West Sussex · England
External & façade joints in Rackham, West Sussex
External mastic across Rackham and nearby, with every bit of old sealant taken out first and a one-year guarantee.
- Sealant that has lost its bond to the brick or render
- Moss and dirt in joints with no sealant left
- Weathered mastic that no longer stretches
External mastic for homes and businesses in Rackham
On houses, flats and commercial buildings across Rackham, we reseal joints in brickwork, render, cladding and façade panels. Every joint gets the same careful preparation: clean joint faces and the right depth. We work on concrete & block, joints between brick and frames and brickwork movement joints, and people most often call us about joints pointed up with cement by mistake and moss and dirt in joints with no sealant left.
Around Rackham, 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.
You are covered for a year from the day we finish. If there’s a problem with it, please phone 0345 464 0079 or drop us an email.
- Place
- Rackham (RH20)
- Wider area
- West Sussex
- Guarantee
- One year on every job
- Quote
- A clear quote up front
- Telephone
- 0345 464 0079
- Page updated
- 26 October 2026
What external mastic looks like in Rackham
Compared with the north and west, the South East gets less rain, though outdoor sealant still has to go onto a dry joint, so the forecast decides the day. With historic houses such as Parham House (about 0.7 miles north-east) nearby, there’s older building stock in the area around Rackham 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.
For landlords with property near Amberley station, failed wall and movement joints let damp in, so they’re worth checking between tenancies. In the older streets around Church of St Peter, older walls, gutters and the joints where extensions meet them need a flexible sealant.
Rackham is about 7 miles north of Littlehampton, in West Sussex. If you need external mastic in Rackham, it’s easy to get a quote: please phone 0345 464 0079 or drop us an email. We are based in Crawley and cover West Sussex, Rackham included. Rackham is one of 371 places in West Sussex where we work for external mastic. Brighton is on our list too, around 17 miles away.
Every address in RH20 is within our area for external mastic. We also cover the places around Rackham: Cross Gate (1 mile west), Amberley (1 mile west), Coldwaltham (2 miles north-west), Bury (2 miles west) and Hardham (3 miles north). Larger places within reach include Horsham (13 miles north-east), Worthing (8 miles south-east), Bognor Regis (12 miles south-west), Chichester (13 miles south-west), Littlehampton (7 miles south) and Shoreham-by-Sea (12 miles south-east).
Around Rackham
Locally, jobs take us to homes and businesses close to Parham Park. For rail, the closest station is Amberley station, roughly 1.9 miles south-west. Nearby you will also find Arundel and District Hospital (4.8 miles south-west) and Amberley Museum (1.8 miles south-west). Green spaces nearby include Bignor Hill and Amberley Wildbrooks RSPB Reserve.
Looking after it afterwards
No joint lasts for ever, but care makes a real difference. Our tips:
- Never let anyone fill a movement joint with mortar
- Tell anyone working on the walls about the movement joints
- Fix overflowing gutters above sealed joints
- Have failed joints looked at early
If you have more work done on the wall, such as new render, cladding or an opening, show the contractor the movement joints. They should be kept open and resealed, not filled.
Leaks behind façade panels and render often go unseen. By the time there’s a damp patch, the damage can be well established.
Landlords, agents and businesses in Rackham
Hotels need rooms back in use, so we plan the work room by room around your bookings where we can. We’ve worked in hotels as well as homes and businesses.
Mouldy or split sealant often shows up at the end of a tenancy, and it’s quick to put right between tenancies. Several properties can go on one quote.
What happens on the day
There’s no need to move everything out before we come, only the area right around the joints. Everything nearby is protected, and the work takes anything from a few hours to several days, depending on the building for a typical job. Somewhere like Rackham needs a little journey planning: let us know about lanes, gates and parking. Everything for the job comes with us, so a second trip is avoided where possible.
- First we look over the joints with you, agree which to renew and talk through access.
- We cut out the failed sealant and rake out any dirt or growth.
- We clean both faces of the joint and prime them where the product calls for it.
- 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.
Before we arrive
- Mention any tricky access
- Move anything stored near the joints
- Tell us about any previous sealing or DIY attempts
Getting a quote
There’s no standard price list, because every job is different. Instead, we give you a clear price for your job. To get started, ring 0345 464 0079 or drop us an email.
Advice
Common questions in Rackham
I let a flat near Amberley station. Can you help?
Yes, rental work is part of what we do. You can phone 0345 464 0079 or drop us an email with the address and a few details, and we’ll give you a fixed price before any work starts.
Can you do external mastic in Rackham?
Yes, Rackham is within the area we cover. We work across London and the South East. Just ring 0345 464 0079 or send us an email with a few details of the job.
How do I get a quote for external mastic in Rackham?
Size, access and the old material all affect the cost. Call for a quick quote.
Is it OK to fill a movement joint with cement?
No. Rigid materials cannot move with the wall and the joint fails. If it has already been filled, we can normally cut it out and reseal it.
Can you do several jobs on one visit?
Yes, and it often makes sense. Combining jobs makes good use of the visit, so mention them when you ask for a quote.
What is a movement joint?
Brickwork, render and cladding all move a little, and planned joints take up that movement. The gap is sealed with a flexible sealant over backing rod.
Are you ARBOMaster approved?
Yes. Mr Mastic is an ARBOMaster approved applicator and we are fully insured too.
Do you take out the old sealant first?
Yes. We cut out all the old sealant and clean the joint before resealing.
Leave it or put it right?
A properly done movement joint is an even line in a colour that suits the wall. A hurried job with smeared edges and no backing looks worse and fails sooner so it’s worth doing right. Around Rackham, older homes often have timber in their floors and frames, where water from a failed joint can cause rot if it’s left.
Combining jobs into one visit is normally more efficient than separate visits. You’ll get one clear quote for the whole job.
Why book with us
- Sanitary silicone with an anti-fungal additive in wet areas
- 12-month guarantee on every job
- Experience in homes, commercial sites and hotels
- Neat joints and a tidy finish
See our cost guide or customer reviews.
How the job changes by 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.
Cladding and façade panels
Where a cladding system has its own specified sealant, we follow it. Send us any details you have about the façade.
Also near Rackham
More services for Rackham
Can I do it myself?
Some sealant jobs are within reach of a careful DIYer, like a short, easy-to-reach joint indoors. Where it goes wrong is sealing over the old bead, working on a wet joint or overloading the gap.
If you’ve already had a go yourself, that’s fine. We remove it and do the joint properly, so tell us about it when you ask for a quote.
What sealant work cannot fix
We won’t take on work that won’t last, so these are the limits:
- Damp from another source, such as a leaking gutter or a bridged damp-proof course
- Adding movement joints to masonry that has none
- Cracks in the bricks or render themselves, away from the joints
Not sure which it is? You can call 0345 464 0079 or email us and we will tell you honestly.
Where we work in Rackham
- Concrete & block
- Copings & trims
- Joints between brick and frames
- Brickwork movement joints
- Façade panels
- Render & cladding joints