Greater London · England
Remedial sealant & repairs in New Malden, Greater London
Removing failed, mouldy or leaking sealant and putting it right for homes and businesses in New Malden and across Greater London. Fully insured, ARBOMaster approved and guaranteed for a year.
- Decorators’ caulk around a bath or shower
- Leaks that keep coming back after resealing
- Floor or wall movement joints that have failed
Remedial sealant for homes and businesses in New Malden
Not every leak is a sealant leak. Cracked trays, leaking wastes and faulty valves often look like a sealant problem. When the fault is elsewhere, we say so instead of resealing for the sake of it. If you’re dealing with beads that never stuck properly and kitchen joints letting water behind the worktop, we can put it right.
Across London, a large share of homes are flats, conversions or mansion blocks, so a bathroom is often directly above a neighbour’s ceiling. That makes worn sealant and cracked grout in New Malden more than a cosmetic job.
Our work is backed for twelve months.
- Place
- New Malden (KT3, KT1, SW20)
- Region
- Greater London
- Cover
- A year, on every job
- Quote
- A clear quote up front
- Call
- 0345 464 0079
- Last updated
- 26 October 2026
What we do, step by step
You do not need to clear the whole room or building before we come, just the space around the work. Everything nearby is protected, and the work takes a few hours for a typical bath or shower, longer where several layers have been applied for a typical job. In New Malden, as in most of London, parking needs a little planning. A visitor permit or a nearby bay makes the visit run more smoothly.
- First we work out whether the problem is the sealant, movement or a leak.
- Each layer is cut out and the residue cleaned off.
- Mould is treated and the joint dried.
- The right product goes in, with backing where the joint moves.
- We finish neatly and point out anything that needs another trade.
Before we arrive
- Tell us if parking is tricky
- On commercial sites, let us know about site rules
- Plan for the work area to be out of bounds to pets and children
Get a quote
Want a quote for remedial sealant? Please phone 0345 464 0079 or send us an email and tell us about the job. We will explain what we’d do and give you a clear price before work begins.
Related advice
Landlords, agents and businesses in New Malden
A neglected joint can let water reach the structure, which matters even more when someone else lives there. Resealing at the right time is simple maintenance.
Letting agents often deal with us directly. Send the address, what’s needed and the access arrangements and we’ll quote.
Why deal with it now?
It’s easy to scratch acrylic, enamel or an uPVC frame cutting out old sealant, and the residue left behind stops the next bead bonding. Careful removal is most of a remedial job. In older London homes, water behind a failed joint soaks into brick and timber without much sign, and by the time it shows on a wall or ceiling in New Malden, the repair is bigger than the sealant job would have been.
Every job is a little different, so we quote each one individually. The number of joints, how easy they are to reach and the sealant needed all play a part, and we’ll explain the quote if you ask.
Why New Malden customers choose us
- We’re fully insured
- Anti-fungal silicone where joints get wet
- White, clear, grey or another colour, product permitting
- We leave the area clean and tidy
Towns and villages near New Malden
More services for New Malden
FAQs for New Malden
Could a tired shower seal in my New Malden flat affect the neighbours below?
Yes. In a flat, water from a failed bath or shower seal has only one way to go, and that’s down. A proper reseal before the leak starts is the easy fix.
Can parking be tricky for a visit in New Malden?
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.
What do you put in the joint?
Each joint gets the product that suits it. Movement, water and weather all affect the choice, and we will explain our choice.
What if resealing will not fix my leak?
You’ll hear it from us. A cracked tray, faulty valve or leaking waste needs a different trade, and we will not reseal for the sake of it.
Do you fix expansion and movement joints?
Yes. If a joint has been filled with mortar or rigid filler, we rake it out where possible, then the joint is sealed properly.
Do you cover New Malden?
Yes. We are based in Crawley and work across South East England, London and Scotland.
How long does the work take?
Longer than a simple reseal, because every layer has to come out. Most jobs take a few hours.
Do I need to be at home?
For indoor joints, yes, someone needs to let us in. Once we’ve agreed the job, you do not need to watch us work.
What we are called out for in New Malden
How a joint is built matters as much as the product. 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 rod or bond-breaker tape prevents it.
The problems people generally mention when they call include:
- A shower that leaks however often it’s resealed
- Sealant applied over old sealant that has lifted
- Caulk or the wrong sealant used in a wet area
- Black mould underneath the bead
In the older streets around New Malden Baptist Church, bathrooms in older houses have often been refitted more than once, with sealant laid over sealant.
Questions to ask before booking
- Is the old sealant removed completely?
- Whether VAT is included
- What product goes in the joint
- When the joint can take water or movement
When something else is needed
To be straight with you, some problems need a different trade:
- Cracks in the fitting rather than the joint
- A leaking trap, valve or supply pipe
- Water damage behind tiles that needs a tiler
If you’re not sure, just phone 0345 464 0079 or send us an email and we will give you a straight answer before booking.
Joints and surfaces we work on
- Shrunken worktop sealant
- Expansion joints
- Mouldy bath & shower sealant
- Leaking tray & enclosure joints
- Botched or over-sealed joints
- Failed movement joints
How we quote for remedial sealant
You will get a clear quote before we start. It takes into account:
- Working hours on commercial sites
- How many areas need sealing
- Whether there’s mould to deal with
- Whether the work is at height
Homes and businesses are quoted the same way: the amount of work, the access and the products needed. Call for a quick quote and we’ll go through it with you.
Asking for a quote
To make quoting easier, let us know:
- How we’d reach the joints
- The problem you’ve noticed
- A few pictures by email, if you can
- Where the property is
To get a quote, ring 0345 464 0079 or drop us an email and tell us where the job is and what the problem looks like. We’ll give you a clear price before any work starts.
Remedial sealant in New Malden: local notes
London has a lot of flats and conversions, and a failed shower or bath seal in one can show up on the ceiling below, so tired sealant is best dealt with early. London has hard water, so limescale builds up on sealant, grout and fittings.
Rented homes near New Malden station change hands often, and failed or mouldy sealant is worth putting right between tenancies, before it turns into a leak. New Malden is in London, so parking needs planning: tell us about permits, visitor bays or off-street space when you book.
New Malden is about 3 miles south-west of Wimbledon, in Greater London. Whether you are in the middle of New Malden or further out, remedial sealant is available for homes and businesses alike. New Malden is one of 764 towns and villages in Greater London we cover. For nearby work, see our London page, about 10 miles away.
We cover every part of the KT3, KT1 and SW20 postcode area for remedial sealant. Whether your property is on High Street, Ashcombe Square and Melrose Gardens or a nearby road, our applicators can take on the job. New Malden is on the B283, which makes it straightforward to reach with everything needed for remedial sealant. If you’re just outside New Malden, we cover Motspur Park (1 mile north-east), West Barnes (1 mile east), Norbiton (1 mile north-west), Coombe (1 mile north) and Raynes Park (1 mile east). We also work in nearby towns such as London (10 miles north-east), City of Westminster (9 miles north-east), Marylebone (9 miles north-east), Kensington (7 miles north), St Pancras (11 miles north-east) and Shoreditch (12 miles north-east).
Local landmarks in New Malden
Locally, jobs take us to homes and businesses close to Beverley Park, The Glasshouse pub and Holy Cross School. There’s a railway station in New Malden itself: New Malden station. Nearby you’ll also find Chessington Castle Hill (3.3 miles south) and Bentall Centre (1.9 miles west). Green spaces nearby include Rose Walk and Kingston Hill Road area.
How the job changes by surface
Movement & expansion joints
Movement joints in floors, walls and façades need a flexible sealant set to the right depth. We remove the failed sealant, fit backing and reseal.
Over-sealed & botched joints
A thick bead smeared across tiles often hides mould or gaps. Taking it back shows what’s underneath, then reseal neatly.