Greater London · England

Purley Remedial Sealant

Removing failed, mouldy or leaking sealant and putting it right in Purley, with a 12-month guarantee on every job. Ask us for a quote.

  • Kitchen joints letting water behind the worktop
  • Smears and lumps from a botched reseal
  • Products that weren’t meant for the joint

Book remedial sealant in Purley

About our remedial sealant in Purley

Remedial jobs in Purley generally fall into a few patterns: over-sealed joints, hidden mould, repeat leaks and split movement joints. Each is stripped back and done again properly. We work on failed movement joints, leaking tray & enclosure joints and expansion joints, and the jobs we see most are floor or wall movement joints that have failed and thick, messy sealant smeared over tiles.

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 Purley more than a cosmetic job.

We stand behind the work with a 12-month guarantee, so you are not left on your own once the job is done.

Where
Purley (CR8, CR2, CR5)
Wider area
Greater London
Guarantee
A year, on every job
Quotes
A clear quote up front
Phone
0345 464 0079
Last updated
26 October 2026
Mr Mastic applicator smiling as he applies silicone to the corner of a bath

When something else is needed

Honest advice matters more to us than a booking, so here’s what sealant can’t fix:

  • A leaking trap, valve or supply pipe
  • A bath, tray or worktop that moves until it’s properly fixed
  • Tiles that have come away from the wall

Not sure which it is? You can ring 0345 464 0079 or send us an email and we will tell you honestly.

Joints and surfaces we work on

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

Questions from Purley

Do you work for hotels and guest houses in Purley?

Yes. Hotel and guest-house work is part of what we do. Jobs can be programmed room by room, with out-of-hours working possible to arrange.

Is parking a problem for a job in Purley?

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 fix expansion and movement joints?

Yes. We cut out the failed sealant, fit backing and reseal with a flexible product.

Do I need to be at home?

If the work is inside, we need someone to let us in. After that, you can carry on with your day.

Can you remove sealant that’s been put over old sealant?

Yes. It’s slower than a standard reseal, because every layer has to come out cleanly, but it’s the only way the new joint will last.

Do you offer different sealant colours?

Most of the time, yes. We’ll explain which colours are available.

Can you strip sealant from an acrylic tray safely?

Yes, with care. The old bead is cut and lifted with tools that suit the surface, then clean off the residue. We point out any damage that is already there.

Someone resealed my shower and it’s leaking again. Can you help?

Yes. There’s generally a reason: sealant over sealant, movement or another leak, so we find that first.

Work for landlords, hotels and businesses

In hotels, rooms out of use cost money, so the work can be planned room by room. Hotel work is part of what we do, alongside homes and businesses.

From a single let to a portfolio, the work is the same standard: old sealant fully removed, joints prepared properly and a one-year guarantee.

How it works

We bring everything the job needs with us. After a quick look at the joints together, the area is protected and the work begins. Most jobs take a few hours for most joints, depending on how much old sealant has to come out. Many London jobs are in flats, so we come ready for stairs, narrow hallways and shared entrances. Mention any building rules, key holders or managing agents when you book.

  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. The joint is tooled and you are told about anything else we found.

How to prepare

  • Let us know about stairs, lifts or work at height
  • Tell us about any previous sealing or DIY attempts
  • Let us know if you’ve seen damp or leaks

Getting a quote

Want a quote for remedial sealant? Please ring 0345 464 0079 or drop us an email and tell us about the job. We will explain what we’d do and send you a clear quote before any work starts.

Get a quick quote

Advice

What happens if it’s left?

Hidden water does the most damage: wet floors, stained ceilings and swollen worktops. By comparison, sorting the joint is quick. 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 Purley, the repair is bigger than the sealant job would have been.

Every job is a little different, so each one gets its own quote. Size, access and the product the joint needs all play a part.

What you get with us

  • White, clear, grey or another colour, product permitting
  • One-year guarantee on every job
  • Sealant colour chosen to suit
  • Tidy, careful work

Take a look at how sealant jobs are priced or what customers say.

How the job changes by surface

Leaking trays & enclosures

A shower that leaks after resealing often has a tray that moves or an enclosure sealed on the wrong side. Both are checked before any new sealant goes on.

Windows & doors

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

Common problems we fix in Purley

Silicone only bonds to surfaces that are clean and dry. Soap film, dust, damp or old residue stop it gripping, and the joint starts to come away early.

These are the problems we’re asked about most:

  • Mould trapped under a layer of silicone
  • Sealant that came away because the surface wasn’t prepared
  • Thick, messy sealant smeared over tiles
  • Products that weren’t meant for the joint

In the older streets around St Swithun's, walls and floors in older homes can move, and sealant and grout show it first.

Before booking anyone

  • Which sealant they’ll use, and why
  • What guarantee comes with the work
  • Whether VAT is included
  • What happens if the job turns out different

10 questions to ask before you book

Remedial sealant in Purley: 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’s water is hard, which leaves limescale on sealant, grout and taps.

For site and facilities teams at buildings such as Christ Church CofE Primary School (Purley), 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. If you let a flat or house near Purley station, a joint that keeps failing is best fixed properly while the property is empty.

Purley is about 2 miles south-west of Croydon, in Greater London. Homes, rented property, offices and hotels in Purley can book us for remedial sealant, old or new, large or small. The work is guaranteed for a year. Purley is one of 764 towns and villages in Greater London where we work for remedial sealant. For nearby work, see our London page, about 11 miles away.

Work in CR8, CR2 and CR5 works the same way as everywhere else we cover. Streets in the area include High Street, Church Road and Brighton Road, and we cover them all. Purley sits on or near the A2022, so getting to you is simple. Neighbouring places we cover for remedial sealant include Peaks Hill (1 mile north-west), Woodcote (1 mile west), Russell Hill (1 mile north), Roundshaw (1 mile north-west) and Woodcote Green (1 mile west). Within a short drive, we also cover London (11 miles north), City of Westminster (12 miles north), Marylebone (13 miles north), Kensington (12 miles north), St Pancras (13 miles north) and Shoreditch (13 miles north).

Around Purley

Locally, jobs take us to homes and businesses close to The Jolly Farmers pub, Laleham Lea School and Thomas More Catholic School, among other places. There’s a railway station in Purley itself: Purley station. Nearby you will also find Purley War Memorial Hospital (within half a mile north-east) and St George's Walk (2.7 miles north). For a walk, there’s Duppas Hill and Foxley Wood.

Map of Purley © OpenStreetMap contributors

Can I do it myself?

A careful DIYer can reseal a simple joint, such as a straightforward joint indoors. The common mistakes are sealing over old sealant, sealing a damp joint and using far too much.

Too much sealant is as bad as too little. A thick, smeared bead looks untidy and does not move well, and getting the depth right matters as much as the look.

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