Greater London · England
Chinatown Glazing Silicone
Professional glazing silicone in and around Chinatown, with every bit of old sealant taken out first.
- Water escaping where a screen meets the wall
- Leaking glazing joints on a rooflight
- Water tracking down the inner face of the glass
Glazing silicone in Chinatown
Conservatory leaks often start at a sealant joint, where glass meets frame or frame meets wall. We trace the leak to the joint and reseal it and tell you plainly if the cause is something else. We work on rooflights, glass balustrade bases and conservatory frames, and people most often call us about new silicone smeared over old sealant and split or lifting silicone on glass.
Much of London’s older housing was built with timber sash windows, some still in place and some long since replaced. Whatever is in the opening now, the joint between frame and wall is what keeps the weather out, in Chinatown as anywhere.
A one-year guarantee comes with the work, just as it does everywhere we cover.
- Where
- Chinatown (W1F, W1D, W1T)
- Region
- Greater London
- Guarantee
- 12 months on all our work
- Quotes
- A clear price before work begins
- Phone
- 0345 464 0079
- Page updated
- 26 October 2026
Signs you need glazing silicone in Chinatown
Shower screen silicone gets wet every day. Mould gets into it and the edges begin to peel.
People usually contact us after spotting one of these:
- Mouldy sealant around glass panels
- Glazing silicone that has cracked or come away
- Failed sealant around rooflight glass
- Glass-to-glass joints that have split
For landlords with property near Tottenham Court Road station, glazing joints are worth checking at the end of a tenancy, before a small leak grows.
Comparing quotes
- What insurance they hold
- How the joint is cleaned and prepared
- Whether all the old sealant comes out first
- The length of the guarantee
Should I try it myself first?
If you do try it yourself, take your time over the preparation: take out all the old sealant, make sure the joint is clean and dry, and give it the full cure time. If it fails, we can still redo it.
Too much sealant is as bad as too little. A thick, smeared bead looks untidy and doesn’t move well, and the joint depth matters as much as the finish.
What happens on the day
A visit follows a simple pattern: we check the joints, mask and protect the surrounding surfaces, do the work and clear up. Most jobs take a few hours for most jobs. 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 finding the leak and making sure sealant is the cause.
- We cut out the failed silicone, taking care of the glass and frame.
- We clean the joint with a solvent that suits the glass and frame.
- Glazing silicone suited to the joint is applied and tooled.
- We check the joints and, where safe, run water over them.
How to prepare
- Mention any tricky access
- Move anything stored near the joints
- Mention any leaks or damp you’ve noticed
Get a quote
Getting a quote is simple: let us know the job and the location and its rough size. A few photos by email make the job easier to understand, and we’ll come back to you with a quote.
Advice
Different surfaces, different methods
Conservatory frames
Frame-to-wall joints on a conservatory move with the weather. They’re resealed with a suitable sealant.
Glass-to-glass joints
Silicone joins glass panels in many frameless designs. We renew it with a clear or matching glazing silicone.
Looking after it afterwards
Aftercare is simple:
- Run a squeegee over the glass when you’re done
- Inspect the sealant on glazing annually
- Clear the conservatory gutters regularly
- Act on drips or damp patches early
Look over the glazing joints every year or so. Spotting a crack early means a simpler fix, before water gets in.
Act on black or lifting silicone early. Peeling silicone lets water in behind and the leak gets worse.
Windows and doors in Chinatown
Historic houses like Benjamin Franklin House (about 0.4 miles south-east) are a reminder that the area around Chinatown has older buildings as well as new. In older buildings, older frames set in brick or stone need a sealant that suits them, and sometimes that’s traditional sand mastic. In London conversions and blocks, the lease decides who is responsible for the frames, so check that before you book.
In the older streets around St Anne's Church, replacement windows fitted into old openings often leave uneven gaps that need backing and a flexible joint. Schools such as Soho Parish CofE Primary School are buildings too, and its window and door frames need their mastic kept sound, just like a home’s.
Chinatown is about 1 mile east of City of Westminster, in Greater London. Jobs in Chinatown get the same care as everywhere else we work: old sealant removed completely, careful preparation and a 12-month guarantee. 764 places in Greater London are on our list, large and small.
Here we cover the W1F, W1D and W1T postcode area for glazing silicone. Streets in the area include Duck Lane, Drury Lane and Bruton Lane, all of which we cover. Main roads around Chinatown include the A4 and A301, so getting to you is simple. Other places close to Chinatown include Soho (1 mile north), St James's (1 mile south), West End (1 mile north-east), Seven Dials (1 mile north-east) and St Giles (1 mile north-east). Within a short drive, we also cover Kensington (3 miles west), Shoreditch (3 miles north-east), Walthamstow (7 miles north-east), Hoxton (3 miles north-east), Whitechapel (3 miles east) and Hampstead (4 miles north-west).
Landmarks near Chinatown
Locally, jobs take us to homes and businesses close to LITE Regal International School, London Library and Waxy O'Connor's pub and the streets around them. You will also find St Anne's Churchyard (less than half a mile north-west) and Harris Westminster Sixth Form (0.8 miles south). There’s a railway station in Chinatown itself: Tottenham Court Road station. A little further out are Leverian collection (under half a mile south-east) and Montfichet's Tower (1.3 miles east). Not far away are Barnsbury Wood and St. James's Park Lake.
Chinatown: your questions answered
Do you cover Chinatown for glazing silicone?
Yes, Chinatown is within the area we cover. We work across London and the South East. Just ring 0345 464 0079 or send us an email with a few details of the job.
Can parking be tricky for a visit in Chinatown?
Parking in Chinatown, as in most of London, takes a little planning: a visitor permit or a nearby bay makes the day run more smoothly.
Can I add another job to the visit?
Of course. Doing several areas at once is usually more efficient.
Are you fully insured?
Yes. We are fully insured.
How long before the joint can be used?
That depends on the sealant used, so please follow the time we give you.
Can you replace a misted double-glazed unit?
No. We renew the sealant. A glazier replaces glass and units.
Can I do it myself?
Sometimes. Preparation is everything: all the old sealant out, and a clean, dry joint. If it doesn’t work out, we can redo it.
Will there be a smell?
That depends on the sealant. Some products have a noticeable smell, others very little, and any smell fades as they cure.
Why deal with it now?
Replacing windows or a shower screen is not needed for a failed joint. Sound glass and frames generally just need resealing. 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.
Some things make a job bigger or smaller: the old material and how easily it comes out, whether mould needs treating, and whether the work is at height. Your quote takes all of that into account.
Why choose Mr Mastic in Chinatown
- Every job guaranteed for a year
- Rated 4.9 stars on Google
- Experience in homes, commercial sites and hotels
- More than 20 years in sealant work
Take a look at what affects the cost or customer reviews.
When something else is needed
Sealant is not the answer to every problem, and we’d rather say so up front. Sealant will not put right:
- Failed flashing around a conservatory
- A roof that has moved or dropped
- Cracked or broken glass
If in doubt, call 0345 464 0079 or email us and we will say what we think before booking.
Where we work in Chinatown
- Rooflights
- Shower screens
- Conservatory frames
- Glass-to-glass joints
- Glass balustrade bases
- Glass-to-frame joints