Greater London · England
Remedial sealant & repairs in New Southgate, Greater London
Remedial sealant for New Southgate, by sealant specialists with 20+ years’ experience. Rated 4.9 on Google from 180+ five-star reviews.
- Smears and lumps from a botched reseal
- Over-sealed joints coming away
- Leaks that keep coming back after resealing
About our remedial sealant in New Southgate
A joint that keeps letting you down needs more than another bead. It helps to have photos when you phone 0345 464 0079 or send us an email. We work on leaking tray & enclosure joints, botched or over-sealed joints and failed movement joints, and common reasons people get in touch are smears and lumps from a botched reseal and decorators’ caulk around a bath or shower.
In much of London, period terraces have been converted into flats over the years, with bathrooms fitted into whatever space was available. A compact bathroom that steams up every day is hard on silicone and grout, and homes in New Southgate are no different.
Big or small, it’s backed by our 12-month guarantee.
- Place
- New Southgate (N11, N10, N14)
- Wider area
- Greater London
- Cover
- 12 months on all our work
- Quotes
- A clear quote up front
- Telephone
- 0345 464 0079
- Last updated
- 26 October 2026
How the job changes by surface
Mouldy bath & shower sealant
Mould often spreads under the bead as well as through it. Once it’s all removed, the joint is treated.
Leaking trays & enclosures
Where the joints are the problem, every bead is stripped and resealed with anti-fungal sanitary silicone, including the screen profile and tray edges.
How the visit works
On the day, there’s very little for you to do. Show us the job and we’ll take it from there. The job generally takes a few hours for a typical bath or shower, longer where several layers have been applied from start to finish. For a job in New Southgate, parking and access are the things to plan: tell us about permits, visitor bays or off-street space, which floor we are 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.
Preparing for the visit
- Tell us about access, such as stairs, a lift or high-level joints
- Mention any sign-in or site rules at work premises
- Mention if the joints have been sealed before
Ask for a quote
There’s no standard price list, as no two jobs are quite the same. Instead, your job gets its own clear quote. To get started, call 0345 464 0079 or drop us an email.
Read more
DIY versus a professional finish
Some jobs are best left to a professional: high-level joints, fire-rated gaps, external movement joints and big jobs call for the right materials, safe access and experience.
What a professional job adds is preparation and the right 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.
Places near New Southgate
More services for New Southgate
New Southgate homes and their sealant
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. London’s water is hard, so limescale builds up on sealant, grout and fittings.
Schools such as St Paul's CofE Primary School N11 are buildings too, and its toilets, changing areas and kitchens need their sealant renewed like any other building’s. If you let a flat or house near New Southgate station, failed or mouldy sealant is worth putting right between tenancies, before it turns into a leak.
New Southgate is about 2 miles north-east of Finchley, in Greater London. Our applicators cover remedial sealant for homeowners, landlords and businesses in New Southgate and the surrounding area. Our area takes in 764 places across Greater London. We also work in London, about 8 miles from New Southgate.
Here we cover the N11, N10 and N14 postcode area for remedial sealant. We cover properties on High Road, Orion Road and Atlas Road. Main roads around New Southgate include the A1003 and A1110, which makes travel easy. Close by, we work in Friern Barnet (1 mile west), Arnos Grove (1 mile east), Bounds Green (1 mile south-east), Brunswick Park (1 mile north) and Southgate (1 mile north). Further out, we also cover London (8 miles south), City of Westminster (7 miles south), Marylebone (7 miles south), Kensington (8 miles south), St Pancras (6 miles south) and Shoreditch (7 miles south-east).
Near you in New Southgate
In New Southgate, that means homes and buildings near Friern Barnet School, Ming-Ai and The Ranelagh pub and the streets around them. Nearby too are O. R. Tambo Recreation Ground (0.9 miles south-east) and Francis Skaryna Belarusian Library and Museum (1.8 miles west). There’s a railway station in New Southgate itself: New Southgate station. A little further out are Grand Arcade (1.5 miles west) and Broomfield House Museum (1.1 miles east). Open spaces near New Southgate include Barfield Allotments Nature Park and Highgate Hill.
New Southgate: your questions answered
I live in a flat in New Southgate. Can a failed seal leak into the flat below?
Yes, and the first sign is often a stain on the ceiling below. Cutting out the old sealant and laying a new bead early stops it getting that far.
Do you work for hotels and guest houses in New Southgate?
Yes, hotels and guest houses are among the places we work. Rooms can be done a few at a time, so the building stays open.
Do you fix expansion and movement joints?
Yes. Backing sets the depth and stops the sealant sticking to the back.
What do you put in the joint?
We choose the sealant for the joint, not the other way round. Movement, water and weather all affect the choice, and we’ll tell you what we are using.
Do you hold any approvals?
Yes. We hold ARBOMaster approved applicator status.
I rent my home. Can I book you?
We can work for tenants, landlords or agents. Just make sure your landlord agrees.
Do you remove the old sealant?
Yes. Sealing over the old bead is the commonest cause of early failure, and it’s something we never do.
Are you insured?
Yes. We are fully insured, and we can confirm the details when we quote.
What happens if it’s left?
Hidden water does the most damage: wet floors, stained ceilings and swollen worktops. 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 New Southgate, the repair is bigger than the sealant job would have been.
Instead of a standard rate, we price the job in front of us: how many joints, what’s in them now and how we reach them. The price is agreed before we begin.
Why us?
- You choose the colour before work begins
- We leave the area clean and tidy
- Over 20 years’ experience
- Old sealant always removed completely
Read how sealant jobs are priced or our reviews.
Work for landlords, hotels and businesses
We also work for property managers and facilities teams in New Southgate and across Greater London. We can quote a run of properties together, and we are fully insured.
From a single let to a portfolio, you get the same standard of work: the old material taken out, careful preparation and a 12-month guarantee.
Common problems we fix in New Southgate
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.
Any of these means the joints need attention:
- Leaks that keep coming back after resealing
- Beads that never stuck properly
- Decorators’ caulk around a bath or shower
- Black mould underneath the bead
As a London address, New Southgate can be tricky for parking: tell us about permits, visitor bays or off-street space when you book.
What to look for in a quote
- Whether you can choose the colour
- Who turns up on the day
- How the joint is cleaned and prepared
- Whether they’re fully insured
Aftercare tips
After the cure time, these simple habits help:
- Never seal over old silicone
- Run the fan after every shower
- Use a soft cloth, not a scourer, on silicone
- Don’t point over movement joints
Leave the new joint to cure fully before it gets wet or moves: follow the cure time we give you.
Mould trapped under over-sealed joints spreads unseen. By the time it shows through, the joint is well past saving.