Greater London · England
Pentonville Glazing Silicone
Glazing joints in Pentonville need attention? We cut out the old, prepare the joints and apply the right sealant, and the work is guaranteed for a year.
- Rooflight joints letting water in
- Conservatory leaks at frame and glazing joints
- Shower screens leaking along the wall or tray
Glazing silicone for homes and businesses in Pentonville
Our work covers conservatory joints, rooflights and glass panels plus shower screens and the bases of glass balustrades. Each joint is cut out, cleaned and resealed. Typical jobs include failed sealant around rooflight glass and water escaping where a screen meets the wall, on conservatory frames, glass balustrade bases and rooflights.
Much of London’s older housing was built with timber sash windows, some still in place and some long since replaced. Whatever is in the opening now, the joint between frame and wall is what keeps the weather out, in Pentonville as anywhere.
Each job carries a 12-month guarantee, large or small.
- Where
- Pentonville (N1, N1P, EC1V)
- Region
- Greater London
- Cover
- One year on every job
- Quotes
- A clear quote up front
- Telephone
- 0345 464 0079
- Page updated
- 26 October 2026
Do you need glazing silicone in Pentonville?
On shower screens, constant water and cleaning products wear silicone. Mould gets into it and the edges begin to peel.
People generally contact us after spotting something like this:
- Water tracking down the inner face of the glass
- Silicone pulling away from the glass
- Glass-to-glass joints that have split
- Stained, discoloured glazing silicone
Schools such as St John Evangelist RC Primary School are buildings too, and larger buildings have plenty of frames, and the mastic around each one ages.
Questions to ask before you book
- What the quote includes, VAT included or not
- What guarantee comes with the work
- Who turns up on the day
- How long to leave it before use
What happens on the day
At the end, we look at the finished work together. The visit itself usually takes anything from an hour or two to most of a day, depending on the size of the job, depending on the amount of work. In a London area like Pentonville, the main things to plan are parking and access: let us know about parking, the floor we will be working on and any lift or shared entrance.
- We trace the leak and confirm it’s a sealant joint.
- The failed silicone is cut out without marking the glass or frame.
- The joint is cleaned and degreased.
- We lay the new bead and tool it smooth.
- We check the finished joints and test with water where it’s safe.
Before we arrive
- Let us know about stairs, lifts or work at height
- Tell us about any previous sealing or DIY attempts
- Tell us about any water getting in
Ask for a quote
Need a quote? Please phone 0345 464 0079 or send us an email with a few details. You will know what we plan to do, and what it will cost, before any work begins.
Related advice
Windows and doors in Pentonville
In London conversions and blocks, the lease decides who is responsible for the frames, so check that before you book. Compared with the north and west, the South East gets less rain, yet outdoor joints still have to be sealed dry, so jobs are booked with the weather in mind.
For an older house near a landmark such as Church of Saint Peter, the joint between an old wall and a newer frame is usually the first place rain gets in. If you let a flat or house near Essex Road station, a shower screen or conservatory joint that leaks is easier to reseal while the property is empty.
Pentonville is about 1 mile north-east of St Pancras, in Greater London. If you need glazing silicone in Pentonville, it’s easy to get a quote: please phone 0345 464 0079 or send us an email. We are based in Crawley and cover Greater London. Across Greater London, we cover 764 places, and Pentonville is one of them.
Our applicators cover all of the N1, N1P and EC1V postcode area for glazing silicone and the streets around it. That includes homes and businesses on City Road, Noel Road and Dewey Road. Main roads around Pentonville include the A1200, which makes travel easy. Other places close to Pentonville include Angel (1 mile south-west), Islington (1 mile north), Clerkenwell (1 mile south), Barnsbury (1 mile north-west) and St Pancras (1 mile south-west). Further out, we also cover City of Westminster (3 miles south-west), Kensington (5 miles south-west), Walthamstow (5 miles north-east), Hampstead (4 miles west), Ruislip (13 miles west) and Brompton (4 miles south-west).
Landmarks near Pentonville
We work in homes and buildings around Islington Green School, The Camden Head Public House and Pilsudski Institute of London and the streets around them. Also close by are City of London Academy Islington (under half a mile east) and Barnard Park (less than half a mile west). For rail, the closest station is Essex Road station, about 0.5 miles north-east. Well-known places in the area include Museum of Funeral History (0.7 miles south-west) and Brunswick Centre (1.2 miles south-west). The countryside around Pentonville includes Ludgate Hill and St. James's Park Lake.
Nearby places to Pentonville
What else we do in Pentonville
Quotes for glazing silicone in Pentonville
You will get a clear quote before work begins. It takes into account:
- The size of the job
- Whether there’s mould to deal with
- Any working-time requirements on site
- The type of sealant required
Every job is a little different, so each one gets its own quote. Size, access and the product the joint needs all make a difference, and we’ll explain the quote if you ask.
What we need to know
There’s no need for technical detail. Just tell us:
- Whether it has been sealed before
- The type of property
- Where the job is, and your postcode
- Photos by email, if that’s easy
It all starts with a short chat. Describe the problem, the location and the size of the job, and we’ll talk you through what we’d do. When it suits you, phone 0345 464 0079 or send us an email.
What the job involves on each surface
Conservatory frames
Conservatory frame joints are a common source of leaks. We cut out the old sealant and reseal.
Shower screens
Frameless screens rely on silicone at the base and wall. We reseal without scratching the glass.
Should I try it myself first?
Sealing over old silicone is the commonest DIY error. New silicone won’t bond to old, so it peels away and traps moisture behind it. Everything old must be removed first.
Some jobs are best left to a professional: work at height, external movement joints, fire-rated sealant and large areas need the right product, the right access and the right method.
FAQs for Pentonville
Can you help a landlord with a rental near Essex Road station?
Yes, landlords and agents are among the people we work for. Just call 0345 464 0079 or drop us an email with the address and what needs doing, and we’ll give you a clear price.
Can you do glazing silicone in Pentonville?
Yes, Pentonville is within the area we cover. Our work covers London and the South East. Just call 0345 464 0079 or email us with a few details of the job.
Do you guarantee glazing sealant work?
There’s a 12-month guarantee on every job.
How long should I leave it?
It depends on the product and the temperature. We tell you how long to leave it before we go.
What do you need from me for a quote?
Just the basics: the address or postcode, what’s wrong and any access issues. Then call 0345 464 0079 or email us.
Will it make a mess?
No. We work neatly, protect the area around the joints and tidy up afterwards.
How long does the job take?
It depends on the size of the job, but most jobs take anything from an hour or two to most of a day, depending on the size of the job. We will give you a better idea when we quote.
Do the sealants smell?
It depends on the product. Some products have a noticeable smell, others very little.
Work for landlords, hotels and businesses
Housing providers, facilities teams and property managers book us too in Pentonville and across Greater London. We can quote a run of properties together, and we are fully insured for the work.
We also work for businesses, from offices to washrooms and kitchens. On commercial sites, working times can be discussed when we quote.
Looking after it afterwards
After the cure time, these simple habits help:
- Keep harsh solvents off the silicone
- Run a squeegee over the glass when you’re done
- Keep conservatory gutters clear of leaves
- Keep air moving in the conservatory
Keep conservatory gutters clear so water doesn’t back up against the seals. Blocked gutters can push water where it shouldn’t go.
Act on black or lifting silicone early. Peeling silicone lets water in behind and the problem grows.