Greater London · England
Glazing & conservatory sealant in Crossness, Greater London
Glazing silicone for conservatories, rooflights, glass panels and shower screens for householders, landlords and businesses in Crossness. Fully insured, ARBOMaster approved and guaranteed for a year.
- Water getting into a conservatory at the joints
- Cracked silicone between glass panels
- A quick top-up bead that didn’t last
What we cannot put right
In fairness, there are a few things sealant will not fix:
- A broken pane or roof panel
- Leaks from the roof covering or flashing (a roofer’s job)
- Condensation trapped between two panes
Not sure which it is? You can call 0345 464 0079 or email us and we will tell you honestly.
Where we work in Crossness
- Shower screens
- Glass balustrade bases
- Rooflights
- Glass-to-frame joints
- Glass-to-glass joints
- Conservatory frames
About our glazing silicone in Crossness
Not every silicone suits glass. We use a neutral-cure glazing silicone, which suits glass and most frame materials, and we tool it to a neat, even finish. If you’re dealing with cracked silicone between glass panels and new silicone smeared over old sealant, we can help, whatever the surface.
From mansion-block windows to modern glazing in new flats, London has every kind of frame. The mastic around them dries out and cracks with age, letting in draughts and water.
Our work is backed for twelve months, in Crossness and everywhere else we cover.
- Where
- Crossness (SE2, SE28, DA18)
- Region
- Greater London
- Cover
- A year, on every job
- Quotes
- A clear quote up front
- Call
- 0345 464 0079
- Page updated
- 26 October 2026
How the job changes by surface
Shower screens
Most shower screen leaks come from the wall or tray joint. We reseal both with anti-fungal silicone.
Glass balustrade bases
We reseal the joint where the glass meets the base channel. We do not install or replace glass.
Aftercare tips
Simple care keeps the joints in good condition. Our advice:
- Keep harsh solvents off the silicone
- Look over the glazing joints once a year
- Avoid scraping close to the bead
- Check the gutters above the glazing for debris
Avoid scraping near the new silicone when you clean. Stick to a soft cloth.
Damp patches, drips and condensation along a joint are worth checking. It may be sealant, or something else and we will find out which.
Landlords, agents and businesses in Crossness
Whether it’s one flat or a portfolio, the work is the same standard: the old material taken out, careful preparation and a 12-month guarantee.
Landlords and agents in Crossness can book us as well as homeowners. Sealant work between tenants is a simple way to keep a property in good order before the next move-in.
Common questions in Crossness
Do you cover Crossness for glazing silicone?
Yes, Crossness 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, and we’ll give you a clear price.
Can you help a landlord with a rental near Abbey Wood station?
Yes. We work for landlords and letting agents as well as homeowners. You can ring 0345 464 0079 or drop us an email with the details for a clear quote.
How long will you be here?
Most jobs take a few hours for most jobs, including the preparation. Your quote will say how long we expect yours to take.
How much does glazing silicone cost in Crossness?
The cost depends on the size of the job, access and how much old sealant has to come out. Ask us for a quote.
Can you replace a misted double-glazed unit?
No. We renew the sealant. A glazier replaces glass and units.
Can you work on commercial sites?
Yes. We work in offices, washrooms, hotels and other commercial premises, as well as homes. Working times can be discussed when we quote.
Does someone need to be in?
We need access to the joints, so we will agree that with you when we book. For inside work, that normally means someone being in.
Is it possible to redo the silicone on a shower screen?
Yes. We cut out the old silicone and reseal the glass-to-wall and glass-to-tray joints.
Signs you need glazing silicone in Crossness
Sealant laid over old sealant doesn’t last. Plenty of leaks come from a quick top-up over the old bead, and water gets between the layers.
Signs it’s time to call us include:
- Water getting into a conservatory at the joints
- Silicone pulling away from the glass
- Drips on the inside of a conservatory window
- A quick top-up bead that didn’t last
Schools such as St John Fisher Catholic Primary School are buildings too, and its window and door frames need their mastic kept sound, just like a home’s.
Questions to ask before booking
- Whether the sealant suits the joint
- Whether you can choose the colour
- What insurance they hold
- How long to leave it before use
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’ve already had a go yourself, that is fine. We cut it out and start again.
How it works
There is not much for you to do on the day. Show us the job and we’ll take it from there. The job generally takes anything from an hour or two to most of a day, depending on the size of the job, including the tidy-up. In Crossness, 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 check where the water gets in.
- We remove the old sealant carefully.
- We clean the glass and frame so the new silicone bonds.
- A neutral-cure glazing silicone is applied and tooled.
- Each joint is checked and, where possible, water-tested.
Before we arrive
- Mention any sign-in or site rules at work premises
- Keep pets and children clear of the area while we work
- Mention any tricky access
How to get a quote
To get a quote, phone 0345 464 0079 or drop us an email with the location and a short description of the problem. We will give you a clear price before any work starts.
Read more
Windows and doors in Crossness
Historic houses like Rainham Hall (about 2.8 miles north-east) are a reminder that the area around Crossness 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 is traditional sand mastic. Rainfall in the South East is lower than in much of the UK, but outside sealant still needs a dry, clean surface, so outdoor work is planned around the forecast.
Letting a property close to Abbey Wood station? Then glazing joints are worth checking at the end of a tenancy, before a small leak grows. Crossness is in London, so parking needs planning: tell us about permits, visitor bays or off-street space when you book.
Crossness is about 2 miles north-west of Erith, in Greater London. Homes, rented property, offices and hotels in Crossness is covered for glazing silicone. The work is guaranteed for a year. Our area takes in 764 places across Greater London, large and small. You can also see our page for London, roughly 10 miles from Crossness.
We work across SE2, SE28 and DA18 for glazing silicone. Streets in the area include Kale Road, Haldane Road and Seacourt Road. With the A2016 close by, Crossness is simple for us to get to. If you are just outside Crossness, we cover Thamesmead (1 mile north-west), Dagenham Dock (1 mile north), Barking Riverside (2 miles north-west), Hornchurch Marshes (2 miles north-east) and Dagenham Green (2 miles north). Larger places within reach include London (10 miles west), City of Westminster (12 miles west), Marylebone (12 miles west), Kensington (14 miles west), St Pancras (11 miles west) and Shoreditch (9 miles west).
Landmarks near Crossness
In Crossness, that means homes and buildings near Lesnes Abbey Woods, Harris Garrard Academy and Belvedere Working Mens Club pub and the streets around them. The closest station to Crossness is Abbey Wood station, roughly 0.8 miles south-west of the centre. Other landmarks nearby include Erith and District Hospital (2.1 miles south-east) and Gallions Reach Shopping Park (2.4 miles west). For a walk, there’s Crossness Nature Reserve.