Greater London · England

Remedial sealant & repairs in Addington, Greater London

Removing failed, mouldy or leaking sealant and putting it right in Addington, with a one-year guarantee on every job. Call for a quick quote.

  • Dark patches showing through the sealant
  • Caulk or the wrong sealant used in a wet area
  • Floor or wall movement joints that have failed

Remedial sealant in Addington

Remedial sealant in Addington, done properly

If a joint fails again and again, something is causing it. Movement, the wrong product or a leak from somewhere else will beat any new bead. We look for the cause before we reseal. If you have leaks that keep coming back after resealing and over-sealed joints coming away, we can help, whatever the surface.

Much of London’s older housing is Victorian and Edwardian terraces, many of them now split into flats, and bathrooms were often squeezed into small rooms. Small, steamy rooms are where mould gets into sealant and grout fastest.

There’s a 12-month guarantee on every job, large or small.

Location
Addington (CR0, CR2, BR4)
Wider area
Greater London
Guarantee
One year on every job
Quotes
A clear price before any work starts
Telephone
0345 464 0079
Page updated
26 October 2026
Close-up of hands using a sealant gun on the joint between a glass shower screen and tiles

What happens on the day

Once we’re on site, we compare the joints with what we discussed. If anything is different, we explain it before carrying on. Most jobs then take 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 Addington. A visitor permit or a nearby bay makes the visit run more smoothly.

  1. The failure is looked at first, so we know whether it’s sealant, movement or water from elsewhere.
  2. Old beads and residue are removed down to clean surfaces.
  3. Mould is treated and the joint dried.
  4. The right product goes in, with backing where the joint moves.
  5. We finish neatly and point out anything that needs another trade.

Before we arrive

  • Move anything stored near the joints
  • Let us know about earlier repairs to the joints
  • For indoor joints, keep the area dry beforehand if you can

Ask for a quote

For a quote, phone 0345 464 0079 or email us and tell us where the job is and what the problem looks like. We’ll give you a clear quote before any work starts.

Get a quick quote

Advice

Why it’s worth doing now in Addington

Hidden water does the most damage: soaked floorboards, ceiling stains below and blown plaster. Dealing with the joint now is a small job by comparison. Converted houses in London often have a bathroom above someone else’s living room, and a slow leak from a failed seal can end up in the flat below. Putting it right early is much less trouble.

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. Ask us for a quote and we’ll explain what it covers.

Why Addington customers choose us

  • A sealant colour to suit the surroundings
  • Homes, businesses and hotels
  • We’re fully insured
  • More than 20 years in sealant work

See what affects the cost or customer reviews.

Aftercare tips

How long the joints last depends on use and care. Here’s what we suggest:

  • Act on a lifting corner right away
  • Keep an eye on the ceiling below the bathroom
  • Run the fan after every shower
  • Report a tray that rocks or a worktop that lifts

Keep an eye on the joint at first, particularly where the original failure was caused by movement. If anything changes, just call 0345 464 0079 or drop us an email.

If a joint has failed more than once, stop resealing it. Get the cause found first, or the next bead will go the same way.

What remedial sealant looks like in Addington

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. 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.

If you live in an older home near Church of St Mary, bathrooms in older houses have often been refitted more than once, with sealant laid over sealant. If you let a flat or house near West Wickham station, failed or mouldy sealant is worth putting right between tenancies, before it turns into a leak. As a London address, Addington can be tricky for parking: let us know about parking bays, permits or a driveway.

Addington is about 3 miles south-east of Ashburton, in Greater London. Wherever you are in the CR0 postcode area, our applicators can take on remedial sealant. Our Greater London coverage runs to 764 places, and Addington is one of them. We also work in London, around 10 miles away.

Our applicators cover all of CR0, CR2 and BR4 for remedial sealant. Whether your property is on Lodge Lane, Falconwood Road and Addington Village Road or anywhere close by, our applicators can take on the job. Other places close to Addington include Coney Hall (1 mile north), Forestdale (1 mile south), Spring Park (1 mile north), New Addington (1 mile south-east) and Selsdon (1 mile south-west). Further out, we also cover London (10 miles north), City of Westminster (12 miles north-west), Marylebone (12 miles north-west), Kensington (12 miles north-west), St Pancras (12 miles north) and Shoreditch (12 miles north).

Near you in Addington

Typical jobs here are in homes near Addington Park and John Ruskin College and the streets around them. For rail, the closest station is West Wickham station, about 1.7 miles north-east. A little further out are National Psychosis Unit (1.6 miles north) and St George's Walk (3.1 miles west). The countryside around Addington includes Bramley Bank and Duppas Hill.

Map of Addington © OpenStreetMap contributors

What we can’t put right

Sealant is not the answer to every problem, and we will tell you before we start. It won’t solve:

  • Sealant in an older building that needs testing for asbestos first
  • Water damage behind tiles that needs a tiler
  • Leaks from a shower valve, waste or pipework (a plumber’s job)

If you’re not sure, just ring 0345 464 0079 or send us an email and we will give you a straight answer.

Where we work in Addington

  • Leaking tray & enclosure joints
  • Expansion joints
  • Failed movement joints
  • Mouldy bath & shower sealant
  • Shrunken worktop sealant
  • Botched or over-sealed joints

DIY versus a professional finish

The biggest DIY mistake is sealing over old sealant. Silicone doesn’t stick to old silicone, so it lifts and traps water and mould underneath. Everything old must be removed first.

A careful DIYer can reseal a simple joint, like a short, easy-to-reach joint indoors. Where it goes wrong is sealing over the old bead, working on a wet joint or overloading the gap.

What the job involves on each surface

Leaking trays & enclosures

A cracked tray, failed valve or leaking waste needs a different fix. We say so rather than reseal.

Movement & expansion joints

Some movement joints have been filled with mortar or grout. We rake that out where it can be removed and seal with a flexible product.

Work for landlords, hotels and businesses

We also work for property managers and facilities teams. Several sites can be quoted together, and we’re fully insured.

In hotels, rooms out of use cost money, so the work can be planned room by room. We have worked in hotels as well as homes and businesses.

Common questions in Addington

Can you help a landlord with a rental near West Wickham station?

Yes, rental work is part of what we do. You can phone 0345 464 0079 or email us with the address and a few details, and we will give you a fixed price before we start.

Can worn sealant in a flat in Addington cause a leak downstairs?

Yes, and the first sign is often a stain on the ceiling below. Cutting out the old sealant and laying a new bead early stops it getting that far.

Can I do it myself?

Some simple jobs can be done by a careful DIYer. Most DIY failures come from sealing over old material, wet joints or too much sealant.

Will the old sealant be removed?

Yes. Sealing over the old bead is the commonest cause of early failure, so we never do it.

Are you an approved applicator?

Yes. We hold ARBOMaster approved applicator status and we are fully insured too.

Is remedial work guaranteed?

Yes, for 12 months. If we have pointed out another problem, getting it fixed helps the new joint last.

Where are you based?

Our base is in Crawley, and we work across South East England, London and Scotland.

Are you insured?

Yes. We are fully insured, with over 20 years’ experience in sealant work.

20+ yearsMastic and sealant specialists
ARBOMaster approvedApproved applicator for Arbo sealants
Fully insuredDomestic, commercial and hotels
One-year guaranteeOn every job