Greater London · England
Glazing Silicone in Little Portugal
Glazing silicone for conservatories, rooflights, glass panels and shower screens for homeowners, landlords and businesses in Little Portugal. ARBOMaster approved applicators, fully insured, with a 12-month guarantee.
- Stained, discoloured glazing silicone
- A quick top-up bead that didn’t last
- Silicone pulling away from the glass
About our glazing silicone in Little Portugal
Our work covers conservatory joints, rooflights and glass panels plus shower screens and the bases of glass balustrades. Each joint is cut out, cleaned and resealed. Typical jobs include leaks where conservatory glass meets the frame and failed joints on frameless glass, across glass balustrade bases, glass-to-frame joints and rooflights.
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.
We stand behind the work with a one-year guarantee.
- Location
- Little Portugal (SW9, SW8, SW1P)
- Wider area
- Greater London
- Cover
- A year, on every job
- Quote
- Quoted before any work starts
- Telephone
- 0345 464 0079
- Updated
- 26 October 2026
Common questions in Little Portugal
Is Little Portugal in your area for glazing silicone?
Yes. We work across London and the South East, and Little Portugal is part of that. You can phone 0345 464 0079 or email us and let us know what needs doing.
Can you help a landlord with a rental near Wandsworth Road station?
Yes. We work for landlords and agents as well as householders. Just call 0345 464 0079 or drop us an email with the address and what needs doing, and we will send you a clear quote.
Why not top up the existing silicone?
New silicone will not bond to old silicone, so a top-up soon lets water through. We cut out the old sealant first.
Do you replace glass?
No. Misting between panes means the sealed unit has failed and needs replacing by a glazier.
How long does glazing silicone take?
Most jobs take a few hours, depending on how many joints need doing. We’ll confirm how long when we quote.
Can you reseal the base of a glass balustrade?
Yes. The sealant joint at the base can be renewed. We don’t install or replace the glass.
Do you take out the old sealant first?
Always. Sealing over old sealant is the main reason resealing fails early, and it’s something we never do.
Do I need to be at home?
We need access to the joints, so we will agree that with you when we book. Indoors, that normally means someone at home.
Places near Little Portugal
Also in Little Portugal
When to call us in Little Portugal
Using a sealant not made for glass causes many failures. Not every silicone sticks properly to glass and vinegar-smelling acetoxy silicone can attack some metals.
It’s worth asking for a quote if you see:
- Rooflight joints letting water in
- Drips on the inside of a conservatory window
- Leaks where conservatory glass meets the frame
- Black or yellowed silicone on glass joints
Little Portugal is in London, so parking needs planning: tell us about permits, visitor bays or off-street space when you book.
Before you book anyone
- Which sealant they’ll use, and why
- How long to leave it before use
- Whether they seal over old material or remove it
- What preparation is included
How the visit works
Most of a good job is in the preparation, so that’s where we spend the time. Joints are cleaned back and dried before anything new goes in. In total, it usually takes a few hours, depending on how many joints need doing. In a London area like Little Portugal, the main things to plan are parking and access: tell us about permits, visitor bays or off-street space, which floor we are working on and whether there’s a lift.
- First, we check where the water gets in.
- The failed silicone is cut out without marking the glass or frame.
- The joint is cleaned and degreased.
- A neutral-cure glazing silicone is applied and tooled.
- Each joint is checked and, where possible, water-tested.
How to prepare
- Where the joints are inside, avoid wetting them before we arrive
- Let us know about parking restrictions
- Mention if the joints have been sealed before
Getting a quote
To get a quote, phone 0345 464 0079 or email us with the location and a short description of the problem. You will have a clear quote before work begins.
Read more
DIY sealant or a professional job?
What a professional job adds is preparation and the right product. Joints are cleaned back to sound surfaces and dried, and the sealant is chosen for how the joint moves and where it is, and the work is guaranteed for a year.
Some jobs are best left to a professional: work at height, external movement joints, fire-rated sealant and large areas call for the right materials, safe access and experience.
Frames and glazing around Little Portugal
In London conversions and blocks, the lease decides who is responsible for the frames, so it’s worth checking before booking. Compared with the north and west, the South East gets less rain, yet outdoor joints still have to be sealed dry, so jobs are booked with the weather in mind.
Homes close to St Stephen's Church include some older properties, and replacement windows fitted into old openings often leave uneven gaps that need backing and a flexible joint. Schools such as Platanos College are buildings too, and its window and door frames need their mastic kept sound, just like a home’s.
Little Portugal is about 1 mile north of Stockwell, in Greater London. We provide glazing silicone to homeowners, landlords and businesses in Little Portugal and the surrounding area. 764 places in Greater London are on our list, large and small.
We cover every part of SW9, SW8 and SW1P for glazing silicone. Streets in the area include Kay Road, Lett Road and Rita Road, all of which we cover. Main roads around Little Portugal include the A203, so getting to you is simple. If you are just outside Little Portugal, we cover South Lambeth (1 mile north), North Brixton (1 mile east), Stockwell (1 mile south), Kennington (1 mile north) and Oval (1 mile north). Larger places within reach include City of Westminster (3 miles north-west), Marylebone (3 miles north), Kensington (4 miles north-west), St Pancras (4 miles north), Shoreditch (4 miles north-east) and Walthamstow (9 miles north-east).
What’s near Little Portugal
Typical jobs here are in homes near Allen Edwards Primary School, Larkhall Park and The Canton Arms. You will also find Durand Academy (under half a mile east) and Lambeth Palace Library (1.6 miles north). The closest station to Little Portugal is Wandsworth Road station, about 0.7 miles south-west of the centre. Other landmarks nearby include Type Museum (within half a mile east) and The Gordon Hospital (1.4 miles north-west). For a walk, there’s Knight's Hill and Battersea Park Lake.
What happens if it’s left?
Topping up old silicone can look like a fix, but silicone doesn’t stick to silicone, and the leak generally returns. Cutting out and resealing properly lasts. Damp from a failed joint spreads quietly in older London brickwork and timber, and by the time it shows on a wall or ceiling in Little Portugal, the repair is bigger than the sealant job would have been.
Leaving a failed joint usually makes the job bigger, not smaller, because water and mould keep working on it. If you’re not sure whether it needs doing, call 0345 464 0079 or drop us an email and we’ll give you an honest view and a quote.
What you get with us
- Homes, businesses and hotels
- Sanitary silicone with an anti-fungal additive in wet areas
- Rated 4.9 stars on Google
- Full insurance on every job
Take a look at our cost guide or customer reviews.
How the job changes by surface
Rooflights
We reseal the glazing joints on rooflights. Leaks from the roof itself need a roofer.
Glass-to-glass joints
Frameless glass corners and panels are joined with silicone. We renew it with a clear or matching glazing silicone.
Work for landlords, hotels and businesses
If you manage several properties in or around Little Portugal, several properties can go on one quote. Just tell us the addresses and what each one needs, and pictures by email help.
Hotels need rooms back in use, so the work can be planned room by room around your bookings where we can. Hotel work is part of what we do, alongside homes and businesses.
Keeping the joints in good condition
Good habits help new joints last longer. A few tips:
- Squeegee the shower screen after each use
- Check the silicone on glass every year or so
- Open vents or windows to let moisture out
- Act on drips or damp patches early
Keep conservatory gutters clear, so water drains away from the joints. Overflowing gutters can cause leaks of their own.
If silicone on glass has cracked, water is already getting in. Renewing it early keeps it simple compared with fixing water damage later.