Greater London · England

Greenwich Glazing Silicone

Glazing silicone for conservatories, rooflights, glass panels and shower screens in Greenwich, with a one-year guarantee on every job. Ask us for a quote.

  • Leaking glazing joints on a rooflight
  • Conservatory leaks at frame and glazing joints
  • Sealant that was laid over old silicone and failed

Book glazing silicone in Greenwich

Glazing silicone for homes and businesses in Greenwich

Glazing joints need a sealant made for glass. We use a neutral-cure glazing silicone, which suits glass and most frame materials, and we tool it to a neat, even finish. We work on glass-to-frame joints, glass-to-glass joints and rooflights, and people most often call us about failed sealant around rooflight glass and shower screens leaking along the wall or tray.

London’s Victorian and Edwardian terraces were built with timber sash windows, and many still have them or their replacements. Whatever is in the opening now, the joint between frame and wall is what keeps the weather out, in Greenwich as anywhere.

All our work comes with a 12-month guarantee, wherever you are in Greater London.

Mr Mastic applicator sealing the top of a white uPVC door frame on a red-brick house
Location
Greenwich (SE10, SE3, SE8)
Region
Greater London
Guarantee
A year, on every job
Price
Quoted before any work starts
Call
0345 464 0079
Updated
26 October 2026

FAQs for Greenwich

Do you cover Greenwich for glazing silicone?

Yes, Greenwich is within the area we cover. Our work covers London and the South East. You can call 0345 464 0079 or send us an email and tell us what needs doing.

Is parking a problem for a job in Greenwich?

Parking in Greenwich, as in most of London, takes a little planning: a visitor permit or a bay close to the door helps a lot, so mention what’s available when you book.

Can you fix a leaking conservatory?

Often, if the leak is at a sealant joint. We trace the leak first before any sealing.

Which products do you use?

Each joint gets the product that suits it. Where it moves, gets wet or faces the weather makes a difference, and we will tell you what we are using.

Should I try DIY first?

That depends on the joint. Work at height, movement joints, fire-rated gaps and large areas are best left to a professional.

Are you an approved applicator?

Yes. We’re ARBOMaster approved, the scheme for applicators of Arbo sealants.

When is the sealant fully cured?

Most sealants are touch-dry well before they’re fully cured. We will tell you how long to leave the joint.

Will there be a smell?

There can be a smell while the sealant cures, which fades as it sets. Ventilation helps.

Surface by surface

Shower screens

Most shower screen leaks come from the wall or tray joint. Both are resealed with anti-fungal silicone.

Glass-to-glass joints

These joints are on show, so we take care to leave a neat bead.

When something else is needed

In fairness, there are a few things sealant will not fix:

  • Rotten or badly damaged frames
  • Cracked or broken glass
  • Leaks from the roof covering or flashing (a roofer’s job)

If in doubt, call 0345 464 0079 or drop us an email and we will say what we think before booking.

Surfaces we seal

  • Conservatory frames
  • Glass balustrade bases
  • Glass-to-frame joints
  • Rooflights
  • Glass-to-glass joints
  • Shower screens

How it works

At the end, we look at the finished work together. The work normally takes a few hours, depending on how many joints need doing, depending on the amount of work. For a job in Greenwich, 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.

  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. A neutral-cure glazing silicone is applied and tooled.
  5. We check the finished joints and test with water where it’s safe.

Getting ready for the visit

  • Let us know if you’ve seen damp or leaks
  • Keep children and pets away from the work area
  • Move anything stored near the joints

Get a quote

Every job is quoted individually, so start by telling us what you need. Just ring 0345 464 0079 or drop us an email with the details and send photos if you have them.

Get a price

Related advice

Glazing silicone in Greenwich: local notes

Historic houses like Queen's House (about 0.2 miles north-west) are a reminder that the area around Greenwich 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. The South East is one of the drier parts of the UK, yet outdoor joints still have to be sealed dry, so jobs are booked with the weather in mind.

If you let a flat or house near Maze Hill station, glazing joints are worth checking at the end of a tenancy, before a small leak grows. For an older house near a landmark such as St Mary's Church, replacement windows fitted into old openings often leave uneven gaps that need backing and a flexible joint. If you look after a building such as Meridian Primary School, larger buildings have plenty of frames, and the mastic around each one ages.

Greenwich is about 4 miles east of London, in Greater London. Whether you’re in the middle of Greenwich or further out, we cover glazing silicone for every kind of property. Our Greater London coverage runs to 764 places, and Greenwich is one of them.

Here we cover the SE10, SE3 and SE8 postcode area for glazing silicone. Local streets include Cade Road, Webb Road and Creek Road, and we cover them all. Greenwich is on the A2203 and A2211, so it’s easy for us to get to. We also cover the places around Greenwich: Maze Hill (1 mile north-east), Vanbrugh Park Estate (1 mile east), Blackheath (1 mile south-east), Westcombe Park (1 mile east) and Isle of Dogs (1 mile north-west). We also work in nearby towns such as London (4 miles west), City of Westminster (7 miles west), Marylebone (7 miles west), Kensington (9 miles west), St Pancras (6 miles north-west) and Shoreditch (5 miles north-west).

Around Greenwich

We work in homes and buildings around The Plume of Feathers pub, John Roan School and Royal School of Naval Architecture and Marine Engineering, among other places. Nearby too are Island Gardens (0.6 miles north-west) and St. Paul's (1.1 miles west). There’s a railway station in Greenwich itself: Maze Hill station. Other landmarks nearby include Greenwich Castle (within half a mile south-west) and Greenwich District Hospital (0.5 miles north-east). The countryside around Greenwich includes Tower Hill and Creekside Discovery Centre.

Map of Greenwich © OpenStreetMap contributors

Landlord and commercial work in Greenwich

Businesses can book us for washrooms, kitchens, offices and more. For commercial premises, we can talk through working times when we quote.

Water getting past a failed joint can damage the building, which is a bigger problem in a rented property. Keeping joints in good order is simple maintenance.

DIY versus a professional finish

A DIY attempt doesn’t rule out a professional job. We cut it out and start again, so tell us about it when you ask for a quote.

Overfilling a joint is a classic DIY mistake. A thick, smeared bead looks untidy and does not move well, and the joint depth matters as much as the finish.

How to look after the new joints

Good habits help new joints last longer. A few tips:

  • Keep scrapers and blades away from the silicone
  • Check the silicone on glass every year or so
  • Get a new leak looked at quickly
  • Avoid strong solvents on or near the sealant

Keep the new joints dry for as long as we advise 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 repairing damaged frames or plaster.

Why deal with it now?

Glazing joints need a sealant made for the job. A general-purpose tube may not bond well or may react with the frame, so we use neutral-cure glazing silicone. In London conversions, one flat’s bathroom is often above another flat’s ceiling, so a small leak from tired sealant can mean a neighbour’s ceiling and a lot of disruption. Putting it right early is much less trouble for homes in Greenwich.

Commercial jobs are quoted on the same basis as homes: the amount of work, how we reach it and what it needs, plus any working-time requirements on site. Call for a quick quote and we will go through it with you.

Why book with us

  • 20+ years of sealant experience
  • Rated 4.9 stars on Google
  • A 12-month guarantee on all work
  • Neat joints and a tidy finish

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