West Sussex · England
Old Shoreham New Build Mastic
Specialist new build mastic for Old Shoreham: the right sealant, proper preparation and a neat finish. Ask us for a quick quote.
- Cracks appearing as a new home settles
- Leaking shower tray seals in a new home
- Kitchen sealant that has pulled off the wall
When something else is needed
Before you book, it’s worth knowing the limits:
- Structural cracks in walls or ceilings
- Leaking fittings rather than failed sealant
- Your warranty claim itself, which is between you and the builder
If in doubt, call 0345 464 0079 or drop us an email and we’ll say what we think before you book.
Joints and surfaces we work on
- Show homes
- Kitchens
- Bathrooms & en suites
- Plot handovers
- Skirting & floors
- Windows & doors
How we handle new build mastic in Old Shoreham
We never seal over a failed new-build bead. New silicone will not bond to old silicone, so it all comes out before we clean, dry and reseal. If you are dealing with gaps between new skirting and floors and internal frame sealant that has split, we can put it right, on kitchens, show homes and plot handovers alike.
In a village or hamlet like Old Shoreham, new homes are more likely to be a barn conversion or a handful of houses than a big estate. Each still needs its sealant and floor joints finished properly.
You are covered for a year from the day we finish. If there’s a problem with it, please phone 0345 464 0079 or email us.
- Location
- Old Shoreham (BN43)
- Region
- West Sussex
- Guarantee
- A year, on every job
- Price
- A clear quote up front
- Telephone
- 0345 464 0079
- Last updated
- 26 October 2026
Keeping the joints in good condition
Once the sealant has cured, a few habits help it last:
- Open a window or run the fan after bathing
- Get a leaking seal dealt with straight away
- Wait for the cure time before using a resealed shower
- Watch for new gaps as the house dries out
Photograph failed sealant before it’s redone and keep the builder’s replies. It helps if anything else comes up during the warranty period.
Don’t let the snagging period run out with sealant problems unreported. Once it ends, the repair may be down to you.
New homes and floors in Old Shoreham
Old Shoreham is close to the coast. Plot mastic on new homes near the coast takes more weather than it would inland, so it’s worth checking at snagging. Rainfall in the South East is lower than in much of the UK, though outdoor sealant still has to go onto a dry joint, so the forecast decides the day.
In and around Old Shoreham, as anywhere, good new build mastic starts with a clean, dry, properly prepared joint.
Old Shoreham is about 1 mile west of Shoreham-by-Sea, in West Sussex. For new build mastic in and around Old Shoreham, it’s easy to get a quote: please call 0345 464 0079 or email us. We cover West Sussex from our Crawley base, Old Shoreham included. Across West Sussex, we cover 371 places, and Old Shoreham is one of them. Our Brighton page covers work nearby (7 miles or so).
Work in BN43 is quoted and booked the same way as anywhere else. If you’re just outside Old Shoreham, we cover Shoreham-by-Sea (1 mile east), Adur (1 mile north), Kingston by Sea (2 miles east), Southwick (2 miles east) and Castle Town (3 miles north). Within a short drive, we also cover Worthing (5 miles west), Haywards Heath (14 miles north-east), Burgess Hill (11 miles north-east), Littlehampton (11 miles west), Rustington (10 miles west) and Storrington (9 miles north-west).
What’s near Old Shoreham
Typical jobs here are in homes near The Sir Robert Woodard Academy and The Amsterdam pub, among other places. The closest station to Old Shoreham is Shoreham-By-Sea station, about 0.7 miles east of the centre. Nearby you’ll also find Southlands Hospital (1.4 miles east) and Old Castle (4.6 miles west). The countryside around Old Shoreham includes Lancing Ring and Adur Estuary RSPB Reserve.
How it works
Our applicators work methodically: protection first, then preparation, sealing and a tidy-up. Typically it takes a few hours in a single home. Somewhere as small as Old Shoreham, access is often the only tricky part. If the job is outside, mention outbuildings, exposed walls and how to reach them.
- First, the list of joints is agreed from your snagging sheet or plot schedule.
- The failed sealant is removed completely.
- 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.
Getting ready for the visit
- Mention any leaks or damp you’ve noticed
- Mention any sign-in or site rules at work premises
- For indoor joints, keep the area dry beforehand if you can
How to get a quote
We do not publish a price list, because every job is different. Instead, your job gets its own clear quote. To get started, call 0345 464 0079 or send us an email.
Advice
Why act early in Old Shoreham
A quick bead over the top of the old sealant can look fine at first, but it cannot bond to what’s underneath. A lasting seal starts with removing the old one completely. Older cottages and farmhouses around Old Shoreham can have timber floors and frames, where water from a failed joint can cause rot if it’s left.
What it costs depends on the size of the job, how hard the old material is to remove and access to the work. We give a clear quote before any work starts.
Why book with us
- A choice of colours where the product allows
- Approved under the ARBOMaster scheme
- Domestic, commercial and hotel work
- More than 20 years in sealant work
Read what affects the cost and what customers say.
Your questions about new build mastic in Old Shoreham
Will you come out to Old Shoreham?
Yes, smaller places are covered as well as towns. We work across London and the South East. Just mention lanes, gates or anything else about the route when you book.
I let a flat near Shoreham-By-Sea station. Can you help?
Yes, we work for landlords and agents. Just call 0345 464 0079 or email us and tell us about the property, and we’ll send you a clear quote.
Is it worth trying it myself?
It depends on the job. Work at height, movement joints, fire-rated gaps and large areas are best left to a professional, while a short indoor joint may be within reach.
How long before the joint can be used?
It depends on the product and the conditions. We tell you how long to leave it before we go.
Can you reseal over the builder’s sealant?
No. Sealing over old sealant looks fine for a few weeks, then lifts. We remove every bit of the old bead before resealing.
Do you remove the old sealant?
Yes, always, and completely. New silicone does not stick to old silicone, so the joint is cleaned back first.
How long does new build mastic take?
It depends on the size of the job, but as a guide it takes a few hours in a single home. We’ll tell you when we quote.
Should I go to my builder first?
If you are still within the builder’s snagging or warranty period, report it to them first. If it isn’t sorted, or keeps failing, get in touch with us.
Also near Old Shoreham
Other services in Old Shoreham
How we quote for new build mastic
Every job gets its own quote. This is what makes a difference:
- Whether old sealant or filler has to be cut out
- How much there is to do
- The number of rooms or windows
- Whether there’s mould to deal with
A failed joint rarely gets cheaper to fix by waiting, because water and mould keep working on it. If you are unsure, call 0345 464 0079 or send us an email for an honest opinion and a quote.
Helping us quote
What to tell us when you ask for a quote:
- How many joints, rooms or windows are involved
- What’s wrong with the joints now
- How we’d reach the joints
- Where the property is
A good description makes for an accurate quote. Tell us where the job is, what’s wrong and how much there is, and email photos if that is easy.
What we are called out for in Old Shoreham
Fresh sealant can be knocked or cut by trades finishing off. If it’s disturbed before curing, the joint can be left weak and it shows once the home is in use.
These are the problems we are asked about most:
- Joints pulling apart as timber shrinks
- Shower seals failing in the first year or two
- Worktop and upstand sealant coming away
- Frame joints opening as the plaster dries
If you’ve bought a new home near Shoreham-By-Sea station, the sealant around baths, showers and frames is worth checking in the first year or two.
What to look for in a quote
- Whether all the old sealant comes out first
- What the cure time is
- Are they insured?
- Who turns up on the day
DIY sealant or a professional job?
A DIY attempt does not rule out a professional job. We cut it out and start again, so just mention it when you contact us.
The biggest DIY mistake is sealing over old sealant. New silicone won’t bond to old, so it peels away and traps moisture behind it. All the old material has to come out first.