across London and the South East, and Udimore is part of that. Just call 0345 464 0079 or drop us an email with a few details of the job.
Why do you put foam in the joint first?
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.
Are you insured?
Yes. We are fully insured for every job we do.
Do you work at height?
That depends on the building and the joints. Where joints can be reached safely, we will do them. Tell us about the building and we will confirm what access is needed.
Is it OK to seal over old sealant?
No. The old sealant always comes out first, so the new joint bonds to clean surfaces.
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. The colour is chosen to suit.
Are you an approved applicator?
Yes. ARBOMaster is the approved applicator scheme for Arbo sealants, and we’re part of it.
What the job involves on each surface
Joints between dissimilar materials
Wherever two materials meet, they move differently. We seal the joint with a flexible exterior sealant so the movement is taken up.
Render joints
Cracks along render joints let water in behind the coat. Resealing the joints early keeps water out and helps it last.
What happens if it’s left?
Resealing a run of joints in one go is usually better than patching one at a time. Joints of the same age tend to fail together, and access only has to be arranged once. Older cottages and farmhouses around Udimore can have timber floors and frames, where water from a failed joint can cause rot if it’s left.
Every job is a little different, so each one gets its own quote. The number of joints, how easy they are to reach and the sealant needed all make a difference, and we’ll explain the quote if you ask.
Why choose Mr Mastic in Udimore
- Colour agreed with you before work begins
- Over 20 years’ experience
- Tidy, careful work
- Experience in homes, commercial sites and hotels
How the visit works
Once we are on site, we compare the joints with what we discussed. If anything is different, we explain it before carrying on. Most jobs then take anything from a few hours to several days, depending on the building. Somewhere like Udimore needs a little journey planning: let us know about lanes, gates and parking. Everything for the job comes with us, so a second trip is avoided where possible.
- We start by walking round the building and agreeing the joints and the access.
- We cut out the old mastic and rake out anything in the joint.
- Joint faces are cleaned back and primed if the sealant needs it.
- Backing rod sized to the joint goes in to set the depth.
- The exterior sealant is applied, tooled and checked along its length.
How to prepare
- For indoor joints, keep the area dry beforehand if you can
- Keep children and pets away from the work area
- Mention if the joints have been sealed before
Getting a quote
For a quick quote, get us on the phone, or send an email if you’d rather. Tell us about the joints that need doing and we will talk you through the work and give you a clear quote.