West Sussex · England

Glazing & conservatory sealant in Westbourne, West Sussex

Our applicators work in Westbourne on glazing silicone for conservatories, rooflights, glass panels and shower screens. Old material cut out, joints cleaned and sealed neatly and every job guaranteed for a year.

  • Drips on the inside of a conservatory window
  • Silicone pulling away from the glass
  • Failed joints on frameless glass

Glazing silicone near Westbourne

About our glazing silicone in Westbourne

Across Westbourne, we reseal glazing joints in homes, offices and hotels. Conservatories, rooflights, glass panels and shower screens are all part of the job, with a sealant chosen for the joint. We work on glass balustrade bases, rooflights and conservatory frames, and people most often call us about split or lifting silicone on glass and rooflight joints letting water in.

In a village or hamlet like Westbourne, older cottages and farmhouses often have timber windows set in stone or brick. Older buildings like these do not always suit modern silicone, and sometimes a traditional sand mastic is the better choice.

The work is covered for a year after we finish. If anything isn’t right with it, ring 0345 464 0079 or send us an email.

Applicator reaching up to seal an external door frame on a sunny day
Location
Westbourne (PO10)
Region
West Sussex
Guarantee
A year, on every job
Quotes
Quoted before any work starts
Phone
0345 464 0079
Last updated
26 October 2026

What sealant work cannot fix

Sealant is not the answer to every problem, and we’d rather say so up front. Sealant won’t put right:

  • A sealed unit that has misted inside
  • Cracked or broken glass
  • Rotten or badly damaged frames

If in doubt, phone 0345 464 0079 or send us an email and we’ll say what we think.

What we seal

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

Leave it or put it right?

Leaks get worse, not better. Water can damage frames, walls, flooring and furniture, so it pays to deal with it early. Around Westbourne, older homes often have timber in their floors and frames, and water through a failed joint can rot timber if it’s left.

What it costs depends on how much there is to do, how much old material has to come out and how easy the joints are to reach. You will have a clear quote before any work starts.

Why choose Mr Mastic in Westbourne

  • Over 20 years’ experience
  • A 12-month guarantee on all work
  • Colour picked to suit the job
  • Experience in homes, commercial sites and hotels

Read how sealant jobs are priced or what customers say.

What affects the cost of glazing silicone

Call for a quick quote. What matters most is:

  • The size of the job
  • When we can work, for business premises
  • Whether there’s mould to deal with
  • The number of rooms or windows

Rather than a set price list, we price the job in front of us: how many joints, what’s in them now and how we reach them. You will know the price before we begin.

Helping us quote

You do not need to know the technical terms. It helps if you can tell us:

  • Whether it has been sealed before
  • Access, such as stairs, a lift or height
  • The type of property
  • What the problem is, such as mould, gaps, leaks or cracking

We quote each job on its own, so the first step is telling us about yours. Simply ring 0345 464 0079 or drop us an email and describe the job, and pictures are welcome.

The process

On the day, we look over the joints with you first, so you know exactly what we are doing. We protect the surfaces around the joints before any work begins. Most jobs take a few hours, depending on how many joints need doing. For a village or hamlet like Westbourne, the journey is planned in advance: tell us about narrow lanes, gates, long drives and where we can park. Everything for the job comes with us, so a second trip is avoided where possible.

  1. We trace the leak and confirm it’s a sealant joint.
  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.

How to prepare

  • On commercial sites, let us know about site rules
  • Clear items away from the joints we’re working on
  • Where the joints are inside, avoid wetting them before we arrive

How to get a quote

For a quote, ring 0345 464 0079 or send us an email and tell us where the job is and what the problem looks like. We will give you a clear price before any work starts.

Ask for a quote

Advice

For landlords and businesses

Landlords and letting agents in Westbourne can book us as well as householders. Resealing between tenancies keeps a property looking cared for.

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.

Aftercare tips

To keep the joints looking good and working properly:

  • Get a new leak looked at quickly
  • Use gentle products around the joints
  • Stick to mild cleaners on glass
  • Clear the conservatory gutters regularly

On shower screens, wipe or squeegee after use and keep the room ventilated. It helps stop mould getting into the silicone.

A small conservatory leak soon spreads. Water runs along frames and down walls, so get it looked at when you first see it.

Common questions in Westbourne

Does the coastal weather in Westbourne affect outside sealant?

Coastal homes put outside sealant through more weather than inland ones, so preparation and the right sealant matter all the more. Walls facing the sea are normally the first to need attention.

Do you work for landlords with property near Emsworth station?

Yes. We work for letting agents and landlords as well as homeowners, and several properties can be quoted together. Just phone 0345 464 0079 or email us with the address and what needs doing, and we’ll give you a clear price.

Why not top up the existing silicone?

It doesn’t last. The new bead can’t grip the old one so we take it all out and start clean.

Can you reseal the base of a glass balustrade?

Yes, where the base is finished with sealant. Send us pictures and we’ll take a look when you phone 0345 464 0079 or drop us an email.

Can you fix a leaking conservatory?

In many cases, as long as sealant is the cause. We find where the water gets in first, so you know what you’re paying for.

Do you remove the old sealant?

Yes. Sealing over the old bead is the commonest cause of early failure, and it’s something we never do.

What information do you need?

Only a few details: the address or postcode, what’s wrong and any access issues. Then ring 0345 464 0079 or drop us an email.

Are you insured?

Yes. Mr Mastic is fully insured.

Frames and glazing around Westbourne

Westbourne is close to the coast, where wind-driven rain is a fact of life and, nearer the shore, so is salt air. Both are hard on glazing joints and frame seals, which can dry out and crack sooner where a building faces the weather. Rainfall in the South East is lower than in much of the UK, yet outdoor joints still have to be sealed dry, so jobs are booked with the weather in mind.

In the older streets around St John the Baptist's Church, the windows may be timber, sash or later replacements, and each needs the right sealant against the wall. If you look after a building such as Westbourne Primary School, its window and door frames need their mastic kept sound, just like a home’s. For landlords with property near Emsworth station, a shower screen or conservatory joint that leaks is easier to reseal while the property is empty.

Westbourne is about 3 miles east of Havant, in West Sussex. From the centre of Westbourne to the outskirts, glazing silicone is available for homes and businesses alike, from flats and houses to offices and hotels. Westbourne is one of 371 places in West Sussex where we work. There’s also a page for Portsmouth, about 8 miles away.

Work in PO10 works the same way as everywhere else we cover. Local streets include The Square, Church Road and Crockford Road. Close by, we work in Lumley (1 mile south), Woodmancote (1 mile east), Emsworth (1 mile south-west), Southbourne (1 mile south-east) and Denvilles (2 miles west). We also work in nearby towns such as Bognor Regis (12 miles south-east), Chichester (7 miles east), Selsey (11 miles south-east), Portfield (7 miles east), Yapton (14 miles east) and East Wittering (7 miles south).

What’s near Westbourne

We work in homes and buildings around Stansted Park, The Good Intent Public House and Bourne Community College and the streets around them. The nearest railway station is Emsworth station, roughly 1 mile south-west. A little further out are Warblington Castle (2.2 miles south-west) and Havant War Memorial Hospital (2.8 miles west). The countryside around Westbourne includes Stoke Down and Brook Meadow (Emsworth).

Map of Westbourne © OpenStreetMap contributors

Different surfaces, different methods

Shower screens

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

Glass-to-frame joints

The sealant must stick to glass and frame alike. We use a glazing silicone suited to each.

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