Oxfordshire · England
Sand mastic for sash & case windows in Shillingford, Oxfordshire
Sand mastic for Shillingford, by sealant specialists with 20+ years’ experience. 180+ five-star Google reviews and a 4.9 rating.
- Gaps round a timber door in stone or brick
- Gaps between timber frames and stone or brick
- Patchy fillers round a sash window
Sand mastic in Shillingford, done properly
Sand mastic has long been used to fill the joint between timber frames and masonry. It’s a mix of sand and a linseed-oil-based binder and built up by hand. On older homes, it suits the building far better than silicone. We work on timber door frames, period & listed homes and stone surrounds, and people most often call us about cement or filler used on old window joints that has cracked and mastic worn away on windows facing the weather.
Mastic can only go onto a dry, clean joint, so window work in Shillingford is booked around the forecast. Tell us about access to every side of the house, including upper-floor windows.
There’s a 12-month guarantee on every job, large or small.
- Place
- Shillingford (OX10)
- Wider area
- Oxfordshire
- Guarantee
- One year on every job
- Quote
- A clear price before work begins
- Call
- 0345 464 0079
- Page updated
- 26 October 2026
Why act early in Shillingford
Silicone might seem the quicker option, but on period stone or brick it often looks out of place. Sand mastic suits the building and finishes neatly against the masonry. In a small place like Shillingford, homes can be exposed to wind and rain, which finds any gap, and older walls, once damp, take a long time to dry.
Instead of a standard rate, we look at what your job involves: how many joints, what’s in them now and how we reach them. The price is agreed before we begin.
What you get with us
- One-year guarantee on every job
- Homes, businesses and hotels
- Quality sealants from Arbo and Everbuild
- We are fully insured
Take a look at what affects the cost or what customers say.
When it is not the sealant
We’ll always be straight with you, so here’s what new sealant won’t do:
- Sash cords, weights and draught-proofing of the sashes
- Cracked or broken glass
- Whether work needs listed building consent
If in doubt, ring 0345 464 0079 or drop us an email and we’ll say what we think.
Joints and surfaces we work on
- Stone surrounds
- Tenement windows
- Timber door frames
- Sash and case windows
- Period & listed homes
- Brick reveals
DIY sealant or a professional job?
A DIY attempt doesn’t rule out a professional job. We cut it out and start again, so tell us about it when you ask for a quote.
Overfilling a joint is a classic DIY mistake. A thick, smeared bead looks untidy and does not move well, and getting the depth right matters as much as the look.
Places near Shillingford
Also in Shillingford
Your questions about sand mastic in Shillingford
Do you cover Shillingford for sand mastic?
Yes, Shillingford is within the area we cover. We work across London and the South East. Just ring 0345 464 0079 or send us an email with a few details of the job.
I let a flat near Cholsey station. Can you help?
Yes. We work for landlords and agents as well as householders. You can call 0345 464 0079 or email us with the details for a clear quote.
Can you do several jobs on one visit?
Yes, we can. More than one area can be quoted together.
Where are you based?
We work from Crawley. Our applicators cover Shillingford, along with the rest of our area.
Is the work guaranteed?
You get our one-year guarantee on every job.
How much does sand mastic cost in Shillingford?
The cost depends on the size of the job, access and how much old sealant has to come out. Ask us for a quote.
What do you need from me for a quote?
A short description and the location. We’ll ask anything else we need to know.
Do I need permission for sand mastic on a listed building?
It’s best to ask your local planning authority first. Sand mastic is often favoured as like for like, but they decide.
What happens on the day
Before we leave, we go over the finished joints with you and tell you how long to leave it. The work normally takes anything from a few hours to a full day, depending on how many windows, depending on how much there is to do. Somewhere like Shillingford needs a little journey planning: tell us about narrow lanes, gates, long drives and where we can park. We bring what the job needs, so it can be finished in one trip where possible.
- First, we look at the surrounds with you and agree what needs doing.
- Old, loose mastic is raked out and the joint cleaned.
- Large voids are packed out first, so the mastic isn’t too thick.
- We mix the sand mastic and apply it by hand, shaping it to the joint.
- We dress the surface so it sits neatly against the masonry.
Before we arrive
- Move anything stored near the joints
- Where the joints are inside, avoid wetting them before we arrive
- Tell us about any previous sealing or DIY attempts
Ask for a quote
Want a quote for sand mastic? Please ring 0345 464 0079 or send us an email with a few details. We will explain what we’d do and give you a clear price before work begins.
Advice
Aftercare tips
A little care helps the new joints last. Our advice:
- Look over the window mastic once a year
- Go gently near the mastic when preparing windows
- Ask us before painting near the mastic
- Check with your local planning authority if your home is listed
Leave the new mastic unpainted, as traditional guidance advises. Ask us before any decorating around it.
Gaps round a sash box let in draughts and rain. Left, the gap tends to get bigger as more mastic falls out.
What the job involves on each surface
Sash and case windows
The box of a sash and case window sits in the stone or brick opening. Sand mastic seals the joint round it.
Brick reveals
Brick reveals round timber windows are often pointed with sand mastic. It gives a traditional finish.
Landlords, agents and businesses in Shillingford
In hotels, rooms out of use cost money, so we plan the work room by room around your bookings where we can. We’ve worked in hotels as well as homes and businesses.
Failed sealant is one of the commonest items on a check-out report, and it’s quick to put right between tenancies. Several properties can be quoted together.
Shillingford homes and the weather
London and the South East are among the drier parts of the UK, yet outdoor joints still have to be sealed dry, so jobs are booked with the weather in mind. With historic houses such as Brightwell Manor (about 1.8 miles south-west) nearby, there’s older building stock in the area around Shillingford as well as newer homes. In older buildings, older timber frames in brick or stone need a different approach from a modern uPVC window.
Rented homes near Cholsey station change hands often, and any sash windows need sound mastic to keep draughts and rain out. In the older streets around Church of St Lawrence, replacement windows fitted into old openings often leave uneven gaps that need backing and a flexible joint. Schools such as St Laurence Church of England (A) School are buildings too, and the mastic around its windows and doors needs looking after like any other building’s.
Shillingford is about 5 miles east of Didcot, in Oxfordshire. Shillingford gets the same service as everywhere we cover: old sealant removed completely, careful preparation and a 12-month guarantee. We cover 443 towns and villages across Oxfordshire. You can also see our page for Oxford, about 9 miles away.
Here we cover the OX10 postcode area for sand mastic. Local streets include Warborough Road, New Road and Hartley Close, all of which we cover. If you’re just outside Shillingford, we cover Warborough (1 mile north), Dorchester (1 mile north-west), Brightwell-cum-Sotwell (1 mile south-west), Benson (2 miles south-east) and Berrick Salome (2 miles north-east). Within a short drive, we also cover Oxford (9 miles north-west), Didcot (5 miles west), Abingdon-on-Thames (7 miles north-west), Thame (11 miles north-east), Wantage (13 miles west) and Henley-on-Thames (12 miles south-east).
Near you in Shillingford
Typical jobs here are in homes near The Six Bells Inn and Wallingford School, among other places. The nearest railway station is Cholsey station, roughly 4.3 miles south. Other landmarks nearby include Aston Martin Heritage Trust Museum (1.9 miles north) and Brightwell Castle (1.7 miles south-west). The countryside around Shillingford includes Ewelme Watercress Beds and Wittenham Clumps.