Greater London · England
Duckett's Green Glazing Silicone
Glazing silicone for conservatories, rooflights, glass panels and shower screens for Duckett's Green, backed by a 12-month guarantee. Ask us for a quote.
- Water running down inside the glass
- Glazing silicone that has cracked or come away
- Stained, discoloured glazing silicone
Should I try it myself first?
Not every job suits DIY: high-level joints, fire-rated gaps, external movement joints and big jobs call for the right materials, safe access and experience.
If you’re set on DIY, put the effort into 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.
Glazing silicone in Duckett's Green
Many conservatory leaks come down to failed sealant, 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. If you are dealing with new silicone smeared over old sealant and water running down inside the glass, we can put it right, on shower screens, glass-to-frame joints and conservatory frames alike.
London’s Victorian and Edwardian terraces were built with timber sash windows, and many still have them or their replacements. Either way, the mastic between frame and brickwork is what stops draughts and rain getting in.
We guarantee the work for a year. If there’s a problem with our work within the year, let us know and we’ll sort it.
- Where
- Duckett's Green (N15, N22, N8)
- Region
- Greater London
- Guarantee
- A year, on every job
- Quotes
- A clear price before we start
- Phone
- 0345 464 0079
- Last updated
- 26 October 2026
The process
Once we are on site, 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, depending on how many joints need doing. In Duckett's Green, flats, stairs and shared entrances are part of the routine. If the building has a concierge, managing agent or access rules, tell us when you book.
- First, we trace the leak and check it’s coming through a sealant joint.
- Old silicone is cut away from the glass and frame without scratching either.
- We clean the joint with a solvent that suits the glass and frame.
- New glazing silicone goes in and is tooled to a neat finish.
- We check the joints and, where safe, run water over them.
How to prepare
- Let us know about stairs, lifts or work at height
- Mention any sign-in or site rules at work premises
- Mention any leaks or damp you’ve noticed
How to get a quote
Asking for a quote is easy: tell us what needs doing and where, and roughly how big it is. Photos by email help us understand the job, and we will come back to you with a quote.
Read more
Different surfaces, different methods
Glass-to-glass joints
Where two panes meet, the silicone joint takes all the movement. It must be clean, neat and well bonded.
Rooflights
A rooflight faces rain and sun from above. The sealant around the glass and frame wears faster than most.
Signs you need glazing silicone in Duckett's Green
Silicone won’t bond to a dirty surface. If the glass and frame weren’t cleaned properly the sealant may lift within a few years.
Keep an eye out for these signs:
- Sealant that was laid over old silicone and failed
- Water escaping where a screen meets the wall
- Leaks where conservatory glass meets the frame
- Water running down inside the glass
As a London address, Duckett's Green can be tricky for parking: tell us about permits, visitor bays or off-street space when you book.
Before booking anyone
- Whether all the old sealant comes out first
- What happens if the job turns out different
- How much experience the applicator has
- How the colour is chosen
Looking after it afterwards
Looking after new joints is easy:
- Keep scrapers and blades away from the silicone
- Clean glass with a mild cleaner and a soft cloth
- Avoid strong solvents on or near the sealant
- Squeegee the shower screen after each use
Keep the new joints dry for as long as we advise so the silicone can set properly. After that, clean glass with a mild cleaner.
Shower screen leaks can go unnoticed. Water can soak into the floor or reach the room below before you spot it.
What glazing silicone looks like in Duckett's Green
In a converted house or block, who looks after the windows depends on the lease, so check that before you book. Compared with the north and west, the South East gets less rain, but outside sealant still needs a dry, clean surface, so outdoor work is planned around the forecast.
Rented homes near Hornsey station change hands often, and leaking glazing joints, shower screens or conservatory seals are worth sorting between tenancies. For an older house near a landmark such as Christ Church, the windows may be timber, sash or later replacements, and each needs the right sealant against the wall.
Duckett's Green is about 3 miles north of Highbury, in Greater London. Whether you are in the middle of Duckett's Green or further out, glazing silicone is available for homes and businesses alike, from flats and houses to offices and hotels. Duckett's Green is one of 764 towns and villages in Greater London we cover. For nearby work, see our London page, about 6 miles away.
We work across N15, N22 and N8 for glazing silicone and the streets around it. That includes homes and businesses on Bury Road, Mark Road and Frome Road and the roads around them. Being close to the A1080, Duckett's Green is simple for us to get to for glazing silicone. Other places close to Duckett's Green include West Green (1 mile south-east), Harringay (1 mile south), St Ann's (1 mile south-east), Broadwater Farm (1 mile north-east) and Tottenham Green (1 mile east). Further out, we also cover London (6 miles south), City of Westminster (6 miles south-west), Marylebone (5 miles south-west), Kensington (8 miles south-west), St Pancras (4 miles south) and Shoreditch (4 miles south).
Local landmarks in Duckett's Green
Typical jobs here are in homes near Moselle Upper School, Ducketts Common and The Queens Head pub, among other places. The closest station to Duckett's Green is Hornsey station, roughly 0.7 miles west. Other landmarks nearby include Greentrees Hospital (1.5 miles north) and Markfield Beam Engine and Museum (1.6 miles east). Not far away are Hollow Pond and Railway Fields.
Landlords, agents and businesses in Duckett's Green
Water getting past a failed joint can damage the building, which matters even more when someone else lives there. Keeping joints in good order is simple maintenance.
Letting agents and landlords in Duckett's Green can book us as well as homeowners. Sealant work between tenants is a simple way to keep a property in good order.
Also near Duckett's Green
Also in Duckett's Green
Questions from Duckett's Green
Do you cover Duckett's Green for glazing silicone?
Yes, Duckett's Green is within the area we cover. We work across London and the South East. Just ring 0345 464 0079 or email us with a few details of the job.
Do you work for landlords with property near Hornsey station?
Yes, landlords and agents are among the people we work for, and several properties can go on one quote. Just ring 0345 464 0079 or drop us an email with the address and what needs doing, and we’ll give you a clear quote.
Will you leave a mess?
Very little: the area around the joints is protected first, and we tidy up before we go.
Can you reseal a frameless shower screen?
Yes. We cut out the old silicone and reseal the glass-to-wall and glass-to-tray joints.
Can a conservatory leak be sealed?
Yes, when the leak is a failed sealant joint. If it’s a broken panel, failed unit or roof problem, we’ll tell you.
Do you remove the old sealant?
Yes. Sealing over old sealant is the main reason resealing fails early, and it’s something we never do.
Can you match the sealant colour?
Normally, yes. Sealants come in white, clear, grey and other colours, and we agree the colour with you before any work starts.
How long does the job take?
As a guide, most jobs take a few hours for most jobs. Bigger jobs take longer, and we’ll say how long yours will take.
Why it’s worth doing now in Duckett's Green
A new conservatory roof is a big job. Where the water is getting in through sealant, resealing is far simpler. If it’s the roof itself, we will tell you. Damp from a failed joint spreads quietly in older London brickwork and timber, and once it shows in Duckett's Green, the repair is bigger than a sealant job.
The cost depends on the amount of work, how much old material has to come out and access to the work. You’ll have a clear quote before any work starts.
Why choose Mr Mastic in Duckett's Green
- Colour picked to suit the job
- Full insurance on every job
- 12-month guarantee on every job
- Over 20 years’ experience
See our cost guide or what customers say.