Hampshire · England
Holybourne Glazing Silicone
Problem with your glazing joints in Holybourne? We cut out the old, prepare the joints and apply the right sealant, and the work is guaranteed for a year.
- Mouldy sealant around glass panels
- Water getting into a conservatory at the joints
- Sealant that was laid over old silicone and failed
How we quote for glazing silicone
Call for a quick quote. The main things that affect it are:
- Whether there’s mould to deal with
- Whether the work is at height
- How many areas need sealing
- How much there is to do
Leaving a failed joint normally makes the job bigger, not smaller. If you are not sure whether it needs doing, ring 0345 464 0079 or email us for an honest opinion and a quote.
What we need to know
Photos help, but a description is a good start. Please mention:
- Where the job is, and your postcode
- Whether it has been sealed before
- The problem you’ve noticed
- Access, such as stairs, a lift or height
To get a quote, ring 0345 464 0079 or drop us an email and tell us where the job is and what the problem looks like. You will have a clear quote before work begins.
How we handle glazing silicone in Holybourne
We don’t replace glass, and misting between panes means a failed sealed unit. What we do is the silicone around the glass, which is where many leaks start. If you’re dealing with glass-to-glass joints that have split and conservatory leaks at frame and glazing joints, we can help, whatever the surface.
Around Holybourne, many homes face open ground, so their windows and doors take the full weather. 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
- Holybourne (GU34)
- Wider area
- Hampshire
- Guarantee
- 12 months on all our work
- Quotes
- Quoted before any work starts
- Phone
- 0345 464 0079
- Page updated
- 26 October 2026

Honest limits
In fairness, there are a few things sealant will not fix:
- Frames that have decayed or split
- A sealed unit that has misted inside
- A broken pane or roof panel
Not sure which it is? You can phone 0345 464 0079 or drop us an email and we’ll tell you honestly.
Surfaces we seal
- Glass-to-frame joints
- Conservatory frames
- Glass balustrade bases
- Shower screens
- Rooflights
- Glass-to-glass joints
What happens if it’s left?
Topping up old silicone can look like a fix, but silicone doesn’t stick to silicone, and the leak normally returns. A proper reseal is the lasting answer. Older cottages and farmhouses around Holybourne can have timber floors and frames, and water through a failed joint can rot timber if it’s left.
The cost reflects the work involved, not a rough estimate. That is why we ask a few questions first.
Why choose Mr Mastic in Holybourne
- Every job guaranteed for a year
- Sealant colour chosen to suit
- 20+ years of sealant experience
- We never seal over old sealant
See how sealant jobs are priced and our reviews.
For landlords and businesses
We regularly work with letting and managing agents. Send the address, what’s needed and the access arrangements.
Mouldy or split sealant often shows up at the end of a tenancy, and it’s easy to sort out between tenants. Several properties can be quoted together.
DIY sealant or a professional job?
Too much sealant is as bad as too little. A thick, smeared bead looks untidy and does not move well, and getting the depth right matters as much as the look.
What a professional job adds is preparation and the right product. Joints are cleaned back to sound surfaces and dried, and the sealant is matched to the joint and its conditions, and the work is guaranteed for a year.
Different surfaces, different methods
Shower screens
Silicone holds the water in on frameless screens. We reseal without scratching the glass.
Glass-to-frame joints
Old sealant is removed carefully from the glass and reseal with glazing silicone.
Towns and villages near Holybourne
More services for Holybourne
Questions from Holybourne
Do you cover Holybourne for glazing silicone?
Yes, Holybourne is within the area we cover. Our work covers London and the South East. You can call 0345 464 0079 or send us an email and let us know what needs doing.
Can you help a landlord with a rental near Alton station?
Yes, rental work is part of what we do. Just phone 0345 464 0079 or send us an email and tell us about the property, and we will give you a clear price.
What sealant do you use?
Quality sealants from brands including Arbo and Everbuild, chosen to suit the joint. We’ll tell you what we are using and why.
Do you have insurance?
Yes. We are fully insured, with over 20 years’ experience in sealant work.
Should I try DIY first?
You can, for simple jobs. Preparation is everything: all the old sealant out, and a clean, dry joint. We can always put it right if it fails.
Will there be a smell?
There can be a smell while the sealant cures, but it fades. Ventilation helps.
Where are you based?
Our base is in Crawley, and we work across South East England, London and Scotland.
Can you match the sealant colour?
In most cases you can choose. We’ll tell you which colours the right product comes in.
What happens on the day
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 anything from an hour or two to most of a day, depending on the size of the job, including the tidy-up. Somewhere like Holybourne 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.
- First we agree the joints to be done.
- Old sealant is removed from the glass and frame.
- The surfaces are cleaned with a suitable solvent.
- We apply and tool the new silicone.
- We inspect the work and test it where we can.
Preparing for the visit
- Mention if the joints have been sealed before
- Mention any parking rules near the property
- Mention any sign-in or site rules at work premises
How to get a quote
Asking for a quote is easy: let us know what needs doing and where and its rough size. A few photos by email make the job easier to understand.
Related advice
Frames and glazing around Holybourne
Rainfall in the South East is lower than in much of the UK, though outdoor sealant still has to go onto a dry joint, so the forecast decides the day. With historic houses such as Bentworth Hall (about 4.6 miles west) nearby, there’s older building stock in the area around Holybourne as well as newer homes. In older buildings, older timber frames in brick or stone need a different approach from a modern uPVC window.
Managing a site like Andrews' Endowed Church of England Primary School? Then its window and door frames need their mastic kept sound, just like a home’s. Letting a property close to Alton station? Then a shower screen or conservatory joint that leaks is easier to reseal while the property is empty. If you live in an older home near Holy Rood Church, replacement windows fitted into old openings often leave uneven gaps that need backing and a flexible joint.
Holybourne is about 2 miles north-east of Alton, in Hampshire. Every kind of property in Holybourne is covered for glazing silicone, old or new, large or small. The work is guaranteed for a year. Across Hampshire, we cover 683 places, and Holybourne is one of them. For nearby work, see our Reading page (20 miles or so).
Here we cover the GU34 postcode area for glazing silicone. Streets in the area include London Road, Carpenters Close and Inhams Road. Neighbouring places we cover for glazing silicone include Neatham (1 mile south-east), Alton (2 miles south-west), Upper Froyle (2 miles north-east), Wyck (2 miles south-east) and East Worldham (2 miles south). Within a short drive, we also cover Basingstoke (10 miles north-west), Farnborough (12 miles north-east), Fleet (9 miles north-east), Aldershot (10 miles north-east), Petersfield (11 miles south) and Yateley (13 miles north).
Near you in Holybourne
In Holybourne, that means homes and buildings near White Hart pub, Eggar's School and Treloar School, among other places. The closest station to Holybourne is Alton station, about 1.2 miles south-west. Well-known places in the area include Alton Community Hospital (2.4 miles south-west) and Allen Gallery (1.5 miles south-west). For a walk, there’s Holybourne Hill.
