West Sussex · England
Thorney Island Glazing Silicone
Professional glazing silicone in and around Thorney Island, with old sealant always removed completely.
- Conservatory leaks at frame and glazing joints
- Black or yellowed silicone on glass joints
- New silicone smeared over old sealant
Different surfaces, different methods
Rooflights
Rooflights get the full force of the weather. Its sealant ages faster than vertical joints.
Shower screens
Silicone holds the water in on frameless screens. We reseal without scratching the glass.
How we handle glazing silicone in Thorney Island
Glazing joints need a sealant made for glass. Our applicators use neutral-cure glazing silicone, which suits glass and most frame materials, finished with a neat, even bead. We work on glass balustrade bases, glass-to-glass joints and shower screens, and the jobs we see most are mouldy sealant around glass panels and shower screens leaking along the wall or tray.
Homes in small places like Thorney Island often stand in the open, with little to shelter their windows from wind and rain. That exposure dries out and cracks the mastic around frames and sills faster.
We guarantee the work for a year. If there’s a problem with our work within the year, let us know and we’ll sort it.
- Location
- Thorney Island (PO10)
- Region
- West Sussex
- Guarantee
- A year, on every job
- Quote
- Quoted before any work starts
- Call
- 0345 464 0079
- Page updated
- 26 October 2026
Why deal with it now?
Silicone around glazing needs the right product. A general-purpose tube may not bond well or may react with the frame so we choose a glazing silicone instead. Around Thorney Island, older homes often have timber in their floors and frames, and water through a failed joint can rot timber if it’s left.
We don’t show prices on the website, because each job is priced on what it involves. Call for a quick quote and we’ll talk you through it.
Why Thorney Island clients choose us
- Anti-fungal sanitary silicone in wet areas
- Colour agreed with you before work begins
- We leave the area clean and tidy
- A choice of colours where the product allows
Read how sealant jobs are priced and our reviews.
Questions from Thorney Island
Does living near the coast affect glazing silicone in Thorney Island?
Near the sea, outside joints face more wind, rain and salt than they would inland, so preparation and the right sealant matter all the more. It’s worth checking the walls that face the sea first.
Can you help a landlord with a rental near Southbourne station?
Yes, we work for landlords and agents. You can phone 0345 464 0079 or drop us an email with the address and a few details, and we’ll give you a fixed price before any work starts.
Do you hold any approvals?
Yes. Mr Mastic is an ARBOMaster approved applicator and we are fully insured too.
Can you just put new silicone over the old?
New silicone won’t bond to old silicone, so a top-up soon lets water through. We cut out the old sealant first.
Do you seal glass balustrade bases?
Yes. The sealant joint at the base can be renewed. We do not install or replace the glass.
What sealant do you use on glazing?
A neutral-cure glazing silicone suited to glass and the frame. In bathrooms, we use anti-fungal silicone.
Will resealing stop my conservatory leaking?
Yes, when the leak is a failed sealant joint. If the cause is the roof, a panel or a unit, we will say so.
Do I need to be at home?
Access is agreed with you when the job is booked. Indoors, that usually means someone at home.
Can I do it myself?
If you do try it yourself, take your time over the preparation: take out all the old sealant, make sure the joint is clean and dry, and give it the full cure time. If it fails, we can still redo it.
The difference is mostly in the preparation and the product. Joints are cleaned back to sound surfaces and dried, and the sealant is matched to the joint and its conditions.
Quotes for glazing silicone in Thorney Island
There’s no set price list, because no two jobs are the same. What we look at:
- The size of the job
- The number of rooms or windows
- How much old sealant there is and how hard it is to remove
- Any working-time requirements on site
The cost reflects the work involved, not a rough estimate. That’s why we ask about the job first and give you a clear quote before work begins.
What to tell us for a quote
When you call or email, these details help:
- If it’s domestic, commercial or a hotel
- Photos by email, if that is easy
- If someone has resealed it before
- Roughly how big the job is
For a quote, call 0345 464 0079 or drop us an email with the location and a short description of the problem. You’ll have a clear quote before we start.
Places near Thorney Island
Also in Thorney Island
How it works
At the end, we look at the finished work together and explain the cure time. The visit itself normally takes a few hours, depending on how many joints need doing, depending on the amount of work. In a small place like Thorney Island, access is usually the main thing to plan. For outside work, also let us know about exposed walls and any outbuildings involved.
- We look at the glazing and agree which joints need resealing.
- Old sealant is removed from the glass and frame.
- We clean and prepare the joint.
- We apply and tool the new silicone.
- We inspect the work and test it where we can.
Before we arrive
- For business premises, tell us about site rules or sign-in
- Plan for the work area to be out of bounds to pets and children
- Tell us about any previous sealing or DIY attempts
Getting a quote
Need a quote? Please ring 0345 464 0079 or drop us an email with a few details. We’ll explain what we’d do and give you a clear quote before we start.
Related advice
Common problems we fix in Thorney Island
Shower screen silicone gets wet every day. Mould grows into the bead and the joint starts to lift.
Look out for any of the following:
- Water running down inside the glass
- Glass-to-glass joints that have split
- New silicone smeared over old sealant
- Shower screens leaking along the wall or tray
Schools such as Thorney Island Community Primary School are buildings too, and the mastic around its windows and doors needs looking after like any other building’s.
Before booking anyone
- Is VAT in the price?
- Are they insured?
- Whether the sealant suits the joint
- What the cure time is
For landlords and businesses
Hotels need rooms back in use, so we plan the work room by room. Hotel work is part of what we do, alongside homes and businesses.
We work for letting agents and landlords as well as householders. Resealing between tenancies is a simple way to keep a property in good order.
Thorney Island homes and the weather
Thorney Island is within about 1 mile of the coast, and homes near the sea take more wind-driven rain, with salt in the air closer to the shore. Both are hard on glazing joints and frame seals, which can dry out and crack sooner where a building faces the weather. London and the South East are among the drier parts of the UK, yet outdoor joints still have to be sealed dry, so jobs are booked with the weather in mind.
Homes close to The Parish Church of St Nicholas include some older properties, and replacement windows fitted into old openings often leave uneven gaps that need backing and a flexible joint. Letting a property close to Southbourne station? Then glazing joints are worth checking at the end of a tenancy, before a small leak grows.
Thorney Island is about 4 miles south-east of Havant, in West Sussex. We carry out glazing silicone for householders, landlords and businesses in Thorney Island and nearby. Our West Sussex coverage runs to 371 places, and Thorney Island is one of them. You can also see our page for Portsmouth, about 7 miles away.
We work across the PO10 postcode area for glazing silicone. Glazing silicone is available to properties on Hunter Road, Emsworth Road and Spartan Close. Other places close to Thorney Island include West Thorney (1 mile south-east), North Hayling (1 mile west), Tye (1 mile south-west), Northney (1 mile west) and Emsworth (2 miles north). Larger places within reach include Bognor Regis (11 miles east), Chichester (7 miles east), Selsey (9 miles south-east), Portfield (7 miles east), Yapton (14 miles east) and East Wittering (5 miles south-east).
What’s near Thorney Island
We work in homes and buildings around Bourne Community College and Eames Farm and the streets around them. The closest station to Thorney Island is Southbourne station, about 1.8 miles north-east. Other landmarks nearby include Havant War Memorial Hospital (3.2 miles north-west) and Emsworth Museum (1.6 miles north). Green spaces nearby include Nutborne Marshes.