Kent · England
Remedial sealant & repairs in Southborough, Kent
Professional remedial sealant in and around Southborough, with every bit of old sealant taken out first and a 12-month guarantee.
- Dark patches showing through the sealant
- Smears and lumps from a botched reseal
- Decorators’ caulk around a bath or shower
Remedial sealant in Southborough, done properly
If a joint has been resealed and is leaking again, it’s worth a proper look. It helps to have photos when you ring 0345 464 0079 or drop us an email, along with when it was last resealed. We work on mouldy bath & shower sealant, leaking tray & enclosure joints and expansion joints, and common reasons people get in touch are thick, messy sealant smeared over tiles and worktop sealant that has shrunk and split.
Around Southborough, you’ll mostly find houses and bungalows, from older cottages to newer builds. Sealant and grout wear out here just as they do in a big town.
The work is covered for a year after we finish. If anything is not right with it, phone 0345 464 0079 or email us.
- Where
- Southborough (TN4, TN2)
- Region
- Kent
- Cover
- A year, on every job
- Price
- A clear price before work begins
- Telephone
- 0345 464 0079
- Updated
- 26 October 2026
When it is not the sealant
Sealant isn’t the answer to every problem, and we’d rather say so up front. It won’t solve:
- A bath, tray or worktop that moves until it’s properly fixed
- A leaking trap, valve or supply pipe
- A cracked shower tray or bath (that needs repair or replacing)
Not sure which it is? You can phone 0345 464 0079 or send us an email and we’ll tell you honestly.
Joints and surfaces we work on
- Failed movement joints
- Botched or over-sealed joints
- Mouldy bath & shower sealant
- Shrunken worktop sealant
- Expansion joints
- Leaking tray & enclosure joints
How we quote for remedial sealant
We quote each job individually. These are the things that affect it:
- How many areas need sealing
- Mould in or behind the old joints
- Whether the work is at height
- Working hours on commercial sites
The cost reflects the work involved, not a rough estimate. That’s why we ask a few questions first.
What to tell us for a quote
To help us quote quickly, please include:
- Where the property is
- Photos by email, if that’s easy
- If someone has resealed it before
- The rough size of the job
Asking for a quote is easy: let us know the job and the location and its rough size. A few pictures by email make the job easier to understand, and we will come back to you with a quote.
Different surfaces, different methods
Movement & expansion joints
Joints filled with mortar, grout or rigid filler cannot move. Where it can be raked out, we replace it with flexible sealant.
Windows & doors
Frames resealed over the top end up with hard, layered mastic. All of it is cut out and the frame and wall cleaned.
What happens if it’s left?
Remedial work takes longer than a straight reseal, but rarely a lot: the work takes a few hours for a typical bath or shower, longer where several layers have been applied. It’s far less disruption than resealing the same joint again and again. In a smaller place like Southborough, wherever a wall is exposed, a failed outside joint is a real source of damp. Indoors, a failed seal lets water into floors and panels as it would anywhere.
Instead of a standard rate, we look at what your job involves: how many joints, what’s in them now and how we reach them. You’ll know the price before we begin.
Why choose Mr Mastic in Southborough
- Experience in homes, commercial sites and hotels
- Colour picked to suit the job
- 20+ years of sealant experience
- Quality sealants from Arbo and Everbuild
Take a look at our cost guide and our reviews.
Your questions about remedial sealant in Southborough
Do you cover smaller places like Southborough?
Yes, smaller places are covered as well as towns. We work across London and the South East. Let us know about access, parking and anything unusual about getting there when you book.
Is Southborough in your area for remedial sealant?
Yes, Southborough is within the area we cover. Our work covers London and the South East. Just phone 0345 464 0079 or drop us an email with a few details of the job, and we will give you a clear price.
Will you leave a mess?
Not at all. We work neatly, protect the area around the joints and tidy up afterwards.
What happens if the problem is the tray or the plumbing?
Then we explain what we have found. A plumber or fitter may be needed before any new sealant goes on.
Should I try DIY first?
Some simple jobs can be done by a careful DIYer. The usual mistakes are sealing over old sealant, sealing a damp joint and using too much.
Can you strip sealant from an acrylic tray safely?
Yes. Careful removal is most of a remedial job, particularly on softer surfaces like acrylic.
Do I need to be at home?
That depends on where the joints are. Inside work needs someone to give us access, and for outside work we will agree access with you when we book.
Is there any odour?
Possibly a little. Any smell clears as the sealant cures, and ventilation helps.
Places near Southborough
Also in Southborough
What we’re called out for in Southborough
Some joints fail because water is reaching them from behind. A slow leak behind the tiles soaks the joint from the back, so the silicone goes mouldy or lets go.
The problems people generally mention when they call include:
- Smears and lumps from a botched reseal
- Gaps opening along the back of the worktop
- Torn expansion joints
- Over-sealed joints coming away
Rented homes near High Brooms station change hands often, and a joint that keeps failing is best fixed properly while the property is empty.
Comparing quotes
- Whether the sealant suits the joint
- How hidden problems are handled
- Which colour the sealant will be
- How long to leave it before use
Remedial sealant around Southborough
Most of the South East has hard water, so limescale builds up on sealant, grout and fittings, and it has to be cleaned off before new sealant goes in.
Managing a site like Southborough CofE Primary School? Then its toilets, changing areas and kitchens need their sealant renewed like any other building’s. For an older house near a landmark such as Christ Church, older homes can move a little, which is hard on rigid grout and tired sealant.
Southborough is about 1 mile north of Royal Tunbridge Wells, in Kent. From the centre of Southborough to the outskirts, we cover remedial sealant for every kind of property. Our Kent coverage runs to 922 places, Southborough among them. There’s also a page for Crawley, about 20 miles away.
Here we cover the TN4 and TN2 postcode area for remedial sealant. Local streets include London Road, Church Road and Norton Road, all of which we cover. Southborough sits on or near the A26, so getting to you is simple. Close by, we work in High Brooms (1 mile south-east), Stockland Green (1 mile west), Bidborough (1 mile north-west), Royal Tunbridge Wells (1 mile south) and Speldhurst (2 miles west). Further out, we also cover Maidstone (14 miles north-east), Sevenoaks (9 miles north), Tonbridge (3 miles north), Kings Hill (10 miles north-east), Foley Park (15 miles north-east) and Paddock Wood (6 miles east).
Near you in Southborough
Typical jobs here are in homes near Barnett's Wood, St Gregory's Catholic School and Flying Dutchman pub and the streets around them. For rail, the closest station is High Brooms station, about 1 mile south-east of the centre. Other landmarks nearby include Kent and Sussex Hospital (1.4 miles south) and Tonbridge Castle (2.8 miles north). For a walk, there’s Tudeley Woods RSPB reserve and Barden Lake.
How the visit works
At the end, we look at the finished work together. The visit itself generally takes a few hours, depending on how many layers have to come out, depending on the size of the job. For a job in Southborough, we agree the time, the access and parking before the day. If the work is outside, the weather plays a part, as sealant needs a dry surface.
- Surrounding tiles, trays and frames are protected first.
- The botched or failed sealant is cut away completely.
- The joint is degreased and checked for movement and leaks.
- New sealant goes in once the joint is dry, and is tooled smooth.
- You get the cure time and our view on why the joint failed.
How to prepare
- Mention any leaks or damp you’ve noticed
- Mention if the joints have been sealed before
- Keep pets and children clear of the area while we work
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’ll give you a clear quote before any work starts.
Advice
Aftercare tips
How long the joints last depends on use and care. Here’s what we suggest:
- Ask why a joint failed before redoing it
- Never fill a movement joint with mortar or grout
- Deal with small splits early
- Clean sealant with mild products only
Where we’ve pointed out another fault, have it put right, because the new sealant can’t hold back a problem underneath.
Movement joints that have split let water into the structure, and the longer it’s left, the more the joint edges break down. A joint with sound edges is far easier to reseal.