Greater London · England
Bathroom Resealing in South Kensington
Baths, showers and worktops in South Kensington need attention? We cut out the old, prepare the joints and apply the right sealant, and the work is guaranteed for a year.
- Gaps where the bath or tray has moved
- Leaks into the floor or ceiling below
- A messy, uneven bead from a previous reseal
Bathroom resealing in South Kensington, done properly
Homes in South Kensington have the same weak spots as anywhere else: bath edges, tray joints, basin backs and kitchen upstands. Each one is stripped, cleaned and dried before new silicone goes in. If you have water getting behind the kitchen upstand and gaps where the bath or tray has moved, we can put it right, on wet rooms, shower trays & enclosures and basins & vanity units alike.
London’s water is hard, so limescale builds up along sealant lines, in grout and on fittings. For a bathroom or kitchen in South Kensington, getting the joints right keeps water where it belongs and the room looking clean.
Big or small, it’s backed by our one-year guarantee in South Kensington and across Greater London.
- Place
- South Kensington (SW3, SW7, SW10)
- Wider area
- Greater London
- Guarantee
- 12 months on all our work
- Quotes
- A clear quote up front
- Call
- 0345 464 0079
- Last updated
- 26 October 2026
Landlords, agents and businesses in South Kensington
We work for landlords and agents as well as homeowners. Resealing between tenancies keeps a property looking cared for.
In hotels, rooms out of use cost money, so we plan the work room by room. We’ve worked in hotels as well as homes and businesses.
What bathroom resealing looks like in South Kensington
London has a lot of flats and conversions, and a failed shower or bath seal in one can show up on the ceiling below, so tired sealant is best dealt with early. London’s water is hard, which leaves limescale on sealant, grout and taps.
If you look after a building such as Our Lady of Victories RC Primary School, its toilets, changing areas and kitchens need their sealant renewed like any other building’s. In the older streets around Chapel of St Luke, timber floors under older bathrooms flex, so joints need a sealant that moves with them.
South Kensington is about 1 mile south-east of Kensington, in Greater London. Wherever you are in the SW3 postcode area, we can carry out bathroom resealing at your property. Across Greater London, we cover 764 places, and South Kensington is one of them.
Every address in SW3, SW7 and SW10 is covered for bathroom resealing. Local streets include King's Road, Fulham Road and Museum Lane, all of which we cover. Being close to the A3217, South Kensington is simple for us to get to. Neighbouring places we cover for bathroom resealing include Little Chelsea (1 mile south), Chelsea (1 mile east), Brompton (1 mile north-east), World's End (1 mile south) and Earl's Court (1 mile west). Within a short drive, we also cover London (4 miles east), St Pancras (4 miles north-east), Shoreditch (5 miles north-east), Walthamstow (9 miles north-east), Hoxton (5 miles north-east) and Whitechapel (5 miles east).
What’s near South Kensington
Around South Kensington, our work takes us to homes and buildings near London School of Dramatic Art, Burton’s Court and Anglesea Arms, among other places. Other local landmarks include Natural History Museum Library and Archives (less than half a mile north) and Collingham College (0.5 miles west). For rail, the closest station is West Brompton station, about 0.8 miles west. Nearby you’ll also find Victoria and Albert Museum Spiral (less than half a mile north) and Baynard's Castle (3.6 miles north-east). For a walk, there’s Serpentine and Campden Hill.
Towns and villages near South Kensington
Other services in South Kensington
What we do, step by step
Most of a good job is in the preparation, and we do not rush it. Every joint is cleaned and dried before new material goes in. All told, the work takes half a day or less for one room, longer when the kitchen is included. In South Kensington, 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.
- We protect the area and cut out all of the old sealant, including the film left on the tiles.
- Next, the joint is cleaned and any mould is treated.
- We let it dry fully and fill the bath with water before sealing.
- New anti-fungal silicone goes on in a colour to suit and is tooled to a clean finish.
- Finally we tidy up and explain the cure time before we leave.
Preparing for the visit
- Let us know about stairs, lifts or work at height
- Try not to wet indoor joints just before the visit
- Let us know about earlier repairs to the joints
Getting a quote
Asking for a quote is easy: 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
Honest limits
Before booking, it’s worth knowing the limits too:
- Damage behind the tiles that needs a tiler
- Cracked or missing grout between tiles (that’s regrouting)
- Water coming from the plumbing rather than the joint
If you’re not sure, just call 0345 464 0079 or send us an email and we will give you a straight answer before booking.
What we seal
- Sinks & splashbacks
- Wet rooms
- Kitchen worktops & upstands
- Baths
- Shower trays & enclosures
- Basins & vanity units
Your questions about bathroom resealing in South Kensington
I live in a flat in South Kensington. 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.
Can you help a landlord with a rental near West Brompton station?
Yes, rental work is part of what we do. Just ring 0345 464 0079 or drop us an email and tell us about the property, and we’ll send you a clear quote.
Can you work on commercial sites?
Yes. We work in offices, washrooms, hotels and other commercial premises. We can talk about working times when we quote.
Can I add another job to the visit?
Yes. Several rooms, windows or areas can go on one quote.
Is there any odour?
That depends on the sealant. Some products have a noticeable smell, others very little, and any smell fades as they cure.
Can I do it myself?
You can, for simple jobs. The key is preparation: remove all the old material and work on a clean, dry joint. If it doesn’t work out, we can redo it.
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 cover South Kensington?
Yes. We work in South Kensington and the rest of Greater London. For a quote, phone 0345 464 0079 or send us an email.
Why deal with it now?
Bleach and mould sprays may lighten black marks for a while, but where mould is inside the silicone it normally comes back. Cutting it out and resealing with anti-fungal silicone is the fix that lasts. In a London flat, a failed joint rarely stays your problem alone: water can reach the neighbours below, and gaps in fire-rated joints affect the whole building.
Some things make a job bigger or smaller: the old material and how easily it comes out, any mould to treat, and whether we need extra access for height. We take all of that into account in your quote.
Why choose Mr Mastic in South Kensington
- Old sealant always removed completely
- An ARBOMaster approved applicator
- We leave the area clean and tidy
- We agree the colour with you first
Take a look at how sealant jobs are priced or our reviews.
How the job changes by surface
Wet rooms
Wet rooms rely on sound joints at floor and wall junctions. They get anti-fungal sanitary silicone, working on the surface joints, not the tanking or drainage.
Shower trays & enclosures
The vertical joint where a screen profile meets the wall is a common leak point. It’s resealed along with the tray joints, following the enclosure maker’s guidance on which side to seal.
What affects the quote in South Kensington
For a quick quote, just ask. The main things that affect it are:
- The old material and how stubborn it is
- Access and height
- How much there is to do
- Whether there’s mould to deal with
Leaving a failed joint generally makes the job bigger, not smaller. If you’re not sure whether it needs doing, call 0345 464 0079 or email us for an honest opinion and a quote.
Helping us quote
You don’t need to know the technical terms. Just tell us:
- Roughly how big the job is
- How we’d reach the joints
- If it’s domestic, commercial or a hotel
- If someone has resealed it before
To get a quote, ring 0345 464 0079 or drop us an email with the location and a short description of the problem. You will have a clear quote before we start.
What we are called out for in South Kensington
A bath shifts a little every time it’s filled and emptied. Acrylic in particular gives slightly under the weight of water and a person, and a tray that is not fully bedded can rock. Over time the joint tears or pulls away from the tile.
People usually contact us after spotting something like this:
- Water getting behind the kitchen upstand
- Failed sealant on the screen profile
- Sealant that has split, shrunk or peeled away
- Water getting behind the bath panel
If you let a flat or house near West Brompton station, fresh sealant around the bath, shower and sink between tenancies helps a property present well and keeps leaks at bay.
What your quote should include
- What insurance they hold
- Whether you can choose the colour
- What happens if they find a problem under the old sealant
- What the quote includes, VAT included or not