West Sussex · England
New Build Mastic in Amberley
Our applicators work in Amberley on plot mastic for developers and snagging failed sealant in new homes. Old sealant removed completely, joints prepared properly and every job guaranteed for a year.
- Plot mastic for developers ahead of handover
- Internal frame sealant that has split
- Gaps behind new kitchen upstands
New build mastic for homes and businesses in Amberley
New homes move as they dry out. Timber shrinks, plaster dries and baths and trays bed down, and sealant applied in a hurry at handover can split. If you are dealing with cracked caulk along new skirting and leaking shower tray seals in a new home, we can help.
Older homes in small places like Amberley often have timber floors that move with the seasons, so skirting and threshold joints need a flexible sealant rather than a rigid filler.
All of our work is guaranteed for twelve months.
- Place
- Amberley (BN18)
- Wider area
- West Sussex
- Guarantee
- 12 months on all our work
- Quote
- A clear quote up front
- Phone
- 0345 464 0079
- Updated
- 26 October 2026
How to look after the new joints
Good habits help new joints last longer. Our tips:
- Don’t wait for the house to settle if water is getting through
- Report sealant problems to your builder during the snagging period
- Open a window or run the fan after bathing
- Wipe joints with warm soapy water
Photograph failed sealant before it’s redone and keep the builder’s replies. It helps if anything else comes up during the warranty period.
If a shower tray or bath seal splits in the first year, look for movement. Getting it resealed properly, and any movement checked, stops it recurring.
Why deal with it now?
Small cosmetic gaps can wait for the house to settle, but a leaking seal can’t. If you are unsure which you have, call 0345 464 0079 or drop us an email with photos and we’ll tell you. Where a wall is exposed, as many are in small places like Amberley, wind-driven rain gets into any failed joint, and damp in older walls is slow to dry out.
Every job is a little different, 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 will explain the quote if you ask.
Why us?
- An ARBOMaster approved applicator
- Anti-fungal sanitary silicone in wet areas
- Sealant colour chosen to suit
- Tidy, careful work
Amberley: your questions answered
Can you do new build mastic in Amberley?
Yes, Amberley is within the area we cover. We work across London and the South East. Just phone 0345 464 0079 or send us an email with a few details of the job.
Can you help a landlord with a rental near Amberley station?
Yes, we work for letting agents and landlords. You can phone 0345 464 0079 or send us an email with the address and a few details, and we’ll give you a fixed price before any work starts.
What do you put in the joint?
It depends on the joint: sanitary silicone where it gets wet, and sealants suited to movement or weather elsewhere. We use products from Arbo and Everbuild.
Do you take on second-fix sealing for builders?
Yes. We work through plots to your schedule ready for handover. Get in touch with the number of plots and the scope and we will quote.
Should I go to my builder first?
Report it to the builder first while you’re covered. Once that’s done, or if they will not put it right, we’ll cut it out and reseal it.
Why does sealant fail so quickly in new builds?
Cracking in the first couple of years is common as timber and plaster dry out. Rushed application on dusty surfaces makes it worse.
How long does the job take?
That depends on how much there is to do, but as a guide it takes a few hours in a single home. We’ll tell you when we quote.
Does someone need to be in?
That depends on where the joints are. For work indoors, someone needs to let us in, while outside work can sometimes be arranged differently.
How the job changes by surface
Plot handovers
Plot mastic is carried out to the developer’s schedule. Each joint is cleaned and primed where needed to keep callbacks down.
Skirting and floors
Floors and skirting move as the house dries and the heating runs. We use a flexible product rather than caulk in a colour to suit.
DIY versus a professional finish
Some sealant jobs are within reach of a careful DIYer, such as a straightforward joint indoors. Where it goes wrong is sealing over the old bead, working on a wet joint or overloading the gap.
Not every job suits DIY: work at height, external movement joints, fire-rated sealant and large areas need the right product, the right access and the right method.
New build mastic in Amberley: local notes
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.
If you’ve bought a new home near Amberley station, the sealant around baths, showers and frames is worth checking in the first year or two.
Amberley is about 7 miles north of Littlehampton, in West Sussex. Jobs in Amberley get the same care as everywhere else we work: the old material taken out, joints prepared properly and a 12-month guarantee. Our area takes in 371 places across West Sussex, from the larger towns to small villages. Our Brighton page covers work nearby (18 miles or so).
Here we cover the BN18 postcode area for new build mastic. Whether your property is on School Road, Turnpike Road and Hog Lane or anywhere close by, our applicators can take on the job. We also cover the places around Amberley: Cross Gate (1 mile north-east), Bury (1 mile west), Rackham (1 mile east), Watersfield (2 miles north-west) and West Burton (2 miles west). We also work in nearby towns such as Horsham (14 miles north-east), Worthing (8 miles south-east), Bognor Regis (10 miles south-west), Chichester (12 miles south-west), Littlehampton (7 miles south) and Shoreham-by-Sea (13 miles south-east).
Local landmarks in Amberley
We work in homes and buildings around Dorset House School and Parham Park. The nearest railway station is Amberley station, about 0.8 miles south-west of the centre. Nearby you will also find Amberley Castle (less than half a mile west) and Arundel and District Hospital (3.9 miles south). Green spaces nearby include Amberley Wild Brooks and Bignor Hill.
Common problems we fix in Amberley
New homes are full of moisture from plaster, screed and concrete, and it dries out over the first couple of years. Drying timber shrinks and pulls joints apart.
The problems people normally mention when they call include:
- Untidy sealant flagged on a snagging list
- Gaps behind new kitchen upstands
- Beads laid onto grit and dust from the build
- Frame joints opening as the plaster dries
Around Amberley, as everywhere, new build mastic is only as good as the preparation behind it.
Comparing quotes
- Whether the sealant suits the joint
- What guarantee comes with the work
- Who does the work, and how experienced they are
- When the joint can take water or movement
What affects the quote in Amberley
There’s no set price list, because jobs vary so much. The quote depends on:
- Working hours on commercial sites
- Whether old sealant or filler has to be cut out
- How easy the joints are to reach
- Mould in or behind the old joints
A failed joint rarely gets cheaper to fix by waiting, because water and mould keep working on it. If you’re unsure, phone 0345 464 0079 or drop us an email and we’ll give you an honest view and a quote.
What to tell us for a quote
You don’t need to know the technical terms. It helps if you can tell us:
- What the problem is, such as mould, gaps, leaks or cracking
- Pictures of the joints, sent by email
- If someone has resealed it before
- Access, such as stairs, a lift or height
The more we know about the job, the more useful the quote. Let us know the location, the problem and roughly how many joints, and email photos if that is easy.
What we do, step by step
We keep the work tidy and contained to the joints we are treating. The job usually takes a few hours for most snagging lists, longer for a run of plots, and we tell you how long to leave it before we go. Somewhere like Amberley needs a little journey planning: let us know about lanes, gates and parking. Everything for the job comes with us, so a second trip is avoided where possible.
- We start by going through the snagging items or plot schedule with you.
- Every bit of the old builder’s sealant is cut out, with no layer left behind.
- We clean out the dust and grit left from the build.
- We prime where needed and apply a sealant suited to each joint.
- Each bead is tooled and the cure times explained.
How to prepare
- For indoor joints, keep the area dry beforehand if you can
- Plan for the work area to be out of bounds to pets and children
- Tell us about any previous sealing or DIY attempts
Get a quote
Every job is quoted individually. Just call 0345 464 0079 or drop us an email with the details and send photos if you have them.