East Sussex · England
Dukes Green New Build Mastic
Plot mastic for developers and snagging failed sealant in new homes for homes and businesses in Dukes Green and across East Sussex. ARBOMaster approved applicators, fully insured, with a one-year guarantee.
- Shower seals failing in the first year or two
- Plot mastic for developers ahead of handover
- Internal frame sealant that has split
New build mastic in Dukes Green, done properly
We work in new homes and on new-build sites across Dukes Green. One shower or a whole phase of plots, the method doesn’t change: cut out, clean, prime where needed and reseal neatly. We work on plot handovers, skirting & floors and windows & doors, and common reasons people get in touch are kitchen sealant that has pulled off the wall and untidy sealant flagged on a snagging list.
Around Dukes Green, older homes often have timber floors that move through the year, so skirting and threshold joints need a flexible sealant rather than a rigid filler.
Our work is backed for twelve months.

- Location
- Dukes Green (BN26)
- Wider area
- East Sussex
- Guarantee
- One year on every job
- Price
- A clear quote up front
- Phone
- 0345 464 0079
- Last updated
- 26 October 2026
Why it’s worth doing now in Dukes Green
It often makes sense to do all the sealant items on a snagging list together. It’s one visit, one quote and one set of cure times. Around Dukes Green, older homes often have timber in their floors and frames, where water from a failed joint can cause rot if it’s left.
A few things move the cost up or down: the old material and how easily it comes out, whether mould needs treating, and whether we need extra access for height. Your quote takes all of that into account.
Why Dukes Green customers choose us
- 20+ years of sealant experience
- Quality sealants from Arbo and Everbuild
- 12-month guarantee on every job
- Colour agreed with you before any work starts
See our cost guide or our reviews.
Work for landlords, hotels and businesses
In hotels, rooms out of use cost money, so the work can be planned room by room. Hotel work is part of what we do, alongside homes and businesses.
Landlords and agents in Dukes Green can book us as well as homeowners. Resealing between tenancies is a simple way to keep a property in good order before the next move-in.
Surface by surface
Plot handovers
Taking time over preparation reduces return visits. We clean out building dust before sealing.
Kitchens
Beside the sink, the joint takes water every day. We use a sealant suited to kitchens suited to the job.
When to call us in Dukes Green
Once people move in, baths and trays take weight and bed down. If a bath wasn’t filled when it was sealed, the bead is stretched the first time it’s used and can tear.
Keep an eye out for these signs:
- Sealant work across a run of new homes
- Sealant that never bonded to the surface
- Smeared, uneven beads picked up at snagging
- Kitchen sealant that has pulled off the wall
In and around Dukes Green, as anywhere, good new build mastic starts with a clean, dry, properly prepared joint.
What your quote should include
- Which sealant they’ll use, and why
- How the joint is cleaned and prepared
- Whether VAT is included
- How the colour is chosen
DIY versus a professional finish
Some sealant jobs are within reach of a careful DIYer, like a short, easy-to-reach joint indoors. Where it goes wrong is sealing over the old bead, working on a wet joint or overloading the gap.
Some jobs are best left to a professional: high-level joints, fire-rated gaps, external movement joints and big jobs call for the right materials, safe access and experience.
What happens on the day
At the end, we look at the finished work together. The visit itself generally takes a few hours for most snagging lists, longer for a run of plots, depending on the amount of work. In a small place like Dukes Green, access is generally the main thing to plan. For outside work, also let us know about exposed walls and any outbuildings involved.
- We start by agreeing which joints are on the list, from the snagging sheet or plot schedule.
- Failed or untidy sealant is cut out completely.
- Surfaces are cleaned of building dust and primed where needed.
- We apply a sealant that suits each joint and tool it to a neat finish.
- Finally, each room is checked and you’re given the cure time.
Getting ready for the visit
- On commercial sites, let us know about site rules
- Try not to wet indoor joints just before the visit
- Mention if the joints have been sealed before
How to get a quote
Getting a quote is simple: let us know what needs doing and where and its rough size. Photos by email help us understand the job, and we’ll take it from there.
Read more
Towns and villages near Dukes Green
Also in Dukes Green
Dukes Green questions
Can you do new build mastic in Dukes Green?
Yes. We work across London and the South East, and Dukes Green is part of that. Just ring 0345 464 0079 or email us with a few details of the job, and we’ll give you a clear price.
Will you come out to Dukes Green?
Yes, Dukes Green is covered. We work across London and the South East, and smaller places are part of that. The journey is planned ahead, so it helps to know about access.
Do you work for developers?
Yes. We seal plots to the developer’s programme, room by room. Tell us the plots and the joints involved for a clear quote.
Should I try DIY first?
Sometimes. The key is preparation: remove all the old material and work on a clean, dry joint. We can always put it right if it fails.
Is it worth resealing while the house is still settling?
It depends on whether water is getting through. A leaking shower or bath seal should be redone right away, but cosmetic gaps can wait for movement to slow.
What should I tell you?
The location, the problem and the rough size of the job. Photos by email help too.
Can landlords and businesses book you?
Yes, often. Several properties can be quoted together, and between tenancies is a good time for the work.
How long does new build mastic take?
As a guide, most jobs take a few hours in a single home. Bigger jobs take longer, and we will say how long yours will take.
How we quote for new build mastic
The quote reflects the job in front of us. We look at:
- The product the joint needs
- The number of rooms or windows
- Working hours on commercial sites
- The number and length of the joints
Combining jobs into one visit generally makes better use of the time than several visits, so tell us about everything that needs sealing. We will give you a clear price for the lot.
What we need to know
A few details help us give you an accurate quote. When you ask for a quote, tell us:
- Roughly how big the job is
- A few photos by email, if you can
- Any access issues, like height or stairs
- The type of property
We quote each job on its own, so the first step is telling us about yours. Simply phone 0345 464 0079 or drop us an email and describe the job, and photos are welcome.
New build mastic around Dukes Green
Dukes Green is within about 3 miles of the coast. New homes near the sea put their outside mastic to work from day one, so it’s worth checking at snagging. Compared with the north and west, the South East gets less rain, but outside sealant still needs a dry, clean surface, so outdoor work is planned around the forecast.
For new homes near Berwick (Sussex) station, it’s worth checking the sealant early, while snags are still fresh.
Dukes Green is about 3 miles north-east of Seaford, in East Sussex. Whether you are in the middle of Dukes Green or further out, new build mastic is available for homes and businesses alike. Our area takes in 289 places across East Sussex, from the larger towns to small villages. Brighton is on our list too, about 13 miles from Dukes Green.
Jobs for new build mastic in BN26 is quoted and booked the same way as anywhere else. Neighbouring places we cover for new build mastic include Lullington (1 mile north-east), Alfriston (1 mile north), Winton (1 mile north), Milton Street (1 mile north-east) and Alciston (2 miles north). Larger places within reach include Eastbourne (6 miles east), Bexhill-on-Sea (14 miles east), Seaford (3 miles south-west), Lewes (8 miles north-west), Hailsham (6 miles north-east) and Uckfield (12 miles north).
Local landmarks in Dukes Green
Around Dukes Green, our work takes us to homes and buildings near Dean's Place Hotel. The closest station to Dukes Green is Berwick (Sussex) station, roughly 2.8 miles north. Well-known places in the area include Chailey Heritage Marine Hospital (3.8 miles west) and Arlington Castle (1.2 miles north-east). For a walk, there’s Firle Beacon.
