West Sussex · England
External & façade joints in Worthing, West Sussex
Our applicators work in Worthing on sealing brickwork movement joints, render, cladding and façade joints. Old material cut out, joints cleaned and sealed neatly.
- Rain getting behind render or cladding at a joint
- Plants rooting in failed movement joints
- Joints with sealant missing in places
External mastic in Worthing
Low-level joints can usually be done from the ground. Where joints are higher up, tell us about the building when you get in touch and we’ll confirm what’s needed to reach them safely. If you’re dealing with old sealant gone brittle and cracked and leaking joints around cladding and façade panels, we can put it right.
A place the size of Worthing has buildings of every age, from older brick terraces to modern blocks with rendered or clad walls. Newer buildings rely on sealed movement joints, while older ones need their gutters, fascias and trims kept tight.
A 12-month guarantee comes as standard, so you are not left on your own once the job is done.
- Location
- Worthing (BN13, BN11, BN14, BN12)
- Wider area
- West Sussex
- Guarantee
- One year on every job
- Price
- A clear price before we start
- Telephone
- 0345 464 0079
- Last updated
- 26 October 2026
Do you need external mastic in Worthing?
Sunlight, wet weather and frost wear exterior sealant down. In time it goes hard, crazes on the surface and stops stretching, so the next time the wall moves, it splits or pulls away.
Look out for any of the following:
- Old sealant gone brittle and cracked
- Failed seals between different materials
- Joints where the bead has come unstuck
- Rain getting behind render or cladding at a joint
For an older house near a landmark such as St Andrew's Church, an extension built onto an older house moves differently, and the joint between them takes the strain.
What your quote should include
- What the quote includes, VAT included or not
- Which sealant they’ll use, and why
- Whether all the old sealant comes out first
- Are they insured?
How the visit works
Before we leave, we go over the finished joints with you. The work normally takes anything from a few hours to several days, depending on the building, depending on the size of the job. For homes and businesses in busier parts of Worthing, parking needs a little planning. Let us know about stairs, lifts or shared entrances too.
- We inspect the joints and agree which need resealing and how they’ll be reached.
- Old sealant and any debris are cut and raked out.
- The joint faces are cleaned and primed where the sealant needs it.
- Closed-cell backing rod is fitted to set the depth and stop three-sided bonding.
- We gun in a flexible exterior sealant in a colour that suits the wall and tool it neatly.
Before we arrive
- Move anything stored near the joints
- Tell us about any previous sealing or DIY attempts
- Mention any parking rules near the property
How to get a quote
There’s no standard price list. Instead, your job gets its own clear quote. To arrange one, phone 0345 464 0079 or email us.
Advice
What external mastic looks like in Worthing
Worthing is close to the coast, where wind-driven rain is a fact of life and, nearer the shore, so is salt air. That’s hard on movement joints and outside wall joints, especially on the side facing the sea. With historic houses such as Ecclesden Manor (about 3.1 miles west) nearby, there’s older building stock in the area around Worthing 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 site and facilities teams at buildings such as Durrington High School, larger buildings have long runs of movement joint that eventually need resealing. Letting a property close to West Worthing station? Then outside joints that have cracked can let damp into a rental, so check them between lets.
Worthing is in West Sussex. For external mastic in and around Worthing, it’s easy to get a quote: please call 0345 464 0079 or drop us an email. We cover West Sussex from our Crawley base, Worthing included. Worthing is one of 371 places in West Sussex we cover. Our Brighton page covers work nearby (12 miles or so).
Postcode districts we cover here for external mastic: BN13, BN11, BN14 and BN12. If you need external mastic at a property on Church Road, Market Place and High Street or a nearby road, we can help. Main roads around Worthing include the A24 and A27, which makes travel easy. Other places close to Worthing include Salvington (1 mile north), Offington (1 mile north-east), Broadwater (1 mile east), Findon Valley (2 miles north) and East Worthing (2 miles east). We also work in nearby towns such as Bognor Regis (13 miles west), Burgess Hill (15 miles north-east), Littlehampton (6 miles west), Shoreham-by-Sea (6 miles east), Lancing (3 miles east) and Rustington (5 miles west). Worthing is among the bigger towns we cover in West Sussex.
Local landmarks in Worthing
We work in homes and buildings around The George And Dragon Public House, Durrington Minature Railway and Thomas A Becket First School, among other places. For rail, the closest station is West Worthing station, roughly 0.5 miles south-east of the centre. Well-known places in the area include The Acre (1.2 miles south-east) and Old Castle (under half a mile east). The countryside around Worthing includes Highdown Hill and Widewater Lagoon.
Different surfaces, different methods
Brickwork movement joints
Brick moves with heat and moisture, and grows a little over time. That movement goes into the joint, so the sealant in it must stay soft and stretchy.
Copings and trims
A failed coping joint lets water into the top of the wall. Resealing them is a small job that protects a lot.
How we quote for external mastic
Call for a quick quote. The main things that affect it are:
- Any mould that needs treating
- Any working-time requirements on site
- How many areas need sealing
- Which sealant suits the joint
No two jobs are quite the same, so we quote each one individually. The number of joints, how easy they are to reach and the sealant needed all play a part, and we’ll explain the quote if you ask.
What we need to know
Before you ask for a quote, have a think about:
- Any access issues, like height or stairs
- Whether it’s a home or a business
- Pictures of the joints, sent by email
- Whether it has been sealed before
For a quote, call 0345 464 0079 or email us with the location and a short description of the problem. We’ll give you a clear price before any work starts.
Places near Worthing
Other services in Worthing
When something else is needed
A few problems are outside what sealant work can do:
- Movement that is more than a sealant joint can take
- Rising or penetrating damp from elsewhere in the wall
- Render that’s blown, hollow or coming away
If in doubt, ring 0345 464 0079 or email us and we’ll say what we think.
Joints and surfaces we work on
- Concrete & block
- Render & cladding joints
- Joints between brick and frames
- Façade panels
- Brickwork movement joints
- Copings & trims
DIY versus a professional finish
If you’re set on DIY, put the effort into 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.
The difference is mostly in the preparation and the product. We take joints back to clean, dry surfaces, and the sealant is chosen for how the joint moves and where it is, then guaranteed for a year.
What happens if it’s left?
An open joint keeps letting water into the wall with every downpour. Wet masonry is more easily damaged by frost near the open joint, so the problem grows beyond the joint itself. In flats, shops and offices in Worthing, a failed joint can let water into the unit below or behind a wall, where it can go unnoticed until the damage is done.
Some things make a job bigger or smaller: the old material and how easily it comes out, whether mould needs treating, and whether we need extra access for height. Your quote takes all of that into account.
Why book with us
- Fully insured
- One-year guarantee on every job
- Old sealant always removed completely
- You choose the colour before work begins
Take a look at what affects the cost or what customers say.
Worthing: your questions answered
Does living near the coast affect external mastic in Worthing?
Near the coast, wind-driven rain and, nearer the shore, salt air make outside sealant work harder. Choosing the right sealant for the frame and wall, laid at the right depth, helps it last.
Do you work for landlords with property near West Worthing station?
Yes. We work for landlords and agents as well as homeowners, and several properties can go on one quote. You can call 0345 464 0079 or drop us an email with the details for a clear quote.
Can I do it myself?
You can, for simple jobs. The key is preparation: remove all the old material and work on a clean, dry joint. If it doesn’t work out, we can redo it.
When will the joints need doing again?
It varies from wall to wall: sunny, exposed elevations and busy joints wear faster. A yearly look will tell you when they need doing. Our work comes with a 12-month guarantee.
Can you seal over the old sealant?
No. We remove every bit of old sealant first.
Is there any odour?
Sometimes, a little. It fades as the sealant cures, and ventilation helps.
Will the old sealant be removed?
Yes, always, and completely. New silicone does not stick to old silicone, so any old material comes out before anything new goes in.
Do you work for hotels and businesses?
Yes. Hotels, offices and other businesses use us.