Oxfordshire · England
Lewknor Glazing Silicone
Glazing silicone in Lewknor from a team with over 20 years’ experience. Rated 4.9 on Google from 180+ five-star reviews.
- Sealant that was laid over old silicone and failed
- Conservatory leaks at frame and glazing joints
- Water escaping where a screen meets the wall
How the job changes by surface
Glass-to-glass joints
Frameless glass corners and panels are joined with silicone. We reseal with a suitable glazing silicone.
Shower screens
Most shower screen leaks come from the wall or tray joint. We reseal both with anti-fungal silicone.
Glazing silicone for homes and businesses in Lewknor
Our work covers conservatory joints, rooflights and glass panels plus shower screens and the bases of glass balustrades. The old sealant comes out, the joint is cleaned and new silicone goes in. Typical jobs include drips on the inside of a conservatory window and mouldy sealant around glass panels, on shower screens, glass-to-frame joints and glass-to-glass joints.
Around Lewknor, 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 stand behind the work with a 12-month guarantee.
- Place
- Lewknor (OX49)
- Wider area
- Oxfordshire
- Guarantee
- One year on every job
- Quote
- A clear quote up front
- Call
- 0345 464 0079
- Last updated
- 26 October 2026
Can I do it myself?
Sealing over old silicone is the commonest DIY error. Silicone doesn’t stick to old silicone, so it lifts and traps water and mould underneath. Everything old must be removed first.
Too much sealant is as bad as too little. A heavy bead looks messy and copes badly with movement, and getting the depth right matters as much as the look.
What glazing silicone looks like in Lewknor
Rainfall in the South East is lower than in much of the UK, yet outdoor joints still have to be sealed dry, so jobs are booked with the weather in mind. With historic houses such as Adwell House (about 1.6 miles north-west) nearby, there’s older building stock in the area around Lewknor as well as newer homes. 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.
In the older streets around Church of St Margaret, replacement windows fitted into old openings often leave uneven gaps that need backing and a flexible joint.
Lewknor is about 5 miles south of Thame, in Oxfordshire. Anywhere in OX49, we cover glazing silicone for homes and businesses. Lewknor is one of 443 places in Oxfordshire where we work for glazing silicone. For nearby work, see our Oxford page, about 12 miles away.
All of OX49 is covered for glazing silicone. If you need glazing silicone at a property on High Street, Weston Road and Lewknor Close or anywhere close by, we can help. Neighbouring places we cover for glazing silicone include South Weston (1 mile north-west), Aston Rowant (1 mile north-east), Postcombe (1 mile north), Shirburn (1 mile south-west) and Kingston Blount (2 miles north-east). Further out, we also cover Oxford (12 miles north-west), Didcot (13 miles west), Abingdon-on-Thames (13 miles west), Thame (5 miles north), Henley-on-Thames (10 miles south) and Benson (7 miles south-west).
What’s near Lewknor
In Lewknor, that means homes and buildings near Ye Olde Leathern Bottle Public House and Icknield Community College and the streets around them. Other landmarks nearby include Thame Community Hospital (5 miles north). Green spaces nearby include Aston Rowant NNR and Bald Hill.
Common questions in Lewknor
Will you come out to Lewknor?
Yes, smaller places are covered as well as towns. Our work covers London and the South East. Just mention lanes, gates or anything else about the route when you book.
Is glazing silicone in Lewknor guaranteed?
All our work, in Lewknor and everywhere else, comes with a 12-month guarantee. We’re fully insured, and an ARBOMaster approved applicator.
Do I have to be there?
If the work is inside, we need someone to let us in. Once we’ve agreed the job, you do not need to watch us work.
Can you replace a misted double-glazed unit?
Glass replacement is not our trade. We reseal the joints around it and can tell you if a unit seems to have gone.
What do you put in the joint?
We choose the sealant for the joint, not the other way round. Where it moves, gets wet or faces the weather makes a difference, and we will tell you what we’re using.
Can you quote for more than one area?
Yes, and it often makes sense. Combining jobs makes good use of the visit, so mention them when you ask for a quote.
How long should I leave it?
Most sealants are touch-dry well before they’re fully cured. We will give you the cure time for the product we used before we leave.
Will there be a smell?
There can be a smell while the sealant cures, but it fades. Ventilation helps.
When to call us in Lewknor
Sunlight breaks sealant down, especially on conservatory roofs. It goes brittle, cracks and stops sticking on the glass.
The most common problems we see are:
- Water running down inside the glass
- Leaks where conservatory glass meets the frame
- Failed sealant around rooflight glass
- Glass-to-glass joints that have split
Managing a site like Lewknor Church of England Primary School? Then its window and door frames need their mastic kept sound, just like a home’s.
Comparing quotes
- Whether they’re fully insured
- What preparation is included
- What the quote includes, VAT included or not
- What product goes in the joint
What we do, step by step
Every visit runs the same way: we check the joints, mask and protect the surrounding surfaces, carry out the job and tidy away. Most jobs take a few hours for most jobs. Somewhere as small as Lewknor, access is often the only tricky part. If the job is outside, mention outbuildings, exposed walls and how to reach them.
- First we agree the joints to be done.
- Old sealant is removed from the glass and frame.
- We clean and prepare the joint.
- We apply and tool the new silicone.
- The joints are checked before we leave.
How to prepare
- Mention any tricky access
- Mention if the joints have been sealed before
- Let us know about parking restrictions
How to get a quote
There’s no standard price list, because every job is different. Instead, we give you a clear quote for your job. To arrange one, call 0345 464 0079 or send us an email.
Advice
Places near Lewknor
More services for Lewknor
Why deal with it now?
Fixing a leaking screen early protects what’s underneath. Water from a failed joint can soak into the floor before it shows. Where a wall is exposed, as many are in small places like Lewknor, wind-driven rain gets into any failed joint, and older walls, once damp, take a long time to dry.
Homes and businesses are quoted the same way: the amount of work, the access and the products needed, along with when we can work on site. Call for a quick quote and we will go through it with you.
Why book with us
- Every job guaranteed for a year
- Colour picked to suit the job
- We’re fully insured
- Rated 4.9 stars on Google
Take a look at what affects the cost and our reviews.
What we can’t put right
Sealant isn’t the answer to every problem, and we’d rather say so up front. Sealant will not put right:
- A roof that has moved or dropped
- Frames that have decayed or split
- A sealed unit that has misted inside
Not sure which it is? You can call 0345 464 0079 or email us and we will tell you honestly before you book.
Joints and surfaces we work on
- Glass balustrade bases
- Shower screens
- Rooflights
- Glass-to-frame joints
- Glass-to-glass joints
- Conservatory frames
Landlord and commercial work in Lewknor
From a single let to a portfolio, you get the same standard of work: old sealant fully removed, joints prepared properly and a one-year guarantee.
Letting agents often deal with us directly. Tell us the address, the job and how access works.