Kent · England

Glazing & conservatory sealant in Cold Harbour, Kent

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

  • Mouldy sealant around glass panels
  • Glazing silicone that has cracked or come away
  • Conservatory leaks at frame and glazing joints

Trusted glazing silicone in Cold Harbour

Glazing silicone in Cold Harbour, done properly

Not every silicone suits glass. We use a neutral-cure glazing silicone, which suits glass and most frame materials, and we tool it to a neat, even finish. Common call-outs are for water getting into a conservatory at the joints and black or yellowed silicone on glass joints, on glass-to-glass joints, glass balustrade bases and rooflights.

Outdoor sealant needs dry, clean surfaces, so work on frames around Cold Harbour is planned for dry weather. Let us know about access to all the frames, upstairs ones included.

The work is guaranteed for twelve months. If there’s a problem with our work within the year, let us know and we will sort it.

Mr Mastic applicator sealing the top of a white uPVC door frame on a red-brick house
Place
Cold Harbour (ME17)
Region
Kent
Cover
A year, on every job
Price
Quoted before any work starts
Telephone
0345 464 0079
Updated
26 October 2026

What affects the cost of glazing silicone

You’ll get a clear quote before work begins. It’s based on:

  • How many rooms, windows or areas are involved
  • Any mould that needs treating
  • The product the joint needs
  • How much old sealant there is and how hard it is to remove

The cost depends on the size of the job, how much old material has to come out and how easy the joints are to reach. We give a clear quote before work begins, so you know where you stand.

What we need to know

A few details help us give you an accurate quote. When you ask for a quote, tell us:

  • Whether it’s a home or a business
  • The problem you’ve noticed
  • Access, such as stairs, a lift or height
  • The address or postcode of the job

To get a quote, ring 0345 464 0079 or drop us an email with the location and a short description of the problem. We will send you a clear quote before any work starts.

Honest limits

In fairness, some problems need a different trade:

  • A broken pane or roof panel
  • A roof that has moved or dropped
  • Frames that have decayed or split

If you are not sure, just phone 0345 464 0079 or send us an email and we’ll give you a straight answer before you book.

Joints and surfaces we work on

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

For landlords and businesses

Hotels need rooms back in use, so the work can be planned room by room around your bookings where we can. Hotel work is part of what we do, alongside homes and businesses.

Whether it’s one flat or a portfolio, you get the same standard of work: old sealant fully removed, joints prepared properly and a 12-month guarantee.

Aftercare tips

Joint life depends on how it’s used and looked after. We suggest:

  • Do not leave a drip for the next storm
  • Look over the glazing joints once a year
  • Avoid strong solvents on or near the sealant
  • Stick to mild cleaners on glass

Use mild cleaners on and around the silicone. Strong solvents can soften or mark it.

Drips or damp near a glazing joint shouldn’t be ignored. It may be sealant, or something else and we’ll find out which.

DIY sealant or a professional job?

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.

What a professional job adds is preparation and the right product. We take joints back to clean, dry surfaces, and the sealant is chosen for how the joint moves and where it is.

Common questions in Cold Harbour

Do you work for landlords with property near Charing station?

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

Do you cover smaller places like Cold Harbour?

Yes, Cold Harbour is covered. Our work covers London and the South East, from towns to the smallest places. The journey is planned ahead, so it helps to know about access.

Where are you based?

We’re a Crawley-based firm, with over 20 years’ experience. We work across South East England, London and Scotland.

Can I add another job to the visit?

Of course. Doing several areas at once is generally more efficient.

Should I try DIY first?

For a simple, easy-to-reach joint, a careful DIYer can do a reasonable job. Most DIY failures come from sealing over old material, wet joints or too much sealant.

Can you match the sealant colour?

Generally, yes. Sealants come in white, clear, grey and other colours, and we agree the colour with you before we start.

Do the sealants smell?

Possibly a little. Any smell clears as the sealant cures.

What do you put in the joint?

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

What glazing silicone looks like in Cold Harbour

The South East is one of the drier parts of the UK, though outdoor sealant still has to go onto a dry joint, so the forecast decides the day. Historic houses like Belmont House and Gardens (about 3.8 miles north-east) are a reminder that the area around Cold Harbour has older buildings as well as new. Where a home is older, older timber frames in brick or stone need a different approach from a modern uPVC window.

Homes close to Church of St Lawrence include some older properties, and frames set in older brick or stone need a sealant that suits the wall as well as the frame.

Cold Harbour is about 7 miles south-west of Faversham, in Kent. Our applicators cover glazing silicone for householders, landlords and businesses in Cold Harbour and the surrounding area. We cover 922 towns and villages across Kent, large and small. For nearby work, see our Chelmsford page (37 miles or so).

Postcode districts we cover here for glazing silicone: ME17. Nearby, we also carry out glazing silicone in Warren Street (1 mile north-west), Payden Street (1 mile north-west), Lenham Heath (2 miles south-west), Charing Heath (2 miles south) and Lenham Forstal (2 miles south-west). Larger places within reach include Maidstone (11 miles west), Ashford (8 miles south-east), Canterbury (14 miles east), Sittingbourne (7 miles north), Whitstable (14 miles north-east) and Faversham (7 miles north-east).

What’s near Cold Harbour

In Cold Harbour, that means homes and buildings near The Harrow pub and Spuckles and Kennelling Woods. For rail, the closest station is Charing station, about 2.3 miles south of the centre. A little further out are Newnham Castle (3.4 miles north).

Map of Cold Harbour © OpenStreetMap contributors

How the visit works

When we get to you, we compare the joints with what we discussed. If we find something unexpected, we talk it through with you first. After that, the work takes anything from an hour or two to most of a day, depending on the size of the job. Somewhere as small as Cold Harbour, 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. The failed silicone is cut out without marking the glass or frame.
  3. The joint is cleaned and degreased.
  4. A neutral-cure glazing silicone is applied and tooled.
  5. Each joint is checked and, where possible, water-tested.

Preparing for the visit

  • Where the joints are inside, avoid wetting them before we arrive
  • For business premises, tell us about site rules or sign-in
  • Keep pets and children clear of the area while we work

Getting a quote

We don’t publish a price list. Instead, your job gets its own clear quote. To get started, phone 0345 464 0079 or email us.

Get a quick quote

Related advice

Signs you need glazing silicone in Cold Harbour

Shower screen silicone gets wet every day. Mould gets into it and the edges begin to peel.

People normally contact us after spotting something like this:

  • Leaks from the base of a shower screen
  • Mouldy sealant around glass panels
  • Leaking glazing joints on a rooflight
  • Conservatory leaks at frame and glazing joints

For landlords with property near Charing station, a shower screen or conservatory joint that leaks is easier to reseal while the property is empty.

Before booking anyone

  • Whether they’re fully insured
  • Is the old sealant removed completely?
  • Is VAT in the price?
  • What the cure time is

How to choose a mastic man

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