Greater London · England
Fish Island Remedial Sealant
Failed sealant joints in Fish Island need attention? We remove the old material, prepare the joints and seal them properly, with a 12-month guarantee.
- Over-sealed joints coming away
- Caulk or the wrong sealant used in a wet area
- A shower that leaks however often it’s resealed
Surface by surface
Windows & doors
Smeared or badly matched mastic can be cut out and redone neatly, in a colour that suits the frame.
Over-sealed & botched joints
Botched joints sometimes have damaged edges from earlier scraping. We work carefully to avoid adding to it, and point out any existing damage.
Remedial sealant in Fish Island
Getting old sealant out properly is slow, careful work. 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. If you have decorators’ caulk around a bath or shower and dark patches showing through the sealant, we can help, on mouldy bath & shower sealant, botched or over-sealed joints and expansion joints alike.
Hard London water leaves limescale on sealant, grout and taps alike. In Fish Island, remedial sealant is as much about a room looking cared for as about keeping water out.
A one-year guarantee comes as standard, so you are covered after we’ve gone.
- Place
- Fish Island (E3, E9, E20)
- Region
- Greater London
- Guarantee
- One year on every job
- Price
- A clear quote up front
- Telephone
- 0345 464 0079
- Updated
- 26 October 2026
What we do, step by step
On the day, we start by going over the job with you, so you know exactly what we’re doing. We protect the surfaces around the joints before any work starts. The work generally takes a few hours for a typical bath or shower, longer where several layers have been applied. For a job in Fish Island, parking and access are the things to plan: let us know about parking, the floor we will be working on and any lift or shared entrance.
- First we work out whether the problem is the sealant, movement or a leak.
- Old beads and residue are removed down to clean surfaces.
- Mould is treated and the joint dried.
- The right product goes in, with backing where the joint moves.
- The joint is tooled and you are told about anything else we found.
Getting ready for the visit
- Clear items away from the joints we’re working on
- Keep pets and children clear of the area while we work
- For indoor joints, keep the area dry beforehand if you can
How to get a quote
There’s no standard price list, because every job is different. Instead, your job gets its own clear quote. To arrange one, phone 0345 464 0079 or send us an email.
Read more
What affects the quote in Fish Island
We quote each job individually. These are the things that affect it:
- Working hours on commercial sites
- How much old sealant there is and how hard it is to remove
- The product the joint needs
- The number of rooms or windows
Combining jobs into one visit normally makes better use of the time than several visits, so tell us about everything that needs sealing. We’ll give you a clear price for the lot.
What to tell us for a quote
When you call or email, these details help:
- Any previous sealing or DIY work
- The type of property
- How many joints, rooms or windows are involved
- Any access issues, like height or stairs
It all starts with a short chat. Describe the problem, the location and the size of the job, and we’ll talk you through what we’d do. When it suits you, call 0345 464 0079 or email us.
Nearby places to Fish Island
More services for Fish Island
What happens if it’s left?
Leaks that are left keep doing damage out of sight: soaked floorboards, ceiling stains below and blown plaster. Dealing with the joint now is a small job by comparison. In older London homes, water behind a failed joint soaks into brick and timber without much sign, and once it shows in Fish Island, the repair is bigger than a sealant job.
A few things move the cost up or down: the old material and how easily it comes out, any mould to treat, and whether the work is at height. We take all of that into account in your quote.
What you get with us
- Quality sealants from Arbo and Everbuild
- Rated 4.9 stars on Google
- A 12-month guarantee on all work
- More than 20 years in sealant work
Fish Island questions
Can worn sealant in a flat in Fish Island cause a leak downstairs?
Yes, and the first sign is often a stain on the ceiling below. Cutting out the old sealant and laying a new bead early stops it getting that far.
I let a flat near Hackney Wick station. Can you help?
Yes, rental work is part of what we do. You can ring 0345 464 0079 or email us with the address and a few details, and we will give you a fixed price before work begins.
Do you hold any approvals?
Yes. ARBOMaster is the approved applicator scheme for Arbo sealants, and we’re part of it.
Can you remove old sealant without damaging the bath?
Yes. We avoid heavy scraping and use the right cleaner for each surface, so the new sealant bonds cleanly.
Can you take off two layers of silicone?
Yes. We remove every layer; new silicone does not bond to old silicone, which is why over-sealing fails.
What should I tell you?
Only a few details: where it is, what you’ve noticed and how we reach it. After that, simply phone 0345 464 0079 or send us an email.
Is it worth trying it myself?
It depends on the job. High-level, external movement and fire-rated joints are professional jobs.
Do you take out the old sealant first?
Yes. All of the old material is cut out and the joint cleaned before applying anything new.
Can I do it myself?
The biggest DIY mistake is sealing over old sealant. New silicone won’t bond to old, so it peels away and traps moisture behind it. All the old material has to come out first.
A careful DIYer can reseal a simple joint, such as a straightforward joint indoors. Where it goes wrong is sealing over the old bead, working on a wet joint or overloading the gap.
What we’re called out for in Fish Island
Movement tears sealant that is not designed for it. A bath that flexes, a tray that rocks or a building joint that opens and closes split any bead that’s too stiff or too thin.
Any of these means the joints need attention:
- Thick, messy sealant smeared over tiles
- Sealant peeling off a dusty or damp surface
- Decorators’ caulk around a bath or shower
- Leaks that keep coming back after resealing
For an older house near a landmark such as St Mary of Eton, walls and floors in older homes can move, and sealant and grout show it first.
What your quote should include
- What product goes in the joint
- What insurance they hold
- How the colour is chosen
- Is VAT in the price?
What we can’t put right
New sealant can’t fix everything, and we’d rather say so up front. Sealant won’t put right:
- Cracks in the fitting rather than the joint
- Older mastics that may need an asbestos check before removal
- A tray or worktop that needs refixing first
If in doubt, phone 0345 464 0079 or send us an email and we’ll say what we think before booking.
What we seal
- Botched or over-sealed joints
- Shrunken worktop sealant
- Leaking tray & enclosure joints
- Expansion joints
- Mouldy bath & shower sealant
- Failed movement joints
What remedial sealant looks like in Fish Island
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. There are hotels and other places to stay in and around Fish Island. Hotel bathrooms are part of our work as well as homes, and can be done room by room.
Fish Island is in London, so parking needs planning: tell us about permits, visitor bays or off-street space when you book. Letting a property close to Hackney Wick station? Then failed or mouldy sealant is worth putting right between tenancies, before it turns into a leak.
Fish Island is about 1 mile west of Stratford, in Greater London. If you need remedial sealant in Fish Island, it’s easy to get a quote: please call 0345 464 0079 or email us. We’re based in Crawley and cover Greater London. 764 places in Greater London are on our list, large and small.
Work in E3, E9 and E20 works the same way as everywhere else we cover. If you need remedial sealant at a property on Wick Lane, Dace Road and Wyke Road or anywhere close by, we can help. Close by, we work in Hackney Wick (1 mile north), Old Ford (1 mile south), Donnybrook Quarter (1 mile south-west), Bow (1 mile south) and East Village (1 mile north-east). We also work in nearby towns such as London (4 miles south-west), City of Westminster (6 miles west), Marylebone (6 miles west), Kensington (8 miles west), St Pancras (4 miles west) and Shoreditch (3 miles west).
Landmarks near Fish Island
In Fish Island, that means homes and buildings near Mulberry UTC, Grove Hall Park and The Lea Tavern and the streets around them. There’s a railway station in Fish Island itself: Hackney Wick station. Well-known places in the area include V&A East (less than half a mile east) and Tower of London (3.1 miles south-west). Green spaces nearby include Hollow Pond and Tower Hill.