Greater London · England
Glazing & conservatory sealant in Bishopsgate, Greater London
Problem with your glazing joints in Bishopsgate? We cut out the old, prepare the joints and apply the right sealant, and the work is guaranteed for a year.
- Silicone pulling away from the glass
- Failed joints on frameless glass
- Leaks where conservatory glass meets the frame
Why act early in Bishopsgate
Silicone around glazing needs the right product. A general-purpose tube may not bond well or may react with the frame, so we use neutral-cure glazing silicone. In a flat in Bishopsgate, failed sealant seldom stays inside your own four walls: water from a shower or window joint can reach the flat below, and gaps in fire-stopping matter to everyone in the building.
Some things make a job bigger or smaller: how much old sealant there is and how stubborn it is, whether mould needs treating, and whether the work is at height. Your quote takes all of that into account.
Why book with us
- 4.9 on Google from 180+ five-star reviews
- Homes, businesses and hotels
- Old sealant always removed completely
- You choose the colour before work begins
Take a look at how sealant jobs are priced and our reviews.
How we handle glazing silicone in Bishopsgate
Many conservatory leaks come down to failed sealant at the glass-to-frame or frame-to-wall joints. We find the joint that’s letting water in and renew it and tell you plainly if the cause is something else. If you have glazing silicone that has cracked or come away and water escaping where a screen meets the wall, we can put it right, whatever the surface.
London has a lot of flats and conversions, where windows are often on upper floors. In a converted house or block, the lease generally says who is responsible for the windows, so it’s worth checking before booking, and access in Bishopsgate is something to talk through when you book.
Whatever the size of the job, you get the same one-year guarantee.
- Place
- Bishopsgate (E1, EC2A, EC1Y)
- Region
- Greater London
- Cover
- A year, on every job
- Quote
- A clear price before any work starts
- Call
- 0345 464 0079
- Updated
- 26 October 2026
What happens on the day
On the day, we start by going over the job with you, so you know exactly what we’re doing. We protect the surfaces around the joints before any work begins. Most jobs take anything from an hour or two to most of a day, depending on the size of the job. In Bishopsgate, as in most of London, parking needs a little planning. A visitor permit or a nearby bay makes the visit run more smoothly.
- We start by finding the leak and making sure sealant is the cause.
- We cut out the failed silicone, taking care of the glass and frame.
- Surfaces are cleaned with a solvent suited to glass and the frame.
- Glazing silicone suited to the joint is applied and tooled.
- We look over every joint and, where we can, test it with water.
Getting ready for the visit
- Keep children and pets away from the work area
- For indoor joints, keep the area dry beforehand if you can
- Mention any leaks or damp you’ve noticed
Ask for a quote
A good description makes for an accurate quote. Let us know the location, the problem and roughly how many joints, and email photos if that’s easy.
Read more
Bishopsgate homes and the weather
In a converted house or block, who looks after the windows depends on the lease, so check that before booking. With historic houses such as Mansion House (about 0.4 miles south-west) nearby, there’s older building stock in the area around Bishopsgate as well as newer homes. Where a home is older, older timber frames in brick or stone need a different approach from a modern uPVC window.
If you live in an older home near Church of St Ethelburga, replacement windows fitted into old openings often leave uneven gaps that need backing and a flexible joint. For landlords with property near London Liverpool Street station, a shower screen or conservatory joint that leaks is easier to reseal while the property is empty.
Bishopsgate is about 1 mile north-east of London, in Greater London. Our applicators cover glazing silicone for householders, landlords and businesses in Bishopsgate and the surrounding area. Our Greater London coverage runs to 764 places, Bishopsgate among them.
Work in E1, EC2A and EC1Y is quoted and booked the same way as anywhere else. Whether your property is on Bush Lane, Swan Lane and Love Lane or anywhere close by, we can help. Bishopsgate is on the A3 and A10, so it’s easy for us to get to. We also cover Aldgate (1 mile south-east), Spitalfields (1 mile east), City of London (1 mile west), Tower Hill (1 mile south) and Whitechapel (1 mile east). Within a short drive, we also cover City of Westminster (3 miles west), Marylebone (3 miles west), Kensington (5 miles west), Walthamstow (5 miles north-east), Hampstead (5 miles north-west) and Ruislip (15 miles west).
Local landmarks in Bishopsgate
Locally, jobs take us to homes and businesses close to Bishopsgate Institute Special Collections and Archives, St Mary-at-Hill and The Aldgate School and the streets around them. You’ll also find White Hart pub (within half a mile north-east), Central Foundation Boys' School (0.7 miles north) and Finsbury Circus (under half a mile north-west). There’s a railway station in Bishopsgate itself: London Liverpool Street station. Well-known places in the area include London Bridge Hospital (0.7 miles south) and Gabriel's Wharf (1.2 miles south-west). Not far away are St. James's Park Lake and Tower Hill.
FAQs for Bishopsgate
Do you work for landlords with property near London Liverpool Street station?
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’ll give you a clear price.
Do you cover Bishopsgate for glazing silicone?
Yes. Our work covers London and the South East, and Bishopsgate is part of that. You can phone 0345 464 0079 or send us an email and let us know what needs doing.
How long will you be here?
It depends on the size of the job, but as a guide it takes a few hours for most jobs. We’ll give you a better idea when we quote.
Where is Mr Mastic based?
Mr Mastic is based in Crawley. Our applicators cover Bishopsgate, along with the rest of our area.
Can you reseal a frameless shower screen?
Yes, we do these often. We use anti-fungal silicone made for wet areas.
How long before the joint can be used?
Cure times vary by product and the temperature. We tell you how long to leave it before we go.
What sealant do you use?
The product depends on the job: sanitary silicone where it gets wet, and sealants suited to movement or weather elsewhere. Brands we use include Arbo and Everbuild.
What do you need from me for a quote?
A short description and the location, plus photos if you have them. We will ask anything else we need to know.
Quotes for glazing silicone in Bishopsgate
We quote each job individually. This is what makes a difference:
- How many rooms, windows or areas are involved
- The amount of work
- Whether the work is at height
- The product the joint needs
Every job is a little different, so we quote each one individually. The number of joints, how easy they are to reach and the sealant needed all make a difference.
Asking for a quote
To make quoting easier, please include:
- Any access issues, like height or stairs
- Where the job is, and your postcode
- The type of property
- What the problem is, such as mould, gaps, leaks or cracking
There’s no standard price list. Instead, your job gets its own clear quote. To arrange one, phone 0345 464 0079 or drop us an email.
Landlord and commercial work in Bishopsgate
From a single let to a portfolio, you get the same standard of work: old sealant fully removed, joints prepared properly and a 12-month guarantee.
Landlords and letting agents in Bishopsgate can book us as well as householders. Sealant work between tenants is a simple way to keep a property in good order.
Do you need glazing silicone in Bishopsgate?
Not every leak is a sealant problem: broken panels, roof problems and blocked gutters can all let water in. That’s why we trace the leak first.
It’s worth asking for a quote if you see:
- Leaks from the base of a shower screen
- Sealant that was laid over old silicone and failed
- Glass-to-glass joints that have split
- Water running down inside the glass
Bishopsgate is in London, so parking needs planning: tell us about permits, visitor bays or off-street space when you book.
Questions to ask before booking
- Is VAT in the price?
- How long the guarantee is
- How long to leave it before use
- Who turns up on the day
Keeping the joints in good condition
Once the sealant has cured, a few habits help it last:
- Keep scrapers and blades away from the silicone
- Stick to mild cleaners on glass
- Act on drips or damp patches early
- Look over the glazing joints once a year
Keep the new joints dry for as long as we advise. From then on, a mild glass cleaner is all it needs.
Drips or damp near a glazing joint shouldn’t be ignored. The cause may be sealant or another part and we will find out which.
Can I do it myself?
Some sealant jobs are within reach of a careful DIYer, like a short, easy-to-reach joint indoors. Where it goes wrong is sealing over the old bead, working on a wet joint or overloading the gap.
Too much sealant is as bad as too little. A thick, smeared bead looks untidy and does not move well, and the joint depth matters as much as the finish.