Greater London · England
Glazing & conservatory sealant in Southgate, Greater London
Glazing joints in Southgate need attention? We cut out the old, prepare the joints and apply the right sealant.
- Failed sealant around rooflight glass
- Glass-to-glass joints that have split
- Black or yellowed silicone on glass joints
Keeping the joints in good condition
Aftercare is simple, and it makes a real difference:
- Check the silicone on glass every year or so
- Keep harsh solvents off the silicone
- Don’t use a blade near the sealant
- Keep air moving in the conservatory
Follow the cure time we give you before the joints get wet so the silicone can set properly. From then on, a mild glass cleaner is all it needs.
Damp patches, drips and condensation along a joint are worth checking. The cause may be sealant or another part and we’ll find out which.
Glazing silicone for homes and businesses in Southgate
Cracked, stained or lifting silicone on glass spoils the look and lets water in. We remove it without scratching the glass or frame and reseal the joint. We’re often asked to deal with split or lifting silicone on glass and cracked silicone between glass panels, across conservatory frames, glass-to-glass joints and glass-to-frame joints.
Much of London’s older housing was built with timber sash windows, some still in place and some long since replaced. Either way, the mastic between frame and brickwork is what stops draughts and rain getting in, in Southgate as anywhere.
We guarantee the work for a year. If something isn’t right with it in that time, tell us and we will put it right.
- Where
- Southgate (N14, N11, N21, N13)
- Region
- Greater London
- Guarantee
- One year on every job
- Price
- A clear quote up front
- Phone
- 0345 464 0079
- Updated
- 26 October 2026
Places near Southgate
More services for Southgate
What we cannot put right
We’ll always be straight with you, so here’s what sealant can’t fix:
- Leaks from the roof covering or flashing (a roofer’s job)
- A broken pane or roof panel
- Condensation trapped between two panes
If you are not sure, just ring 0345 464 0079 or send us an email and we’ll give you a straight answer.
What we seal
- Glass-to-frame joints
- Rooflights
- Glass balustrade bases
- Conservatory frames
- Glass-to-glass joints
- Shower screens
Landlords, agents and businesses in Southgate
Failed sealant is one of the commonest items on a check-out report. Several properties can be quoted together.
A neglected joint can let water reach the structure, which is a bigger problem in a rented property. Resealing at the right time is simple maintenance.
Do you need glazing silicone in Southgate?
Sunlight breaks sealant down and roof joints get the most sun. It goes brittle, cracks and stops sticking to the glass and frame.
The problems people usually mention when they call are:
- Split or lifting silicone on glass
- Conservatory leaks at frame and glazing joints
- Water tracking down the inner face of the glass
- New silicone smeared over old sealant
For landlords with property near New Southgate station, glazing joints are worth checking at the end of a tenancy, before a small leak grows.
Comparing quotes
- What guarantee comes with the work
- Is VAT in the price?
- Who does the work, and how experienced they are
- What the cure time is
FAQs for Southgate
Is Southgate in your area for glazing silicone?
Yes. We work across London and the South East, and Southgate is part of that. You can ring 0345 464 0079 or email us and let us know what needs doing, and we’ll give you a clear quote.
Is parking a problem for a job in Southgate?
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.
Will resealing stop my conservatory leaking?
Often, if the leak is at a sealant joint. We find where the water gets in first before any sealing.
Do the sealants smell?
Some sealants have a smell while they cure. Ventilation helps.
Can you reseal a frameless shower screen?
Yes, it’s a common job. The screen is resealed with anti-fungal silicone suited to bathrooms.
How long will you be here?
A typical job takes a few hours for most jobs, including the preparation. We will confirm how long when we quote.
Are you insured?
Yes, we are fully insured.
Should I try DIY first?
For a simple, easy-to-reach joint, a careful DIYer can do a reasonable job. Most DIY failures come from sealing over old material, wet joints or too much sealant.
Different surfaces, different methods
Conservatory frames
Conservatory frame joints are a common source of leaks. We cut out the old sealant and reseal.
Rooflights
Rooflights get the full force of the weather. Its sealant ages faster than vertical joints.
Windows and doors in Southgate
The South East is one of the drier parts of the UK, though outdoor sealant still has to go onto a dry joint, so the forecast decides the day. Historic houses like Bruce Castle (about 3.2 miles south-east) are a reminder that the area around Southgate 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.
Southgate is in London, so parking needs planning: tell us about permits, visitor bays or off-street space when you book. Managing a site like Ashmole Primary School? Then larger buildings have plenty of frames, and the mastic around each one ages.
Southgate is about 3 miles south-east of Barnet, in Greater London. Homes, rented property, offices and hotels in Southgate can book us for glazing silicone. Every job comes with our one-year guarantee. Southgate is one of 764 places in Greater London where we work. You can also see our page for London, roughly 9 miles from Southgate.
We cover every part of the N14, N11, N21 and N13 postcode area for glazing silicone. Local streets include High Street, Station Road and Blagden's Close, and we cover them all. With the A111 and A1004 close by, Southgate is easy for our applicators to reach. If you’re just outside Southgate, we cover Osidge (1 mile north-west), Brunswick Park (1 mile west), Arnos Grove (1 mile south), New Southgate (1 mile south) and Oakwood (1 mile north). We also work in nearby towns such as London (9 miles south), City of Westminster (8 miles south), Marylebone (8 miles south), Kensington (9 miles south), St Pancras (7 miles south) and Shoreditch (7 miles south).
Near you in Southgate
Typical jobs here are in homes near The New Crown pub, Grovelands Park and Ashmole Academy and the streets around them. For rail, the closest station is New Southgate station, about 1 mile south-west. Nearby you’ll also find Grand Arcade (2.1 miles south-west) and Greentrees Hospital (1.9 miles south-east). The countryside around Southgate includes Highgate Hill and Barfield Allotments Nature Park.
What we do, step by step
Most of a good job is in the preparation, and we don’t rush it. Every joint is cleaned and dried before new material goes in. In total, it usually takes a few hours, depending on how many joints need doing. Parking in much of London is by permit or pay-and-display, so it helps to know what’s near you in Southgate. A visitor permit or a nearby bay makes the visit run more smoothly.
- First, we trace the leak and check it’s coming through a sealant joint.
- The old sealant is removed from the glass and frame without scratching them.
- We clean the joint with a solvent that suits the glass and frame.
- We apply a neutral-cure glazing silicone and tool it smooth.
- We check the joints and, where safe, run water over them.
How to prepare
- Clear the area around the work
- Mention any sign-in or site rules at work premises
- Tell us about any water getting in
Get a quote
Need a quote? Please ring 0345 464 0079 or email us with a few details. We’ll explain what we’d do and give you a clear quote before we start.
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Quotes for glazing silicone in Southgate
There’s no set price list, because no two jobs are the same. What we look at:
- How easy the joints are to reach
- When we can work, for business premises
- The size of the job
- Whether old sealant or filler has to be cut out
No two jobs are quite the same, so we quote each one individually. The number of joints, how easy they are to reach and the sealant needed all make a difference, and we will explain the quote if you ask.
Asking for a quote
Before you ask for a quote, have a think about:
- Any access issues, like height or stairs
- What’s wrong with the joints now
- The address or postcode of the job
- Pictures of the joints, sent by email
Call for a quick quote, or send an email if you’d rather. Describe what needs sealing and we will talk you through the work and give you a clear price.