East Sussex · England
Five Ashes New Build Mastic
New build mastic across Five Ashes and nearby, with old sealant always removed completely and a one-year guarantee.
- Kitchen sealant that has pulled off the wall
- Cracked caulk along new skirting
- Internal frame sealant that has split
New build mastic in Five Ashes
If your new home has a leaking shower seal, open skirting joints or untidy sealant, we can help. While the builder’s snagging or warranty period runs, report it to them first, and if it is not put right, get in touch with us. Typical jobs include untidy sealant flagged on a snagging list and new-build shower sealant that has already split, across skirting & floors, show homes and plot handovers.
Somewhere as small as Five Ashes, new homes tend to be conversions, self-builds or a few houses rather than an estate. Each still needs its sealant and floor joints finished properly.
All of our work is guaranteed for twelve months, and the guarantee is the same wherever you are.

- Location
- Five Ashes (TN20)
- Wider area
- East Sussex
- Cover
- 12 months on all our work
- Price
- Quoted before any work starts
- Phone
- 0345 464 0079
- Page updated
- 26 October 2026
New homes and floors in Five Ashes
Rainfall in the South East is lower than in much of the UK, but outside sealant still needs a dry, clean surface, so outdoor work is planned around the forecast.
For new homes near Crowborough station, it’s worth checking the sealant early, while snags are still fresh.
Five Ashes is about 4 miles south-east of Crowborough, in East Sussex. For new build mastic in and around Five Ashes, please call 0345 464 0079 or send us an email for a quick quote. We cover East Sussex from our Crawley base, Five Ashes included. Five Ashes is one of 289 towns and villages in East Sussex where we work. Our Crawley page covers work nearby (19 miles or so).
Jobs for new build mastic in TN20 is quoted and booked the same way as anywhere else. Whether your property is on Westfield Close, Leeds Lane and Spring Lane or a nearby road, we can help. Other places close to Five Ashes include Skippers Hill (1 mile north), Butcher's Cross (1 mile north), Woolbridge (1 mile north-east), Wellbrook (1 mile north-east) and Mayfield (2 miles north-east). We also work in nearby towns such as Eastbourne (15 miles south), Bexhill-on-Sea (15 miles south-east), Lewes (13 miles south-west), Hailsham (10 miles south), Crowborough (4 miles north-west) and Uckfield (6 miles south-west).
Near you in Five Ashes
In Five Ashes, that means homes and buildings near Skippers Hill Manor School and The Five Ashes Inn and the streets around them. The nearest railway station is Crowborough station, about 3.3 miles north-west. Well-known places in the area include Tickerage Castle (3.8 miles south-west) and Crowborough War Memorial Hospital (4.3 miles north-west). Not far away are Selwyns Wood.
Leave it or put it right?
DIY kits don’t solve the main problems with new-build sealant: dust, no primer and old sealant left in the joint. Proper removal and preparation are what make it last. In a small place like Five Ashes, homes can be exposed to wind and rain, which finds any gap, and older walls, once damp, take a long time to dry.
Every job is a little different, so we quote each one individually. The number of joints, how easy they are to reach and the sealant needed all play a part, and we will explain the quote if you ask.
What you get with us
- Experience in homes, commercial sites and hotels
- Old sealant always removed completely
- Anti-fungal sanitary silicone in wet areas
- A sealant colour to suit the surroundings
Take a look at what affects the cost and what customers say.
When something else is needed
New sealant can’t fix everything, and we’d rather say so up front. Sealant will not put right:
- Leaks from pipes, valves or wastes, which need a plumber
- Baths and trays that move too much for sealant to cope with
- Disputes or warranty claims with your builder
If you are not sure, just ring 0345 464 0079 or drop us an email and we will give you a straight answer before you book.
Where we work in Five Ashes
- Kitchens
- Bathrooms & en suites
- Skirting & floors
- Plot handovers
- Show homes
- Windows & doors
Your questions about new build mastic in Five Ashes
Can you do new build mastic in Five Ashes?
Yes. We work across London and the South East, and Five Ashes is part of that. Just call 0345 464 0079 or drop us an email with a few details of the job, and we will give you a clear quote.
I let a flat near Crowborough station. Can you help?
Yes, we work for letting agents and landlords. Just call 0345 464 0079 or email us and tell us about the property, and we will give you a clear quote.
How long will you be here?
A typical job takes a few hours in a single home, including preparation and clearing up. We will confirm how long when we quote.
Should I go to my builder first?
Report it to the builder first while you’re covered. If it is not resolved, we can reseal it properly.
Can new sealant go on top of the old bead?
No. New silicone won’t bond to old silicone, so it soon lifts and traps water. The old sealant always comes out first.
Can you do plot mastic on a new development?
Yes. Second-fix sealing in bathrooms, kitchens, frames and floors is part of what we do. Good preparation keeps snagging to a minimum.
Why does sealant fail so quickly in new builds?
Cracking in the first couple of years is common, because the house is drying and settling. Poor preparation at handover adds to it.
Should I try DIY first?
Some simple jobs can be done by a careful DIYer. Most DIY failures come from sealing over old material, wet joints or too much sealant.
Keeping the joints in good condition
Looking after new joints is easy, and it makes a real difference:
- Avoid running a DIY bead over the old one
- Clean sealant with mild detergent, not abrasives
- Ventilate bathrooms well, especially in the first year
- Act quickly if a seal starts to leak
Ventilation matters in a new home, which is still drying out. Run the fan or open a window after bathing.
Mould takes hold quickly in sealant that has gaps or lifted edges. Dealing with it before it goes black keeps the job straightforward.
DIY versus a professional finish
The difference is mostly in the preparation and the product. We take joints back to clean, dry surfaces, and the sealant is chosen for how the joint moves and where it is, then guaranteed for a year.
Sealing over old silicone is the commonest DIY error. Silicone doesn’t stick to old silicone, so it peels away and traps moisture behind it. All the old material has to come out first.
Surface by surface
Bathrooms and en suites
Trays and baths in new builds settle as they’re used. We reseal once the old bead is fully out and baths are filled before sealing.
Kitchens
Worktops in new homes can move slightly as the house dries, which opens gaps along the back. We reseal them with a flexible sealant.
What happens on the day
Before we leave, we go over the finished joints with you. The visit itself usually takes a few hours for most snagging lists, longer for a run of plots, depending on the size of the job. In a small place like Five Ashes, access is usually the main thing to plan. 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 down to clean surfaces.
- We clean out the dust and grit left from the build.
- Primer goes on where the surface and product need it, then the new sealant.
- We tool every joint neatly and tell you when each area can be used.
Preparing for the visit
- Tell us if parking is tricky
- Tell us about any water getting in
- Keep children and pets away from the work area
How to get a quote
Every job is quoted individually, so start by telling us what you need. Simply call 0345 464 0079 or send us an email and describe the job.
Advice
Do you need new build mastic in Five Ashes?
Not every new-build joint gets the right sealant: caulk where water collects, or a rigid product on a moving joint. Both fail early.
The most common problems we see are:
- Kitchen sealant that has pulled off the wall
- Second-fix sealing on new plots
- Smeared, uneven beads picked up at snagging
- Gaps between new skirting and floors
Around Five Ashes, as everywhere, new build mastic is only as good as the preparation behind it.
Questions to ask before booking
- What guarantee comes with the work
- What happens if they find a problem under the old sealant
- What preparation is included
- Whether VAT is included
