East Sussex · England
New Build Mastic in Ninfield
Plot mastic for developers and snagging failed sealant in new homes in Ninfield, with a one-year guarantee on every job. Call for a quick quote.
- Leaking shower tray seals in a new home
- Skirting joints opening in the first winter
- Smeared, uneven beads picked up at snagging
DIY versus a professional finish
Overfilling a joint is a classic DIY mistake. A thick, smeared bead looks untidy and does not move well, and the joint depth matters as much as the finish.
What a professional job adds is preparation and the right product. We take joints back to clean, dry surfaces, and the sealant is matched to the joint and its conditions, and the work is guaranteed for a year.
How we handle new build mastic in Ninfield
A new house keeps drying out and settling for its first couple of years. Timber dries and shrinks, and baths and trays settle, and sealant applied in a hurry at handover can split. If you are dealing with gaps opening as the house dries out and settles and leaking shower tray seals in a new home, we can help, on windows & doors, show homes and kitchens alike.
Somewhere as small as Ninfield, new homes tend to be conversions, self-builds or a few houses rather than an estate. Every one needs its sealant and floor joints done properly, whatever the size of the site.
You are covered for a year from the day we finish. If there’s a problem with it, please ring 0345 464 0079 or drop us an email.
- Where
- Ninfield (TN33)
- Wider area
- East Sussex
- Cover
- 12 months on all our work
- Quotes
- Quoted before any work starts
- Phone
- 0345 464 0079
- Page updated
- 26 October 2026
How it works
When we arrive, we look over the joints with you first, so you know exactly what we’re doing. Surfaces next to the work are protected before work begins. The work usually takes anything from a few hours to several days, depending on the number of plots. Somewhere as small as Ninfield, access is often the only tricky part. If the job is outside, mention outbuildings, exposed walls and how to reach them.
- We start by agreeing which joints are on the list, from the snagging sheet or plot schedule.
- The old bead comes out in full, with no layer left behind.
- We clean off dust from the build and prime the surfaces where the product needs it.
- We apply a sealant that suits each joint and tool it to a neat finish.
- Finally, each room is checked and you are given the cure time.
Preparing for the visit
- Tell us about any previous sealing or DIY attempts
- Tell us about any water getting in
- Mention any sign-in or site rules at work premises
Getting a quote
For a quick quote, get us on the phone, or email us if that is easier. Describe what needs sealing and we’ll talk you through the work.
Read more
What happens if it’s left?
Sealant done properly at handover means fewer callbacks. Snagging visits for failed sealant cost time on every plot, and they’re avoidable with good preparation. Around Ninfield, older homes often have timber in their floors and frames, where water from a failed joint can cause rot if it’s left.
What it costs depends on the amount of work, how much old material has to come out and access to the work. You’ll have a clear quote before any work starts, so you know where you stand.
Why book with us
- Domestic, commercial and hotel work
- Neat joints and a tidy finish
- One-year guarantee on every job
- A sealant colour to suit the surroundings
Read our cost guide or what customers say.
What else we do in Ninfield
How to look after the new joints
Good habits help new joints last longer. A few tips:
- Wipe joints with warm soapy water
- Keep photos and emails about snagging items
- Do not wait for the house to settle if water is getting through
- Ventilate bathrooms well, especially in the first year
Watch the joints as the house settles. Hairline gaps can open as timber and plaster dry, and they’re simple to reseal once movement has slowed.
Early snagging is easier snagging. Small faults turn into leaks if left over time.
Ninfield questions
Is Ninfield in your area for new build mastic?
Yes, Ninfield is within the area we cover. We work across London and the South East. Just call 0345 464 0079 or email us with a few details of the job, and we’ll give you a clear quote.
Is Ninfield within the area you cover?
Yes, we do. Our work covers London and the South East, and smaller places are part of that. The journey is planned ahead, so it helps to know about access.
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 is not sorted, or keeps failing, get in touch with us.
Is there a guarantee?
Yes. Every job comes with a 12-month guarantee.
Do you hold any approvals?
Yes. Mr Mastic is an ARBOMaster approved applicator.
How long does the job take?
It depends on the size of the job, but most jobs take anything from a few hours to several days, depending on the number of plots. We’ll tell you when we quote.
What information do you need?
Only a few details: where it is, what you’ve noticed and how we reach it. After that, simply phone 0345 464 0079 or drop us an email.
What do you put in the joint?
The product depends on the job: sanitary silicone where it gets wet, and sealants suited to movement or weather elsewhere. Brands we use include Arbo and Everbuild.
Do you need new build mastic in Ninfield?
When the heating goes on in the first winter, the house dries fast. Skirting, frames and worktops pull away slightly and cracked sealant shows up.
These are the problems we’re asked about most:
- Smeared, uneven beads picked up at snagging
- Plot mastic for developers ahead of handover
- Shower seals failing in the first year or two
- Worktop and upstand sealant coming away
For new homes near Crowhurst station, it’s worth checking the sealant early, while snags are still fresh.
What your quote should include
- Which sealant they’ll use, and why
- What happens if they find a problem under the old sealant
- What insurance they hold
- Whether you can choose the colour
For landlords and businesses
If you manage several properties in or around Ninfield, several properties can be quoted together. Send us the addresses and the work at each, and pictures by email help.
We also work for businesses, from offices to washrooms and kitchens. On commercial sites, working times can be discussed when we quote.
Surface by surface
Skirting and floors
Floors and skirting move as the house dries and the heating runs. Caulk cracks; a flexible sealant moves with it.
Plot handovers
Developers can send the plot schedule and specification. We seal bathrooms, kitchens, frames and floors as agreed.
New build mastic around Ninfield
London and the South East are among the drier parts of the UK, though outdoor sealant still has to go onto a dry joint, so the forecast decides the day.
Around Ninfield, as everywhere, new build mastic is only as good as the preparation behind it.
Ninfield is about 3 miles north-west of Bexhill-on-Sea, in East Sussex. From the centre of Ninfield to the outskirts, we cover new build mastic for every kind of property, from flats and houses to offices and hotels. Our area takes in 289 places across East Sussex, large and small. You can also see our page for Brighton, about 24 miles away.
All of TN33 is within our area for new build mastic, from the main roads to the quietest streets. If you need new build mastic at a property on High Street, Moons Hill and The Green or anywhere close by, we can help. Main roads around Ninfield include the B2095, which makes travel easy. Other places close to Ninfield include Russell's Green (1 mile south), Hooe Common (1 mile south), Lunsford's Cross (1 mile south-east), Catsfield (1 mile north-east) and Watermill (2 miles south-east). Larger places within reach include Eastbourne (9 miles south-west), Hastings (6 miles east), Bexhill-on-Sea (3 miles south-east), Hailsham (7 miles west), St Leonards (6 miles east) and Uckfield (15 miles west).
Near you in Ninfield
In Ninfield, that means homes and buildings near Ashburnham Park and the streets around them. The closest station to Ninfield is Crowhurst station, roughly 3.5 miles east. A little further out are Bexhill Hospital (3.5 miles south-east) and Herstmonceux Castle (3.8 miles west). Green spaces nearby include Senlac Hill and Gillham Wood.