Greater London · England
Glazing Silicone in Thamesmead
Glazing silicone across Thamesmead and nearby, with old sealant always removed completely.
- Black or yellowed silicone on glass joints
- Water escaping where a screen meets the wall
- Leaking glazing joints on a rooflight
DIY sealant or a professional job?
Sealing over old silicone is the commonest DIY error. New silicone won’t bond to old, so it peels away and traps moisture behind it. All the old material has to come out first.
A careful DIYer can reseal a simple joint, such as a straightforward joint indoors. Where it goes wrong is sealing over the old bead, working on a wet joint or overloading the gap.
About our glazing silicone in Thamesmead
Frameless shower screens rely on sealant to keep water in. Leaks generally come from the wall joint or the tray joint, and we reseal both. We’re often asked to deal with new silicone smeared over old sealant and mouldy sealant around glass panels, across shower screens, glass-to-frame joints and glass-to-glass joints.
Many London homes are flats, with windows high above the street. In a converted house or block, the lease normally says who is responsible for the windows, so it’s worth checking before booking.
You get a one-year guarantee, the same in Thamesmead as everywhere else we work.
- Place
- Thamesmead (SE28, SE2, DA18)
- Wider area
- Greater London
- Cover
- 12 months on all our work
- Quotes
- A clear quote up front
- Call
- 0345 464 0079
- Page updated
- 26 October 2026

Why deal with it now?
Fixing a leaking screen early protects what’s underneath. A small leak can reach the floor below before it shows. 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.
Every job is a little different, so we quote each one individually. Size, access and the product the joint needs all make a difference.
Why book with us
- White, clear, grey or coloured to suit, where the product allows
- We’re fully insured
- Anti-fungal silicone where joints get wet
- We agree the colour with you first
Take a look at what affects the cost or customer reviews.
Work for landlords, hotels and businesses
From a single let to a portfolio, you get the same standard of work: the old material taken out, careful preparation and a 12-month guarantee.
We regularly work with letting and managing agents. Tell us the address, the job and how access works and we will give you a quote.
What glazing silicone looks like in Thamesmead
Historic houses like Eastbury Manor House (about 2.4 miles north-west) are a reminder that the area around Thamesmead 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. London and the South East are among the drier parts of the UK, though outdoor sealant still has to go onto a dry joint, so the forecast decides the day.
For site and facilities teams at buildings such as Jubilee Primary School, its window and door frames need their mastic kept sound, just like a home’s. Rented homes near Abbey Wood station change hands often, and a shower screen or conservatory joint that leaks is easier to reseal while the property is empty.
Thamesmead is about 2 miles north-east of Plumstead, in Greater London. If you need glazing silicone in Thamesmead, please call 0345 464 0079 or email us for a quick quote. We’re based in Crawley and cover Greater London, Thamesmead included. 764 places in Greater London are on our list, large and small. We also work in London, about 10 miles from Thamesmead.
We work across the SE28, SE2 and DA18 postcode area for glazing silicone. Local streets include Attlee Road, Aisher Road and Carlyle Road, all of which we cover. Nearby, we also carry out glazing silicone in Crossness (1 mile south-east), Dagenham Dock (1 mile north-east), Barking Riverside (1 mile north-west), Thames View Estate (2 miles north-west) and Hornchurch Marshes (2 miles north-east). Further out, we also cover 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).
What’s near Thamesmead
Around Thamesmead, our work takes us to homes and buildings near Harris Garrard Academy and Abbey Wood Park, among other places. For rail, the closest station is Abbey Wood station, roughly 1 mile south of the centre. Nearby you’ll also find Greenwich Borough Museum (1.7 miles south-west) and Gallions Reach Shopping Park (2 miles west). Open spaces near Thamesmead include Crossness Nature Reserve.
Thamesmead questions
Can you help a landlord with a rental near Abbey Wood station?
Yes, landlords and agents are among the people we work for, and several properties can go on one quote. You can phone 0345 464 0079 or send us an email with the details for a clear quote.
Is parking an issue for glazing silicone in Thamesmead?
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.
What guarantee do I get?
Our 12-month guarantee applies on all our work.
Is a special sealant needed for glass?
A glazing-grade silicone is best. We use neutral-cure glazing silicone and anti-fungal silicone in wet areas.
Do you work for hotels and businesses?
Yes. We work in offices, washrooms, hotels and other commercial premises. Working times can be discussed when we quote.
Can a conservatory leak be sealed?
It depends on the cause. Sealant joints we can renew but roof and panel problems need another trade.
Are you an approved applicator?
Yes. We are an ARBOMaster approved applicator.
Do you come to Thamesmead?
Yes. We cover Thamesmead and the rest of Greater London. For a quote, phone 0345 464 0079 or drop us an email.
Do you need glazing silicone in Thamesmead?
Dirt and grease stop silicone sticking. If the glass and frame weren’t cleaned properly, the bead can peel away early.
It’s worth asking for a quote if you see:
- Leaking glazing joints on a rooflight
- Mouldy sealant around glass panels
- Sealant that was laid over old silicone and failed
- Glass-to-glass joints that have split
In the older streets around St Paul, replacement windows fitted into old openings often leave uneven gaps that need backing and a flexible joint.
Comparing quotes
- How long to leave it before use
- How the joint is cleaned and prepared
- Whether you can choose the colour
- Which sealant they’ll use, and why
Also near Thamesmead
Other services in Thamesmead
How it works
Before we leave, we go over the finished joints with you and tell you how long to leave it. The visit itself usually 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. For a job in Thamesmead, parking and access are the things to plan: let us know about parking, the floor we will be working on and any lift or shared entrance.
- First, we trace the leak and check it’s coming through a sealant joint.
- The old sealant is removed from the glass and frame without scratching them.
- The glass and frame are cleaned and degreased.
- Glazing silicone suited to the joint is applied and tooled.
- The finished joints are checked and, where it’s safe, tested with water.
Before we arrive
- Keep pets and children clear of the area while we work
- For business premises, tell us about site rules or sign-in
- Tell us about access, such as stairs, a lift or high-level joints
Ask for a quote
The more we know about the job, the more useful the quote. Tell us where the job is, what’s wrong and how much there is, and add pictures by email if you can.
Read more
What the job involves on each surface
Glass balustrade bases
Balustrade bases are exposed outdoors. Renewing the sealant keeps water out of the channel.
Glass-to-frame joints
Old sealant is removed carefully from the glass before new glazing silicone goes in.
When it is not the sealant
Some problems need a builder, plumber or other trade rather than us:
- Rotten or badly damaged frames
- Glass that needs replacing
- Condensation trapped between two panes
If you are not sure, just ring 0345 464 0079 or send us an email and we will give you a straight answer.
Where we work in Thamesmead
- Glass-to-glass joints
- Rooflights
- Conservatory frames
- Glass-to-frame joints
- Glass balustrade bases
- Shower screens
