West Sussex · England
New Build Mastic in Barnham
New build mastic across Barnham and nearby, with old sealant always removed completely and a one-year guarantee.
- Second-fix sealing on new plots
- Leaking shower tray seals in a new home
- Sealant that never bonded to the surface
New build mastic in Barnham
We never seal over a failed new-build bead. New silicone won’t bond to old silicone, so the joint is cut out, cleaned, dried and resealed. Typical jobs include smeared, uneven beads picked up at snagging and kitchen sealant that has pulled off the wall, across plot handovers, windows & doors and bathrooms & en suites.
Older homes in small places like Barnham often have timber floors that move with the seasons, so skirting and threshold joints need a flexible sealant rather than a rigid filler.
The work is covered for a year after we finish. If anything is not right with it, phone 0345 464 0079 or send us an email.
- Where
- Barnham (PO22)
- Region
- West Sussex
- Cover
- A year, on every job
- Price
- A clear quote up front
- Call
- 0345 464 0079
- Page updated
- 26 October 2026
New build mastic in Barnham: local notes
Barnham is close to the coast. New homes near the sea put their outside mastic to work from day one, so any gaps are best picked up early. 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.
Around Barnham, as everywhere, new build mastic is only as good as the preparation behind it. If you’ve bought a new home near Barnham station, the sealant around baths, showers and frames is worth checking in the first year or two.
Barnham is about 4 miles north-east of Bognor Regis, in West Sussex. Whether you are in the middle of Barnham or further out, new build mastic is available for homes and businesses alike. Across West Sussex, we cover 371 places, and Barnham is one of them. You can also see our page for Portsmouth, roughly 19 miles from Barnham.
Postcode districts we cover here for new build mastic: PO22. New build mastic is available to properties on Garden Crescent, Dollery Road and Goodacres and the roads around them. Nearby, we also carry out new build mastic in West Barnham (1 mile north-west), Walberton (1 mile north-east), Yapton (1 mile south-east), Eastergate (1 mile north-west) and Lidsey (1 mile south-west). Larger places within reach include Worthing (10 miles east), Bognor Regis (4 miles south-west), Chichester (6 miles west), Selsey (9 miles south-west), Littlehampton (5 miles east) and Lancing (14 miles east).
Landmarks near Barnham
Typical jobs here are in homes near The Murrell Arms and St Philip Howard Catholic High School, among other places. There’s a railway station in Barnham itself: Barnham station. A little further out are Bognor Regis War Memorial Hospital (3.2 miles south-west) and Tote Copse Castle (2.5 miles west). Open spaces near Barnham include WWT Arundel.
Quotes for new build mastic in Barnham
Some jobs are bigger than they look, and some smaller. What affects the quote:
- Access and height
- The number and length of the joints
- The type of sealant required
- Whether there’s mould to deal with
Every job is a little different, so each one gets its own quote. Size, access and the product the joint needs all play a part.
What to tell us for a quote
The more you tell us, the more accurate the quote. When you ask for a quote, tell us:
- The rough size of the job
- Photos by email, if that is easy
- Whether it’s a home or a business
- How we’d reach the joints
Every job is quoted individually, so the first step is telling us about yours. Just ring 0345 464 0079 or send us an email with the details and send pictures if you have them.
Towns and villages near Barnham
Also in Barnham
Surface by surface
Show homes
In a show home, the sealant is on display. Every bead is neat and coloured to suit the room.
Skirting and floors
New homes often develop a gap between skirting and floor. A flexible sealant closes it without cracking like caulk.
Honest limits
A few problems are outside what sealant work can do:
- Leaks from pipes, valves or wastes, which need a plumber
- Cracking that points to a structural problem
- Deciding who is responsible under a builder’s warranty
Not sure which it is? You can ring 0345 464 0079 or drop us an email and we will tell you honestly.
Where we work in Barnham
- Show homes
- Plot handovers
- Skirting & floors
- Windows & doors
- Bathrooms & en suites
- Kitchens
Keeping the joints in good condition
Once the sealant has cured, a few habits help it last:
- Raise failed sealant with the developer while you’re covered
- Use the extractor fan every time you shower
- Avoid scourers and strong chemicals on sealant
- Watch for new gaps as the house dries out
Keep an eye on the joints over the first couple of years. Small gaps can appear as the house dries.
Mould takes hold quickly in sealant that has gaps or lifted edges. Resealing before mould gets in saves a harder job later.
Common questions in Barnham
I let a flat near Barnham station. Can you help?
Yes, rental work is part of what we do. Just phone 0345 464 0079 or email us and tell us about the property, and we’ll give you a clear price.
Do you cover smaller places like Barnham?
Yes, we do. Our work covers London and the South East, from towns to the smallest places. The journey is planned ahead, so it helps to know about access.
Do I have to be there?
That depends on where the joints are. For work indoors, someone needs to let us in, and for outside work we’ll agree access with you when we book.
What sealant do you use?
The product depends on the job: anti-fungal sanitary silicone in wet areas, and other sealants where joints move or face the weather. We use products from Arbo and Everbuild.
How much does new build mastic cost in Barnham?
Every job is different, so each one gets its own quote. For a quick quote, phone 0345 464 0079 or email us with a short description of the job.
Are you fully insured?
Yes. We are fully insured, and we’ve been doing sealant work for more than 20 years.
Do you work for developers?
Yes. We work through plots to your schedule ready for handover. Tell us the plots and the joints involved for a clear quote.
How long does the job take?
That depends on the amount of work, but most jobs take a few hours in a single home. We’ll tell you when we quote.
How it works
On the day, there’s very little for you to do. Point us to the joints and we will get on with it. The job generally takes a few hours in a single home from start to finish. For a village or hamlet like Barnham, the journey is planned in advance: tell us about narrow lanes, gates, long drives and where we can park. We bring what the job needs, so it can be finished in one trip where possible.
- We go through the snagging list or plot schedule and agree the joints to do.
- Failed or untidy sealant is cut out completely.
- Surfaces are cleaned of building dust and primed where needed.
- New sealant suited to each joint is applied and tooled neatly.
- We check every joint and tell you how long each needs to cure.
Before we arrive
- Keep children and pets away from the work area
- Tell us if parking is tricky
- Tell us about any previous sealing or DIY attempts
Get a quote
For a quick quote, get us on the phone, or email us if that’s easier. Describe what needs sealing and we’ll explain what’s involved and give you a clear quote.
Read more
For landlords and businesses
We also work for businesses, from offices to washrooms and kitchens. For commercial premises, we can talk through working times when we quote.
Mouldy or split sealant often shows up at the end of a tenancy, and it’s easy to sort out between tenants. Several properties can be quoted together.
DIY sealant or a professional job?
Not every job suits DIY: work at height, external movement joints, fire-rated sealant and large areas call for the right materials, safe access and experience.
Overfilling a joint is a classic DIY mistake. A heavy bead looks messy and copes badly with movement, and the joint depth matters as much as the finish.