Oxfordshire · England
Window & door mastic in Foscot, Oxfordshire
We cover Foscot for mastic around window and door frames, sills and patio doors. Old sealant removed completely, joints prepared properly and every job guaranteed for a year.
- Mastic that’s falling out in pieces
- Damp patches on the reveal after heavy rain
- Whistling draughts around closed windows
How to look after the new joints
Joint life depends on how it’s used and looked after. Here’s what we suggest:
- Ventilate rooms so frames don’t stay wet inside
- Don’t use solvent cleaners on the joint
- Look round the frames every year or so
- Make sure the drainage slots aren’t blocked
Keep sill grooves and drainage slots clear, so water can run away instead of sitting against the joint.
A failed joint lets water into the wall a little at a time. You might not see it until plaster blows or a damp patch appears inside. Catching it early keeps the fix to a reseal.
Window mastic in Foscot, done properly
Some gaps around frames are far deeper than they look. Packing it solid with sealant gives a joint that can’t flex, so deep gaps get backing rod first. That way the new bead bonds to the frame and the wall only. If you are dealing with old mastic that has gone black or come away and a bead that doesn’t match the frame, we can help, whatever the surface.
Around Foscot, many homes face open ground, so their windows and doors take the full weather. That exposure dries out and cracks the mastic around frames and sills faster.
Whatever the size of the job, it’s backed by our one-year guarantee in Foscot and across Oxfordshire.
- Where
- Foscot (OX7)
- Region
- Oxfordshire
- Cover
- A year, on every job
- Quote
- A clear price before work begins
- Call
- 0345 464 0079
- Updated
- 26 October 2026
More services for Foscot
DIY sealant or a professional job?
Overfilling a joint is a classic DIY mistake. A heavy bead looks messy and copes badly with movement, and the joint depth matters as much as the finish.
If you’ve already had a go yourself, that is fine. We remove it and do the joint properly.
For landlords and businesses
Businesses can book us for washrooms, kitchens, offices and more. On commercial sites, working times can be discussed when we quote.
We also work for property managers and facilities teams. We can quote a run of properties together, and we’re fully insured for the work.
What affects the quote in Foscot
The quote reflects the job in front of us. We look at:
- Access and height
- Whether old sealant or filler has to be cut out
- The size of the job
- Which sealant suits the joint
Rather than a set price list, we look at what your job involves: the amount of work, the old material and the access. You’ll know the price before we begin.
Asking for a quote
Before you ask for a quote, have a think about:
- The type of property
- What’s wrong with the joints now
- Where the property is
- A few photos by email, if you can
There’s no standard price list, as no two jobs are quite the same. Instead, we give you a clear price for your job. To arrange one, phone 0345 464 0079 or send us an email.
Signs you need window mastic in Foscot
Every frame moves through the day. Sun on a frame makes it expand, and it contracts again overnight, while the masonry beside it stays put. A sealant that can’t keep up eventually tears.
The problems people normally mention when they call are:
- Cracked internal joints between frame and plaster
- Rain getting in at the frame or under the sill
- Cracked or shrunken mastic around the frame
- Old mastic that has gone black or come away
Schools such as Bledington Primary School are buildings too, and larger buildings have plenty of frames, and the mastic around each one ages.
What your quote should include
- Whether they’re fully insured
- Whether you can choose the colour
- Whether they seal over old material or remove it
- What the cure time is
What happens on the day
Once we’re on site, we compare the joints with what we discussed. If we find something unexpected, we talk it through with you first. After that, the work takes anything from an hour or two to a full day, depending on how many frames there are. Somewhere like Foscot 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.
- We check how each frame can be reached safely.
- All the failed sealant is cut away, along with any loose debris.
- The surfaces are cleaned and left dry, and primed where the sealant calls for it.
- Backing rod fills deep voids and the sealant goes in on top.
- The joint is shaped to shed water and the area tidied.
Getting ready for the visit
- Mention any parking rules near the property
- Mention any tricky access
- Clear the area around the work
Ask for a quote
Call for a quick quote, or send an email if you’d rather. Describe what needs sealing and we’ll talk you through the work.
Advice
Window mastic in Foscot: local notes
With historic houses such as Chastleton House (about 4.4 miles north) nearby, there’s older building stock in the area around Foscot as well as newer homes. In older buildings, older timber frames in brick or stone need a different approach from a modern uPVC window. Rainfall in the South East is lower than in much of the UK, though outdoor sealant still has to go onto a dry joint, so the forecast decides the day.
If you let a flat or house near Kingham station, sound mastic around windows and doors keeps out the draughts and damp that tenants notice first. Homes close to Church of St Leonard include some older properties, and replacement windows fitted into old openings often leave uneven gaps that need backing and a flexible joint.
Foscot is about 9 miles north of Carterton, in Oxfordshire. Across the OX7 area, our applicators can take on window mastic. We cover 443 towns and villages across Oxfordshire. We also work in Oxford, around 20 miles away.
All of OX7 is covered for window mastic. Streets in the area include Station Road and Old Burford Road, all of which we cover. If you’re just outside Foscot, we cover Idbury (2 miles south-west), Fifield (2 miles south), Milton-under-Wychwood (3 miles south), Fulbrook (6 miles south) and Little Barrington (6 miles south-west). We also work in nearby towns such as Witney (10 miles south-east), Carterton (9 miles south), Chipping Norton (5 miles north-east), Woodstock (13 miles east), Cogges (10 miles south-east) and Bloxham (14 miles north-east).
Around Foscot
The closest station to Foscot is Kingham station, roughly 0.6 miles north-east. Nearby you will also find Moore Cottage Hospital (5 miles west).
FAQs for Foscot
Will you come out to Foscot?
Yes, Foscot is covered. We work across London and the South East, and smaller places are part of that. The journey is planned ahead, so it helps to know about access.
Do you work for landlords with property near Kingham station?
Yes, rental work is part of what we do. Just phone 0345 464 0079 or email us and tell us about the property, and we will give you a clear price.
Do you do commercial work?
Yes. Commercial and hotel work is a large part of what we do, as well as homes. Working times can be discussed when we quote.
Can you do the inside joint as well?
Yes. Plenty of draughts come through the inside joint as well as the outside, so it can be worth sealing both.
Do you work on first-floor windows?
Yes, where it’s safe. Higher or awkward frames may need extra access, and we will confirm what’s needed.
How long will my window job take?
Allow anything from an hour or two to a full day, depending on how many frames there are. Access and the amount of old mastic make the biggest difference.
Do you guarantee window mastic?
Yes, with our 12-month guarantee. A yearly look at the joints helps them last.
Where do you work from?
We’re a Crawley-based firm, with over 20 years’ experience. Our area covers South East England, London and Scotland.
How the job changes by surface
Timber windows & doors
Timber moves with moisture as well as heat, so the joint must stay flexible. The paint or stain needs to be sound where the sealant meets it.
Composite doors
An exposed front door gets wind-driven rain. Those corners get the most care.