Greater London · England
Glazing Silicone in Riddlesdown
Glazing silicone for conservatories, rooflights, glass panels and shower screens in Riddlesdown, with a 12-month guarantee on every job. Call for a quick quote.
- Leaks where conservatory glass meets the frame
- Failed sealant around rooflight glass
- Stained, discoloured glazing silicone
Honest limits
To be straight with you, there are a few things sealant won’t fix:
- Glass that needs replacing
- Water coming through the roof rather than a sealant joint
- Misting between the panes of a double-glazed unit (a failed unit for a glazier)
If you are not sure, just ring 0345 464 0079 or drop us an email and we will give you a straight answer.
Joints and surfaces we work on
- Glass balustrade bases
- Shower screens
- Glass-to-frame joints
- Rooflights
- Conservatory frames
- Glass-to-glass joints
How we handle glazing silicone in Riddlesdown
Glass and frames expand and contract differently, and the silicone between them takes the strain. Once it splits or comes away, water finds a way through. We replace it with a glazing silicone that suits the glass and frame. We’re often asked to deal with water tracking down the inner face of the glass and glazing silicone that has cracked or come away, across conservatory frames, glass-to-glass joints and glass-to-frame joints.
London homes have every kind of window, from timber sashes in period terraces to aluminium and uPVC in newer blocks. The mastic around them dries out and cracks with age, which is when draughts and damp patches appear in homes in Riddlesdown.
Big or small, you get the same 12-month guarantee in Riddlesdown and across Greater London.
- Location
- Riddlesdown (CR8, CR2)
- Region
- Greater London
- Guarantee
- 12 months on all our work
- Quote
- A clear quote up front
- Phone
- 0345 464 0079
- Updated
- 26 October 2026
Can I do it myself?
If you are set on DIY, put the effort into preparation: remove every trace of old sealant, clean and dry the joint, and follow the product’s cure time. If it doesn’t work out, we can still put it right.
The difference is mostly in the preparation and the product. Joints are cleaned back to sound surfaces and dried, and the sealant is matched to the joint and its conditions.
How the visit works
Every visit runs the same way: we look at the joints together, protect the area around them, do the work and clear up. It generally takes anything from an hour or two to most of a day, depending on the size of the job. In Riddlesdown, flats, stairs and shared entrances are part of the routine. If the building has a concierge, managing agent or access rules, tell us when you book.
- First we agree the joints to be done.
- Old sealant is removed from the glass and frame.
- The surfaces are cleaned with a suitable solvent.
- We apply and tool the new silicone.
- The joints are checked before we leave.
Before we arrive
- Where the joints are inside, avoid wetting them before we arrive
- Let us know about stairs, lifts or work at height
- Let us know if you’ve seen damp or leaks
How to get a quote
For glazing silicone in Riddlesdown, phone 0345 464 0079 or send us an email. A short description of the job and where it is helps us quote, and we will agree the price before any work begins.
Related advice
Your questions about glazing silicone in Riddlesdown
Can parking be tricky for a visit in Riddlesdown?
In much of London, parking needs planning: a visitor permit or a nearby bay makes the day run more smoothly, so mention what’s available when you book.
Is Riddlesdown in your area for glazing silicone?
Yes. Our work covers London and the South East, and Riddlesdown is part of that. You can call 0345 464 0079 or drop us an email and let us know what needs doing.
Can you fix a leaking conservatory?
Often, if the leak is at a sealant joint. We find where the water gets in first before any sealing.
Will there be a smell?
Sometimes, a little. It fades as the sealant cures.
Where are you based?
Mr Mastic is based in Crawley. Our applicators cover Riddlesdown, along with the rest of our area.
How do I get a quote for glazing silicone in Riddlesdown?
Every job is different, so each one gets its own quote. For a quick quote, ring 0345 464 0079 or drop us an email and tell us what needs doing and where.
Can you just put new silicone over the old?
Silicone does not stick to silicone, so a top-up soon lets water through. The old bead always comes out first.
Which products do you use?
The product depends on the job: anti-fungal sanitary silicone in wet areas, and other sealants where joints move or face the weather. Brands we use include Arbo and Everbuild.
Places near Riddlesdown
Other services in Riddlesdown
Aftercare tips
To keep the joints looking good and working properly:
- Wipe the screen down after showering
- Check the gutters above the glazing for debris
- Do not use a blade near the sealant
- Avoid strong solvents on or near the sealant
Clear the conservatory gutters regularly, so water drains away from the joints. Overflowing gutters can cause leaks of their own.
Conservatory leaks rarely stay small. Water runs along frames and down walls, so get it looked at when you first see it.
What affects the cost of glazing silicone
You will get a clear quote before work begins. It takes into account:
- Working hours on commercial sites
- How many rooms, windows or areas are involved
- How easy the joints are to reach
- The number and length of the joints
Commercial jobs are quoted on the same basis as homes: the amount of work, the access and the products needed, along with when we can work on site. Call for a quick quote and we will explain what it covers.
Asking for a quote
What to tell us when you ask for a quote:
- The problem you’ve noticed
- A few photos by email, if you can
- The address or postcode of the job
- Any previous sealing or DIY work
For a quick quote, get us on the phone, or email us if that’s easier. Describe what needs sealing and we will explain what’s involved.
Different surfaces, different methods
Conservatory frames
Exposed frame joints wear with the weather. 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.
Why act early in Riddlesdown
A quick bead over the old sealant might stop a drip for a while, but new silicone will not bond to old, and the leak generally returns. Cutting out and resealing properly lasts. 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 each one gets its own quote. Size, access and the product the joint needs all play a part.
Why Riddlesdown customers choose us
- Any old sealant cut out fully, not covered over
- Anti-fungal silicone where joints get wet
- A 12-month guarantee on all work
- ARBOMaster approved applicator
See how sealant jobs are priced and our reviews.
Glazing silicone in Riddlesdown: local notes
Historic houses like Addington Palace (about 3 miles north-east) are a reminder that the area around Riddlesdown 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. London and the South East are among the drier parts of the UK, yet outdoor joints still have to be sealed dry, so jobs are booked with the weather in mind.
Riddlesdown is in London, so parking needs planning: tell us about permits, visitor bays or off-street space when you book. Letting a property close to Riddlesdown station? Then leaking glazing joints, shower screens or conservatory seals are worth sorting between tenancies. For site and facilities teams at buildings such as Harris Primary Academy Kenley, its window and door frames need their mastic kept sound, just like a home’s.
Riddlesdown is about 1 mile east of Purley, in Greater London. We carry out glazing silicone for homeowners, landlords and businesses in Riddlesdown and the surrounding area, as part of our work across Greater London. Riddlesdown is one of 764 places in Greater London where we work for glazing silicone. For nearby work, see our London page, about 12 miles away.
Here we cover the CR8 and CR2 postcode area for glazing silicone. Whether your property is on Hyde Road, Lower Road and Famet Avenue or anywhere close by, we can help. Main roads around Riddlesdown include the A22. Nearby, we also carry out glazing silicone in Kenley (1 mile south), Sanderstead (1 mile north-east), South Croydon (2 miles north), Hamsey Green (2 miles south-east) and Whyteleafe (2 miles south). Within a short drive, we also cover London (12 miles north), City of Westminster (13 miles north), Marylebone (13 miles north), Kensington (13 miles north), St Pancras (14 miles north) and Shoreditch (13 miles north).
Landmarks near Riddlesdown
In Riddlesdown, that means homes and buildings near Riddlesdown Collegiate and Dollypers Hill, among other places. There’s a railway station in Riddlesdown itself: Riddlesdown station. Other landmarks nearby include Croydon Airport Visitor Centre (2 miles north-west) and Purley War Memorial Hospital (1 mile north-west). Not far away are Duppas Hill and Foxley Wood.