Kent · England

Glazing Silicone in Knatts Valley

Glazing silicone in Knatts Valley from a team with over 20 years’ experience. 180+ five-star Google reviews and a 4.9 rating.

  • Shower screens leaking along the wall or tray
  • Black or yellowed silicone on glass joints
  • Drips on the inside of a conservatory window

Glazing silicone in Knatts Valley

Surface by surface

Glass-to-glass joints

These joints are on show, so a straight, even finish matters.

Shower screens

Frameless screens rely on silicone at the base and wall. We reseal without scratching the glass.

How we handle glazing silicone in Knatts Valley

We don’t replace glass, and misting between panes means a failed sealed unit. Our work is the sealant joints and that is often where the water gets in. We are often asked to deal with rooflight joints letting water in and glazing silicone that has cracked or come away, across glass-to-glass joints, glass balustrade bases and conservatory frames.

Outdoor sealant needs dry, clean surfaces, so work on frames around Knatts Valley is planned for dry weather. Tell us about access to every side of the house, including upper-floor windows.

A one-year guarantee comes with the work, just as it does everywhere we cover.

Place
Knatts Valley (TN15)
Wider area
Kent
Guarantee
One year on every job
Quotes
Quoted before any work starts
Call
0345 464 0079
Last updated
26 October 2026
Mr Mastic applicator sealing the top of a white uPVC door frame on a red-brick house

Windows and doors in Knatts Valley

Historic houses like Lullingstone Castle (about 2.8 miles north-west) are a reminder that the area around Knatts Valley 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.

Schools such as West Kingsdown CofE VC Primary School are buildings too, and its window and door frames need their mastic kept sound, just like a home’s. Homes close to Church of Saint Mary the Virgin include some older properties, and frames set in older brick or stone need a sealant that suits the wall as well as the frame.

Knatts Valley is about 4 miles north-east of Sevenoaks, in Kent. Anywhere in TN15, we can carry out glazing silicone at your property. 922 places in Kent are on our list, large and small. You can also see our page for London, roughly 19 miles from Knatts Valley.

Here we cover the TN15 postcode area for glazing silicone. You will find streets such as Knatts Lane and Knatts Valley Road, all of which we cover. If you’re just outside Knatts Valley, we cover East Hill (1 mile north-west), Woodlands (1 mile south), Romney Street (1 mile west), West Kingsdown (1 mile north-east) and Cotman's Ash (1 mile south). Larger places within reach include Maidstone (13 miles east), Dartford (8 miles north), Sevenoaks (4 miles south-west), Royal Tunbridge Wells (14 miles south), Gravesend (9 miles north-east) and Tonbridge (9 miles south).

What’s near Knatts Valley

Around Knatts Valley, our work takes us to homes and buildings near Kemsing Down, among other places. The closest station to Knatts Valley is Kemsing station, roughly 2.5 miles south. A little further out are Sevenoaks Hospital (3.9 miles south-west) and Kemsing Castle Bank (2 miles south-west).

Map of Knatts Valley © OpenStreetMap contributors

The process

When we arrive, we look over the joints with you first, so there are no surprises. Surfaces next to the work are protected before any work begins. The work generally takes a few hours, depending on how many joints need doing. Somewhere as small as Knatts Valley, access is often the only tricky part. For outside work, also let us know about exposed walls and any outbuildings involved.

  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. Each joint is checked and, where possible, water-tested.

Before we arrive

  • Plan for the work area to be out of bounds to pets and children
  • Mention any parking rules near the property
  • For indoor joints, keep the area dry beforehand if you can

Ask for a quote

There’s no standard price list, as no two jobs are quite the same. Instead, we send you a clear quote for your job. To arrange one, phone 0345 464 0079 or drop us an email.

Get a quick quote

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Keeping the joints in good condition

A little care helps the new joints last. Our advice:

  • Clean glass with a mild cleaner and a soft cloth
  • Inspect the sealant on glazing annually
  • Keep harsh solvents off the silicone
  • Keep conservatory gutters clear of leaves

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.

Drips or damp near a glazing joint shouldn’t be ignored. The cause may be sealant or another part, and we’ll tell you which.

Quotes for glazing silicone in Knatts Valley

We do not publish a price list. What we look at:

  • Any mould that needs treating
  • Which sealant suits the joint
  • How easy the joints are to reach
  • Whether old sealant or filler has to be cut out

Doing several joints on one visit usually makes better use of the time than several visits, so it’s worth mentioning everything you’d like done. You’ll get one clear quote for the whole job.

What we need to know

The more you tell us, the more accurate the quote. When you get in contact, it helps to mention:

  • Whether it has been sealed before
  • The type of property
  • Roughly how big the job is
  • The address or postcode of the job

Every job is quoted individually, so start by telling us what you need. Simply call 0345 464 0079 or drop us an email and describe the job and send pictures if you have them.

FAQs for Knatts Valley

I let a flat near Kemsing station. Can you help?

Yes, landlords and agents are among the people we work for, and several properties can go on one quote. You can call 0345 464 0079 or send us an email with the details for a clear quote.

Do you cover smaller places like Knatts Valley?

Yes, we do. We work across London and the South East, from towns to the smallest places. The journey is planned ahead, so it helps to know about access.

Is balustrade sealant something you do?

Yes. We cut out the failed sealant and reseal the base joint with a suitable product.

Will the old sealant be removed?

Yes. Sealing over the old bead is the commonest cause of early failure, so we never do it.

Can I choose the sealant colour?

We will suggest a colour to suit the surroundings, from white and clear to greys and other shades. The choice depends on the product the joint needs.

Can you reseal a frameless shower screen?

Yes. We cut out the old silicone and reseal the glass-to-wall and glass-to-tray joints.

Do I need to be at home?

That depends on where the joints are. For work indoors, someone needs to let us in, while outside work can sometimes be arranged differently.

What do you put in the joint?

The product depends on the job: anti-fungal sanitary silicone in wet areas, and other sealants where joints move or face the weather. We use products from Arbo and Everbuild.

Common problems we fix in Knatts Valley

Dirt and grease stop silicone sticking. Where the joint wasn’t cleaned and degreased, the bead can peel away early.

Keep an eye out for any of the following:

  • Water running down inside the glass
  • Mouldy sealant around glass panels
  • Failed sealant around rooflight glass
  • Silicone pulling away from the glass

Letting a property close to Kemsing station? Then leaking glazing joints, shower screens or conservatory seals are worth sorting between tenancies.

What to look for in a quote

  • What the quote includes, VAT included or not
  • Is the old sealant removed completely?
  • How long to leave it before use
  • Are they insured?

Choosing a sealant specialist

For landlords and businesses

In hotels, rooms out of use cost money, so we plan the work room by room. Hotel work is part of what we do, alongside homes and businesses.

Whether it’s one flat or a portfolio, the work is the same standard: the old material taken out, careful preparation and a 12-month guarantee.

Can I do it myself?

Too much sealant is as bad as too little. A heavy bead looks messy and copes badly with movement, and the joint depth matters as much as the finish.

If you are 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.

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