Oxfordshire · England
Sand Mastic in Middle Aston
Sand mastic in Middle Aston from a team with over 20 years’ experience. 180+ five-star Google reviews and a 4.9 rating.
- Crumbling sand mastic round a window
- Mastic round period door frames that has failed
- Old cement repairs round a window that have failed
Looking after it afterwards
Once the sealant has cured, a few habits help it last:
- Keep modern sealant off the mastic
- Clear gutters so water doesn’t pour onto the windows
- Leave the new mastic unpainted
- Ask the planning authority about consent for listed or conservation-area homes
Avoid sealing over the mastic with silicone. If anything cracks, get it looked at rather than patching it.
Good mastic helps keep the frame dry. Failed mastic lets water reach the timber and timber that stays wet can rot.
Sand mastic in Middle Aston, done properly
We renew sand mastic around sash windows and doors in stone and brick. Out comes the old, loose mastic, the joint is prepared and new mastic is shaped by hand. Typical jobs include draughts and rain around sash boxes and old cement repairs round a window that have failed, across brick reveals, sash and case windows and stone surrounds.
Mastic can only go onto a dry, clean joint, so window work in Middle Aston is booked around the forecast. Tell us about access to every side of the house, including upper-floor windows.
A 12-month guarantee comes with the work, just as it does everywhere we cover.
- Place
- Middle Aston (OX25)
- Wider area
- Oxfordshire
- Guarantee
- A year, on every job
- Price
- A clear price before any work starts
- Telephone
- 0345 464 0079
- Last updated
- 26 October 2026
What sealant work cannot fix
Sealant is not the answer to every problem, and we’d rather say so up front. It will not solve:
- Masonry that needs repairing
- Sashes that rattle, stick or will not open
- Putty and glazing repairs
If in doubt, call 0345 464 0079 or drop us an email and we’ll say what we think before booking.
Joints and surfaces we work on
- Stone surrounds
- Timber door frames
- Period & listed homes
- Sash and case windows
- Tenement windows
- Brick reveals
How it works
A visit follows a simple pattern: we check the joints, mask and protect the surrounding surfaces, carry out the job and clear up. It generally takes a few hours per window, depending on the condition of the joints. For a village or hamlet like Middle Aston, the journey is planned in advance: tell us about narrow lanes, gates, long drives and where we can park. Everything for the job comes with us, so a second trip is avoided where possible.
- We start by checking each surround and agreeing the joints to renew.
- Old, loose mastic is raked out and the joint cleaned.
- We pack any deep gaps so the mastic sits at the right depth.
- Sand mastic is mixed and applied by hand, then shaped to the joint.
- The finish is dressed so it sits neatly against the stone or brick.
How to prepare
- Tell us about any previous sealing or DIY attempts
- Tell us about access, such as stairs, a lift or high-level joints
- Let us know if you’ve seen damp or leaks
Getting a quote
Call for a quick quote, or email us if that’s easier. Describe what needs sealing and we’ll explain what’s involved and give you a clear quote.
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Nearby places to Middle Aston
Other services in Middle Aston
Can I do it myself?
If you’ve already had a go yourself, that is fine. We cut it out and start again, so just mention it when you contact us.
A careful DIYer can reseal a simple joint, like a short, easy-to-reach joint indoors. Where it goes wrong is sealing over the old bead, working on a wet joint or overloading the gap.
Common questions in Middle Aston
Do you work for landlords with property near Heyford station?
Yes. We work for landlords and letting agents as well as householders. You can ring 0345 464 0079 or email us with the details for a clear quote.
Is Middle Aston within the area you cover?
Yes, we do. We work across London and the South East, from towns to the smallest places. The journey is planned ahead, so it helps to know about access.
How long will you be here?
Most jobs take a few hours for a single window, longer for several, including preparation and clearing up. Your quote will say how long we expect yours to take.
Do you take out the old sealant first?
Yes, always, and completely. New silicone does not stick to old silicone, so the joint is cleaned back first.
What should I tell you?
Only a few details: where it is, what you’ve noticed and how we reach it. Then call 0345 464 0079 or send us an email.
Is it messy?
Not at all. We work neatly, protect the area around the joints and tidy up afterwards.
Do you hold any approvals?
Yes. We’re approved under the ARBOMaster scheme.
How long does sand mastic take to harden?
It forms a skin fairly soon and it hardens fully over a longer time. Timing depends on the weather and the joint.
Why act early in Middle Aston
Gaps round a sash window let in rain and draughts. Left, water can reach the timber and the wall so renewing it early protects the window. Around Middle Aston, older homes often have timber in their floors and frames, and water through a failed joint can rot timber if it’s left.
Instead of a standard rate, we price the job in front of us: the amount of work, the old material and the access. You will know the price before we begin.
Why choose Mr Mastic in Middle Aston
- Trusted Arbo and Everbuild sealants
- Any old sealant cut out fully, not covered over
- Neat joints and a tidy finish
- Rated 4.9 stars on Google
How we quote for sand mastic
Call for a quick quote. The main things that affect it are:
- The old material and how stubborn it is
- The type of sealant required
- Working hours on commercial sites
- Whether the work is at height
There are no prices on our website, because the cost depends so much on the job itself. For a quick quote, please phone 0345 464 0079 or email us and we’ll talk you through it.
What we need to know
The more you tell us, the more accurate the quote. When you ask for a quote, tell us:
- How many joints, rooms or windows are involved
- A few pictures by email, if you can
- Any access issues, like height or stairs
- If someone has resealed it before
A good description makes for an accurate quote. Tell us where the job is, what’s wrong and how much there is.
Sand mastic in Middle Aston: local notes
The South East is one of the drier parts of the UK, but outside sealant still needs a dry, clean surface, so outdoor work is planned around the forecast.
In the older streets around Church of St Peter and St Paul, the joint between an old wall and a newer frame is usually the first place rain gets in. Rented homes near Heyford station change hands often, and any sash windows need sound mastic to keep draughts and rain out. Managing a site like Dr Radcliffe's Church of England Primary School? Then larger buildings have plenty of frames, and the mastic around each one ages.
Middle Aston is about 7 miles west of Bicester, in Oxfordshire. Jobs in Middle Aston get the same care as everywhere else we work: the old material taken out, joints prepared properly and a 12-month guarantee. Middle Aston is one of 443 towns and villages in Oxfordshire we cover for sand mastic. We also work in Oxford, about 13 miles from Middle Aston.
Postcode districts we cover here for sand mastic: OX25. Neighbouring places we cover for sand mastic include Steeple Aston (1 mile south), North Aston (1 mile north), Duns Tew (1 mile north-west), Dane Hill (2 miles north) and Steeple Barton (2 miles south-west). We also work in nearby towns such as Oxford (13 miles south), Banbury (9 miles north), Bicester (7 miles east), Witney (13 miles south-west), Kidlington (8 miles south) and Headington Quarry (13 miles south).
Local landmarks in Middle Aston
Typical jobs here are in homes near Red Lion pub and the streets around them. Middle Aston’s nearest station is Heyford station, roughly 1.5 miles south of the centre. Other landmarks nearby include Deddington Castle (2.9 miles north).
Landlords, agents and businesses in Middle Aston
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.
We also work for property managers and facilities teams. Several sites can go on one quote, and we are fully insured for the work.