Greater London · England
Canonbury Remedial Sealant
Remedial sealant across Canonbury and nearby, with every bit of old sealant taken out first.
- Floor or wall movement joints that have failed
- Sealant that came away because the surface wasn’t prepared
- Black mould underneath the bead
Your questions about remedial sealant in Canonbury
Can parking be tricky for a visit in Canonbury?
Parking in Canonbury, as in most of London, takes a little planning: a visitor permit or a nearby bay makes the day run more smoothly.
I live in a flat in Canonbury. 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.
Do you come to Canonbury?
Yes. We work in Canonbury, as part of our work across South East England, London and Scotland. For a quote, ring 0345 464 0079 or email us.
How do I get a quote for remedial sealant in Canonbury?
Every job is different, so each one gets its own quote. For a quick quote, ring 0345 464 0079 or drop us an email with a short description of the job.
Are you insured?
Yes, we are fully insured for every job we do.
Can you quote for more than one area?
Of course. Combining jobs makes good use of the visit, so mention them when you ask for a quote.
Does remedial work come with a guarantee?
Yes, for 12 months. If we’ve pointed out another problem, getting it fixed helps the new joint last.
How long before the joint can be used?
It depends on the product and the temperature. We tell you how long to leave it before we go.
How we handle remedial sealant in Canonbury
If a joint fails again and again, something is causing it. Movement, the wrong product or a leak from somewhere else will beat any new bead. Finding that cause comes before any new sealant. If you have torn expansion joints and over-sealed joints coming away, we can help, on shrunken worktop sealant, mouldy bath & shower sealant and leaking tray & enclosure joints alike.
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.
All of our work is guaranteed for twelve months, and the guarantee is the same wherever you are.
- Place
- Canonbury (N1, N1P, E8)
- Wider area
- Greater London
- Cover
- One year on every job
- Quote
- A clear quote up front
- Call
- 0345 464 0079
- Last updated
- 26 October 2026
For landlords and businesses
We also work for businesses, from offices to washrooms and kitchens. On commercial sites, working times can be discussed when we quote.
Failed sealant is one of the commonest items on a check-out report, and it’s quick to put right between tenancies. We can quote for more than one property at once.
How the visit works
A visit follows a simple pattern: we look at the joints together, protect the area around them, carry out the job and tidy away. Most jobs take a few hours, depending on how many layers have to come out. In Canonbury, 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.
- Each layer is cut out and the residue cleaned off.
- Mould is treated and the joint dried.
- The right product goes in, with backing where the joint moves.
- We finish neatly and point out anything that needs another trade.
How to prepare
- Tell us about any water getting in
- Let us know about stairs, lifts or work at height
- Mention if the joints have been sealed before
Get a quote
Want a quote for remedial sealant? Please ring 0345 464 0079 or send us an email and tell us about the job. You will know what we plan to do, and what it will cost, before any work begins.
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Also near Canonbury
More services for Canonbury
DIY versus a professional finish
Some sealant jobs are within reach of a careful DIYer, 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.
The biggest DIY mistake is sealing over old sealant. Silicone does not stick to old silicone, so it lifts and traps water and mould underneath. Everything old must be removed first.
Why deal with it now?
Stripping out botched sealant adds time to a reseal, but rarely a lot: it takes a few hours for most joints, depending on how much old sealant has to come out. Compared with chasing the same leak every few months, it’s time well spent. In older London homes, water behind a failed joint soaks into brick and timber without much sign, and once it shows in Canonbury, the repair is bigger than a sealant job.
Doing several joints on one visit normally makes better use of the time than several visits, so tell us about everything that needs sealing. We’ll give you a clear quote for the lot.
Why us?
- Sanitary silicone with an anti-fungal additive in wet areas
- 20+ years of sealant experience
- You choose the colour before work begins
- One-year guarantee on every job
Remedial sealant around Canonbury
Canonbury 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 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.
Schools such as Rotherfield Primary School are buildings too, and we reseal washrooms and kitchens in schools and businesses as well as homes. As a London address, Canonbury can be tricky for parking: tell us about permits, visitor bays or off-street space when you book. Letting a property close to Canonbury station? Then a joint that keeps failing is best fixed properly while the property is empty.
Canonbury is about 2 miles north-east of St Pancras, in Greater London. Jobs in Canonbury get the same care as everywhere else we work: old sealant removed completely, careful preparation and a 12-month guarantee. Across Greater London, we cover 764 places, and Canonbury is one of them.
Work in N1, N1P and E8 is quoted and booked the same way as anywhere else. Streets in the area include Dove Road, Essex Road and Clare Lane, all of which we cover. You’ll find Canonbury on the A1199 and A1200, which makes it straightforward to reach with everything needed for remedial sealant. Neighbouring places we cover for remedial sealant include De Beauvoir Town (1 mile east), Mildmay (1 mile north-east), Kingsland (1 mile east), Newington Green (1 mile north) and Highbury (1 mile north-west). Further out, we also cover London (3 miles south), City of Westminster (3 miles south-west), Marylebone (3 miles south-west), Kensington (6 miles south-west), Walthamstow (4 miles north-east) and Hampstead (4 miles west).
Near you in Canonbury
In Canonbury, that means homes and buildings near Bishopsgate Institute Special Collections and Archives, City of London Academy Highbury Grove and Islington Green School and the streets around them. Also close by are New Crown pub (within half a mile north-west) and Shoreditch Park (0.6 miles south). Canonbury has its own railway station: Canonbury station. Well-known places in the area include Montfichet's Tower (2.2 miles south) and Clowns Gallery-Museum (0.7 miles east). Open spaces near Canonbury include St. James's Park Lake and Ludgate Hill.
Aftercare tips
Good habits help new joints last longer. Our tips:
- Run the fan after every shower
- Look for stains below bathrooms now and then
- Deal with small splits early
- Use a soft cloth, not a scourer, on silicone
Keep the room ventilated: use the extractor or open a window after showering.
Leaks through failed sealant grow over time. Every shower or downpour sends more water through, into whatever is behind or below. Early action keeps it to a sealant job.
When it is not the sealant
A few problems are outside what sealant work can do:
- Failed tanking or loose tiles behind the sealant
- Cracks in the fitting rather than the joint
- Plumbing leaks behind walls or under trays
If in doubt, phone 0345 464 0079 or email us and we will say what we think.
Joints and surfaces we work on
- Failed movement joints
- Expansion joints
- Shrunken worktop sealant
- Leaking tray & enclosure joints
- Mouldy bath & shower sealant
- Botched or over-sealed joints
What the job involves on each surface
Movement & expansion joints
Bonding on three sides is a common reason movement joints tear. Backing rod or bond-breaker tape prevents it, letting the sealant flex between the two faces.
Leaking trays & enclosures
Repeat shower leaks often come from a tray that flexes or an enclosure sealed in the wrong place. We check both before we reseal.