Greater London · England
Glazing & conservatory sealant in Hackney, Greater London
Glazing silicone for Hackney and the surrounding area: careful preparation, the right product and tidy work. Call for a quick quote.
- Mouldy sealant around glass panels
- Drips on the inside of a conservatory window
- Water getting into a conservatory at the joints
Aftercare tips
So the new joints stay in good condition:
- Wipe the screen down after showering
- Use a gentle glass cleaner and a soft cloth
- Clear the conservatory gutters regularly
- Open vents or windows to let moisture out
Check the joints once a year. Spotting a crack early means a simpler fix, before water gets in.
If silicone on glass has cracked, water is already getting in. Renewing it early keeps it simple, compared with repairing damaged frames or plaster.
Glazing silicone for homes and businesses in Hackney
We renew glazing silicone on conservatories, rooflights and glass panels, as well as frameless shower screens and glass balustrade bases. Each joint is cut out, cleaned and resealed. We are often asked to deal with drips on the inside of a conservatory window and conservatory leaks at frame and glazing joints, on glass-to-glass joints, rooflights and glass balustrade bases.
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.
We stand behind the work with a 12-month guarantee, so you’re not left on your own once the job is done.
- Place
- Hackney (E9, E8, E3, E5)
- Wider area
- Greater London
- Guarantee
- One year on every job
- Quote
- A clear price before any work starts
- Call
- 0345 464 0079
- Updated
- 26 October 2026
Nearby places to Hackney
More services for Hackney
How the visit works
The work is kept neat and contained to the area we are working on. Expect the work to take anything from an hour or two to most of a day, depending on the size of the job, and we explain the cure time before we leave. In Hackney, 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.
- We start by finding the leak and making sure sealant is the cause.
- The old sealant is removed from the glass and frame without scratching them.
- Surfaces are cleaned with a solvent suited to glass and the frame.
- We apply a neutral-cure glazing silicone and tool it smooth.
- We check the joints and, where safe, run water over them.
Before we arrive
- Mention any tricky access
- Let us know about earlier repairs to the joints
- Let us know about parking restrictions
Ask for a quote
For a quick quote, get us on the phone, or send an email if you’d rather. Describe what needs sealing and we will explain what’s involved and send you a clear quote.
Related advice
Hackney questions
Can you do glazing silicone in Hackney?
Yes. Our work covers London and the South East, and Hackney is part of that. Just phone 0345 464 0079 or email us with a few details of the job.
Can parking be tricky for a visit in Hackney?
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.
Can a conservatory leak be sealed?
In many cases, as long as sealant is the cause. We find where the water gets in first before any sealing.
Will there be a smell?
That depends on the sealant. Some smell for a while, some hardly at all.
Are you an approved applicator?
Yes. We’re an ARBOMaster approved applicator.
Should I try DIY first?
It depends on the job. High-level, external movement and fire-rated joints are professional jobs.
Where is Mr Mastic based?
Mr Mastic is based in Crawley. We cover Hackney and the rest of Greater London.
What sealant do you use?
Products from Arbo and Everbuild, among others, picked for each joint. We will tell you what we are using and why.
DIY sealant or a professional job?
Some jobs are best left to a professional: high-level joints, fire-rated gaps, external movement joints and big jobs call for the right materials, safe access and experience.
A careful DIYer can reseal a simple joint, like a short, easy-to-reach joint indoors. The common mistakes are sealing over old sealant, sealing a damp joint and using far too much.
Hackney homes and the weather
Historic houses like Sutton House (about 0.3 miles north-west) are a reminder that the area around Hackney 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. Rainfall in the South East is lower than in much of the UK, though outdoor sealant still has to go onto a dry joint, so the forecast decides the day.
If you look after a building such as Berger Primary School, the mastic around its windows and doors needs looking after like any other building’s. Hackney is in London, so parking needs planning: tell us about permits, visitor bays or off-street space when you book.
Hackney is about 4 miles north-east of London, in Greater London. Homes, rented property, offices and hotels in Hackney can book us for glazing silicone. The work is guaranteed for a year. Across Greater London, we cover 764 places, and Hackney is one of them.
All of E9, E8, E3 and E5 is covered for glazing silicone, from the main roads to the quietest streets. You will find streets such as Homerton High Street, Primrose Square and St John's Church Road, and we cover them all. Being close to the A107 and B113, Hackney is easy for our applicators to reach. We also cover the places around Hackney: Homerton (1 mile north), Lower Clapton (1 mile north), Hackney Central (1 mile west), London Fields (1 mile south-west) and Cambridge Heath (1 mile south-west). Further out, we also cover London (4 miles south-west), City of Westminster (5 miles south-west), Marylebone (5 miles south-west), Kensington (7 miles south-west), St Pancras (3 miles west) and Walthamstow (3 miles north).
What’s near Hackney
Typical jobs here are in homes near The Urswick School, Clapton Park and Chesham Arms, among other places. Hackney has its own railway station: Homerton station. Nearby you’ll also find Hackney Walk (within half a mile north-west) and Cell Project Space (0.9 miles south-west). The countryside around Hackney includes Tower Hill and Old Ford Island.
What sealant work cannot fix
Some problems need a builder, plumber or other trade rather than us:
- A sealed unit that has misted inside
- Glass that needs replacing
- Rotten or badly damaged frames
If you are not sure, just ring 0345 464 0079 or send us an email and we will give you a straight answer before you book.
Where we work in Hackney
- Shower screens
- Glass balustrade bases
- Glass-to-glass joints
- Rooflights
- Conservatory frames
- Glass-to-frame joints
Landlords, agents and businesses in Hackney
A neglected joint can let water reach the structure, which matters even more when someone else lives there. Resealing at the right time is simple maintenance that we can handle for you.
Mouldy or split sealant often shows up at the end of a tenancy. Several properties can go on one quote.
How we quote for glazing silicone
The price is agreed before any work begins. It’s based on:
- Any mould that needs treating
- How much old sealant there is and how hard it is to remove
- How many areas need sealing
- Whether the work is at height
Commercial jobs are quoted on the same basis as homes: how much there is to do, how we reach it and what it needs, along with when we can work on site. Ask us for a quote and we will go through it with you.
Asking for a quote
To help us quote quickly, please include:
- What’s wrong with the joints now
- How many joints, rooms or windows are involved
- The address or postcode of the job
- How we’d reach the joints
Asking for a quote is easy: let us know what needs doing and where and its rough size. Photos by email help us understand the job, and we will take it from there.
Signs you need glazing silicone in Hackney
The wrong sealant is a common cause. Not every silicone sticks properly to glass, and acetoxy types can attack some frame materials.
If you can see any of these, it’s time to have the joints looked at:
- Leaking glazing joints on a rooflight
- Water running down inside the glass
- Shower screens leaking along the wall or tray
- New silicone smeared over old sealant
Homes close to Church of St Luke include some older properties, and replacement windows fitted into old openings often leave uneven gaps that need backing and a flexible joint.
Questions to ask before booking
- Whether all the old sealant comes out first
- How long the guarantee is
- Which colour the sealant will be
- Who turns up on the day