West Sussex · England
East Ashling External Mastic
Specialist external mastic for East Ashling: the right sealant, proper preparation and a neat finish. Ask us for a quick quote.
- Movement joints with cracked, split or missing sealant
- Weeds or debris growing in open joints
- Damp patches traced to an open external joint
How the visit works
When we arrive, we look over the joints with you first, so you know exactly what we’re doing. We protect the surfaces around the joints before any work starts. The work usually takes a few hours for a handful of joints, longer for a whole elevation. Somewhere like East Ashling 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.
- First, the joints are inspected and the access agreed.
- Every bit of old sealant and any mortar or debris is cut out.
- The faces are brushed clean and primed where the product requires it.
- We fit closed-cell backing rod to control the depth.
- We apply the sealant, tool it and check the whole run.
How to prepare
- Keep pets and children clear of the area while we work
- Mention any parking rules near the property
- Let us know about stairs, lifts or work at height
Get a quote
It all starts with a short chat. Tell us what’s wrong, where it is and how much there is, and we will talk you through what we’d do. When it suits you, call 0345 464 0079 or email us.
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External mastic in East Ashling, done properly
A movement joint is only as good as its depth. 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. If you have movement joints filled with mortar instead of sealant and water getting into walls through failed joints, we can put it right.
External sealant needs dry, clean surfaces, so work around East Ashling is planned for dry weather. Tell us about access to all sides of the building, including outbuildings and garages.
There’s a 12-month guarantee on every job, whatever its size.
- Location
- East Ashling (PO18)
- Wider area
- West Sussex
- Cover
- A year, on every job
- Quotes
- Quoted before any work starts
- Telephone
- 0345 464 0079
- Updated
- 26 October 2026
East Ashling: your questions answered
Can you help a landlord with a rental near Bosham station?
Yes, landlords and agents are among the people we work for. You can ring 0345 464 0079 or send us an email with the details for a clear quote.
Do you cover smaller places like East Ashling?
Yes. East Ashling 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.
Which products do you use?
Products from Arbo and Everbuild, among others, chosen to suit the joint. We explain the product when we quote.
Do you remove the old sealant?
Always. Sealing over the old bead is the commonest cause of early failure, so we never do it.
Should I point up the gap in my brickwork?
No, not if it’s a movement joint. Pointing it stops it working, and the wall may crack nearby. A flexible sealant is the right fill.
Is it worth trying it myself?
You can, for simple jobs. Preparation is everything: all the old sealant out, and a clean, dry joint. If it doesn’t work out, we can redo it.
How long should I leave it?
That depends on the sealant used, so please follow the time we give you when we finish.
Can I add another job to the visit?
Yes, and it often makes sense. Doing several areas at once is usually more efficient.
Outside joints around East Ashling
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. With historic houses such as West Dean House (about 4 miles north-east) nearby, there’s older building stock in the area around East Ashling as well as newer homes. Where a home is older, older walls and rooflines need a sealant that moves with them and suits the material.
In the older streets around Church of St Andrew, older walls, gutters and the joints where extensions meet them need a flexible sealant. For site and facilities teams at buildings such as Funtington Primary School, movement joints, cladding joints and gutters on larger buildings need the same care as a house’s.
East Ashling is about 3 miles north-west of Chichester, in West Sussex. We carry out external mastic for homes and businesses in East Ashling and the surrounding area, as part of our work across West Sussex. Our area takes in 371 places across West Sussex. We also work in Portsmouth, about 11 miles from East Ashling.
We cover every part of the PO18 postcode area for external mastic and the streets around it. Other places close to East Ashling include West Ashling (1 mile west), West Stoke (1 mile north-east), Funtington (1 mile north-west), Broadbridge (2 miles south) and Hambrook (2 miles west). Within a short drive, we also cover Bognor Regis (8 miles south-east), Chichester (3 miles south-east), Selsey (9 miles south), Littlehampton (14 miles east), Emsworth (4 miles west) and Rustington (15 miles east).
Around East Ashling
We work in homes and buildings around Bishop Luffa School and The Horse And Groom Public House and the streets around them. East Ashling’s nearest station is Bosham station, roughly 1.4 miles south of the centre. Other landmarks nearby include Novium Museum (3 miles south-east) and Chichester Castle (3.1 miles south-east). Open spaces near East Ashling include Stoke Down and Kingley Vale National Nature Reserve.
How the job changes by surface
Concrete and blockwork
Big joints in concrete need careful depth control. We size the backing rod to the gap and keep the sealant to the right depth.
Brickwork movement joints
People sometimes point up a brick movement joint by mistake. If that’s happened, we rake it out and reseal it properly.
DIY versus a professional finish
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.
Overfilling a joint is a classic DIY mistake. A thick, smeared bead looks untidy and does not move well, and getting the depth right matters as much as the look.
Landlord and commercial work in East Ashling
We also work for property managers and facilities teams. Several sites can be quoted together, and we are fully insured.
We also work for businesses, from offices to washrooms and kitchens. On commercial sites, working times can be discussed when we quote.
What affects the quote in East Ashling
The price is agreed before any work begins. It’s based on:
- How many rooms, windows or areas are involved
- Any working-time requirements on site
- Whether the work is at height
- How much old sealant there is and how hard it is to remove
Combining jobs into one visit normally 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.
What we need to know
When you contact us, it’s useful to know:
- How we’d reach the joints
- How many joints, rooms or windows are involved
- The address or postcode of the job
- Photos by email, if that is easy
If you’re in East Ashling and need external mastic, call 0345 464 0079 or send us an email. A short description of the job and where it is helps us quote, and you will get a clear quote before work begins.
Common problems we fix in East Ashling
Poor preparation causes many early failures: joint faces that were dusty or damp, unprimed where they needed it, or still carrying old sealant. The sealant never bonds properly.
Most people get in touch after spotting something like this:
- Failed seals between different materials
- Movement joints with cracked, split or missing sealant
- Joints pointed up with cement by mistake
- Hard, crazed mastic that has stopped moving
If you let a flat or house near Bosham station, split movement joints are easy to miss on a rental until damp shows inside.
What your quote should include
- Is VAT in the price?
- What preparation is included
- How the colour is chosen
- How hidden problems are handled
Nearby places to East Ashling
Other services in East Ashling
What we cannot put right
Honest advice matters more to us than a booking, so here’s what sealant cannot fix:
- Movement that is more than a sealant joint can take
- Cracked brickwork or render that needs a builder or plasterer
- Loose or hollow render, which needs re-rendering
If you’re not sure, just ring 0345 464 0079 or drop us an email and we’ll give you a straight answer.
Where we work in East Ashling
- Render & cladding joints
- Concrete & block
- Copings & trims
- Brickwork movement joints
- Joints between brick and frames
- Façade panels