Kent · England
Remedial sealant & repairs in Hook Green, Kent
Removing failed, mouldy or leaking sealant and putting it right for homes and businesses in Hook Green and across Kent. ARBOMaster approved applicators, fully insured, with a 12-month guarantee.
- Torn expansion joints
- Decorators’ caulk around a bath or shower
- Black mould underneath the bead
Remedial sealant in Hook Green, done properly
If a joint fails again and again, something is causing it. Movement, the wrong product or a leak from somewhere else will defeat even a perfect bead. We look for the cause before we reseal. We work on failed movement joints, shrunken worktop sealant and leaking tray & enclosure joints, and common reasons people get in touch are sealant applied over old sealant that has lifted and dark patches showing through the sealant.
In a village or hamlet like Hook Green, 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.
You’re covered for a year from the day we finish. If there’s a problem with it, please phone 0345 464 0079 or drop us an email.
- Place
- Hook Green (DA13)
- Wider area
- Kent
- Cover
- 12 months on all our work
- Quote
- A clear price before any work starts
- Call
- 0345 464 0079
- Page updated
- 26 October 2026
How to look after the new joints
To keep the joints looking good and working properly:
- Always have old sealant cut out, not covered
- Deal with small splits early
- Keep the room well ventilated
- Clean sealant with mild products only
Ventilation keeps mould away from the new bead: use the extractor or open a window after showering.
Signs to act on: sealant lifting at the ends, a second bead visible on top of the first, black mould under the silicone, or stains below a bathroom. Each one is worth getting looked at.
When it is not the sealant
Before booking, it’s worth knowing the limits:
- Water damage behind tiles that needs a tiler
- A cracked shower tray or bath (that needs repair or replacing)
- Older mastics that may need an asbestos check before removal
If in doubt, phone 0345 464 0079 or drop us an email and we’ll say what we think.
Joints and surfaces we work on
- Botched or over-sealed joints
- Leaking tray & enclosure joints
- Expansion joints
- Mouldy bath & shower sealant
- Shrunken worktop sealant
- Failed movement joints
Places near Hook Green
Other services in Hook Green
Work for landlords, hotels and businesses
Failed sealant is one of the commonest items on a check-out report, and it’s quick to put right between tenancies. Several properties can go on one quote.
Water getting past a failed joint can damage the building, which is a bigger problem in a rented property. Keeping joints in good order is simple maintenance.
Hook Green homes and their sealant
Most of the South East has hard water, which leaves limescale on sealant, grout and fittings, and it has to be cleaned off before new sealant goes in.
For an older house near a landmark such as Church of St Nicholas, walls and floors in older homes can move, and sealant and grout show it first. 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 Sedley's Church of England Voluntary Aided Primary School, we reseal washrooms and kitchens in schools and businesses as well as homes.
Hook Green is about 2 miles south-west of Northfleet, in Kent. We provide remedial sealant to homeowners, landlords and businesses in Hook Green and nearby. Across Kent, we cover 922 places, and Hook Green is one of them. You can also see our page for London, about 19 miles away.
Work in DA13 is quoted and booked the same way as anywhere else. Remedial sealant is available to properties on Fred Mead, Barker Fields and Lambert Mews and the roads around them. Close by, we work in Southfleet (1 mile north-east), Betsham (1 mile north-west), Northfleet Green (1 mile east), Painters Ash (1 mile north-east) and Springhead (1 mile north). Further out, we also cover Maidstone (14 miles south-east), Dartford (5 miles north-west), Sevenoaks (11 miles south-west), Gravesend (3 miles north-east), Tonbridge (15 miles south) and Swanley (6 miles west).
Around Hook Green
In Hook Green, that means homes and buildings near Longfield Chalk Bank, Black Lion pub and Longfield Academy, among other places. For rail, the closest station is Longfield station, roughly 1.2 miles south-west. Other landmarks nearby include Bluewater (2.8 miles north-west) and Darent Valley Hospital (3 miles north-west). Green spaces nearby include Sawyers Lake.
Quotes for remedial sealant in Hook Green
The quote reflects the job in front of us. We look at:
- Any mould that needs treating
- How much old sealant there is and how hard it is to remove
- The number and length of the joints
- How easy the joints are to reach
No two jobs are quite the same, so each one gets its own quote. The number of joints, how easy they are to reach and the sealant needed all play a part.
Helping us quote
Before you ask for a quote, have a think about:
- Where the property is
- Any access issues, like height or stairs
- The type of property
- The problem you’ve noticed
Quotes start with a quick conversation. Tell us what’s wrong, where it is and how much there is, and we’ll explain how we’d tackle it. When it suits you, call 0345 464 0079 or drop us an email.
Can I do it myself?
If you do try it yourself, take your time over the preparation: remove every trace of old sealant, clean and dry the joint, and follow the product’s cure time. If it does not work out, we can still put it right.
Some sealant jobs are within reach of a careful DIYer, such as a straightforward joint indoors. The common mistakes are sealing over old sealant, sealing a damp joint and using far too much.
Your questions about remedial sealant in Hook Green
I let a flat near Longfield station. Can you help?
Yes. We work for letting agents and landlords as well as householders. Just ring 0345 464 0079 or send us an email with the address and what needs doing, and we’ll send you a clear quote.
Do you cover smaller places like Hook Green?
Yes, we do. Our work covers London and the South East, and smaller places are part of that. The journey is planned ahead, so it helps to know about access.
Where is Mr Mastic based?
We are a Crawley-based firm, with over 20 years’ experience. Our area covers South East England, London and Scotland.
Can you work on commercial sites?
Yes. We can plan bigger jobs in stages to suit the site.
What information do you need?
Only a few details: the address or postcode, what’s wrong and any access issues. After that, simply call 0345 464 0079 or send us an email.
Someone sealed over the old bead. Can you fix it?
Yes. We cut out all the layers and clean off the film, before resealing with a single bead.
Do you remove the old sealant?
Yes. We cut out all the old sealant and clean the joint.
Is it messy?
No. The area is protected while we work and cleaned up afterwards.
How it works
You do not need to clear the whole room or building before we come, just the space around the work. Everything nearby is protected, and the job takes a few hours for a typical bath or shower, longer where several layers have been applied in most cases. Somewhere like Hook Green 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.
- We look at how the sealant has failed and check for movement or a leak path.
- Every layer of old sealant is cut and cleaned out.
- We clean the joint, treat any mould and let it dry.
- Where the joint moves, backing and a flexible sealant suited to the movement go in.
- Finally we finish the joint and talk you through what we found.
Preparing for the visit
- Clear items away from the joints we are working on
- Mention any tricky access
- Tell us about any previous sealing or DIY attempts
How to get a quote
There’s no standard price list, as no two jobs are quite the same. Instead, we give you a clear price for your job. To arrange one, call 0345 464 0079 or drop us an email.
Read more
Leave it or put it right?
It’s easy to scratch acrylic, enamel or an uPVC frame cutting out old sealant, and the residue left behind stops the next bead bonding. Careful stripping is where most of our time goes. Where a wall is exposed, as many are in small places like Hook Green, wind-driven rain gets into any failed joint, and older walls, once damp, take a long time to dry.
Combining jobs into one visit is usually more efficient than separate visits. You’ll get one clear quote for the whole job.
Why choose Mr Mastic in Hook Green
- A 12-month guarantee on all work
- Sealant colour chosen to suit
- ARBOMaster approved applicator
- We never seal over old sealant
Take a look at how sealant jobs are priced or customer reviews.