West Sussex · England
External & façade joints in Ellen's Green, West Sussex
Our applicators work in Ellen's Green on sealing brickwork movement joints, render, cladding and façade joints. Old sealant removed completely, joints prepared properly and a one-year guarantee.
- Damp patches traced to an open external joint
- Movement joints filled with mortar instead of sealant
- Joints with sealant missing in places
External mastic for homes and businesses in Ellen's Green
Where two different materials meet, such as brick and render or blockwork and metal, they move at different rates. A flexible exterior sealant takes up that movement. If you have weathered mastic that no longer stretches and movement joints with cracked, split or missing sealant, we can put it right, whatever the surface.
External sealant needs dry, clean surfaces, so work around Ellen's Green is planned for dry weather. Tell us about access to all sides of the building, including outbuildings and garages.
Big or small, it’s backed by our 12-month guarantee in Ellen's Green and across West Sussex.

- Place
- Ellen's Green (RH12)
- Wider area
- West Sussex
- Cover
- A year, on every job
- Quotes
- A clear price before work begins
- Phone
- 0345 464 0079
- Page updated
- 26 October 2026
What we do, step by step
A visit follows a simple pattern: we look at the joints together, protect the area around them, do the work and clear up. Most jobs take a few hours for a handful of joints, longer for a whole elevation. For a village or hamlet like Ellen's Green, 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 checking each joint, agreeing the ones to redo and how we’ll reach them.
- Old sealant and any debris are cut and raked out.
- Both sides are cleaned back to sound material and primed if needed.
- We push in closed-cell backing rod so the sealant is the right depth and bonds to the sides only.
- A flexible exterior sealant is applied and tooled in a colour to suit the wall.
Preparing for the visit
- Clear the area around the work
- Mention any sign-in or site rules at work premises
- Where the joints are inside, avoid wetting them before we arrive
Getting a quote
Want a quote for external mastic? Please phone 0345 464 0079 or drop us an email with a few details. You’ll know what we plan to do, and what it will cost, before any work begins.
Read more
How to look after the new joints
Aftercare is simple, and it makes a real difference:
- Make sure movement joints are not pointed over
- Get split or bare joints resealed while the damage is small
- Keep high-pressure jets off the joints
- Show decorators and builders where the movement joints are
Do not let soil, plants or ivy build up against the new joints. Anything that holds water against the joint wears it out sooner.
Once a joint can’t move, the wall finds another way, usually as cracking in the brickwork or render nearby. Catch it early and you reduce the risk.
Towns and villages near Ellen's Green
More services for Ellen's Green
Outside joints around Ellen's Green
The South East is one of the drier parts of the UK, but outside sealant still needs a dry, clean surface, so outdoor work is planned around the forecast.
If you let a flat or house near Warnham station, outside joints that have cracked can let damp into a rental, so check them between lets.
Ellen's Green is about 5 miles north-west of Horsham, in West Sussex. Ellen's Green gets the same service as everywhere we cover: the old material taken out, joints prepared properly and a 12-month guarantee. Our West Sussex coverage runs to 371 places, and Ellen's Green is one of them. There’s also a page for Crawley, roughly 10 miles from Ellen's Green.
Our applicators cover all of RH12 for external mastic and the streets around it. Nearby, we also carry out external mastic in Walliswood (2 miles north-east), Mayes Green (2 miles north), Ewhurst Green (3 miles north), Ewhurst (3 miles north) and Cranleigh (4 miles north-west). We also work in nearby towns such as Crawley (10 miles east), Horsham (5 miles south-east), Broadfield (9 miles east), Storrington (13 miles south), Billingshurst (6 miles south) and Bewbush (9 miles east).
Landmarks near Ellen's Green
For rail, the closest station is Warnham station, about 4 miles east of the centre. Well-known places in the area include Horsham Hospital (4.8 miles south-east). The countryside around Ellen's Green includes Warnham LNR and Vann Lake.
Honest limits
Sealant isn’t the answer to every problem, and we’d rather say so up front. It will not solve:
- Adding movement joints to masonry that has none
- Render that’s blown, hollow or coming away
- Cracks in the bricks or render themselves, away from the joints
If in doubt, ring 0345 464 0079 or send us an email and we will say what we think.
Surfaces we seal
- Joints between brick and frames
- Render & cladding joints
- Façade panels
- Brickwork movement joints
- Concrete & block
- Copings & trims
Common questions in Ellen's Green
Can you help a landlord with a rental near Warnham station?
Yes, rental work is part of what we do. Just call 0345 464 0079 or send us an email and tell us about the property, and we will send you a clear quote.
Do you cover smaller places like Ellen's Green?
Yes, Ellen's Green is covered. We work across London and the South East, from towns to the smallest places. The journey is planned ahead, so it helps to know about access.
Do you guarantee your work?
Yes: twelve months. If there’s a problem with our work in that time, tell us and we’ll put it right.
What sealant do you use?
Quality sealants from brands including Arbo and Everbuild, chosen to suit the joint. We explain the product when we quote.
Can you work on commercial sites?
Yes. Larger jobs can be planned room by room or area by area.
How long before the joint can be used?
That depends on the sealant used, so follow the cure time we give you when we finish.
How long will you be here?
A typical job takes anything from a few hours to several days, depending on the building, including the preparation. We’ll confirm how long when we quote.
Is it messy?
No. We protect the surfaces around the joints, and we clear up the old sealant and our materials before we leave.
What the job involves on each surface
Render joints
Render is weaker at the surface than brick, so a sealant that stretches easily protects the edges. We prime where the product needs it.
Concrete and blockwork
Blockwork and concrete shrink over time and move with the seasons. We reseal their joints with backing rod and a flexible product.
Quotes for external mastic in Ellen's Green
The price is agreed before any work begins. It takes into account:
- Any working-time requirements on site
- How easy the joints are to reach
- How many rooms, windows or areas are involved
- Any mould that needs treating
The cost depends on how much there is to do, how much old material has to come out and how easy the joints are to reach. You will have a clear quote before any work starts.
What we need to know
To help us quote quickly, please include:
- What the problem is, such as mould, gaps, leaks or cracking
- How many joints, rooms or windows are involved
- Whether it’s a home or a business
- Where the job is, and your postcode
We don’t publish a price list, as no two jobs are quite the same. Instead, we give you a clear price for your job. To get started, phone 0345 464 0079 or drop us an email.
Common problems we fix in Ellen's Green
If plants are growing out of a joint, the sealant has normally failed or was never there. Roots and dirt hold water against the wall and speed up the damage.
The problems people normally mention when they call include:
- Rain getting behind render or cladding at a joint
- Joints with sealant missing in places
- Weeds or debris growing in open joints
- Movement joints filled with mortar instead of sealant
Around Ellen's Green, as everywhere, external mastic is only as good as the preparation behind it.
What your quote should include
- The length of the guarantee
- Who does the work, and how experienced they are
- What insurance they hold
- Whether VAT is included
Why it’s worth doing now in Ellen's Green
A properly done movement joint is an even line in a colour that suits the wall. A rushed bead with no backing looks untidy and doesn’t last. Around Ellen's Green, older homes often have timber in their floors and frames, where water from a failed joint can cause rot if it’s left.
The cost reflects the work involved, not a rough estimate. That’s why we ask a few questions first and agree the price before starting.
Why book with us
- You choose the colour before work begins
- Old sealant always removed completely
- White, clear, grey or another colour, product permitting
- ARBOMaster approved applicator
