Greater London · England

St Ann's Glazing Silicone

Glazing silicone for conservatories, rooflights, glass panels and shower screens for homes and businesses in St Ann's and across Greater London. ARBOMaster approved applicators, fully insured, with a one-year guarantee.

  • Rooflight joints letting water in
  • New silicone smeared over old sealant
  • Shower screens leaking along the wall or tray

Trusted glazing silicone in St Ann's

Glazing silicone for homes and businesses in St Ann's

Glazing joints need a sealant made for glass. We use a neutral-cure glazing silicone that’s suited to glass and the frame, finished with a neat, even bead. We are often asked to deal with water escaping where a screen meets the wall and leaking glazing joints on a rooflight, on rooflights, glass-to-frame joints and glass-to-glass 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 St Ann's.

All of our work is guaranteed for twelve months.

Place
St Ann's (N15, N4, N16)
Wider area
Greater London
Guarantee
One year on every job
Quotes
A clear quote up front
Call
0345 464 0079
Updated
26 October 2026
Sealant gun close-up on a shower enclosure wall joint

Leave it or put it right?

Topping up old silicone can look like a fix, but new silicone won’t bond to old, and the leak usually returns. Cutting out and resealing properly lasts. In a flat in St Ann's, failed sealant seldom stays inside your own four walls: water can reach the neighbours below, and gaps in fire-rated joints affect the whole building.

What you pay reflects the work, not guesswork. That’s why we ask about the job first and send you a clear quote before we start.

Why us?

  • 4.9 on Google from 180+ five-star reviews
  • Colour agreed with you before any work starts
  • A sealant colour to suit the surroundings
  • 12-month guarantee on every job

Take a look at what affects the cost or our reviews.

Quotes for glazing silicone in St Ann's

We do not publish a price list, because no two jobs are the same. What we look at:

  • Whether there’s mould to deal with
  • Which sealant suits the joint
  • The old material and how stubborn it is
  • The number of rooms or windows

Rather than a set price list, we price the job in front of us: the amount of work, the old material and the access. The price is agreed before we begin.

Helping us quote

To make quoting easier, please include:

  • Photos by email, if that is easy
  • Roughly how big the job is
  • The problem you’ve noticed
  • Whether it’s a home or a business

Want a quote for glazing silicone? Please call 0345 464 0079 or email us with a few details. We will explain what we’d do and give you a clear price before work begins.

What glazing silicone looks like in St Ann's

The South East is one of the drier parts of the UK, yet outdoor joints still have to be sealed dry, so jobs are booked with the weather in mind. Historic houses like Bruce Castle (about 1.3 miles north) are a reminder that the area around St Ann's 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.

For landlords with property near Seven Sisters station, glazing joints are worth checking at the end of a tenancy, before a small leak grows. For an older house near a landmark such as St Ann's Church, the joint between an old wall and a newer frame is usually the first place rain gets in.

St Ann's is about 2 miles north-west of West Hackney, in Greater London. Homes, rented property, offices and hotels in St Ann's can book us for glazing silicone. Every job comes with our 12-month guarantee. St Ann's is one of 764 places in Greater London where we work. There’s also a page for London, about 6 miles away.

All of N15, N4 and N16 is covered for glazing silicone. If you need glazing silicone at a property on Ida Road, Elmar Road and Grove Road or anywhere close by, our applicators can take on the job. Close by, we work in West Green (1 mile north-west), Seven Sisters (1 mile east), South Tottenham (1 mile east), Harringay (1 mile west) and Tottenham Green (1 mile north-east). Larger places within reach include London (6 miles south), City of Westminster (5 miles south-west), Marylebone (5 miles south-west), Kensington (8 miles south-west), St Pancras (4 miles south) and Shoreditch (4 miles south).

Local landmarks in St Ann's

We work in homes and buildings around Church of St Andrew, No.8 Seven Sisters pub and Moselle Upper School and the streets around them. Nearby too are Chestnuts Park (within half a mile west) and Park View School (0.5 miles north-west). St Ann's has its own railway station: Seven Sisters station. Other landmarks nearby include City of London Maternity Hospital (1.7 miles south-west) and The Mall Wood Green (1.4 miles north-west). For a walk, there’s Railway Fields and Hollow Pond.

Map of St Ann's © OpenStreetMap contributors

The process

When we get to you, we check the joints match what you told us. If anything is different, we explain it before carrying on. After that, the work takes anything from an hour or two to most of a day, depending on the size of the job. In a London area like St Ann's, the main things to plan are parking and access: tell us about permits, visitor bays or off-street space, which floor we’re working on and whether there’s a lift.

  1. We start by finding the leak and making sure sealant is the cause.
  2. We cut out the failed silicone, taking care of the glass and frame.
  3. The glass and frame are cleaned and degreased.
  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.

Before we arrive

  • Tell us about access, such as stairs, a lift or high-level joints
  • Clear the area around the work
  • Tell us about any previous sealing or DIY attempts

Ask for a quote

There’s no standard price list. Instead, we send you a clear quote for your job. To arrange one, ring 0345 464 0079 or send us an email.

Get a price

Read more

Work for landlords, hotels and businesses

Letting agents and landlords in St Ann's can book us as well as homeowners. Resealing between tenancies is a simple way to keep a property in good order before the next move-in.

If you manage several properties in or around St Ann's, jobs at different addresses can be quoted together. Just tell us the addresses and what each one needs, and pictures by email help.

Honest limits

New sealant cannot fix everything, and we’ll tell you before any work starts. It will not solve:

  • Glass that needs replacing
  • Leaks from the roof covering or flashing (a roofer’s job)
  • Structural problems with a conservatory roof

If you’re not sure, just phone 0345 464 0079 or send us an email and we’ll give you a straight answer.

Joints and surfaces we work on

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

Do you need glazing silicone in St Ann's?

Sealant laid over old sealant doesn’t last. Many failed joints we see have been topped up rather than cut out leaving a path for water.

These are the problems we are asked about most:

  • Water tracking down the inner face of the glass
  • Leaking glazing joints on a rooflight
  • Leaks where conservatory glass meets the frame
  • Failed joints on frameless glass

As a London address, St Ann's can be tricky for parking: tell us about permits, visitor bays or off-street space when you book.

What your quote should include

  • Whether they seal over old material or remove it
  • How much experience the applicator has
  • What guarantee comes with the work
  • How hidden problems are handled

10 questions to ask before booking

Aftercare tips

So the new joints stay in good condition:

  • Look over the glazing joints once a year
  • Use gentle products around the joints
  • Act on drips or damp patches early
  • Don’t use a blade near the sealant

Gentle products are best near the sealant. Harsh solvents may damage the bead.

Don’t leave lifting or mouldy silicone on glazing. Once it starts to peel, water gets behind it and the problem grows.

Questions from St Ann's

Is St Ann's in your area for glazing silicone?

Yes. Our work covers London and the South East, and St Ann's is part of that. You can phone 0345 464 0079 or drop us an email and let us know what needs doing, and we’ll send you a clear quote.

I let a flat near Seven Sisters station. Can you help?

Yes, landlords and agents are among the people we work for. Just ring 0345 464 0079 or drop us an email with the address and what needs doing, and we will send you a clear quote.

Do the sealants smell?

Possibly a little. Any smell clears as the sealant cures, and ventilation helps.

How do I get a quote for glazing silicone in St Ann's?

We don’t publish prices, because the cost depends on the job: how much there is, what’s there now, how we reach it and what it needs. We agree the price before any work begins.

Do you take out the old sealant first?

Yes, always, and completely. New silicone doesn’t stick to old silicone, so the joint is cleaned back first.

How long should I leave it?

Many sealants skin over quickly but take longer to cure fully. We’ll give you the cure time for the product we used.

Why not top up the existing silicone?

A top-up rarely holds. The new bead cannot grip the old one so we take it all out and start clean.

What should I tell you?

The location, the problem and the rough size of the job. If you can, email a few photos.

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