Greater London · England

Glazing & conservatory sealant in St Giles, Greater London

Glazing silicone for conservatories, rooflights, glass panels and shower screens for homes and businesses in St Giles and across Greater London. ARBOMaster approved applicators, fully insured, with a 12-month guarantee.

  • Black or yellowed silicone on glass joints
  • Failed sealant around rooflight glass
  • Drips on the inside of a conservatory window

Glazing silicone near St Giles

About our glazing silicone in St Giles

Across St Giles, we reseal glazing joints in homes, offices and hotels. From conservatories to shower screens, it’s the same careful method. We work on glass-to-glass joints, shower screens and glass-to-frame joints, and the jobs we see most are water getting into a conservatory at the joints and silicone pulling away from the glass.

London has a lot of flats and conversions, where windows are often on upper floors. Who looks after the outside of the frames can depend on the lease, so check that first, and access in St Giles is something to talk through when you book.

You are covered for a year from the day we finish. If there’s a problem with it, please phone 0345 464 0079 or send us an email.

Location
St Giles (W1F, W1D, W1T)
Wider area
Greater London
Guarantee
12 months on all our work
Price
A clear price before we start
Call
0345 464 0079
Page updated
26 October 2026
Outdoor mastic being applied where a white frame meets red brickwork, below the fascia and gutter

Looking after it afterwards

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

  • Act on drips or damp patches early
  • Use gentle products around the joints
  • Don’t use a blade near the sealant
  • Wipe the screen down after showering

Use mild cleaners on and around the silicone. Harsh solvents may damage the bead.

Act on black or lifting silicone early. Peeling silicone lets water in behind and the problem grows.

St Giles: your questions answered

Can parking be tricky for a visit in St Giles?

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.

Do you cover St Giles for glazing silicone?

Yes, St Giles is within the area we cover. We work across London and the South East. You can phone 0345 464 0079 or drop us an email and let us know what needs doing, and we will send you a clear quote.

Will it make a mess?

Very little: the area around the joints is protected first, and we tidy up before we go.

Why not top up the existing silicone?

Many leaks we see come from exactly that. A proper job means cutting out, cleaning and resealing.

Which silicone is used for glass joints?

We use a neutral-cure glazing silicone suited to glass and the frame. In bathrooms, we use anti-fungal silicone.

Can you work on commercial sites?

Yes, regularly. Larger jobs can be planned room by room or area by area to suit the site.

Will resealing stop my conservatory leaking?

It depends on the cause. Failed glazing and frame joints can be resealed but roof and panel problems need another trade.

Do you reseal glass shower screens?

We can. We remove the old silicone carefully before cleaning and resealing.

What happens if it’s left?

Replacing windows or a shower screen isn’t needed for a failed joint. Sound glass and frames usually just need resealing, and we will tell you if that is not the case. In a flat in St Giles, failed sealant seldom stays inside your own four walls: water can reach the neighbours below, and gaps in fire-rated joints affect the whole building.

A few things move the cost up or down: the old material and how easily it comes out, whether mould needs treating, and whether we need extra access for height. Your quote takes all of that into account.

Why St Giles clients choose us

  • Arbo and Everbuild products
  • Sealant colour chosen to suit
  • An ARBOMaster approved applicator
  • We never seal over old sealant

See how sealant jobs are priced and customer reviews.

The process

There’s no need to move everything out, only the area right around the joints. Everything nearby is protected, and the work takes a few hours, depending on how many joints need doing for a typical job. Parking in much of London is by permit or pay-and-display, so it helps to know what’s near you in St Giles. It helps if you can point us to a visitor permit or a bay close to the door.

  1. We look at the glazing and agree which joints need resealing.
  2. We cut away the failed silicone.
  3. We clean and prepare the joint.
  4. We apply and tool the new silicone.
  5. The joints are checked before we leave.

Before we arrive

  • Clear the area around the work
  • Keep children and pets away from the work area
  • Mention any sign-in or site rules at work premises

Ask for a quote

For glazing silicone in St Giles, ring 0345 464 0079 or drop us an email. Tell us what the problem is and where, and we will agree the price before any work begins.

Get a price

Read more

Landlord and commercial work in St Giles

We also work for businesses, from offices to washrooms and kitchens. On commercial sites, working times can be discussed when we quote.

We also work for property managers and facilities teams. Several sites can be quoted together, and we are fully insured.

How the job changes by surface

Glass-to-frame joints

We cut the old silicone from the glass without scratching it and reseal with glazing silicone.

Glass balustrade bases

Glass balustrades sit in a channel that’s often finished with sealant. When it fails, water can sit in the channel.

What glazing silicone looks like in St Giles

In a converted house or block, who looks after the windows depends on the lease, so it’s worth checking before booking. Historic houses like Benjamin Franklin House (about 0.5 miles south) are a reminder that the area around St Giles has older buildings as well as new. In older buildings, older frames set in brick or stone need a sealant that suits them, and sometimes that is traditional sand mastic.

As a London address, St Giles can be tricky for parking: let us know about parking bays, permits or a driveway. If you live in an older home near Soho Baptist Chapel, the joint between an old wall and a newer frame is normally the first place rain gets in. Schools such as St Josephs Catholic Primary School are buildings too, and the mastic around its windows and doors needs looking after like any other building’s.

St Giles is about 1 mile east of City of Westminster, in Greater London. Our applicators cover glazing silicone for homes and businesses in St Giles and nearby, as part of our work across Greater London. Our Greater London coverage runs to 764 places, and St Giles is one of them.

We work across the W1F, W1D and W1T postcode area for glazing silicone. That includes homes and businesses on Duck Lane, Drury Lane and Bridle Lane and the roads around them. Main roads around St Giles include the A301 and A400, which makes travel easy. If you’re just outside St Giles, we cover Seven Dials (1 mile south), West End (1 mile south-west), Soho (1 mile south-west), Covent Garden (1 mile south-east) and Chinatown (1 mile south-west). We also work in nearby towns such as Kensington (3 miles west), Walthamstow (7 miles north-east), Hampstead (4 miles north-west), Ruislip (13 miles west), Stockwell (3 miles south) and Orpington (13 miles south-east).

Around St Giles

Locally, jobs take us to homes and businesses close to LSE Shaw Library, The Crown pub and Mercers' School and the streets around them. Nearby too are London Nautical School (1 mile south-east) and St Anne's Churchyard (less than half a mile south-west). There’s a railway station in St Giles itself: Tottenham Court Road station. Other landmarks nearby include Montfichet's Tower (1.1 miles east) and Kingly Court (0.5 miles west). Not far away are Barnsbury Wood and Ludgate Hill.

Map of St Giles © OpenStreetMap contributors

Honest limits

We’ll always be straight with you, so here’s what new sealant won’t do:

  • Leaks from the roof covering or flashing (a roofer’s job)
  • A frame that needs repairing or replacing
  • Glass that needs replacing

Not sure which it is? You can ring 0345 464 0079 or email us and we’ll tell you honestly before you book.

Joints and surfaces we work on

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

What affects the cost of glazing silicone

The quote reflects the job in front of us. We look at:

  • The type of sealant required
  • How many rooms, windows or areas are involved
  • How much there is to do
  • Whether old sealant or filler has to be cut out

Combining jobs into one visit is generally more efficient than separate visits. You’ll get one clear quote for the whole job.

Helping us quote

You don’t need to know the technical terms. Just tell us:

  • How many joints, rooms or windows are involved
  • What’s wrong with the joints now
  • Any access issues, like height or stairs
  • Pictures of the joints, sent by email

Every job is quoted individually, so start by telling us what you need. Simply phone 0345 464 0079 or send us an email and describe the job.

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