West Sussex · England
External & façade joints in Pagham, West Sussex
External mastic for Pagham and the surrounding area: careful preparation, the right product and tidy work. Call for a quick quote.
- Hard, crazed mastic that has stopped moving
- Joints where the bead has come unstuck
- Joints pointed up with cement by mistake
How we handle external mastic in Pagham
Movement joints let brickwork, render and cladding expand and shrink without cracking. Its sealant has to flex with the building, season after season, and when it fails, the wall takes the strain and water finds a way in. If you’re dealing with panel joints letting water in and weeds or debris growing in open joints, we can put it right, whatever the surface.
Outside joints can only be sealed when they’re dry, so work in Pagham is booked around the forecast. Tell us about access to all sides of the building, including outbuildings and garages.
The work is covered for a year after we finish. If anything is not right with it, ring 0345 464 0079 or email us.
- Location
- Pagham (PO21)
- Wider area
- West Sussex
- Cover
- A year, on every job
- Quotes
- A clear price before any work starts
- Call
- 0345 464 0079
- Last updated
- 26 October 2026
Pagham questions
Can you help a landlord with a rental near Bognor Regis station?
Yes, we work for letting agents and landlords. You can call 0345 464 0079 or send us an email with the address and a few details, and we’ll give you a fixed price before we start.
Does living near the coast affect external mastic in Pagham?
Coastal homes put outside sealant through more weather than inland ones, so preparation and the right sealant matter all the more. Walls facing the sea are usually the first to need attention.
When will the joints need doing again?
That varies with the weather the wall faces, how much it moves and the sealant used. Sealant is a maintenance item, so check the joints once a year and renew it when it starts to fail.
What does external mastic cost?
It depends on the job, so we quote each one individually. To get one, ring 0345 464 0079 or email us with a short description of the job.
Is it OK to seal over old sealant?
No. New silicone will not bond to old silicone, and it traps any mould or water underneath. We remove it all first.
Can you match the colour of my brickwork?
There’s a good range of exterior colours, including greys, browns, whites and stone tones. We pick the one that suits your wall best so it doesn’t stand out.
What do you need from me for a quote?
Only a few details: the address or postcode, what’s wrong and any access issues. Then phone 0345 464 0079 or email us.
Can you quote for more than one area?
Yes. More than one area can go on one quote.
Honest limits
It helps to know what we cannot do too:
- Subsidence or other structural problems
- Loose or hollow render, which needs re-rendering
- Rising or penetrating damp from elsewhere in the wall
If in doubt, phone 0345 464 0079 or drop us an email and we’ll say what we think before booking.
Joints and surfaces we work on
- Concrete & block
- Render & cladding joints
- Copings & trims
- Façade panels
- Brickwork movement joints
- Joints between brick and frames
How to look after the new joints
How long the joints last depends on use and care. Here’s what we suggest:
- Deal with leaking gutters that soak the joints below
- Ask before painting over external sealant
- Act on the first splits you see
- Walk round the building once a year and look at the joints
Make sure anyone working on the wall later knows where the movement joints are. They must stay as flexible joints, never rendered or pointed over.
Water getting behind cladding or render can go unnoticed for a long time. When it finally shows inside, the joint may have been open for years.
External mastic in Pagham: local notes
Pagham is close to the coast, and homes near the sea take more wind-driven rain, with salt in the air closer to the shore. Both are hard on movement joints and outside wall joints, which can dry out and crack sooner where a building faces the weather. 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 site and facilities teams at buildings such as Rose Green Infant School, movement joints, cladding joints and gutters on larger buildings need the same care as a house’s. For landlords with property near Bognor Regis station, outside joints that have cracked can let damp into a rental, so check them between lets.
Pagham is about 3 miles south-west of Bognor Regis, in West Sussex. Wherever you are in the PO21 postcode area, we can carry out external mastic at your property. Pagham is one of 371 towns and villages in West Sussex we cover for external mastic. There’s also a page for Portsmouth, about 15 miles away.
We work across PO21 for external mastic and the streets around it. That includes homes and businesses on Swan Dene, Sea Lane and Well Road. Close by, we work in Nyetimber (1 mile north-east), Aldwick (2 miles north-east), Church Norton (2 miles south-west), Sidlesham (2 miles west) and South Mundham (2 miles north). We also work in nearby towns such as Worthing (15 miles east), Bognor Regis (3 miles north-east), Chichester (5 miles north), Selsey (3 miles south-west), Littlehampton (10 miles east) and Emsworth (10 miles north-west).
Landmarks near Pagham
Locally, jobs take us to homes and businesses close to The Lamb pub and Avisford and the streets around them. Pagham’s nearest station is Bognor Regis station, about 3.2 miles north-east of the centre. A little further out are Bognor Regis War Memorial Hospital (3.3 miles north-east) and Bognor Regis Museum (2.9 miles east).
What affects the cost of external mastic
Jobs vary more than people expect. What affects the quote:
- Working hours on commercial sites
- The size of the job
- How many areas need sealing
- Mould in or behind the old joints
Leaving a failed joint generally makes the job bigger, not smaller, because water and mould keep working on it. If you’re not sure whether it needs doing, ring 0345 464 0079 or drop us an email for an honest opinion and a quote.
What to tell us for a quote
What to tell us when you ask for a quote:
- Whether it has been sealed before
- Where the job is, and your postcode
- Access, such as stairs, a lift or height
- Photos by email, if that’s easy
It all starts with a short chat. Describe the problem, the location and the size of the job, and we’ll talk you through what we’d do. Whenever you are ready, ring 0345 464 0079 or email us.
What we’re called out for in Pagham
Buildings move more than people expect. Brickwork grows a little over the years, blockwork and concrete shrink, and all of it moves with heat and moisture. All of that ends up in the joint sealant.
Any of these means the joints need attention:
- Joints pointed up with cement by mistake
- Old sealant gone brittle and cracked
- Failed sealant between panels on a façade
- Moss and dirt in joints with no sealant left
For an older house near a landmark such as The Parish Church of St Thomas A Becket, the joints between older walls, newer extensions and the roofline need a sealant that can move.
What to look for in a quote
- Whether you can choose the colour
- What guarantee comes with the work
- Whether all the old sealant comes out first
- What product goes in the joint
Why deal with it now?
Water gets in through a failed movement joint and can run behind render or cladding. Resealing early keeps the job to the joint itself, rather than the wall around it. Around Pagham, older homes often have timber in their floors and frames, and water through a failed joint can rot timber if it’s left.
Homes and businesses are quoted the same way: the amount of work, how we reach it and what it needs. Call for a quick quote and we will explain what it covers.
Why book with us
- Trusted Arbo and Everbuild sealants
- Approved under the ARBOMaster scheme
- Sanitary silicone with an anti-fungal additive in wet areas
- White, clear, grey or another colour, product permitting
Read what affects the cost or what customers say.
How the job changes by 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. Their movement joints are sealed over backing rod with a flexible sealant.
How the visit works
On the day, we look over the joints with you first. Surfaces next to the work are protected before we start. Most jobs take a few hours for a handful of joints, longer for a whole elevation. Somewhere as small as Pagham, access is often the only tricky part. For outside work, also let us know about exposed walls and any outbuildings involved.
- First we look over the joints with you, agree which to renew and talk through access.
- The old mastic and anything lodged in the joint is removed.
- 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.
How to prepare
- Where the joints are inside, avoid wetting them before we arrive
- Tell us about access, such as stairs, a lift or high-level joints
- Mention if the joints have been sealed before
Get a quote
Call for a quick quote, or send an email if you’d rather. Describe what needs sealing and we will explain what’s involved.