West Sussex · England
External Mastic in Hurst Wickham
Sealing brickwork movement joints, render, cladding and façade joints for homes and businesses in Hurst Wickham and across West Sussex. Fully insured, ARBOMaster approved and guaranteed for a year.
- Panel joints letting water in
- Moss and dirt in joints with no sealant left
- Joints with sealant missing in places
How we handle external mastic in Hurst Wickham
We’re ARBOMaster approved applicators, and each external joint gets a sealant suited to it. Some surfaces need a primer before sealing and we use one wherever it does. We work on brickwork movement joints, façade panels and render & cladding joints, and people most often call us about brick movement joints where the sealant has split and plants rooting in failed movement joints.
Around Hurst Wickham, older buildings can be stone, brick or timber-framed, many with extensions added later. The joints where those materials meet are the weak points, and they need the right sealant at the right depth.
Our work is backed for twelve months, in Hurst Wickham and everywhere else we cover.
- Where
- Hurst Wickham (BN6)
- Region
- West Sussex
- Guarantee
- A year, on every job
- Quote
- Quoted before any work starts
- Phone
- 0345 464 0079
- Updated
- 26 October 2026
What we do, step by step
On the day, we start by going over the job with you, so there are no surprises. We protect the surfaces around the joints before any work starts. Most jobs take a few hours to a few days, depending on the length of joint and the access. For a village or hamlet like Hurst Wickham, 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.
- Each joint is checked and the colour of the new sealant agreed.
- We take out the old sealant until the faces are sound.
- Backing rod goes in so the sealant can stretch between the two faces.
- We prime the faces where required.
- We gun in low-modulus sealant and tool it neatly.
Preparing for the visit
- On commercial sites, let us know about site rules
- Plan for the work area to be out of bounds to pets and children
- Move anything stored near the joints
How to get a quote
The more we know about the job, the more useful the quote. Let us know the location, the problem and roughly how many joints.
Advice
What we are called out for in Hurst Wickham
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.
Signs it’s time to call us include:
- Failed seals between different materials
- Joints pointed up with cement by mistake
- Joints with sealant missing in places
- Sealant pulling away from one side of the joint
In the older streets around Church of St George, the joints between older walls, newer extensions and the roofline need a sealant that can move.
What to look for in a quote
- How long to leave it before use
- Is VAT in the price?
- Is the old sealant removed completely?
- What insurance they hold
Outside joints around Hurst Wickham
With historic houses such as Ockenden Manor (about 5 miles north) nearby, there’s older building stock in the area around Hurst Wickham 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. Rainfall in the South East is lower than in much of the UK, but outside sealant still needs a dry, clean surface, so outdoor work is planned around the forecast.
Schools such as St Lawrence CofE Primary School are buildings too, and larger buildings have long runs of movement joint that eventually need resealing. Letting a property close to Hassocks station? Then failed wall and movement joints let damp in, so they’re worth checking between tenancies.
Hurst Wickham is about 2 miles south-west of Burgess Hill, in West Sussex. Jobs in Hurst Wickham get the same care as everywhere else we work: old sealant removed completely, careful preparation and a one-year guarantee. Hurst Wickham is one of 371 places in West Sussex we cover. Our Brighton page covers work nearby (7 miles or so).
Here we cover the BN6 postcode area for external mastic. You will find streets such as College Lane, Hurst Wickham Close and Belmont Lane, and we cover them all. We also cover the places around Hurst Wickham: Hurstpierpoint (1 mile west), Hassocks (1 mile south-east), Keymer (1 mile south-east), Clayton (2 miles south-east) and Sayers Common (2 miles north-west). Further out, we also cover Crawley (12 miles north), Horsham (11 miles north-west), Worthing (13 miles south-west), Haywards Heath (5 miles north-east), East Grinstead (15 miles north-east) and Shoreham-by-Sea (8 miles south-west).
Around Hurst Wickham
We work in homes and buildings around Downlands Community School and The Poacher pub. For rail, the closest station is Hassocks station, roughly 1 mile south-east. A little further out are Clayton Castle (1.9 miles south) and The Budding Foundation Museum of Gardening (1 mile south-east). Not far away are Wolstonbury Hill and Bedelands Farm Nature Reserve.
What happens if it’s left?
Sealing over the top of old mastic doesn’t hold for long. New sealant doesn’t bond well to old, weathered sealant, so the old joint is cut out fully first. In a small place like Hurst Wickham, homes can be exposed to wind and rain, which finds any gap, and damp in older walls is slow to dry out.
We do not show prices on the website, because each job is priced on what it involves. Call for a quick quote.
Why book with us
- Arbo and Everbuild products
- A 12-month guarantee on all work
- Sanitary silicone with an anti-fungal additive in wet areas
- Sealant colour chosen to suit
Read what affects the cost or our reviews.
What sealant work cannot fix
We’d rather tell you now than do work that won’t last, so here’s what sealant can’t put right:
- Loose or hollow render, which needs re-rendering
- Damp from another source, such as a leaking gutter or a bridged damp-proof course
- Cutting new joints into brickwork, which is building work rather than sealant work
If you’re not sure, just ring 0345 464 0079 or drop us an email and we will give you a straight answer.
What we seal
- Façade panels
- Copings & trims
- Brickwork movement joints
- Joints between brick and frames
- Render & cladding joints
- Concrete & block
How we quote for external mastic
Jobs vary more than people expect. What affects the quote:
- The size of the job
- When we can work, for business premises
- Any mould that needs treating
- Which sealant suits the joint
Homes and businesses are quoted the same way: the amount of work, the access and the products needed, along with when we can work on site. Call for a quick quote and we will explain what it covers.
What to tell us for a quote
To make quoting easier, please include:
- Photos by email, if that is easy
- What’s wrong with the joints now
- How we’d reach the joints
- Where the property is
To get a quote, call 0345 464 0079 or drop us an email with the location and a short description of the problem. You will have a clear quote before work begins.
Your questions about external mastic in Hurst Wickham
Is Hurst Wickham within the area you cover?
Yes, we do. Our work covers London and the South East, from towns to the smallest places. The journey is planned ahead, so it helps to know about access.
Can you help a landlord with a rental near Hassocks station?
Yes, rental work is part of what we do. Just phone 0345 464 0079 or drop us an email and tell us about the property, and we’ll send you a clear quote.
Is it OK to seal over old sealant?
No. New silicone will not bond to old silicone, and anything trapped underneath, including mould and water, stays there. We remove it all first.
What do you need from me for a quote?
Only a few details: where it is, what you’ve noticed and how we reach it. After that, simply phone 0345 464 0079 or email us.
Can a movement joint be filled with mortar?
No. A mortar-filled joint can’t move, so the wall cracks somewhere else instead. It needs a flexible sealant over backing rod.
Can you work on commercial sites?
Yes. Hotels, offices and other businesses use us.
How long does the job take?
Most jobs take anything from a few hours to several days, depending on the building, including preparation and clearing up. We will confirm how long when we quote.
When is the sealant fully cured?
That depends on the sealant used, so follow the cure time we give you.
Towns and villages near Hurst Wickham
Also in Hurst Wickham
Landlords, agents and businesses in Hurst Wickham
If you manage several properties in or around Hurst Wickham, jobs at different addresses can go on one quote. Just tell us the addresses and what each one needs, and pictures by email help.
Whether it’s one flat or a portfolio, you get the same standard of work: old sealant fully removed, joints prepared properly and a 12-month guarantee.
Different surfaces, different methods
Joints between dissimilar materials
Each side of the joint may need its own preparation. Both surfaces are cleaned and primed as the product requires.
Copings and trims
Copings expand and contract through the day, so the joints need a sealant that stays flexible.