Greater London · England
Glazing & conservatory sealant in Millbank, Greater London
Glazing silicone in Millbank from a team with over 20 years’ experience. Rated 4.9 on Google from 180+ five-star reviews.
- Cracked silicone between glass panels
- Water getting into a conservatory at the joints
- Failed sealant around rooflight glass
Surface by surface
Conservatory frames
Frame joints face sun and rain all year. Renewed sealant keeps water out.
Glass-to-frame joints
Where glass sits in a frame, silicone keeps water out. When it splits, water can get into the frame.
About our glazing silicone in Millbank
Across Millbank, we reseal glazing joints in homes, offices and hotels. From conservatories to shower screens, it’s the same careful method. We work on conservatory frames, glass balustrade bases and glass-to-glass joints, and common reasons people get in touch are mouldy sealant around glass panels and water escaping where a screen meets the wall.
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.
We guarantee the work for a year. If something is not right with it in that time, tell us and we’ll put it right.
- Place
- Millbank (SW1P, W1J, SW1V)
- Region
- Greater London
- Guarantee
- 12 months on all our work
- Price
- A clear quote up front
- Telephone
- 0345 464 0079
- Page updated
- 26 October 2026
What happens if it’s left?
Replacing a conservatory roof is major work. If the leak is a failed sealant joint renewing the joint is the simpler fix. If the roof is the problem, we’ll say so. In London conversions, one flat’s bathroom is often above another flat’s ceiling, and a slow leak from a failed seal can end up in the flat below. Dealing with it early is far simpler.
A failed joint rarely gets cheaper to fix by waiting, because water and mould keep working on it. If you are unsure, phone 0345 464 0079 or email us and we will give you an honest view and a quote.
What you get with us
- An ARBOMaster approved applicator
- Sealant colour chosen to suit
- White, clear, grey or another colour, product permitting
- Anti-fungal sanitary silicone in wet areas
See what affects the cost or our reviews.
DIY versus a professional finish
Some sealant jobs are within reach of a careful DIYer, like a short, easy-to-reach joint indoors. The common mistakes are sealing over old sealant, sealing a damp joint and using far too much.
Too much sealant is as bad as too little. A heavy bead looks messy and copes badly with movement, and the joint depth matters as much as the finish.
What sealant work can’t fix
Honest advice matters more to us than a booking, so here’s what sealant can’t fix:
- Water coming through the roof rather than a sealant joint
- A roof that has moved or dropped
- Rotten or badly damaged frames
Not sure which it is? You can phone 0345 464 0079 or drop us an email and we will tell you honestly before you book.
Joints and surfaces we work on
- Glass-to-frame joints
- Shower screens
- Rooflights
- Conservatory frames
- Glass-to-glass joints
- Glass balustrade bases
How the visit works
At the end, we look at the finished work together. The work normally takes a few hours for most jobs, depending on how much there is to do. Parking in much of London is by permit or pay-and-display, so it helps to know what’s near you in Millbank. A visitor permit or a nearby bay makes the visit run more smoothly.
- 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.
- We check the finished joints and test with water where it’s safe.
Before we arrive
- Mention any parking rules near the property
- Tell us about access, such as stairs, a lift or high-level joints
- Clear the area around the work
Get a quote
For a quick quote, get us on the phone, or email us if that’s easier. Tell us about the joints that need doing and we’ll explain what’s involved before giving you a price.
Advice
Millbank questions
Is Millbank in your area for glazing silicone?
Yes. We work across London and the South East, and Millbank is part of that. You can ring 0345 464 0079 or drop us an email and tell us what needs doing, and we’ll send you a clear quote.
Can parking be tricky for a visit in Millbank?
Parking in Millbank, as in most of London, takes a little planning: a visitor permit or a bay close to the door helps a lot, so mention what’s available when you book.
Do you work for letting agents?
Yes, often. Several properties can go on one quote, and between tenancies is a good time for the work.
Do you hold any approvals?
Yes. We’re approved under the ARBOMaster scheme, which is run for the Arbo sealant brand.
Which silicone is used for glass joints?
We pick a glazing silicone to suit the materials. Neutral-cure products suit most glass and frames.
Is it worth trying it myself?
It depends on the job. High-level, external movement and fire-rated joints are professional jobs.
Can you quote for more than one area?
Of course. Doing several areas at once is generally more efficient, so mention them when you ask for a quote.
What sealant do you use?
Products from Arbo and Everbuild, among others, picked for each joint. We explain the product when we quote.
Windows and doors in Millbank
In a converted house or block, who looks after the windows depends on the lease, so it’s worth checking before booking. Compared with the north and west, the South East gets less rain, though outdoor sealant still has to go onto a dry joint, so the forecast decides the day.
If you let a flat or house near London Victoria station, a shower screen or conservatory joint that leaks is easier to reseal while the property is empty. In the older streets around Christ Church, replacement windows fitted into old openings often leave uneven gaps that need backing and a flexible joint.
Millbank is about 1 mile south-east of City of Westminster, in Greater London. Every kind of property in Millbank can book us for glazing silicone, old or new, large or small. Every job comes with our 12-month guarantee. Our Greater London coverage runs to 764 places, Millbank among them.
Every address in SW1P, W1J and SW1V is within our area for glazing silicone. Local streets include Eaton Lane, Wilton Road and Castle Lane, and we cover them all. Main roads around Millbank include the A4 and A202, which makes travel easy. Nearby, we also carry out glazing silicone in Westminster (1 mile north), Victoria (1 mile south-west), Pimlico (1 mile south), Vauxhall (1 mile south-east) and Lambeth (1 mile south-east). Further out, we also cover Kensington (3 miles west), Shoreditch (3 miles north-east), Walthamstow (8 miles north-east), Hoxton (3 miles north-east), Whitechapel (3 miles north-east) and Hampstead (4 miles north-west).
Local landmarks in Millbank
Typical jobs here are in homes near Blewcoat School, St Matthew's School and London Library, among other places. Other local landmarks include St James's Park (under half a mile north) and Grafton Arms (within half a mile south). The nearest railway station is London Victoria station, roughly 0.6 miles south-west. Other landmarks nearby include Westminster Hospital (under half a mile east) and Kingly Court (0.9 miles north). The countryside around Millbank includes St. James's Park Lake and Ludgate Hill.
Common problems we fix in Millbank
Sunlight breaks sealant down and roof joints get the most sun. It goes brittle, cracks and stops sticking to the glass and frame.
People normally contact us when they notice one of these:
- Drips on the inside of a conservatory window
- Conservatory leaks at frame and glazing joints
- Leaks from the base of a shower screen
- Sealant that was laid over old silicone and failed
As a London address, Millbank can be tricky for parking: tell us about permits, visitor bays or off-street space when you book.
What to look for in a quote
- Is the old sealant removed completely?
- Are they insured?
- What preparation is included
- Whether you can choose the colour
How to look after the new joints
Aftercare is simple:
- Ventilate the conservatory to cut condensation
- Check the silicone on glass every year or so
- Stick to mild cleaners on glass
- Avoid strong solvents on or near the sealant
Look over the glazing joints every year or so. Catching a split early keeps the repair small, before water gets in.
Do not leave lifting or mouldy silicone on glazing. Peeling silicone lets water in behind and the leak gets worse.