Oxfordshire · England
Sand mastic for sash & case windows in Cutteslowe, Oxfordshire
Professional sand mastic in and around Cutteslowe, with every bit of old sealant taken out first and a 12-month guarantee.
- Crumbling sand mastic round a window
- Gaps round a timber door in stone or brick
- Window mastic to renew ahead of painting
Why act early in Cutteslowe
Not every draught comes from the sashes themselves. Open mastic joints round the box can let air in, and renewing the mastic closes them. Homes in smaller places like Cutteslowe can face more weather, and failed outside joints let damp into walls. Indoors, a failed seal lets water into floors and panels as it would anywhere.
We do not show prices on the website, because each job is priced on what it involves. Call for a quick quote and we’ll talk you through it.
What you get with us
- We are fully insured
- More than 20 years in sealant work
- An ARBOMaster approved applicator
- Tidy, careful work
Take a look at what affects the cost and what customers say.
About our sand mastic in Cutteslowe
Fresh sand mastic forms a skin quite soon but full hardening takes longer. Traditional guidance is not to paint over it, so ask us before you decorate. If you are dealing with failed mastic on an exposed elevation and gaps between timber frames and stone or brick, we can put it right, whatever the surface.
Many houses in smaller places like Cutteslowe have conservatories, garden rooms or patio doors. Those joints need the same attention as the main windows.
Every job is covered by a 12-month guarantee.
- Location
- Cutteslowe (OX2)
- Region
- Oxfordshire
- Cover
- A year, on every job
- Quote
- Quoted before any work starts
- Telephone
- 0345 464 0079
- Page updated
- 26 October 2026
Places near Cutteslowe
Other services in Cutteslowe
Aftercare tips
Looking after new joints is easy:
- Inspect the joints round the windows every year or so
- Renew mastic before redecorating the windows
- Ask the planning authority about consent for listed or conservation-area homes
- Leave the new mastic unpainted
When preparing windows for paint, take care around the mastic. Hard scraping can loosen it.
Once mastic starts to crumble, rain gets in. It can soak into the frame and the surrounding masonry so early renewal protects both.
Signs you need sand mastic in Cutteslowe
Most of it is simply age. Even well-laid mastic needs renewing in time, depending on exposure and upkeep.
Most people get in touch after spotting something like this:
- Open joints round the window box
- Old sand mastic that has cracked, crumbled or fallen out
- Tired mastic found when preparing windows for paint
- Silicone on a period window that looks wrong
In the older streets around Roman Catholic Church of St Gregory and St Augustine, the joint between an old wall and a newer frame is normally the first place rain gets in.
What your quote should include
- What the quote includes, VAT included or not
- Whether all the old sealant comes out first
- Which colour the sealant will be
- How the surfaces are prepared before sealing
What affects the cost of sand mastic
Jobs vary more than people expect. What affects the quote:
- How much there is to do
- The type of sealant required
- Whether there’s mould to deal with
- Whether old sealant or filler has to be cut out
What it costs depends on the amount of work, how hard the old material is to remove and access to the work. We give a clear quote before work begins, so you know where you stand.
Helping us quote
There’s no need for technical detail. Just tell us:
- Pictures of the joints, sent by email
- If someone has resealed it before
- What the problem is, such as mould, gaps, leaks or cracking
- How we’d reach the joints
We do not publish a price list, because every job is different. Instead, your job gets its own clear quote. To arrange one, call 0345 464 0079 or drop us an email.
How the job changes by surface
Sash and case windows
Most of our sand mastic work is on sash windows. We renew the mastic round each box.
Brick reveals
Brick reveals round timber windows are often pointed with sand mastic. It gives a traditional finish.
Sand mastic in Cutteslowe: local notes
Compared with the north and west, the South East gets less rain, but outside sealant still needs a dry, clean surface, so outdoor work is planned around the forecast. Historic houses like Holywell Manor (about 2.5 miles south) are a reminder that the area around Cutteslowe 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.
Rented homes near Oxford Parkway station change hands often, and older sash windows in a rental need their mastic kept sound to keep the weather out. For site and facilities teams at buildings such as Cutteslowe Primary School, larger buildings have plenty of frames, and the mastic around each one ages.
Cutteslowe is about 3 miles north-west of Oxford, in Oxfordshire. Across the OX2 area, we cover sand mastic for homes and businesses. Our Oxfordshire coverage runs to 443 places, Cutteslowe among them.
All of OX2 is within our area for sand mastic, from the main roads to the quietest streets. Sand mastic is available to properties on Wren Road, Scott Road and Wyatt Road and the roads around them. You’ll find Cutteslowe on the A4165, so it’s easy for us to get to with everything needed for sand mastic. Other places close to Cutteslowe include Sunnymead (1 mile south), Summertown (1 mile south), North Oxford (1 mile south), Wolvercote (1 mile west) and Godstow (2 miles south-west). Further out, we also cover Oxford (3 miles south-east), Didcot (12 miles south), Bicester (9 miles north-east), Abingdon-on-Thames (8 miles south), Witney (10 miles west) and Carterton (14 miles west).
Near you in Cutteslowe
Around Cutteslowe, our work takes us to homes and buildings near Oxford University Parks, St Hugh's College Main Building Including Library and The Plough pub, among other places. Nearby too are Oxford Academy (1.1 miles south) and Summer Fields School (0.8 miles south). The nearest railway station is Oxford Parkway station, about 1 mile north. Well-known places in the area include Acland Hospital (2 miles south) and Oxford University Museum of Natural History (2.2 miles south). Green spaces nearby include Headington Hill and Hook Meadow and The Trap Grounds.
How the visit works
On the day, we start by going over the job with you. We protect the surfaces around the joints before we start. Most jobs take a few hours for a single window, longer for several. For a job in Cutteslowe, we agree the time, the access and parking before the day. If the work is outside, the weather plays a part, as sealant needs a dry surface.
- We check each window surround and the condition of the joint.
- 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.
How to prepare
- For indoor joints, keep the area dry beforehand if you can
- Move anything stored near the joints
- Mention any sign-in or site rules at work premises
Ask for a quote
For a quick quote, get us on the phone, or email us if that is easier. Describe what needs sealing and we’ll talk you through the work and give you a clear price.
Related advice
Common questions in Cutteslowe
Is Cutteslowe in your area for sand mastic?
Yes, Cutteslowe is within the area we cover. Our work covers London and the South East. Just phone 0345 464 0079 or email us with a few details of the job.
Can you help a landlord with a rental near Oxford Parkway station?
Yes, we work for landlords and letting agents. Just ring 0345 464 0079 or send us an email and tell us about the property, and we will give you a clear price.
Can I paint the new mastic?
It’s traditionally left unpainted, as guidance on traditional windows advises. Talk to us before any painting near it.
What is sand mastic?
It’s a mix of sand and a linseed-oil-based binder. It’s built up in the joint by hand and shaped to suit the surround.
Do I need permission for sand mastic on a listed building?
Speak to your local planning authority before work starts. Like-for-like sand mastic is often the preferred finish, but they decide.
Do you offer different sealant colours?
In most cases you can choose. We will tell you which colours the right product comes in and agree one before any work starts.
How long does the job take?
Typically it takes anything from a few hours to a full day, depending on how many windows. Bigger jobs take longer, and we’ll tell you how long to expect.
What does sand mastic cost?
We don’t 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 any work starts.
DIY versus a professional finish
If you’ve already had a go yourself, that’s fine. We remove it and do the joint properly, so tell us about it when you ask for a quote.
The biggest DIY mistake is sealing over old sealant. New silicone won’t bond to old, so it peels away and traps moisture behind it. Everything old must be removed first.