Greater London · England
Glazing Silicone in Keston
Specialist glazing silicone for Keston: careful preparation, the right product and tidy work. Call for a quick quote.
- Water running down inside the glass
- Rooflight joints letting water in
- Leaks from the base of a shower screen
Glazing silicone in Keston
Glass, frames and walls all move at different rates, so the sealant between them does a lot of work. Once it splits or comes away, water finds a way through. We replace it with a glazing silicone that suits the glass and frame. If you have black or yellowed silicone on glass joints and new silicone smeared over old sealant, we can help, whatever the surface.
London’s Victorian and Edwardian terraces were built with timber sash windows, and many still have them or their replacements. Either way, the mastic between frame and brickwork is what stops draughts and rain getting in, in Keston as anywhere.
Whatever the size of the job, it’s backed by our 12-month guarantee in Keston and across Greater London.
- Location
- Keston (BR2)
- Wider area
- Greater London
- Cover
- A year, on every job
- Quote
- A clear price before we start
- Telephone
- 0345 464 0079
- Page updated
- 26 October 2026
Different surfaces, different methods
Rooflights
Water around a rooflight is not always the sealant. We check which it is.
Conservatory frames
Exposed frame joints wear with the weather. A fresh bead seals them again.
What affects the cost of glazing silicone
We don’t publish a price list. What we look at:
- How much old sealant there is and how hard it is to remove
- How easy the joints are to reach
- Any working-time requirements on site
- The product the joint needs
What you pay reflects the work, not a rough estimate. That is why we ask about the job first and agree the price before starting.
Helping us quote
What to tell us when you ask for a quote:
- Pictures of the joints, sent by email
- The problem you’ve noticed
- Access, such as stairs, a lift or height
- Where the job is, and your postcode
For a quote, call 0345 464 0079 or email us with the location and a short description of the problem. You’ll have a clear quote before work begins.
Common problems we fix in Keston
UV light ages silicone and roof joints get the most sun. Old silicone hardens, cracks and loses its grip to the glass and frame.
Keep an eye out for any of the following:
- Cracked silicone between glass panels
- Sealant that was laid over old silicone and failed
- Glazing silicone that has cracked or come away
- Leaks from the base of a shower screen
Homes close to Keston Parish Church include some older properties, and the windows may be timber, sash or later replacements, and each needs the right sealant against the wall.
Questions to ask before booking
- Who turns up on the day
- When the joint can take water or movement
- How hidden problems are handled
- Whether they seal over old material or remove it
What glazing silicone looks like in Keston
In London conversions and blocks, the lease decides who is responsible for the frames, so it’s worth checking before booking. Rainfall in the South East is lower than in much of the UK, yet outdoor joints still have to be sealed dry, so jobs are booked with the weather in mind.
Letting a property close to Hayes (Kent) station? Then leaking glazing joints, shower screens or conservatory seals are worth sorting between tenancies. Managing a site like Keston Church of England Primary School? Then its window and door frames need their mastic kept sound, just like a home’s.
Keston is about 3 miles south of Bromley, in Greater London. Homes, rented property, offices and hotels in Keston is covered for glazing silicone. Every job comes with our 12-month guarantee. Keston is one of 764 places in Greater London we cover. We also work in London, around 11 miles away.
Work in BR2 works the same way as everywhere else we cover. That includes homes and businesses on Church Road, Greys Park Close and Heathfield Road and the roads around them. Neighbouring places we cover for glazing silicone include Nash (1 mile west), Farthing Street (1 mile south-east), Locksbottom (1 mile north-east), Leaves Green (2 miles south) and Hayes (2 miles north-west). Larger places within reach include London (11 miles north-west), City of Westminster (13 miles north-west), Marylebone (13 miles north-west), Kensington (14 miles north-west), St Pancras (13 miles north-west) and Shoreditch (12 miles north).
Landmarks near Keston
In Keston, that means homes and buildings near South Park, Ravens Wood School and The Greyhound pub, among other places. The nearest railway station is Hayes (Kent) station, roughly 1.5 miles north-west. Nearby you’ll also find Princess Royal University Hospital (1.1 miles east) and Bethlem Museum of the Mind (1.5 miles north). For a walk, there’s West Kent Golf Course nature reserve and Summer Hill.
Places near Keston
Other services in Keston
What happens if it’s left?
Resealing can’t fix a failed unit or a cracked panel. We say so plainly and point you to a glazier or roofer. In older London homes, water behind a failed joint soaks into brick and timber without much sign, and once it shows in Keston, the repair is bigger than a sealant job.
Some things make a job bigger or smaller: how much old sealant there is and how stubborn it is, any mould to treat, and whether we need extra access for height. We take all of that into account in your quote.
Why Keston clients choose us
- Sanitary silicone with an anti-fungal additive in wet areas
- Every job guaranteed for a year
- ARBOMaster approved applicator
- White, clear, grey or coloured to suit, where the product allows
Read our cost guide and customer reviews.
What we can’t put right
New sealant cannot fix everything, and we will tell you before work begins. It will not solve:
- Cracked or broken glass
- A roof that has moved or dropped
- Water coming through the roof rather than a sealant joint
If you’re not sure, just phone 0345 464 0079 or send us an email and we’ll give you a straight answer before you book.
Joints and surfaces we work on
- Conservatory frames
- Glass balustrade bases
- Glass-to-glass joints
- Glass-to-frame joints
- Shower screens
- Rooflights
Keston questions
Can you help a landlord with a rental near Hayes (Kent) station?
Yes, we work for letting agents and landlords. You can call 0345 464 0079 or drop us an email with the address and a few details, and we will give you a fixed price before work begins.
Can you do glazing silicone in Keston?
Yes, Keston is within the area we cover. We work across London and the South East. You can phone 0345 464 0079 or email us and let us know what needs doing, and we’ll give you a clear price.
Can you reseal the base of a glass balustrade?
Yes, where the base is finished with sealant. Photos help us see what’s there.
Is the work guaranteed?
All our work has a 12-month guarantee, and we are fully insured.
How long will you be here?
Most jobs take a few hours, depending on how many joints need doing, including preparation and clearing up. We’ll confirm how long when we quote.
When is the sealant fully cured?
That depends on the sealant used, so please follow the time we give you.
Should I try DIY first?
For a simple, easy-to-reach joint, a careful DIYer can do a reasonable job. The usual mistakes are sealing over old sealant, sealing a damp joint and using too much.
What do you need from me for a quote?
A short description and the location, plus pictures if you have them. If we need more, we’ll ask.
What we do, step by step
Once we are on site, we check the joints match what you told us. If we find something unexpected, we talk it through with you first. Most jobs then take a few hours for most jobs. Many London jobs are in flats, so we come ready for stairs, narrow hallways and shared entrances. Mention any building rules, key holders or managing agents when you book.
- We find where water is getting in and check whether it’s a sealant joint.
- Old silicone is cut away from the glass and frame without scratching either.
- Surfaces are cleaned with a solvent suited to glass and the frame.
- We apply a neutral-cure glazing silicone and tool it smooth.
- The finished joints are checked and, where it’s safe, tested with water.
How to prepare
- Keep pets and children clear of the area while we work
- For indoor joints, keep the area dry beforehand if you can
- Let us know about earlier repairs to the joints
How to get a quote
Want a quote for glazing silicone? Please call 0345 464 0079 or send us an email with a few details. You will know what we plan to do, and what it will cost, before any work begins.
Related advice
How to look after the new joints
A little care helps the new joints last. We recommend:
- Squeegee the shower screen after each use
- Open vents or windows to let moisture out
- Keep harsh solvents off the silicone
- Check the silicone on glass every year or so
Keep conservatory gutters clear, so water drains away from the joints. Overflowing gutters can cause leaks of their own.
Act on black or lifting silicone early. Peeling silicone lets water in behind and the problem grows.