Greater London · England
Purley Glazing Silicone
Glazing joints in Purley need attention? We remove the old material, prepare the joints and seal them properly.
- Cracked silicone between glass panels
- Shower screens leaking along the wall or tray
- Conservatory leaks at frame and glazing joints
Glazing silicone for homes and businesses in Purley
We work across Purley on glazing joints for homes and businesses. From conservatories to shower screens, it’s the same careful method, with a sealant chosen for the joint. If you’re dealing with sealant that was laid over old silicone and failed and cracked silicone between glass panels, we can help, on glass-to-glass joints, conservatory frames and rooflights alike.
London has a lot of flats and conversions, where windows are often on upper floors. Who looks after the outside of the frames can depend on the lease, so check that first, and access in Purley is something to talk through when you book.
Every job is covered by a one-year guarantee, wherever you are in Greater London.

- Where
- Purley (CR8, CR2, CR5)
- Wider area
- Greater London
- Guarantee
- One year on every job
- Price
- A clear price before we start
- Telephone
- 0345 464 0079
- Last updated
- 26 October 2026
Windows and doors in Purley
In a converted house or block, who looks after the windows depends on the lease, so check that before booking. Historic houses like Addington Palace (about 3.6 miles north-east) are a reminder that the area around Purley 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 is traditional sand mastic.
Managing a site like Christ Church CofE Primary School (Purley)? Then larger buildings have plenty of frames, and the mastic around each one ages. If you let a flat or house near Purley station, a shower screen or conservatory joint that leaks is easier to reseal while the property is empty.
Purley is about 2 miles south-west of Croydon, in Greater London. If you need glazing silicone in Purley, please ring 0345 464 0079 or email us for a quick quote. We are based in Crawley and cover Greater London, Purley included. Purley is one of 764 towns and villages in Greater London we cover. We also work in London, about 11 miles from Purley.
We work across the CR8, CR2 and CR5 postcode area for glazing silicone and the streets around it. Glazing silicone is available to properties on High Street, Church Road and Brighton Road. Main roads around Purley include the A2022, so getting to you is simple. We also cover the places around Purley: Peaks Hill (1 mile north-west), Woodcote (1 mile west), Russell Hill (1 mile north), Roundshaw (1 mile north-west) and Woodcote Green (1 mile west). We also work in nearby towns such as London (11 miles north), City of Westminster (12 miles north), Marylebone (13 miles north), Kensington (12 miles north), St Pancras (13 miles north) and Shoreditch (13 miles north).
What’s near Purley
Locally, jobs take us to homes and businesses close to The Jolly Farmers pub, Laleham Lea School and Thomas More Catholic School. There’s a railway station in Purley itself: Purley station. Other landmarks nearby include Purley War Memorial Hospital (within half a mile north-east) and St George's Walk (2.7 miles north). The countryside around Purley includes Duppas Hill and Foxley Wood.
Why it’s worth doing now in Purley
Glazing joints need a sealant made for the job. General-purpose sealant from a DIY shop may not suit glass or the frame so we choose a glazing silicone instead. In London conversions, one flat’s bathroom is often above another flat’s ceiling, so a small leak from tired sealant can mean a neighbour’s ceiling and a lot of disruption. Dealing with it early is far simpler.
Every job is a little different, so each one gets its own quote. Size, access and the product the joint needs all make a difference, and we will explain the quote if you ask.
Why us?
- Full insurance on every job
- Homes, businesses and hotels
- Neat joints and a tidy finish
- 4.9 on Google from 180+ five-star reviews
Questions from Purley
Do you work for landlords with property near Purley station?
Yes, we work for landlords and letting agents. Just ring 0345 464 0079 or send us an email and tell us about the property, and we will give you a clear quote.
Is parking a problem for a job in Purley?
London parking needs a little planning, so let us know about permits, bays or a driveway when you book. The visit is then planned around what’s available.
Is it possible to redo the silicone on a shower screen?
We can. We remove the old silicone carefully before cleaning and resealing.
Are you fully insured?
Yes. Mr Mastic is fully insured, and we’ve been doing sealant work for more than 20 years.
What information do you need?
Just the basics: the address or postcode, what’s wrong and any access issues. After that, simply phone 0345 464 0079 or email us.
Do I have to be there?
We need access to the joints, so we’ll agree that with you when we book. For inside work, that normally means someone being in.
Do you take out the old sealant first?
Yes. All of the old material is cut out and the joint cleaned before resealing.
How long before the joint can be used?
That depends on the sealant used, so follow the cure time we give you when we finish.
Landlords, agents and businesses in Purley
For anyone letting property in or around Purley, jobs at different addresses can be quoted together. Send us the addresses and the work at each, and pictures by email help.
We work for letting agents and landlords as well as householders. Sealant work between tenants keeps a property looking cared for.
Can I do it myself?
If you’ve already had a go yourself, that’s fine. We remove it and do the joint properly.
Sealing over old silicone is the commonest DIY error. New silicone won’t bond to old, so it lifts and traps water and mould underneath. Everything old must be removed first.
Aftercare tips
Looking after new joints is easy, and it makes a real difference:
- Use gentle products around the joints
- Check the silicone on glass every year or so
- Run a squeegee over the glass when you’re done
- Keep air moving in the conservatory
Gentle products are best near the sealant. Harsh solvents may damage the bead.
Do not leave lifting or mouldy silicone on glazing. Peeling silicone lets water in behind and the leak gets worse.
Signs you need glazing silicone in Purley
On shower screens, constant water and cleaning products wear silicone. Mould grows into the bead and the edges begin to peel.
Keep an eye out for any of the following:
- Stained, discoloured glazing silicone
- Silicone pulling away from the glass
- Drips on the inside of a conservatory window
- Leaking glazing joints on a rooflight
For an older house near a landmark such as St Swithun's, frames set in older brick or stone need a sealant that suits the wall as well as the frame.
Questions to ask before you book
- Who does the work, and how experienced they are
- Whether they seal over old material or remove it
- How the surfaces are prepared before sealing
- What product goes in the joint
What affects the cost of glazing silicone
There’s no set price list, because no two jobs are the same. What we look at:
- Access and height
- Whether old sealant or filler has to be cut out
- Whether there’s mould to deal with
- When we can work, for business premises
The cost reflects the work involved, not guesswork. That is why we ask a few questions first and agree the price before starting.
Asking for a quote
When you contact us, it’s useful to know:
- How we’d reach the joints
- What the problem is, such as mould, gaps, leaks or cracking
- Roughly how big the job is
- If someone has resealed it before
It all starts with a short chat. Describe the problem, the location and the size of the job. When it suits you, ring 0345 464 0079 or email us.
How the visit works
You do not need to clear the whole room or building before we come, just the space around the work. Everything nearby is protected, and the work takes a few hours for most jobs for a typical job. In Purley, as in most of London, parking needs a little planning. It helps if you can point us to a visitor permit or a bay close to the door.
- First, we trace the leak and check it’s coming through a sealant joint.
- The old sealant is removed from the glass and frame without scratching them.
- 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.
Getting ready for the visit
- Let us know if you’ve seen damp or leaks
- Let us know about parking restrictions
- Tell us about any previous sealing or DIY attempts
How to get a quote
Getting a quote is simple: let us know the job and the location. A few pictures by email make the job easier to understand, and we will take it from there.
