Greater London · England
Bathroom Resealing in North Woolwich
Bathroom resealing for North Woolwich and the surrounding area: careful preparation, the right product and tidy work. Call for a quick quote.
- Two layers of silicone, both failing
- Lumpy, uneven sealant from a DIY attempt
- Water getting behind the kitchen upstand
FAQs for North Woolwich
Can parking be tricky for a visit in North Woolwich?
London parking needs a little planning, so let us know about permits, bays or a driveway when you book. The visit is then planned around what’s available.
I live in a flat in North Woolwich. Can a failed seal leak into the flat below?
It can, yes: water that gets past a split bead or cracked grout often runs under the tray and shows on the ceiling below. Replacing the sealant and grout before that happens is much less trouble than repairing a neighbour’s ceiling.
Do you reseal kitchen worktops and sinks too?
Yes. Worktops, sinks and splashbacks are all part of the job, in a kitchen-suitable sealant, matched to the worktop where it’s on show.
Where do you work from?
We’re based in Crawley, and we cover South East England, London and all of Scotland.
Does someone need to be in?
Access is agreed with you when the job is booked. For inside work, that normally means someone being in.
Is it OK to put new sealant on top of the old bead?
No. New silicone won’t bond to old silicone, so it peels away and hides mould and water. We always take the old sealant out completely.
I’m a tenant. Can you help?
Of course. Check with your landlord; we can send the quote to them too.
What colours of sealant can you use?
We can use white, clear or a colour to suit. Where the joint is on show, we match it to the surface.
Bathroom resealing in North Woolwich
With over 20 years in the trade, we reseal baths, showers and kitchens in homes across North Woolwich. We are ARBOMaster approved and fully insured, and every job carries our 12-month guarantee. If you’re dealing with a joint torn by a bath that flexes and water getting behind the bath panel, we can put it right, whatever the surface.
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 Woolwich, that is a good reason to put tired sealant and grout right early.
Our work is backed for twelve months, in North Woolwich and everywhere else we cover.
- Place
- North Woolwich (SE18, E16, E6)
- Wider area
- Greater London
- Guarantee
- 12 months on all our work
- Quotes
- A clear quote up front
- Telephone
- 0345 464 0079
- Page updated
- 26 October 2026
Should I try it myself first?
A DIY attempt doesn’t rule out a professional job. We cut it out and start again, so tell us about it when you ask for a quote.
Sealing over old silicone is the commonest DIY error. 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.
North Woolwich homes and their sealant
London has hard water, which leaves limescale on sealant, grout and taps, and it has to be cleaned off before new sealant goes in. 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.
Homes close to St John's Church include some older properties, and walls and floors in older homes can move, and sealant and grout show it first. For site and facilities teams at buildings such as Oasis Academy Silvertown, we reseal washrooms and kitchens in schools and businesses as well as homes. If you let a flat or house near Woolwich Dockyard station, mouldy sealant is one of the first things a new tenant notices, so it’s worth renewing between lets.
North Woolwich is about 1 mile north of Woolwich, in Greater London. Across the SE18 area, our applicators can take on bathroom resealing. 764 places in Greater London are on our list, large and small. London is on our list too, about 7 miles from North Woolwich.
All of SE18, E16 and E6 is covered for bathroom resealing. Local streets include Drew Road, Tate Road and Pier Road, and we cover them all. We also cover the places around North Woolwich: Cyprus (1 mile north), Royal Docks (1 mile north-west), Beckton (1 mile north-east), Silvertown (1 mile west) and Custom House (1 mile west). We also work in nearby towns such as London (7 miles west), City of Westminster (9 miles west), Marylebone (9 miles west), Kensington (11 miles west), St Pancras (8 miles west) and Shoreditch (6 miles west).
Near you in North Woolwich
In North Woolwich, that means homes and buildings near Beckton District Park, Drew Primary School and The Mitre pub, among other places. The closest station to North Woolwich is Woolwich Dockyard station, about 0.7 miles south of the centre. Other landmarks nearby include British Hospital for Mothers and Babies (0.8 miles south-west) and Gallions Reach Shopping Park (1.1 miles north-east). Not far away are Gilbert's Pit.
The process
You don’t need to clear the whole room or building, only the area right around the joints. We protect the rest, and the job takes around two hours for one bath or shower, longer for a whole bathroom in most cases. In a London area like North Woolwich, the main things to plan are parking and access: tell us about permits, visitor bays or off-street space, which floor we’re working on and whether there’s a lift.
- We look at every joint first and check for movement or leaks.
- The old silicone is cut out completely, along with the film it leaves on the tiles.
- Joints are degreased and any mould is treated.
- With the joint dry, and any bath loaded with water, a single bead of anti-fungal silicone is applied.
- We tool the bead to a neat finish and give you the cure time, normally around 24 hours.
Getting ready for the visit
- Mention any tricky access
- Let us know if you’ve seen damp or leaks
- Move anything stored near the joints
How to get a quote
Getting a quote is simple: tell us what needs doing and where and its rough size. Photos by email help us understand the job, and we will come back to you with a quote.
Read more
Keeping the joints in good condition
Good habits help new joints last longer. Our tips:
- Dry the bead with a towel now and then
- Dry worktop joints after washing up
- Run the extractor fan during and after every shower
- Keep scourers and sharp tools away from the bead
Wipe up standing water along the worktop joint and keep hot pans off the bead. The drier the joint stays, the longer it lasts.
A split bead lets water through every time the bath or shower is used. Left alone, it soaks into the floor, the wall behind the tiles or the ceiling below. Resealing early stops it.
Different surfaces, different methods
Baths
The long joint down the side of a bath is where most leaks start, particularly where there’s a shower over the bath. It gets one smooth bead of anti-fungal silicone, tooled so water cannot sit on it.
Sinks & splashbacks
Next to the sink, the sealant has to cope with constant water, and a food-safe product where it’s needed. The joint is laid neatly so it’s easy to wipe.
Places near North Woolwich
What else we do in North Woolwich
Honest limits
Before you book, it’s worth knowing the limits too:
- Cracked or missing grout between tiles (that’s regrouting)
- Water coming from the plumbing rather than the joint
- Tiles that have come away from the wall
If in doubt, ring 0345 464 0079 or send us an email and we’ll say what we think before you book.
Where we work in North Woolwich
- Shower trays & enclosures
- Basins & vanity units
- Sinks & splashbacks
- Wet rooms
- Baths
- Kitchen worktops & upstands
Work for landlords, hotels and businesses
If you manage several properties in or around North Woolwich, several properties can be quoted together. Send us the addresses and the work at each.
We also work for businesses, from offices to washrooms and kitchens. On commercial sites, working times can be discussed when we quote.
What happens if it’s left?
Leaving a split or mouldy bead only stores up trouble. Once water is behind the bath, it can reach floorboards, panels and the ceiling underneath, turning a small job into a building repair. In a flat in North Woolwich, failed sealant seldom stays inside your own four walls: water from a shower or window joint can reach the flat below, and gaps in fire-stopping matter to everyone in the building.
Leaving a failed joint usually makes the job bigger, not smaller, because water and mould keep working on it. If you’re unsure, ring 0345 464 0079 or drop us an email and we will give you an honest view and a quote.
Why choose Mr Mastic in North Woolwich
- Any old sealant cut out fully, not covered over
- White, clear, grey or coloured to suit, where the product allows
- Approved under the ARBOMaster scheme
- Sealant colour chosen to suit
Take a look at our cost guide or our reviews.