East Sussex · England
New-build mastic & snagging in South Street, East Sussex
New-build sealant joints in South Street need attention? We cut out the old, prepare the joints and apply the right sealant.
- Beads laid onto grit and dust from the build
- Shower seals failing in the first year or two
- Gaps between new skirting and floors
New build mastic in South Street
Across South Street, we work for both new-home owners and the builders handing those homes over. Whether it’s one en suite or a run of plots, the method is the same: cut out, clean, prime where needed and reseal neatly. We work on skirting & floors, kitchens and plot handovers, and people most often call us about cracks appearing as a new home settles and frame joints opening as the plaster dries.
In a village or hamlet like South Street, 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.
A one-year guarantee comes with the work, just as it does everywhere we cover.
- Location
- South Street (BN8)
- Wider area
- East Sussex
- Cover
- 12 months on all our work
- Quote
- Quoted before any work starts
- Phone
- 0345 464 0079
- Page updated
- 26 October 2026
New homes and floors in South Street
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.
For new homes near Plumpton station, it’s worth checking the sealant early, while snags are still fresh.
South Street is about 5 miles east of Burgess Hill, in East Sussex. Homes, rented property, offices and hotels in South Street can book us for new build mastic, old or new, large or small. Every job comes with our one-year guarantee. Our area takes in 289 places across East Sussex, large and small. You can also see our page for Brighton, roughly 9 miles from South Street.
Jobs for new build mastic in BN8 is quoted and booked the same way as anywhere else. We cover properties on Green Lane, Markstakes Corner and St James Walk. If you’re just outside South Street, we cover South Chailey (1 mile south), Chailey (1 mile north-east), North Chailey (2 miles north), Chiltington (2 miles south) and Plumpton Green (2 miles south-west). Further out, we also cover Seaford (13 miles south-east), Lewes (5 miles south), Hailsham (13 miles south-east), Crowborough (11 miles north-east), Uckfield (5 miles east) and Newhaven (11 miles south).
Around South Street
Locally, jobs take us to homes and businesses close to The Five Bells Inn and Chailey St Peter's Church of England Primary School. South Street’s nearest station is Plumpton station, about 2.2 miles south-west of the centre. Nearby you will also find Princess Royal Hospital (4.3 miles north-west). Not far away are Blackcap and Malling Down.
What we are called out for in South Street
Sealant applied onto damp surfaces does not bond well. Site programmes don’t always leave time for joints to dry before the sealant goes on.
These are the problems we are asked about most:
- Gaps behind new kitchen upstands
- Internal frame sealant that has split
- Cracks appearing as a new home settles
- Smeared, uneven beads picked up at snagging
In and around South Street, as anywhere, good new build mastic starts with a clean, dry, properly prepared joint.
Before you book anyone
- Whether they seal over old material or remove it
- What product goes in the joint
- How much experience the applicator has
- How the surfaces are prepared before sealing
Also near South Street
Other services in South Street
Landlord and commercial work in South Street
Water getting past a failed joint can damage the building, which matters even more when someone else lives there. Keeping joints in good order is simple maintenance that we can handle for you.
For anyone letting property in or around South Street, jobs at different addresses can go on one quote. Send us the addresses and the work at each, and photos by email help.
FAQs for South Street
Can you do new build mastic in South Street?
Yes, South Street is within the area we cover. Our work covers London and the South East. Just call 0345 464 0079 or send us an email with a few details of the job.
I let a flat near Plumpton station. Can you help?
Yes. We work for landlords and agents as well as homeowners. Just phone 0345 464 0079 or drop us an email with the address and what needs doing, and we will send you a clear quote.
Can you match the sealant colour to my new kitchen or bathroom?
The colour is chosen to suit the tiles, worktop or frame. Tell us what you’d like when you get a quote.
Why has my new-build shower seal failed already?
It’s common, and there are normally two reasons: movement as the house dries and settles, and sealant laid onto dust without primer. Cutting it out and resealing properly fixes both.
Is the work guaranteed?
Yes, for a year. If anything isn’t right with the work within the year, let us know and we will sort it.
Do you work through snagging lists?
Yes. We often work straight from a snagging list. We will go through the sealant items and agree what we’ll do.
Should I go to my builder first?
Report it to the builder first while you’re covered. Once that’s done, or if they won’t put it right, we can reseal it properly.
When is the sealant fully cured?
Cure times vary by product. Before we leave, we’ll tell you the cure time.
Should I try it myself first?
If you do try it yourself, take your time over the preparation: remove every trace of old sealant, clean and dry the joint, and follow the product’s cure time. If it does not work out, we can still put it right.
What a professional job adds is preparation and the right product. We take joints back to clean, dry surfaces, and the sealant is chosen for how the joint moves and where it is, and the work is guaranteed for a year.
Different surfaces, different methods
Kitchens
Worktop, upstand and sink joints in new kitchens often get a hurried bead. We take it out and reseal neatly, colour-matched where it shows.
Skirting and floors
Where the floor meets a bath panel or kitchen plinth, the joint keeps mop water out. We seal them with a sealant suited to wet areas.
What affects the quote in South Street
Some jobs are bigger than they look, and some smaller. The main factors:
- How many areas need sealing
- When we can work, for business premises
- Any mould that needs treating
- The number and length of the joints
There are no prices on our website, because each job is priced on what it involves. Call for a quick quote.
What we need to know
To help us quote quickly, let us know:
- If it’s domestic, commercial or a hotel
- How many joints, rooms or windows are involved
- How we’d reach the joints
- Any previous sealing or DIY work
For a quick quote, get us on the phone, or email us if that’s easier. Tell us about the joints that need doing and we will talk you through the work before giving you a price.
What we do, step by step
All our tools and materials come with us in the van, so you don’t need to buy or prepare anything. After a quick look at the joints together, the area is protected and the work begins. It normally takes a few hours in a single home. Somewhere as small as South Street, access is often the only tricky part. If the job is outside, mention outbuildings, exposed walls and how to reach them.
- We start by going through the snagging items or plot schedule with you.
- The failed sealant is removed completely, 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.
Preparing for the visit
- Let us know about parking restrictions
- Mention if the joints have been sealed before
- Clear items away from the joints we are working on
Get a quote
Asking for a quote is easy: tell us what needs doing and where. A few photos by email make the job easier to understand, and we’ll come back to you with a quote.
Read more
Keeping the joints in good condition
How long the joints last depends on use and care. Here’s what we suggest:
- Avoid running a DIY bead over the old one
- Clean sealant with mild detergent, not abrasives
- Don’t wait for the house to settle if water is getting through
- Wait for the cure time before using a resealed shower
Leave the sealant for the cure time we give you before showering or bathing. Most silicones need around a day before water reaches them.
A failed seal in a new home lets water into joists, plasterboard and ceilings. Early resealing keeps the job small.