Greater London · England
Leaves Green Glazing Silicone
Glazing joints in Leaves Green need attention? We cut out the old, prepare the joints and apply the right sealant.
- Black or yellowed silicone on glass joints
- Leaking glazing joints on a rooflight
- A quick top-up bead that didn’t last
What the job involves on each surface
Conservatory frames
Leaks often start where the frame meets the wall. We remove the failed sealant and renew it.
Shower screens
Mouldy or lifting sealant on a screen leaks. A full reseal sorts it.
Glazing silicone for homes and businesses in Leaves Green
Our work covers conservatory joints, rooflights and glass panels plus shower screens and the bases of glass balustrades. The old sealant comes out, the joint is cleaned and new silicone goes in. We work on glass balustrade bases, rooflights and conservatory frames, and people most often call us about glass-to-glass joints that have split and new silicone smeared over old sealant.
London has a lot of flats and conversions, where windows are often on upper floors. In a converted house or block, the lease usually says who is responsible for the windows, so it’s worth checking before booking.
Every job is covered by our one-year guarantee.
- Place
- Leaves Green (BR2)
- Region
- Greater London
- Guarantee
- A year, on every job
- Quote
- A clear quote up front
- Phone
- 0345 464 0079
- Last updated
- 26 October 2026
Should I try it myself first?
If you’ve already had a go yourself, that is fine. We cut it out and start again, so just mention it when you contact us.
Not every job suits DIY: work at height, external movement joints, fire-rated sealant and large areas need the right product, the right access and the right method.
What happens on the day
At the end, we look at the finished work together and explain the cure time. The visit itself generally takes anything from an hour or two to most of a day, depending on the size of the job, depending on the amount of work. In Leaves Green, 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.
- First we agree the joints to be done.
- We cut away the failed silicone.
- The surfaces are cleaned with a suitable solvent.
- We apply and tool the new silicone.
- The joints are checked before we leave.
Getting ready for the visit
- Tell us about access, such as stairs, a lift or high-level joints
- Try not to wet indoor joints just before the visit
- Keep pets and children clear of the area while we work
Get a quote
For a quote, phone 0345 464 0079 or drop us an email and tell us where the job is and what the problem looks like. We will give you a clear price before any work starts.
Advice
Towns and villages near Leaves Green
Other services in Leaves Green
What happens if it’s left?
If the problem is a misted unit or a broken panel, sealant will not help. We will tell you that rather than seal it anyway and point you to a glazier or roofer. Converted houses in London often have a bathroom above someone else’s living room, so a small leak from tired sealant can mean a neighbour’s ceiling and a lot of disruption. Putting it right early is much less trouble for homes in Leaves Green.
A few things move the cost up or down: the old material and how easily it comes out, any mould to treat, and whether the work is at height. We take all of that into account in your quote.
Why choose Mr Mastic in Leaves Green
- 20+ years of sealant experience
- Domestic, commercial and hotel work
- Full insurance on every job
- We never seal over old sealant
Landlords, agents and businesses in Leaves Green
Mouldy or split sealant often shows up at the end of a tenancy, and it’s easy to sort out between tenants. We can quote for more than one property at once.
A neglected joint can let water reach the structure, which matters even more when someone else lives there. Resealing at the right time is simple maintenance that we can handle for you.
Looking after it afterwards
Aftercare is simple:
- Keep conservatory gutters clear of leaves
- Use a gentle glass cleaner and a soft cloth
- Open vents or windows to let moisture out
- Use gentle products around the joints
Check the joints once a year. 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 Leaves Green
Historic houses like Down House (about 1.1 miles east) are a reminder that the area around Leaves Green has older buildings as well as new. In older buildings, older timber frames in brick or stone need a different approach from a modern uPVC window. Rainfall in the South East is lower than in much of the UK, yet outdoor joints still have to be sealed dry, so jobs are booked with the weather in mind.
For an older house near a landmark such as Keston Parish Church, frames set in older brick or stone need a sealant that suits the wall as well as the frame. As a London address, Leaves Green can be tricky for parking: tell us about permits, visitor bays or off-street space when you book. Rented homes near Hayes (Kent) station change hands often, and glazing joints are worth checking at the end of a tenancy, before a small leak grows.
Leaves Green is about 4 miles south of Bromley, in Greater London. Whether you are in the middle of Leaves Green or further out, glazing silicone is available for homes and businesses alike, from flats and houses to offices and hotels. Leaves Green is one of 764 places in Greater London we cover. Our London page covers work nearby, about 12 miles away.
Here we cover the BR2 postcode area for glazing silicone. If you need glazing silicone at a property on Ashmore Lane and Main Road or anywhere close by, we can help. If you are just outside Leaves Green, we cover Farthing Street (1 mile north-east), Downe (1 mile east), Nash (1 mile north-west), Luxted (1 mile south-east) and Keston (2 miles north). Larger places within reach include London (12 miles north-west), City of Westminster (15 miles north-west), Marylebone (15 miles north-west), Kensington (15 miles north-west), St Pancras (14 miles north-west) and Shoreditch (14 miles north).
Local landmarks in Leaves Green
Locally, jobs take us to homes and businesses close to The Kings Arms and South Park. The nearest railway station is Hayes (Kent) station, about 2.8 miles north of the centre. Well-known places in the area include Bethlem Museum of the Mind (3 miles north) and Princess Royal University Hospital (2.2 miles north-east). Open spaces near Leaves Green include Nore Hill and West Kent Golf Course nature reserve.
When something else is needed
Some problems need a builder, plumber or other trade rather than us:
- Leaks from the roof covering or flashing (a roofer’s job)
- Condensation trapped between two panes
- Rotten or badly damaged frames
If you are not sure, just call 0345 464 0079 or drop us an email and we will give you a straight answer before you book.
Joints and surfaces we work on
- Rooflights
- Glass-to-frame joints
- Shower screens
- Conservatory frames
- Glass-to-glass joints
- Glass balustrade bases
Leaves Green questions
Do you work for landlords with property near Hayes (Kent) station?
Yes. We work for landlords and agents as well as homeowners, and several properties can go on one quote. You can call 0345 464 0079 or drop us an email with the details for a clear quote.
Is Leaves Green in your area for glazing silicone?
Yes, Leaves Green is within the area we cover. We work across London and the South East. You can phone 0345 464 0079 or drop us an email and tell us what needs doing, and we’ll send you a clear quote.
What do you put in the joint?
Quality sealants from brands including Arbo and Everbuild, chosen to suit the joint. We will tell you what we are using and why.
Can you just put new silicone over the old?
New silicone will not bond to old silicone, so a top-up soon lets water through. The old bead always comes out first.
Do you offer different sealant colours?
Yes. White, clear and grey are common, and other colours are available, and we’ll agree it with you first.
Can you replace a misted double-glazed unit?
We do not replace glass. We reseal the joints around it, and we’ll tell you if a unit looks like it has failed.
Can I do it myself?
Some simple jobs can be done by a careful DIYer. The usual mistakes are sealing over old sealant, sealing a damp joint and using too much.
Will there be a smell?
There can be a smell while the sealant cures, which fades as it sets. Ventilation helps.