Greater London · England
Remedial Sealant in New Cross
Removing failed, mouldy or leaking sealant and putting it right in New Cross, with a 12-month guarantee on every job. Ask us for a quote.
- Caulk or the wrong sealant used in a wet area
- Movement joints that have split or pulled away
- Thick, messy sealant smeared over tiles
Remedial sealant for homes and businesses in New Cross
In New Cross, as anywhere, remedial jobs tend to look alike: sealant over sealant, mould under the bead, leaks that come back and movement joints that have split. We strip each one back and start from scratch. If you are dealing with movement joints that have split or pulled away and sealant that came away because the surface wasn’t prepared, we can help, whatever the surface.
Hard London water leaves limescale on sealant, grout and taps alike. For a bathroom or kitchen in New Cross, getting the joints right keeps water where it belongs and the room looking clean.
You’re covered for a year from the day we finish. If there’s a problem with it, please ring 0345 464 0079 or drop us an email.
- Location
- New Cross (SE8, SE14, SE4)
- Region
- Greater London
- Guarantee
- A year, on every job
- Quote
- A clear price before we start
- Telephone
- 0345 464 0079
- Updated
- 26 October 2026
Looking after it afterwards
Simple care keeps the joints in good condition. Our advice:
- Don’t add new sealant on top of old
- Report a tray that rocks or a worktop that lifts
- Clean sealant with mild products only
- Keep movement joints clear of mortar and paint
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 send us an email.
Don’t keep resealing the same joint. Have someone find out why, or the next bead will go the same way.
FAQs for New Cross
Can parking be tricky for a visit in New Cross?
In much of London, parking needs planning: a visitor permit or a nearby bay makes the day run more smoothly.
Do you work for hotels and guest houses in New Cross?
Yes, we work for hotels as well as homes and businesses. A room-by-room programme keeps most rooms in use while the work goes on.
Can I choose the sealant colour?
Usually, yes. White, clear and grey are common, and other colours are available for many products, and we agree the colour with you before any work starts.
Do the sealants smell?
Some sealants have a smell while they cure, which fades as it sets. Opening a window helps.
I rent my home. Can I book you?
Yes, but check with your landlord or agent first. Landlords are often happy for the work to be arranged.
What does remedial sealant cost?
It depends on the job, so we quote each one individually. For a quick quote, ring 0345 464 0079 or drop us an email with a short description of the job.
Is it worth trying it myself?
Sometimes. Preparation is everything: all the old sealant out, and a clean, dry joint. We can always put it right if it fails.
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.
DIY versus a professional finish
Sealing over old silicone is the commonest DIY error. Silicone does not stick to old silicone, so it peels away and traps moisture behind it. Everything old must be removed first.
Some jobs are best left to a professional: work at height, external movement joints, fire-rated sealant and large areas call for the right materials, safe access and experience.
Surface by surface
Windows & doors
Frames resealed over the top end up with hard, layered mastic. We remove it all and clean back to sound surfaces.
Worktops & kitchens
A loose worktop splits its sealant. It needs fixing down first, which we’ll point out.
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.
We also work for businesses, from offices to washrooms and kitchens. On commercial sites, working times can be discussed when we quote.
What else we do in New Cross
How we quote for remedial sealant
There’s no set price list, because jobs vary so much. The quote depends on:
- The size of the job
- Access and height
- How much old sealant there is and how hard it is to remove
- Which sealant suits the joint
There are no prices on our website, because each job is priced on what it involves. Call for a quick quote and we will talk you through it.
Helping us quote
The more you tell us, the more accurate the quote. When you ask for a quote, tell us:
- If someone has resealed it before
- Pictures of the joints, sent by email
- Whether it’s a home or a business
- What’s wrong with the joints now
To get a quote, phone 0345 464 0079 or email us with the location and a short description of the problem. You’ll have a clear quote before we start.
When something else is needed
Some problems need a builder, plumber or other trade rather than us:
- A tray or bath that is cracked
- A bath, tray or worktop that moves until it’s properly fixed
- Older mastics that may need an asbestos check before removal
Not sure which it is? You can call 0345 464 0079 or email us and we’ll tell you honestly before you book.
Surfaces we seal
- Mouldy bath & shower sealant
- Leaking tray & enclosure joints
- Failed movement joints
- Shrunken worktop sealant
- Expansion joints
- Botched or over-sealed joints
How it works
On the day, we look over the joints with you first, so there are no surprises. Surfaces next to the work are protected before work begins. The work generally takes a few hours, depending on how many layers have to come out. In a London area like New Cross, the main things to plan are parking and access: tell us about permits, visitor bays or off-street space, which floor we are working on and whether there’s a lift.
- First we work out whether the problem is the sealant, movement or a leak.
- Each layer is cut out and the residue cleaned off.
- 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 are told about anything else we found.
Preparing for the visit
- Clear items away from the joints we’re working on
- Tell us about any previous sealing or DIY attempts
- Mention any leaks or damp you’ve noticed
Getting a quote
A good description makes for an accurate quote. Let us know the location, the problem and roughly how many joints, and email photos if that is easy.
Advice
What remedial sealant looks like in New Cross
London has hard water, so limescale builds up on sealant, grout and fittings. New Cross has hotels and guest accommodation nearby. Hotel bathrooms are part of our work as well as homes, and can be done room by room.
In the older streets around St James's Church, older homes can move a little, which is hard on rigid grout and tired sealant. As a London address, New Cross can be tricky for parking: tell us about permits, visitor bays or off-street space when you book. Schools such as Myatt Garden Primary 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.
New Cross is about 3 miles south-east of London, in Greater London. If you need remedial sealant in New Cross, it’s easy to get a quote: please call 0345 464 0079 or drop us an email. We cover Greater London from our Crawley base, New Cross included. New Cross is one of 764 places in Greater London we cover for remedial sealant.
Every address in SE8, SE14 and SE4 is covered for remedial sealant. That includes homes and businesses on Ivy Road, Mona Road and Avon Road. New Cross sits on or near the A2209 and A2210, so getting to you is simple. Neighbouring places we cover for remedial sealant include St Johns (1 mile east), Telegraph Hill (1 mile south-west), Deptford (1 mile north-east), Nunhead (1 mile south-west) and Lewisham (1 mile south-east). Within a short drive, we also cover London (3 miles north-west), City of Westminster (6 miles north-west), Marylebone (6 miles north-west), Kensington (8 miles west), St Pancras (5 miles north-west) and Shoreditch (4 miles north-west).
Local landmarks in New Cross
We work in homes and buildings around Wickham Arms, Fordham Park and Addey and Stanhope School. You will also find St. Paul's (0.7 miles north-east) and Laban Centre (0.9 miles north-east). New Cross has its own railway station: New Cross station. Well-known places in the area include Fan Museum (1.2 miles north-east) and Greenwich Castle (1.5 miles east). Green spaces nearby include St. James's Park Lake and Tower Hill.