Greater London · England
Remedial sealant & repairs in Merton, Greater London
Professional remedial sealant in and around Merton, with every bit of old sealant taken out first and a one-year guarantee.
- A shower that leaks however often it’s resealed
- Mould trapped under a layer of silicone
- Sealant peeling off a dusty or damp surface
Remedial sealant in Merton, done properly
If a joint fails again and again, something is causing it. Movement, the wrong product or a leak from somewhere else will defeat even a perfect bead. We look for the cause before we reseal. We work on leaking tray & enclosure joints, botched or over-sealed joints and failed movement joints, and common reasons people get in touch are movement joints that have split or pulled away and kitchen joints letting water behind the worktop.
London homes include a lot of flats, conversions and mansion blocks, and many bathrooms sit right above someone else’s ceiling. In Merton, that’s a good reason to put tired sealant and grout right early.
You are covered for a year from the day we finish. If there’s a problem with it, please phone 0345 464 0079 or send us an email.
- Where
- Merton (SW19)
- Region
- Greater London
- Cover
- A year, on every job
- Price
- A clear quote up front
- Phone
- 0345 464 0079
- Updated
- 26 October 2026
Surface by surface
Worktops & kitchens
Kitchen joints often have grease and cleaning residue deep in them, so we spend extra time cleaning.
Movement & expansion joints
Some movement joints have been filled with mortar or grout. Where it can be raked out, we replace it with flexible sealant.
Bathrooms and kitchens in Merton
In a London flat, water from a failed bath or shower seal can reach the neighbours below, so tired sealant is best dealt with early. London’s water is hard, so limescale builds up on sealant, grout and fittings, and it has to be cleaned off before new sealant goes in.
Merton is in London, so parking needs planning: let us know about parking bays, permits or a driveway. For site and facilities teams at buildings such as Merton Abbey Primary School, its toilets, changing areas and kitchens need their sealant renewed like any other building’s. If you let a flat or house near Haydons Road station, botched sealant from a previous quick fix is easier to strip out between tenants.
Merton is about 1 mile south-east of Wimbledon, in Greater London. We provide remedial sealant to householders, landlords and businesses in Merton and the surrounding area. Merton is one of 764 towns and villages in Greater London where we work for remedial sealant. Our London page covers work nearby, about 7 miles away.
We work across the SW19 postcode area for remedial sealant. If you need remedial sealant at a property on High Path, Pincott Road and Hayward Close or anywhere close by, our applicators can take on the job. With the A24 close by, Merton is easy for our applicators to reach. Nearby, we also carry out remedial sealant in Merton Abbey (1 mile east), South Wimbledon (1 mile north-west), Colliers Wood (1 mile east), Tooting Bec (1 mile north-east) and Summerstown (1 mile north). Further out, we also cover London (7 miles north-east), City of Westminster (7 miles north), Marylebone (7 miles north), Kensington (6 miles north), St Pancras (8 miles north) and Shoreditch (9 miles north-east).
Near you in Merton
Typical jobs here are in homes near The Nelson Arms, Wimbledon School of Art and Wandle Park. Merton’s nearest station is Haydons Road station, roughly 0.8 miles north. Other landmarks nearby include Southside Wandsworth (2.8 miles north) and St George's Hospital (1.1 miles north-east). The countryside around Merton includes Henman Hill and Merton Park Green Walks.
Work for landlords, hotels and businesses
We also work for property managers and facilities teams in Merton and across Greater London. We can quote a run of properties together, and we’re fully insured for the work.
Failed sealant is one of the commonest items on a check-out report, and it’s easy to sort out between tenants. Several properties can be quoted together.
The process
When we get to you, 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 a typical bath or shower, longer where several layers have been applied. Many London jobs are in flats, so we come ready for stairs, narrow hallways and shared entrances. Mention any building rules, key holders or managing agents when you book.
- 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.
- Where the joint moves, backing and a flexible sealant suited to the movement go in.
- We tool the joint and tell you about anything else that needs attention.
Before we arrive
- Mention any sign-in or site rules at work premises
- Keep children and pets away from the work area
- Tell us about access, such as stairs, a lift or high-level joints
Get a quote
Every job is quoted individually, so start by telling us what you need. Simply ring 0345 464 0079 or drop us an email and describe the job and send photos if you have them.
Read more
How we quote for remedial sealant
Call for a quick quote. The main things that affect it are:
- How many rooms, windows or areas are involved
- Whether there’s mould to deal with
- When we can work, for business premises
- Whether the work is at height
No two jobs are quite the same, so each one gets its own quote. Size, access and the product the joint needs all play a part, and we’ll explain the quote if you ask.
Helping us quote
When you contact us, it’s useful to know:
- Access, such as stairs, a lift or height
- What’s wrong with the joints now
- The address or postcode of the job
- Whether it’s a home or a business
For a quote, phone 0345 464 0079 or email us with the location and a short description of the problem. We will give you a clear quote before any work starts.
Your questions about remedial sealant in Merton
Can parking be tricky for a visit in Merton?
It can be, so it helps to tell us about permits, visitor bays or off-street space when you book. The visit is then planned around what’s available.
I let a flat near Haydons Road station. Can you help?
Yes, rental work is part of what we do. Just call 0345 464 0079 or send us an email and tell us about the property, and we will give you a clear price.
Do you come to Merton?
Yes. From our base in Crawley, we cover South East England, London and all of Scotland.
Do you fix expansion and movement joints?
Yes. If a joint has been filled with mortar or rigid filler, we rake it out where possible, then the joint is sealed properly.
How long will it take to strip and reseal the joint?
It takes a few hours for a typical bath or shower, longer where several layers have been applied. You’ll know the timing when we quote.
Can I do it myself?
For a simple, easy-to-reach joint, a careful DIYer can do a reasonable job. The usual mistakes are sealing over old sealant, sealing a damp joint and using too much.
Can you match the sealant colour?
We’ll suggest a colour to suit the surroundings, from white and clear to greys and other shades. The product needed can limit the range.
Which products do you use?
Each joint gets the product that suits it. Movement, water and weather all affect the choice, and we will tell you what we are using.
Aftercare tips
Joint life depends on how it’s used and looked after. We suggest:
- Get the cause of a repeat leak found before resealing
- Use a soft cloth, not a scourer, on silicone
- Have loose fittings fixed before resealing
- Look for stains below bathrooms now and then
Give the new sealant its full cure time: normally around 24 hours, or as long as we advise.
Leaks through failed sealant grow over time. Each use pushes more water behind the bead, into whatever is behind or below. Early action keeps it to a sealant job.
DIY versus a professional finish
If you’ve already had a go yourself, that’s fine. We remove it and do the joint properly.
If you are set on DIY, put the effort into 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.
Leave it or put it right?
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 a London flat, a failed joint rarely stays your problem alone: water from a shower or window joint can reach the flat below, and gaps in fire-stopping matter to everyone in the building.
Homes and businesses are quoted the same way: how much there is to do, how we reach it and what it needs. Ask us for a quote and we’ll go through it with you.
Why Merton clients choose us
- An ARBOMaster approved applicator
- Anti-fungal silicone where joints get wet
- A 12-month guarantee on all work
- We agree the colour with you first