Oxfordshire · England
Sand mastic for sash & case windows in Fewcott, Oxfordshire
Window and door surrounds in Fewcott need attention? We cut out the old, prepare the joints and apply the right sealant.
- Draughty sash windows at the surround
- Weathered mastic on the most exposed windows
- Gaps between timber frames and stone or brick
Signs you need sand mastic in Fewcott
Timber frames move with the seasons. That movement opens up the mastic joint over time.
Common reasons people contact us are:
- Draughts and rain around sash boxes
- Crumbling sand mastic round a window
- Weathered mastic on the most exposed windows
- A silicone bead on a sash window that spoils the look
For an older house near a landmark such as Church of St Mary, replacement windows fitted into old openings often leave uneven gaps that need backing and a flexible joint.
Comparing quotes
- When the joint can take water or movement
- How much experience the applicator has
- How long the guarantee is
- Are they insured?
Sand mastic for homes and businesses in Fewcott
A silicone bead around a sash window can look out of place and is not always the right material. Sand mastic is the traditional choice, and we can replace one with the other. We work on period & listed homes, stone surrounds and brick reveals, and people most often call us about failed mastic on an exposed elevation and modern sealant on a period surround.
Somewhere as small as Fewcott, older homes often have timber frames set in stone or brickwork. Older buildings like these do not always suit modern silicone, and sometimes a traditional sand mastic is the better choice.
Whatever the size of the job, it’s backed by our 12-month guarantee in Fewcott and across Oxfordshire.
- Place
- Fewcott (OX27)
- Wider area
- Oxfordshire
- Guarantee
- 12 months on all our work
- Price
- A clear price before we start
- Call
- 0345 464 0079
- Page updated
- 26 October 2026
What happens if it’s left?
Not every draught comes from the sashes themselves. Open mastic joints round the box can let air in and new mastic seals them. Older cottages and farmhouses around Fewcott can have timber floors and frames, and water through a failed joint can rot timber if it’s left.
Commercial jobs are quoted on the same basis as homes: how much there is to do, how we reach it and what it needs. Ask us for a quote and we will explain what it covers.
Why book with us
- ARBOMaster approved applicator
- We never seal over old sealant
- 20+ years of sealant experience
- One-year guarantee on every job
Take a look at what affects the cost and our reviews.
Should I try it myself first?
Some sealant jobs are within reach of a careful DIYer, like a short, easy-to-reach joint indoors. Where it goes wrong is sealing over the old bead, working on a wet joint or overloading the gap.
If you do try it yourself, take your time over the preparation: remove every trace of old sealant, clean and dry the joint, and follow the product’s cure time. If it fails, we can still redo it.
Fewcott questions
Do you cover smaller places like Fewcott?
Yes, Fewcott is covered. Our work covers London and the South East, from towns to the smallest places. The journey is planned ahead, so it helps to know about access.
Can you help a landlord with a rental near Bicester North station?
Yes. We work for letting agents and landlords as well as householders. You can ring 0345 464 0079 or email us with the details for a clear quote.
Do you hold any approvals?
Yes. We are an ARBOMaster approved applicator.
Which products do you use?
Quality sealants from brands including Arbo and Everbuild, picked for each joint. We explain the product when we quote.
Can you match the sealant colour?
We help you choose a colour that suits. The choice depends on the product the joint needs.
Which is right for my windows, sand mastic or modern sealant?
We’ll talk it through with you. Sand mastic suits many period homes and newer frames suit modern sealant.
Is it messy?
Very little: the area around the joints is protected first, and we tidy up before we go.
Can you work on commercial sites?
Yes. We can plan bigger jobs in stages.
What affects the cost of sand mastic
You will get a clear quote before any work starts. It’s based on:
- How many rooms, windows or areas are involved
- How much old sealant there is and how hard it is to remove
- The type of sealant required
- Mould in or behind the old joints
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. You’ll know the price before we begin.
What to tell us for a quote
Photos help, but a description is a good start. Try to tell us:
- What the problem is, such as mould, gaps, leaks or cracking
- Access, such as stairs, a lift or height
- Where the property is
- A few photos by email, if you can
To get a quote, call 0345 464 0079 or send us an email with the location and a short description of the problem. You’ll have a clear quote before we start.
How the job changes by surface
Tenement and terrace windows
In shared buildings, the windows may be part of a wider repair so it’s worth checking responsibilities.
Period and listed homes
Many older homes were built with sand mastic round the windows. If your home is listed, ask your local planning authority about consent.
Towns and villages near Fewcott
More services for Fewcott
The process
At the end, we look at the finished work together. The work normally takes a few hours per window, depending on the condition of the joints, depending on the size of the job. In a small place like Fewcott, access is usually the main thing to plan. For outside work, also let us know about exposed walls and any outbuildings involved.
- Each surround is checked first.
- We rake out the old mastic and clean the joint.
- We fill deep gaps so the new mastic is not too thick.
- We point the joint with sand mastic by hand.
- The finish is dressed neatly.
Preparing for the visit
- Keep children and pets away from the work area
- Mention any leaks or damp you’ve noticed
- Tell us about access, such as stairs, a lift or high-level joints
Ask for a quote
There’s no standard price list. Instead, your job gets its own clear quote. To arrange one, call 0345 464 0079 or drop us an email.
Related advice
Frames and glazing around Fewcott
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.
Rented homes near Bicester North station change hands often, and older sash windows in a rental need their mastic kept sound to keep the weather out.
Fewcott is about 4 miles north-west of Bicester, in Oxfordshire. If you need sand mastic in Fewcott, please ring 0345 464 0079 or send us an email for a quick quote. We’re based in Crawley and cover Oxfordshire, Fewcott included. Fewcott is one of 443 towns and villages in Oxfordshire we cover. For nearby work, see our Oxford page.
Every address in OX27 is covered for sand mastic. We cover properties on Water Lane, Somerton Road and Ardley Road. Nearby, we also carry out sand mastic in Ardley (1 mile south-east), Fritwell (1 mile north-west), Upper Heyford (2 miles south-west), Souldern (3 miles north-west) and Middleton Stoney (3 miles south). We also work in nearby towns such as Oxford (13 miles south), Banbury (10 miles north-west), Bicester (4 miles south-east), Kidlington (9 miles south), Headington Quarry (13 miles south) and Bure Park (3 miles south-east).
Around Fewcott
Around Fewcott, our work takes us to homes and buildings near White Lion pub and the streets around them. For rail, the closest station is Bicester North station, roughly 4 miles south-east. Well-known places in the area include Bicester Community Hospital (4.2 miles south-east) and Ardley Castle (within half a mile south).
What sealant work can’t fix
We won’t take on work that won’t last, so these are the limits:
- Timber that has rotted
- Crumbling stone or brickwork round the window
- Cracked or broken glass
Not sure which it is? You can phone 0345 464 0079 or email us and we’ll tell you honestly before booking.
Where we work in Fewcott
- Brick reveals
- Tenement windows
- Sash and case windows
- Stone surrounds
- Period & listed homes
- Timber door frames