Oxfordshire · England
Sand mastic for sash & case windows in Sibford Gower, Oxfordshire
Window and door surrounds in Sibford Gower need attention? We remove the old material, prepare the joints and seal them properly.
- Weathered mastic on the most exposed windows
- Tired mastic found when preparing windows for paint
- Draughts and rain around sash boxes
How we quote for sand mastic
You’ll get a clear quote before work begins. It takes into account:
- The product the joint needs
- Whether old sealant or filler has to be cut out
- The size of the job
- Mould in or behind the old joints
The cost depends on the amount of work, how much old material has to come out and access to the work. We give a clear quote before we start, so you know where you stand.
Asking for a quote
A few details help us give you an accurate quote. When you get in contact, it helps to mention:
- Photos by email, if that’s easy
- If it’s domestic, commercial or a hotel
- The rough size of the job
- Any previous sealing or DIY work
We do not publish a price list, because every job is different. Instead, we give you a clear price for your job. To get started, phone 0345 464 0079 or send us an email.
Sand mastic for homes and businesses in Sibford Gower
Fresh sand mastic forms a skin quite soon, but it takes longer to harden fully. Traditionally, sand mastic is left unpainted, so ask us before you decorate. We work on brick reveals, tenement windows and timber door frames, and the jobs we see most are window mastic to renew ahead of painting and mastic worn away on windows facing the weather.
Somewhere as small as Sibford Gower, older homes often have timber frames set in stone or brickwork. Not every older frame suits a modern silicone bead, and sometimes a traditional sand mastic is the better choice.
Whatever the size of the job, it’s backed by our one-year guarantee.
- Where
- Sibford Gower (OX15)
- Wider area
- Oxfordshire
- Cover
- A year, on every job
- Price
- Quoted before any work starts
- Telephone
- 0345 464 0079
- Page updated
- 26 October 2026
Sibford Gower questions
Do you cover Sibford Gower for sand mastic?
Yes. Our work covers London and the South East, and Sibford Gower is part of that. Just call 0345 464 0079 or drop us an email with a few details of the job, and we’ll send you a clear quote.
Is there a guarantee on sand mastic in Sibford Gower?
All our work, in Sibford Gower and everywhere else, comes with a 12-month guarantee. We are also fully insured and ARBOMaster approved.
Can I do it myself?
You can, for simple jobs. The key is preparation: remove all the old material and work on a clean, dry joint. If it doesn’t work out, we can redo it.
Do you have insurance?
Yes. We’re fully insured for every job we do.
Is it OK to seal over 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.
Can I choose the sealant colour?
Normally, yes. Sealants come in white, clear, grey and other colours for many products, and we’ll agree it with you first.
What sealant do you use?
Quality sealants from brands including Arbo and Everbuild, picked for each joint. We explain the product when we quote.
I’m a tenant. Can you help?
Yes, but check with your landlord or agent first. Many landlords are glad to have it sorted.
Keeping the joints in good condition
After the cure time, these simple habits help:
- Have rotten timber repaired before new mastic goes in
- Renew mastic before redecorating the windows
- Keep sills and gutters clear so water drains away
- Find out about consent before window work on a listed home
Avoid painting over the new mastic, as traditional guidance advises. Ask us before any decorating around it.
Good mastic helps keep the frame dry. Failed mastic lets water reach the timber and timber that stays wet can rot.
Landlord and commercial work in Sibford Gower
Water getting past a failed joint can damage the building, which matters even more when someone else lives there. Resealing at the right time is simple maintenance.
We also work for property managers and facilities teams in Sibford Gower and across Oxfordshire. Several sites can go on one quote.
Frames and glazing around Sibford Gower
Historic houses like Broughton Castle (about 4 miles east) are a reminder that the area around Sibford Gower has older buildings as well as new. In older buildings, older frames set in brick or stone need a sealant that suits them, and sometimes that’s traditional sand mastic. London and the South East are among the drier parts of the UK, though outdoor sealant still has to go onto a dry joint, so the forecast decides the day.
If you live in an older home near Church of Holy Trinity, the joint between an old wall and a newer frame is usually the first place rain gets in. Schools such as Sibford Gower Endowed Primary School are buildings too, and the mastic around its windows and doors needs looking after like any other building’s.
Sibford Gower is about 6 miles west of Banbury, in Oxfordshire. Homes, rented property, offices and hotels in Sibford Gower can book us for sand mastic. Every job comes with our one-year guarantee. Across Oxfordshire, we cover 443 places, Sibford Gower among them. We also work in Oxford, around 23 miles away.
We cover every part of the OX15 postcode area for sand mastic. We cover properties on Main Street, Colony Road and Pound Lane. Close by, we work in Burdrop (1 mile east), Sibford Ferris (1 mile south-east), Swalcliffe (2 miles east), Epwell (2 miles north) and Shutford (3 miles north-east). Further out, we also cover Banbury (6 miles east), Chipping Norton (7 miles south), Neithrop (5 miles east), Grimsbury (7 miles east), Ruscote (5 miles east) and Woodstock (14 miles south-east).
What’s near Sibford Gower
In Sibford Gower, that means homes and buildings near Sibford School and the streets around them. Other landmarks nearby include Broughton Castle (4 miles east). The countryside around Sibford Gower includes Castle Hill and Woodford Bottom and Lamb's Pool.
How it works
At the end, we look at the finished work together. The visit itself usually takes anything from a few hours to a full day, depending on how many windows, depending on the size of the job. In a small place like Sibford Gower, access is usually 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.
- We remove the old, loose mastic.
- We pack any deep voids first.
- We apply the mastic by hand and shape it.
- The surface is finished to suit the stone or brick.
Before we arrive
- Clear items away from the joints we’re working on
- Keep children and pets away from the work area
- Mention any tricky access
Ask for a quote
Asking for a quote is easy: let us know what needs doing and where, and roughly how big it is. A few photos by email make the job easier to understand.
Related advice
What happens if it’s left?
New sash windows are a major, costly change, and in listed buildings it may need consent. If the frames are sound, renewing the mastic deals with gaps and draughts at the surround. Where a wall is exposed, as many are in small places like Sibford Gower, wind-driven rain gets into any failed joint, and older walls, once damp, take a long time to dry.
No two jobs are quite the same, so each one gets its own quote. Size, access and the product the joint needs all play a part.
Why Sibford Gower clients choose us
- Domestic, commercial and hotel work
- 180+ five-star Google reviews
- Tidy, careful work
- Anti-fungal sanitary silicone in wet areas
Places near Sibford Gower
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What we cannot put right
Honest advice matters more to us than a booking, so here’s what sealant cannot fix:
- Timber that has rotted
- Damaged stone surrounds
- Whether work needs listed building consent
If you are not sure, just ring 0345 464 0079 or drop us an email and we’ll give you a straight answer.
Joints and surfaces we work on
- Stone surrounds
- Brick reveals
- Tenement windows
- Timber door frames
- Period & listed homes
- Sash and case windows
DIY versus a professional finish
A DIY attempt doesn’t rule out a professional job. We remove it and do the joint properly.
The biggest DIY mistake is sealing over old sealant. Silicone does not stick to old silicone, so it peels away and traps moisture behind it. All the old material has to come out first.