Greater London · England
West Wickham Remedial Sealant
Remedial sealant across West Wickham and nearby, with old sealant always removed completely and a 12-month guarantee.
- Worktop sealant that has shrunk and split
- Floor or wall movement joints that have failed
- Leaks that keep coming back after resealing
Remedial sealant in West Wickham, done properly
Not every leak is a sealant leak. Cracked trays, leaking wastes and faulty valves often look like a sealant problem. If that is what we find, we’ll tell you rather than reseal something that will not fix it. Typical jobs include a shower that leaks however often it’s resealed and movement joints that have split or pulled away, across leaking tray & enclosure joints, mouldy bath & shower sealant and failed movement joints.
Hard London water leaves limescale on sealant, grout and taps alike. For a bathroom or kitchen in West Wickham, getting the joints right keeps water where it belongs and the room looking clean.
All of our work is guaranteed for twelve months, in West Wickham and everywhere else we cover.
- Location
- West Wickham (BR4, CR0, BR3)
- Region
- Greater London
- Guarantee
- One year on every job
- Quotes
- Quoted before any work starts
- Call
- 0345 464 0079
- Page updated
- 26 October 2026
What happens if it’s left?
Hidden water does the most damage: wet floors, stained ceilings and swollen worktops. Dealing with the joint now is a small job by comparison. In a flat in West Wickham, failed sealant seldom stays inside your own four walls: water can reach the neighbours below, and gaps in fire-rated joints affect the whole building.
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 will explain the quote if you ask.
Why us?
- A 12-month guarantee on all work
- 180+ five-star Google reviews
- Colour agreed with you before we start
- Experience in homes, commercial sites and hotels
See our cost guide and our reviews.
Towns and villages near West Wickham
Other services in West Wickham
Keeping the joints in good condition
Aftercare is simple:
- Never fill a movement joint with mortar or grout
- Run the fan after every shower
- Ask why a joint failed before redoing it
- Keep an eye on the ceiling below the bathroom
Do not let anyone seal over it later. New silicone doesn’t bond to old, so the old bead should always come out first.
Movement joints that have split let water into the structure, and left long enough, the edges of the joint can crumble. Resealing while the edges are sound is simpler.
Common problems we fix in West Wickham
Joint depth matters. Sealant packed too deep, or stuck to the back of the joint as well as the sides, cannot stretch, so it tears when the joint moves. Backing sets the depth and stops that.
It’s worth asking for a quote if you see:
- Kitchen joints letting water behind the worktop
- Sealant peeling off a dusty or damp surface
- A second bead peeling off the first
- Floor or wall movement joints that have failed
Homes close to St Francis of Assisi include some older properties, and older homes can move a little, which is hard on rigid grout and tired sealant.
Questions to ask before booking
- Whether they seal over old material or remove it
- When the joint can take water or movement
- Whether they’re fully insured
- Which colour the sealant will be
What sealant work cannot fix
We will not take on work that will not last, so here’s what sealant can’t put right:
- Water damage behind tiles that needs a tiler
- A tray or worktop that needs refixing first
- Leaks from a shower valve, waste or pipework (a plumber’s job)
If in doubt, phone 0345 464 0079 or email us and we’ll say what we think.
Surfaces we seal
- Expansion joints
- Mouldy bath & shower sealant
- Failed movement joints
- Botched or over-sealed joints
- Shrunken worktop sealant
- Leaking tray & enclosure joints
What affects the cost of remedial sealant
Your quote is based on your job. We take into account:
- Any mould that needs treating
- Whether old sealant or filler has to be cut out
- Any working-time requirements on site
- The number of rooms or windows
What it costs depends on the amount of work, how hard the old material is to remove and access to the work. You’ll have a clear quote before any work starts, so you know where you stand.
What we need to know
To make quoting easier, let us know:
- If someone has resealed it before
- The address or postcode of the job
- What’s wrong with the joints now
- Photos by email, if that is easy
Every job is quoted individually. Simply ring 0345 464 0079 or email us and describe the job, and photos are welcome.
West Wickham questions
Can you help a landlord with a rental near West Wickham station?
Yes, rental work is part of what we do. You can call 0345 464 0079 or send us an email with the address and a few details, and we will give you a fixed price before any work starts.
Is parking an issue for remedial sealant in West Wickham?
In much of London, parking needs planning: a visitor permit or a bay close to the door helps a lot, so mention what’s available when you book.
How long should I leave it?
Many sealants skin over quickly but take longer to cure fully. We will give you the cure time for the product we used.
Which products do you use?
Each joint gets the product that suits it. Movement, water and weather all affect the choice, and we will tell you what we’re using.
Do you fix expansion and movement joints?
Yes. We cut out the failed sealant, fit backing and reseal with a flexible product.
Can I do it myself?
For a simple, easy-to-reach joint, a careful DIYer can do a reasonable job. Most DIY failures come from sealing over old material, wet joints or too much sealant.
Where are you based?
Mr Mastic is based in Crawley. Our applicators cover West Wickham.
Can I choose the sealant colour?
We help you choose a colour that suits. The product needed can limit the range.
West Wickham homes and their sealant
In a London flat, water from a failed bath or shower seal can reach the neighbours below, which is why it’s worth fixing early. 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.
If you let a flat or house near West Wickham station, botched sealant from a previous quick fix is easier to strip out between tenants. As a London address, West Wickham can be tricky for parking: let us know about parking bays, permits or a driveway.
West Wickham is about 2 miles south of Beckenham, in Greater London. Across the BR4 area, we cover remedial sealant for homes and businesses. Our Greater London coverage runs to 764 places, and West Wickham is one of them. London is on our list too, around 9 miles away.
Our applicators cover all of BR4, CR0 and BR3 for remedial sealant and the streets around it. Streets in the area include Ash Road, Kent Road and Oak Avenue, and we cover them all. Close by, we work in Coney Hall (1 mile south), Spring Park (1 mile west), Eden Park (1 mile north), Hayes (1 mile east) and Addington (1 mile south). Larger places within reach include London (9 miles north), City of Westminster (11 miles north-west), Marylebone (11 miles north-west), Kensington (12 miles north-west), St Pancras (11 miles north) and Shoreditch (11 miles north).
Near you in West Wickham
Around West Wickham, our work takes us to homes and buildings near Millers Pond, Langley Park School for Girls and The Wheatsheaf pub. West Wickham has its own railway station: West Wickham station. Other landmarks nearby include The Mall (2.4 miles north-east) and National Psychosis Unit (0.6 miles north-west). The countryside around West Wickham includes Duppas Hill and Bramley Bank.
The process
Before we leave, we go over the finished joints with you and tell you how long to leave it. The visit itself usually takes a few hours, depending on how many layers have to come out, depending on the size of the job. For a job in West Wickham, parking and access are the things to plan: let us know about parking, the floor we will be working on and any lift or shared entrance.
- First we work out whether the problem is the sealant, movement or a leak.
- Old beads and residue are removed down to clean surfaces.
- Mould is treated and the joint dried.
- We reseal with a product suited to the joint, backed where needed.
- The joint is tooled and you are told about anything else we found.
Before we arrive
- Tell us about any previous sealing or DIY attempts
- Plan for the work area to be out of bounds to pets and children
- Mention any parking rules near the property
Get a quote
Want a quote for remedial sealant? Please ring 0345 464 0079 or drop us an email with a few details. We will explain what we’d do and give you a clear quote before work begins.
Related advice
Surface by surface
Leaking trays & enclosures
When failed joints are the cause, they’re all cut out and renewed, tray edges and screen profiles included.
Movement & expansion joints
Some movement joints have been filled with mortar or grout. Where it can be raked out, we replace it with flexible sealant.