Greater London · England
Remedial Sealant in Mildmay
Our applicators work in Mildmay on removing failed, mouldy or leaking sealant and putting it right. Old sealant removed completely, joints prepared properly and a one-year guarantee.
- Black mould underneath the bead
- Floor or wall movement joints that have failed
- Decorators’ caulk around a bath or shower
How it works
When we get to you, we check the joints match what you told us. If we find something unexpected, we talk it through with you first. Most jobs then take a few hours, depending on how many layers have to come out. In a London area like Mildmay, the main things to plan are parking and access: tell us about permits, visitor bays or off-street space, which floor we’re working on and whether there’s a lift.
- Surrounding tiles, trays and frames are protected first.
- Every layer of failed sealant is stripped out.
- 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
- Mention if the joints have been sealed before
- Where the joints are inside, avoid wetting them before we arrive
- Mention any tricky access
Ask for a quote
Asking for a quote is easy: let us know the job and the location. A few photos by email make the job easier to understand.
Related advice
Remedial sealant for homes and businesses in Mildmay
Getting old sealant out properly is slow, careful work. We cut out every layer, clear the residue and degrease the surfaces, without scratching tiles, trays or frames. Only then can new sealant bond. We work on expansion joints, leaking tray & enclosure joints and shrunken worktop sealant, and people most often call us about floor or wall movement joints that have failed and worktop sealant that has shrunk and split.
Much of London’s older housing is Victorian and Edwardian terraces, many of them now split into flats, with bathrooms fitted into whatever space was available. Small, steamy rooms are where mould gets into sealant and grout fastest.
Each job carries a 12-month guarantee, whatever its size.
- Where
- Mildmay (N1, N16, E8)
- Region
- Greater London
- Guarantee
- One year on every job
- Quote
- A clear quote up front
- Call
- 0345 464 0079
- Page updated
- 26 October 2026
When something else is needed
To be straight with you, there are a few things sealant won’t fix:
- Movement from fittings that are not supported
- Cracks in the fitting rather than the joint
- Water damage behind tiles that needs a tiler
If in doubt, ring 0345 464 0079 or drop us an email and we will say what we think before booking.
Where we work in Mildmay
- Mouldy bath & shower sealant
- Leaking tray & enclosure joints
- Botched or over-sealed joints
- Expansion joints
- Failed movement joints
- Shrunken worktop sealant
Why it’s worth doing now in Mildmay
Adding more sealant is the usual quick fix, and it rarely works. It can’t bond to what’s underneath, leaving the leak in place and one more layer to cut out later. In London conversions, one flat’s bathroom is often above another flat’s ceiling, and a slow leak from a failed seal can end up in the flat below. Dealing with it early is far simpler.
Every job is a little different, so each one gets its own quote. Size, access and the product the joint needs all make a difference, and we will explain the quote if you ask.
Why us?
- Anti-fungal silicone where joints get wet
- Rated 4.9 stars on Google
- Arbo and Everbuild products
- More than 20 years in sealant work
Take a look at our cost guide or what customers say.
For landlords and businesses
Hotels need rooms back in use, so the work can be planned room by room. Hotel work is part of what we do, alongside homes and businesses.
For anyone letting property in or around Mildmay, jobs at different addresses can go on one quote. Send us the addresses and the work at each.
How the job changes 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 before backing and resealing.
Movement & expansion joints
Joints filled with mortar, grout or rigid filler can’t move. We rake that out where it can be removed and seal with a flexible product.
Questions from Mildmay
Can you help a landlord with a rental near Dalston Kingsland station?
Yes. We work for landlords and letting agents as well as homeowners. Just call 0345 464 0079 or drop us an email with the address and what needs doing, and we’ll send you a clear quote.
Do you take on hotel work around Mildmay?
Yes, hospitality work, including hotels, is part of what we do. Jobs can be programmed room by room, with out-of-hours working possible to arrange.
Can you remove old sealant without damaging the bath?
Yes. We take our time over removal, particularly on softer surfaces like acrylic.
When is the sealant fully cured?
Cure times vary by product and the conditions. Before we leave, we will tell you the cure time.
Is it messy?
Very little: the area around the joints is protected first, and we clear up the old sealant and our materials before we leave.
How long will it take to strip and reseal the joint?
Longer than a simple reseal, because every layer has to come out. For most joints, it’s a few hours.
Where are you based?
We work from Crawley. We cover Mildmay and the rest of Greater London, along with the rest of our area.
Do you offer different sealant colours?
In most cases you can choose. We’ll tell you which colours the right product comes in and agree one before we start.
How we quote for remedial sealant
The price is agreed before any work begins. It takes into account:
- How many areas need sealing
- Which sealant suits the joint
- Whether there’s mould to deal with
- Access and height
There are no prices on our website, because the cost depends so much on the job itself. Call for a quick quote.
Asking for a quote
Photos by email are helpful but not essential. Try to tell us:
- Pictures of the joints, sent by email
- Where the property is
- Access, such as stairs, a lift or height
- Roughly how big the job is
We do not publish a price list, because every job is different. Instead, your job gets its own clear quote. To arrange one, phone 0345 464 0079 or email us.
Towns and villages near Mildmay
Other services in Mildmay
Keeping the joints in good condition
After the cure time, these simple habits help:
- Keep movement joints clear of mortar and paint
- Never seal over old silicone
- Check trays and worktops don’t move
- Don’t wait for a small gap to become a leak
Keep the room ventilated: use the extractor or open a window after showering.
Mould trapped under over-sealed joints spreads unseen. By the time it shows through, the joint is well past saving.
Bathrooms and kitchens in Mildmay
London has hard water, so limescale builds up on sealant, grout and fittings. In a London flat, water from a failed bath or shower seal can reach the neighbours below, which is why it’s worth fixing early.
For site and facilities teams at buildings such as Newington Green Primary School, its toilets, changing areas and kitchens need their sealant renewed like any other building’s. For an older house near a landmark such as Church of St Jude and St Paul, timber floors under older bathrooms flex, so joints need a sealant that moves with them. Rented homes near Dalston Kingsland station change hands often, and a joint that keeps failing is best fixed properly while the property is empty.
Mildmay is about 1 mile north of Hoxton, in Greater London. Jobs in Mildmay get the same care as everywhere else we work: old sealant removed completely, careful preparation and a one-year guarantee. Our area takes in 764 places across Greater London, from the larger towns to small villages.
Jobs for remedial sealant in N1, N16 and E8 works the same way as everywhere else we cover. That includes homes and businesses on Dove Road, Essex Road and Burma Road. With the A1199 close by, Mildmay is simple for us to get to for remedial sealant. We also cover Newington Green (1 mile north), De Beauvoir Town (1 mile south), Canonbury (1 mile south-west), Kingsland (1 mile south-east) and Highbury (1 mile west). Within a short drive, we also cover London (3 miles south), City of Westminster (4 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 Mildmay
Around Mildmay, our work takes us to homes and buildings near City of London Academy Highbury Grove, Highbury Fields and Army and Navy pub and the streets around them. Mildmay has its own railway station: Dalston Kingsland station. Other landmarks nearby include Clowns Gallery-Museum (0.6 miles south-east) and Hackney Walk (1.5 miles east). Open spaces near Mildmay include Gillespie Park and Ludgate Hill.