Greater London · England
Remedial Sealant in Pentonville
Removing failed, mouldy or leaking sealant and putting it right for Pentonville, backed by a 12-month guarantee. Call for a quick quote.
- Repeat leaks from the same joint
- Wide, uneven beads that look worse than the old ones
- Beads that never stuck properly
Keeping the joints in good condition
Aftercare is simple:
- Get the cause of a repeat leak found before resealing
- Look for stains below bathrooms now and then
- Report a tray that rocks or a worktop that lifts
- Never seal over old silicone
Keep the room ventilated: use the extractor or open a window after showering.
Warning signs: 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.
About our remedial sealant in Pentonville
Removing failed sealant is the hardest part of the job. We cut out every layer, clear the residue and degrease the surfaces, without scratching tiles, trays or frames. New sealant only bonds to a clean, dry joint. Typical jobs include movement joints that have split or pulled away and a second bead peeling off the first, across expansion joints, botched or over-sealed joints and leaking tray & enclosure joints.
In much of London, period terraces have been converted into flats over the years, with bathrooms fitted into whatever space was available. Small, steamy rooms are where mould gets into sealant and grout fastest.
The work is guaranteed for twelve months. If something is not right with it in that time, tell us and we’ll put it right.
- Location
- Pentonville (N1, N1P, EC1V)
- Wider area
- Greater London
- Cover
- A year, on every job
- Quotes
- A clear price before we start
- Telephone
- 0345 464 0079
- Page updated
- 26 October 2026
Leave it or put it right?
A joint that has failed twice will fail again unless the cause is dealt with. Taking time to find the cause, whether it’s movement, a leak or the wrong product, is what stops it happening again. Converted houses in London often have a bathroom above someone else’s living room, so a small leak from tired sealant can mean a neighbour’s ceiling and a lot of disruption. Dealing with it early is far simpler.
What it costs depends on how much there is to do, how hard the old material is to remove and access to the work. You’ll have a clear quote before any work starts.
Why book with us
- We leave the area clean and tidy
- Sealant colour chosen to suit
- Trusted Arbo and Everbuild sealants
- We are fully insured
See what affects the cost and our reviews.
DIY sealant or a professional job?
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.
Sealing over old silicone is the commonest DIY error. Silicone doesn’t stick to old silicone, so it peels away and traps moisture behind it. Everything old must be removed first.
Your questions about remedial sealant in Pentonville
Do you work in hotels near Pentonville?
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.
Do you work for landlords with property near Essex Road station?
Yes, rental work is part of what we do. Just phone 0345 464 0079 or drop us an email and tell us about the property, and we will send you a clear quote.
What sealant do you use?
The product depends on the job: sanitary silicone where it gets wet, and sealants suited to movement or weather elsewhere. Brands we use include Arbo and Everbuild.
Can you strip sealant from an acrylic tray safely?
Yes. Careful removal is most of a remedial job, particularly on softer surfaces like acrylic.
Can I add another job to the visit?
Yes, and it often makes sense. Doing several areas at once is normally more efficient.
Will the old sealant be removed?
Yes. We cut out all the old sealant and clean the joint before applying anything new.
Where are you based?
We’re based in Crawley, and we cover South East England, London and all of Scotland.
Do you fix expansion and movement joints?
Yes. We cut out the failed sealant, fit backing and reseal with a flexible product.
What remedial sealant looks like in Pentonville
Pentonville has hotels and guest accommodation nearby. Hotel bathrooms are part of our work as well as homes, and can be done room by room. London’s water is hard, so limescale builds up on sealant, grout and fittings.
Pentonville is in London, so parking needs planning: tell us about permits, visitor bays or off-street space when you book. For an older house near a landmark such as Church of Saint Peter, walls and floors in older homes can move, and sealant and grout show it first.
Pentonville is about 1 mile north-east of St Pancras, in Greater London. We carry out remedial sealant for householders, landlords and businesses in Pentonville and nearby. Our Greater London coverage runs to 764 places, Pentonville among them.
We cover every part of the N1, N1P and EC1V postcode area for remedial sealant and the streets around it. That includes homes and businesses on City Road, Noel Road and Dewey Road. Pentonville is on the A1200, which makes it straightforward to reach. If you are just outside Pentonville, we cover Angel (1 mile south-west), Islington (1 mile north), Clerkenwell (1 mile south), Barnsbury (1 mile north-west) and St Pancras (1 mile south-west). Further out, we also cover City of Westminster (3 miles south-west), Kensington (5 miles south-west), Walthamstow (5 miles north-east), Hampstead (4 miles west), Ruislip (13 miles west) and Brompton (4 miles south-west).
Landmarks near Pentonville
We work in homes and buildings around Islington Green School, The Camden Head Public House and Pilsudski Institute of London, among other places. Also close by are City of London Academy Islington (less than half a mile east) and Barnard Park (less than half a mile west). Pentonville’s nearest station is Essex Road station, about 0.5 miles north-east. Well-known places in the area include Museum of Funeral History (0.7 miles south-west) and Brunswick Centre (1.2 miles south-west). Not far away are Ludgate Hill and St. James's Park Lake.
Nearby places to Pentonville
Other services in Pentonville
What affects the cost of remedial sealant
We don’t publish a price list. What we look at:
- Which sealant suits the joint
- The number of rooms or windows
- When we can work, for business premises
- Whether there’s mould to deal with
Rather than a set price list, we price the job in front of us: how many joints, what’s in them now and how we reach them. The price is agreed before we begin.
Asking for a quote
To make quoting easier, let us know:
- A few photos by email, if you can
- Roughly how big the job is
- Where the job is, and your postcode
- Access, such as stairs, a lift or height
Every job is quoted individually, so the first step is telling us about yours. Just call 0345 464 0079 or send us an email with the details.
Common problems we fix in Pentonville
Even good sealant ages. Over the years it shrinks, hardens and gets colonised by mould, faster where ventilation is poor. Then the only fix is removal and a new bead.
If you can see any of these, it’s time to have the joints looked at:
- Torn expansion joints
- Thick, messy sealant smeared over tiles
- A shower that leaks however often it’s resealed
- Worktop sealant that has shrunk and split
If you look after a building such as St John Evangelist RC Primary School, we reseal washrooms and kitchens in schools and businesses as well as homes.
Questions to ask before you book
- Which colour the sealant will be
- What happens if they find a problem under the old sealant
- Is VAT in the price?
- What preparation is included
The process
We keep the work tidy and contained to the joints we are treating. Expect the work to take a few hours for most joints, depending on how much old sealant has to come out. In Pentonville, as in most of London, parking needs a little planning. It helps if you can point us to a visitor permit or a bay close to the door.
- Surrounding tiles, trays and frames are protected first.
- The botched or failed sealant is cut away completely.
- We clean and degrease the joint and look for signs of movement or water.
- New sealant goes in once the joint is dry, and is tooled smooth.
- You get the cure time and our view on why the joint failed.
Before we arrive
- On commercial sites, let us know about site rules
- Let us know about parking restrictions
- Keep pets and children clear of the area while we work
How to get a quote
We do not publish a price list, as no two jobs are quite the same. Instead, your job gets its own clear quote. To arrange one, ring 0345 464 0079 or drop us an email.
Read more
For landlords and businesses
Landlords and letting agents in Pentonville can book us as well as householders. Resealing between tenancies is a simple way to keep a property in good order.
Hotels need rooms back in use, so the work can be planned room by room around your bookings where we can. Hotel work is part of what we do, alongside homes and businesses.