Greater London · England

Remedial Sealant in Copse Hill

Removing failed, mouldy or leaking sealant and putting it right for Copse Hill, backed by a 12-month guarantee. Ask us for a quote.

  • Sealant applied over old sealant that has lifted
  • Beads that never stuck properly
  • Wide, uneven beads that look worse than the old ones

Trusted remedial sealant in Copse Hill

When something else is needed

New sealant can’t fix everything, and we will tell you before we start. Sealant will not put right:

  • Older mastics that may need an asbestos check before removal
  • Cracks in the fitting rather than the joint
  • Movement from fittings that are not supported

If you’re not sure, just phone 0345 464 0079 or drop us an email and we will give you a straight answer before you book.

Joints and surfaces we work on

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

Remedial sealant in Copse Hill

Remedial jobs in Copse Hill generally fall into a few patterns: sealant over sealant, mould under the bead, leaks that come back and movement joints that have split. Each is stripped back and done again properly. We work on failed movement joints, shrunken worktop sealant and expansion joints, and people most often call us about repeat leaks from the same joint and torn expansion joints.

In much of London, period terraces have been converted into flats over the years, with bathrooms fitted into whatever space was available. A compact bathroom that steams up every day is hard on silicone and grout.

We stand behind the work with a 12-month guarantee.

Where
Copse Hill (SW20, SW19)
Region
Greater London
Guarantee
12 months on all our work
Price
A clear quote up front
Telephone
0345 464 0079
Updated
26 October 2026
Fresh white silicone going into the corner where a shower screen meets the tiled wall

Surface by surface

Mouldy bath & shower sealant

Repeat mould generally points to a damp, poorly aired room. We’ll reseal and tell you if extraction looks to be the issue.

Windows & doors

Smeared or badly matched mastic can be cut out and redone neatly, in a colour that suits the frame.

Remedial sealant around Copse Hill

Copse Hill has hotels and guest accommodation nearby. As well as homes, we work in hotel bathrooms, where resealing and regrouting can be done room by room. 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.

Managing a site like Hollymount School? Then its toilets, changing areas and kitchens need their sealant renewed like any other building’s. As a London address, Copse Hill can be tricky for parking: let us know about parking bays, permits or a driveway.

Copse Hill is about 1 mile south-west of Wimbledon, in Greater London. Homes, rented property, offices and hotels in Copse Hill can book us for remedial sealant, old or new, large or small. Every job comes with our 12-month guarantee. Our area takes in 764 places across Greater London, large and small. We also work in London, around 8 miles away.

All of SW20 and SW19 is within our area for remedial sealant. Streets in the area include Camp Road, Almer Road and Mckay Road, all of which we cover. Other places close to Copse Hill include Crooked Billet (1 mile north-east), Bushey Mead (1 mile south-east), Motspur Park (1 mile south-west), Wimbledon (1 mile north-east) and Raynes Park (1 mile south). Further out, we also cover London (8 miles north-east), City of Westminster (7 miles north-east), Marylebone (8 miles north-east), Kensington (6 miles north), St Pancras (9 miles north-east) and Shoreditch (10 miles north-east).

Around Copse Hill

Typical jobs here are in homes near The Norwegian School in London, Crooked Billet pub and Ursuline Preparatory School, among other places. The closest station to Copse Hill is Raynes Park station, roughly 0.6 miles south. Other landmarks nearby include Wimbledon Museum (0.8 miles north-east) and Atkinson Morley Hospital (under half a mile west). For a walk, there’s Kew Gardens Lake and Henman Hill.

Map of Copse Hill © OpenStreetMap contributors

Aftercare tips

A little care helps the new joints last. We recommend:

  • Do not wait for a small gap to become a leak
  • Find out why the sealant failed first
  • Clean sealant with mild products only
  • Keep an eye on the ceiling below the bathroom

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.

Signs to act on: sealant lifting at the ends, a second bead visible on top of the first, black mould under the silicone, or stains below a bathroom. Any of them means it’s time for remedial work.

Copse Hill: your questions answered

I let a flat near Raynes Park station. Can you help?

Yes. We work for landlords and agents as well as householders, and several properties can be quoted together. You can ring 0345 464 0079 or email us with the details for a clear quote.

Do you work for hotels and guest houses in Copse Hill?

Yes, we work for hotels as well as homes and businesses. Rooms can be done a few at a time, so the building stays open.

Is there any odour?

Sometimes, a little. It fades as the sealant cures, and ventilation helps.

How do I get a quote for remedial sealant in Copse Hill?

We do not publish prices, because the cost depends on the job: its size, the old material, access and the product needed. We agree the price before any work begins.

Do I have to be there?

For indoor joints, yes, someone needs to let us in. After that, you can carry on with your day.

What if resealing will not fix my leak?

You will hear it from us. If it’s a cracked tray, a failed valve or a leaking waste, resealing won’t fix it, and we won’t reseal for the sake of it.

Can you take off two layers of silicone?

Yes. We cut out all the layers and clean off the film, before resealing with a single bead.

Can you quote for more than one area?

Yes. More than one area can be quoted together.

The process

On the day, we look over the joints with you first, so there are no surprises. We protect the surfaces around the joints before any work begins. Most jobs take a few hours, depending on how many layers have to come out. Parking in much of London is by permit or pay-and-display, so it helps to know what’s near you in Copse Hill. It helps if you can point us to a visitor permit or a bay close to the door.

  1. We protect the surfaces around the joint.
  2. Every layer of failed sealant is stripped out.
  3. We clean and degrease the joint and look for signs of movement or water.
  4. Once dry, a suitable sealant is applied and tooled.
  5. You get the cure time and our view on why the joint failed.

Getting ready for the visit

  • Plan for the work area to be out of bounds to pets and children
  • Mention if the joints have been sealed before
  • For indoor joints, keep the area dry beforehand if you can

Ask for a quote

The more we know about the job, the more useful the quote. Tell us where the job is, what’s wrong and how much there is.

Get a price

Read more

For landlords and businesses

Mouldy or split sealant often shows up at the end of a tenancy. Several properties can be quoted together.

For anyone letting property in or around Copse Hill, several properties can be quoted together. Send us the addresses and the work at each.

Can I do it myself?

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.

Too much sealant is as bad as too little. A heavy bead looks messy and copes badly with movement, and the joint depth matters as much as the finish.

Do you need remedial sealant in Copse Hill?

One of the commonest remedial jobs is sealant on top of sealant. Silicone doesn’t bond to silicone, so the top layer lifts and water and mould collect between the two.

If you can see any of these, it’s time to have the joints looked at:

  • Leaks that keep coming back after resealing
  • Torn expansion joints
  • Caulk or the wrong sealant used in a wet area
  • A second bead peeling off the first

If you live in an older home near Christ Church, older homes can move a little, which is hard on rigid grout and tired sealant.

Comparing quotes

  • What product goes in the joint
  • How hidden problems are handled
  • What the quote includes, VAT included or not
  • Who turns up on the day

Our hiring checklist

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