Greater London · England
Remedial sealant & repairs in West Dulwich, Greater London
Remedial sealant in West Dulwich from a team with over 20 years’ experience. Rated 4.9 on Google from 180+ five-star reviews.
- Gaps opening along the back of the worktop
- Mould trapped under a layer of silicone
- Wide, uneven beads that look worse than the old ones
Remedial sealant for homes and businesses in West Dulwich
Movement and expansion joints fail when the sealant can’t stretch. The old sealant comes out and backing goes in to control the depth, before resealing with a flexible product suited to the movement. We work on failed movement joints, mouldy bath & shower sealant and expansion joints, and people most often call us about sealant that came away because the surface wasn’t prepared and wide, uneven beads that look worse than the old ones.
Hard London water leaves limescale on sealant, grout and taps alike. For a bathroom or kitchen in West Dulwich, getting the joints right keeps water where it belongs and the room looking clean.
All our work is covered by our one-year guarantee.
- Place
- West Dulwich (SE21, SE27, SE19)
- Wider area
- Greater London
- Cover
- 12 months on all our work
- Quote
- A clear price before we start
- Telephone
- 0345 464 0079
- Updated
- 26 October 2026
Different surfaces, different methods
Leaking trays & enclosures
If the tray is cracked, or the leak is from the valve or waste, sealant won’t fix it. We will tell you what we find.
Mouldy bath & shower sealant
Where mould keeps coming back, ventilation is usually part of the cause. Along with resealing, we’ll mention if the room needs better ventilation.
Nearby places to West Dulwich
What else we do in West Dulwich
Honest limits
We won’t take on work that won’t last, so these are the limits:
- A tray or bath that is cracked
- Failed tanking or loose tiles behind the sealant
- Sealant in an older building that needs testing for asbestos first
Not sure which it is? You can ring 0345 464 0079 or email us and we’ll tell you honestly.
Surfaces we seal
- Expansion joints
- Leaking tray & enclosure joints
- Failed movement joints
- Shrunken worktop sealant
- Mouldy bath & shower sealant
- Botched or over-sealed joints
Your questions about remedial sealant in West Dulwich
Can worn sealant in a flat in West Dulwich cause a leak downstairs?
Yes, it can. Water that gets past failed sealant or cracked grout can run under the bath or tray and show up on the ceiling below. It’s far simpler to replace tired sealant early than to deal with a neighbour’s ceiling.
Do you work for landlords with property near Sydenham Hill station?
Yes, rental work is part of what we do. Just ring 0345 464 0079 or send us an email and tell us about the property, and we’ll send you a clear quote.
Can you match the sealant colour?
In most cases you can choose. We’ll tell you which colours the right product comes in.
Do you do commercial work?
Yes. We’ve worked for hotels, offices and other businesses, and we are fully insured.
Are you ARBOMaster approved?
Yes. We’re ARBOMaster approved, the scheme for applicators of Arbo sealants.
What should I tell you?
Just the basics: where it is, what you’ve noticed and how we reach it. Then phone 0345 464 0079 or send us an email.
Do you cover West Dulwich?
Yes, we do. Our applicators work in West Dulwich, and the service is the same as everywhere else.
Can you strip sealant from an acrylic tray safely?
Yes. Careful removal is most of a remedial job, especially on acrylic, enamel and uPVC.
DIY versus a professional finish
If you do try it yourself, take your time over the preparation: remove every trace of old sealant, clean and dry the joint, and follow the product’s cure time. If it doesn’t work out, we can still put it right.
Too much sealant is as bad as too little. A thick, smeared bead looks untidy and does not move well, and getting the depth right matters as much as the look.
How the visit works
On the day, we start by going over the job with you, so there are no surprises. We protect the surfaces around the joints before any work begins. Most jobs take a few hours, depending on how many layers have to come out. For a job in West Dulwich, parking and access are the things to plan: tell us about permits, visitor bays or off-street space, which floor we’re working on and whether there’s a lift.
- We start by checking the joint for movement, leaks and the reason it failed.
- All the old sealant comes out, including any layers underneath.
- Next, any mould is treated and the joint dried.
- We use the right backing and sealant for any joint that moves.
- Finally we finish the joint and talk you through what we found.
Preparing for the visit
- Let us know about stairs, lifts or work at height
- Let us know about earlier repairs to the joints
- For business premises, tell us about site rules or sign-in
Getting a quote
Call for a quick quote, or email us if that is easier. Describe what needs sealing and we’ll talk you through the work.
Related advice
West Dulwich homes and their sealant
London has hard water, which leaves limescale on sealant, grout and taps. There are hotels and other places to stay in and around West Dulwich. Hotel bathrooms are part of our work as well as homes, and can be done room by room.
West Dulwich is in London, so parking needs planning: tell us about permits, visitor bays or off-street space when you book. Homes close to Church of St Stephen include some older properties, and older homes can move a little, which is hard on rigid grout and tired sealant.
West Dulwich is about 1 mile north-east of West Norwood, in Greater London. Every kind of property in West Dulwich is covered for remedial sealant, old or new, large or small. The work is guaranteed for a year. 764 places in Greater London are on our list.
Jobs for remedial sealant in SE21, SE27 and SE19 works the same way as everywhere else we cover. Local streets include Berry Lane, Clive Road and Myton Road, and we cover them all. Main roads around West Dulwich include the A2199, which makes travel easy. Nearby, we also carry out remedial sealant in Sydenham Hill (1 mile east), West Norwood (1 mile south-west), Gipsy Hill (1 mile south), Dulwich (1 mile north) and Upper Norwood (1 mile south). Larger places within reach include London (5 miles north), City of Westminster (6 miles north-west), Marylebone (6 miles north-west), Kensington (7 miles north-west), St Pancras (7 miles north) and Shoreditch (6 miles north).
Landmarks near West Dulwich
Around West Dulwich, our work takes us to homes and buildings near The Wood House, Dulwich Prep & Senior and Kingsdale Foundation School, among other places. There’s a railway station in West Dulwich itself: Sydenham Hill station. Well-known places in the area include British Vintage Wireless And Television Museum (under half a mile west) and St Christopher's Hospice (1.3 miles south-east). Not far away are Battersea Park Lake and Dulwich Upper Wood.
How to look after the new joints
How long the joints last depends on use and care. Here’s what we suggest:
- Have loose fittings fixed before resealing
- Act on a lifting corner straight away
- Never seal over old silicone
- Air the bathroom so the sealant can dry
If we have found a cause, such as a loose tray or a leaking waste, get it fixed, because the new sealant can’t hold back a problem underneath.
Leaks through failed sealant grow over time. Every shower or downpour sends more water through, into whatever is behind or below. Sorting it early limits the damage.
Work for landlords, hotels and businesses
Hotels need rooms back in use, so the work can be planned room by room. We’ve worked in hotels as well as homes and businesses.
Businesses can book us for washrooms, kitchens, offices and more. On commercial sites, working times can be discussed when we quote.
When to call us in West Dulwich
Joints that move need sealant that can stretch. A bath that flexes, a tray that rocks or a building joint that opens and closes will split a rigid or thin bead.
The most common problems we see are:
- Sealant peeling off a dusty or damp surface
- Caulk or the wrong sealant used in a wet area
- Mould trapped under a layer of silicone
- Thick, messy sealant smeared over tiles
If you let a flat or house near Sydenham Hill station, botched sealant from a previous quick fix is easier to strip out between tenants.
Questions to ask before booking
- Whether they seal over old material or remove it
- What insurance they hold
- What guarantee comes with the work
- How the surfaces are prepared before sealing