Greater London · England
Remedial sealant & repairs in North End, Greater London
Removing failed, mouldy or leaking sealant and putting it right for North End, backed by a 12-month guarantee. Call for a quick quote.
- Worktop sealant that has shrunk and split
- Floor or wall movement joints that have failed
- Black mould underneath the bead
Remedial sealant in North End
Two decades of sealant work means we recognise most failures quickly. We’re fully insured ARBOMaster approved applicators, and remedial work carries our one-year guarantee. We work on botched or over-sealed joints, shrunken worktop sealant and mouldy bath & shower sealant, and common reasons people get in touch are floor or wall movement joints that have failed and over-sealed joints coming away.
Across London, a large share of homes are flats, conversions or mansion blocks, so a bathroom is often directly above a neighbour’s ceiling. In North End, that’s a good reason to put tired sealant and grout right early.
The work is covered for a year after we finish. If there’s a problem with it, please phone 0345 464 0079 or email us.
- Where
- North End (DA8, DA1, DA7)
- Region
- Greater London
- Cover
- A year, on every job
- Quotes
- A clear quote up front
- Call
- 0345 464 0079
- Last updated
- 26 October 2026
Remedial sealant in North End: local notes
London has a lot of flats and conversions, and a failed shower or bath seal in one can show up on the ceiling below, which is why it’s worth fixing early. London’s water is hard, so limescale builds up on sealant, grout and fittings.
For an older house near a landmark such as St. Augustine's Church, older homes can move a little, which is hard on rigid grout and tired sealant. Schools such as St. Paul's (Slade Green) Church of England Primary School are buildings too, and we reseal washrooms and kitchens in schools and businesses as well as homes.
North End is about 2 miles north-west of Dartford, in Greater London. If you need remedial sealant in North End, it’s easy to get a quote: please call 0345 464 0079 or email us. We cover Greater London from our Crawley base. Across Greater London, we cover 764 places, North End among them. We also work in London, about 13 miles from North End.
Postcode districts we cover here for remedial sealant: DA8, DA1 and DA7. Remedial sealant is available to properties on Oak Road, Elm Road and Moat Lane and the roads around them. We also cover the places around North End: Slade Green (1 mile east), Barnes Cray (1 mile south), Bexley Riverside (1 mile west), Barnehurst (1 mile west) and Northumberland Heath (1 mile west). Larger places within reach include London (13 miles west), City of Westminster (15 miles west), Marylebone (15 miles west), St Pancras (14 miles west), Shoreditch (12 miles west) and Walthamstow (13 miles north-west).
Near you in North End
Around North End, our work takes us to homes and buildings near Railway Tavern, Braeburn Park and Haberdashers' Aske's Crayford Academy. There’s a railway station in North End itself: Slade Green station. Well-known places in the area include Erith Museum (1.2 miles north-west) and Erith and District Hospital (1.4 miles north-west). For a walk, there’s Wansunt Pit.
Looking after it afterwards
Good habits help new joints last longer. Our tips:
- Act on a lifting corner straight away
- Look for stains below bathrooms now and then
- Keep bleach and abrasives off the bead
- Have loose fittings fixed before resealing
Clean gently: a mild cleaner and a soft cloth, with no blades or scourers.
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.
Also near North End
More services for North End
The process
On the day, there’s very little for you to do. Show us the job and we’ll take it from there. The job generally takes a few hours for a typical bath or shower, longer where several layers have been applied from start to finish. In a London area like North End, the main things to plan are parking and access: tell us about permits, visitor bays or off-street space, which floor we are working on and whether there’s a lift.
- We protect the surfaces around the joint.
- The botched or failed sealant is cut away completely.
- The joint is degreased and checked for movement and leaks.
- Once dry, a suitable sealant is applied and tooled.
- We give you the cure time and explain what caused the failure.
Getting ready for the visit
- Mention any tricky access
- Clear items away from the joints we’re working on
- Plan for the work area to be out of bounds to pets and children
Get a quote
It all starts with a short chat. Describe the problem, the location and the size of the job, and we’ll explain how we’d tackle it. Whenever you are ready, phone 0345 464 0079 or drop us an email.
Related advice
What sealant work can’t fix
To be straight with you, some problems need a different trade:
- Water damage behind tiles that needs a tiler
- Old mastic in a building from before 2000 that should be checked for asbestos before it’s disturbed
- Plumbing leaks behind walls or under trays
Not sure which it is? You can phone 0345 464 0079 or send us an email and we’ll tell you honestly.
What we seal
- Expansion joints
- Leaking tray & enclosure joints
- Botched or over-sealed joints
- Mouldy bath & shower sealant
- Shrunken worktop sealant
- Failed movement joints
Common problems we fix in North End
A lot of failed joints have been sealed over rather than replaced. New silicone can’t stick to the old bead, so the new layer peels, and damp and mould settle between them.
The most common problems we see are:
- Leaks that keep coming back after resealing
- Kitchen joints letting water behind the worktop
- Beads that never stuck properly
- A second bead peeling off the first
Rented homes near Slade Green station change hands often, and botched sealant from a previous quick fix is easier to strip out between tenants.
Questions to ask before booking
- How the surfaces are prepared before sealing
- Is the old sealant removed completely?
- Is VAT in the price?
- How the colour is chosen
Questions from North End
Is parking a problem for a job in North End?
It can be, so it helps to tell us about permits, visitor bays or off-street space when you book. The visit is then planned around what’s available.
Do you work for landlords with property near Slade Green station?
Yes. We work for landlords and agents as well as homeowners. 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.
Can I do it myself?
You can, for simple jobs. The key is preparation: remove all the old material and work on a clean, dry joint. We can always put it right if it fails.
What sealant do you use?
Quality sealants from brands including Arbo and Everbuild, picked for each joint. We explain the product when we quote.
Is there any odour?
There can be a smell while the sealant cures, but it fades. Ventilation helps.
Are you an approved applicator?
Yes. Mr Mastic is an ARBOMaster approved applicator, and we are fully insured.
What information do you need?
The location, the problem and the rough size of the job. If you can, email a few pictures.
Do you cover North End?
Yes. From our base in Crawley, we cover South East England, London and all of Scotland, North End included.
Should I try it myself first?
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.
Sealing over old silicone is the commonest DIY error. Silicone doesn’t stick to old silicone, so it peels away and traps moisture behind it. Everything old must be removed first.
Why act early in North End
It’s easy to scratch acrylic, enamel or an uPVC frame cutting out old sealant, and any film left behind stops new sealant sticking. Careful removal is most of a remedial job. In London conversions, one flat’s bathroom is often above another flat’s ceiling, so a small leak from tired sealant can mean a neighbour’s ceiling and a lot of disruption. Dealing with it early is far simpler for homes in North End.
No two jobs are quite the same, so we quote each one individually. The number of joints, how easy they are to reach and the sealant needed all play a part, and we’ll explain the quote if you ask.
Why book with us
- Experience in homes, commercial sites and hotels
- 180+ five-star Google reviews
- Anti-fungal silicone where joints get wet
- Colour agreed with you before any work starts
Read our cost guide and customer reviews.
For landlords and businesses
Businesses can book us for washrooms, kitchens, offices and more. On commercial sites, working times can be discussed when we quote.
If you manage several properties in or around North End, several properties can be quoted together. Just tell us the addresses and what each one needs, and pictures by email help.