Greater London · England
South Wimbledon Glazing Silicone
Glazing silicone across South Wimbledon and nearby, with old sealant always removed completely and a one-year guarantee.
- Shower screens leaking along the wall or tray
- New silicone smeared over old sealant
- Mouldy sealant around glass panels
Glazing silicone in South Wimbledon, done properly
We do not replace glass and a misted double-glazed unit needs a glazier. What we do is the silicone around the glass and that’s often where the water gets in. Common call-outs are for drips on the inside of a conservatory window and silicone pulling away from the glass, on glass-to-frame joints, glass balustrade bases and shower screens.
London has a lot of flats and conversions, where windows are often on upper floors. In a converted house or block, the lease generally says who is responsible for the windows, so it’s worth checking before booking.
Our work is backed for twelve months, in South Wimbledon and everywhere else we cover.
- Location
- South Wimbledon (SW19, SW20, SW17)
- Wider area
- Greater London
- Guarantee
- 12 months on all our work
- Price
- A clear quote up front
- Call
- 0345 464 0079
- Page updated
- 26 October 2026
How we quote for glazing silicone
Some jobs are bigger than they look, and some smaller. What affects the quote:
- The type of sealant required
- The number and length of the joints
- How many rooms, windows or areas are involved
- When we can work, for business premises
What you pay reflects the work, not guesswork. That’s why we ask about the job first and agree the price before starting.
What we need to know
When you call or email, it’s useful to know:
- A few photos by email, if you can
- Whether it’s a home or a business
- What the problem is, such as mould, gaps, leaks or cracking
- The rough size of the job
Need a quote? Please call 0345 464 0079 or email us and tell us about the job. You will know what we plan to do, and what it will cost, before any work begins.
How to look after the new joints
To keep the joints looking good and working properly:
- Don’t leave a drip for the next storm
- Check the silicone on glass every year or so
- Stick to mild cleaners on glass
- Open vents or windows to let moisture out
Look over the glazing joints every year or so. Spotting a crack early means a simpler fix.
Do not leave lifting or mouldy silicone on glazing. Peeling silicone lets water in behind and the problem grows.
When to call us in South Wimbledon
Using a sealant not made for glass causes many failures. Some products do not bond well to glass and vinegar-smelling acetoxy silicone can attack some metals.
It’s worth asking for a quote if you see:
- Black or yellowed silicone on glass joints
- Leaking glazing joints on a rooflight
- Glazing silicone that has cracked or come away
- Failed joints on frameless glass
South Wimbledon is in London, so parking needs planning: tell us about permits, visitor bays or off-street space when you book.
What to look for in a quote
- Who does the work, and how experienced they are
- How long to leave it before use
- Which sealant they’ll use, and why
- Is VAT in the price?
Your questions about glazing silicone in South Wimbledon
Is parking a problem for a job in South Wimbledon?
Parking in South Wimbledon, as in most of London, takes a little planning: a visitor permit or a nearby bay makes the day run more smoothly.
Do you cover South Wimbledon for glazing silicone?
Yes, South Wimbledon is within the area we cover. We work across London and the South East. Just call 0345 464 0079 or email us with a few details of the job.
I rent my home. Can I book you?
Of course. Ask your landlord first, and we can send them the quote if that helps.
Where is Mr Mastic based?
Our base is in Crawley, West Sussex, and we work across South East England, London and Scotland.
Do I have to be there?
Access is agreed with you when the job is booked. For inside work, that normally means someone being in.
Is the work guaranteed?
You get our 12-month guarantee to every job we do.
How long does glazing silicone take?
A typical job takes a few hours, depending on how many joints need doing, including the preparation. Your quote will say how long we expect yours to take.
Will resealing stop my conservatory leaking?
In many cases, as long as sealant is the cause. We trace the leak first, so you know what you’re paying for.
Glazing silicone in South Wimbledon: local notes
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. In London conversions and blocks, the lease decides who is responsible for the frames, so it’s worth checking before booking.
For site and facilities teams at buildings such as Holy Trinity CofE Primary School, its window and door frames need their mastic kept sound, just like a home’s. Homes close to Holy Trinity include some older properties, and replacement windows fitted into old openings often leave uneven gaps that need backing and a flexible joint.
South Wimbledon is about 1 mile south-east of Wimbledon, in Greater London. Every kind of property in South Wimbledon is covered 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, South Wimbledon among them. Our London page covers work nearby (7 miles or so).
Jobs for glazing silicone in SW19, SW20 and SW17 is quoted and booked the same way as anywhere else. Whether your property is on Gap Road, Mina Road and York Road or anywhere close by, we can help. If you are just outside South Wimbledon, we cover Merton (1 mile south-east), Merton Abbey (1 mile south-east), Summerstown (1 mile north-east), Colliers Wood (1 mile east) and Tooting Bec (1 mile north-east). We also work in nearby towns such as London (7 miles north-east), City of Westminster (7 miles north), Marylebone (7 miles north), Kensington (6 miles north), St Pancras (8 miles north-east) and Shoreditch (9 miles north-east).
What’s near South Wimbledon
Typical jobs here are in homes near Wimbledon High School, Wibbas Down Inn and Willington School and the streets around them. There’s a railway station in South Wimbledon itself: Wimbledon station. Other landmarks nearby include Southside Wandsworth (2.4 miles north) and Wimbledon Museum (0.9 miles west). Green spaces nearby include Battersea Park Lake and Merton Park Green Walks.
Why act early in South Wimbledon
Replacing windows or a shower screen isn’t needed for a failed joint. If the glass and frame are sound, new silicone is often all it takes. 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.
Rather than a set price list, we look at what your job involves: the amount of work, the old material and the access. You will know the price before we begin.
Why South Wimbledon customers choose us
- Colour picked to suit the job
- 20+ years of sealant experience
- Full insurance on every job
- Anti-fungal sanitary silicone in wet areas
Read our cost guide and our reviews.
Landlords, agents and businesses in South Wimbledon
Mouldy or split sealant often shows up at the end of a tenancy, and it’s easy to sort out between tenants. Several properties can go on one quote.
Water getting past a failed joint can damage the building, which matters even more when someone else lives there. Keeping joints in good order is simple maintenance.
DIY sealant or a professional job?
Some jobs are best left to a professional: work at height, external movement joints, fire-rated sealant and large areas need the right product, the right access and the right method.
Sealing over old silicone is the commonest DIY error. New silicone will not bond to old, so it lifts and traps water and mould underneath. Everything old must be removed first.
Also near South Wimbledon
Other services in South Wimbledon
How the visit works
Before we leave, we go over the finished joints with you and tell you how long to leave it. The visit itself normally takes anything from an hour or two to most of a day, depending on the size of the job, depending on the size of the job. Parking in much of London is by permit or pay-and-display, so it helps to know what’s near you in South Wimbledon. A visitor permit or a nearby bay makes the visit run more smoothly.
- 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.
- The glass and frame are cleaned and degreased.
- Glazing silicone suited to the joint is applied and tooled.
- We look over every joint and, where we can, test it with water.
Before we arrive
- Let us know about earlier repairs to the joints
- Keep children and pets away from the work area
- Let us know about stairs, lifts or work at height
How to get a quote
Asking for a quote is easy: tell us what needs doing and where. A few pictures by email make the job easier to understand, and we will come back to you with a quote.