Oxfordshire · England
Window & door mastic in Great Tew, Oxfordshire
Mastic around window and door frames, sills and patio doors for Great Tew, backed by a one-year guarantee. Ask us for a quote.
- Gaps left after new windows were fitted
- Black, perished sealant on frames
- Cold air getting in at the frame edge
About our window mastic in Great Tew
Colour matters on a frame. We can seal in white, brown, anthracite grey, black or clear, so the bead blends with the window rather than framing it. If you are dealing with white mastic on grey or black frames and gaps where the sill meets the wall, we can help, whatever the surface.
Homes in small places like Great Tew often stand in the open, with little to shelter their windows from wind and rain. That exposure dries out and cracks the mastic around frames and sills faster.
A one-year guarantee comes as standard, so you are covered after we have gone.
- Location
- Great Tew (OX7)
- Region
- Oxfordshire
- Guarantee
- One year on every job
- Price
- Quoted before any work starts
- Telephone
- 0345 464 0079
- Last updated
- 26 October 2026
What affects the cost of window mastic
We don’t publish a price list, because jobs vary so much. The quote depends on:
- Whether there’s mould to deal with
- Working hours on commercial sites
- The number of rooms or windows
- Whether old sealant or filler has to be cut out
There are no prices on our website, because each job is priced on what it involves. For a quick quote, please call 0345 464 0079 or email us.
Asking for a quote
There’s no need for technical detail. Just tell us:
- Where the property is
- If it’s domestic, commercial or a hotel
- Photos by email, if that is easy
- What’s wrong with the joints now
The more we know about the job, the more useful the quote. Tell us where the job is, what’s wrong and how much there is.
When something else is needed
Some problems need a builder, plumber or other trade rather than us:
- Misting between the panes of a double-glazed unit (that needs a new unit)
- Worn gaskets, brush seals or a door that has dropped
- A sash or casement that won’t close properly
Not sure which it is? You can call 0345 464 0079 or email us and we’ll tell you honestly.
Joints and surfaces we work on
- Patio & French doors
- uPVC windows
- Window sills
- Composite doors
- Aluminium frames
- Timber windows & doors
Landlords, agents and businesses in Great Tew
If you manage several properties in or around Great Tew, jobs at different addresses can be quoted together. Send us the addresses and the work at each.
Letting agents and landlords in Great Tew can book us as well as householders. Sealant work between tenants is a simple way to keep a property in good order before the next move-in.
What window mastic looks like in Great Tew
The South East is one of the drier parts of the UK, but outside sealant still needs a dry, clean surface, so outdoor work is planned around the forecast.
If you look after a building such as Great Tew County Primary School, the mastic around its windows and doors needs looking after like any other building’s.
Great Tew is about 8 miles south-west of Banbury, in Oxfordshire. Jobs in Great Tew get the same care as everywhere else we work: the old material taken out, joints prepared properly and a 12-month guarantee. Great Tew is one of 443 towns and villages in Oxfordshire where we work for window mastic. For nearby work, see our Oxford page, about 17 miles away.
All of OX7 is covered for window mastic. Local streets include The Square, Old Road and New Road, all of which we cover. If you are just outside Great Tew, we cover Little Tew (1 mile south-west), Swerford (2 miles north-west), Wigginton (2 miles north), South Newington (3 miles north) and Church Enstone (3 miles south). Larger places within reach include Banbury (8 miles north-east), Bicester (12 miles east), Witney (12 miles south), Carterton (15 miles south-west), Kidlington (11 miles south-east) and Bure Park (12 miles east).
Landmarks near Great Tew
We work in homes and buildings around The Falkland Arms Public House and the streets around them. Nearby you will also find Old Forge Museum (Great Tew) (under half a mile north) and Deddington Castle (4.9 miles east). Not far away are Woodford Bottom and Lamb's Pool.
Can I do it myself?
Overfilling a joint is a classic DIY mistake. A thick, smeared bead looks untidy and doesn’t move well, and the joint depth matters as much as the finish.
Sealing over old silicone is the commonest DIY error. New silicone won’t bond to old, so it lifts and traps water and mould underneath. Everything old must be removed first.
Aftercare tips
Good habits help new joints last longer. Our tips:
- Clear any debris from frame drain holes
- Ventilate rooms so frames do not stay wet inside
- Keep jet washers away from the mastic
- Keep paint and stain on wooden frames in good order
Wipe the frames with soapy water when you clean the windows, and avoid solvent cleaners on the sealant.
On timber windows, water behind the joint can lead to rot. Rotten timber needs a joiner, not a sealant, so it pays to reseal before that happens.
The process
On the day, there’s very little for you to do. Show us the job and we will take it from there. The work itself takes most of a day for a typical house, less for a few frames from start to finish. Somewhere like Great Tew 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 start by checking each window and door with you.
- We remove the old mastic and clean the frame and the wall.
- Deep gaps are filled with backing rod to set the depth.
- A flexible, weatherproof sealant is applied in a colour to suit the frame.
- Finally we tidy up and check each joint.
Getting ready for the visit
- Clear items away from the joints we are working on
- Tell us about any previous sealing or DIY attempts
- Let us know about stairs, lifts or work at height
Get a quote
Need a quote? Please phone 0345 464 0079 or send us an email and tell us about the job. You’ll know what we plan to do, and what it will cost, before any work begins.
Advice
Also near Great Tew
More services for Great Tew
When to call us in Great Tew
Joint shape matters as much as the product. A skim of sealant over a wide gap soon tears, and a gap filled solid cannot flex. That’s what backing rod is for.
It’s worth asking for a quote if you see:
- Whistling draughts around closed windows
- Gaps left after new windows were fitted
- White mastic on grey or black frames
- Cracked or shrunken mastic around the frame
If you live in an older home near Church of St Michael and All Angels, the windows may be timber, sash or later replacements, and each needs the right sealant against the wall.
What your quote should include
- Which sealant they’ll use, and why
- How the colour is chosen
- How long the guarantee is
- What happens if the job turns out different
Great Tew: your questions answered
Do you cover Great Tew for window mastic?
Yes, Great Tew is within the area we cover. We work across London and the South East. You can ring 0345 464 0079 or drop us an email and tell us what needs doing, and we’ll send you a clear quote.
Is Great Tew within the area you cover?
Yes, Great Tew 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.
Where are you based?
Our base is Crawley, with over 20 years’ experience. Our area covers South East England, London and Scotland.
Will resealing my frames help with draughts?
Yes, where the draught is at the frame edge. We check where the draught is before any work starts.
Can you do the inside joint as well?
Yes. Outside is the weather seal; inside closes the gap to the plaster. We do one or both.
Do you have insurance?
Yes, we’re fully insured for every job we do.
What information do you need?
The location, the problem and the rough size of the job. If you can, email a few pictures.
Will there be a smell?
Possibly a little. Any smell clears as the sealant cures, and ventilation helps.