Hampshire · England
Glazing Silicone in Alton
We cover Alton for glazing silicone for conservatories, rooflights, glass panels and shower screens. Old material cut out, joints cleaned and sealed neatly and a 12-month guarantee.
- Stained, discoloured glazing silicone
- Glazing silicone that has cracked or come away
- New silicone smeared over old sealant
What we’re called out for in Alton
On shower screens, constant water and cleaning products wear silicone. Mould gets into it and the edges begin to peel.
The most common problems we see are:
- Leaks where conservatory glass meets the frame
- Rooflight joints letting water in
- Water running down inside the glass
- Silicone pulling away from the glass
In the older streets around Church of St Lawrence, frames set in older brick or stone need a sealant that suits the wall as well as the frame.
What to look for in a quote
- Whether they’re fully insured
- How the joint is cleaned and prepared
- Which colour the sealant will be
- When the joint can take water or movement
About our glazing silicone in Alton
Glazing silicone that has yellowed, blackened or come away looks poor and can leak. It comes off cleanly, without marking the glass and reseal the joint. We work on shower screens, glass-to-glass joints and glass balustrade bases, and the jobs we see most are black or yellowed silicone on glass joints and failed joints on frameless glass.
Walls in Alton that face the prevailing wind take the most weather, so the mastic there tends to fail first. Checking every frame, not just the obvious one, is time well spent.
We guarantee the work for a year. If something is not right with it in that time, tell us and we will put it right.
- Location
- Alton (GU34)
- Region
- Hampshire
- Cover
- One year on every job
- Quote
- A clear quote up front
- Telephone
- 0345 464 0079
- Page updated
- 26 October 2026
Why it’s worth doing now in Alton
Replacing windows or a shower screen isn’t needed for a failed joint. If the glass and frame are sound, new silicone is often all it takes, and we’ll tell you if that’s not the case. Gaps in sealant and mould in the bead never get better on their own, and in a busy household in Alton they spread with every shower and every downpour. Replacing the sealant now is the simplest fix.
Leaving a failed joint generally makes the job bigger, not smaller, because water and mould keep working on it. If you’re unsure, phone 0345 464 0079 or send us an email for an honest opinion and a quote.
What you get with us
- ARBOMaster approved applicator
- White, clear, grey or another colour, product permitting
- Colour agreed with you before work begins
- Colour picked to suit the job
Take a look at how sealant jobs are priced or what customers say.
Towns and villages near Alton
Also in Alton
Work for landlords, hotels and businesses
From a single let to a portfolio, the work is the same standard: old sealant fully removed, joints prepared properly and a 12-month guarantee.
If you manage several properties in or around Alton, jobs at different addresses can go on one quote. Send us the addresses and the work at each, and photos by email help.
What sealant work cannot fix
New sealant cannot fix everything, and we’ll tell you before any work starts. It won’t solve:
- Leaks from the roof covering or flashing (a roofer’s job)
- Glass that needs replacing
- Frames that have decayed or split
If you’re not sure, just ring 0345 464 0079 or email us and we’ll give you a straight answer before booking.
Surfaces we seal
- Rooflights
- Glass-to-glass joints
- Glass balustrade bases
- Conservatory frames
- Glass-to-frame joints
- Shower screens
What we do, step by step
A visit follows a simple pattern: we check the joints, mask and protect the surrounding surfaces, do the work and tidy away. Most jobs take a few hours, depending on how many joints need doing. Parking in a town like Alton is usually straightforward, but tell us if there’s a driveway or any restrictions, and mention if the work is upstairs, in a flat or high on the outside.
- First we agree the joints to be done.
- We cut away the failed silicone.
- 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.
Before we arrive
- Keep children and pets away from the work area
- Let us know about earlier repairs to the joints
- For indoor joints, keep the area dry beforehand if you can
Ask for a quote
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 email us.
Read more
How we quote for glazing silicone
Every job gets its own quote. This is what makes a difference:
- Any working-time requirements on site
- How much there is to do
- Access and height
- Any mould that needs treating
There are no prices on our website, because each job is priced on what it involves. For a quick quote, please call 0345 464 0079 or send us an email and we’ll talk you through it.
Helping us quote
The more you tell us, the more accurate the quote. When you get in contact, it helps to mention:
- Any previous sealing or DIY work
- Whether it’s a home or a business
- A few pictures by email, if you can
- Roughly how big the job is
To get a quote, phone 0345 464 0079 or send us an email with the location and a short description of the problem. You will have a clear quote before we start.
Your questions about glazing silicone in Alton
What guarantee comes with glazing silicone in Alton?
Every job comes with our 12-month guarantee, wherever it is. We are also fully insured and ARBOMaster approved.
Can you help a landlord with a rental near Alton station?
Yes. We work for landlords and agents as well as homeowners, and several properties can be quoted together. You can phone 0345 464 0079 or send us an email with the details for a clear quote.
How long before the joint can be used?
Many sealants skin over quickly but take longer to cure fully. We’ll give you the cure time for the product we used.
Do you have insurance?
Yes, we’re fully insured.
Is there any odour?
That depends on the sealant. Some smell for a while, some hardly at all, and any smell fades as they cure.
Can I choose the sealant colour?
Most of the time, yes. We will tell you which colours the right product comes in and agree one before any work starts.
Do I have to be there?
For indoor joints, yes, someone needs to let us in. Once we have agreed the job, you don’t need to watch us work.
Where is Mr Mastic based?
We work from Crawley. We cover Alton and the rest of Hampshire, along with the rest of our area.
Alton homes and the weather
Historic houses like Bentworth Hall (about 3.2 miles west) are a reminder that the area around Alton has older buildings as well as new. Where a home is older, older frames set in brick or stone need a sealant that suits them, and sometimes that’s traditional sand mastic. Compared with the north and west, the South East gets less rain, yet outdoor joints still have to be sealed dry, so jobs are booked with the weather in mind.
If you look after a building such as Saint Lawrence Church of England Primary School, the mastic around its windows and doors needs looking after like any other building’s. For landlords with property near Alton station, glazing joints are worth checking at the end of a tenancy, before a small leak grows.
Alton is about 10 miles south-east of Basingstoke, in Hampshire. From the centre of Alton to the outskirts, glazing silicone is available for homes and businesses alike. Alton is one of 683 towns and villages in Hampshire where we work for glazing silicone. We also work in Reading, about 21 miles from Alton.
Our applicators cover all of GU34 for glazing silicone. Glazing silicone is available to properties on High Street, Station Road and Goswell Square. Alton is on the A339 and B3004, so it’s easy for us to get to. Neighbouring places we cover for glazing silicone include Chawton (1 mile south-west), Holybourne (2 miles north-east), Neatham (2 miles north-east), East Worldham (2 miles south-east) and Golden Pot (2 miles north). We also work in nearby towns such as Basingstoke (10 miles north-west), Farnborough (13 miles north-east), Fleet (10 miles north-east), Aldershot (11 miles north-east), Petersfield (10 miles south) and Yateley (14 miles north-east).
Around Alton
Around Alton, our work takes us to homes and buildings near Amery Hill School, Treloar School and The 'Baker's Arms' Public House, among other places. There’s a railway station in Alton itself: Alton station. Other landmarks nearby include Allen Gallery (under half a mile east) and Alton Community Hospital (0.9 miles south-west). Not far away are Holybourne Hill.
Aftercare tips
How long the joints last depends on use and care. We suggest:
- Keep air moving in the conservatory
- Do not leave a drip for the next storm
- Check the gutters above the glazing for debris
- Stick to mild cleaners on glass
Keep conservatory gutters clear, so water drains away from the joints. Blocked gutters can push water where it shouldn’t go.
If silicone on glass has cracked, water is already getting in. Renewing it early keeps it simple, compared with repairing damaged frames or plaster.