Greater London · England

Glazing & conservatory sealant in South Street, Greater London

Glazing silicone for South Street and the surrounding area: careful preparation, the right product and tidy work. Ask us for a quick quote.

  • Stained, discoloured glazing silicone
  • Water tracking down the inner face of the glass
  • Water getting into a conservatory at the joints

Glazing silicone in South Street

Can I do it myself?

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.

If you’re set on DIY, put the effort into preparation: remove every trace of old sealant, clean and dry the joint, and follow the product’s cure time. If it fails, we can still redo it.

Glazing silicone in South Street

Many conservatory leaks come down to failed sealant at the glass-to-frame or frame-to-wall joints. We trace the leak to the joint and reseal it and tell you plainly if the cause is something else. We work on glass-to-glass joints, rooflights and conservatory frames, and people most often call us about black or yellowed silicone on glass joints and a quick top-up bead that didn’t last.

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.

Every job is covered by a one-year guarantee.

Place
South Street (TN16)
Region
Greater London
Guarantee
A year, on every job
Quote
A clear price before we start
Telephone
0345 464 0079
Page updated
26 October 2026
Sealant gun close-up on a shower enclosure wall joint

What happens on the day

Before we leave, we go over the finished joints with you and tell you how long to leave it. The work normally takes a few hours for most jobs, depending on how much there is to do. Many London jobs are in flats, so we come ready for stairs, narrow hallways and shared entrances. If the building has a concierge, managing agent or access rules, tell us when you book.

  1. First, we check where the water gets in.
  2. We remove the old sealant carefully.
  3. We clean the glass and frame so the new silicone bonds.
  4. We lay the new bead and tool it smooth.
  5. We check the finished joints and test with water where it’s safe.

How to prepare

  • Keep pets and children clear of the area while we work
  • Tell us about any water getting in
  • Move anything stored near the joints

Getting a quote

Quotes start with a quick conversation. Tell us what’s wrong, where it is and how much there is, and we will explain how we’d tackle it. Whenever you are ready, ring 0345 464 0079 or send us an email.

Ask for a quote

Related advice

Questions from South Street

Do you cover South Street for glazing silicone?

Yes. Our work covers London and the South East, and South Street is part of that. Just ring 0345 464 0079 or send us an email with a few details of the job.

Can you help a landlord with a rental near Oxted station?

Yes, rental work is part of what we do. Just phone 0345 464 0079 or drop us an email and tell us about the property, and we’ll give you a clear price.

Will there be a smell?

Possibly a little. It fades as the sealant cures, and ventilation helps.

Why not top up the existing silicone?

Many leaks we see come from exactly that. We remove the old silicone, clean the joint and reseal.

Do you work for hotels and businesses?

Yes. We’ve worked for hotels, offices and other businesses and we’re fully insured.

Is the work guaranteed?

You get our one-year guarantee to every job we do.

Will resealing stop my conservatory leaking?

That depends where the water is getting in. Sealant joints we can renew, but roof panels and structural problems need a conservatory specialist or roofer.

Do you fit new glass or sealed units?

That’s not something we do. Misting between panes means the sealed unit has failed, and a glazier needs to replace it.

Keeping the joints in good condition

So the new joints stay in good condition:

  • Clean glass with a mild cleaner and a soft cloth
  • Keep scrapers and blades away from the silicone
  • Squeegee the shower screen after each use
  • Avoid strong solvents on or near the sealant

Follow the cure time we give you before the joints get wet so the silicone can set properly. After that, clean glass with a mild cleaner.

Cracked glazing silicone means the joint has failed. Resealing now is a small job compared with fixing water damage later.

Different surfaces, different methods

Shower screens

Frameless screens rely on silicone at the base and wall. We renew it without marking the glass.

Conservatory frames

Frame-to-wall joints on a conservatory move with the weather. We reseal them with a sealant suited to the frame.

Common problems we fix in South Street

The wrong sealant is a common cause. Not every silicone sticks properly to glass and vinegar-smelling acetoxy silicone can attack some metals.

The most common problems we see are:

  • Leaks from the base of a shower screen
  • Water getting into a conservatory at the joints
  • Drips on the inside of a conservatory window
  • Mouldy sealant around glass panels

If you live in an older home near Church of St Mary the Virgin, the joint between an old wall and a newer frame is generally the first place rain gets in.

Before you book anyone

  • What happens if the job turns out different
  • How the surfaces are prepared before sealing
  • How much experience the applicator has
  • How long to leave it before use

10 questions to ask before booking

Windows and doors in South Street

London and the South East are among the drier parts of the UK, but outside sealant still needs a dry, clean surface, so outdoor work is planned around the forecast. In London conversions and blocks, the lease decides who is responsible for the frames, so it’s worth checking before booking.

If you look after a building such as Charles Darwin School, larger buildings have plenty of frames, and the mastic around each one ages. As a London address, South Street can be tricky for parking: let us know about parking bays, permits or a driveway.

South Street is about 4 miles north-east of Oxted, in Greater London. From the centre of South Street to the outskirts, glazing silicone is available for homes and businesses alike, from flats and houses to offices and hotels. South Street is one of 764 places in Greater London where we work for glazing silicone. There’s also a page for London, about 15 miles away.

Here we cover the TN16 postcode area for glazing silicone. Close by, we work in Tatsfield (1 mile west), Force Green (2 miles south-east), Titsey (2 miles south-west), Westerham (2 miles south-east) and Moorhouse Bank (3 miles south). We also work in nearby towns such as London (15 miles north-west), Stockwell (14 miles north-west), Orpington (6 miles north), Wimbledon (14 miles north-west), Kennington (15 miles north-west) and New Cross (13 miles north).

Around South Street

The closest station to South Street is Oxted station, roughly 3.7 miles south-west. Other landmarks nearby include Tandridge Priory (3.2 miles south). Not far away are West Kent Golf Course nature reserve and Betsom's Hill.

Map of South Street © OpenStreetMap contributors

How we quote for glazing silicone

There’s no set price list, because no two jobs are the same. The quote depends on:

  • The number and length of the joints
  • How easy the joints are to reach
  • Mould in or behind the old joints
  • The number of rooms or windows

What it costs depends on how much there is to do, how hard the old material is to remove and access to the work. We give a clear quote before any work starts, so you know where you stand.

Asking for a quote

You don’t need to know the technical terms. It helps if you can tell us:

  • Photos by email, if that is easy
  • Whether it’s a home or a business
  • What the problem is, such as mould, gaps, leaks or cracking
  • Any previous sealing or DIY work

For a quote, ring 0345 464 0079 or drop us an email and tell us where the job is and what the problem looks like. We’ll give you a clear quote before any work starts.

Why act early in South Street

A leaking joint won’t fix itself. Water can damage frames, walls, flooring and furniture so early action saves a bigger repair. In a flat in South Street, 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.

A failed joint rarely gets cheaper to fix by waiting, as water and mould keep getting in. If you are unsure, call 0345 464 0079 or drop us an email and we’ll give you an honest view and a quote.

Why South Street clients choose us

  • Experience in homes, commercial sites and hotels
  • Any old sealant cut out fully, not covered over
  • Quality sealants from Arbo and Everbuild
  • We are fully insured

See our cost guide or customer reviews.

20+ yearsMastic and sealant specialists
ARBOMaster approvedApproved applicator for Arbo sealants
Fully insuredDomestic, commercial and hotels
One-year guaranteeOn every job