West Sussex · England
External Mastic in Bognor Regis
Sealing brickwork movement joints, render, cladding and façade joints for homes and businesses in Bognor Regis and across West Sussex. Fully insured, ARBOMaster approved and guaranteed for a year.
- Rain getting behind render or cladding at a joint
- Joints with sealant missing in places
- Joints where the bead has come unstuck
Your questions about external mastic in Bognor Regis
Is Bognor Regis in your area for external mastic?
Yes, Bognor Regis is within the area we cover. Our work covers London and the South East. Just call 0345 464 0079 or email us with a few details of the job, and we will give you a clear price.
I let a flat near Bognor Regis station. Can you help?
Yes, rental work is part of what we do. Just call 0345 464 0079 or drop us an email and tell us about the property, and we will give you a clear price.
Do you work at height?
That depends on how high the joints are and the ground below. Low-level joints are straightforward; for higher ones, send details and we will confirm the access.
Can you seal over the old sealant?
No. The old sealant always comes out first.
Where are you based?
Our base is Crawley, with over 20 years’ experience. We work across South East England, London and Scotland.
Are you fully insured?
Yes. We are fully insured.
What colours does the sealant come in?
There’s a good range of exterior colours, including greys, browns, whites and stone tones. We choose the closest to your brick or render so it doesn’t stand out.
Can I do it myself?
For a simple, easy-to-reach joint, a careful DIYer can do a reasonable job. The usual mistakes are sealing over old sealant, sealing a damp joint and using too much.
External mastic for homes and businesses in Bognor Regis
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 where a rigid filler would soon crack. We work on copings & trims, façade panels and render & cladding joints, and common reasons people get in touch are movement joints filled with mortar instead of sealant and hard, crazed mastic that has stopped moving.
Flats, offices and shops in Bognor Regis have long runs of movement joints, cladding joints and roofline trims. When those fail, water gets behind the face of the building, often unseen until it shows inside.
A one-year guarantee comes as standard, so you are not left on your own once the job is done.
- Location
- Bognor Regis (PO21, PO22)
- Region
- West Sussex
- Cover
- One year on every job
- Quotes
- A clear price before work begins
- Call
- 0345 464 0079
- Last updated
- 26 October 2026
Looking after it afterwards
No joint lasts for ever, but care makes a real difference. Our tips:
- Clear growth from the base of walls and joints
- Get split or bare joints resealed while the damage is small
- Never let anyone fill a movement joint with mortar
- Keep water from gutters off the wall
Keep the joints clear of soil, plants and climbing growth. Damp material against the sealant shortens its life.
Once a joint cannot move, the wall finds another way, normally as cracking in the brickwork or render nearby. Resealing it early helps prevent that.
What the job involves on each surface
Joints between dissimilar materials
Where a frame or panel meets masonry, water often finds a way in. We cut out the old sealant and reseal with a product suited to both surfaces.
Cladding and façade panels
If the façade has a specified sealant, that is what we use, or one the system allows. Send us any details you have about the façade.
Can I do it myself?
Not every job suits DIY: high-level joints, fire-rated gaps, external movement joints and big jobs call for the right materials, safe access and experience.
If you’ve already had a go yourself, that’s fine. We cut it out and start again, so tell us about it when you ask for a quote.
What affects the cost of external mastic
We don’t publish a price list, because no two jobs are the same. The quote depends on:
- Which sealant suits the joint
- Mould in or behind the old joints
- The old material and how stubborn it is
- The size of the job
Doing several joints on one visit is normally more efficient than separate visits. You will get one clear quote for the whole job.
What we need to know
Photos help, but a description is a good start. Please mention:
- Any access issues, like height or stairs
- How many joints, rooms or windows are involved
- Where the job is, and your postcode
- What’s wrong with the joints now
The more we know about the job, the more useful the quote. Let us know the location, the problem and roughly how many joints.
Bognor Regis buildings and the weather
Bognor Regis is close to the coast, and homes near the sea take more wind-driven rain, with salt in the air closer to the shore. That’s hard on movement joints and outside wall joints, especially on the side facing the sea. 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.
For site and facilities teams at buildings such as The Regis School, larger buildings have long runs of movement joint that eventually need resealing. Homes close to Church of St Mary Magdalene include some older properties, and the joints between older walls, newer extensions and the roofline need a sealant that can move. Rented homes near Bognor Regis station change hands often, and split movement joints are easy to miss on a rental until damp shows inside.
Bognor Regis is in West Sussex. If you need external mastic in Bognor Regis, it’s easy to get a quote: please ring 0345 464 0079 or drop us an email. We cover West Sussex from our Crawley base, Bognor Regis included. Our West Sussex coverage runs to 371 places, and Bognor Regis is one of them. There’s also a page for Portsmouth, about 17 miles away.
Work in PO21 and PO22 is quoted and booked the same way as anywhere else. Local streets include Station Road, London Road and Manet Square, all of which we cover. With the A29 and A259 close by, Bognor Regis is simple for us to get to. We also cover the places around Bognor Regis: South Bersted (1 mile north-east), Aldwick (1 mile south-west), Felpham (1 mile east), Shripney (2 miles north-east) and Lagness (2 miles west). Further out, we also cover Worthing (13 miles east), Chichester (5 miles north-west), Selsey (6 miles south-west), Littlehampton (7 miles east), Emsworth (12 miles west) and Rustington (8 miles east). Bognor Regis is one of the larger places we cover in West Sussex.
Local landmarks in Bognor Regis
Around Bognor Regis, our work takes us to homes and buildings near Norfolk Hotel, Southway Primary School and West Park and the streets around them. The nearest railway station is Bognor Regis station, about 0.5 miles south-east. A little further out are Bognor Regis War Memorial Hospital (0.5 miles east) and Tote Copse Castle (3.1 miles north).
Other services in Bognor Regis
Why it’s worth doing now in Bognor Regis
Low-modulus sealants stretch easily, so they put less strain on the joint edges. That protects surfaces like brick, render and concrete. A stiffer product can damage the joint edge as it fails. Busy buildings in Bognor Regis, from hotels to offices, cannot afford rooms out of use for leaks or mould, so it pays to replace failing joints before they get that far.
A failed joint rarely gets cheaper to fix by waiting, because water and mould keep working on it. If you’re not sure whether it needs doing, call 0345 464 0079 or email us and we’ll give you an honest view and a quote.
What you get with us
- A sealant colour to suit the surroundings
- Domestic, commercial and hotel work
- Anti-fungal sanitary silicone in wet areas
- Quality sealants from Arbo and Everbuild
Take a look at our cost guide or what customers say.
The process
There’s no need to move everything out before we come, only the area right around the joints. We protect the rest, and the job takes anything from a few hours to several days, depending on the building in most cases. Where a business in Bognor Regis needs to stay open, out-of-hours working can be arranged, while home visits are arranged within our normal working hours, Monday to Saturday.
- We start by walking round the building and agreeing the joints and the access.
- We cut out the old mastic and rake out anything in the joint.
- The faces are brushed clean and primed where the product requires it.
- Backing rod sized to the joint goes in to set the depth.
- The exterior sealant is applied, tooled and checked along its length.
Before we arrive
- Tell us if parking is tricky
- Try not to wet indoor joints just before the visit
- Mention any tricky access
How to get a quote
For external mastic in Bognor Regis, phone 0345 464 0079 or send us an email. Tell us what the problem is and where, and you’ll get a clear quote before work begins.
Related advice
For landlords and businesses
We work for landlords and letting agents as well as homeowners. Resealing between tenancies is a simple way to keep a property in good order before the next move-in.
Failed sealant is one of the commonest items on a check-out report, and it’s easy to sort out between tenants. We can quote for more than one property at once.