Oxfordshire · England
Glazing & conservatory sealant in Oxford, Oxfordshire
We cover Oxford 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.
- Failed joints on frameless glass
- Leaking glazing joints on a rooflight
- Stained, discoloured glazing silicone
Glazing silicone in Oxford
Glass replacement isn’t something we do and a misted double-glazed unit needs a glazier. Our work is the sealant joints, which is where many leaks start. We work on shower screens, glass-to-glass joints and rooflights, and the jobs we see most are stained, discoloured glazing silicone and water escaping where a screen meets the wall.
Plenty of homes in Oxford are rented, and windows are easy to overlook between tenancies. Gaps around a frame let in draughts and water, and tenants notice.
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
- Oxford (OX4, OX3, OX2, OX1)
- Region
- Oxfordshire
- Guarantee
- A year, on every job
- Quotes
- A clear quote up front
- Phone
- 0345 464 0079
- Last updated
- 26 October 2026
Honest limits
It helps to know what we cannot do too:
- A roof that has moved or dropped
- Frames that have decayed or split
- A broken pane or roof panel
If you’re not sure, just ring 0345 464 0079 or drop us an email and we’ll give you a straight answer before you book.
What we seal
- Glass-to-frame joints
- Rooflights
- Glass balustrade bases
- Glass-to-glass joints
- Conservatory frames
- Shower screens
Leave it or put it right?
Glazing joints need a sealant made for the job. General-purpose sealant from a DIY shop may not suit glass or the frame, so we use neutral-cure glazing silicone. For businesses in Oxford, a room closed because of a leak or mould costs more than the sealant, so it pays to replace failing joints before they get that far.
Commercial jobs are quoted on the same basis as homes: the amount of work, the access and the products needed, plus any working-time requirements on site. Call for a quick quote and we’ll explain what it covers.
Why choose Mr Mastic in Oxford
- White, clear, grey or another colour, product permitting
- Colour picked to suit the job
- Rated 4.9 stars on Google
- 12-month guarantee on every job
Take a look at what affects the cost or what customers say.
Do you need glazing silicone in Oxford?
Not every leak is a sealant problem: broken panels, roof problems and blocked gutters can all let water in. We find the cause before we seal anything.
People generally contact us after spotting something like this:
- Glass-to-glass joints that have split
- Drips on the inside of a conservatory window
- New silicone smeared over old sealant
- Glazing silicone that has cracked or come away
Rented homes near Oxford station change hands often, and glazing joints are worth checking at the end of a tenancy, before a small leak grows.
What to look for in a quote
- What insurance they hold
- Which colour the sealant will be
- Whether the sealant suits the joint
- How hidden problems are handled
Aftercare tips
So the new joints stay in good condition:
- Clean glass with a mild cleaner and a soft cloth
- Keep harsh solvents off the silicone
- Check the silicone on glass every year or so
- Open vents or windows to let moisture out
Don’t use blades or scrapers near the bead when you clean. Stick to a soft cloth.
Damp patches, drips and condensation along a joint are worth checking. The cause may be sealant or another part and we’ll find out which.
Oxford: your questions answered
What guarantee comes with glazing silicone in Oxford?
Every job comes with our 12-month guarantee, wherever it is. We’re also fully insured and ARBOMaster approved.
Do you work for landlords with property near Oxford station?
Yes, rental work is part of what we do. You can ring 0345 464 0079 or drop us an email with the address and a few details, and we’ll give you a fixed price before work begins.
Do you offer different sealant colours?
We’ll suggest a colour to suit the surroundings, from white and clear to greys and other shades. The choice depends on the product the joint needs.
Is it possible to redo the silicone on a shower screen?
Yes. We cut out the old silicone and reseal the glass-to-wall and glass-to-tray joints.
What do you put in the joint?
Each joint gets the product that suits it. Where it moves, gets wet or faces the weather makes a difference, and we’ll explain our choice.
Why not top up the existing silicone?
Silicone does not stick to silicone and water gets between the layers. The old bead always comes out first.
How long before the joint can be used?
Most sealants are touch-dry well before they’re fully cured. We will tell you how long to leave the joint.
Are you ARBOMaster approved?
Yes. We are ARBOMaster approved, the scheme for applicators of Arbo sealants.
Glazing silicone in Oxford: local notes
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 Holywell Manor (about 0.8 miles north-west) nearby, there’s older building stock in the area around Oxford as well as newer homes. Where a home is older, older timber frames in brick or stone need a different approach from a modern uPVC window.
Managing a site like East Oxford Primary School? Then the mastic around its windows and doors needs looking after like any other building’s. Homes close to St Clement's Church include some older properties, and the joint between an old wall and a newer frame is usually the first place rain gets in.
Oxford is in Oxfordshire. Homes, rented property, offices and hotels in Oxford is covered for glazing silicone. The work is guaranteed for a year. Across Oxfordshire, we cover 443 places, and Oxford is one of them.
Postcode districts we cover here for glazing silicone: OX4, OX3, OX2 and OX1. We cover properties on High Street, New High Street and Radcliffe Square and the roads around them. Oxford is on the A34 and A40, so it’s easy for us to get to. Nearby, we also carry out glazing silicone in St Clement's (1 mile west), Headington Hill (1 mile north-east), New Marston (1 mile north), Donnington (1 mile south) and St. Ebbes (1 mile west). Further out, we also cover Didcot (10 miles south), Bicester (11 miles north), Abingdon-on-Thames (6 miles south-west), Witney (11 miles west), Thame (11 miles east) and Wantage (14 miles south-west). Oxford is one of the larger places we cover in Oxfordshire.
Landmarks near Oxford
In Oxford, that means homes and buildings near The Star pub, Alexander Library of Ornithology and Headington Rye Oxford and the streets around them. Other local landmarks include Cheney School (under half a mile east) and South Park (within half a mile north-east). For rail, the closest station is Oxford station, roughly 1.6 miles west. Well-known places in the area include Warneford Hospital (within half a mile east) and Rumble Museum (within half a mile east). The countryside around Oxford includes CS Lewis Nature Reserve and Headington Hill.
What the job involves on each surface
Glass-to-glass joints
Frameless glass corners and panels are joined with silicone. We renew it with a clear or matching glazing silicone.
Glass balustrade bases
The base of a glass balustrade is generally sealed. Failed sealant there lets water collect.
Landlords, agents and businesses in Oxford
Failed sealant is one of the commonest items on a check-out report, and it’s easy to sort out between tenants. We can quote for more than one property at once.
We regularly work with letting and managing agents. Tell us the address, the job and how access works and we will give you a quote.
Towns and villages near Oxford
More services for Oxford
How the visit works
Our applicators work methodically: protection first, then preparation, sealing and a tidy-up. Typically it takes a few hours for most jobs. For homes and businesses in busier parts of Oxford, parking needs a little planning. Let us know about stairs, lifts or shared entrances too.
- We find where water is getting in and check whether it’s a sealant joint.
- We cut out the failed silicone, taking care of the glass and frame.
- The glass and frame are cleaned and degreased.
- Glazing silicone suited to the joint is applied and tooled.
- We look over every joint and, where we can, test it with water.
Preparing for the visit
- Keep children and pets away from the work area
- On commercial sites, let us know about site rules
- Clear items away from the joints we’re working on
Ask for a quote
We quote each job on its own, so the first step is telling us about yours. Just ring 0345 464 0079 or email us with the details.