Greater London · England
Remedial sealant & repairs in Plumstead, Greater London
We cover Plumstead for removing failed, mouldy or leaking sealant and putting it right. Old sealant removed completely, joints prepared properly and every job guaranteed for a year.
- Sealant that came away because the surface wasn’t prepared
- Movement joints that have split or pulled away
- Sealant applied over old sealant that has lifted
Remedial sealant for homes and businesses in Plumstead
Not every leak is a sealant leak. A cracked tray, a failed shower valve or a leaking waste can look just the same. When the fault is elsewhere, we say so instead of resealing for the sake of it. If you have black mould underneath the bead and sealant applied over old sealant that has lifted, we can put it right, whatever the surface.
Much of London’s older housing is Victorian and Edwardian terraces, many of them now split into flats, and bathrooms were often squeezed into small rooms. Small, steamy rooms are where mould gets into sealant and grout fastest.
The work is guaranteed for twelve months. If something isn’t right with it in that time, tell us and we will put it right.
- Where
- Plumstead (SE18, SE28, E16)
- Wider area
- Greater London
- Cover
- A year, on every job
- Price
- A clear quote up front
- Call
- 0345 464 0079
- Last updated
- 26 October 2026
DIY versus a professional finish
The biggest DIY mistake is sealing over old sealant. New silicone will not bond to old, so it lifts and traps water and mould underneath. All the old material has to come out first.
If you are set on DIY, put the effort into preparation: take out all the old sealant, make sure the joint is clean and dry, and give it the full cure time. If it doesn’t work out, we can still put it right.
FAQs for Plumstead
Is parking a problem for a job in Plumstead?
Parking in Plumstead, as in most of London, takes a little planning: a visitor permit or a nearby bay makes the day run more smoothly.
Can you help a landlord with a rental near Plumstead 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.
Will the old sealant be removed?
Yes, every time. New sealant won’t bond properly to old, so the joint is cleaned back first.
Do the sealants smell?
Some sealants have a smell while they cure, but it fades. Opening a window helps.
Do I need to be at home?
If the work is inside, we need someone to let us in. Once we have agreed the job, you don’t need to watch us work.
Someone sealed over the old bead. Can you fix it?
Yes. Both layers come out; over-sealing fails because silicone will not bond to silicone.
Do you fix expansion and movement joints?
Yes. The depth is set with backing so the sealant only bonds to the two sides.
Someone resealed my shower and it’s leaking again. Can you help?
Yes. We’ll take all the sealant out, look for why it failed and reseal it properly.
How we quote for remedial sealant
The quote reflects the job in front of us. We take into account:
- Whether old sealant or filler has to be cut out
- How many areas need sealing
- Working hours on commercial sites
- How easy the joints are to reach
There are no prices on our website, because each job is priced on what it involves. Call for a quick quote.
What to tell us for a quote
You don’t need to know the technical terms. It helps if you can tell us:
- The problem you’ve noticed
- Where the job is, and your postcode
- A few pictures by email, if you can
- Access, such as stairs, a lift or height
It all starts with a short chat. Tell us what’s wrong, where it is and how much there is. When it suits you, call 0345 464 0079 or send us an email.
Keeping the joints in good condition
Once the sealant has cured, a few habits help it last:
- Run the fan after every shower
- Keep movement joints clear of mortar and paint
- Never seal over old silicone
- Have loose fittings fixed before resealing
Give the new sealant its full cure time: follow the cure time we give you.
If a joint has failed more than once, stop resealing it. Have someone find out why, or the next bead will go the same way.
For landlords and businesses
Housing providers, facilities teams and property managers book us too in Plumstead and across Greater London. We can quote a run of properties together.
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.
Plumstead homes and their sealant
London’s water is hard, so limescale builds up on sealant, grout and fittings. In a London flat, water from a failed bath or shower seal can reach the neighbours below, which is why it’s worth fixing early.
Plumstead is in London, so parking needs planning: tell us about permits, visitor bays or off-street space when you book. If you look after a building such as South Rise Primary School, its toilets, changing areas and kitchens need their sealant renewed like any other building’s.
Plumstead is about 8 miles east of London, in Greater London. Every kind of property in Plumstead can book us for remedial sealant, old or new, large or small. Every job comes with our one-year guarantee. Plumstead is one of 764 places in Greater London we cover. For nearby work, see our London page.
All of SE18, SE28 and E16 is within our area for remedial sealant, from the main roads to the quietest streets. We cover properties on Moy Lane, Love Lane and Tuam Road. Being close to the A206, Plumstead is simple for us to get to. Close by, we work in Woolwich (1 mile west), Shooter's Hill (1 mile south-west), East Wickham (1 mile south-east), Charlton (2 miles west) and New Charlton (2 miles west). Larger places within reach include London (8 miles west), City of Westminster (10 miles west), Marylebone (10 miles west), Kensington (12 miles west), St Pancras (9 miles west) and Shoreditch (7 miles west).
Near you in Plumstead
We work in homes and buildings around Shooters Hill Sixth Form College, Plumstead Manor School and Plumstead Common and the streets around them. Plumstead has its own railway station: Plumstead station. Other landmarks nearby include British Hospital for Mothers and Babies (1.3 miles west) and Greenwich Castle (3.6 miles west). Open spaces near Plumstead include Gilbert's Pit.
How the visit works
We bring everything the job needs with us. Once we’ve agreed what’s being done, the area is protected and the work begins. It normally takes a few hours for a typical bath or shower, longer where several layers have been applied. In a London area like Plumstead, the main things to plan are parking and access: let us know about parking, the floor we will be working on and any lift or shared entrance.
- We start by checking the joint for movement, leaks and the reason it failed.
- We strip the joint completely, removing any layers below.
- The joint is cleaned, treated for mould and left to dry.
- Moving joints get backing and a flexible sealant to suit.
- Finally we finish the joint and talk you through what we found.
Preparing for the visit
- Try not to wet indoor joints just before the visit
- Tell us if parking is tricky
- Clear the area around the work
Ask for a quote
We do not publish a price list, because every job is different. Instead, we give you a clear quote for your job. To get started, call 0345 464 0079 or email us.
Related advice
What we can’t put right
A few problems are outside what sealant work can do:
- Plumbing leaks behind walls or under trays
- A tray or bath that is cracked
- Older mastics that may need an asbestos check before removal
Not sure which it is? You can ring 0345 464 0079 or drop us an email and we’ll tell you honestly.
What we seal
- Failed movement joints
- Expansion joints
- Shrunken worktop sealant
- Botched or over-sealed joints
- Mouldy bath & shower sealant
- Leaking tray & enclosure joints
Common problems we fix in Plumstead
Some joints fail because water is reaching them from behind. A leaking valve, a failed waste or cracked grout feeds water behind the bead, so the silicone goes mouldy or lets go.
People normally contact us after spotting one of these:
- Products that weren’t meant for the joint
- Leaks that keep coming back after resealing
- A second bead peeling off the first
- Torn expansion joints
Letting a property close to Plumstead station? Then failed or mouldy sealant is worth putting right between tenancies, before it turns into a leak.
What your quote should include
- Which sealant they’ll use, and why
- What happens if the job turns out different
- How the joint is cleaned and prepared
- Whether they seal over old material or remove it