West Sussex · England
High Salvington External Mastic
External mastic for High Salvington and the surrounding area: careful preparation, the right product and tidy work. Ask us for a quick quote.
- Leaking joints around cladding and façade panels
- Brick movement joints where the sealant has split
- Old sealant gone brittle and cracked
External mastic in High Salvington
Getting the depth right is half the job. Backing rod controls how deep the sealant goes and keeps it off the back of the joint, so it bonds to the two sides only and can stretch. We work on façade panels, brickwork movement joints and concrete & block, and common reasons people get in touch are old sealant gone brittle and cracked and joints where the bead has come unstuck.
In a smaller place like High Salvington, some homes face open ground, and walls and rooflines facing the weather take the worst of it. That is where gutter joints and wall joints tend to fail first.
You’re covered for a year from the day we finish. If anything isn’t right with it, ring 0345 464 0079 or email us.
- Location
- High Salvington (BN13, BN14)
- Region
- West Sussex
- Guarantee
- 12 months on all our work
- Price
- Quoted before any work starts
- Telephone
- 0345 464 0079
- Page updated
- 26 October 2026
Honest limits
Sealant is not the answer to every problem, and we’d rather say so up front. Sealant will not put right:
- Cracks in the bricks or render themselves, away from the joints
- Subsidence or other structural problems
- Loose or hollow render, which needs re-rendering
Not sure which it is? You can ring 0345 464 0079 or send us an email and we’ll tell you honestly.
Joints and surfaces we work on
- Façade panels
- Render & cladding joints
- Joints between brick and frames
- Brickwork movement joints
- Copings & trims
- Concrete & block
The process
All our tools and materials come with us in the van, so you do not need to buy or prepare anything. Once we’ve agreed what’s being done, the area is protected and the work begins. It normally takes anything from a few hours to several days, depending on the building. In a smaller place like High Salvington, parking is seldom the issue; lanes, gates and long drives are worth mentioning. For outside work, side access and the height of the joints help us plan.
- First, the joints are inspected and the access agreed.
- We cut out the old mastic and rake out anything in the joint.
- Joint faces are cleaned back and primed if the sealant needs it.
- Backing rod sized to the joint goes in to set 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
- Tell us if parking is tricky
- Where the joints are inside, avoid wetting them before we arrive
Getting a quote
There’s no standard price list, as no two jobs are quite the same. Instead, your job gets its own clear quote. To get started, call 0345 464 0079 or drop us an email.
Read more
External mastic in High Salvington: local notes
Historic houses like Ecclesden Manor (about 3.1 miles south-west) are a reminder that the area around High Salvington has older buildings as well as new. In older buildings, older walls and rooflines need a sealant that moves with them and suits the material. The South East is one of the drier parts of the UK, yet outdoor joints still have to be sealed dry, so jobs are booked with the weather in mind.
For an older house near a landmark such as St Peter, old and new materials meet at the roofline and walls, which is where sealant earns its keep. Managing a site like Vale School? Then movement joints, cladding joints and gutters on larger buildings need the same care as a house’s. For landlords with property near Durrington-On-Sea station, failed wall and movement joints let damp in, so they’re worth checking between tenancies.
High Salvington is about 2 miles north of Worthing, in West Sussex. From the centre of High Salvington to the outskirts, we cover external mastic for every kind of property. Our West Sussex coverage runs to 371 places, and High Salvington is one of them. You can also see our page for Brighton, about 12 miles away.
We work across BN13 and BN14 for external mastic. You will find streets such as Mill Lane, Furze Road and Gorse Lane, all of which we cover. We also cover Cote (1 mile south-west), Durrington (1 mile south), Findon (1 mile north), Clapham (2 miles west) and Patching (2 miles west). Larger places within reach include Horsham (15 miles north), Bognor Regis (13 miles west), Burgess Hill (14 miles north-east), Littlehampton (6 miles south-west), Shoreham-by-Sea (6 miles east) and Lancing (4 miles east).
Around High Salvington
We work in homes and buildings around Clapham Wood and Durrington High School, among other places. For rail, the closest station is Durrington-On-Sea station, about 2.2 miles south of the centre. A little further out are Museum of Sussex Folklore (1.7 miles south) and Old Castle (1.7 miles south). Not far away are Highdown Hill and Widewater Lagoon.
Landlords, agents and businesses in High Salvington
We regularly work with letting and managing agents. Send the address, what’s needed and the access arrangements.
We also work for businesses, from offices to washrooms and kitchens. On commercial sites, working times can be discussed when we quote.
Your questions about external mastic in High Salvington
Is High Salvington within the area you cover?
Yes, we do. Our work covers London and the South East, and smaller places are part of that. Longer journeys are simply planned in advance.
Can you help a landlord with a rental near Durrington-On-Sea station?
Yes, we work for landlords and agents. Just ring 0345 464 0079 or drop us an email and tell us about the property, and we’ll send you a clear quote.
Do you use backing rod?
Closed-cell backing rod sets the depth of the sealant and stops it sticking to the back of the joint. That way it bonds to the two sides only and can stretch.
Do you have insurance?
Yes. We’re fully insured.
How long does external mastic take?
Typically it takes a few hours to a few days, depending on the length of joint and the access. Bigger jobs take longer, and we will tell you how long to expect.
Will it make a mess?
We keep the work tidy. Nearby surfaces are protected, and the area is left clean when we finish.
Do you take out the old sealant first?
Yes. All of the old material is cut out and the joint cleaned.
Should I point up the gap in my brickwork?
No. Rigid materials cannot move with the wall and the joint fails. Where a joint has been mortared, it can often be raked out and sealed properly.
Nearby places to High Salvington
What else we do in High Salvington
Keeping the joints in good condition
Good habits help new joints last longer. A few tips:
- Wash walls gently around the sealant
- Have failed joints looked at early
- Walk round the building once a year and look at the joints
- Deal with leaking gutters that soak the joints below
Do not paint over the new sealant unless we’ve said the product is paintable. Paint can crack on a flexible joint and spoil the finish.
Once a joint can’t move, the wall finds another way, generally as cracking in the brickwork or render nearby. Catch it early and you reduce the risk.
What affects the cost of external mastic
Some jobs are bigger than they look, and some smaller. The main factors:
- Whether there’s mould to deal with
- Working hours on commercial sites
- How many areas need sealing
- The old material and how stubborn it is
What it costs depends on the amount of work, how hard the old material is to remove and access to the work. We give a clear quote before work begins.
What to tell us for a quote
Photos help, but a description is a good start. Please mention:
- A few photos by email, if you can
- Any access issues, like height or stairs
- The address or postcode of the job
- The type of property
Quotes start with a quick conversation. Describe the problem, the location and the size of the job, and we will talk you through what we’d do. Whenever you are ready, call 0345 464 0079 or send us an email.
Different surfaces, different methods
Brickwork movement joints
People sometimes point up a brick movement joint by mistake. If that is happened, we rake it out and reseal it properly.
Joints between dissimilar materials
Wherever two materials meet, they move differently. A flexible sealant bridges the two so the movement is taken up.
Why act early in High Salvington
Sealing over the top of old mastic doesn’t hold for long. New sealant does not bond well to old, weathered sealant, so the old joint is cut out fully first. In an older home around High Salvington, damp from a failed joint can get into timber and plaster, and that is a much bigger job than renewing the sealant.
No two jobs are quite the same, so each one gets its own quote. Size, access and the product the joint needs all make a difference, and we’ll explain the quote if you ask.
What you get with us
- We’re fully insured
- Sealant colour chosen to suit
- Every job guaranteed for a year
- 4.9 on Google from 180+ five-star reviews
Read what affects the cost or what customers say.