Kent · England
Remedial Sealant in Dunkirk
Removing failed, mouldy or leaking sealant and putting it right in Dunkirk, with a one-year guarantee on every job. Call for a quick quote.
- Decorators’ caulk around a bath or shower
- Wide, uneven beads that look worse than the old ones
- Kitchen joints letting water behind the worktop
Signs you need remedial sealant in Dunkirk
Some joints fail because water is reaching them from behind. A slow leak behind the tiles soaks the joint from the back, and the sealant lifts or goes mouldy from underneath.
These are the problems we’re asked about most:
- Mould trapped under a layer of silicone
- Floor or wall movement joints that have failed
- Thick, messy sealant smeared over tiles
- Beads that never stuck properly
For an older house near a landmark such as Christ Church, timber floors under older bathrooms flex, so joints need a sealant that moves with them.
Before you book anyone
- What the quote includes, VAT included or not
- How much experience the applicator has
- Whether they seal over old material or remove it
- How long the guarantee is
About our remedial sealant in Dunkirk
Removing failed sealant is the hardest part of the job. We cut out every layer, clear the residue and degrease the surfaces, taking care not to scratch the surfaces around it. New sealant only bonds to a clean, dry joint. We work on failed movement joints, mouldy bath & shower sealant and leaking tray & enclosure joints, and common reasons people get in touch are dark patches showing through the sealant and wide, uneven beads that look worse than the old ones.
For a small place like Dunkirk, remedial sealant is planned like any other job: the journey and access are simply agreed in advance. Once we’re there, the bathroom or kitchen gets the same care as anywhere else.
We stand behind the work with a 12-month guarantee, so you’re covered after we have gone.
- Place
- Dunkirk (ME13)
- Wider area
- Kent
- Guarantee
- 12 months on all our work
- Price
- Quoted before any work starts
- Telephone
- 0345 464 0079
- Last updated
- 26 October 2026
What affects the quote in Dunkirk
There’s no set price list, because no two jobs are the same. The quote depends on:
- The type of sealant required
- The old material and how stubborn it is
- How easy the joints are to reach
- Whether there’s mould to deal with
The cost reflects the work involved, not a rough estimate. That’s why we ask a few questions first and send you a clear quote before any work starts.
What to tell us for a quote
What to tell us when you ask for a quote:
- Roughly how big the job is
- Whether it has been sealed before
- Whether it’s a home or a business
- Where the property is
For a quote, ring 0345 464 0079 or drop 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.
FAQs for Dunkirk
Will you come out to Dunkirk?
Yes, smaller places are covered as well as towns. We work across London and the South East. Just mention lanes, gates or anything else about the route when you book.
Do you cover Dunkirk for remedial sealant?
Yes, Dunkirk is within the area we cover. Our work covers London and the South East. Just ring 0345 464 0079 or email us with a few details of the job, and we’ll give you a clear quote.
Will there be a smell?
Some sealants have a smell while they cure, which fades as it sets. Opening a window helps.
How long does remedial resealing take?
A little longer than a standard reseal. For most joints, it’s a few hours.
Will the old sealant be removed?
Yes, every time. New sealant won’t bond properly to old, so any old material comes out before anything new goes in.
Do you work for letting agents?
Yes. We work for householders, landlords, letting agents, businesses and hotels.
Where is Mr Mastic based?
Our base is Crawley, with over 20 years’ experience. Our area covers South East England, London and Scotland.
What if resealing won’t fix my leak?
Then we explain what we have found. You may need a plumber or bathroom fitter before any new sealant goes on.
How it works
Good joint work is mostly preparation, so that’s where we spend the time. Every joint is cleaned and dried before new material goes in. All told, the work takes a few hours, depending on how many layers have to come out. Somewhere like Dunkirk 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.
- First we find out how and where the joint has failed.
- Every layer of old sealant is cut and cleaned out.
- We clean the joint, treat any mould and let it dry.
- Moving joints get backing and a flexible sealant to suit.
- The new joint is tooled neatly and we explain anything else we found.
Getting ready for the visit
- Try not to wet indoor joints just before the visit
- Tell us about any previous sealing or DIY attempts
- Mention any leaks or damp you’ve noticed
How to get a quote
Getting a quote is simple: let us know what needs doing and where and its rough size. Photos by email help us understand the job.
Related advice
Also in Dunkirk
Honest limits
Sealant is not the answer to every problem, and we’ll tell you before work begins. Sealant won’t put right:
- A cracked shower tray or bath (that needs repair or replacing)
- Leaks from a shower valve, waste or pipework (a plumber’s job)
- A tray or worktop that needs refixing first
Not sure which it is? You can call 0345 464 0079 or email us and we’ll tell you honestly before booking.
What we seal
- Expansion joints
- Botched or over-sealed joints
- Shrunken worktop sealant
- Mouldy bath & shower sealant
- Failed movement joints
- Leaking tray & enclosure joints
Leave it or put it right?
Ripping out a bathroom is not usually needed. If the bath, tray and tiles are sound, remedial resealing generally puts it right. If they’re not, we will tell you. Older cottages and farmhouses around Dunkirk can have timber floors and frames, and water through a failed joint can rot timber if it’s left.
A few things move the cost up or down: how much old sealant there is and how stubborn it is, any mould to treat, and whether we need extra access for height. We take all of that into account in your quote.
Why book with us
- We’re fully insured
- Sanitary silicone with an anti-fungal additive in wet areas
- Tidy, careful work
- Experience in homes, commercial sites and hotels
Bathrooms and kitchens in Dunkirk
Hard water is the norm across most of the South East, so limescale builds up on sealant, grout and fittings.
Rented homes near Selling station change hands often, and botched sealant from a previous quick fix is easier to strip out between tenants.
Dunkirk is about 4 miles south-east of Faversham, in Kent. Across the ME13 area, our applicators can take on remedial sealant. 922 places in Kent are on our list, from the larger towns to small villages. Chelmsford is on our list too, around 37 miles away.
All of ME13 is within our area for remedial sealant, from the main roads to the quietest streets. Streets in the area include London Road and Courtenay Road. Other places close to Dunkirk include Boughton under Blean (1 mile west), Winterbourne (1 mile south-west), Hickmans Green (1 mile west), Oversland (1 mile south-west) and South Street (2 miles south-west). Within a short drive, we also cover Ashford (12 miles south-west), Canterbury (5 miles east), Sittingbourne (11 miles west), Whitstable (5 miles north-east), Faversham (4 miles north-west) and Herne Bay (9 miles north-east).
Near you in Dunkirk
We work in homes and buildings around The Red Lion pub and Mount Ephraim Gardens, among other places. The closest station to Dunkirk is Selling station, roughly 1.9 miles south-west. Nearby you will also find Chilham Castle (3.5 miles south) and Eastbridge Hospital of St Thomas the Martyr (4.4 miles east). Not far away are Blean Woods RSPB Reserve.
Landlord and commercial work in Dunkirk
We also work for businesses, from offices to washrooms and kitchens. For commercial premises, we can talk through working times when we quote.
Letting agents often deal with us directly. Send the address, what’s needed and the access arrangements and we’ll quote.
Aftercare tips
So the new joints stay in good condition:
- Have loose fittings fixed before resealing
- Always have old sealant cut out, not covered
- Keep movement joints clear of mortar and paint
- Keep an eye on the ceiling below the bathroom
Don’t let anyone seal over it later. Over-sealing is how many remedial jobs start.
Leaks through failed sealant grow over time. Each use pushes more water behind the bead, into floors, walls or ceilings. Sorting it early limits the damage.