East Sussex · England
New-build mastic & snagging in Rusher's Cross, East Sussex
Plot mastic for developers and snagging failed sealant in new homes for homeowners, landlords and businesses in Rusher's Cross. Fully insured, ARBOMaster approved and guaranteed for a year.
- Gaps between new skirting and floors
- Leaking shower tray seals in a new home
- Sealant work across a run of new homes
Should I try it myself first?
What a professional job adds is preparation and the right product. Joints are cleaned back to sound surfaces and dried, and the sealant is chosen for how the joint moves and where it is.
A careful DIYer can reseal a simple joint, such as a straightforward joint indoors. The common mistakes are sealing over old sealant, sealing a damp joint and using far too much.
How we handle new build mastic in Rusher's Cross
If your new home has a leaking shower seal, open skirting joints or untidy sealant, we can help. If you’re still within the builder’s snagging or warranty period, tell them first. We’re often asked to deal with sealant applied over dusty or wet surfaces and gaps opening as the house dries out and settles, on skirting & floors, kitchens and windows & doors.
Older homes in small places like Rusher's Cross often have timber floors that move with the seasons, so skirting and threshold joints need a flexible sealant rather than a rigid filler.
We guarantee the work for a year. If something isn’t right with it in that time, tell us and we will put it right.

- Where
- Rusher's Cross (TN20)
- Region
- East Sussex
- Cover
- 12 months on all our work
- Quote
- A clear quote up front
- Phone
- 0345 464 0079
- Page updated
- 26 October 2026
What affects the cost of new build mastic
The quote reflects the job in front of us. We take into account:
- The size of the job
- Whether the work is at height
- Any mould that needs treating
- When we can work, for business premises
There are no prices on our website, because the cost depends so much on the job itself. Call for a quick quote and we’ll talk you through it.
Asking for a quote
You do not need to know the technical terms. It helps if you can tell us:
- Roughly how big the job is
- The problem you’ve noticed
- If it’s domestic, commercial or a hotel
- How we’d reach the joints
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 add photos by email if you can.
Surface by surface
Windows and doors
The gap between a new frame and its plaster reveal often opens up. We remove cracked sealant and apply a flexible one that suits the frame.
Kitchens
Worktops in new homes can move slightly as the house dries, opening gaps behind the upstand. A fresh flexible bead closes them.
New homes and floors in Rusher's Cross
The South East is one of the drier parts 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 Wadhurst station, the sealant around baths, showers and frames is worth checking in the first year or two. In and around Rusher's Cross, as anywhere, good new build mastic starts with a clean, dry, properly prepared joint.
Rusher's Cross is about 5 miles east of Crowborough, in East Sussex. If you need new build mastic in Rusher's Cross, please call 0345 464 0079 or drop us an email for a quick quote. We’re based in Crawley and cover East Sussex, Rusher's Cross included. Rusher's Cross is one of 289 towns and villages in East Sussex we cover for new build mastic. For nearby work, see our Crawley page (21 miles or so).
We work across TN20 for new build mastic and the streets around it. Nearby, we also carry out new build mastic in Tidebrook (1 mile north-east), Coggins Mill (1 mile south-west), Mayfield (2 miles south-west), Mark Cross (2 miles north-west) and Argos Hill (2 miles west). Further out, we also cover Bexhill-on-Sea (15 miles south-east), Hailsham (12 miles south), Crowborough (5 miles west), Uckfield (10 miles south-west), Polegate (15 miles south) and Heathfield (5 miles south).
What’s near Rusher's Cross
In Rusher's Cross, that means homes and buildings near Wadhurst Park and the streets around them. The closest station to Rusher's Cross is Wadhurst station, roughly 2.7 miles north. Well-known places in the area include Ticehurst House Hospital (4.8 miles east). Open spaces near Rusher's Cross include Bewl Water and Crowborough Country Park.
What happens if it’s left?
A tube of sealant from the DIY shop will not fix the cause: dust, no primer and old sealant left in the joint. Cutting out, cleaning and priming are what make the difference. Around Rusher's Cross, older homes often have timber in their floors and frames, where water from a failed joint can cause rot if it’s left.
Doing several joints on one visit is generally more efficient than separate visits. We’ll give you a clear price for the lot.
Why choose Mr Mastic in Rusher's Cross
- Over 20 years’ experience
- Every job guaranteed for a year
- Anti-fungal silicone where joints get wet
- Any old sealant cut out fully, not covered over
Read what affects the cost and our reviews.
Your questions about new build mastic in Rusher's Cross
Do you cover smaller places like Rusher's Cross?
Yes, Rusher's Cross is covered. We work across London and the South East, and smaller places are part of that. Longer journeys are simply planned in advance.
Is Rusher's Cross in your area for new build mastic?
Yes, Rusher's Cross is within the area we cover. We work across London and the South East. Just phone 0345 464 0079 or email us with a few details of the job, and we will send you a clear quote.
What should I tell you?
The location, the problem and the rough size of the job. Photos by email help too.
Do you do commercial work?
Yes. We work in offices, washrooms, hotels and other commercial premises. Working times can be discussed when we quote.
Can you work from my snagging list?
Yes. Send it with photos and we will quote for the sealant items. If something is not sealant, we will say so.
Will there be a smell?
Possibly a little. It fades as the sealant cures.
Are you insured?
Yes. Full insurance covers our work, and we can confirm the details when we quote.
Do you work for developers?
Yes. We carry out plot mastic and second-fix sealing for builders and developers. Send us the plot schedule and we will quote.
When it isn’t the sealant
Honest advice matters more to us than a booking, so here’s what new sealant will not do:
- A tray or bath that isn’t properly supported, until it’s fixed
- Cracking that points to a structural problem
- Broken tiles or a split tray
If you’re not sure, just call 0345 464 0079 or send us an email and we will give you a straight answer.
Joints and surfaces we work on
- Bathrooms & en suites
- Show homes
- Kitchens
- Plot handovers
- Skirting & floors
- Windows & doors
How the visit works
Before we leave, we go over the finished joints with you. The work normally takes a few hours for most snagging lists, longer for a run of plots, depending on the size of the job. For a village or hamlet like Rusher's Cross, the journey is planned in advance: let us know about lanes, gates and parking. We bring what the job needs, so it can be finished in one trip where possible.
- First we work through your snagging list or plot schedule with you.
- Failed or untidy sealant is cut out completely.
- 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’re given the cure time.
Getting ready for the visit
- Keep pets and children clear of the area while we work
- Move anything stored near the joints
- For indoor joints, keep the area dry beforehand if you can
Ask for a quote
Getting a quote is simple: let us know the job and the location, and roughly how big it is. Photos by email help us understand the job.
Advice
Nearby places to Rusher's Cross
More services for Rusher's Cross
Keeping the joints in good condition
No joint lasts for ever, but care makes a real difference. Our tips:
- Report sealant problems to your builder during the snagging period
- Photograph failed sealant before it’s redone
- Don’t seal over failed sealant yourself
- Use the extractor fan every time you shower
Wipe the sealant with warm soapy water. Avoid abrasive pads and strong solvents.
Mould takes hold quickly in sealant that has gaps or lifted edges. Resealing before mould gets in keeps the job straightforward.
