Greater London · England
Glazing & conservatory sealant in Edmonton, Greater London
Glazing silicone for conservatories, rooflights, glass panels and shower screens in Edmonton, with a 12-month guarantee on every job. Call for a quick quote.
- Leaking glazing joints on a rooflight
- Split or lifting silicone on glass
- Leaks from the base of a shower screen
What glazing silicone looks like in Edmonton
In a converted house or block, who looks after the windows depends on the lease, so it’s worth checking before booking. Historic houses like Bruce Castle (about 1.8 miles south) are a reminder that the area around Edmonton has older buildings as well as new. Where a home is older, older timber frames in brick or stone need a different approach from a modern uPVC window.
Homes close to All Saints' Church include some older properties, and replacement windows fitted into old openings often leave uneven gaps that need backing and a flexible joint. If you let a flat or house near Edmonton Green station, glazing joints are worth checking at the end of a tenancy, before a small leak grows.
Edmonton is about 9 miles north-east of City of Westminster, in Greater London. Jobs in Edmonton get the same care as everywhere else we work: the old material taken out, joints prepared properly and a 12-month guarantee. Across Greater London, we cover 764 places, Edmonton among them. We also work in London, about 9 miles from Edmonton.
Work in N9, N18, N13 and EN1 works the same way as everywhere else we cover. If you need glazing silicone at a property on The Broadway, Plevna Road and Galahad Road or a nearby road, we can help. With the B137 and B154 close by, Edmonton is simple for us to get to. If you’re just outside Edmonton, we cover Upper Edmonton (1 mile south), Picketts Lock (1 mile east), Northumberland Park (1 mile south), Ponders End (1 mile north-east) and Bush Hill Park (1 mile north-west). Within a short drive, we also cover London (9 miles south), City of Westminster (9 miles south-west), Marylebone (8 miles south-west), Kensington (10 miles south-west), St Pancras (7 miles south) and Shoreditch (7 miles south).
Near you in Edmonton
Typical jobs here are in homes near NiW Furniture pub, The Latymer School and Starks Field School. There’s a railway station in Edmonton itself: Edmonton Green station. A little further out are Edmonton Green Shopping Centre (less than half a mile north-east) and North Middlesex University Hospital (1 mile south-west). The countryside around Edmonton includes Highams Park Lake and Ainslie Wood.
Glazing silicone in Edmonton
Glazing silicone that has yellowed, blackened or come away spoils the look and lets water in. It comes off cleanly, without marking the glass before the new bead goes in. We work on glass-to-glass joints, glass-to-frame joints and shower screens, and common reasons people get in touch are silicone pulling away from the glass and sealant that was laid over old silicone and failed.
From mansion-block windows to modern glazing in new flats, London has every kind of frame. Over the years, the sealant around them shrinks, cracks and pulls away, letting in draughts and water.
Big or small, you get the same one-year guarantee.
- Location
- Edmonton (N9, N18, N13, EN1)
- Wider area
- Greater London
- Cover
- A year, on every job
- Quote
- Quoted before any work starts
- Telephone
- 0345 464 0079
- Page updated
- 26 October 2026

Questions from Edmonton
I let a flat near Edmonton Green station. Can you help?
Yes, rental work is part of what we do. Just phone 0345 464 0079 or email us and tell us about the property, and we’ll give you a clear quote.
Is parking a problem for a job in Edmonton?
Parking in Edmonton, as in most of London, takes a little planning: a visitor permit or a nearby bay makes the day run more smoothly, so mention what’s available when you book.
How do I get a quote for glazing silicone in Edmonton?
Size, access and the old material all affect the cost. Call for a quick quote and we will talk you through it.
Can you fix a leaking conservatory?
Often, if the leak is at a sealant joint. We find where the water gets in first, so you know what you’re paying for.
Do you guarantee glazing sealant work?
You get our 12-month guarantee to every job we do.
Do you fit new glass or sealed units?
No, our work is the silicone. Glass and sealed units need a glazier.
Where is Mr Mastic based?
Our base is Crawley, with over 20 years’ experience. We work across South East England, London and Scotland.
Do the sealants smell?
It depends on the product. Some smell for a while, some hardly at all, and any smell fades as they cure.
Why act early in Edmonton
A leaking joint won’t fix itself. Left, water can mark floors, damage plaster and rot timber, so it pays to deal with it early. 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.
Instead of a standard rate, 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 choose Mr Mastic in Edmonton
- Arbo and Everbuild products
- Full insurance on every job
- ARBOMaster approved applicator
- We never seal over old sealant
How we quote for glazing silicone
For a quick quote, just ask. The main things that affect it are:
- Whether the work is at height
- The number and length of the joints
- Any working-time requirements on site
- Mould in or behind the old joints
We do not show prices on the website, because the cost depends so much on the job itself. Call for a quick quote and we will talk you through it.
What we need to know
When you call or email, these details help:
- The problem you’ve noticed
- Whether it has been sealed before
- Photos by email, if that’s easy
- Any access issues, like height or stairs
There’s no standard price list, because every job is different. Instead, your job gets its own clear quote. To get started, ring 0345 464 0079 or send us an email.
Also near Edmonton
More services for Edmonton
Do you need glazing silicone in Edmonton?
Dirt and grease stop silicone sticking. Where the joint wasn’t cleaned and degreased, the bead can peel away early.
The problems people generally mention when they call include:
- Water tracking down the inner face of the glass
- Leaks where conservatory glass meets the frame
- Split or lifting silicone on glass
- Failed sealant around rooflight glass
Schools such as Brettenham Primary School are buildings too, and the mastic around its windows and doors needs looking after like any other building’s.
Questions to ask before booking
- What guarantee comes with the work
- When the joint can take water or movement
- Whether all the old sealant comes out first
- How the colour is chosen
How the visit works
On the day, there’s very little for you to do. Point us to the joints and we will get on with it. The work itself takes a few hours for most jobs from start to finish. In Edmonton, flats, stairs and shared entrances are part of the routine. 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.
- The glass and frame are cleaned and degreased.
- 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
- For indoor joints, keep the area dry beforehand if you can
- Mention if the joints have been sealed before
- For business premises, tell us about site rules or sign-in
How to get a quote
We quote each job on its own, so start by telling us what you need. Just ring 0345 464 0079 or drop us an email with the details and send photos if you have them.
Advice
Should I try it myself first?
Some sealant jobs are within reach of a careful DIYer, like a short, easy-to-reach joint indoors. Where it goes wrong is sealing over the old bead, working on a wet joint or overloading the gap.
The difference is mostly in the preparation and the product. We take joints back to clean, dry surfaces, and the sealant is matched to the joint and its conditions, and the work is guaranteed for a year.
How the job changes by surface
Rooflights
A rooflight faces rain and sun from above. The sealant around the glass and frame wears faster than most.
Glass-to-frame joints
Silicone at the glass edge seals it into the frame. When it splits, water can get into the frame.
For landlords and businesses
We also work for property managers and facilities teams in Edmonton and across Greater London. We can quote a run of properties together, and we are fully insured for the work.
Failed sealant is one of the commonest items on a check-out report, and it’s quick to put right between tenancies. Several properties can go on one quote.
