Oxfordshire · England
Window Mastic in South Hinksey
Window mastic in South Hinksey from a team with over 20 years’ experience. 180+ five-star Google reviews and a 4.9 rating.
- Rushed sealant from a window installation
- Water coming in at the bottom corners of a door
- Cold air getting in at the frame edge
South Hinksey homes and the weather
London and the South East are among the drier parts of the UK, but outside sealant still needs a dry, clean surface, so outdoor work is planned around the forecast. Historic houses like Holywell Manor (about 1.8 miles north) are a reminder that the area around South Hinksey has older buildings as well as new. Where a home is older, older timber frames in brick or stone need a different approach from a modern uPVC window.
Letting a property close to Oxford station? Then renewing tired window mastic between tenants heads off draught and damp complaints. For site and facilities teams at buildings such as New Hinksey Church of England Primary School, the mastic around its windows and doors needs looking after like any other building’s.
South Hinksey is about 2 miles south-west of Oxford, in Oxfordshire. For window mastic in and around South Hinksey, it’s easy to get a quote: please phone 0345 464 0079 or send us an email. We are based in Crawley and cover Oxfordshire. Our Oxfordshire coverage runs to 443 places, South Hinksey among them.
Every address in OX1 is within our area for window mastic, from the main roads to the quietest streets. Whether your property is on Barleycott Lane, St Lawrence Road and Church Close or anywhere close by, our applicators can take on the job. We also cover the places around South Hinksey: Hinksey Hill (1 mile south), New Hinksey (1 mile north-east), Redbridge (1 mile east), Grandpont (1 mile north) and Chilswell (1 mile south-west). Larger places within reach include Didcot (8 miles south), Bicester (13 miles north), Abingdon-on-Thames (4 miles south), Witney (10 miles west), Carterton (14 miles west) and Thame (13 miles east).
Landmarks near South Hinksey
In South Hinksey, that means homes and buildings near Alexander Library of Ornithology, Greyfriars Catholic School and Oxford Media & Business School. Nearby too are Raleigh Park (1.3 miles north-west) and The General Elliot pub (within half a mile north). The nearest railway station is Oxford station, about 1.5 miles north. A little further out are Oxford Castle and earlier settlement remains (1.4 miles north) and The Story Museum (1.3 miles north). For a walk, there’s Lashford Lane Fen and Harcourt Hill.
How we handle window mastic in South Hinksey
Homes in South Hinksey have every kind of window: uPVC, aluminium, timber and composite, plus patio doors, French doors and sills. Each gets a sealant chosen for the frame and the wall it meets. We work on patio & French doors, window sills and uPVC windows, and common reasons people get in touch are gaps where the sill meets the wall and water coming in at the bottom corners of a door.
Somewhere as small as South Hinksey, older homes often have timber frames set in stone or brickwork. Older buildings like these do not always suit modern silicone, so the sealant has to be chosen to suit the building.
All our work comes with our one-year guarantee.
- Location
- South Hinksey (OX1)
- Wider area
- Oxfordshire
- Guarantee
- A year, on every job
- Price
- A clear price before work begins
- Phone
- 0345 464 0079
- Updated
- 26 October 2026
Keeping the joints in good condition
Once the sealant has cured, a few habits help it last:
- Walk round the house once a year and look at the joints
- Use gentle cleaners on frames and sealant
- Wipe condensation off the frames
- Paint up to the joint, not over it
Most silicone sealants won’t take paint, so if you are planning to paint the frames or walls, tell us beforehand. We can use a paintable sealant where that matters.
Wet, windy weather is when failed mastic shows itself, but sealant goes on best when frames and walls are dry. Dealing with it when you first notice a crack avoids chasing leaks through the wet months.
How the visit works
Our applicators work methodically: protection first, then preparation, sealing and a tidy-up. Typically it takes most of a day for a typical house, less for a few frames and we leave things clean and tidy. Somewhere as small as South Hinksey, access is often the only tricky part. For outside work, also let us know about exposed walls and any outbuildings involved.
- We check each frame and agree which ones need doing.
- Next the failed sealant is cut away and the joint cleaned.
- Where gaps are deep, backing rod goes in first.
- A flexible, weatherproof sealant is applied in a colour to suit the frame.
- Finally we tidy up and check each joint.
Before we arrive
- Let us know if you’ve seen damp or leaks
- Let us know about earlier repairs to the joints
- Mention any sign-in or site rules at work premises
Get a quote
The more we know about the job, the more useful the quote. Tell us where the job is, what’s wrong and how much there is.
Related advice
When it is not the sealant
In fairness, there are a few things sealant won’t fix:
- Soft or decayed wood in the frame
- A door that needs adjusting, rehanging or new seals
- Faulty window hardware
If in doubt, call 0345 464 0079 or drop us an email and we will say what we think before you book.
Surfaces we seal
- Aluminium frames
- Patio & French doors
- Window sills
- Timber windows & doors
- Composite doors
- uPVC windows
What happens if it’s left?
Resealing frames is a short job: the visit takes a morning for a couple of windows and a door. Wait for damp to appear and there may be plaster and decorating to sort out too. Where a wall is exposed, as many are in small places like South Hinksey, 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. Call for a quick quote and we’ll explain what it covers.
Why us?
- 20+ years of sealant experience
- A 12-month guarantee on all work
- Any old sealant cut out fully, not covered over
- White, clear, grey or another colour, product permitting
Take a look at our cost guide and what customers say.
Landlord and commercial work in South Hinksey
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.
We also work for businesses, from offices to washrooms and kitchens. For commercial premises, we can talk through working times when we quote.
Common problems we fix in South Hinksey
Frames are never completely still. A plastic or aluminium frame lengthens in sunshine and shortens as it cools, while the brick or render around it hardly moves. If the sealant can’t stretch, it splits.
It’s worth asking for a quote if you see:
- Mastic that’s falling out in pieces
- Leaking joints at the ends of sills
- Cracked or shrunken mastic around the frame
- Whistling draughts around closed windows
For an older house near a landmark such as Church of St Lawrence, frames set in older brick or stone need a sealant that suits the wall as well as the frame.
What your quote should include
- Whether you can choose the colour
- Which sealant they’ll use, and why
- Are they insured?
- What the quote includes, VAT included or not
Can I do it myself?
The biggest DIY mistake is sealing over old sealant. New silicone will not bond to old, so it peels away and traps moisture behind it. Everything old must be removed first.
A DIY attempt doesn’t rule out a professional job. We cut it out and start again.
South Hinksey questions
Do you work for landlords with property near Oxford station?
Yes, rental work is part of what we do. Just call 0345 464 0079 or send us an email and tell us about the property, and we’ll send you a clear quote.
Do you cover South Hinksey for window mastic?
Yes. We work across London and the South East, and South Hinksey is part of that. Just call 0345 464 0079 or email us with a few details of the job.
How long before the joint can be used?
Different products cure at different speeds, so please follow the time we give you.
Are you fully insured?
Yes. Mr Mastic is fully insured, and we have been doing sealant work for more than 20 years.
How do I get a quote for window mastic in South Hinksey?
The cost depends on the size of the job, access and how much old sealant has to come out. Call for a quick quote and we will talk you through it.
Can resealing stop a draught around my window?
If the draught is coming in around the frame, yes. If it’s through the window’s own seals or a hinge, that is a different fix, and we will say so.
Do you have sealant for grey or black windows?
Yes. We can use white, brown, anthracite grey, black or clear, so the joint suits the frame.
Can you do several jobs on one visit?
Of course. Doing several areas at once is usually more efficient.