Kent · England
Remedial Sealant in Marshborough
Removing failed, mouldy or leaking sealant and putting it right in Marshborough, with a 12-month guarantee on every job. Ask us for a quote.
- Gaps opening along the back of the worktop
- Smears and lumps from a botched reseal
- Sealant applied over old sealant that has lifted
Why deal with it now?
Repeat failures have a cause. Taking time to find the cause, whether it’s movement, a leak or the wrong product, is what stops it happening again. In a small place like Marshborough, homes can be exposed to wind and rain, which finds any gap, and damp in older walls is slow to dry out.
Some things make a job bigger or smaller: how much old sealant there is and how stubborn it is, whether mould needs treating, and whether the work is at height. Your quote takes all of that into account.
Why choose Mr Mastic in Marshborough
- We agree the colour with you first
- More than 20 years in sealant work
- Sealant colour chosen to suit
- We leave the area clean and tidy
See what affects the cost and customer reviews.
Remedial sealant in Marshborough, done properly
A joint that keeps failing generally has a reason. A tray that moves, a worktop that isn’t fixed, the wrong sealant or water getting in elsewhere will beat any new bead. Finding that cause comes before any new sealant. We work on expansion joints, failed movement joints and mouldy bath & shower sealant, and people most often call us about torn expansion joints and kitchen joints letting water behind the worktop.
In a village or hamlet like Marshborough, homes are often older cottages and farmhouses alongside a few newer houses. Older walls and timber floors can move a little, and cracked grout and split sealant are often the first signs.
All our work is covered by our 12-month guarantee, wherever you are in Kent.
- Where
- Marshborough (CT13)
- Region
- Kent
- Guarantee
- A year, on every job
- Quotes
- A clear quote up front
- Call
- 0345 464 0079
- Last updated
- 26 October 2026
Should I try it myself first?
Sealing over old silicone is the commonest DIY error. Silicone doesn’t stick to old silicone, so it lifts and traps water and mould underneath. Everything old must be removed first.
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.
When it isn’t the sealant
New sealant can’t fix everything, and we’d rather say so up front. Sealant won’t put right:
- Cracks in the fitting rather than the joint
- Old mastic in a building from before 2000 that should be checked for asbestos before it’s disturbed
- Failed tanking or loose tiles behind the sealant
If in doubt, ring 0345 464 0079 or send us an email and we’ll say what we think before you book.
Joints and surfaces we work on
- Mouldy bath & shower sealant
- Expansion joints
- Leaking tray & enclosure joints
- Failed movement joints
- Botched or over-sealed joints
- Shrunken worktop sealant
Remedial sealant in Marshborough: local notes
Hard water is the norm across most of the South East, which leaves limescale on sealant, grout and fittings.
Rented homes near Sandwich station change hands often, and failed or mouldy sealant is worth putting right between tenancies, before it turns into a leak. For site and facilities teams at buildings such as Sandwich Technology School, washroom and kitchen sealant there needs the same care as at home, and schools and businesses are part of our work as well as homes.
Marshborough is about 5 miles north-west of Deal, in Kent. For remedial sealant in and around Marshborough, it’s easy to get a quote: please ring 0345 464 0079 or send us an email. We are based in Crawley and cover Kent, Marshborough included. Marshborough is one of 922 towns and villages in Kent where we work. You can also see our page for Chelmsford, roughly 48 miles from Marshborough.
Every address in CT13 is within our area for remedial sealant, from the main roads to the quietest streets. Neighbouring places we cover for remedial sealant include Woodnesborough (1 mile south-east), East Street (1 mile north), Statenborough (1 mile south-east), Felderland (2 miles south-east) and Sandwich (2 miles east). We also work in nearby towns such as Canterbury (10 miles west), Margate (8 miles north-east), Dover (9 miles south), Folkestone (14 miles south-west), Ramsgate (7 miles north-east) and Broadstairs (8 miles north-east).
Landmarks near Marshborough
In Marshborough, that means homes and buildings near Ham Fen and the streets around them. For rail, the closest station is Sandwich station, roughly 1.7 miles east. Nearby you’ll also find White Mill (1.3 miles north-east) and Sandown Castle (4.8 miles south-east). Green spaces nearby include Monk's Wall nature reserve.
What the job involves on each surface
Over-sealed & botched joints
Every layer has to come out, including the smears and film on surrounding tiles. New sealant needs a fully clean surface.
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 we’re called out for in Marshborough
Joint depth matters. A bead bonded on three sides, or laid too thick, cannot flex, and tears at the first real movement. Backing sets the depth and stops that.
The most common problems we see are:
- Decorators’ caulk around a bath or shower
- Black mould underneath the bead
- Thick, messy sealant smeared over tiles
- Sealant applied over old sealant that has lifted
Homes close to Church of St Mary the Virgin include some older properties, and walls and floors in older homes can move, and sealant and grout show it first.
Comparing quotes
- What the quote includes, VAT included or not
- How the joint is cleaned and prepared
- Whether they’re fully insured
- Whether you can choose the colour
Nearby places to Marshborough
Other services in Marshborough
The process
A visit follows a simple pattern: we look at the joints together, mask and protect the surrounding surfaces, carry out the job and clear up. It normally takes a few hours, depending on how many layers have to come out. Somewhere like Marshborough needs a little journey planning: let us know about lanes, gates and parking. We bring what the job needs, so it can be finished in one trip where possible.
- We protect the surfaces around the joint.
- Every layer of failed sealant is stripped out.
- We clean and degrease the joint and look for signs of movement or water.
- New sealant goes in once the joint is dry, and is tooled smooth.
- We give you the cure time and explain what caused the failure.
Preparing for the visit
- Clear the area around the work
- Mention any parking rules near the property
- Mention any tricky access
Getting a quote
We do not publish a price list, because every job is different. Instead, your job gets its own clear quote. To arrange one, ring 0345 464 0079 or email us.
Advice
What affects the cost of remedial sealant
For a quick quote, just ask. What matters most is:
- How much old sealant there is and how hard it is to remove
- The product the joint needs
- The size of the job
- When we can work, for business premises
The cost depends on the amount of work, how hard the old material is to remove and access to the work. You’ll have a clear quote before any work starts.
What to tell us for a quote
You don’t need to know the technical terms. Just tell us:
- Pictures of the joints, sent by email
- The type of property
- Where the job is, and your postcode
- Roughly how big the job is
We quote each job on its own. Simply phone 0345 464 0079 or drop us an email and describe the job, and photos are welcome.
FAQs for Marshborough
Do you cover smaller places like Marshborough?
Yes, Marshborough is covered. Our work covers London and the South East, from towns to the smallest places. The journey is planned ahead, so it helps to know about access.
I let a flat near Sandwich station. Can you help?
Yes, landlords and agents are among the people we work for. You can ring 0345 464 0079 or drop us an email with the details for a clear quote.
Will the old sealant be removed?
Yes. All of the old material is cut out and the joint cleaned before applying anything new.
What should I tell you?
Tell us what needs doing and where, plus pictures if you have them. If we need more, we’ll ask.
How long before the joint can be used?
Cure times vary by product and the temperature. Before we leave, we’ll tell you the cure time.
Where are you based?
We’re a Crawley-based firm. Our area covers South East England, London and Scotland.
Can you take off two layers of silicone?
Yes. Each layer is cut out and the residue cleaned off, before resealing with a single bead.
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.