Kent · England
Remedial Sealant in Hersden
Removing failed, mouldy or leaking sealant and putting it right for homes and businesses in Hersden and across Kent. Fully insured, ARBOMaster approved and guaranteed for a year.
- Leaks that keep coming back after resealing
- A second bead peeling off the first
- Worktop sealant that has shrunk and split
Remedial sealant in Hersden, done properly
Removing failed sealant is the hardest part of the job. Every layer is cut out, the residue cleaned off and the joint degreased, without scratching tiles, trays or frames. New sealant only bonds to a clean, dry joint. We’re often asked to deal with leaks that keep coming back after resealing and sealant applied over old sealant that has lifted, on failed movement joints, mouldy bath & shower sealant and leaking tray & enclosure joints.
In a smaller place like Hersden, homes are mostly houses and bungalows rather than flats, from older cottages to newer builds. Bathrooms and kitchens here get the same daily wear as anywhere, and the sealant and grout show it first.
The work is guaranteed for twelve months. If there’s a problem with our work within the year, let us know and we will sort it.
- Location
- Hersden (CT3)
- Wider area
- Kent
- Cover
- One year on every job
- Price
- A clear quote up front
- Phone
- 0345 464 0079
- Page updated
- 26 October 2026
The process
All our tools and materials come with us in the van. Once we’ve agreed what’s being done, the area is protected and the work begins. Most jobs take a few hours, depending on how many layers have to come out. A visit to Hersden 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.
- First we work out whether the problem is the sealant, movement or a leak.
- Each layer is cut out and the residue cleaned off.
- Mould is treated and the joint dried.
- We reseal with a product suited to the joint, backed where needed.
- The joint is tooled and you’re told about anything else we found.
How to prepare
- Let us know about earlier repairs to the joints
- Tell us if parking is tricky
- Mention any sign-in or site rules at work premises
How to get a quote
We quote each job on its own, so the first step is telling us about yours. Simply ring 0345 464 0079 or drop us an email and describe the job and send photos if you have them.
Related advice
Places near Hersden
Other services in Hersden
Surface by surface
Movement & expansion joints
A movement joint must be able to stretch. We remove the failed sealant, fit backing and reseal with a low-modulus product.
Mouldy bath & shower sealant
Black mould inside the bead will not scrub out. All of it comes out, and the joint is treated and dried before anti-fungal sanitary silicone goes in.
Remedial sealant around Hersden
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.
Letting a property close to Sturry station? Then failed or mouldy sealant is worth putting right between tenancies, before it turns into a leak. If you look after a building such as Hersden Village Primary School, its toilets, changing areas and kitchens need their sealant renewed like any other building’s.
Hersden is about 4 miles south of Herne Bay, in Kent. For remedial sealant in and around Hersden, please phone 0345 464 0079 or send us an email for a quick quote. We cover Kent from our Crawley base. We cover 922 towns and villages across Kent, large and small. For nearby work, see our Chelmsford page.
Postcode districts we cover here for remedial sealant: CT3. Whether your property is on The Firs, The Sycamores and Chequer Tree Close or a nearby road, we can help. We also cover the places around Hersden: Westbere (1 mile south-west), Stodmarsh (1 mile south-east), Hoath (1 mile north), Knave's Ash (1 mile north) and Sturry (2 miles west). Larger places within reach include Canterbury (4 miles south-west), Margate (11 miles north-east), Dover (14 miles south-east), Ramsgate (11 miles east), Broadstairs (12 miles east) and Whitstable (6 miles north-west).
Local landmarks in Hersden
We work in homes and buildings around Frank Montgomery School, Spires Academy and Ye Olde Yew Tree Inn, among other places. The nearest railway station is Sturry station, about 1.9 miles south-west. Other landmarks nearby include Canterbury Castle (4.5 miles south-west) and St Martins Hospital (3.4 miles south-west). The countryside around Hersden includes West Blean and Thornden Woods.
Why it’s worth doing now in Hersden
DIY removal often leaves scratches and a film of residue, and the residue left behind stops the next bead bonding. Careful removal is most of a remedial job. In a smaller place like Hersden, wherever a wall is exposed, a failed outside joint is a real source of damp. Inside, a split seal lets water into floors and panels just as it would anywhere.
There are no prices on our website, because each job is priced on what it involves. Call for a quick quote and we will talk you through it.
Why choose Mr Mastic in Hersden
- Old sealant always removed completely
- Neat joints and a tidy finish
- Sealant colour chosen to suit
- Full insurance on every job
Quotes for remedial sealant in Hersden
For a quick quote, just ask. The main things that affect it are:
- When we can work, for business premises
- The old material and how stubborn it is
- How easy the joints are to reach
- Which sealant suits the joint
What it costs depends on the size of the job, how hard the old material is to remove and how easy the joints are to reach. You will have a clear quote before any work starts, so you know where you stand.
What to tell us for a quote
The more you tell us, the more accurate the quote. When you ask for a quote, tell us:
- Roughly how big the job is
- How we’d reach the joints
- The type of property
- What the problem is, such as mould, gaps, leaks or cracking
The more we know about the job, the more useful the quote. Let us know the location, the problem and roughly how many joints, and email photos if that is easy.
When to call us in Hersden
Silicone only bonds to surfaces that are clean and dry. Residue, moisture or dust left in the joint weaken the bond, so it starts lifting sooner than it should.
Any of these means the joints need attention:
- Sealant that came away because the surface wasn’t prepared
- A shower that leaks however often it’s resealed
- Kitchen joints letting water behind the worktop
- Smears and lumps from a botched reseal
In the older streets around Church of All Saints, older homes can move a little, which is hard on rigid grout and tired sealant.
Comparing quotes
- How much experience the applicator has
- What product goes in the joint
- Which colour the sealant will be
- What preparation is included
Work for landlords, hotels and businesses
We regularly work with letting and managing agents. Send the address, what’s needed and the access arrangements.
For anyone letting property in or around Hersden, several properties can go on one quote. Just tell us the addresses and what each one needs, and pictures by email help.
Should I try it myself first?
Not every job suits DIY: high-level joints, fire-rated gaps, external movement joints and big jobs need the right product, the right access and the right method.
A careful DIYer can reseal a simple joint, 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.
Hersden: your questions answered
Do you cover Hersden for remedial sealant?
Yes. Our work covers London and the South East, and Hersden is part of that. You can call 0345 464 0079 or email us and tell us what needs doing, and we’ll give you a clear quote.
Is Hersden within the area you cover?
Yes, Hersden is covered. Our work covers London and the South East, from towns to the smallest places. Longer journeys are simply planned in advance.
How long should I leave it?
Cure times vary by product. We tell you how long to leave it before we go.
Will it make a mess?
Not at all. We work neatly, protect the area around the joints and tidy up afterwards.
Do I have to be there?
That depends on where the joints are. For work indoors, someone needs to let us in, while outside work can sometimes be arranged differently.
I rent my home. Can I book you?
Of course. Check with your landlord; we can send the quote to them too.
Are you insured?
Yes. We’re fully insured, and we can confirm the details when we quote.
Where are you based?
We are a Crawley-based firm. Our area covers South East England, London and Scotland.