Greater London · England
East Dulwich Bathroom Resealing
Bath, shower, basin, wet room, worktop and sink resealing in East Dulwich, with a one-year guarantee on every job. Call for a quick quote.
- Smears of silicone across the tiles
- Black mould in the silicone that won’t clean off
- Two layers of silicone, both failing
Bathroom resealing in East Dulwich
Before a bath is sealed, it’s filled with water. A full bath sits slightly lower than an empty one, so the bead is not stretched the first time someone gets in. Quick jobs often leave it out, and it makes a real difference. Typical jobs include smears of silicone across the tiles and sealant that has split, shrunk or peeled away, across shower trays & enclosures, sinks & splashbacks and kitchen worktops & upstands.
London homes include a lot of flats, conversions and mansion blocks, and many bathrooms sit right above someone else’s ceiling. In East Dulwich, that’s a good reason to put tired sealant and grout right early.
We guarantee the work for a year. If something is not right with it in that time, tell us and we’ll put it right.
- Location
- East Dulwich (SE5, SE22, SE15)
- Region
- Greater London
- Guarantee
- 12 months on all our work
- Quote
- A clear price before we start
- Phone
- 0345 464 0079
- Last updated
- 26 October 2026
Landlords, agents and businesses in East Dulwich
Landlords and letting agents in East Dulwich can book us as well as householders. Sealant work between tenants is a simple way to keep a property in good order.
Letting agents often deal with us directly. Tell us the address, the job and how access works and we’ll quote.
Surface by surface
Kitchen worktops & upstands
Upstands and back edges are cut out, cleaned of grease and resealed, because cooking grease stops sealant bonding. The extra cleaning is what makes the bead last.
Baths
A bath shifts slightly every time it’s filled, so we fill it with water before sealing. The joint is then laid with the bath at its lowest point.
East Dulwich: your questions answered
I live in a flat in East Dulwich. Can a failed seal leak into the flat below?
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.
Do you work for landlords with property near East Dulwich station?
Yes, landlords and agents are among the people we work for. You can call 0345 464 0079 or email us with the details for a clear quote.
Can I choose the colour of the sealant?
White and clear are the most common choices, and other colours are available to suit tiles, trays and worktops. Let us know your preference when you ask for a quote.
Can you do several jobs on one visit?
Yes, we can. Several rooms, windows or areas can go on one quote.
Can I do it myself?
That depends on the joint. High-level, external movement and fire-rated joints are professional jobs, while a short indoor joint may be within reach.
Is the work guaranteed?
Yes. All our work comes with a 12-month guarantee.
Where is Mr Mastic based?
We’re based in Crawley, West Sussex, and we work across South East England, London and Scotland.
Does someone need to be in?
We need access to the joints, so we’ll agree that with you when we book. For inside work, that normally means someone being in.
Also near East Dulwich
Also in East Dulwich
Keeping the joints in good condition
A little care helps the new joints last. We recommend:
- Run the extractor fan during and after every shower
- Check the joints every few months for splits or lifting
- Dry worktop joints after washing up
- Let new sealant cure fully before it gets wet
Wipe up standing water along the worktop joint. The drier the joint stays, the longer it lasts.
A few black dots in the silicone soon become a black line. Once it’s deep in the silicone, cleaning generally will not remove it, and nearby grout often goes the same way. Replacing the sealant early keeps the job small.
When something else is needed
Honest advice matters more to us than a booking, so here’s what new sealant will not do:
- Loose or hollow tiles, or failed tanking behind them
- A cracked shower tray or bath (that needs repair or replacement)
- Cracked or missing grout between tiles (that’s regrouting)
Not sure which it is? You can phone 0345 464 0079 or drop us an email and we will tell you honestly before booking.
What we seal
- Sinks & splashbacks
- Baths
- Shower trays & enclosures
- Basins & vanity units
- Kitchen worktops & upstands
- Wet rooms
What affects the cost of bathroom resealing
Every job gets its own quote. These are the things that affect it:
- The product the joint needs
- How much old sealant there is and how hard it is to remove
- The size of the job
- Mould in or behind the old joints
Combining jobs into one visit is usually more efficient than separate visits, so tell us about everything that needs sealing. We’ll give you a clear quote for the lot.
Asking for a quote
There’s no need for technical detail. Just tell us:
- The address or postcode of the job
- How we’d reach the joints
- The problem you’ve noticed
- How many joints, rooms or windows are involved
Getting a quote is simple: let us know the job and the location. Photos by email help us understand the job.
Bathrooms and kitchens in East Dulwich
London has hard water, so limescale builds up on sealant, grout and fittings. 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.
If you live in an older home near The Latter Rain Outpouring Revival Church, walls and floors in older homes can move, and sealant and grout show it first. If you let a flat or house near East Dulwich station, mouldy sealant is one of the first things a new tenant notices, so it’s worth renewing between lets. East Dulwich is in London, so parking needs planning: tell us about permits, visitor bays or off-street space when you book.
East Dulwich is about 3 miles south of London, in Greater London. East Dulwich gets the same service as everywhere we cover: old sealant removed completely, careful preparation and a one-year guarantee. East Dulwich is one of 764 places in Greater London we cover for bathroom resealing.
We work across SE5, SE22 and SE15 for bathroom resealing and the streets around it. We cover properties on Rye Lane, Wren Road and Adys Road and the roads around them. You will find East Dulwich on the A2214 and A2215, so it’s easy for us to get to with everything needed for bathroom resealing. We also cover the places around East Dulwich: Denmark Hill (1 mile north-west), Herne Hill (1 mile south-west), Dulwich Village (1 mile south), Camberwell (1 mile north) and Peckham (1 mile north-east). Within a short drive, we also cover London (3 miles north), City of Westminster (5 miles north-west), Marylebone (5 miles north-west), Kensington (6 miles north-west), St Pancras (5 miles north) and Shoreditch (4 miles north).
Around East Dulwich
Typical jobs here are in homes near The Fox on the Hill pub, The Charter School East Dulwich and The Charter School. East Dulwich has its own railway station: East Dulwich station. Well-known places in the area include House of Dreams Museum (under half a mile south-east) and Surrey Quays Shopping Centre (2.8 miles north-east). The countryside around East Dulwich includes Knight's Hill and Centre for Wildlife Gardening.
What we do, step by step
A visit follows a simple pattern: we check the joints, mask and protect the surrounding surfaces, do the work and clear up. Most jobs take a couple of hours for a single bath or shower. In East Dulwich, flats, stairs and shared entrances are part of the routine. If the building has a concierge, managing agent or access rules, tell us when you book.
- Protection goes down around the bath, shower or worktop.
- We cut away the old sealant and clean off what’s left.
- Mould is treated, then the joint is left to dry thoroughly.
- Any bath is filled with water, then we lay a bead of anti-fungal silicone in white, clear or a matching colour.
- We finish the joint, clear up and tell you how long to leave it before it gets wet.
Preparing for the visit
- Let us know about earlier repairs to the joints
- Plan for the work area to be out of bounds to pets and children
- Let us know about parking restrictions
Getting a quote
To get a quote, ring 0345 464 0079 or send us an email with the location and a short description of the problem. We will send you a clear quote before any work starts.
Related advice
Can I do it myself?
If you are set on DIY, put the effort into preparation: remove every trace of old sealant, clean and dry the joint, and follow the product’s cure time. If it doesn’t work out, we can still put it right.
Some sealant jobs are within reach of a careful DIYer, like a short, easy-to-reach joint indoors. The common mistakes are sealing over old sealant, sealing a damp joint and using far too much.