West Sussex · England
External & façade joints in Crossbush, West Sussex
External mastic across Crossbush and nearby, with old sealant always removed completely and a 12-month guarantee.
- Joints pointed up with cement by mistake
- Joints with sealant missing in places
- Rain getting behind render or cladding at a joint
What we do, step by step
There is not much for you to do on the day. Show us the job and we’ll take it from there. The job generally takes a few hours for a handful of joints, longer for a whole elevation. For a village or hamlet like Crossbush, the journey is planned in advance: 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.
- The faces are brushed clean and primed where the product requires it.
- Backing rod sized to the joint goes in to set the depth.
- We apply the sealant, tool it and check the whole run.
Getting ready for the visit
- Mention any tricky access
- For business premises, tell us about site rules or sign-in
- Tell us about any water getting in
Getting a quote
For external mastic in Crossbush, ring 0345 464 0079 or send us an email. A short description of the job and where it is helps us quote, and we’ll agree the price before any work begins.
Advice
External mastic in Crossbush, done properly
Low-level joints can generally be done from the ground. For joints higher up, give us some details of the building and we will confirm what access is needed. We work on joints between brick and frames, concrete & block and render & cladding joints, and the jobs we see most are joints where the bead has come unstuck and rain getting behind render or cladding at a joint.
Somewhere as small as Crossbush, homes and farm buildings often face open ground, so walls and rooflines take the full force of wind and rain. Gutter joints and wall joints there need a sealant that can flex and stay put.
The work is guaranteed for twelve months. If there’s a problem with our work within the year, let us know and we will sort it.
- Location
- Crossbush (BN18)
- Wider area
- West Sussex
- Cover
- 12 months on all our work
- Quotes
- Quoted before any work starts
- Telephone
- 0345 464 0079
- Updated
- 26 October 2026
Common questions in Crossbush
Will you come out to Crossbush?
Yes, Crossbush is covered. Our work covers London and the South East, and smaller places are part of that. The journey is planned ahead, so it helps to know about access.
Is external mastic in a coastal place like Crossbush any different?
Coastal weather is harder on outside sealant: there’s more wind-driven rain and, closer to the shore, salt in the air. Choosing the right sealant for the frame and wall, laid at the right depth, helps it last.
Can you seal joints between render and window frames?
Yes. Joints between dissimilar materials are a big part of external work. The sealant is chosen to bond to both sides with primer where required.
Will there be a smell?
There can be a smell while the sealant cures, but it fades. Ventilation helps.
What is backing rod for?
That’s backing rod, a closed-cell foam. It keeps the sealant at the right depth and bonded to the sides only, which would stop it stretching.
Is there a guarantee?
Yes. All our work carries our one-year guarantee.
I’m a tenant. Can you help?
Yes, but check with your landlord or agent first. Many landlords are glad to have it sorted.
Will it make a mess?
Very little: the area around the joints is protected first, and we tidy up before we go.
Places near Crossbush
What else we do in Crossbush
Different surfaces, different methods
Joints between dissimilar materials
Joints where frames, sills or panels meet the wall are common leak points. The old joint is removed and a sealant that bonds to both sides goes in.
Copings and trims
Coping and trim joints face rain and sun head on. We reseal them with an exterior sealant suited to the material.
DIY sealant or a professional job?
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.
Not every job suits DIY: high-level joints, fire-rated gaps, external movement joints and big jobs need the right product, the right access and the right method.
When it isn’t the sealant
New sealant can’t fix everything, and we’d rather say so up front. Sealant won’t put right:
- Loose or hollow render, which needs re-rendering
- Adding movement joints to masonry that has none
- Subsidence or other structural problems
If you are not sure, just phone 0345 464 0079 or email us and we’ll give you a straight answer.
Where we work in Crossbush
- Brickwork movement joints
- Copings & trims
- Façade panels
- Joints between brick and frames
- Render & cladding joints
- Concrete & block
What we are called out for in Crossbush
Joints sealed without backing rod, or far too deep, rarely last. If the sealant sticks to the back as well as the sides, it cannot stretch and tears as soon as the joint widens.
These are the problems we’re asked about most:
- Joints where the bead has come unstuck
- Rain getting behind render or cladding at a joint
- Joints pointed up with cement by mistake
- Old sealant gone brittle and cracked
If you let a flat or house near Arundel station, failed wall and movement joints let damp in, so they’re worth checking between tenancies.
What to look for in a quote
- Are they insured?
- What happens if they find a problem under the old sealant
- What the quote includes, VAT included or not
- Whether they seal over old material or remove it
Walls and rooflines in Crossbush
Crossbush is within about 3 miles 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. London and the South East are among the drier parts of the UK, but outside sealant still needs a dry, clean surface, so outdoor work is planned around the forecast.
Managing a site like The Littlehampton Academy? Then movement joints, cladding joints and gutters on larger buildings need the same care as a house’s. In the older streets around The Parish Church of St Mary Magdalen, an extension built onto an older house moves differently, and the joint between them takes the strain.
Crossbush is about 2 miles north of Littlehampton, in West Sussex. Crossbush gets the same service as everywhere we cover: the old material taken out, joints prepared properly and a 12-month guarantee. Crossbush is one of 371 towns and villages in West Sussex we cover. For nearby work, see our Brighton page.
We cover every part of BN18 for external mastic. We also cover the places around Crossbush: Warningcamp (1 mile north-east), Poling (1 mile south-east), Lyminster (1 mile south-west), Arundel (1 mile north-west) and Toddington (1 mile south). Further out, we also cover Worthing (6 miles east), Bognor Regis (8 miles south-west), Chichester (11 miles west), Selsey (13 miles south-west), Shoreham-by-Sea (12 miles east) and Lancing (9 miles east).
Local landmarks in Crossbush
For rail, the closest station is Arundel station, about 0.5 miles north-west of the centre. Other landmarks nearby include Lyminster Siege Castle (0.5 miles north) and Rustington Museum (2.8 miles south-east). Open spaces near Crossbush include WWT Arundel and Highdown Hill.
Landlords, agents and businesses in Crossbush
Letting agents often deal with us directly. Send the address, what’s needed and the access arrangements and we will give you a quote.
Housing providers, facilities teams and property managers book us too in Crossbush and across West Sussex. We can quote a run of properties together, and we are fully insured for the work.
What affects the quote in Crossbush
We quote each job individually. This is what makes a difference:
- Whether the work is at height
- How many rooms, windows or areas are involved
- Any mould that needs treating
- Which sealant suits the joint
Some things make a job bigger or smaller: the old material and how easily it comes out, any mould to treat, and whether we need extra access for height. We take all of that into account in your quote.
What to tell us for a quote
When you call or email, these details help:
- Pictures of the joints, sent by email
- If it’s domestic, commercial or a hotel
- Any access issues, like height or stairs
- Where the property is
It all starts with a short chat. Tell us what’s wrong, where it is and how much there is, and we will explain how we’d tackle it. Whenever you are ready, call 0345 464 0079 or drop us an email.