Greater London · England
Remedial Sealant in Leamouth
Professional remedial sealant in and around Leamouth, with every bit of old sealant taken out first and a 12-month guarantee.
- Beads that never stuck properly
- Mould trapped under a layer of silicone
- Gaps opening along the back of the worktop
Why it’s worth doing now in Leamouth
Hidden water does the most damage: soaked floorboards, ceiling stains below and blown plaster. By comparison, sorting the joint is quick. Damp from a failed joint spreads quietly in older London brickwork and timber, and by the time it shows on a wall or ceiling in Leamouth, the repair is bigger than the sealant job would have been.
A failed joint rarely gets cheaper to fix by waiting. If you are not sure whether it needs doing, phone 0345 464 0079 or drop us an email and we will give you an honest view and a quote.
Why us?
- Quality sealants from Arbo and Everbuild
- A choice of colours where the product allows
- We never seal over old sealant
- 12-month guarantee on every job
Take a look at our cost guide and customer reviews.
Remedial sealant in Leamouth
Movement and expansion joints fail when the sealant cannot stretch. We cut out the failed sealant and set the depth with backing, before resealing with a flexible product suited to the movement. Typical jobs include mould trapped under a layer of silicone and products that weren’t meant for the joint, on mouldy bath & shower sealant, failed movement joints and botched or over-sealed joints.
Across London, a large share of homes are flats, conversions or mansion blocks, and many bathrooms sit right above someone else’s ceiling. That makes worn sealant and cracked grout in Leamouth more than a cosmetic job.
A one-year guarantee comes as standard, so you’re not left on your own once the job is done.
- Location
- Leamouth (E16, E14, SE10)
- Wider area
- Greater London
- Guarantee
- 12 months on all our work
- Price
- Quoted before any work starts
- Telephone
- 0345 464 0079
- Last updated
- 26 October 2026
DIY versus a professional finish
Not every job suits DIY: high-level joints, fire-rated gaps, external movement joints and big jobs need the right product, the right access and the right method.
The difference is mostly in the preparation and the product. We take joints back to clean, dry surfaces, and the sealant is chosen for how the joint moves and where it is, then guaranteed for a year.
Landlord and commercial work in Leamouth
A neglected joint can let water reach the structure, which matters even more when someone else lives there. Keeping joints in good order is simple maintenance.
Landlords and letting agents in Leamouth can book us as well as homeowners. Sealant work between tenants is a simple way to keep a property in good order before the next move-in.
Places near Leamouth
Other services in Leamouth
What happens on the day
A visit follows a simple pattern: we check the joints, mask and protect the surrounding surfaces, carry out the job and clear up. Most jobs take a few hours, depending on how many layers have to come out. In a London area like Leamouth, 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 find out how and where the joint has failed.
- All the old sealant comes out, including any layers underneath.
- Next, any mould is treated and the joint dried.
- Where the joint moves, backing and a flexible sealant suited to the movement go in.
- The new joint is tooled neatly and we explain anything else we found.
Before we arrive
- Where the joints are inside, avoid wetting them before we arrive
- Mention any leaks or damp you’ve noticed
- Plan for the work area to be out of bounds to pets and children
How to get a quote
We don’t publish a price list, because every job is different. Instead, we give you a clear quote for your job. To get started, call 0345 464 0079 or drop us an email.
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Leamouth questions
Could a tired shower seal in my Leamouth flat affect the neighbours 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.
Is parking a problem for a job in Leamouth?
It can be, so it helps to tell us about permits, visitor bays or off-street space when you book. That way the visit can be planned around it.
Can you remove sealant that’s been put over old sealant?
Yes. We cut out all the layers and clean off the film, before resealing with a single bead.
Does remedial work come with a guarantee?
Yes, for 12 months. If we have pointed out another problem, getting it fixed helps the new joint last.
Are you fully insured?
Yes, we are fully insured for every job we do.
Can you match the sealant colour?
We’ll suggest a colour to suit the surroundings. The product needed can limit the range.
Can you strip sealant from an acrylic tray safely?
Yes. We cut and lift the old sealant with tools suited to the surface, then clean off the residue. Any existing damage is pointed out before work begins.
How long does the work take?
Longer than a simple reseal, because every layer has to come out. For most joints, it’s a few hours.
What affects the cost of remedial sealant
Some jobs are bigger than they look, and some smaller. The main factors:
- Whether old sealant or filler has to be cut out
- Whether there’s mould to deal with
- How easy the joints are to reach
- The type of sealant required
We don’t show prices on the website, because each job is priced on what it involves. For a quick quote, please phone 0345 464 0079 or send us an email.
Helping us quote
The more you tell us, the more accurate the quote. When you get in contact, it helps to mention:
- The type of property
- A few pictures by email, if you can
- Where the property is
- What the problem is, such as mould, gaps, leaks or cracking
Want a quote for remedial sealant? Please ring 0345 464 0079 or send us an email and tell us about the job. We will explain what we’d do and give you a clear price before we start.
Remedial sealant in Leamouth: local notes
London has hard water, so limescale builds up on sealant, grout and fittings, and it has to be cleaned off before new sealant goes in. Leamouth 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.
For site and facilities teams at buildings such as St Luke's Primary School, 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. As a London address, Leamouth can be tricky for parking: tell us about permits, visitor bays or off-street space when you book.
Leamouth is about 1 mile west of Canning Town, in Greater London. Across the E16 area, we cover remedial sealant for homes and businesses. 764 places in Greater London are on our list, large and small.
Our applicators cover all of E16, E14 and SE10 for remedial sealant. If you need remedial sealant at a property on Ives Road, Nutmeg Lane and Abbott Road or anywhere close by, our applicators can take on the job. Leamouth sits on or near the A1262 and A1263. If you are just outside Leamouth, we cover Limmo Peninsula (1 mile east), Blackwall (1 mile south-west), Coldharbour (1 mile south-west), Canning Town (1 mile east) and West Silvertown (1 mile south-east). Larger places within reach include London (4 miles west), City of Westminster (7 miles west), Marylebone (7 miles west), Kensington (9 miles west), St Pancras (5 miles west) and Shoreditch (4 miles west).
Near you in Leamouth
We work in homes and buildings around Rokeby School, Tower Hamlets College and Bridge House and the streets around them. The closest station to Leamouth is Custom House station, about 0.9 miles east. A little further out are Stratford Centre (2.2 miles north) and London Gas Museum (0.9 miles north-west). Green spaces nearby include Lavender Pond and Hollow Pond.
Do you need remedial sealant in Leamouth?
One of the commonest remedial jobs is sealant on top of sealant. New silicone can’t stick to the old bead, so the new layer peels, and damp and mould settle between them.
It’s worth asking for a quote if you see:
- Movement joints that have split or pulled away
- Wide, uneven beads that look worse than the old ones
- Sealant that came away because the surface wasn’t prepared
- Kitchen joints letting water behind the worktop
Homes close to Church of St Luke include some older properties, and bathrooms in older houses have often been refitted more than once, with sealant laid over sealant.
What your quote should include
- Whether VAT is included
- The length of the guarantee
- Which sealant they’ll use, and why
- What the cure time is
Surface by surface
Movement & expansion joints
A movement joint must be able to stretch. Failed sealant is cut out, backing rod or tape is fitted and the joint resealed.
Mouldy bath & shower sealant
Mould that has grown into silicone does not clean out for good. The sealant is cut out completely, the joint treated with a mould remover and dried ahead of a new anti-fungal bead.