Oxfordshire · England
Duns Tew Sand Mastic
Window and door surrounds in Duns Tew need attention? We remove the old material, prepare the joints and seal them properly.
- Open joints round the window box
- Old sand mastic that has cracked, crumbled or fallen out
- Modern sealant on a period surround
Landlord and commercial work in Duns Tew
Letting agents and landlords in Duns Tew can book us as well as householders. Resealing between tenancies is a simple way to keep a property in good order before the next move-in.
We also work for businesses, from offices to washrooms and kitchens. On commercial sites, working times can be discussed when we quote.
Sand mastic for homes and businesses in Duns Tew
Sand mastic skins over fairly quickly but full hardening takes longer. Traditional guidance is not to paint over it and we will advise if you are redecorating. If you’re dealing with mastic round period door frames that has failed and crumbling sand mastic round a window, we can help.
Homes in small places like Duns Tew often stand in the open, with little to shelter their windows from wind and rain. That exposure dries out and cracks the mastic around frames and sills faster.
Our work is backed for twelve months.
- Location
- Duns Tew (OX25)
- Wider area
- Oxfordshire
- Guarantee
- One year on every job
- Quotes
- A clear price before we start
- Telephone
- 0345 464 0079
- Page updated
- 26 October 2026
What affects the quote in Duns Tew
Your quote is based on your job. We look at:
- Whether old sealant or filler has to be cut out
- The number of rooms or windows
- Access and height
- The size of the job
The cost depends on the size of the job, how hard the old material is to remove and access to the work. You’ll have a clear quote before any work starts, so you know where you stand.
Asking for a quote
Photos by email are helpful but not essential. Try to tell us:
- Any access issues, like height or stairs
- Where the property is
- Any previous sealing or DIY work
- A few pictures by email, if you can
Getting a quote is simple: let us know the job and the location, and roughly how big it is. Photos by email help us understand the job, and we will come back to you with a quote.
When something else is needed
A few problems are outside what sealant work can do:
- Crumbling stone or brickwork round the window
- Timber that has rotted
- Putty and glazing repairs
If you’re not sure, just ring 0345 464 0079 or drop us an email and we’ll give you a straight answer before booking.
Surfaces we seal
- Brick reveals
- Period & listed homes
- Sash and case windows
- Stone surrounds
- Timber door frames
- Tenement windows
Do you need sand mastic in Duns Tew?
Most of it is simply age. Sand mastic is a maintenance item like any pointing, depending on exposure and upkeep.
Any of these means the joints need attention:
- A silicone bead on a sash window that spoils the look
- Weathered mastic on the most exposed windows
- Gaps round a timber door in stone or brick
- Wind and rain getting in round a sash window
If you let a flat or house near Heyford station, older sash windows in a rental need their mastic kept sound to keep the weather out.
Questions to ask before booking
- How the surfaces are prepared before sealing
- How much experience the applicator has
- Is VAT in the price?
- How the colour is chosen
Nearby places to Duns Tew
What else we do in Duns Tew
What the job involves on each surface
Tenement and terrace windows
Windows above ground floor need the right access. Tell us the height and we will confirm what’s needed.
Timber door frames
Round a period front door, sand mastic gives the right look.
Can I do it myself?
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.
Sealing over old silicone is the commonest DIY error. New silicone won’t bond to old, so it peels away and traps moisture behind it. Everything old must be removed first.
Duns Tew: your questions answered
Can you help a landlord with a rental near Heyford station?
Yes, we work for letting agents and landlords. You can phone 0345 464 0079 or send us an email with the address and a few details, and we will give you a fixed price before work begins.
Is Duns Tew in your area for sand mastic?
Yes, Duns Tew is within the area we cover. Our work covers London and the South East. Just call 0345 464 0079 or email us with a few details of the job, and we will send you a clear quote.
Do you hold any approvals?
Yes. We’re approved under the ARBOMaster scheme, the approved applicator scheme for Arbo sealants.
What should I tell you?
Tell us what needs doing and where, plus photos if you have them. We’ll ask anything else we need to know.
Do the sealants smell?
That depends on the sealant. Some products have a noticeable smell, others very little.
Will the old sealant be removed?
Yes, every time. New silicone doesn’t stick to old silicone, so the joint is cleaned back first.
Is consent needed for window work on a listed home?
It’s best to ask your local planning authority first. Sand mastic is often favoured as like for like, but they decide.
What exactly is sand mastic?
A traditional pointing material made from sand and a linseed-oil-based binder, used between timber frames and stone or brick.
What happens on the day
Most of a good job is in the preparation, and we don’t rush it. Every joint is cleaned and dried before new material goes in. In total, it generally takes a few hours for a single window, longer for several. In a small place like Duns Tew, access is generally the main thing to plan. If the job is outside, mention outbuildings, exposed walls and how to reach them.
- We look at the surrounds with you and agree the joints to renew.
- Old mastic and any loose material are raked out.
- Deep gaps are packed so the mastic sits at the right depth.
- We apply the mastic by hand and shape it.
- We dress the finish so it sits neatly against the masonry.
How to prepare
- On commercial sites, let us know about site rules
- Let us know about stairs, lifts or work at height
- Where the joints are inside, avoid wetting them before we arrive
How to get a quote
It all starts with a short chat. Describe the problem, the location and the size of the job. When it suits you, call 0345 464 0079 or send us an email.
Related advice
What sand mastic looks like in Duns Tew
Rainfall in the South East is lower than in much of the UK, but outside sealant still needs a dry, clean surface, so outdoor work is planned around the forecast.
For an older house near a landmark such as Church of St Mary Magdalene, the joint between an old wall and a newer frame is normally the first place rain gets in.
Duns Tew is about 8 miles south of Banbury, in Oxfordshire. From the centre of Duns Tew to the outskirts, sand mastic is available for homes and businesses alike. Our Oxfordshire coverage runs to 443 places, Duns Tew among them. We also work in Oxford, around 15 miles away.
Postcode districts we cover here for sand mastic: OX25. Whether your property is on Main Street, Glebe Court and Middle Barton Road or anywhere close by, our applicators can take on the job. We also cover the places around Duns Tew: Dane Hill (1 mile north-east), North Aston (1 mile east), Middle Aston (1 mile south-east), Steeple Aston (2 miles south-east) and Nether Worton (2 miles west). We also work in nearby towns such as Oxford (15 miles south), Banbury (8 miles north), Bicester (8 miles south-east), Witney (13 miles south-west), Kidlington (9 miles south) and Headington Quarry (14 miles south-east).
Around Duns Tew
Locally, jobs take us to homes and businesses close to The White Horse Inn and the streets around them. For rail, the closest station is Heyford station, roughly 2.8 miles south-east. Nearby you will also find Old Forge Museum (Great Tew) (3.9 miles west) and Deddington Castle (2.1 miles north-east).