Greater London · England
Woolwich Glazing Silicone
Glazing silicone for conservatories, rooflights, glass panels and shower screens for homes and businesses in Woolwich and across Greater London. ARBOMaster approved applicators, fully insured, with a 12-month guarantee.
- Glazing silicone that has cracked or come away
- Glass-to-glass joints that have split
- Stained, discoloured glazing silicone
How we handle glazing silicone in Woolwich
Glass replacement isn’t something we do, and misting between panes means a failed sealed unit. Our work is the sealant joints, which is where many leaks start. We work on glass-to-glass joints, glass-to-frame joints and rooflights, and people most often call us about silicone pulling away from the glass and stained, discoloured glazing silicone.
Many London homes are flats, with windows high above the street. Who looks after the outside of the frames can depend on the lease, so check that first, and access in Woolwich is something to talk through when you book.
There’s a 12-month guarantee on every job, large or small.
- Where
- Woolwich (SE18, E16, SE7)
- Wider area
- Greater London
- Cover
- 12 months on all our work
- Quotes
- A clear price before any work starts
- Call
- 0345 464 0079
- Updated
- 26 October 2026
Glazing silicone in Woolwich: local notes
London and the South East are among the drier parts of the UK, but outside sealant still needs a dry, clean surface, so outdoor work is planned around the forecast. Historic houses like Queen's House (about 2.9 miles west) are a reminder that the area around Woolwich has older buildings as well as new. Where a home is older, older frames set in brick or stone need a sealant that suits them, and sometimes that’s traditional sand mastic.
Historic houses such as Queen's House, about 2.9 miles west, show how far back building around Woolwich goes. For landlords with property near Woolwich Dockyard station, leaking glazing joints, shower screens or conservatory seals are worth sorting between tenancies.
Woolwich is about 6 miles south-east of Leyton, in Greater London. If you need glazing silicone in Woolwich, please call 0345 464 0079 or send us an email for a quick quote. We’re based in Crawley and cover Greater London, Woolwich included. Woolwich is one of 764 towns and villages in Greater London we cover. We also work in London, about 7 miles from Woolwich.
Postcode districts we cover here for glazing silicone: SE18, E16 and SE7. Whether your property is on Market Street, Woolwich High Street and Beresford Square Market Place or a nearby road, we can help. We also cover Plumstead (1 mile east), Charlton (1 mile west), New Charlton (1 mile west), Shooter's Hill (1 mile south) and Kidbrooke (2 miles south-west). Within a short drive, we also cover London (7 miles west), City of Westminster (9 miles west), Marylebone (9 miles west), Kensington (11 miles west), St Pancras (8 miles west) and Shoreditch (7 miles north-west).
Landmarks near Woolwich
Locally, jobs take us to homes and businesses close to Woolwich Common, Oasis Academy Silvertown and Oasis Academy Silvertown. Woolwich has its own railway station: Woolwich Dockyard station. Well-known places in the area include Royal Artillery Museum (0.5 miles north-east) and British Hospital for Mothers and Babies (0.5 miles west). Open spaces near Woolwich include Gilbert's Pit.
Different surfaces, different methods
Rooflights
Water around a rooflight is not always the sealant. We find the cause first.
Glass-to-frame joints
Old sealant is removed carefully from the glass and reseal with glazing silicone.
Nearby places to Woolwich
More services for Woolwich
What happens on the day
Our applicators work methodically: protect, prepare, seal, tidy. For most jobs that takes anything from an hour or two to most of a day, depending on the size of the job and we leave things clean and tidy. For a job in Woolwich, parking and access are the things to plan: tell us about permits, visitor bays or off-street space, which floor we’re working on and whether there’s a lift.
- We start by finding the leak and making sure sealant is the cause.
- 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 look over every joint and, where we can, test it with water.
How to prepare
- Plan for the work area to be out of bounds to pets and children
- Mention any leaks or damp you’ve noticed
- For indoor joints, keep the area dry beforehand if you can
How to get a quote
For glazing silicone in Woolwich, call 0345 464 0079 or send us an email. Tell us what the problem is and where, and you will get a clear quote before any work starts.
Advice
What happens if it’s left?
If the problem is a misted unit or a broken panel, sealant won’t help. We’ll tell you that rather than seal it anyway, so you can call the right trade. Converted houses in London often have a bathroom above someone else’s living room, and a slow leak from a failed seal can end up in the flat below. Dealing with it early is far simpler.
No two jobs are quite the same, so we quote each one individually. The number of joints, how easy they are to reach and the sealant needed all play a part, and we’ll explain the quote if you ask.
Why choose Mr Mastic in Woolwich
- Full insurance on every job
- Sanitary silicone with an anti-fungal additive in wet areas
- Tidy, careful work
- Homes, businesses and hotels
Signs you need glazing silicone in Woolwich
Heat and cold make glass and frames move at different rates. In time, the sealant splits or pulls away.
It’s worth asking for a quote if you see:
- Stained, discoloured glazing silicone
- Leaks where conservatory glass meets the frame
- Water tracking down the inner face of the glass
- Leaking glazing joints on a rooflight
For site and facilities teams at buildings such as Mulgrave Primary School, the mastic around its windows and doors needs looking after like any other building’s.
What your quote should include
- Whether all the old sealant comes out first
- What happens if the job turns out different
- Which colour the sealant will be
- What the cure time is
Landlord and commercial work in Woolwich
If you manage several properties in or around Woolwich, jobs at different addresses can be quoted together. Send us the addresses and the work at each.
Housing providers, facilities teams and property managers book us too. We can quote a run of properties together, and we are fully insured.
Questions from Woolwich
Can you do glazing silicone in Woolwich?
Yes, Woolwich is within the area we cover. We work across London and the South East. Just phone 0345 464 0079 or drop us an email with a few details of the job.
Is parking an issue for glazing silicone in Woolwich?
In much of London, parking needs planning: a visitor permit or a bay close to the door helps a lot, so mention what’s available when you book.
Do the sealants smell?
Sometimes, a little. Any smell clears as the sealant cures.
Can you work on commercial sites?
Yes. We’ve worked for hotels, offices and other businesses.
Can I do it myself?
Some simple jobs can be done by a careful DIYer. Most DIY failures come from sealing over old material, wet joints or too much sealant.
What guarantee do I get?
Our 12-month guarantee applies on all our work.
Can I choose the sealant colour?
Yes. Sealants come in white, clear, grey and other colours for many products, and we agree the colour with you before we start.
When is the sealant fully cured?
That depends on the sealant used, so follow the cure time we give you.
What affects the cost of glazing silicone
Call for a quick quote. The main things that affect it are:
- Any mould that needs treating
- How many areas need sealing
- The product the joint needs
- The size of the job
Leaving a failed joint generally makes the job bigger, not smaller, as water and mould keep getting in. If you are not sure whether it needs doing, call 0345 464 0079 or email us for an honest opinion and a quote.
What we need to know
To help us quote quickly, please include:
- What’s wrong with the joints now
- Pictures of the joints, sent by email
- Any previous sealing or DIY work
- Where the job is, and your postcode
A good description makes for an accurate quote. Tell us where the job is, what’s wrong and how much there is, and email pictures if that is easy.
Can I do it myself?
The difference is mostly in the preparation and the product. Joints are cleaned back to sound surfaces and dried, and the sealant is chosen for how the joint moves and where it is, then guaranteed for a year.
The biggest DIY mistake is sealing over old sealant. New silicone will not bond to old, so it peels away and traps moisture behind it. Everything old must be removed first.