Kent · England
Remedial Sealant in South Green
Remedial sealant across South Green and nearby, with old sealant always removed completely.
- Products that weren’t meant for the joint
- Beads that never stuck properly
- Floor or wall movement joints that have failed
What sealant work cannot fix
New sealant cannot fix everything, and we will tell you before work begins. It will not solve:
- Water damage behind tiles that needs a tiler
- A leaking trap, valve or supply pipe
- A cracked shower tray or bath (that needs repair or replacing)
If in doubt, call 0345 464 0079 or email us and we’ll say what we think before you book.
Joints and surfaces we work on
- Botched or over-sealed joints
- Failed movement joints
- Shrunken worktop sealant
- Leaking tray & enclosure joints
- Mouldy bath & shower sealant
- Expansion joints
Remedial sealant in South Green
If a joint has been resealed and is leaking again, it’s worth a proper look. It helps to have pictures when you phone 0345 464 0079 or drop us an email, along with when it was last resealed. We’re often asked to deal with mould trapped under a layer of silicone and smears and lumps from a botched reseal, across failed movement joints, leaking tray & enclosure joints and mouldy bath & shower sealant.
Being in a small place like South Green makes no difference to the job itself: the journey and access are simply agreed in advance. Once we are there, the bathroom or kitchen gets the same care as anywhere else.
There’s a 12-month guarantee on every job, large or small.
- Location
- South Green (ME9)
- Region
- Kent
- Guarantee
- 12 months on all our work
- Quote
- A clear price before we start
- Phone
- 0345 464 0079
- Last updated
- 26 October 2026
Why deal with it now?
Spraying mould remover on a sealed-over joint does not reach what’s underneath. Removal is the only way to get at it. Around South Green, older homes often have timber in their floors and frames, and water through a failed joint can rot timber if it’s left.
Commercial jobs are quoted on the same basis as homes: the amount of work, the access and the products needed. Call for a quick quote and we’ll go through it with you.
Why South Green clients choose us
- 12-month guarantee on every job
- Any old sealant cut out fully, not covered over
- We are fully insured
- Arbo and Everbuild products
Take a look at our cost guide and customer reviews.
FAQs for South Green
Do you work for landlords with property near Newington station?
Yes, we work for landlords and agents. You can phone 0345 464 0079 or email us with the address and a few details, and we’ll give you a fixed price before we start.
Do you cover smaller places like South Green?
Yes, smaller places are covered as well as towns. Our work covers London and the South East. Just mention lanes, gates or anything else about the route when you book.
Can you work on commercial sites?
Yes, regularly. We can plan bigger jobs in stages.
Are you an approved applicator?
Yes. We are ARBOMaster approved, the scheme for applicators of Arbo sealants.
What does remedial sealant cost?
Size, access and the old material all affect the cost. Call for a quick quote.
Where are you based?
Mr Mastic is based in Crawley. We cover South Green and the rest of Kent, along with the rest of our area.
Are you insured?
Yes. Full insurance covers our work.
Does someone need to be in?
Access is agreed with you when the job is booked. Indoors, that normally means someone at home.
How to look after the new joints
Simple care keeps the joints in good condition. We recommend:
- Look for stains below bathrooms now and then
- Find out why the sealant failed first
- Deal with small splits early
- Use a soft cloth, not a scourer, on silicone
Watch the joint over the first few weeks, particularly where the original failure was caused by movement. Should anything change, phone 0345 464 0079 or drop us an email.
Signs to act on: peeling layers, mould showing through the bead, leaks after showering or cracks in a movement joint. Each one is worth getting looked at.
How it works
On the day, we look over the joints with you first. We protect the surfaces around the joints before any work begins. The work usually takes a few hours for a typical bath or shower, longer where several layers have been applied. In a small place like South Green, access is normally the main thing to plan. For outside work, also let us know about exposed walls and any outbuildings involved.
- First we find out how and where the joint has failed.
- All the old sealant comes out, including any layers underneath.
- We clean the joint, treat any mould and let it dry.
- Moving joints get backing and a flexible sealant to suit.
- We tool the joint and tell you about anything else that needs attention.
How to prepare
- Clear the area around the work
- Keep pets and children clear of the area while we work
- Mention any leaks or damp you’ve noticed
Get a quote
For a quote, phone 0345 464 0079 or send us an email and tell us where the job is and what the problem looks like. We will give you a clear quote before any work starts.
Read more
What we are called out for in South Green
Using the wrong product is a common cause: caulk where it gets wet, rigid sealant where things move, or an acetoxy silicone on a surface it can mark. None of them last.
Most people get in touch after spotting something like this:
- Over-sealed joints coming away
- Sealant peeling off a dusty or damp surface
- Movement joints that have split or pulled away
- Kitchen joints letting water behind the worktop
If you let a flat or house near Newington station, a joint that keeps failing is best fixed properly while the property is empty.
Questions to ask before booking
- Whether you can choose the colour
- Whether they seal over old material or remove it
- How the joint is cleaned and prepared
- What the cure time is
Also near South Green
More services for South Green
What the job involves on each surface
Over-sealed & botched joints
A botched joint can hide two or three layers of sealant, including the smears and film on surrounding tiles. New sealant needs a fully clean surface.
Worktops & kitchens
Shrunken worktop sealant leaves a gap that lets water into the back edge. It’s cut out, degreased and resealed colour-matched to the worktop.
Remedial sealant around South Green
Most of the South East has hard water, so limescale builds up on sealant, grout and fittings.
In the older streets around St Mary Magdalene Church, walls and floors in older homes can move, and sealant and grout show it first.
South Green is about 4 miles south-west of Sittingbourne, in Kent. From the centre of South Green to the outskirts, we cover remedial sealant for every kind of property. 922 places in Kent are on our list, from the larger towns to small villages. We also work in Chelmsford, around 30 miles away.
We work across the ME9 postcode area for remedial sealant and the streets around it. If you are just outside South Green, we cover Stockbury (1 mile north-west), Oad Street (2 miles north-east), Silver Street (2 miles east), Bredgar (2 miles east) and Danaway (2 miles north-east). Further out, we also cover Maidstone (6 miles south-west), Ashford (15 miles south-east), Sittingbourne (4 miles north-east), Gravesend (14 miles north-west), Faversham (10 miles east) and Minster (10 miles north-east).
Around South Green
Around South Green, our work takes us to homes and buildings near Stockbury Hill Wood and The Three Squirrels pub and the streets around them. The nearest railway station is Newington station, roughly 3 miles north of the centre. Nearby you will also find Leeds Castle (4.4 miles south) and KIMS hospital (4.5 miles west). The countryside around South Green includes Detling Hill.
DIY sealant or a professional job?
Some jobs are best left to a professional: work at height, external movement joints, fire-rated sealant and large areas need the right product, the right access and the right method.
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.