Hampshire · England
Glazing & conservatory sealant in Middleton, Hampshire
Professional glazing silicone in and around Middleton, with old sealant always removed completely and a 12-month guarantee.
- Cracked silicone between glass panels
- Silicone pulling away from the glass
- Leaking glazing joints on a rooflight
How we handle glazing silicone in Middleton
Sealant on glazing doesn’t last for ever. Sun, rain and movement wear it down, and once it cracks, water follows. Resealing puts that right. Typical jobs include stained, discoloured glazing silicone and glass-to-glass joints that have split, on conservatory frames, rooflights and shower screens.
Mastic can only go onto a dry, clean joint, so window work in Middleton is booked around the forecast. Tell us about access to every side of the house, including upper-floor windows.
There’s a 12-month guarantee on every job, whatever its size.
- Place
- Middleton (SP11)
- Wider area
- Hampshire
- Guarantee
- 12 months on all our work
- Quote
- A clear quote up front
- Call
- 0345 464 0079
- Page updated
- 26 October 2026

How it works
There isn’t much for you to do on the day. Show us the job and we will take it from there. The job generally takes anything from an hour or two to most of a day, depending on the size of the job, including the tidy-up. Somewhere like Middleton needs a little journey planning: let us know about lanes, gates and parking. Everything for the job comes with us, so a second trip is avoided where possible.
- We trace the leak and confirm it’s a sealant joint.
- We remove the old sealant carefully.
- The joint is cleaned and degreased.
- A neutral-cure glazing silicone is applied and tooled.
- Each joint is checked and, where possible, water-tested.
Preparing for the visit
- Move anything stored near the joints
- Where the joints are inside, avoid wetting them before we arrive
- Keep children and pets away from the work area
Getting a quote
We do not publish a price list, as no two jobs are quite the same. Instead, your job gets its own clear quote. To get started, call 0345 464 0079 or drop us an email.
Related advice
Why it’s worth doing now in Middleton
Topping up old silicone can look like a fix, but silicone doesn’t stick to silicone, and the leak generally returns. Cutting out and resealing properly lasts. In a small place like Middleton, homes can be exposed to wind and rain, which finds any gap, and older walls, once damp, take a long time to dry.
There are no prices on our website, because each job is priced on what it involves. For a quick quote, please ring 0345 464 0079 or drop us an email and we will talk you through it.
Why choose Mr Mastic in Middleton
- Experience in homes, commercial sites and hotels
- ARBOMaster approved applicator
- 20+ years of sealant experience
- Old sealant always removed completely
Take a look at what affects the cost and what customers say.
Middleton homes and the weather
London and the South East are among the drier parts of the UK, though outdoor sealant still has to go onto a dry joint, so the forecast decides the day.
If you let a flat or house near Whitchurch (Hampshire) station, leaking glazing joints, shower screens or conservatory seals are worth sorting between tenancies. For an older house near a landmark such as Church of St Nicholas, the joint between an old wall and a newer frame is normally the first place rain gets in.
Middleton is about 4 miles east of Andover, in Hampshire. Middleton gets the same service as everywhere we cover: old sealant removed completely, careful preparation and a one-year guarantee. Middleton is one of 683 towns and villages in Hampshire where we work. Our Southampton page covers work nearby (19 miles or so).
We work across the SP11 postcode area for glazing silicone and the streets around it. Other places close to Middleton include Longparish (1 mile east), Barton Stacey (2 miles south-east), Egypt (3 miles south-east), Sutton Scotney (4 miles south-east) and Hunton (4 miles south-east). We also work in nearby towns such as Basingstoke (13 miles east), Winchester (10 miles south), Andover (4 miles west), Chandler's Ford (14 miles south), Romsey (14 miles south) and Tadley (15 miles north-east).
Local landmarks in Middleton
We work in homes and buildings around The Plough Inn, among other places. The closest station to Middleton is Whitchurch (Hampshire) station, roughly 3.7 miles north-east. Other landmarks nearby include Andover War Memorial Hospital (4.8 miles west) and Finkley Down Farm Museum (3.4 miles north-west). The countryside around Middleton includes Anton Lakes and Mill Lake.
Looking after it afterwards
Joint life depends on how it’s used and looked after. We suggest:
- Keep air moving in the conservatory
- Keep scrapers and blades away from the silicone
- Do not leave a drip for the next storm
- Squeegee the shower screen after each use
Clear the conservatory gutters regularly so water does not back up against the seals. Blocked gutters can push water where it shouldn’t go.
Do not leave lifting or mouldy silicone on glazing. Peeling silicone lets water in behind and the leak gets worse.
Middleton questions
Is Middleton in your area for glazing silicone?
Yes. We work across London and the South East, and Middleton is part of that. Just ring 0345 464 0079 or send us an email with a few details of the job.
I let a flat near Whitchurch (Hampshire) station. Can you help?
Yes, rental work is part of what we do. You can phone 0345 464 0079 or send us an email with the address and a few details, and we will give you a fixed price before any work starts.
Is it possible to redo the silicone on a shower screen?
Yes. We cut out the old silicone and reseal the glass-to-wall and glass-to-tray joints.
What do you need from me for a quote?
Only a few details: where it is, what you’ve noticed and how we reach it. Then phone 0345 464 0079 or drop us an email.
Which silicone is used for glass joints?
Glass needs a sealant made for glazing. Ours is a neutral-cure glazing silicone and anti-fungal silicone in wet areas.
Where do you work from?
Mr Mastic is based in Crawley. Our applicators cover Middleton.
What do you put in the joint?
Each joint gets the product that suits it. Where it moves, gets wet or faces the weather makes a difference, and we will explain our choice.
How long will you be here?
Typically it takes a few hours, depending on how many joints need doing. Larger jobs naturally take longer, and we’ll tell you how long to expect.
What we are called out for in Middleton
Sunlight breaks sealant down, especially on conservatory roofs. It goes brittle, cracks and stops sticking to the glass and frame.
Look out for these signs:
- Leaks from the base of a shower screen
- Sealant that was laid over old silicone and failed
- Glazing silicone that has cracked or come away
- Black or yellowed silicone on glass joints
If you look after a building such as Longparish Church of England Primary School, the mastic around its windows and doors needs looking after like any other building’s.
Questions to ask before booking
- What the cure time is
- What the quote includes, VAT included or not
- Whether you can choose the colour
- What guarantee comes with the work
Honest limits
In fairness, some problems need a different trade:
- Misting between the panes of a double-glazed unit (a failed unit for a glazier)
- Glass that needs replacing
- Failed flashing around a conservatory
If in doubt, call 0345 464 0079 or drop us an email and we’ll say what we think before you book.
Joints and surfaces we work on
- Glass-to-glass joints
- Glass-to-frame joints
- Rooflights
- Glass balustrade bases
- Shower screens
- Conservatory frames
Landlord and commercial work in Middleton
Letting agents often deal with us directly. Tell us the address, the job and how access works and we will give you a quote.
If you manage several properties in or around Middleton, jobs at different addresses can be quoted together. Just tell us the addresses and what each one needs, and photos by email help.
Should I try it myself first?
Not every job suits DIY: high-level joints, fire-rated gaps, external movement joints and big jobs need the right product, the right access and the right method.
If you’ve already had a go yourself, that’s fine. We remove it and do the joint properly, so just mention it when you contact us.
