Hampshire · England
Glazing & conservatory sealant in Over Wallop, Hampshire
Glazing silicone for conservatories, rooflights, glass panels and shower screens for homes and businesses in Over Wallop and across Hampshire. ARBOMaster approved applicators, fully insured, with a 12-month guarantee.
- Sealant that was laid over old silicone and failed
- Leaking glazing joints on a rooflight
- Failed joints on frameless glass
How the job changes by surface
Glass balustrade bases
The base of a glass balustrade is generally sealed. When it fails, water can sit in the channel.
Rooflights
Water around a rooflight isn’t always the sealant. We check which it is.
Glazing silicone for homes and businesses in Over Wallop
Cracked, stained or lifting silicone on glass spoils the look and lets water in. It comes off cleanly, without marking the glass before the new bead goes in. Typical jobs include silicone pulling away from the glass and a quick top-up bead that didn’t last, on glass-to-glass joints, rooflights and glass balustrade bases.
Somewhere as small as Over Wallop, older homes often have timber frames set in stone or brickwork. Older buildings like these don’t always suit modern silicone, and sometimes a traditional sand mastic is the better choice.
Every job comes with our 12-month guarantee, wherever you are in Hampshire.
- Place
- Over Wallop (SO20)
- Wider area
- Hampshire
- Cover
- 12 months on all our work
- Quote
- A clear price before we start
- Phone
- 0345 464 0079
- Last updated
- 26 October 2026

What we cannot put right
In fairness, there are a few things sealant won’t fix:
- A frame that needs repairing or replacing
- Structural problems with a conservatory roof
- Misting between the panes of a double-glazed unit (a failed unit for a glazier)
Not sure which it is? You can call 0345 464 0079 or email us and we’ll tell you honestly.
Joints and surfaces we work on
- Rooflights
- Glass balustrade bases
- Glass-to-frame joints
- Conservatory frames
- Glass-to-glass joints
- Shower screens
Questions from Over Wallop
Can you do glazing silicone in Over Wallop?
Yes. Our work covers London and the South East, and Over Wallop is part of that. Just phone 0345 464 0079 or send us an email with a few details of the job, and we will give you a clear quote.
Is Over Wallop within the area you cover?
Yes, smaller places are covered as well as towns. Our work covers London and the South East. Let us know about access, parking and anything unusual about getting there when you book.
Are you fully insured?
Yes. Mr Mastic is fully insured.
Can you reseal the base of a glass balustrade?
Yes. We cut out the failed sealant and reseal the base joint with a suitable product.
Can you just put new silicone over the old?
Topping up is a common cause of leaks. We remove the old silicone, clean the joint and reseal.
Is it possible to redo the silicone on a shower screen?
Yes. The old bead comes off without marking the glass, and the joints are cleaned and resealed.
Is it messy?
Tidy work is part of the job. Nearby surfaces are protected.
Can I add another job to the visit?
Yes. Several rooms, windows or areas can go on one quote.
Places near Over Wallop
What else we do in Over Wallop
How the visit works
On the day, there’s very little for you to do. Show us the job and we’ll take it from there. The work itself takes a few hours, depending on how many joints need doing, including the tidy-up. In a small place like Over Wallop, access is normally the main thing to plan. If the job is outside, mention outbuildings, exposed walls and how to reach them.
- 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.
- New glazing silicone goes in and is finished neatly.
- We inspect the work and test it where we can.
Getting ready for the visit
- Let us know if you’ve seen damp or leaks
- Mention any tricky access
- Mention if the joints have been sealed before
Ask for a quote
For a quick quote, get us on the phone, or email us if that’s easier. Tell us about the joints that need doing and we’ll talk you through the work before giving you a price.
Read more
What glazing silicone looks like in Over Wallop
Compared with the north and west, the South East gets less rain, but outside sealant still needs a dry, clean surface, so outdoor work is planned around the forecast.
For an older house near a landmark such as Church of St Peter, the joint between an old wall and a newer frame is generally the first place rain gets in. Schools such as Wallop Primary School are buildings too, and larger buildings have plenty of frames, and the mastic around each one ages.
Over Wallop is about 7 miles south-west of Andover, in Hampshire. Anywhere in SO20, our applicators can take on glazing silicone. Our area takes in 683 places across Hampshire. You can also see our page for Southampton, about 18 miles away.
Postcode districts we cover here for glazing silicone: SO20. If you need glazing silicone at a property on Station Road, King Lane and King Lane Cottages or a nearby road, we can help. If you’re just outside Over Wallop, we cover Middle Wallop (1 mile south-east), Kentsboro (2 miles north-east), Nether Wallop (2 miles south-east), Fox (3 miles north) and Amport (4 miles north). Further out, we also cover Winchester (13 miles south-east), Andover (7 miles north-east), Chandler's Ford (14 miles south-east), Romsey (12 miles south-east), Hyde (13 miles south-east) and Tidworth (7 miles north-west).
Around Over Wallop
We work in homes and buildings around The White Hart Inn and the streets around them. Over Wallop’s nearest station is Grateley station, about 2 miles north-west of the centre. The countryside around Over Wallop includes Winterbourne Downs RSPB reserve and Quarley Hill.
How we quote for glazing silicone
You’ll get a clear quote before work begins. It’s based on:
- Whether the work is at height
- How much old sealant there is and how hard it is to remove
- Any working-time requirements on site
- Which sealant suits the joint
We do not show prices on the website, because the cost depends so much on the job itself. For a quick quote, please ring 0345 464 0079 or drop us an email and we will talk you through it.
Asking for a quote
You do not need to know the technical terms. It helps if you can tell us:
- Where the job is, and your postcode
- The problem you’ve noticed
- Any previous sealing or DIY work
- Photos by email, if that’s easy
There’s no standard price list, as no two jobs are quite the same. Instead, your job gets its own clear quote. To arrange one, call 0345 464 0079 or email us.
Common problems we fix in Over Wallop
New silicone over old silicone won’t bond. Many failed joints we see have been topped up rather than cut out, and water gets between the layers.
These are the problems we are asked about most:
- Water running down inside the glass
- Sealant that was laid over old silicone and failed
- Glazing silicone that has cracked or come away
- Mouldy sealant around glass panels
For landlords with property near Grateley station, leaking glazing joints, shower screens or conservatory seals are worth sorting between tenancies.
Questions to ask before you book
- How long to leave it before use
- What happens if the job turns out different
- How the colour is chosen
- How the joint is cleaned and prepared
Why act early in Over Wallop
Leaks get worse, not better. Water can damage frames, walls, flooring and furniture, so it pays to deal with it early. Where a wall is exposed, as many are in small places like Over Wallop, wind-driven rain gets into any failed joint, and damp in older walls is slow to dry out.
Every job is a little different, so each one gets its own quote. Size, access and the product the joint needs all play a part, and we’ll explain the quote if you ask.
Why us?
- We agree the colour with you first
- White, clear, grey or another colour, product permitting
- Old sealant always removed completely
- Fully insured
Take a look at what affects the cost or our reviews.
Aftercare tips
Once the sealant has cured, a few habits help it last:
- Act on drips or damp patches early
- Squeegee the shower screen after each use
- Use a gentle glass cleaner and a soft cloth
- Keep air moving in the conservatory
Avoid scraping near the new silicone when cleaning the glass. Stick to a soft cloth.
If silicone on glass has cracked, water is already getting in. Resealing now is a small job compared with fixing water damage later.
