Kent · England
Remedial sealant & repairs in Ash, Kent
Remedial sealant for Ash and the surrounding area: careful preparation, the right product and tidy work. Call for a quick quote.
- Decorators’ caulk around a bath or shower
- Sealant applied over old sealant that has lifted
- Gaps opening along the back of the worktop
Common questions in Ash
Do you work for landlords with property near Longfield station?
Yes. We work for landlords and letting agents as well as householders. You can call 0345 464 0079 or email us with the details for a clear quote.
Do you cover smaller places like Ash?
Yes, we do. We work across London and the South East, and smaller places are part of that. The journey is planned ahead, so it helps to know about access.
Which products do you use?
Each joint gets the product that suits it. Movement, water and weather all affect the choice, and we will tell you what we’re using.
What if the leak isn’t the sealant?
We check for that before we reseal. If we find the leak is elsewhere, we tell you before going further.
Are you ARBOMaster approved?
Yes. ARBOMaster is the approved applicator scheme for Arbo sealants, and we are part of it.
How much does remedial sealant cost in Ash?
We don’t publish prices, because the cost depends on the job: how much there is, what’s there now, how we reach it and what it needs. We agree the price before any work begins.
Is remedial work guaranteed?
Yes. Our 12-month guarantee covers the work, and we’re ARBOMaster approved.
Where is Mr Mastic based?
Our base is in Crawley, West Sussex, and we work across South East England, London and Scotland.
About our remedial sealant in Ash
With more than 20 years’ experience, our applicators have seen most of the ways sealant can fail. We’re ARBOMaster approved and fully insured, and every remedial job comes with a 12-month guarantee. If you have movement joints that have split or pulled away and black mould underneath the bead, we can put it right.
In a village or hamlet like Ash, 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 a one-year guarantee, wherever you are in Kent.
- Where
- Ash (TN15, DA3)
- Region
- Kent
- Cover
- A year, on every job
- Quote
- A clear price before work begins
- Telephone
- 0345 464 0079
- Page updated
- 26 October 2026
Also in Ash
What we are called out for in Ash
Sealant needs a clean, dry surface with no grease on it. Soap film, dust, damp or old residue stop it gripping, so it starts lifting sooner than it should.
Any of these means the joints need attention:
- Floor or wall movement joints that have failed
- Black mould underneath the bead
- Decorators’ caulk around a bath or shower
- Sealant peeling off a dusty or damp surface
Homes close to Parish Church of Saint Peter and Saint Paul include some older properties, and bathrooms in older houses have often been refitted more than once, with sealant laid over sealant.
What your quote should include
- When the joint can take water or movement
- Whether all the old sealant comes out first
- What happens if they find a problem under the old sealant
- Which colour the sealant will be
Ash homes and their sealant
Hard water is the norm across most of the South East, so limescale builds up on sealant, grout and fittings, and it has to be cleaned off before new sealant goes in.
If you let a flat or house near Longfield station, botched sealant from a previous quick fix is easier to strip out between tenants. For site and facilities teams at buildings such as New Ash Green Primary School, its toilets, changing areas and kitchens need their sealant renewed like any other building’s.
Ash is about 6 miles south-west of Northfleet, in Kent. Homes, rented property, offices and hotels in Ash is covered for remedial sealant, old or new, large or small. Every job comes with our one-year guarantee. We cover 922 towns and villages across Kent. You can also see our page for London, about 19 miles away.
Postcode districts we cover here for remedial sealant: TN15 and DA3. Streets in the area include Ash Road, The Street and Billet Hill. If you are just outside Ash, we cover West Yoke (1 mile north), Fawkham Green (1 mile north-west), Speed Gate (1 mile north-west), Stansted (2 miles south) and West Kingsdown (2 miles south-west). We also work in nearby towns such as Maidstone (12 miles south-east), Dartford (7 miles north-west), Sevenoaks (7 miles south-west), Royal Tunbridge Wells (15 miles south), Gravesend (6 miles north-east) and Tonbridge (11 miles south).
Near you in Ash
We work in homes and buildings around The White Swan Public House. The closest station to Ash is Longfield station, about 2.8 miles north of the centre. Other landmarks nearby include Darent Valley Hospital (5.6 miles north) and Eynsford Castle (3.6 miles west).
Surface by surface
Leaking trays & enclosures
A shower that leaks after resealing often has a tray that moves or an enclosure sealed on the wrong side. Both are checked before we reseal.
Mouldy bath & shower sealant
Mould that has grown into silicone doesn’t clean out for good. The sealant is cut out completely, the joint treated with a mould remover and dried before anti-fungal sanitary silicone goes in.
Honest limits
Sealant is not the answer to every problem, and we’ll tell you before any work starts. Sealant will not put right:
- Cracks in the fitting rather than the joint
- Older mastics that may need an asbestos check before removal
- Tiles that have come away from the wall
If in doubt, phone 0345 464 0079 or send us an email and we’ll say what we think before you book.
Where we work in Ash
- Failed movement joints
- Botched or over-sealed joints
- Leaking tray & enclosure joints
- Shrunken worktop sealant
- Expansion joints
- Mouldy bath & shower sealant
Work for landlords, hotels and businesses
We regularly work with letting and managing agents. Tell us the address, the job and how access works and we will give you a quote.
For anyone letting property in or around Ash, several properties can go on one quote. Just tell us the addresses and what each one needs, and pictures by email help.
How to look after the new joints
After the cure time, these simple habits help:
- Deal with small splits early
- Get the cause of a repeat leak found before resealing
- Look for stains below bathrooms now and then
- Use a soft cloth, not a scourer, on silicone
Leave the new joint to cure fully before it gets wet or moves: follow the cure time we give you.
A failing joint rarely gets better on its own. Every shower or downpour sends more water through, into floors, walls or ceilings. Sorting it early limits the damage.
Can I do it myself?
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. All the old material has to come out first.
Some sealant jobs are within reach of a careful DIYer, like a short, easy-to-reach joint indoors. The common mistakes are sealing over old sealant, sealing a damp joint and using far too much.
What we do, step by step
When we arrive, we look over the joints with you first, so you know exactly what we’re doing. Surfaces next to the work are protected before work begins. The work generally takes a few hours, depending on how many layers have to come out. Somewhere like Ash needs a little journey planning: tell us about narrow lanes, gates, long drives and where we can park. Everything for the job comes with us, so a second trip is avoided where possible.
- The failure is looked at first, so we know whether it’s sealant, movement or water from elsewhere.
- 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 are told about anything else we found.
How to prepare
- Plan for the work area to be out of bounds to pets and children
- Let us know about parking restrictions
- Mention any sign-in or site rules at work premises
Get a quote
Need a quote? Please ring 0345 464 0079 or send us an email with a few details. We will explain what we’d do and give you a clear quote before work begins.