Oxfordshire · England
Ascott-under-Wychwood Sand Mastic
Sand mastic for Ascott-under-Wychwood and the surrounding area: careful preparation, the right product and tidy work. Ask us for a quick quote.
- Mastic dropping out of the joint
- Cement or filler used on old window joints that has cracked
- Wind and rain getting in round a sash window
Sand mastic for homes and businesses in Ascott-under-Wychwood
We renew sand mastic around sash windows and doors set in stone or brick. The old mastic is raked out, the joint is prepared and new mastic is shaped by hand. We work on sash and case windows, stone surrounds and tenement windows, and the jobs we see most are weathered mastic on the most exposed windows and mastic round period door frames that has failed.
Outdoor sealant needs dry, clean surfaces, so work on frames around Ascott-under-Wychwood is planned for dry weather. Let us know about access to all the frames, upstairs ones included.
All our work is covered by a one-year guarantee.
- Place
- Ascott-under-Wychwood (OX7)
- Wider area
- Oxfordshire
- Guarantee
- A year, on every job
- Quotes
- Quoted before any work starts
- Telephone
- 0345 464 0079
- Last updated
- 26 October 2026
Windows and doors in Ascott-under-Wychwood
With historic houses such as Minster Lovell Hall (about 4.8 miles south) nearby, there’s older building stock in the area around Ascott-under-Wychwood 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. Compared with the north and west, the South East gets less rain, though outdoor sealant still has to go onto a dry joint, so the forecast decides the day.
In the older streets around Church of the Holy Trinity, the joint between an old wall and a newer frame is normally the first place rain gets in. Rented homes near Ascott-Under-Wychwood station change hands often, and any sash windows need sound mastic to keep draughts and rain out.
Ascott-under-Wychwood is about 6 miles north-west of Witney, in Oxfordshire. We provide sand mastic to homeowners, landlords and businesses in Ascott-under-Wychwood and nearby. 443 places in Oxfordshire are on our list. There’s also a page for Oxford, roughly 16 miles from Ascott-under-Wychwood.
Every address in OX7 is within our area for sand mastic, from the main roads to the quietest streets. Streets in the area include High Street, The Green and Church Close, all of which we cover. Nearby, we also carry out sand mastic in Ascott Earl (1 mile west), Ascott d'Oyley (1 mile south-east), Chilson (1 mile north-east), Shipton-under-Wychwood (1 mile west) and Lyneham (2 miles north-west). Larger places within reach include Witney (6 miles south-east), Carterton (7 miles south), Faringdon (15 miles south), Kidlington (12 miles east), Chipping Norton (5 miles north) and St John Street area (15 miles south-east).
Near you in Ascott-under-Wychwood
Ascott-under-Wychwood has its own railway station: Ascott-Under-Wychwood station. Not far away are Blenheim Farm.
Towns and villages near Ascott-under-Wychwood
What else we do in Ascott-under-Wychwood
What we can’t put right
Some problems need a builder, plumber or other trade rather than us:
- Sashes that need overhauling
- Timber that has rotted
- Whether work needs listed building consent
Not sure which it is? You can ring 0345 464 0079 or email us and we will tell you honestly before you book.
Joints and surfaces we work on
- Period & listed homes
- Sash and case windows
- Tenement windows
- Timber door frames
- Stone surrounds
- Brick reveals
Landlord and commercial work in Ascott-under-Wychwood
We regularly work with letting and managing agents. Tell us the address, the job and how access works.
If you manage several properties in or around Ascott-under-Wychwood, several properties can go on one quote. Just tell us the addresses and what each one needs, and photos by email help.
Why it’s worth doing now in Ascott-under-Wychwood
Not every draught comes from the sashes themselves. Gaps between the frame and the wall can be just as bad, and renewing the mastic closes them. Around Ascott-under-Wychwood, older homes often have timber in their floors and frames, where water from a failed joint can cause rot if it’s left.
The cost reflects the work involved, not guesswork. That’s why we ask about the job first.
What you get with us
- Any old sealant cut out fully, not covered over
- A 12-month guarantee on all work
- Tidy, careful work
- Trusted Arbo and Everbuild sealants
Surface by surface
Brick reveals
We rake out the old mastic and pack deep voids before pointing.
Period and listed homes
Many older homes were built with sand mastic round the windows. On listed buildings, check with your planning authority first.
Quotes for sand mastic in Ascott-under-Wychwood
You will get a clear quote before work begins. It takes into account:
- How many rooms, windows or areas are involved
- Any mould that needs treating
- Working hours on commercial sites
- How much there is to do
Leaving a failed joint normally makes the job bigger, not smaller. If you’re unsure, phone 0345 464 0079 or send us an email for an honest opinion and a quote.
What we need to know
There’s no need for technical detail. It helps if you can tell us:
- The type of property
- Whether it has been sealed before
- Roughly how big the job is
- Access, such as stairs, a lift or height
We do not publish a price list. Instead, your job gets its own clear quote. To get started, phone 0345 464 0079 or email us.
The process
You do not need to clear the whole room or building before we come, only the area right around the joints. We protect the rest, and the job takes anything from a few hours to a full day, depending on how many windows in most cases. For a village or hamlet like Ascott-under-Wychwood, 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 look at the surrounds with you and agree the joints to renew.
- We remove the old, loose mastic.
- We pack any deep voids first.
- The sand mastic is mixed and pressed into the joint by hand.
- The surface is finished to suit the stone or brick.
Getting ready for the visit
- Keep children and pets away from the work area
- Let us know about stairs, lifts or work at height
- Tell us about any previous sealing or DIY attempts
Get a quote
Every job is quoted individually. Just call 0345 464 0079 or email us with the details.
Read more
DIY sealant or a professional job?
The biggest DIY mistake is sealing over old sealant. Silicone doesn’t stick to old silicone, so it peels away and traps moisture behind it. All the old material has to come out first.
If you do try it yourself, take your time over the preparation: remove every trace of old sealant, clean and dry the joint, and follow the product’s cure time. If it fails, we can still redo it.
Ascott-under-Wychwood: your questions answered
Is Ascott-under-Wychwood within the area you cover?
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.
Can you do sand mastic in Ascott-under-Wychwood?
Yes, Ascott-under-Wychwood is within the area we cover. We work across London and the South East. You can ring 0345 464 0079 or drop us an email and tell us what needs doing, and we’ll give you a clear price.
Do you offer different sealant colours?
In most cases you can choose. We’ll tell you which colours the right product comes in.
Will the old sealant be removed?
Yes. We cut out all the old sealant and clean the joint.
Where is Mr Mastic based?
We’re based in Crawley, West Sussex, and we cover South East England, London and all of Scotland.
Do I need to be at home?
We need access to the joints, so we will agree that with you when we book. For inside work, that normally means someone being in.
Can new sealant go over the old?
No, because it fails. We remove every bit of old sealant first.
Is sand mastic better than silicone for my windows?
We’ll help you decide. Period homes often look best with sand mastic and newer frames suit modern sealant.