Greater London · England

Glazing & conservatory sealant in Chelsea, Greater London

Glazing silicone in Chelsea from a team with over 20 years’ experience. Rated 4.9 on Google from 180+ five-star reviews.

  • Leaks from the base of a shower screen
  • New silicone smeared over old sealant
  • Water running down inside the glass

Book glazing silicone in Chelsea

Windows and doors in Chelsea

With historic houses such as Carlyle's House (about 0.4 miles south-west) nearby, there’s older building stock in the area around Chelsea as well as newer homes. In older buildings, older timber frames in brick or stone need a different approach from a modern uPVC window. Rainfall in the South East is lower than in much of the UK, but outside sealant still needs a dry, clean surface, so outdoor work is planned around the forecast.

Rented homes near London Victoria station change hands often, and glazing joints are worth checking at the end of a tenancy, before a small leak grows. Managing a site like Oratory Roman Catholic Primary School? Then larger buildings have plenty of frames, and the mastic around each one ages.

Chelsea is about 2 miles south-east of Kensington, in Greater London. Whether you’re in the middle of Chelsea or further out, we cover glazing silicone for every kind of property, from flats and houses to offices and hotels. Chelsea is one of 764 places in Greater London we cover.

Every address in SW3, SW10, SW1X and SW1W is within our area for glazing silicone, from the main roads to the quietest streets. If you need glazing silicone at a property on Markham Square, Wellington Square and Tedworth Square or a nearby road, our applicators can take on the job. You’ll find Chelsea on the B302 and B304, which makes it straightforward to reach with everything needed for glazing silicone. If you’re just outside Chelsea, we cover Brompton (1 mile north), South Kensington (1 mile west), Little Chelsea (1 mile south-west), Belgravia (1 mile north-east) and World's End (1 mile south-west). Within a short drive, we also cover London (3 miles east), St Pancras (3 miles north-east), Shoreditch (5 miles north-east), Walthamstow (9 miles north-east), Hoxton (5 miles north-east) and Whitechapel (5 miles north-east).

What’s near Chelsea

In Chelsea, that means homes and buildings near Burton’s Court, St Thomas More RC Language College and Markham Arms Public House and the streets around them. Also close by are Natural History Museum Library and Archives (0.7 miles north-west) and Hellenic College of London (0.5 miles north). The nearest railway station is London Victoria station, roughly 1 mile north-east of the centre. Nearby you will also find Baynard's Castle (3.2 miles north-east) and Harrods (0.7 miles north). Open spaces near Chelsea include Campden Hill and Battersea Park Lake.

Map of Chelsea © OpenStreetMap contributors

How we handle glazing silicone in Chelsea

A frameless shower screen depends on its silicone. The joint down the wall and the one along the tray are common leak points and both get fresh anti-fungal silicone. We work on glass balustrade bases, rooflights and shower screens, and common reasons people get in touch are leaking glazing joints on a rooflight and water tracking down the inner face of the glass.

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 Chelsea is something to talk through when you book.

Our work is backed for twelve months, in Chelsea and everywhere else we cover.

Outdoor mastic being applied where a white frame meets red brickwork, below the fascia and gutter
Place
Chelsea (SW3, SW10, SW1X, SW1W)
Wider area
Greater London
Cover
12 months on all our work
Price
A clear price before work begins
Telephone
0345 464 0079
Page updated
26 October 2026

Looking after it afterwards

Simple care keeps the joints in good condition. Our advice:

  • Check the silicone on glass every year or so
  • Don’t use a blade near the sealant
  • Use gentle products around the joints
  • Act on drips or damp patches early

Check the joints once a year. Catching a split early keeps the repair small, before water gets in.

Conservatory leaks rarely stay small. Water runs along frames and down walls, so get it looked at when you first see it.

The process

On the day, there’s very little for you to do. Point us to the joints and we will get on with it. The job generally takes a few hours for most jobs from start to finish. In a London area like Chelsea, the main things to plan are parking and access: 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 agree the joints to be done.
  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

  • Mention any parking rules near the property
  • Keep children and pets away from the work area
  • Tell us about any water getting in

How to get a quote

Asking for a quote is easy: let us know what needs doing and where. A few photos by email make the job easier to understand.

Get a quick quote

Read more

Why act early in Chelsea

You don’t need new glazing because the sealant has gone. Sound glass and frames generally just need resealing. In London conversions, one flat’s bathroom is often above another flat’s ceiling, and a slow leak from a failed seal can end up in the flat below. Dealing with it early is far simpler for homes in Chelsea.

Rather than a set price list, we look at what your job involves: the amount of work, the old material and the access. The price is agreed before we begin.

What you get with us

  • Colour picked to suit the job
  • Anti-fungal silicone where joints get wet
  • Experience in homes, commercial sites and hotels
  • Tidy, careful work

See what affects the cost or our reviews.

How the job changes by surface

Rooflights

A rooflight faces rain and sun from above. The sealant around the glass and frame wears faster than most.

Shower screens

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

Can I do it myself?

The difference is mostly in the preparation and the product. We take joints back to clean, dry surfaces, and the sealant is chosen for how the joint moves and where it is, and the work is guaranteed for a year.

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.

For landlords and businesses

In hotels, rooms out of use cost money, so the work can be planned room by room. We’ve worked in hotels as well as homes and businesses.

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 that we can handle for you.

Questions from Chelsea

Is parking a problem for a job in Chelsea?

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.

Can you help a landlord with a rental near London Victoria station?

Yes, we work for landlords and letting agents. You can phone 0345 464 0079 or drop us an email with the address and a few details, and we will give you a fixed price before any work starts.

Do I have to be there?

Access is agreed with you when the job is booked. For inside work, that normally means someone being in.

Do you guarantee glazing sealant work?

Our 12-month guarantee applies to every job we do.

Can I do it myself?

Some simple jobs can be done by a careful DIYer. The usual mistakes are sealing over old sealant, sealing a damp joint and using too much.

Can I add another job to the visit?

Yes. More than one area can be quoted together.

Why not top up the existing silicone?

Topping up is a common cause of leaks. We remove the old silicone, clean the joint and reseal.

Do you offer different sealant colours?

In most cases you can choose. We will explain which colours are available.

Common problems we fix in Chelsea

Some conservatory leaks are not sealant at all: broken panels, roof problems and blocked gutters can all let water in. We find the cause before we seal anything.

Common reasons people contact us are:

  • Glass-to-glass joints that have split
  • Conservatory leaks at frame and glazing joints
  • A quick top-up bead that didn’t last
  • Stained, discoloured glazing silicone

Homes close to Former Welsh Congregational Church include some older properties, and replacement windows fitted into old openings often leave uneven gaps that need backing and a flexible joint.

Questions to ask before you book

  • What product goes in the joint
  • What happens if they find a problem under the old sealant
  • Whether they seal over old material or remove it
  • When the joint can take water or movement

Choosing a sealant specialist

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