Greater London · England
Remedial sealant & repairs in Mitcham, Greater London
Removing failed, mouldy or leaking sealant and putting it right in Mitcham, with a 12-month guarantee on every job. Call for a quick quote.
- A shower that leaks however often it’s resealed
- Wide, uneven beads that look worse than the old ones
- Beads that never stuck properly
Remedial sealant for homes and businesses in Mitcham
The wrong product in the wrong joint fails however neatly it’s applied. We take it out and use a sealant made for that joint. We work on failed movement joints, expansion joints and leaking tray & enclosure joints, and the jobs we see most are movement joints that have split or pulled away and sealant that came away because the surface wasn’t prepared.
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.
We stand behind the work with a one-year guarantee, so you are not left on your own once the job is done.
- Place
- Mitcham (CR4, SW16, SM4)
- Region
- Greater London
- Cover
- 12 months on all our work
- Quotes
- A clear quote up front
- Call
- 0345 464 0079
- Last updated
- 26 October 2026
Should I try it myself first?
If you do try it yourself, take your time over the preparation: take out all the old sealant, make sure the joint is clean and dry, and give it the full cure time. If it does not work out, we can still put it right.
Some sealant jobs are within reach of a careful DIYer, such as a straightforward joint indoors. Where it goes wrong is sealing over the old bead, working on a wet joint or overloading the gap.
Places near Mitcham
Also in Mitcham
Landlord and commercial work in Mitcham
Letting agents and landlords in Mitcham can book us as well as homeowners. Resealing between tenancies keeps a property looking cared for.
Failed sealant is one of the commonest items on a check-out report. We can quote for more than one property at once.
Quotes for remedial sealant in Mitcham
The price is agreed before any work begins. It takes into account:
- Working hours on commercial sites
- The old material and how stubborn it is
- Mould in or behind the old joints
- The number of rooms or windows
A few things move the cost up or down: how much old sealant there is and how stubborn it is, any mould to treat, and whether the work is at height. We take all of that into account in your quote.
What we need to know
You do not need to know the technical terms. It helps if you can tell us:
- Any access issues, like height or stairs
- Whether it’s a home or a business
- Where the job is, and your postcode
- Whether it has been sealed before
A good description makes for an accurate quote. Tell us where the job is, what’s wrong and how much there is.
What we cannot put right
Some problems need a builder, plumber or other trade rather than us:
- Old mastic in a building from before 2000 that should be checked for asbestos before it’s disturbed
- A tray or worktop that needs refixing first
- A cracked shower tray or bath (that needs repair or replacing)
If you’re not sure, just phone 0345 464 0079 or drop us an email and we’ll give you a straight answer.
Surfaces we seal
- Mouldy bath & shower sealant
- Leaking tray & enclosure joints
- Failed movement joints
- Shrunken worktop sealant
- Botched or over-sealed joints
- Expansion joints
Do you need remedial sealant in Mitcham?
Joint depth matters. A bead bonded on three sides, or laid too thick, cannot flex, so it tears when the joint moves. Backing rod or bond-breaker tape prevents it.
Any of these means the joints need attention:
- Floor or wall movement joints that have failed
- Sealant applied over old sealant that has lifted
- Gaps opening along the back of the worktop
- Decorators’ caulk around a bath or shower
Letting a property close to Mitcham Eastfields station? Then botched sealant from a previous quick fix is easier to strip out between tenants.
What to look for in a quote
- What happens if the job turns out different
- What preparation is included
- When the joint can take water or movement
- Which colour the sealant will be
Mitcham homes and their sealant
London’s water is hard, which leaves limescale on sealant, grout and taps, 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.
Mitcham is in London, so parking needs planning: tell us about permits, visitor bays or off-street space when you book. If you look after a building such as St Thomas of Canterbury Catholic 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.
Mitcham is about 2 miles west of Thornton Heath, in Greater London. Across the CR4 area, we can carry out remedial sealant at your property. Our Greater London coverage runs to 764 places, and Mitcham is one of them. There’s also a page for London, about 7 miles away.
Every address in CR4, SW16 and SM4 is covered for remedial sealant. You will find streets such as Kings Road, Baker Lane and Manor Road. Neighbouring places we cover for remedial sealant include Hackbridge (1 mile north), Eastfields (1 mile north), Colliers Wood (1 mile north-west), Merton Abbey (2 miles north-west) and Furzedown (2 miles north). Further out, we also cover London (7 miles north), City of Westminster (8 miles north), Marylebone (8 miles north), Kensington (7 miles north), St Pancras (9 miles north) and Shoreditch (9 miles north).
Local landmarks in Mitcham
In Mitcham, that means homes and buildings near The Archbishop Lanfranc School, St Mark's Church of England Academy and The White Lion of Mortimer pub. Mitcham’s nearest station is Mitcham Eastfields station, about 0.5 miles north of the centre. A little further out are Wandle Industrial Museum (0.7 miles west) and Centrale Croydon (2.7 miles south-east). The countryside around Mitcham includes Duppas Hill and Cranmer Green.
Mitcham: your questions answered
Is parking a problem for a job in Mitcham?
In much of London, parking needs planning: a visitor permit or a nearby bay makes the day run more smoothly, so mention what’s available when you book.
Can you help a landlord with a rental near Mitcham Eastfields station?
Yes, we work for landlords and letting agents. Just ring 0345 464 0079 or drop us an email and tell us about the property, and we’ll give you a clear quote.
Can I choose the sealant colour?
Normally, yes. White, clear and grey are common, and other colours are available for many products, and we will agree it with you first.
Do you have insurance?
Yes. We’re fully insured, with over 20 years’ experience in sealant work.
Will you leave a mess?
Very little: the area around the joints is protected first, and we clear up the old sealant and our materials before we leave.
How long before the joint can be used?
Different products cure at different speeds, so please follow the time we give you when we finish.
How much does remedial sealant cost in Mitcham?
The cost depends on the size of the job, access and how much old sealant has to come out. Ask us for a quote.
Someone resealed my shower and it’s leaking again. Can you help?
Yes. We will take all the sealant out, look for why it failed and reseal it properly.
Looking after it afterwards
Good habits help new joints last longer. A few tips:
- Keep an eye on the ceiling below the bathroom
- Keep the room well ventilated
- Never fill a movement joint with mortar or grout
- Ask why a joint failed before redoing it
Give the new sealant its full cure time: generally around 24 hours, or as long as we advise.
Movement joints that have split let water into the structure, and the longer it’s left, the more the joint edges break down. A joint with sound edges is far easier to reseal.
What happens on the day
Our applicators work methodically: protection first, then preparation, sealing and a tidy-up. Typically it takes a few hours for a typical bath or shower, longer where several layers have been applied. Parking in much of London is by permit or pay-and-display, so it helps to know what’s near you in Mitcham. It helps if you can point us to a visitor permit or a bay close to the door.
- First we work out whether the problem is the sealant, movement or a leak.
- Each layer is cut out and the residue cleaned off.
- We treat any mould and dry the joint thoroughly.
- We reseal with a product suited to the joint, backed where needed.
- We finish neatly and point out anything that needs another trade.
Preparing for the visit
- Plan for the work area to be out of bounds to pets and children
- Let us know about earlier repairs to the joints
- Clear items away from the joints we are working on
Get a quote
For a quick quote, get us on the phone, or email us if that is easier. Tell us about the joints that need doing and we will talk you through the work and give you a clear price.