Oxfordshire · England
Glazing & conservatory sealant in Postcombe, Oxfordshire
Glazing silicone for conservatories, rooflights, glass panels and shower screens in Postcombe, with a one-year guarantee on every job. Ask us for a quote.
- Cracked silicone between glass panels
- Stained, discoloured glazing silicone
- Sealant that was laid over old silicone and failed
Keeping the joints in good condition
Simple care keeps the joints in good condition. Our advice:
- Stick to mild cleaners on glass
- Check the gutters above the glazing for debris
- Avoid strong solvents on or near the sealant
- Check the silicone on glass every year or so
Don’t use blades or scrapers near the bead when you clean. A soft cloth or sponge is best.
If silicone on glass has cracked, water is already getting in. Renewing it early keeps it simple compared with fixing water damage later.
About our glazing silicone in Postcombe
We renew glazing silicone on conservatories, rooflights and glass panels plus shower screens and the bases of glass balustrades. Each joint is cut out, cleaned and resealed. If you have glass-to-glass joints that have split and drips on the inside of a conservatory window, we can put it right, on rooflights, glass balustrade bases and glass-to-glass joints alike.
Around Postcombe, many homes face open ground, so their windows and doors take the full weather. Exposed frames and sills lose their mastic sooner than sheltered ones.
A 12-month guarantee comes with the work, just as it does everywhere we cover.
- Location
- Postcombe (OX9)
- Wider area
- Oxfordshire
- Cover
- 12 months on all our work
- Quotes
- A clear price before any work starts
- Call
- 0345 464 0079
- Page updated
- 26 October 2026
Towns and villages near Postcombe
Other services in Postcombe
Should I try it myself first?
Not every job suits DIY: work at height, external movement joints, fire-rated sealant and large areas call for the right materials, safe access and experience.
If you’re set on DIY, put the effort into preparation: take out all the old sealant, make sure the joint is clean and dry, and give it the full cure time. If it does not work out, we can still put it right.
What we’re called out for in Postcombe
Silicone won’t bond to a dirty surface. Where the joint wasn’t cleaned and degreased, the bead can peel away early.
Any of these means the joints need attention:
- Rooflight joints letting water in
- Sealant that was laid over old silicone and failed
- Mouldy sealant around glass panels
- Water escaping where a screen meets the wall
Around Postcombe, as everywhere, glazing silicone is only as good as the preparation behind it.
Before booking anyone
- Whether you can choose the colour
- What guarantee comes with the work
- Are they insured?
- Who does the work, and how experienced they are
Work for landlords, hotels and businesses
Mouldy or split sealant often shows up at the end of a tenancy, and it’s quick to put right between tenancies. Several properties can go on one quote.
Hotels need rooms back in use, so we plan the work room by room. Hotel work is part of what we do, alongside homes and businesses.
How the visit works
Our applicators work methodically: protect, prepare, seal, tidy. For most jobs that takes anything from an hour or two to most of a day, depending on the size of the job. Somewhere like Postcombe needs a little journey planning: tell us about narrow lanes, gates, long drives and where we can park. We bring what the job needs, so it can be finished in one trip where possible.
- We look at the glazing and agree which joints need resealing.
- We cut away the failed silicone.
- The surfaces are cleaned with a suitable solvent.
- New glazing silicone goes in and is finished neatly.
- We inspect the work and test it where we can.
Preparing for the visit
- Mention any sign-in or site rules at work premises
- Tell us about any previous sealing or DIY attempts
- Keep pets and children clear of the area while we work
Get a quote
Asking for a quote is easy: tell us what needs doing and where, and roughly how big it is. A few photos by email make the job easier to understand.
Advice
Windows and doors in Postcombe
Historic houses like Adwell House (about 0.8 miles west) are a reminder that the area around Postcombe 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. The South East is one of the drier parts of the UK, yet outdoor joints still have to be sealed dry, so jobs are booked with the weather in mind.
If you live in an older home near Church of St Mary, frames set in older brick or stone need a sealant that suits the wall as well as the frame.
Postcombe is about 4 miles south of Thame, in Oxfordshire. We carry out glazing silicone for homes and businesses in Postcombe and nearby, as part of our work across Oxfordshire. Our Oxfordshire coverage runs to 443 places, and Postcombe is one of them. Our Oxford page covers work nearby (12 miles or so).
We work across the OX9 postcode area for glazing silicone. We cover properties on London Road, Salt Lane and Beech Farm Close and the roads around them. Neighbouring places we cover for glazing silicone include South Weston (1 mile south-west), Aston Rowant (1 mile east), Lewknor (1 mile south), Kingston Blount (2 miles east) and Crowell (2 miles east). We also work in nearby towns such as Oxford (12 miles west), Didcot (13 miles south-west), Abingdon-on-Thames (13 miles west), Thame (4 miles north), Henley-on-Thames (11 miles south) and Benson (7 miles south-west).
Near you in Postcombe
Locally, jobs take us to homes and businesses close to England's Rose pub, among other places. Well-known places in the area include Thame Community Hospital (3.8 miles north). Not far away are Aston Rowant NNR and Bald Hill.
Different surfaces, different methods
Shower screens
Black or peeling silicone on a screen lets water out. A full reseal sorts it.
Rooflights
We reseal the glazing joints on rooflights. If the leak is from the roof around it, a roofer needs to look.
What affects the cost of glazing silicone
Your quote is based on your job. We take into account:
- The product the joint needs
- The number and length of the joints
- Whether the work is at height
- How many areas need sealing
Doing several joints on one visit is normally more efficient than separate visits, so it’s worth mentioning everything you’d like done. We’ll give you a clear quote for the lot.
Asking for a quote
Before you ask for a quote, have a think about:
- The address or postcode of the job
- What’s wrong with the joints now
- How many joints, rooms or windows are involved
- How we’d reach the joints
We quote each job on its own, so start by telling us what you need. Just phone 0345 464 0079 or send us an email with the details.
Questions from Postcombe
Do you cover Postcombe for glazing silicone?
Yes. We work across London and the South East, and Postcombe is part of that. Just ring 0345 464 0079 or send us an email with a few details of the job.
What guarantee comes with glazing silicone in Postcombe?
All our work, in Postcombe and everywhere else, comes with a 12-month guarantee. We are fully insured, and an ARBOMaster approved applicator.
Do you work for hotels and businesses?
Yes, regularly. Larger jobs can be planned room by room or area by area to suit the site.
Where is Mr Mastic based?
We work from Crawley. Our applicators cover Postcombe, along with the rest of our area.
Can you do several jobs on one visit?
Yes, we can. More than one area can go on one quote.
Do I have to be there?
We need access to the joints, so we’ll agree that with you when we book. Indoors, that generally means someone at home.
Can you reseal a frameless shower screen?
We can. The old bead comes off without marking the glass, and the joints are cleaned and resealed.
Is balustrade sealant something you do?
We can. We cut out the failed sealant and reseal the base joint using a sealant that suits the materials.