Greater London · England
Bathroom Resealing in Selhurst
Our applicators work in Selhurst on bath, shower, basin, wet room, worktop and sink resealing. Old sealant removed completely, joints prepared properly and a one-year guarantee.
- Failed sealant on the screen profile
- Splits where the tray meets the wall
- Smears of silicone across the tiles
Bathroom resealing in Selhurst, done properly
We fill the bath before sealing it. The weight settles the bath to its lowest point, so the new joint is not pulled apart the first time it’s used. It’s a small step that rushed reseals tend to skip. Common call-outs are for new sealant laid over old sealant that is now lifting and damp behind the bath or under the tray, across baths, kitchen worktops & upstands and wet rooms.
In much of London, period terraces have been converted into flats over the years, with bathrooms fitted into whatever space was available. Small, steamy rooms are where mould gets into sealant and grout fastest.
You’re covered for a year from the day we finish. If anything isn’t right with it, ring 0345 464 0079 or email us.
- Location
- Selhurst (SE25, SE20, CR0)
- Wider area
- Greater London
- Guarantee
- 12 months on all our work
- Quote
- A clear quote up front
- Telephone
- 0345 464 0079
- Page updated
- 26 October 2026

Leave it or put it right?
Mould removers can fade the surface of a stained bead, but mould that has grown into the sealant tends to return. The lasting answer is to remove the bead and start again. In a flat in Selhurst, 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.
Combining jobs into one visit generally makes better use of the time than several visits, so it’s worth mentioning everything you’d like done. You will get one clear quote for the whole job.
What you get with us
- Full insurance on every job
- White, clear, grey or coloured to suit, where the product allows
- A 12-month guarantee on all work
- ARBOMaster approved applicator
Take a look at what affects the cost or what customers say.
What we are called out for in Selhurst
The wrong product fails fast. Decorators’ caulk and all-purpose sealants aren’t made for constant wetting, so they crack, discolour or grow mould quickly. Wet areas call for a sanitary silicone with an anti-fungal additive.
Signs it’s time to call us include:
- Black mould in the silicone that will not clean off
- A messy, uneven bead from a previous reseal
- New sealant laid over old sealant that is now lifting
- Water getting behind the kitchen upstand
In the older streets around Church of St Mark, bathrooms in older houses have often been refitted more than once, with sealant laid over sealant.
Questions to ask before booking
- Are they insured?
- What preparation is included
- When the joint can take water or movement
- Whether the sealant suits the joint
What bathroom resealing looks like in Selhurst
London’s water is hard, so limescale builds up on sealant, grout and fittings, and it has to be cleaned off before new sealant goes in. 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.
Letting a property close to Norwood Junction station? Then mouldy sealant is one of the first things a new tenant notices, so it’s worth renewing between lets. As a London address, Selhurst can be tricky for parking: let us know about parking bays, permits or a driveway.
Selhurst is about 5 miles south-east of Stockwell, in Greater London. We provide bathroom resealing to homes and businesses in Selhurst. Our area takes in 764 places across Greater London, large and small. Our London page covers work nearby.
Postcode districts we cover here for bathroom resealing: SE25, SE20 and CR0. We cover properties on Park Road, Court Road and Dixon Road and the roads around them. With the A213 close by, Selhurst is easy for our applicators to reach. Nearby, we also carry out bathroom resealing in South Norwood (1 mile north), Woodside (1 mile south), Ashburton (1 mile south), Elmers End (1 mile east) and Addiscombe (1 mile south). Within a short drive, we also cover London (7 miles north), City of Westminster (9 miles north-west), Marylebone (9 miles north), Kensington (9 miles north-west), St Pancras (9 miles north) and Shoreditch (9 miles north).
Local landmarks in Selhurst
We work in homes and buildings around Harris Academy South Norwood, South Norwood Recreation Ground and The Albion pub, among other places. Selhurst has its own railway station: Norwood Junction station. Other landmarks nearby include Croydon University Hospital (1.7 miles south-west) and Crystal Palace Museum (1.4 miles north). Not far away are Duppas Hill and Dulwich Upper Wood.
Nearby places to Selhurst
Other services in Selhurst
Surface by surface
Basins & vanity units
Vanity units have long, worktop-style joints against the wall. Water that gets behind can damage the unit, so the joint is sealed in one unbroken line.
Kitchen worktops & upstands
Upstands and back edges are cut out, cleaned of grease and resealed, because cooking grease stops sealant bonding. Proper degreasing is what helps the new joint last.
What we cannot put right
In fairness, some problems need a different trade:
- Movement from a bath with loose feet or no proper support
- Water coming from the plumbing rather than the joint
- Loose or hollow tiles, or failed tanking behind them
If you are not sure, just phone 0345 464 0079 or email us and we’ll give you a straight answer.
Surfaces we seal
- Baths
- Wet rooms
- Shower trays & enclosures
- Sinks & splashbacks
- Kitchen worktops & upstands
- Basins & vanity units
For landlords and businesses
Failed sealant is one of the commonest items on a check-out report, and it’s easy to sort out between tenants. We can quote for more than one property at once.
Hotels need rooms back in use, so we plan the work room by room around your bookings where we can. Hotel work is part of what we do, alongside homes and businesses.
Common questions in Selhurst
Can worn sealant in a flat in Selhurst cause a leak downstairs?
Yes, it can. Water that gets past failed sealant or cracked grout can run under the bath or tray and show up on the ceiling below. It’s far simpler to replace tired sealant early than to deal with a neighbour’s ceiling.
Can you help a landlord with a rental near Norwood Junction station?
Yes, landlords and agents are among the people we work for. You can ring 0345 464 0079 or send us an email with the details for a clear quote.
Can you quote for more than one area?
Yes. More than one area can go on one quote.
Will you leave a mess?
Not at all. We work neatly, protect the area around the joints and tidy up afterwards.
Where do you work from?
Mr Mastic is based in Crawley. We cover Selhurst and the rest of Greater London, along with the rest of our area.
What sealant do you use?
Each joint gets the product that suits it. Movement, water and weather all affect the choice, and we’ll tell you what we’re using.
Do you come to Selhurst?
Yes. We cover Selhurst, as part of our work across South East England, London and Scotland. For a quote, call 0345 464 0079 or send us an email.
How long will the resealing take?
Allow around two hours for one bath or shower, longer for a whole bathroom. You’ll know how long to expect before any work starts.
Can I do it myself?
The difference is mostly in the preparation and the product. Joints are cleaned back to sound surfaces and dried, and the sealant is matched to the joint and its conditions, then guaranteed for a year.
Too much sealant is as bad as too little. A heavy bead looks messy and copes badly with movement, and the joint depth matters as much as the finish.
What happens on the day
All our tools and materials come with us in the van, so you don’t need to buy or prepare anything. Once we’ve agreed what’s being done, the area is protected and the work begins. Most jobs take a couple of hours for one bath or shower, or most of a day for a full bathroom and kitchen. For a job in Selhurst, parking and access are the things to plan: tell us about permits, visitor bays or off-street space, which floor we are working on and whether there’s a lift.
- We protect the area and cut out all of the old sealant, including the film left on the tiles.
- The joint is cleaned, degreased and treated for mould.
- The joint is left to dry, and baths are filled with water first.
- New anti-fungal silicone goes on in a colour to suit and is tooled to a clean finish.
- We clear away and tell you when it can get wet, usually after around 24 hours.
Preparing for the visit
- Let us know if you’ve seen damp or leaks
- Plan for the work area to be out of bounds to pets and children
- Mention any sign-in or site rules at work premises
How to get a quote
Quotes start with a quick conversation. Tell us what’s wrong, where it is and how much there is, and we’ll explain how we’d tackle it. Whenever you are ready, phone 0345 464 0079 or send us an email.
