Greater London · England
Remedial sealant & repairs in St Luke's, Greater London
Failed sealant joints in St Luke's need attention? We cut out the old, prepare the joints and apply the right sealant, and the work is guaranteed for a year.
- Thick, messy sealant smeared over tiles
- Gaps opening along the back of the worktop
- A second bead peeling off the first
What happens on the day
Once we are on site, we compare the joints with what we discussed. If we find something unexpected, we talk it through with you first. Most jobs then take a few hours for most joints, depending on how much old sealant has to come out. In St Luke's, as in most of London, parking needs a little planning. A visitor permit or a nearby bay makes the visit run more smoothly.
- Surrounding tiles, trays and frames are protected first.
- The botched or failed sealant is cut away completely.
- The joint is degreased and checked for movement and leaks.
- New sealant goes in once the joint is dry, and is tooled smooth.
- We give you the cure time and explain what caused the failure.
Getting ready for the visit
- Let us know about earlier repairs to the joints
- Try not to wet indoor joints just before the visit
- Let us know about parking restrictions
Get a quote
Quotes start with a quick conversation. Tell us what’s wrong, where it is and how much there is, and we’ll talk you through what we’d do. When it suits you, call 0345 464 0079 or email us.
Advice
About our remedial sealant in St Luke's
Water on the floor doesn’t always mean failed silicone. Cracked trays, leaking wastes and faulty valves often look like a sealant problem. When the fault is elsewhere, we say so instead of resealing for the sake of it. We work on botched or over-sealed joints, shrunken worktop sealant and failed movement joints, and people most often call us about caulk or the wrong sealant used in a wet area and wide, uneven beads that look worse than the old ones.
Much of London’s older housing is Victorian and Edwardian terraces, many of them now split into flats, and bathrooms were often squeezed into small rooms. A compact bathroom that steams up every day is hard on silicone and grout, and homes in St Luke's are no different.
A one-year guarantee comes as standard.
- Where
- St Luke's (N1, EC1V, EC2A)
- Wider area
- Greater London
- Guarantee
- One year on every job
- Quotes
- A clear quote up front
- Telephone
- 0345 464 0079
- Page updated
- 26 October 2026
How the job changes by surface
Leaking trays & enclosures
If the tray is cracked, or the leak is from the valve or waste, sealant will not fix it. We say so rather than reseal.
Over-sealed & botched joints
A botched joint can hide two or three layers of sealant, including the smears and film on surrounding tiles. Only a clean joint will take a new bead.
What affects the quote in St Luke's
You will get a clear quote before we start. It’s based on:
- When we can work, for business premises
- Whether old sealant or filler has to be cut out
- How easy the joints are to reach
- How many areas need sealing
The cost reflects the work involved, not a rough estimate. That’s why we ask about the job first and agree the price before starting.
What to tell us for a quote
You do not need to know the technical terms. It helps if you can tell us:
- Whether it’s a home or a business
- The rough size of the job
- The address or postcode of the job
- Whether it has been sealed before
Getting a quote is simple: let us know what needs doing and where and its rough size. A few pictures by email make the job easier to understand, and we’ll take it from there.
FAQs for St Luke's
Do you work for landlords with property near Old Street station?
Yes. We work for landlords and letting agents as well as householders. You can ring 0345 464 0079 or email us with the details for a clear quote.
Do you work for hotels and guest houses in St Luke's?
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 you remove old sealant without damaging the bath?
Yes. The old bead is cut and lifted with tools that suit the surface, then clean off the residue. Any existing damage is pointed out before work begins.
How long should I leave it?
Different products cure at different speeds, so please follow the time we give you.
Which products do you use?
Quality sealants from brands including Arbo and Everbuild, chosen to suit the joint. We explain the product when we quote.
Is it worth trying it myself?
Some simple jobs can be done by a careful DIYer. The usual mistakes are sealing over old sealant, sealing a damp joint and using too much.
Can failed expansion joints be resealed?
Yes. Backing sets the depth and stops the sealant sticking to the back, which lets it stretch.
Do the sealants smell?
Some sealants have a smell while they cure, but it fades. Ventilation helps.
How to look after the new joints
Aftercare is simple, and it makes a real difference:
- Do not add new sealant on top of old
- Look for stains below bathrooms now and then
- Keep bleach and abrasives off the bead
- Keep the room well ventilated
If the joint ever needs renewing, have it cut out, not sealed over. Over-sealing is how many remedial jobs start.
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.
Bathrooms and kitchens in St Luke's
London’s water is hard, so limescale builds up on sealant, grout and fittings. St Luke's has hotels and guest accommodation nearby. As well as homes, we work in hotel bathrooms, where resealing and regrouting can be done room by room.
St Luke's is in London, so parking needs planning: let us know about parking bays, permits or a driveway. Schools such as St Luke's CofE Primary School are buildings too, and its toilets, changing areas and kitchens need their sealant renewed like any other building’s. If you let a flat or house near Old Street station, a joint that keeps failing is best fixed properly while the property is empty.
St Luke's is about 2 miles north of London, in Greater London. Homes, rented property, offices and hotels in St Luke's can book us for remedial sealant. Every job comes with our 12-month guarantee. St Luke's is one of 764 towns and villages in Greater London where we work.
Every address in N1, EC1V and EC2A is within our area for remedial sealant. If you need remedial sealant at a property on Long Lane, City Road and Moor Lane or a nearby road, our applicators can take on the job. You will find St Luke's on the A1 and A501, so it’s easy for us to get to. If you are just outside St Luke's, we cover Finsbury (1 mile south), Barbican Estate (1 mile south), Shoreditch (1 mile east), Hoxton (1 mile north-east) and City of London (1 mile south). Further out, we also cover City of Westminster (3 miles west), Kensington (5 miles west), Walthamstow (5 miles north-east), Hampstead (4 miles north-west), Ruislip (14 miles west) and Brompton (4 miles south-west).
Local landmarks in St Luke's
Locally, jobs take us to homes and businesses close to Barts Health Archives, Charterhouse Square School and The Masque Haunt pub and the streets around them. Also close by are St Mary-at-Hill (1.1 miles south), Central Foundation Boys' School (less than half a mile east) and Artillery Ground (less than half a mile south-east). There’s a railway station in St Luke's itself: Old Street station. Nearby you’ll also find Gabriel's Wharf (1.3 miles south-west) and Montfichet's Tower (0.9 miles south-west). For a walk, there’s St. James's Park Lake and Barnsbury Wood.
What we can’t put right
It helps to know what we cannot do:
- Sealant in an older building that needs testing for asbestos first
- Plumbing leaks behind walls or under trays
- A cracked shower tray or bath (that needs repair or replacing)
Not sure which it is? You can phone 0345 464 0079 or drop us an email and we’ll tell you honestly.
Surfaces we seal
- Leaking tray & enclosure joints
- Shrunken worktop sealant
- Botched or over-sealed joints
- Expansion joints
- Failed movement joints
- Mouldy bath & shower sealant
Towns and villages near St Luke's
Also in St Luke's
DIY sealant or a professional job?
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.
If you do try it yourself, take your time over the preparation: take out all the old sealant, make sure the joint is clean and dry, and give it the full cure time. If it does not work out, we can still put it right.
Landlords, agents and businesses in St Luke's
We also work for property managers and facilities teams in St Luke's and across Greater London. We can quote a run of properties together.
We also work for businesses, from offices to washrooms and kitchens. For commercial premises, we can talk through working times when we quote.