Greater London · England
Remedial Sealant in Cricklewood
Problem with your failed sealant joints in Cricklewood? We cut out the old, prepare the joints and apply the right sealant.
- Torn expansion joints
- Black mould underneath the bead
- Sealant peeling off a dusty or damp surface
Aftercare tips
Once the sealant has cured, a few habits help it last:
- Check ceilings under showers for marks
- Air the bathroom so the sealant can dry
- Never seal over old silicone
- Keep movement joints clear of mortar and paint
If the joint ever needs renewing, have it cut out, not sealed over. New silicone doesn’t bond to old, so the old bead should always come out first.
A failing joint rarely gets better on its own. Every shower or downpour sends more water through, into floors, walls or ceilings. Sorting it early limits the damage.
Remedial sealant for homes and businesses in Cricklewood
A joint that keeps letting you down needs more than another bead. Send photos when you ring 0345 464 0079 or drop us an email. We’re often asked to deal with products that weren’t meant for the joint and floor or wall movement joints that have failed, on mouldy bath & shower sealant, botched or over-sealed joints and expansion joints.
Across London, a large share of homes are flats, conversions or mansion blocks, so a bathroom is often directly above a neighbour’s ceiling. That makes worn sealant and cracked grout in Cricklewood more than a cosmetic job.
The work is guaranteed for twelve months. If there’s a problem with our work within the year, let us know and we will sort it.
- Location
- Cricklewood (NW2, NW6, NW10)
- Wider area
- Greater London
- Cover
- One year on every job
- Quotes
- Quoted before any work starts
- Telephone
- 0345 464 0079
- Last updated
- 26 October 2026
What happens on the day
Once we are on site, we check the joints match what you told us. If anything is different, we explain it before carrying on. Most jobs then take a few hours, depending on how many layers have to come out. In Cricklewood, as in most of London, parking needs a little planning. It helps if you can point us to a visitor permit or a bay close to the door.
- The failure is looked at first, so we know whether it’s sealant, movement or water from elsewhere.
- Each layer is cut out and the residue cleaned off.
- We treat any mould and dry the joint thoroughly.
- We reseal with a product suited to the joint, backed where needed.
- We finish neatly and point out anything that needs another trade.
Preparing for the visit
- Mention any tricky access
- On commercial sites, let us know about site rules
- Keep pets and children clear of the area while we work
Getting a quote
We do not publish a price list. Instead, your job gets its own clear quote. To get started, call 0345 464 0079 or drop us an email.
Read more
Different surfaces, different methods
Windows & doors
Frames resealed over the top end up with hard, layered mastic. We remove it all and clean back to sound surfaces.
Over-sealed & botched joints
A thick bead smeared across tiles often hides mould or gaps. Taking it back shows what’s underneath.
Landlord and commercial work in Cricklewood
Water getting past a failed joint can damage the building, which is a bigger problem in a rented property. Keeping joints in good order is simple maintenance that we can handle for you.
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 go on one quote.
Should I try it myself first?
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.
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 fails, we can still redo it.
Quotes for remedial sealant in Cricklewood
Your quote is based on your job. We look at:
- Working hours on commercial sites
- How easy the joints are to reach
- Whether old sealant or filler has to be cut out
- Mould in or behind the old joints
Combining jobs into one visit is usually more efficient than separate visits, so tell us about everything that needs sealing. You will get one clear quote for the whole job.
What we need to know
Photos by email are helpful but not essential. Try to tell us:
- If someone has resealed it before
- Where the job is, and your postcode
- What’s wrong with the joints now
- How we’d reach the joints
Need a quote? Please ring 0345 464 0079 or email us and tell us about the job. We’ll explain what we’d do and send you a clear quote before work begins.
Also near Cricklewood
What else we do in Cricklewood
Cricklewood: your questions answered
Could a tired shower seal in my Cricklewood flat affect the neighbours below?
Yes, and the first sign is often a stain on the ceiling below. A proper reseal before the leak starts is the easy fix.
Can parking be tricky for a visit in Cricklewood?
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.
Where are you based?
We work from Crawley. Our applicators cover Cricklewood, along with the rest of our area.
How long should I leave it?
Different products cure at different speeds, so please follow the time we give you when we finish.
I rent my home. Can I book you?
Yes, but check with your landlord or agent first. Many landlords are glad to have it sorted.
Can you quote for more than one area?
Of course. Doing several areas at once is normally more efficient.
Will it make a mess?
No. The area is protected while we work and cleaned up afterwards.
Will there be a smell?
Possibly a little. It fades as the sealant cures.
Why it’s worth doing now in Cricklewood
A failed seal rarely means a new bathroom. If the bath, tray and tiles are sound, remedial resealing normally puts it right. Where something else has failed, you’ll hear it from us. In a flat in Cricklewood, failed sealant seldom stays inside your own four walls: water can reach the neighbours below, and gaps in fire-rated joints affect the whole building.
What it costs depends on how much there is to do, how much old material has to come out and how easy the joints are to reach. We give a clear quote before work begins, so you know where you stand.
Why choose Mr Mastic in Cricklewood
- Anti-fungal sanitary silicone in wet areas
- You choose the colour before work begins
- ARBOMaster approved applicator
- White, clear, grey or coloured to suit, where the product allows
Take a look at what affects the cost or what customers say.
Remedial sealant around Cricklewood
London has a lot of flats and conversions, and a failed shower or bath seal in one can show up on the ceiling below, so tired sealant is best dealt with early. London has hard water, so limescale builds up on sealant, grout and fittings.
If you let a flat or house near Cricklewood station, botched sealant from a previous quick fix is easier to strip out between tenants. Managing a site like Anson Primary School? Then its toilets, changing areas and kitchens need their sealant renewed like any other building’s. As a London address, Cricklewood can be tricky for parking: tell us about permits, visitor bays or off-street space when you book.
Cricklewood is about 1 mile north-west of Kilburn, in Greater London. We provide remedial sealant to homeowners, landlords and businesses in Cricklewood and the surrounding area, as part of our work across Greater London. Our area takes in 764 places across Greater London. For nearby work, see our London page.
We cover every part of the NW2, NW6 and NW10 postcode area for remedial sealant and the streets around it. That includes homes and businesses on Ivy Road, Walm Lane and Dean Road. You will find Cricklewood on the A407, so it’s easy for us to get to. Close by, we work in Brondesbury (1 mile south-east), Willesden (1 mile south-west), Dollis Hill (1 mile north-west), Willesden Green (1 mile south-west) and Neasden (1 mile west). Further out, we also cover London (7 miles south-east), City of Westminster (4 miles south-east), Marylebone (4 miles south-east), Kensington (4 miles south), St Pancras (5 miles south-east) and Shoreditch (6 miles east).
Landmarks near Cricklewood
Locally, jobs take us to homes and businesses close to Hampstead School, The Crown Public House and Gladstone Park. Cricklewood has its own railway station: Cricklewood station. Nearby you will also find St Andrew's Hospital (0.8 miles north-west) and Brent Museum and Archives (0.7 miles south-west). Green spaces nearby include Parliament Hill and Westbere Copse.