West Berkshire · England
Glazing & conservatory sealant in Highclere, West Berkshire
Glazing silicone for conservatories, rooflights, glass panels and shower screens in Highclere, with a 12-month guarantee on every job. Ask us for a quote.
- Cracked silicone between glass panels
- Glazing silicone that has cracked or come away
- Shower screens leaking along the wall or tray
Glazing silicone in Highclere, done properly
Not every silicone suits glass. Our applicators use neutral-cure glazing silicone, which suits glass and most frame materials, finished with a neat, even bead. If you’re dealing with cracked silicone between glass panels and water getting into a conservatory at the joints, we can help.
Mastic can only go onto a dry, clean joint, so window work in Highclere is booked around the forecast. Let us know about access to all the frames, upstairs ones included.
There’s a 12-month guarantee on every job.
- Where
- Highclere (RG20)
- Wider area
- West Berkshire
- Cover
- A year, on every job
- Quote
- Quoted before any work starts
- Call
- 0345 464 0079
- Last updated
- 26 October 2026
What affects the cost of glazing silicone
The quote reflects the job in front of us. We look at:
- Whether old sealant or filler has to be cut out
- Which sealant suits the joint
- The number and length of the joints
- When we can work, for business premises
Commercial jobs are quoted on the same basis as homes: how much there is to do, how we reach it and what it needs, along with when we can work on site. Ask us for a quote and we’ll explain what it covers.
Asking for a quote
Photos by email are helpful but not essential. Please mention:
- The type of property
- What the problem is, such as mould, gaps, leaks or cracking
- Where the property is
- Roughly how big the job is
For a quote, phone 0345 464 0079 or email us and tell us where the job is and what the problem looks like. You’ll have a clear quote before we start.
What we do, step by step
There is not much for you to do on the day. Point us to the joints and we will get on with it. The work itself takes a few hours for most jobs from start to finish. Somewhere like Highclere needs a little journey planning: let us know about lanes, gates and parking. We bring what the job needs, so it can be finished in one trip where possible.
- We trace the leak and confirm it’s a sealant joint.
- The failed silicone is cut out without marking the glass or frame.
- The joint is cleaned and degreased.
- We lay the new bead and tool it smooth.
- Each joint is checked and, where possible, water-tested.
Before we arrive
- Let us know about stairs, lifts or work at height
- Let us know about parking restrictions
- Let us know if you’ve seen damp or leaks
Ask for a quote
Every job is quoted individually. Just phone 0345 464 0079 or send us an email with the details, and pictures are welcome.
Read more
Aftercare tips
Aftercare is simple, and it makes a real difference:
- Keep harsh solvents off the silicone
- Keep air moving in the conservatory
- Don’t use a blade near the sealant
- Use a gentle glass cleaner and a soft cloth
Clear the conservatory gutters regularly so water does not back up against the seals. Overflowing gutters can cause leaks of their own.
Cracked glazing silicone means the joint has failed. Resealing now is a small job, compared with repairing damaged frames or plaster.
Also near Highclere
Also in Highclere
When something else is needed
We’d rather tell you now than do work that won’t last, so these are the limits:
- A frame that needs repairing or replacing
- A roof that has moved or dropped
- Misting between the panes of a double-glazed unit (a failed unit for a glazier)
Not sure which it is? You can phone 0345 464 0079 or email us and we will tell you honestly before you book.
Surfaces we seal
- Conservatory frames
- Glass-to-glass joints
- Shower screens
- Glass balustrade bases
- Rooflights
- Glass-to-frame joints
Frames and glazing around Highclere
Rainfall in the South East is lower than in much of the UK, but outside sealant still needs a dry, clean surface, so outdoor work is planned around the forecast. With historic houses such as Highclere Castle (about 1.4 miles south-east) nearby, there’s older building stock in the area around Highclere as well as newer homes. In older buildings, older timber frames in brick or stone need a different approach from a modern uPVC window.
If you let a flat or house near Newbury station, leaking glazing joints, shower screens or conservatory seals are worth sorting between tenancies. Managing a site like Woolton Hill Junior School? Then the mastic around its windows and doors needs looking after like any other building’s.
Highclere is about 4 miles south-west of Newbury, in West Berkshire. Highclere gets the same service as everywhere we cover: old sealant removed completely, careful preparation and a 12-month guarantee. Across West Berkshire, we cover 155 places, and Highclere is one of them. There’s also a page for Reading, about 19 miles away.
We cover every part of RG20 for glazing silicone and the streets around it. Glazing silicone is available to properties on Tubb's Lane, Arkwright Close and Coombe Corner. We also cover the places around Highclere: Penwood (1 mile north-east), Woolton Hill (1 mile north), Hollington (1 mile south-west), Enborne Row (2 miles north) and Wash Water (2 miles north-east). We also work in nearby towns such as Newbury (4 miles north-east), Thatcham (6 miles north-east), Burghfield Common (14 miles east), Speenhamland (5 miles north-east), Hungerford (8 miles north-west) and Lambourn (13 miles north-west).
Landmarks near Highclere
Around Highclere, our work takes us to homes and buildings near The Clere School. Highclere’s nearest station is Newbury station, about 4.3 miles north-east of the centre. Nearby you’ll also find Newbury Castle (3.9 miles north) and West Berkshire Community Hospital (5.5 miles north-east). Open spaces near Highclere include Audrey's Meadow and Sidown Hill.
FAQs for Highclere
Do you cover Highclere for glazing silicone?
Yes. We work across London and the South East, and Highclere is part of that. Just ring 0345 464 0079 or email us with a few details of the job, and we will give you a clear price.
Do you work for landlords with property near Newbury station?
Yes, landlords and agents are among the people we work for. You can call 0345 464 0079 or send us an email with the details for a clear quote.
Why not top up the existing silicone?
Silicone doesn’t stick to silicone and water gets between the layers. The old bead always comes out first.
Can you reseal a frameless shower screen?
Yes. We cut out the old silicone and reseal the glass-to-wall and glass-to-tray joints.
Can you replace a misted double-glazed unit?
No, our work is the silicone. Glass and sealed units need a glazier.
What guarantee do I get?
All our work has a one-year guarantee, and we’re fully insured.
Is a special sealant needed for glass?
A glazing-grade silicone is best. We use neutral-cure glazing silicone and anti-fungal silicone in wet areas.
Do you offer different sealant colours?
Yes. Sealants come in white, clear, grey and other colours, and we’ll agree it with you first.
Why act early in Highclere
If the problem is a misted unit or a broken panel, sealant will not help. We say so plainly, so you can call the right trade. Older cottages and farmhouses around Highclere can have timber floors and frames, where water from a failed joint can cause rot if it’s left.
Combining jobs into one visit generally makes better use of the time than several visits. You’ll get one clear quote for the whole job.
Why choose Mr Mastic in Highclere
- Full insurance on every job
- Anti-fungal silicone where joints get wet
- Over 20 years’ experience
- Neat joints and a tidy finish
Take a look at what affects the cost or our reviews.
Work for landlords, hotels and businesses
A neglected joint can let water reach the structure, which is a bigger problem in a rented property. Resealing at the right time is simple maintenance that we can handle for you.
We regularly work with letting and managing agents. Send the address, what’s needed and the access arrangements and we’ll give you a quote.
When to call us in Highclere
New silicone over old silicone will not bond. Many failed joints we see have been topped up rather than cut out, and water gets between the layers.
Signs it’s time to call us include:
- Leaks from the base of a shower screen
- Sealant that was laid over old silicone and failed
- Stained, discoloured glazing silicone
- Glass-to-glass joints that have split
In the older streets around Church of St Michael Archangel, the windows may be timber, sash or later replacements, and each needs the right sealant against the wall.
Comparing quotes
- How hidden problems are handled
- Whether they seal over old material or remove it
- What insurance they hold
- What preparation is included