West Sussex · England
Almodington External Mastic
Sealing brickwork movement joints, render, cladding and façade joints for homes and businesses in Almodington and across West Sussex. ARBOMaster approved applicators, fully insured, with a 12-month guarantee.
- Weathered mastic that no longer stretches
- Brick movement joints where the sealant has split
- Joints where the bead has come unstuck
What external mastic looks like in Almodington
Almodington is close to the coast, where wind-driven rain is a fact of life and, nearer the shore, so is salt air. Both are hard on movement joints and outside wall joints, which can dry out and crack sooner where a building faces the weather. 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.
For site and facilities teams at buildings such as Birdham CE Primary School, larger buildings have long runs of movement joint that eventually need resealing. In the older streets around Earnley Church, an extension built onto an older house moves differently, and the joint between them takes the strain.
Almodington is about 4 miles north-west of Selsey, in West Sussex. Whether you are in the middle of Almodington or further out, external mastic is available for homes and businesses alike, from flats and houses to offices and hotels. Almodington is one of 371 towns and villages in West Sussex we cover. You can also see our page for Portsmouth, roughly 11 miles from Almodington.
All of PO20 is within our area for external mastic. Whether your property is on Second Avenue, Batchmere Road and Third Avenue or a nearby road, we can help. If you’re just outside Almodington, we cover Somerley (1 mile north-west), Earnley (1 mile south-west), Birdham (1 mile north), Highleigh (1 mile east) and Shipton Green (2 miles north-west). Further out, we also cover Bognor Regis (6 miles east), Chichester (5 miles north-east), Selsey (4 miles south-east), Littlehampton (13 miles east), Emsworth (7 miles north-west) and Rustington (14 miles east).
Local landmarks in Almodington
For rail, the closest station is Chichester station, roughly 4.2 miles north-east of the centre. Nearby you will also find Chichester Castle (4.9 miles north-east) and St Richard's Hospital (5.2 miles north-east). Not far away are Pilsey Island.
How we handle external mastic in Almodington
A movement joint is a deliberate break that lets a wall expand and contract. Its sealant has to flex with the building, season after season, so once it splits or hardens, the joint stops working and water gets in. We work on render & cladding joints, brickwork movement joints and copings & trims, and common reasons people get in touch are weeds or debris growing in open joints and rain getting behind render or cladding at a joint.
In a village or hamlet like Almodington, older cottages and farm buildings often stand in the open, where walls and rooflines take the weather head on. Joints on those walls need a sealant that moves with the building and stays in place.
Each job carries a 12-month guarantee, large or small.
- Place
- Almodington (PO20)
- Region
- West Sussex
- Cover
- 12 months on all our work
- Quote
- Quoted before any work starts
- Call
- 0345 464 0079
- Page updated
- 26 October 2026
Aftercare tips
Joint life depends on how it’s used and looked after. We suggest:
- Keep soil, plants and ivy away from the joints
- Ask before painting over external sealant
- Fix overflowing gutters above sealed joints
- Check external joints each spring
Look over the joints once a year, ideally after winter. Splits, gaps at the edges or plants in the joint are early warning signs.
Act while the splits are small. At that stage it’s a simple cut out and reseal before water has had years to get in.
What we do, step by step
Good joint work is mostly preparation, so that’s where we spend the time. Every joint is cleaned and dried before new material goes in. All told, the work takes a few hours for a handful of joints, longer for a whole elevation. Somewhere like Almodington needs a little journey planning: let us know about lanes, gates and parking. We bring what the job needs, so it can be finished in one trip where possible.
- We start by checking each joint, agreeing the ones to redo and how we will reach them.
- Old sealant and any debris are cut and raked out.
- 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.
- We gun in a flexible exterior sealant in a colour that suits the wall and tool it neatly.
Getting ready for the visit
- Mention any parking rules near the property
- Let us know about stairs, lifts or work at height
- Mention any sign-in or site rules at work premises
Get a quote
Call for a quick quote, or send an email if you’d rather. Describe what needs sealing and we’ll talk you through the work before giving you a price.
Advice
When to call us in Almodington
Sometimes a movement joint was filled with mortar or a rigid filler by mistake. With the joint locked solid, the movement turns into cracks elsewhere in the wall.
Any of these means the joints need attention:
- Weeds or debris growing in open joints
- Panel joints letting water in
- Movement joints with cracked, split or missing sealant
- Sealant that has lost its bond to the brick or render
For landlords with property near Chichester station, failed wall and movement joints let damp in, so they’re worth checking between tenancies.
What your quote should include
- How hidden problems are handled
- Is VAT in the price?
- How the colour is chosen
- Who does the work, and how experienced they are
Why act early in Almodington
An open joint keeps letting water into the wall with every downpour. In cold weather, frost can damage wet brick and render around the joint, so the problem grows beyond the joint itself. Older cottages and farmhouses around Almodington can have timber floors and frames, where water from a failed joint can cause rot if it’s left.
What you pay reflects the work, not guesswork. That’s why we ask about the job first and agree the price before starting.
Why Almodington customers choose us
- Neat joints and a tidy finish
- Any old sealant cut out fully, not covered over
- Every job guaranteed for a year
- White, clear, grey or coloured to suit, where the product allows
Take a look at how sealant jobs are priced and customer reviews.
DIY versus a professional finish
If you’re set on DIY, put the effort into preparation: remove every trace of old sealant, clean and dry the joint, and follow the product’s cure time. If it does not work out, we can still put it right.
If you’ve already had a go yourself, that’s fine. We cut it out and start again, so just mention it when you contact us.
What the job involves on each surface
Concrete and blockwork
The face of concrete or block is often dusty, so preparation is key. A primer goes on where the product requires one before sealing.
Brickwork movement joints
Brick walls have vertical movement joints to absorb expansion. We reseal them with a low-modulus sealant over backing rod in a colour to suit the brick.
Towns and villages near Almodington
Other services in Almodington
Almodington: your questions answered
Is external mastic in a coastal place like Almodington any different?
Near the coast, wind-driven rain and, nearer the shore, salt air make outside sealant work harder. Choosing the right sealant for the frame and wall, laid at the right depth, helps it last.
Do you work for landlords with property near Chichester station?
Yes. We work for landlords and agents as well as homeowners. Just phone 0345 464 0079 or send us an email with the address and what needs doing, and we will send you a clear quote.
Do the sealants smell?
It depends on the product. Some products have a noticeable smell, others very little, and any smell fades as they cure.
When will the joints need doing again?
That depends on the wall, the weather and the movement. Signs to watch for are cracking, hardening and gaps at the edges, and reseal at that point.
What sealant do you use?
Quality sealants from brands including Arbo and Everbuild, picked for each joint. We explain the product when we quote.
Will it make a mess?
No. The area is protected while we work and cleaned up afterwards.
Can you match the colour of my brickwork?
There’s a good range of exterior colours, including greys, browns, whites and stone tones. We pick the one that suits your wall best.
What is backing rod for?
The foam is closed-cell backing rod. It stops the sealant going in too deep and bonding to three sides so it can flex with the joint.
How we quote for external mastic
There’s no set price list, because no two jobs are the same. What we look at:
- The type of sealant required
- When we can work, for business premises
- Access and height
- Any mould that needs treating
Combining jobs into one visit is normally more efficient than separate visits, so it’s worth mentioning everything you’d like done. We will send you a clear quote for the lot.
What to tell us for a quote
To make quoting easier, please include:
- The type of property
- If someone has resealed it before
- The address or postcode of the job
- Roughly how big the job is
If you’re in Almodington and need external mastic, call 0345 464 0079 or email us. Tell us what the problem is and where, and we’ll agree the price before any work begins.