Isle of Wight · England
Alverstone Glazing Silicone
Specialist glazing silicone for Alverstone: the right sealant, proper preparation and a neat finish. Call for a quick quote.
- Glass-to-glass joints that have split
- Failed sealant around rooflight glass
- Water running down inside the glass
Signs you need glazing silicone in Alverstone
Heat and cold make glass and frames move at different rates. In time, the sealant splits or pulls away.
Signs it’s time to call us include:
- Water running down inside the glass
- Rooflight joints letting water in
- Cracked silicone between glass panels
- Water escaping where a screen meets the wall
If you live in an older home near All Saints' Church, frames set in older brick or stone need a sealant that suits the wall as well as the frame.
Before booking anyone
- Whether they seal over old material or remove it
- What insurance they hold
- When the joint can take water or movement
- Which sealant they’ll use, and why
Glazing silicone for homes and businesses in Alverstone
Glass replacement is not something we do, and misting between panes means a failed sealed unit. What we do is the silicone around the glass, which is where many leaks start. We work on glass balustrade bases, glass-to-frame joints and rooflights, and the jobs we see most are glass-to-glass joints that have split and water tracking down the inner face of the glass.
Somewhere as small as Alverstone, older homes often have timber frames set in stone or brickwork. Older buildings like these don’t always suit modern silicone, so the sealant has to be chosen to suit the building.
You’re covered for a year from the day we finish. If there’s a problem with it, please call 0345 464 0079 or send us an email.

- Place
- Alverstone (PO36)
- Wider area
- Isle of Wight
- Cover
- 12 months on all our work
- Quote
- Quoted before any work starts
- Phone
- 0345 464 0079
- Updated
- 26 October 2026
Places near Alverstone
More services for Alverstone
Common questions in Alverstone
Do you cover smaller places like Alverstone?
Yes, Alverstone is covered. We work across London and the South East, and smaller places are part of that. The journey is planned ahead, so it helps to know about access.
Is glazing silicone in a coastal place like Alverstone any different?
Coastal weather is harder on outside sealant: there’s more wind-driven rain and, closer to the shore, salt in the air. The right product, a clean joint and the right depth all help it cope.
Is the work guaranteed?
Every job comes with our 12-month guarantee, and we’re fully insured.
How much does glazing silicone cost in Alverstone?
The cost depends on the size of the job, access and how much old sealant has to come out. Call for a quick quote and we’ll talk you through it.
Is balustrade sealant something you do?
We can. The old sealant is removed and the joint resealed with a suitable product.
Where is Mr Mastic based?
Our base is in Crawley, and we work across South East England, London and Scotland.
Do I need to be at home?
Access is agreed with you when the job is booked. Indoors, that generally means someone at home.
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.
The process
A visit follows a simple pattern: we look at the joints together, mask and protect the surrounding surfaces, carry out the job and tidy away. It normally takes anything from an hour or two to most of a day, depending on the size of the job. For a village or hamlet like Alverstone, the journey is planned in advance: let us know about lanes, gates and parking. We bring what the job needs, so it can be finished in one trip where possible.
- First, we check where the water gets in.
- We remove the old sealant carefully.
- We clean the glass and frame so the new silicone bonds.
- A neutral-cure glazing silicone is applied and tooled.
- We check the finished joints and test with water where it’s safe.
Before we arrive
- Mention any tricky access
- Plan for the work area to be out of bounds to pets and children
- Mention any leaks or damp you’ve noticed
Get a quote
Need a quote? Please call 0345 464 0079 or email us with a few details. You’ll know what we plan to do, and what it will cost, before any work begins.
Read more
How to look after the new joints
Joint life depends on how it’s used and looked after. Here’s what we suggest:
- Clean glass with a mild cleaner and a soft cloth
- Squeegee the shower screen after each use
- Inspect the sealant on glazing annually
- Open vents or windows to let moisture out
Don’t use blades or scrapers near the bead when cleaning the glass. Stick to a soft cloth.
Act on black or lifting silicone early. Peeling silicone lets water in behind and the leak gets worse.
Alverstone homes and the weather
Alverstone is within about 2 miles of the coast, where wind-driven rain is a fact of life and, nearer the shore, so is salt air. That’s hard on glazing joints and frame seals, especially on the side facing the sea. The South East is one of the drier parts of the UK, but outside sealant still needs a dry, clean surface, so outdoor work is planned around the forecast.
Managing a site like Newchurch Primary School? Then the mastic around its windows and doors needs looking after like any other building’s. For landlords with property near Sandown station, leaking glazing joints, shower screens or conservatory seals are worth sorting between tenancies.
Alverstone is about 4 miles south of Ryde, in the Isle of Wight. Alverstone gets the same service as everywhere we cover: old sealant removed completely, careful preparation and a 12-month guarantee. Alverstone is one of 125 places in the Isle of Wight we cover for glazing silicone. For nearby work, see our Portsmouth page (11 miles or so).
Our applicators cover all of the PO36 postcode area for glazing silicone and the streets around it. We also cover the places around Alverstone: Alverstone Garden Village (1 mile north-west), Queen's Bower (1 mile south-west), Skinner's Hill (1 mile west), Adgestone (1 mile north-east) and Lake (1 mile south-east). Larger places within reach include Newport (5 miles north-west), Ryde (4 miles north), Cowes (8 miles north-west), Ventnor (5 miles south), East Cowes (8 miles north-west) and Oakfield (4 miles north). If you are somewhere remote, a little more planning is needed, so let us know when you get in touch.
Around Alverstone
Locally, jobs take us to homes and businesses close to Sandown Bay Academy, The Bay Church of England School and The Pointer Inn, among other places. The closest station to Alverstone is Sandown station, roughly 1.1 miles south-east of the centre. A little further out are Arthur Webster Memorial Hospital for Children (2 miles south) and Wight Aviation Museum (0.7 miles south). The countryside around Alverstone includes Brading Down and Alverstone Mead.
DIY versus a professional finish
Overfilling a joint is a classic DIY mistake. A heavy bead looks messy and copes badly with movement, and getting the depth right matters as much as the look.
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, then guaranteed for a year.
Why deal with it now?
A leaking joint won’t fix itself. Left, water can mark floors, damage plaster and rot timber so early action saves a bigger repair. In a small place like Alverstone, homes can be exposed to wind and rain, which finds any gap, and older walls, once damp, take a long time to dry.
Doing several joints on one visit usually makes better use of the time than several visits. You’ll get one clear quote for the whole job.
Why us?
- We agree the colour with you first
- Tidy, careful work
- 4.9 on Google from 180+ five-star reviews
- White, clear, grey or coloured to suit, where the product allows
See what affects the cost and what customers say.
Honest limits
Honest advice matters more to us than a booking, so here’s what new sealant will not do:
- Misting between the panes of a double-glazed unit (a failed unit for a glazier)
- Rotten or badly damaged frames
- Cracked or broken glass
If in doubt, phone 0345 464 0079 or drop us an email and we will say what we think before you book.
Surfaces we seal
- Conservatory frames
- Glass balustrade bases
- Rooflights
- Glass-to-frame joints
- Shower screens
- Glass-to-glass joints
What affects the cost of glazing silicone
The price is agreed before any work begins. It takes into account:
- When we can work, for business premises
- How much old sealant there is and how hard it is to remove
- Which sealant suits the joint
- Mould in or behind the old joints
The cost depends on the size of the job, how hard the old material is to remove and access to the work. You’ll have a clear quote before any work starts.
What we need to know
To make quoting easier, please include:
- The address or postcode of the job
- How we’d reach the joints
- The rough size of the job
- If someone has resealed it before
Quotes start with a quick conversation. Tell us what’s wrong, where it is and how much there is. Whenever you’re ready, call 0345 464 0079 or drop us an email.
