Greater London · England
Glazing & conservatory sealant in Holloway, Greater London
We cover Holloway for glazing silicone for conservatories, rooflights, glass panels and shower screens. Old sealant removed completely, joints prepared properly and every job guaranteed for a year.
- Cracked silicone between glass panels
- Conservatory leaks at frame and glazing joints
- Failed sealant around rooflight glass
DIY sealant or a professional job?
The biggest DIY mistake is sealing over old sealant. Silicone does not stick to old silicone, so it lifts and traps water and mould underneath. All the old material has to come out first.
If you’ve already had a go yourself, that’s fine. We remove it and do the joint properly, so just mention it when you contact us.
Glazing silicone in Holloway
Glass, frames and walls all move at different rates, and the silicone between them takes the strain. Once it splits or comes away, water finds a way through. We cut it out and reseal with a glazing silicone suited to the joint. If you’re dealing with failed joints on frameless glass and conservatory leaks at frame and glazing joints, we can put it right, whatever the surface.
From mansion-block windows to modern glazing in new flats, London has every kind of frame. The mastic around them dries out and cracks with age, letting in draughts and water.
Your job is guaranteed for a year, as with all our work.
- Place
- Holloway (N7, N19, N4)
- Wider area
- Greater London
- Cover
- One year on every job
- Quotes
- A clear price before work begins
- Telephone
- 0345 464 0079
- Updated
- 26 October 2026
When something else is needed
In fairness, there are a few things sealant won’t fix:
- Leaks from the roof covering or flashing (a roofer’s job)
- Condensation trapped between two panes
- A roof that has moved or dropped
Not sure which it is? You can ring 0345 464 0079 or email us and we’ll tell you honestly before you book.
Surfaces we seal
- Glass-to-frame joints
- Conservatory frames
- Shower screens
- Glass balustrade bases
- Rooflights
- Glass-to-glass joints
Landlord and commercial work in Holloway
In hotels, rooms out of use cost money, so the work can be planned room by room around your bookings where we can. Hotel work is part of what we do, alongside homes and businesses.
Letting agents often deal with us directly. Tell us the address, the job and how access works.
More services for Holloway
How the job changes by surface
Glass-to-glass joints
Where two panes meet, the silicone joint takes all the movement. The bead needs to be tidy and fully bonded.
Shower screens
Most shower screen leaks come from the wall or tray joint. Both are resealed with anti-fungal silicone.
What glazing silicone looks like in Holloway
Rainfall in the South East is lower than in much of the UK, yet outdoor joints still have to be sealed dry, so jobs are booked with the weather in mind. Historic houses like Witanhurst (about 1.7 miles north-west) are a reminder that the area around Holloway 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.
For an older house near a landmark such as St Joseph and St Padarn's Church, the joint between an old wall and a newer frame is normally the first place rain gets in. As a London address, Holloway can be tricky for parking: tell us about permits, visitor bays or off-street space when you book. For site and facilities teams at buildings such as Grafton Primary School, the mastic around its windows and doors needs looking after like any other building’s.
Holloway is about 2 miles north-west of Hoxton, in Greater London. Jobs in Holloway get the same care as everywhere else we work: the old material taken out, joints prepared properly and a 12-month guarantee. We cover 764 towns and villages across Greater London.
We cover every part of the N7, N19 and N4 postcode area for glazing silicone and the streets around it. You’ll find streets such as Penn Road, Lough Road and Tabley Road. If you are just outside Holloway, we cover Nag's Head (1 mile north), Lower Holloway (1 mile south), Tufnell Park (1 mile west), Upper Holloway (1 mile north-west) and Barnsbury (1 mile south). We also work in nearby towns such as London (4 miles south), City of Westminster (3 miles south-west), Marylebone (3 miles south-west), Kensington (5 miles south-west), Shoreditch (3 miles south-east) and Walthamstow (5 miles north-east).
Local landmarks in Holloway
In Holloway, that means homes and buildings near Vaughan Williams Memorial Library, Whittington Park and Beacon High, among other places. Nearby too are Musical Theatre Academy (0.8 miles south-east) and The Coronet pub (under half a mile south-east). For rail, the closest station is Drayton Park station, about 0.6 miles south-east. A little further out are Brunswick Centre (2.3 miles south) and Montfichet's Tower (3.1 miles south). The countryside around Holloway includes St. James's Park Lake and Dartmouth Park Hill.
Quotes for glazing silicone in Holloway
We don’t publish a price list. What we look at:
- The number of rooms or windows
- Access and height
- How much old sealant there is and how hard it is to remove
- Any working-time requirements on site
Homes and businesses are quoted the same way: the amount of work, how we reach it and what it needs. Ask us for a quote and we will explain what it covers.
What to tell us for a quote
Photos by email are helpful but not essential. Please mention:
- If someone has resealed it before
- The problem you’ve noticed
- How we’d reach the joints
- How many joints, rooms or windows are involved
Getting a quote is simple: let us know the job and the location. Photos by email help us understand the job, and we’ll come back to you with a quote.
Questions from Holloway
Is Holloway in your area for glazing silicone?
Yes. Our work covers London and the South East, and Holloway is part of that. You can ring 0345 464 0079 or email us and let us know what needs doing.
Is parking a problem for a job in Holloway?
London parking needs a little planning, so let us know about permits, bays or a driveway when you book. The visit is then planned around what’s available.
Where are you based?
Our base is in Crawley, and we work across South East England, London and Scotland.
Can you quote for more than one area?
Yes. Tell us about everything you’d like done and we will quote it together.
When is the sealant fully cured?
That depends on the sealant used, so please follow the time we give you when we finish.
Is a special sealant needed for glass?
A glazing-grade silicone is best. Ours is a neutral-cure glazing silicone and anti-fungal silicone in wet areas.
Can you reseal a frameless shower screen?
Yes. We cut out the old silicone and reseal the glass-to-wall and glass-to-tray joints.
Does someone need to be in?
We need access to the joints, so we will agree that with you when we book. For inside work, that normally means someone being in.
How it works
Before we leave, we go over the finished joints with you. The visit itself normally takes a few hours, depending on how many joints need doing, depending on the amount of work. For a job in Holloway, parking and access are the things to plan: tell us about permits, visitor bays or off-street space, which floor we’re working on and whether there’s a lift.
- We look at the glazing and agree which joints need resealing.
- Old sealant is removed from the glass and frame.
- We clean and prepare the joint.
- We apply and tool the new silicone.
- We inspect the work and test it where we can.
How to prepare
- Let us know about earlier repairs to the joints
- Keep children and pets away from the work area
- Tell us if parking is tricky
How to get a quote
Every job is quoted individually. Simply ring 0345 464 0079 or send us an email and describe the job and send photos if you have them.
Related advice
How to look after the new joints
After the cure time, these simple habits help:
- Keep conservatory gutters clear of leaves
- Avoid scraping close to the bead
- Act on drips or damp patches early
- Inspect the sealant on glazing annually
On shower screens, wipe or squeegee after use and let the room air. That slows mould growth on the bead.
Drips or damp near a glazing joint shouldn’t be ignored. It may be sealant, or something else and we’ll find out which.