East Sussex · England
New-build mastic & snagging in South Malling, East Sussex
New-build sealant joints in South Malling need attention? We remove the old material, prepare the joints and seal them properly, with a 12-month guarantee.
- Sealant work across a run of new homes
- Worktop and upstand sealant coming away
- Leaking shower tray seals in a new home
New build mastic in South Malling, done properly
Developers send us the plot schedule and we work through it. We seal bathrooms, kitchens, windows, doors and skirting so plots are ready to hand over with a sealant suited to each area. We work on bathrooms & en suites, plot handovers and kitchens, and common reasons people get in touch are cracks appearing as a new home settles and internal frame sealant that has split.
For a new home in or near South Malling, it’s worth checking the sealant early. Gaps at skirtings, shower seals pulling away and missing mastic around frames are common snags.
All of our work is guaranteed for twelve months, in South Malling and everywhere else we cover.
- Location
- South Malling (BN7, BN8)
- Region
- East Sussex
- Guarantee
- 12 months on all our work
- Price
- Quoted before any work starts
- Telephone
- 0345 464 0079
- Updated
- 26 October 2026
Aftercare tips
How long the joints last depends on use and care. We suggest:
- Follow the cure time we give you
- Put sealant faults on your snagging list early
- Do not seal over failed sealant yourself
- Check bath and shower seals every few months as the house settles
Avoid standing on the rim of the bath or the edge of the tray. If a bath or tray moves when you stand in it, get it looked at.
Report failed sealant to the builder while you are in the snagging period. After that, putting it right may fall to you so report it promptly.
Other services in South Malling
What the job involves on each surface
Show homes
In a show home, the sealant is on display. We lay neat, even beads in colours to suit the finishes.
Plot handovers
We work through plots to your schedule, sealing each room ready for handover. Joints are prepared properly before sealing to keep callbacks down.
How it works
When we arrive, we start by going over the job with you. We protect the surfaces around the joints before work begins. The work usually takes a few hours for most snagging lists, longer for a run of plots. A visit to South Malling is planned like any other: the time, the access and where to park are agreed in advance. Outdoor jobs depend on a dry day, since sealant needs a dry surface.
- Each joint is checked for movement before we start.
- Old sealant is cut out and the joints cleaned.
- Joints are dried and primed where the product calls for it.
- New sealant goes in, with baths filled first so they’re at their heaviest.
- The finished joints are checked and the cure times given.
Before we arrive
- Keep pets and children clear of the area while we work
- Mention if the joints have been sealed before
- Tell us about access, such as stairs, a lift or high-level joints
Ask for a quote
We quote each job on its own, so the first step is telling us about yours. Simply call 0345 464 0079 or email us and describe the job.
Advice
DIY sealant or a professional job?
Too much sealant is as bad as too little. A thick, smeared bead looks untidy and does not move well, and getting the depth right matters as much as the look.
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.
New homes and floors in South Malling
The South East is one of the drier parts of the UK, though outdoor sealant still has to go onto a dry joint, so the forecast decides the day.
Around South Malling, as everywhere, new build mastic is only as good as the preparation behind it.
South Malling is about 1 mile north-east of Lewes, in East Sussex. Across the BN7 area, we can carry out new build mastic at your property. 289 places in East Sussex are on our list. There’s also a page for Brighton, roughly 7 miles from South Malling.
We cover every part of the BN7 and BN8 postcode area for new build mastic. Whether your property is on Lee Road, New Road and Mill Road or anywhere close by, our applicators can take on the job. With the A26 and A2029 close by, South Malling is simple for us to get to for new build mastic. We also cover the places around South Malling: Lewes (1 mile south-west), Cliffe (1 mile south-east), Southover (1 mile south), Hamsey (1 mile north) and Offham (1 mile north-west). Larger places within reach include Eastbourne (14 miles south-east), Seaford (8 miles south-east), Hailsham (11 miles east), Crowborough (14 miles north-east), Uckfield (7 miles north-east) and Newhaven (6 miles south).
What’s near South Malling
Typical jobs here are in homes near Elephant and Castle pub, Priory School and Railway Land. South Malling’s nearest station is Lewes station, about 0.7 miles south. Well-known places in the area include Lewes Victoria Hospital (0.8 miles south-west) and Lewes Castle (0.5 miles south-west). Not far away are Malling Down and Cliffe Hill.
South Malling: your questions answered
Can you do new build mastic in South Malling?
Yes. Our work covers London and the South East, and South Malling is part of that. Just call 0345 464 0079 or email us with a few details of the job, and we’ll give you a clear quote.
Do you work for landlords with property near Lewes station?
Yes, rental work is part of what we do. Just ring 0345 464 0079 or email us and tell us about the property, and we will send you a clear quote.
Is there any odour?
Some sealants have a smell while they cure, but it fades. Opening a window helps.
Can you do plot mastic on a new development?
Yes. We work through plots to your schedule. Get in touch with the number of plots and the scope for a clear quote.
Is it normal for sealant to crack in a new home?
Lots of new homes see sealant crack early, because the house is drying and settling. Poor preparation at handover adds to it.
Can you do several jobs on one visit?
Yes, and it often makes sense. Doing several areas at once is generally more efficient.
Is it worth trying it myself?
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.
Is the work guaranteed?
Yes. Every job comes with a one-year guarantee.
What sealant work can’t fix
We won’t take on work that won’t last, so here’s what sealant can’t put right:
- Plumbing faults behind the sealant
- Baths and trays that move too much for sealant to cope with
- Settlement cracks that need a surveyor
If you are not sure, just ring 0345 464 0079 or send us an email and we will give you a straight answer.
What we seal
- Plot handovers
- Windows & doors
- Skirting & floors
- Show homes
- Bathrooms & en suites
- Kitchens
Landlords, agents and businesses in South Malling
For anyone letting property in or around South Malling, jobs at different addresses can go on one quote. Send us the addresses and the work at each.
From a single let to a portfolio, the work is the same standard: old sealant fully removed, joints prepared properly and a 12-month guarantee.
Signs you need new build mastic in South Malling
Fresh sealant can be knocked or cut by trades finishing off. If it’s disturbed before curing, the joint can be left weak.
Most people get in touch after spotting one of these:
- Untidy sealant flagged on a snagging list
- Worktop and upstand sealant coming away
- Cracked caulk along new skirting
- Gaps opening as the house dries out and settles
If you’ve bought a new home near Lewes station, the sealant around baths, showers and frames is worth checking in the first year or two.
What to look for in a quote
- When the joint can take water or movement
- Whether all the old sealant comes out first
- How much experience the applicator has
- How the surfaces are prepared before sealing