Oxfordshire · England
Sand mastic for sash & case windows in Shipton-on-Cherwell, Oxfordshire
Sand mastic in Shipton-on-Cherwell from a team with over 20 years’ experience. 180+ five-star Google reviews and a 4.9 rating.
- Draughty sash windows at the surround
- Mastic round period door frames that has failed
- Cement or filler used on old window joints that has cracked
DIY versus a professional finish
The biggest DIY mistake is sealing over old sealant. New silicone won’t bond to old, so it lifts and traps water and mould underneath. All the old material has to come out first.
If you’re set on DIY, put the effort into preparation: take out all the old sealant, make sure the joint is clean and dry, and give it the full cure time. If it fails, we can still redo it.
Sand mastic in Shipton-on-Cherwell
A silicone bead around a sash window can look out of place and does not suit the building. Sand mastic is the traditional choice, and we can replace one with the other. If you have gaps between timber frames and stone or brick and old sand mastic that has cracked, crumbled or fallen out, we can put it right.
Homes in small places like Shipton-on-Cherwell often stand in the open, with little to shelter their windows from wind and rain. Exposed frames and sills lose their mastic sooner than sheltered ones.
Your job is guaranteed for a year, as with all our work.
- Location
- Shipton-on-Cherwell (OX5)
- Wider area
- Oxfordshire
- Guarantee
- One year on every job
- Price
- Quoted before any work starts
- Telephone
- 0345 464 0079
- Last updated
- 26 October 2026
Sand mastic in Shipton-on-Cherwell: local notes
Compared with the north and west, the South East gets less rain, yet outdoor joints still have to be sealed dry, so jobs are booked with the weather in mind. Historic houses like Blenheim Palace (about 2.5 miles west) are a reminder that the area around Shipton-on-Cherwell 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.
For landlords with property near Tackley station, any sash windows need sound mastic to keep draughts and rain out. If you live in an older home near Church of Holy Cross, replacement windows fitted into old openings often leave uneven gaps that need backing and a flexible joint.
Shipton-on-Cherwell is about 7 miles south-west of Bicester, in Oxfordshire. Jobs in Shipton-on-Cherwell get the same care as everywhere else we work: the old material taken out, joints prepared properly and a 12-month guarantee. Shipton-on-Cherwell is one of 443 places in Oxfordshire where we work for sand mastic. We also work in Oxford, around 7 miles away.
Every address in OX5 is within our area for sand mastic. Other places close to Shipton-on-Cherwell include Thrupp (1 mile south), Bunkers Hill (1 mile north-west), Woodstock (2 miles west), Begbroke (2 miles south) and Bladon (2 miles south-west). Within a short drive, we also cover Oxford (7 miles south-east), Banbury (15 miles north), Bicester (7 miles north-east), Abingdon-on-Thames (12 miles south), Witney (9 miles south-west) and Carterton (14 miles south-west).
What’s near Shipton-on-Cherwell
In Shipton-on-Cherwell, that means homes and buildings near The Boat Public House, among other places. The closest station to Shipton-on-Cherwell is Tackley station, roughly 2.3 miles north. Other landmarks nearby include Soldiers of Oxfordshire Museum (2.3 miles west). The countryside around Shipton-on-Cherwell includes Woodsides Meadow.
Shipton-on-Cherwell questions
Do you work for landlords with property near Tackley station?
Yes. We work for landlords and letting agents as well as householders. You can phone 0345 464 0079 or drop us an email with the details for a clear quote.
Is Shipton-on-Cherwell in your area for sand mastic?
Yes. Our work covers London and the South East, and Shipton-on-Cherwell is part of that. You can phone 0345 464 0079 or drop us an email and let us know what needs doing.
What do you need from me for a quote?
Where the job is, what the problem is and roughly how big it is. If you can, email a few pictures.
Are you an approved applicator?
Yes. ARBOMaster is the approved applicator scheme for Arbo sealants, and we’re part of it.
Can you seal over the old sealant?
No, and we never do. It can look neat for a few weeks, but the new layer lifts away from the old one. Removing the old sealant completely is the only lasting way.
What does sand mastic cost?
We do not publish prices, because the cost depends on the job: how much there is, what’s there now, how we reach it and what it needs. You will get a clear quote before we start.
How long does the job take?
As a guide, most jobs take anything from a few hours to a full day, depending on how many windows. Larger jobs naturally take longer, and we’ll say how long yours will take.
Can you quote for more than one area?
Yes. Tell us about everything you’d like done.
How we quote for sand mastic
The quote reflects the job in front of us. We take into account:
- How many rooms, windows or areas are involved
- Any mould that needs treating
- Any working-time requirements on site
- The product the joint needs
Commercial jobs are quoted on the same basis as homes: how much there is to do, how we reach it and what it needs. Call for a quick quote and we will go through it with you.
What to tell us for a quote
Photos by email are helpful but not essential. Try to tell us:
- Access, such as stairs, a lift or height
- Whether it has been sealed before
- Where the property is
- How many joints, rooms or windows are involved
Asking for a quote is easy: let us know the job and the location, and roughly how big it is. Photos by email help us understand the job.
When it isn’t the sealant
A few problems are outside what sealant work can do:
- Sash cords, weights and draught-proofing of the sashes
- Broken panes
- Masonry that needs repairing
If you are not sure, just phone 0345 464 0079 or email us and we will give you a straight answer.
Joints and surfaces we work on
- Stone surrounds
- Timber door frames
- Tenement windows
- Sash and case windows
- Period & listed homes
- Brick reveals
Signs you need sand mastic in Shipton-on-Cherwell
Timber swells and shrinks with the weather. The movement cracks the mastic over time.
People normally contact us after spotting something like this:
- Gaps round a timber door in stone or brick
- Failed mastic on an exposed elevation
- Cement or filler used on old window joints that has cracked
- Open joints round the window box
For site and facilities teams at buildings such as The Marlborough Church of England School, its window and door frames need their mastic kept sound, just like a home’s.
What to look for in a quote
- Who turns up on the day
- Is VAT in the price?
- What preparation is included
- When the joint can take water or movement
Different surfaces, different methods
Brick reveals
Sand mastic is also used where timber frames meet brick. It suits older brickwork.
Tenement and terrace windows
Upper-floor windows need access planning. Let us know the floor and we’ll confirm access.
Keeping the joints in good condition
Once the sealant has cured, a few habits help it last:
- Plan mastic work ahead of painting
- Go gently near the mastic when preparing windows
- Inspect the joints round the windows every year or so
- Keep sills and gutters clear so water drains away
Check the mastic when you check the paintwork. Small cracks are easier to deal with early.
It’s best to renew mastic before painting the windows. Painting over failed mastic hides the problem for a while.
What else we do in Shipton-on-Cherwell
What we do, step by step
A visit follows a simple pattern: we look at the joints together, protect the area around them, carry out the job and clear up. It generally takes anything from a few hours to a full day, depending on how many windows. In a small place like Shipton-on-Cherwell, access is generally the main thing to plan. If the job is outside, mention outbuildings, exposed walls and how to reach them.
- First, we look at the surrounds with you and agree what needs doing.
- The loose and crumbling mastic is raked out and the joint cleaned.
- Large voids are packed out first, so the mastic is not too thick.
- The mastic is mixed, pressed into the joint by hand and shaped.
- The finish is dressed so it sits neatly against the stone or brick.
Before we arrive
- Plan for the work area to be out of bounds to pets and children
- Tell us about any water getting in
- Tell us about any previous sealing or DIY attempts
Ask for a quote
Need a quote? Please phone 0345 464 0079 or send us an email and tell us about the job. You’ll know what we plan to do, and what it will cost, before any work begins.