Oxfordshire · England
Shorthampton Sand Mastic
Traditional burnt sand mastic around sash and case windows and doors in stone and brick in Shorthampton, with a one-year guarantee on every job. Ask us for a quote.
- Mastic that needs renewing before redecorating
- Weathered mastic on the most exposed windows
- Crumbling sand mastic round a window
Sand mastic for homes and businesses in Shorthampton
Sand mastic is the traditional way to point the gap between a timber window frame and the stone or brick around it. It’s made from sand and a linseed-oil-based binder, applied by hand. On period homes, it looks right where silicone wouldn’t. We work on period & listed homes, stone surrounds and brick reveals, and people most often call us about crumbling sand mastic round a window and a silicone bead on a sash window that spoils the look.
Outdoor sealant needs dry, clean surfaces, so work on frames around Shorthampton is planned for dry weather. Let us know about access to all the frames, upstairs ones included.
Each job carries a 12-month guarantee, whatever its size.
- Place
- Shorthampton (OX7)
- Region
- Oxfordshire
- Guarantee
- One year on every job
- Price
- A clear quote up front
- Phone
- 0345 464 0079
- Last updated
- 26 October 2026
Shorthampton: your questions answered
Will you come out to Shorthampton?
Yes, smaller places are covered as well as towns. We work across London and the South East. Just mention lanes, gates or anything else about the route when you book.
Can you do sand mastic in Shorthampton?
Yes. We work across London and the South East, and Shorthampton is part of that. Just call 0345 464 0079 or drop us an email with a few details of the job.
Can you match the sealant colour?
We will suggest a colour to suit the surroundings. The choice depends on the product the joint needs.
Is consent needed for window work on a listed home?
Check with your local planning authority. They’ll tell you if consent is needed for work to your windows.
Will you leave a mess?
Not at all. We work neatly, protect the area around the joints and tidy up afterwards.
Where is Mr Mastic based?
Our base is in Crawley, West Sussex, and we cover South East England, London and all of Scotland.
Will there be a smell?
That depends on the sealant. Some products have a noticeable smell, others very little.
Do you guarantee sand mastic work?
Our 12-month guarantee covers every job, sand mastic included.
Nearby places to Shorthampton
Also in Shorthampton
When to call us in Shorthampton
Timber frames move with the seasons. The movement cracks the mastic over time.
The most common problems we see are:
- Patchy fillers round a sash window
- Gaps where the frame meets the masonry
- Mastic worn away on windows facing the weather
- Tired mastic found when preparing windows for paint
Rented homes near Charlbury station change hands often, and cracked sand mastic around sash windows lets in the draughts tenants complain about.
What to look for in a quote
- Whether they seal over old material or remove it
- How long to leave it before use
- The length of the guarantee
- What the quote includes, VAT included or not
Surface by surface
Timber door frames
Round a period front door, sand mastic gives the right look.
Brick reveals
An open joint at a brick reveal lets weather in. New mastic seals the gap.
Sand mastic in Shorthampton: local notes
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.
For an older house near a landmark such as Church of All Saints, the joint between an old wall and a newer frame is normally the first place rain gets in.
Shorthampton is about 6 miles north of Witney, in Oxfordshire. Anywhere in OX7, our applicators can take on sand mastic. Our Oxfordshire coverage runs to 443 places, and Shorthampton is one of them. Our Oxford page covers work nearby, about 15 miles away.
Jobs for sand mastic in OX7 works the same way as everywhere else we cover. We also cover Chilson (1 mile south-west), Chadlington (1 mile north), Ascott-under-Wychwood (2 miles south-west), Ascott d'Oyley (2 miles south-west) and Ascott Earl (2 miles south-west). Larger places within reach include Oxford (15 miles south-east), Banbury (15 miles north-east), Witney (6 miles south), Carterton (8 miles south), Kidlington (11 miles east) and Chipping Norton (4 miles north).
Around Shorthampton
The nearest railway station is Charlbury station, about 1.5 miles east of the centre. For a walk, there’s Blenheim Farm.
Landlords, agents and businesses in Shorthampton
From a single let to a portfolio, you get the same standard of work: the old material taken out, careful preparation and a 12-month guarantee.
Hotels need rooms back in use, so the work can be planned room by room. We have worked in hotels as well as homes and businesses.
Why deal with it now?
Draughts round a sash window are not always the sashes. Open mastic joints round the box can let air in, and renewing the mastic closes them. Around Shorthampton, older homes often have timber in their floors and frames, where water from a failed joint can cause rot if it’s left.
Rather than a set price list, we price the job in front of us: the amount of work, the old material and the access. You’ll know the price before we begin.
Why us?
- Approved under the ARBOMaster scheme
- 4.9 on Google from 180+ five-star reviews
- Quality sealants from Arbo and Everbuild
- Tidy, careful work
Read our cost guide and customer reviews.
How the visit works
When we get to you, we check the joints match what you told us. If anything is different, we explain it before carrying on. Most jobs then take a few hours for a single window, longer for several. Somewhere like Shorthampton needs a little journey planning: let us know about lanes, gates and parking. We bring what the job needs, so it can be finished in one trip where possible.
- Each surround is checked first.
- We rake out the old mastic and clean the joint.
- Large voids are packed out.
- We point the joint with sand mastic by hand.
- The finish is dressed neatly.
Before we arrive
- Clear items away from the joints we are working on
- Tell us if parking is tricky
- Try not to wet indoor joints just before the visit
How to get a quote
A good description makes for an accurate quote. Tell us where the job is, what’s wrong and how much there is.
Related advice
DIY versus a professional finish
If you’ve already had a go yourself, that’s fine. We remove it and do the joint properly.
A careful DIYer can reseal a simple joint, like a short, easy-to-reach joint indoors. The common mistakes are sealing over old sealant, sealing a damp joint and using far too much.
How we quote for sand mastic
Every job gets its own quote. These are the things that affect it:
- The size of the job
- Whether old sealant or filler has to be cut out
- Mould in or behind the old joints
- Which sealant suits the joint
The cost reflects the work involved, not guesswork. That’s why we ask a few questions first.
Asking for a quote
The more you tell us, the more accurate the quote. When you get in contact, it helps to mention:
- How many joints, rooms or windows are involved
- Photos by email, if that is easy
- Whether it’s a home or a business
- The problem you’ve noticed
Call for a quick quote, or email us if that is easier. Tell us about the joints that need doing and we’ll explain what’s involved and give you a clear quote.