Greater London · England
Bathroom & kitchen resealing in Brockley, Greater London
Professional bathroom resealing in and around Brockley, with every bit of old sealant taken out first and a 12-month guarantee.
- Damp behind the bath or under the tray
- Smears of silicone across the tiles
- Gaps where the bath or tray has moved
How to look after the new joints
Once the sealant has cured, a few habits help it last:
- Don’t let bottles sit on the bead
- Dry the bead with a towel now and then
- Avoid abrasive pads on the sealant
- Open a window or run the fan so the room dries
Mould needs damp, so keep the room aired. Use the fan, or open a window, while you bathe and for a while afterwards, so the silicone gets a chance to dry.
A few black dots in the silicone soon become a black line. When it has grown right through, it rarely cleans out. Catching it early keeps it a simple reseal.
How we handle bathroom resealing in Brockley
A shower joint gets soaked every day. Trays, enclosures, screen profiles and wet room floors all need a flexible, waterproof seal. Each gets a bead of anti-fungal sanitary silicone, tooled smooth so water runs off instead of sitting in a ridge. We work on kitchen worktops & upstands, basins & vanity units and baths, and the jobs we see most are a messy, uneven bead from a previous reseal and shrunken sealant along the back of a worktop.
In much of London, period terraces have been converted into flats over the years, with bathrooms fitted into whatever space was available. A compact bathroom that steams up every day is hard on silicone and grout, and homes in Brockley are no different.
A one-year guarantee comes with the work, just as it does everywhere we cover.
- Location
- Brockley (SE4, SE23, SE6)
- Region
- Greater London
- Guarantee
- 12 months on all our work
- Price
- Quoted before any work starts
- Telephone
- 0345 464 0079
- Last updated
- 26 October 2026
How the job changes by surface
Sinks & splashbacks
Water getting under the rim of an inset sink can soak the worktop. We reseal the visible edge of the sink where it has failed.
Basins & vanity units
A vanity top has a joint along the wall and sometimes at the sides. Water that gets behind can damage the unit, so a neat, continuous bead matters.
Work for landlords, hotels and businesses
In hotels, rooms out of use cost money, so we plan the work room by room. Hotel work is part of what we do, alongside homes and businesses.
Landlords and letting agents in Brockley can book us as well as householders. Sealant work between tenants keeps a property looking cared for.
Common questions in Brockley
Can parking be tricky for a visit in Brockley?
In much of London, parking needs planning: a visitor permit or a nearby bay makes the day run more smoothly.
Can worn sealant in a flat in Brockley cause a leak downstairs?
Yes, and the first sign is often a stain on the ceiling below. A proper reseal before the leak starts is the easy fix.
I’m a tenant. Can you help?
We can work for tenants, landlords or agents. Just make sure your landlord agrees.
Can mouldy silicone be sorted out?
Yes, we replace the mouldy bead. Cleaning products may lighten it, but the lasting fix is new anti-fungal silicone on a clean, treated joint. Good ventilation helps keep it away.
Can you reseal around my kitchen sink and worktop?
Yes. The old sealant is cut out and the joint degreased, because cooking grease stops silicone sticking, then a colour-matched bead is laid.
Where is Mr Mastic based?
Our base is Crawley, with over 20 years’ experience. Our area covers South East England, London and Scotland.
How long does the new silicone need before I use the shower?
After around 24 hours in most cases. You will get the exact cure time before we leave.
Do you work for hotels and businesses?
Yes, regularly. We can plan bigger jobs in stages.
How it works
All our tools and materials come with us in the van. After a quick look at the joints together, we protect the area and start. Most jobs take two to three hours for a typical bath, depending on how much old sealant there is. In a London area like Brockley, 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.
- 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.
- The joint is finished neatly and we explain when it can get wet.
Preparing for the visit
- Mention any leaks or damp you’ve noticed
- Let us know about earlier repairs to the joints
- Where the joints are inside, avoid wetting them before we arrive
Get a quote
We quote each job on its own, so start by telling us what you need. Simply call 0345 464 0079 or drop us an email and describe the job and send photos if you have them.
Advice
Honest limits
Before booking, it’s worth knowing the limits too:
- Leaks from a shower valve, waste or pipework (a plumber’s job)
- Failed grout lines across the wall
- A cracked shower tray or bath (that needs repair or replacement)
If in doubt, call 0345 464 0079 or email us and we will say what we think before you book.
What we seal
- Basins & vanity units
- Wet rooms
- Sinks & splashbacks
- Baths
- Shower trays & enclosures
- Kitchen worktops & upstands
Leave it or put it right?
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.
Homes and businesses are quoted the same way: the amount of work, the access and the products needed, along with when we can work on site. Call for a quick quote and we will go through it with you.
What you get with us
- We never seal over old sealant
- A 12-month guarantee on all work
- Arbo and Everbuild products
- More than 20 years in sealant work
Take a look at our cost guide and customer reviews.
Nearby places to Brockley
What else we do in Brockley
Quotes for bathroom resealing in Brockley
Every job gets its own quote. These are the things that affect it:
- The amount of work
- The number of rooms or windows
- The product the joint needs
- The old material and how stubborn it is
Instead of a standard rate, we price the job in front of us: the amount of work, the old material and the access. You will know the price before we begin.
What to tell us for a quote
To help us quote quickly, please include:
- Any previous sealing or DIY work
- Photos by email, if that is easy
- The address or postcode of the job
- If it’s domestic, commercial or a hotel
Quotes start with a quick conversation. Describe the problem, the location and the size of the job. Whenever you’re ready, call 0345 464 0079 or drop us an email.
Bathroom resealing around Brockley
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.
As a London address, Brockley can be tricky for parking: tell us about permits, visitor bays or off-street space when you book. For site and facilities teams at buildings such as Beecroft Garden Primary, 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. For landlords with property near Crofton Park station, fresh sealant around the bath, shower and sink between tenancies helps a property present well and keeps leaks at bay.
Brockley is about 1 mile south of New Cross, in Greater London. We provide bathroom resealing to householders, landlords and businesses in Brockley, as part of our work across Greater London. 764 places in Greater London are on our list.
Jobs for bathroom resealing in SE4, SE23 and SE6 is quoted and booked the same way as anywhere else. Local streets include Ivy Road, Nash Road and Lindal Road, all of which we cover. We also cover the places around Brockley: Crofton Park (1 mile south-east), Honor Oak (1 mile west), Ladywell (1 mile east), Forest Hill (1 mile south-west) and Nunhead (1 mile north-west). Within a short drive, we also cover London (4 miles north-west), City of Westminster (7 miles north-west), Marylebone (7 miles north-west), Kensington (8 miles north-west), St Pancras (6 miles north-west) and Shoreditch (5 miles north).
Landmarks near Brockley
Locally, jobs take us to homes and businesses close to Blythe Hill Tavern, Allenby Tutorial Trust and Blythe Hill Fields, among other places. Brockley has its own railway station: Crofton Park station. Other landmarks nearby include Horniman Museum and Gardens (1.4 miles south-west) and University Hospital Lewisham (0.7 miles east). Green spaces nearby include One Tree Hill and Knight's Hill.