Greater London · England
Remedial sealant & repairs in Coombe, Greater London
We cover Coombe for removing failed, mouldy or leaking sealant and putting it right. Old sealant removed completely, joints prepared properly and a 12-month guarantee.
- Over-sealed joints coming away
- Leaks that keep coming back after resealing
- Gaps opening along the back of the worktop
Remedial sealant in Coombe, done properly
A joint that keeps failing generally has a reason. Movement, the wrong product or a leak from somewhere else will defeat even a perfect bead. We look for the cause before we reseal. Typical jobs include decorators’ caulk around a bath or shower and leaks that keep coming back after resealing, across expansion joints, failed movement joints and leaking tray & enclosure joints.
London’s water is hard, so limescale builds up along sealant lines, in grout and on fittings. For a bathroom or kitchen in Coombe, getting the joints right keeps water where it belongs and the room looking clean.
You get a one-year guarantee, the same in Coombe as everywhere else we work.
- Where
- Coombe (KT2, KT3, SW20)
- Wider area
- Greater London
- Cover
- One year on every job
- Quote
- Quoted before any work starts
- Phone
- 0345 464 0079
- Last updated
- 26 October 2026
Bathrooms and kitchens in Coombe
In a London flat, water from a failed bath or shower seal can reach the neighbours below, so tired sealant is best dealt with early. 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.
For landlords with property near Norbiton station, a joint that keeps failing is best fixed properly while the property is empty. For site and facilities teams at buildings such as Coombe Hill Junior School, we reseal washrooms and kitchens in schools and businesses as well as homes.
Coombe is about 1 mile north of New Malden, in Greater London. We carry out remedial sealant for homes and businesses in Coombe and the surrounding area, as part of our work across Greater London. We cover 764 towns and villages across Greater London. For nearby work, see our London page.
We work across the KT2, KT3 and SW20 postcode area for remedial sealant. That includes homes and businesses on West Road, Crown Road and Traps Lane. If you are just outside Coombe, we cover Motspur Park (1 mile south-east), Coombe Hill (1 mile north), Kingston Vale (1 mile north-east), Norbiton (1 mile south-west) and New Malden (1 mile south). Further out, we also cover London (9 miles north-east), City of Westminster (8 miles north-east), Marylebone (8 miles north-east), Kensington (6 miles north-east), St Pancras (10 miles north-east) and Shoreditch (11 miles north-east).
What’s near Coombe
In Coombe, that means homes and buildings near Canbury School, Coombe Girls' School and The Royal Oak Public House and the streets around them. For rail, the closest station is Norbiton station, about 1 mile south-west. A little further out are Bentall Centre (1.8 miles west) and White Lodge Museum (1.8 miles north). Not far away are Kew Gardens Lake and Kingston Hill Road area.
How it works
When we get to you, we check the joints match what you told us. If anything is different, we explain it before carrying on. After that, the work takes a few hours, depending on how many layers have to come out. In Coombe, flats, stairs and shared entrances are part of the routine. If the building has a concierge, managing agent or access rules, tell us when you book.
- Surrounding tiles, trays and frames are protected first.
- Every layer of failed sealant is stripped out.
- We clean and degrease the joint and look for signs of movement or water.
- New sealant goes in once the joint is dry, and is tooled smooth.
- We give you the cure time and explain what caused the failure.
Getting ready for the visit
- Tell us if parking is tricky
- Let us know if you’ve seen damp or leaks
- Let us know about stairs, lifts or work at height
Getting a quote
For a quick quote, get us on the phone, or email us if that’s easier. Describe what needs sealing and we’ll explain what’s involved.
Related advice
Surface by surface
Mouldy bath & shower sealant
Black mould inside the bead will not scrub out. The sealant is cut out completely, the joint treated with a mould remover and dried before anti-fungal sanitary silicone goes in.
Leaking trays & enclosures
A cracked tray, failed valve or leaking waste needs a different fix. We say so rather than reseal.
FAQs for Coombe
Can you help a landlord with a rental near Norbiton station?
Yes, we work for landlords and letting agents. You can phone 0345 464 0079 or email us with the address and a few details, and we’ll give you a fixed price before we start.
Is parking a problem for a job in Coombe?
London parking needs a little planning, so let us know about permits, bays or a driveway when you book. The visit is then planned around what’s available.
Do you come to Coombe?
Yes. We cover Coombe and the rest of Greater London, as part of our work across South East England, London and Scotland. For a quote, ring 0345 464 0079 or email us.
Will there be a smell?
Sometimes, a little. It fades as the sealant cures.
My shower still leaks after a reseal. Can you sort it?
Yes. There’s usually a reason: sealant over sealant, movement or another leak, so we find that first.
Can you take off two layers of silicone?
Yes. Each layer is cut out and the residue cleaned off, then the joint is resealed once.
What do you need from me for a quote?
The location, the problem and the rough size of the job. Photos by email help too.
Which products do you use?
Products from Arbo and Everbuild, among others, picked for each joint. We explain the product when we quote.
DIY versus a professional finish
What a professional job adds is preparation and the right product. We take joints back to clean, dry surfaces, and the sealant is chosen for how the joint moves and where it is, and the work is guaranteed for a year.
Not every job suits DIY: work at height, external movement joints, fire-rated sealant and large areas call for the right materials, safe access and experience.
What we cannot put right
Before booking, it’s worth knowing the limits:
- A tray or bath that is cracked
- A tray or worktop that needs refixing first
- Water damage behind tiles that needs a tiler
Not sure which it is? You can phone 0345 464 0079 or send us an email and we’ll tell you honestly.
Surfaces we seal
- Expansion joints
- Botched or over-sealed joints
- Failed movement joints
- Mouldy bath & shower sealant
- Leaking tray & enclosure joints
- Shrunken worktop sealant
Common problems we fix in Coombe
Water from somewhere else can ruin a good seal. A leaking valve, a failed waste or cracked grout feeds water behind the bead, so the silicone goes mouldy or lets go.
The most common problems we see are:
- Movement joints that have split or pulled away
- Thick, messy sealant smeared over tiles
- Decorators’ caulk around a bath or shower
- Gaps opening along the back of the worktop
For an older house near a landmark such as Christ Church New Malden, timber floors under older bathrooms flex, so joints need a sealant that moves with them.
Questions to ask before booking
- How the surfaces are prepared before sealing
- How much experience the applicator has
- Whether they’re fully insured
- Which sealant they’ll use, and why
Leave it or put it right?
Repeat failures have a cause. Taking time to find the cause, whether it’s movement, a leak or the wrong product, is what stops it happening again. In older London homes, water behind a failed joint soaks into brick and timber without much sign, and once it shows in Coombe, the repair is bigger than a sealant job.
Homes and businesses are quoted the same way: the amount of work, the access and the products needed, plus any working-time requirements on site. Call for a quick quote and we’ll go through it with you.
Why book with us
- Trusted Arbo and Everbuild sealants
- 20+ years of sealant experience
- Experience in homes, commercial sites and hotels
- An ARBOMaster approved applicator
Read what affects the cost and customer reviews.
How to look after the new joints
No joint lasts for ever, but care makes a real difference. Our tips:
- Keep movement joints clear of mortar and paint
- Always have old sealant cut out, not covered
- Check trays and worktops do not move
- Get the cause of a repeat leak found before resealing
If we have found a cause, such as a loose tray or a leaking waste, get it fixed, because the new sealant cannot hold back a problem underneath.
Movement joints that have split let water into the structure, and the longer it’s left, the more the joint edges break down. Resealing while the edges are sound is simpler.