Greater London · England
Herne Hill Bathroom Resealing
Problem with your baths, showers and worktops in Herne Hill? We remove the old material, prepare the joints and seal them properly, and the work is guaranteed for a year.
- Leaks into the floor or ceiling below
- Splits where the tray meets the wall
- Water escaping at the shower enclosure
How we handle bathroom resealing in Herne Hill
The bead of silicone around a bath, tray or worktop is what keeps water out of the gaps. Once it cracks or goes mouldy, water starts to find its way through. Every trace of the old sealant is taken out and replaced with anti-fungal sanitary silicone. If you’re dealing with cracked, shrunken or lifting silicone and black spots spreading through the bead, we can put it right, whatever the surface.
Hard London water leaves limescale on sealant, grout and taps alike. For a bathroom or kitchen in Herne Hill, getting the joints right keeps water where it belongs and the room looking clean.
The work is covered for a year after we finish. If there’s a problem with it, please call 0345 464 0079 or email us.
- Where
- Herne Hill (SE22, SW2, SE24)
- Wider area
- Greater London
- Cover
- 12 months on all our work
- Quotes
- A clear quote up front
- Telephone
- 0345 464 0079
- Last updated
- 26 October 2026
How the job changes by surface
Wet rooms
Not every wet room leak is a sealant problem. We reseal the joints and will tell you if the water seems to be coming from somewhere else.
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, sealing the side the enclosure’s instructions call for.
What happens if it’s left?
A clean new bead makes a room look cared for, which matters if you are letting a property or selling it. Lumpy sealant with smears on the tiles has the opposite effect, and it’s harder to put right later. In older London homes, water behind a failed joint soaks into brick and timber without much sign, and once it shows in Herne Hill, the repair is bigger than a sealant job.
No two jobs are quite the same, so we quote each one individually. The number of joints, how easy they are to reach and the sealant needed all make a difference, and we’ll explain the quote if you ask.
Why choose Mr Mastic in Herne Hill
- Sanitary silicone with an anti-fungal additive in wet areas
- Sealant colour chosen to suit
- More than 20 years in sealant work
- A 12-month guarantee on all work
Read our cost guide and our reviews.
When to call us in Herne Hill
No sealant lasts indefinitely. Every shower, every splash and every wipe with a cleaner slowly wear it down, so its life depends on how the room is used, cleaned and aired.
The problems people generally mention when they call include:
- Shrunken sealant along the back of a worktop
- Lumpy, uneven sealant from a DIY attempt
- Gaps where the bath or tray has moved
- Black spots spreading through the bead
Herne Hill is in London, so parking needs planning: let us know about parking bays, permits or a driveway.
Comparing quotes
- Whether VAT is included
- What happens if they find a problem under the old sealant
- Which colour the sealant will be
- The length of the guarantee
What bathroom resealing looks like in Herne Hill
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. London’s water is hard, so limescale builds up on sealant, grout and fittings.
In the older streets around Saint Faith's, older homes can move a little, which is hard on rigid grout and tired sealant. For site and facilities teams at buildings such as Judith Kerr Primary School, 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.
Herne Hill is about 3 miles south of London, in Greater London. Wherever you are in the SE22 postcode area, we cover bathroom resealing for homes and businesses. Herne Hill is one of 764 towns and villages in Greater London we cover for bathroom resealing.
We work across the SE22, SW2 and SE24 postcode area for bathroom resealing and the streets around it. That includes homes and businesses on Jelf Road, Dewey Lane and Talma Road. With the A204 and A2214 close by, Herne Hill is simple for us to get to. If you’re just outside Herne Hill, we cover Dulwich Village (1 mile south-east), East Dulwich (1 mile north-east), Dulwich (1 mile south-east), Denmark Hill (1 mile north) and Camberwell (1 mile north). 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 (5 miles north).
What’s near Herne Hill
In Herne Hill, that means homes and buildings near The Charter School, Half Moon pub and Belair Park, among other places. There’s a railway station in Herne Hill itself: North Dulwich station. Nearby you’ll also find Surrey Quays Shopping Centre (3.5 miles north-east) and House of Dreams Museum (0.7 miles north-east). Open spaces near Herne Hill include Battersea Park Lake and Knight's Hill.
What we can’t put right
We’ll always be straight with you, so here’s what new sealant won’t do:
- A bath or tray that moves because it isn’t properly supported
- Damage behind the tiles that needs a tiler
- Leaks from a shower valve, waste or pipework (a plumber’s job)
If in doubt, phone 0345 464 0079 or email us and we will say what we think.
Surfaces we seal
- Basins & vanity units
- Shower trays & enclosures
- Baths
- Sinks & splashbacks
- Wet rooms
- Kitchen worktops & upstands
Towns and villages near Herne Hill
What else we do in Herne Hill
Aftercare tips
Simple care keeps the joints in good condition. We recommend:
- Dry worktop joints after washing up
- Keep an eye on the corners, where splits start
- Open a window or run the fan so the room dries
- Clean with a mild bathroom cleaner and a soft cloth
Do not stand bottles along the bead, because they trap water against the silicone. A quick squeegee after showering keeps water from sitting on the joint.
Mould that starts as a few spots spreads through the bead. Once it’s deep in the silicone, cleaning generally won’t remove it. Catching it early keeps it a simple reseal.
The process
The work is kept neat and contained to the area we’re working on, so you can get on with your day. The job usually takes a couple of hours for one bath or shower, or most of a day for a full bathroom and kitchen. In a London area like Herne Hill, 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 cover the area around the joints we are working on.
- We cut away the old sealant and clean off what’s left.
- We treat any mould and let the joint dry properly.
- Baths are filled first, then anti-fungal sanitary silicone is applied in a colour to suit.
- The joint is finished neatly and we explain when it can get wet.
Before we arrive
- Mention any parking rules near the property
- Mention if the joints have been sealed before
- Mention any tricky access
How to get a quote
Asking for a quote is easy: tell us what needs doing and where, and roughly how big it is. Photos by email help us understand the job, and we’ll take it from there.
Related advice
Work for landlords, hotels and businesses
Hotels need rooms back in use, so the work can be planned room by room around your bookings where we can. We have worked in hotels as well as homes and businesses.
Housing providers, facilities teams and property managers book us too. Several sites can go on one quote, and we’re fully insured for the work.
Herne Hill: your questions answered
Can you help a landlord with a rental near North Dulwich station?
Yes, rental work is part of what we do. You can phone 0345 464 0079 or send us an email with the address and a few details, and we’ll give you a fixed price before work begins.
Do you work for hotels and guest houses in Herne Hill?
Yes, we work for hotels as well as homes and businesses. Rooms can be done a few at a time, so the building stays open.
How long will the resealing take?
A single bath or shower takes about a couple of hours, old sealant removal included. A whole bathroom plus the kitchen may take most of the day.
How do I get a quote for bathroom resealing in Herne Hill?
We don’t publish prices, because the cost depends on the job: its size, the old material, access and the product needed. You will get a clear quote before work begins.
Do you guarantee your resealing?
Yes, a 12-month guarantee. Good ventilation and gentle cleaning help it last.
Can new silicone go straight over the old?
No, never. Sealing over the top looks fine for a few weeks, then lifts. Every trace of the old bead is removed first.
Are you an approved applicator?
Yes. We’re approved under the ARBOMaster scheme, the approved applicator scheme for Arbo sealants.
Do you come to Herne Hill?
Yes. From our base in Crawley, we cover South East England, London and all of Scotland, and that includes Herne Hill.