West Sussex · England
New Build Mastic in South Bersted
Professional new build mastic in and around South Bersted, with every bit of old sealant taken out first and a 12-month guarantee.
- Frame joints opening as the plaster dries
- Gaps between new skirting and floors
- Plot mastic for developers ahead of handover
What we cannot put right
To be straight with you, there are a few things sealant won’t fix:
- Your warranty claim itself, which is between you and the builder
- Leaks from pipes, valves or wastes, which need a plumber
- Cracked trays, tiles or worktops
If in doubt, ring 0345 464 0079 or email us and we will say what we think before you book.
What we seal
- Show homes
- Skirting & floors
- Kitchens
- Bathrooms & en suites
- Windows & doors
- Plot handovers
How we handle new build mastic in South Bersted
Snagging sealant properly means taking the failed bead out completely. New silicone won’t bond to old silicone, so the joint is cut out, cleaned, dried and resealed. We work on bathrooms & en suites, plot handovers and skirting & floors, and common reasons people get in touch are joints pulling apart as timber shrinks and untidy sealant flagged on a snagging list.
If you’ve bought a new home in or near South Bersted, the first year or two is a good time to check the sealant. Gaps at skirtings, shower seals pulling away and missing mastic around frames are common snags.
We guarantee the work for a year. If something is not right with it in that time, tell us and we will put it right.
- Location
- South Bersted (PO21, PO22, BN14)
- Wider area
- West Sussex
- Cover
- One year on every job
- Quotes
- A clear quote up front
- Phone
- 0345 464 0079
- Last updated
- 26 October 2026
Aftercare tips
Looking after new joints is easy, and it makes a real difference:
- Check bath and shower seals every few months as the house settles
- Get a leaking seal dealt with straight away
- Raise failed sealant with the developer while you are covered
- Resist patching a failed seal with a tube from the DIY shop
Avoid standing on the rim of the bath or the edge of the tray. Report any movement in a bath or tray.
A seal that splits early is often a sign of movement. Have it resealed, and the tray or bath checked, before it gets worse.
Landlord and commercial work in South Bersted
We regularly work with letting and managing agents. Send the address, what’s needed and the access arrangements.
A neglected joint can let water reach the structure, which matters even more when someone else lives there. Keeping joints in good order is simple maintenance that we can handle for you.
Do you need new build mastic in South Bersted?
Sealant applied onto damp surfaces does not bond well. On a busy site, joints aren’t always given time to dry first.
People generally contact us after spotting something like this:
- Gaps behind new kitchen upstands
- Cracks appearing as a new home settles
- Beads laid onto grit and dust from the build
- Cracked caulk along new skirting
For new homes near Bognor Regis station, it’s worth checking the sealant early, while snags are still fresh.
Comparing quotes
- Who turns up on the day
- When the joint can take water or movement
- Are they insured?
- Whether the sealant suits the joint
New homes and floors in South Bersted
South Bersted is close to the coast. Plot mastic on new homes near the coast takes more weather than it would inland, so any gaps are best picked up early. Rainfall in the South East is lower than in much of the UK, yet outdoor joints still have to be sealed dry, so jobs are booked with the weather in mind.
Around South Bersted, as everywhere, new build mastic is only as good as the preparation behind it.
South Bersted is about 1 mile north-east of Bognor Regis, in West Sussex. Wherever you are in the PO21 postcode area, we cover new build mastic for homes and businesses. Our West Sussex coverage runs to 371 places, South Bersted among them. For nearby work, see our Portsmouth page, about 18 miles away.
We work across PO21, PO22 and BN14 for new build mastic. That includes homes and businesses on Ivy Lane, Hook Lane and Essex Road. Neighbouring places we cover for new build mastic include Bognor Regis (1 mile south-west), Felpham (1 mile east), Shripney (1 mile north), Aldwick (2 miles south-west) and Flansham (2 miles north-east). Within a short drive, we also cover Worthing (12 miles east), Chichester (6 miles north-west), Selsey (6 miles south-west), Littlehampton (6 miles east), Emsworth (12 miles west) and Rustington (7 miles east).
Near you in South Bersted
We work in homes and buildings around The Brooks Local Nature Reserve, The Regis School and The William Hardwicke pub, among other places. There’s a railway station in South Bersted itself: Bognor Regis station. Other landmarks nearby include Bognor Regis War Memorial Hospital (under half a mile south) and Bognor Regis Museum (0.8 miles south).
Your questions about new build mastic in South Bersted
Is South Bersted within the area you cover?
Yes, South Bersted is covered. 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 Bognor Regis station?
Yes, landlords and agents are among the people we work for, and several properties can go on one quote. Just phone 0345 464 0079 or send us an email with the address and what needs doing, and we’ll give you a clear price.
Can new sealant go on top of the old bead?
No. Over-sealing traps mould and water and soon fails. We remove every bit of the old bead before resealing.
Do you take on second-fix sealing for builders?
Yes. Plot mastic and second-fix sealing for developers is part of our work. Send us the plot schedule and we’ll quote.
Is there any odour?
That depends on the sealant. Some products have a noticeable smell, others very little.
Who should fix failed sealant in a new build?
Your builder, if you are still in their snagging or warranty period. After that, or if their repair keeps failing, we can do it and our work is guaranteed for a year.
Is it messy?
Not at all. The area is protected while we work and cleaned up afterwards.
Do I have to be there?
For indoor joints, yes, someone needs to let us in. Once we have agreed the job, you don’t need to watch us work.
Also in South Bersted
DIY sealant or a professional job?
Sealing over old silicone is the commonest DIY error. Silicone does not stick to old silicone, so it peels away and traps moisture behind it. Everything old must be removed first.
If you are 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 doesn’t work out, we can still put it right.
Different surfaces, different methods
Bathrooms and en suites
New-build bathrooms and en suites are where sealant fails most often. The old sealant comes out and anti-fungal sanitary silicone goes in after cleaning and priming.
Skirting and floors
Where the floor meets a bath panel or kitchen plinth, the joint keeps mop water out. They get a flexible, water-resistant sealant.
What we do, step by step
At the end, we look at the finished work together and tell you how long to leave it. The visit itself generally takes a few hours in a single home, depending on how much there is to do. Parking around South Bersted is generally easier than in a town centre, but mention any lanes, gates or long drives. If the job is outside, tell us about side access and how high the joints are.
- We look at why each joint failed, including any movement.
- Old sealant is cut out and the joints cleaned.
- We make sure the joints are dry and prime them if needed.
- Baths are filled with water, then the new sealant is applied.
- The finished joints are checked and the cure times given.
Preparing for the visit
- Keep children and pets away from the work area
- Try not to wet indoor joints just before the visit
- Clear items away from the joints we’re working on
Get a quote
Call for a quick quote, or send an email if you’d rather. Tell us about the joints that need doing and we will explain what’s involved before giving you a price.