Greater London · England
Remedial sealant & repairs in Crofton, Greater London
Remedial sealant across Crofton and nearby, with old sealant always removed completely and a one-year guarantee.
- Torn expansion joints
- Beads that never stuck properly
- Decorators’ caulk around a bath or shower
Aftercare tips
How long the joints last depends on use and care. We suggest:
- Ask why a joint failed before redoing it
- Never fill a movement joint with mortar or grout
- Use a soft cloth, not a scourer, on silicone
- Check ceilings under showers for marks
Where we have pointed out another fault, have it put right, or the new joint may fail again.
Mould under a second layer of sealant keeps growing out of sight. By the time it shows through, the joint is well past saving.
How we handle remedial sealant in Crofton
Remedial work is what we do when sealant has failed or been done badly. New sealant over old, smeared beads, unsuitable products and hidden mould all need stripping out before the joint can be done properly. We work on botched or over-sealed joints, shrunken worktop sealant and failed movement joints, and the jobs we see most are a shower that leaks however often it’s resealed and sealant that came away because the surface wasn’t prepared.
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 Crofton more than a cosmetic job.
All of our work is guaranteed for twelve months, in Crofton and everywhere else we cover.
- Place
- Crofton (BR6, BR5)
- Wider area
- Greater London
- Cover
- One year on every job
- Price
- A clear price before work begins
- Call
- 0345 464 0079
- Last updated
- 26 October 2026
Should I try it myself first?
The biggest DIY mistake is sealing over old sealant. Silicone doesn’t stick to old silicone, so it peels away and traps moisture behind it. All the old material has to come out first.
A DIY attempt does not rule out a professional job. We cut it out and start again, so just mention it when you contact us.
When to call us in Crofton
Joints that move need sealant that can stretch. Flexing baths, rocking trays and building movement joints will split a rigid or thin bead.
These are the problems we are asked about most:
- Floor or wall movement joints that have failed
- Sealant applied over old sealant that has lifted
- Beads that never stuck properly
- Black mould underneath the bead
Schools such as Crofton Infant School are buildings too, and 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.
Questions to ask before booking
- Who does the work, and how experienced they are
- What happens if they find a problem under the old sealant
- Whether you can choose the colour
- Which sealant they’ll use, and why
What we cannot put right
We will not take on work that will not last, so here’s what sealant cannot put right:
- Plumbing leaks behind walls or under trays
- Failed tanking or loose tiles behind the sealant
- Cracks in the fitting rather than the joint
Not sure which it is? You can ring 0345 464 0079 or email us and we will tell you honestly before you book.
Joints and surfaces we work on
- Expansion joints
- Mouldy bath & shower sealant
- Leaking tray & enclosure joints
- Failed movement joints
- Botched or over-sealed joints
- Shrunken worktop sealant
Common questions in Crofton
I live in a flat in Crofton. Can a failed seal leak into the flat below?
It can, yes: water that gets past a split bead or cracked grout often runs under the tray and shows on the ceiling below. It’s far simpler to replace tired sealant early than to deal with a neighbour’s ceiling.
Is parking a problem for a job in Crofton?
London parking needs a little planning, so let us know about permits, bays or a driveway when you book. That way the visit can be planned around it.
Do you work for hotels and businesses?
Yes. Commercial and hotel work is a large part of what we do. Working times can be discussed when we quote.
Are you fully insured?
Yes. We are fully insured.
Can you take off two layers of silicone?
Yes. We cut out all the layers and clean off the film, then the joint is resealed once.
Which products do you use?
Products from Arbo and Everbuild, among others, picked for each joint. We’ll tell you what we’re using and why.
How much does remedial sealant cost in Crofton?
Size, access and the old material all affect the cost. Call for a quick quote.
How long does the work take?
Longer than a simple reseal, because every layer has to come out. For most joints, it’s a few hours.
Nearby places to Crofton
Other services in Crofton
Different surfaces, different methods
Windows & doors
Smeared or badly matched mastic can be cut out and redone neatly, matched to the frame colour.
Movement & expansion joints
Joints filled with mortar, grout or rigid filler cannot move. Where it can be raked out, we replace it with flexible sealant.
Leave it or put it right?
Adding more sealant is the usual quick fix, and it rarely works. It can’t bond to what’s underneath, so the leak carries on and there’s now more to remove. 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 Crofton, the repair is bigger than the sealant job would have been.
A failed joint rarely gets cheaper to fix by waiting. If you are unsure, phone 0345 464 0079 or email us and we will give you an honest view and a quote.
Why book with us
- Approved under the ARBOMaster scheme
- Sealant colour chosen to suit
- We never seal over old sealant
- Tidy, careful work
See our cost guide and our reviews.
What remedial sealant looks like in Crofton
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, so limescale builds up on sealant, grout and fittings, and it has to be cleaned off before new sealant goes in.
If you let a flat or house near Orpington station, botched sealant from a previous quick fix is easier to strip out between tenants. For an older house near a landmark such as Church of Jesus Christ of Latter-Day Saints, walls and floors in older homes can move, and sealant and grout show it first.
Crofton is about 1 mile south-west of Orpington, in Greater London. Our applicators cover remedial sealant for householders, landlords and businesses in Crofton and nearby, as part of our work across Greater London. Our Greater London coverage runs to 764 places, Crofton among them. We also work in London, around 11 miles away.
Our applicators cover all of the BR6 and BR5 postcode area for remedial sealant and the streets around it. Whether your property is on Grange Road, Reed Avenue and Gumping Road or anywhere close by, we can help. Nearby, we also carry out remedial sealant in Broom Hill (1 mile north-east), Locksbottom (1 mile west), Petts Wood (1 mile north), Farnborough (1 mile south) and Green Street Green (2 miles south). We also work in nearby towns such as London (11 miles north-west), City of Westminster (14 miles north-west), Marylebone (14 miles north-west), Kensington (15 miles north-west), St Pancras (14 miles north-west) and Shoreditch (12 miles north-west).
What’s near Crofton
Around Crofton, our work takes us to homes and buildings near The Priory School, Newstead Wood School and The Maxwell pub. Crofton has its own railway station: Orpington station. Nearby you’ll also find Orpington Hospital (1.1 miles south-east) and Crofton Roman Villa (within half a mile south-east). The countryside around Crofton includes Summer Hill and The Warren.
The process
Before we leave, we go over the finished joints with you and tell you how long to leave it. The work normally takes a few hours for a typical bath or shower, longer where several layers have been applied, depending on the amount of work. In Crofton, 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.
- The failure is looked at first, so we know whether it’s sealant, movement or water from elsewhere.
- Old beads and residue are removed down to clean surfaces.
- We treat any mould and dry the joint thoroughly.
- The right product goes in, with backing where the joint moves.
- The joint is tooled and you’re told about anything else we found.
Preparing for the visit
- Tell us about access, such as stairs, a lift or high-level joints
- For indoor joints, keep the area dry beforehand if you can
- Clear items away from the joints we’re working on
Getting a quote
For a quick quote, get us on the phone, or email us if that is easier. Tell us about the joints that need doing and we’ll explain what’s involved and give you a clear quote.