Greater London · England

Glazing Silicone in Mildmay

Glazing silicone in Mildmay from a team with over 20 years’ experience. 180+ five-star Google reviews and a 4.9 rating.

  • Water getting into a conservatory at the joints
  • Black or yellowed silicone on glass joints
  • Split or lifting silicone on glass

Trusted glazing silicone in Mildmay

What the job involves on each surface

Glass balustrade bases

Glass balustrades sit in a channel that is often finished with sealant. When it fails, water can sit in the channel.

Glass-to-frame joints

The sealant must stick to glass and frame alike. We choose a product that suits both.

Glazing silicone in Mildmay, done properly

Across Mildmay, we reseal glazing joints in homes, offices and hotels. From conservatories to shower screens, it’s the same careful method. Typical jobs include a quick top-up bead that didn’t last and leaks where conservatory glass meets the frame, on rooflights, glass-to-frame joints and glass balustrade bases.

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.

Each job carries a 12-month guarantee, large or small.

Location
Mildmay (N1, N16, E8)
Region
Greater London
Cover
One year on every job
Quote
A clear price before work begins
Call
0345 464 0079
Last updated
26 October 2026
Close-up of hands using a sealant gun on the joint between a glass shower screen and tiles

What we are called out for in Mildmay

Sunlight breaks sealant down, especially on conservatory roofs. Old silicone hardens, cracks and loses its grip on the glass.

Common reasons people contact us include:

  • Drips on the inside of a conservatory window
  • Leaks where conservatory glass meets the frame
  • Split or lifting silicone on glass
  • Shower screens leaking along the wall or tray

Homes close to Church of St Jude and St Paul include some older properties, and the joint between an old wall and a newer frame is usually the first place rain gets in.

What your quote should include

  • How the surfaces are prepared before sealing
  • What happens if they find a problem under the old sealant
  • What guarantee comes with the work
  • Whether all the old sealant comes out first

Our hiring checklist

Landlords, agents and businesses in Mildmay

We work for letting agents and landlords as well as homeowners. Sealant work between tenants is a simple way to keep a property in good order.

From a single let to a portfolio, you get the same standard of work: old sealant fully removed, joints prepared properly and a one-year guarantee.

Glazing silicone in Mildmay: local notes

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. In London conversions and blocks, the lease decides who is responsible for the frames, so check that before booking.

Managing a site like Newington Green Primary School? Then larger buildings have plenty of frames, and the mastic around each one ages. Mildmay is in London, so parking needs planning: tell us about permits, visitor bays or off-street space when you book.

Mildmay is about 1 mile north of Hoxton, in Greater London. Every kind of property in Mildmay is covered for glazing silicone, old or new, large or small. Every job comes with our 12-month guarantee. Our area takes in 764 places across Greater London, large and small.

Jobs for glazing silicone in N1, N16 and E8 works the same way as everywhere else we cover. Whether your property is on Dove Road, Essex Road and Burma Road or anywhere close by, we can help. With the A1199 close by, Mildmay is simple for us to get to. Close by, we work in Newington Green (1 mile north), De Beauvoir Town (1 mile south), Canonbury (1 mile south-west), Kingsland (1 mile south-east) and Highbury (1 mile west). Within a short drive, we also cover London (3 miles south), City of Westminster (4 miles south-west), Marylebone (3 miles south-west), Kensington (6 miles south-west), Walthamstow (4 miles north-east) and Hampstead (4 miles west).

Around Mildmay

We work in homes and buildings around City of London Academy Highbury Grove, Highbury Fields and Army and Navy pub, among other places. There’s a railway station in Mildmay itself: Dalston Kingsland station. Nearby you’ll also find Clowns Gallery-Museum (0.6 miles south-east) and Hackney Walk (1.5 miles east). For a walk, there’s Gillespie Park and Ludgate Hill.

Map of Mildmay © OpenStreetMap contributors

What we do, step by step

At the end, we look at the finished work together. The visit itself generally takes a few hours, depending on how many joints need doing, depending on the size of the job. For a job in Mildmay, parking and access are the things to plan: let us know about parking, the floor we’ll be working on and any lift or shared entrance.

  1. First, we trace the leak and check it’s coming through a sealant joint.
  2. Old silicone is cut away from the glass and frame without scratching either.
  3. Surfaces are cleaned with a solvent suited to glass and the frame.
  4. Glazing silicone suited to the joint is applied and tooled.
  5. We look over every joint and, where we can, test it with water.

Getting ready for the visit

  • Clear the area around the work
  • Tell us about any water getting in
  • Mention any parking rules near the property

Getting a quote

It all starts with a short chat. Describe the problem, the location and the size of the job, and we will explain how we’d tackle it. Whenever you are ready, ring 0345 464 0079 or email us.

Get a quick quote

Read more

Why deal with it now?

A leaking joint will not fix itself. Left, water can mark floors, damage plaster and rot timber, so it pays to deal with it early. In a London flat, a failed joint rarely stays your problem alone: water can reach the neighbours below, and gaps in fire-rated joints affect the whole building.

Rather than a set price list, we price the job in front of us: how many joints, what’s in them now and how we reach them. You will know the price before we begin.

Why Mildmay clients choose us

  • Quality sealants from Arbo and Everbuild
  • A 12-month guarantee on all work
  • Sealant colour chosen to suit
  • White, clear, grey or coloured to suit, where the product allows

See our cost guide and our reviews.

Aftercare tips

Aftercare is simple, and it makes a real difference:

  • Use a gentle glass cleaner and a soft cloth
  • Get a new leak looked at quickly
  • Clear the conservatory gutters regularly
  • Keep air moving in the conservatory

Squeegee a shower screen after each shower and keep the room ventilated. It helps stop mould getting into the silicone.

Cracked glazing silicone means the joint has failed. Resealing now is a small job, compared with repairing damaged frames or plaster.

Honest limits

Before you book, it’s worth knowing the limits too:

  • Frames that have decayed or split
  • Glass that needs replacing
  • Misting between the panes of a double-glazed unit (a failed unit for a glazier)

If you’re not sure, just ring 0345 464 0079 or drop us an email and we will give you a straight answer.

What we seal

  • Rooflights
  • Shower screens
  • Glass balustrade bases
  • Conservatory frames
  • Glass-to-frame joints
  • Glass-to-glass joints

Common questions in Mildmay

Is Mildmay in your area for glazing silicone?

Yes, Mildmay 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.

Is parking a problem for a job in Mildmay?

London parking needs a little planning, so let us know about permits, bays or a driveway when you book. That way the visit can be planned around it.

How long does glazing silicone take?

A typical job takes a few hours for most jobs, including the preparation. Your quote will say how long we expect yours to take.

Do the sealants smell?

Possibly a little. Any smell clears as the sealant cures.

How much does glazing silicone cost in Mildmay?

Size, access and the old material all affect the cost. Call for a quick quote and we will talk you through it.

Is it possible to redo the silicone on a shower screen?

We can. The old bead comes off without marking the glass, and the joints are cleaned and resealed.

Can a conservatory leak be sealed?

Often, if the leak is at a sealant joint. We trace the leak first, so you know what you’re paying for.

Will it make a mess?

Tidy work is part of the job. Nearby surfaces are protected, and the area is left clean when we finish.

20+ yearsMastic and sealant specialists
ARBOMaster approvedApproved applicator for Arbo sealants
Fully insuredDomestic, commercial and hotels
One-year guaranteeOn every job