Greater London · England
Remedial sealant & repairs in Wapping, Greater London
Removing failed, mouldy or leaking sealant and putting it right for homes and businesses in Wapping and across Greater London. Fully insured, ARBOMaster approved and guaranteed for a year.
- Floor or wall movement joints that have failed
- Caulk or the wrong sealant used in a wet area
- Dark patches showing through the sealant
Remedial sealant in Wapping
Two decades of sealant work means we recognise most failures quickly. We are ARBOMaster approved and fully insured, and every remedial job comes with a 12-month guarantee. We are often asked to deal with torn expansion joints and smears and lumps from a botched reseal, on failed movement joints, shrunken worktop sealant and mouldy bath & shower sealant.
London’s water is hard, so limescale builds up along sealant lines, in grout and on fittings. In Wapping, remedial sealant is as much about a room looking cared for as about keeping water out.
There’s a 12-month guarantee on every job, whatever its size.
- Place
- Wapping (E1, E1W, SE16)
- Region
- Greater London
- Cover
- One year on every job
- Quote
- A clear quote up front
- Phone
- 0345 464 0079
- Page updated
- 26 October 2026
Surface by surface
Worktops & kitchens
If a worktop moves when you lean on it, the sealant will keep splitting. That needs refixing before resealing, which we’ll point out.
Leaking trays & enclosures
When failed joints are the cause, they’re all cut out and renewed, tray edges and screen profiles included.
Can I do it myself?
If you’ve already had a go yourself, that is fine. We cut it out and start again.
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.
Honest limits
A few problems are outside what sealant work can do:
- Movement from fittings that are not supported
- Leaks from a shower valve, waste or pipework (a plumber’s job)
- Old mastic in a building from before 2000 that should be checked for asbestos before it’s disturbed
If you are not sure, just ring 0345 464 0079 or drop us an email and we’ll give you a straight answer.
Where we work in Wapping
- Shrunken worktop sealant
- Botched or over-sealed joints
- Failed movement joints
- Leaking tray & enclosure joints
- Mouldy bath & shower sealant
- Expansion joints
What affects the cost of remedial sealant
We don’t publish a price list. What we look at:
- Whether the work is at height
- The old material and how stubborn it is
- How many areas need sealing
- The size of the job
What it costs depends on how much there is to do, 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.
Helping us quote
The more you tell us, the more accurate the quote. When you get in contact, it helps to mention:
- Roughly how big the job is
- The address or postcode of the job
- Photos by email, if that’s easy
- What the problem is, such as mould, gaps, leaks or cracking
Quotes start with a quick conversation. Describe the problem, the location and the size of the job. When it suits you, ring 0345 464 0079 or drop us an email.
Nearby places to Wapping
Also in Wapping
Common problems we fix in Wapping
All sealant wears out eventually. Over the years it shrinks, hardens and gets colonised by mould, especially in damp, poorly aired rooms. At that point it has to come out.
These are the problems we’re asked about most:
- Gaps opening along the back of the worktop
- Mould trapped under a layer of silicone
- Torn expansion joints
- Caulk or the wrong sealant used in a wet area
If you look after a building such as St Mellitus College, washroom and kitchen sealant there needs the same care as at home, and schools and businesses are part of our work as well as homes.
Questions to ask before booking
- How the joint is cleaned and prepared
- What the quote includes, VAT included or not
- How hidden problems are handled
- The length of the guarantee
How the visit works
All our tools and materials come with us in the van, so there’s nothing for you to buy. After a quick look at the joints together, we protect the area and start. Most jobs take a few hours for a typical bath or shower, longer where several layers have been applied. Parking in much of London is by permit or pay-and-display, so it helps to know what’s near you in Wapping. A visitor permit or a nearby bay makes the visit run more smoothly.
- 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.
- We treat any mould and dry the joint thoroughly.
- The right product goes in, with backing where the joint moves.
- The joint is tooled and you’re told about anything else we found.
Preparing for the visit
- Mention any tricky access
- For indoor joints, keep the area dry beforehand if you can
- On commercial sites, let us know about site rules
Getting a quote
For a quote, phone 0345 464 0079 or email us with the location and a short description of the problem. You’ll have a clear quote before work begins.
Related advice
How to look after the new joints
Simple care keeps the joints in good condition. We recommend:
- Keep movement joints clear of mortar and paint
- Never seal over old silicone
- Run the fan after every shower
- Ask why a joint failed before redoing it
Keep an eye on the joint at first, especially if movement was the problem. Should anything change, call 0345 464 0079 or drop us an email.
If a joint has failed more than once, stop resealing it. Have someone find out why, otherwise the next attempt will fail too.
Wapping questions
Can you help a landlord with a rental near Wapping station?
Yes, landlords and agents are among the people we work for. You can phone 0345 464 0079 or drop us an email with the details for a clear quote.
Do you work in hotels near Wapping?
Yes, hospitality work, including hotels, is part of what we do. Jobs can be programmed room by room, with out-of-hours working possible to arrange.
Does remedial work come with a guarantee?
Yes, with our one-year guarantee. Where we have flagged another fault, it needs fixing for the joint to last.
Do I have to be there?
We need access to the joints, so we will agree that with you when we book. For inside work, that normally means someone being in.
Do you have insurance?
Yes. We are fully insured, with over 20 years’ experience in sealant work.
Where is Mr Mastic based?
We work from Crawley. Our applicators cover Wapping, along with the rest of our area.
Will there be a smell?
That depends on the sealant. Some smell for a while, some hardly at all.
Can you match the sealant colour?
Yes. White, clear and grey are common, and other colours are available for many products, and we will agree it with you first.
Remedial sealant around Wapping
There are hotels and other places to stay in and around Wapping. As well as homes, we work in hotel bathrooms, where resealing and regrouting can be done room by room. In a London flat, water from a failed bath or shower seal can reach the neighbours below, so tired sealant is best dealt with early.
In the older streets around St Peter's, older homes can move a little, which is hard on rigid grout and tired sealant. If you let a flat or house near Wapping station, a joint that keeps failing is best fixed properly while the property is empty.
Wapping is about 1 mile south-east of Whitechapel, in Greater London. If you need remedial sealant in Wapping, it’s easy to get a quote: please call 0345 464 0079 or drop us an email. We’re based in Crawley and cover Greater London, Wapping included. 764 places in Greater London are on our list, from the larger towns to small villages.
Work in E1, E1W and SE16 works the same way as everywhere else we cover. If you need remedial sealant at a property on West Lane, Tunnel Road and Glamis Road or a nearby road, our applicators can take on the job. Being close to the A101 and A1210, Wapping is easy for our applicators to reach for remedial sealant. We also cover St George in the East (1 mile north-west), East End of London (1 mile north-east), Shadwell (1 mile east), Whitechapel (1 mile north-west) and Ratcliff (1 mile east). Larger places within reach include City of Westminster (4 miles west), Marylebone (4 miles west), Kensington (6 miles west), St Pancras (3 miles north-west), Walthamstow (6 miles north) and Hampstead (6 miles north-west).
What’s near Wapping
In Wapping, that means homes and buildings near Town of Ramsgate pub, William Curtis Ecological Park and Bishopsgate Institute Special Collections and Archives, among other places. Also close by are St Mary-at-Hill (1 mile west), Mulberry School for Girls (0.5 miles north) and Hermitage Primary School (within half a mile south-west). Wapping has its own railway station: Wapping station. Well-known places in the area include The Royal London Hospital (0.7 miles north) and Tower of London (0.7 miles west). For a walk, there’s St. James's Park Lake and Tower Hill.