Greater London · England
Remedial Sealant in Swiss Cottage
Removing failed, mouldy or leaking sealant and putting it right for homes and businesses in Swiss Cottage and across Greater London. Fully insured, ARBOMaster approved and guaranteed for a year.
- Mould trapped under a layer of silicone
- A second bead peeling off the first
- Products that weren’t meant for the joint
Landlords, agents and businesses in Swiss Cottage
A neglected joint can let water reach the structure, which is a bigger problem in a rented property. Keeping joints in good order is simple maintenance that we can handle for you.
Businesses can book us for washrooms, kitchens, offices and more. For commercial premises, we can talk through working times when we quote.
Remedial sealant in Swiss Cottage
With more than 20 years’ experience, our applicators have seen most of the ways sealant can fail. We are fully insured ARBOMaster approved applicators, and remedial work carries our one-year guarantee. We work on shrunken worktop sealant, failed movement joints and leaking tray & enclosure joints, and common reasons people get in touch are floor or wall movement joints that have failed and beads that never stuck properly.
Hard London water leaves limescale on sealant, grout and taps alike. For a bathroom or kitchen in Swiss Cottage, getting the joints right keeps water where it belongs and the room looking clean.
The work is covered for a year after we finish. If there’s a problem with it, please ring 0345 464 0079 or drop us an email.
- Place
- Swiss Cottage (NW3, NW8, NW6)
- Wider area
- Greater London
- Guarantee
- A year, on every job
- Price
- A clear price before we start
- Call
- 0345 464 0079
- Last updated
- 26 October 2026
What affects the cost of remedial sealant
Some jobs are bigger than they look, and some smaller. What affects the quote:
- The type of sealant required
- The amount of work
- Access and height
- When we can work, for business premises
Homes and businesses are quoted the same way: the amount of work, how we reach it and what it needs, along with when we can work on site. Ask us for a quote and we will explain what it covers.
Asking for a quote
Photos by email are helpful but not essential. Try to tell us:
- If it’s domestic, commercial or a hotel
- Whether it has been sealed before
- What the problem is, such as mould, gaps, leaks or cracking
- Where the job is, and your postcode
Need a quote? Please phone 0345 464 0079 or email us and tell us about the job. You’ll know what we plan to do, and what it will cost, before any work begins.
What the job involves on each surface
Windows & doors
Wrong-coloured or messy mastic can be replaced for appearance too, matched to the frame colour.
Movement & expansion joints
Some movement joints have been filled with mortar or grout. We rake that out where it can be removed and seal with a flexible product.
Your questions about remedial sealant in Swiss Cottage
Could a tired shower seal in my Swiss Cottage 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. Replacing the sealant and grout before that happens is much less trouble than repairing a neighbour’s ceiling.
Do you work for landlords with property near South Hampstead station?
Yes, landlords and agents are among the people we work for. You can call 0345 464 0079 or drop us an email with the details for a clear quote.
Can you quote for more than one area?
Yes, and it often makes sense. Combining jobs makes good use of the visit, so mention them when you ask for a quote.
Should I try DIY first?
For a simple, easy-to-reach joint, a careful DIYer can do a reasonable job. Most DIY failures come from sealing over old material, wet joints or too much sealant.
Do the sealants smell?
Sometimes, a little. Any smell clears as the sealant cures, and ventilation helps.
How do I get a quote for remedial sealant in Swiss Cottage?
It depends on the job, so we quote each one individually. To get one, call 0345 464 0079 or drop us an email and tell us what needs doing and where.
Can you remove old sealant without damaging the bath?
Yes. Careful removal is most of a remedial job, especially on acrylic, enamel and uPVC.
What do you need from me for a quote?
A short description and the location, with pictures by email if possible. If we need more, we will ask.
Keeping the joints in good condition
Joint life depends on how it’s used and looked after. We suggest:
- Have loose fittings fixed before resealing
- Keep an eye on the ceiling below the bathroom
- Never fill a movement joint with mortar or grout
- Don’t wait for a small gap to become a leak
Go easy on the new sealant: a mild cleaner and a soft cloth, with no blades or scourers.
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 sealant or a professional job?
If you’ve already had a go yourself, that is fine. We remove it and do the joint properly.
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.
Swiss Cottage homes and their sealant
London’s water is hard, which leaves limescale on sealant, grout and taps. Swiss Cottage 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.
Swiss Cottage is in London, so parking needs planning: let us know about parking bays, permits or a driveway. For landlords with property near South Hampstead station, botched sealant from a previous quick fix is easier to strip out between tenants. In the older streets around Church of All Souls, bathrooms in older houses have often been refitted more than once, with sealant laid over sealant.
Swiss Cottage is about 1 mile south of Hampstead, in Greater London. Whether you are in the middle of Swiss Cottage or further out, remedial sealant is available for homes and businesses alike, from flats and houses to offices and hotels. We cover 764 towns and villages across Greater London.
Postcode districts we cover here for remedial sealant: NW3, NW8 and NW6. That includes homes and businesses on Avenue Road, Acacia Road and Harben Road and the roads around them. Other places close to Swiss Cottage include South Hampstead (1 mile north), St John's Wood (1 mile south), Haverstock (1 mile east), Belsize Park (1 mile east) and Primrose Hill (1 mile east). Larger places within reach include London (4 miles south-east), Kensington (3 miles south-west), St Pancras (3 miles south-east), Shoreditch (4 miles east), Walthamstow (7 miles north-east) and Hoxton (4 miles east).
What’s near Swiss Cottage
We work in homes and buildings around Cafe Med pub, Holy Trinity CofE Primary School and Primrose Hill and the streets around them. Other local landmarks include Cecil Sharp House (1.1 miles east) and St. Mary's Town and Country School (under half a mile north-east). There’s a railway station in Swiss Cottage itself: South Hampstead station. Other landmarks nearby include Montfichet's Tower (3.7 miles south-east) and Isokon Gallery (0.8 miles north-east). The countryside around Swiss Cottage includes The Long Water and Primrose Hill.
Also near Swiss Cottage
Other services in Swiss Cottage
What sealant work can’t fix
Before you book, it’s worth knowing the limits:
- Plumbing leaks behind walls or under trays
- Failed tanking or loose tiles behind the sealant
- Cracks in the fitting rather than the joint
If you are not sure, just phone 0345 464 0079 or send us an email and we’ll give you a straight answer.
Surfaces we seal
- Leaking tray & enclosure joints
- Failed movement joints
- Mouldy bath & shower sealant
- Expansion joints
- Botched or over-sealed joints
- Shrunken worktop sealant
What we do, step by step
A visit follows a simple pattern: we check the joints, protect the area around them, carry out the job and tidy away. It generally takes a few hours for most joints, depending on how much old sealant has to come out. For a job in Swiss Cottage, parking and access are the things to plan: let us know about parking, the floor we’ll be working on and any lift or shared entrance.
- First we work out whether the problem is the sealant, movement or a leak.
- Old beads and residue are removed down to clean surfaces.
- We treat any mould and dry the joint thoroughly.
- We reseal with a product suited to the joint, backed where needed.
- The joint is tooled and you are told about anything else we found.
How to prepare
- Move anything stored near the joints
- Let us know about parking restrictions
- Let us know if you’ve seen damp or leaks
How to get a quote
We quote each job on its own, so the first step is telling us about yours. Simply phone 0345 464 0079 or drop us an email and describe the job and send pictures if you have them.