Oxfordshire · England
Nuneham Courtenay Window Mastic
Window and door frames in Nuneham Courtenay need attention? We remove the old material, prepare the joints and seal them properly, with a 12-month guarantee.
- Hard, cracked sealant around windows
- Untidy mastic left by window fitters
- Draughty joints inside around the window
What window mastic looks like in Nuneham Courtenay
With historic houses such as Clifton Hampden Manor (about 2.3 miles south) nearby, there’s older building stock in the area around Nuneham Courtenay as well as newer homes. In older buildings, older frames set in brick or stone need a sealant that suits them, and sometimes that’s traditional sand mastic. Compared with the north and west, the South East gets less rain, though outdoor sealant still has to go onto a dry joint, so the forecast decides the day.
In the older streets around Church of St Peter, the windows may be timber, sash or later replacements, and each needs the right sealant against the wall. For landlords with property near Radley station, sound mastic around windows and doors keeps out the draughts and damp that tenants notice first.
Nuneham Courtenay is about 4 miles east of Abingdon-on-Thames, in Oxfordshire. Wherever you are in the OX44 postcode area, our applicators can take on window mastic. Across Oxfordshire, we cover 443 places, Nuneham Courtenay among them.
All of OX44 is within our area for window mastic, from the main roads to the quietest streets. We also cover Radley (2 miles west), Clifton Hampden (2 miles south), Long Wittenham (3 miles south), Abingdon-on-Thames (4 miles west) and Culham (4 miles south-west). Further out, we also cover Oxford (4 miles north), Didcot (6 miles south), Bicester (15 miles north), Witney (14 miles north-west), Thame (11 miles east) and Wantage (12 miles south-west).
Landmarks near Nuneham Courtenay
Around Nuneham Courtenay, our work takes us to homes and buildings near The Oxford Academy. For rail, the closest station is Radley station, about 1.7 miles west of the centre. Other landmarks nearby include FitzHarris Castle (3.7 miles west) and Littlemore Hospital (2.3 miles north-west). Not far away are Shotover and Wells Farm.
Window mastic for homes and businesses in Nuneham Courtenay
A cold draught around a closed window often comes from the frame edge. Resealing that joint can make a room feel noticeably less draughty and quietens the whistle on windy days. If the draught is through the window seals instead, we will tell you. Common call-outs are for cold air getting in at the frame edge and gaps where the sill meets the wall, across patio & French doors, composite doors and uPVC windows.
Around Nuneham Courtenay, 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.
The work is guaranteed for twelve months. If something isn’t right with it in that time, tell us and we will put it right.

- Where
- Nuneham Courtenay (OX44)
- Region
- Oxfordshire
- Cover
- 12 months on all our work
- Quote
- Quoted before any work starts
- Telephone
- 0345 464 0079
- Last updated
- 26 October 2026
What we do, step by step
We bring everything the job needs with us. Once we have agreed what’s being done, we protect the area and start. Most jobs take a morning for a couple of windows and a door. Somewhere like Nuneham Courtenay needs a little journey planning: let us know about lanes, gates and parking. We bring what the job needs, so it can be finished in one trip where possible.
- We check each frame and agree which ones need doing.
- The old mastic is cut out and the surfaces cleaned back.
- We fit backing rod in deep gaps so the sealant is the right 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
- Mention any sign-in or site rules at work premises
- Mention any parking rules near the property
- Let us know about stairs, lifts or work at height
How to get a quote
Quotes start with a quick conversation. Tell us what’s wrong, where it is and how much there is, and we’ll talk you through what we’d do. When it suits you, ring 0345 464 0079 or send us an email.
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Quotes for window mastic in Nuneham Courtenay
We quote each job individually. This is what makes a difference:
- The number of rooms or windows
- When we can work, for business premises
- Any mould that needs treating
- Which sealant suits the joint
Homes and businesses are quoted the same way: the amount of work, the access and the products needed, along with when we can work on site. Call for a quick quote and we’ll go through it with you.
What we need to know
A few details help us give you an accurate quote. When you ask for a quote, tell us:
- How we’d reach the joints
- Roughly how big the job is
- A few pictures by email, if you can
- The problem you’ve noticed
Need a quote? Please phone 0345 464 0079 or email us and tell us about the job. You’ll know what we plan to do, and what it will cost, before any work begins.
Work for landlords, hotels and businesses
Whether it’s one flat or a portfolio, you get the same standard of work: old sealant fully removed, joints prepared properly and a 12-month guarantee.
Landlords and agents in Nuneham Courtenay can book us as well as householders. Resealing between tenancies is a simple way to keep a property in good order.
Why deal with it now?
A quick bead over the top of old mastic looks like an easy fix, but new sealant can’t bond to old, crumbling mastic. It soon lifts and the leak carries on behind it. Proper resealing starts with removing the old joint. Around Nuneham Courtenay, older homes often have timber in their floors and frames, and water through a failed joint can rot timber if it’s left.
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.
Why Nuneham Courtenay customers choose us
- Sealant colour chosen to suit
- Approved under the ARBOMaster scheme
- We leave the area clean and tidy
- Quality sealants from Arbo and Everbuild
Read how sealant jobs are priced or our reviews.
DIY versus a professional finish
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.
Some sealant jobs are within reach of a careful DIYer, such as a straightforward joint indoors. The common mistakes are sealing over old sealant, sealing a damp joint and using far too much.
Common problems we fix in Nuneham Courtenay
Mastic ages in the weather. Sunlight dries the surface out, and over the years it loses its give, cracks and comes away.
Signs it’s time to call us include:
- Untidy mastic left by window fitters
- Cracked internal joints between frame and plaster
- Sealant in the wrong colour for the frame
- Cracked or shrunken mastic around the frame
Schools such as Marsh Baldon Church of England Controlled School are buildings too, and the mastic around its windows and doors needs looking after like any other building’s.
What to look for in a quote
- Whether they’re fully insured
- How long the guarantee is
- Which colour the sealant will be
- Whether VAT is included
Places near Nuneham Courtenay
What else we do in Nuneham Courtenay
Nuneham Courtenay questions
Will you come out to Nuneham Courtenay?
Yes, Nuneham Courtenay 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.
Can you do window mastic in Nuneham Courtenay?
Yes. We work across London and the South East, and Nuneham Courtenay is part of that. Just ring 0345 464 0079 or send us an email with a few details of the job.
Can you seal the gap between the frame and the plaster indoors?
Yes. Draughts often come through the inside gap too, so sealing both is often worthwhile.
Is the work guaranteed?
Yes. All our work carries a 12-month guarantee, and we’re fully insured.
How long before the joint can be used?
Cure times vary by product. Before we leave, we’ll tell you the cure time.
Do I need to be at home?
It depends on the job. Inside work needs someone to give us access.
Can you quote for more than one area?
Yes. Just list everything you need.
How do I get a quote for window mastic in Nuneham Courtenay?
Every job is different, so each one gets its own quote. To get one, call 0345 464 0079 or drop us an email and tell us what needs doing and where.
Looking after it afterwards
Simple care keeps the joints in good condition. Our advice:
- Wipe condensation off the frames
- Don’t aim a pressure washer at the joints
- Keep paint and stain on wooden frames in good order
- Avoid harsh chemicals near the mastic
On timber frames, keep the paintwork in good order, because bare, wet timber moves more and pulls at the joint. Keep paint off the silicone itself.
A small gap around a frame only grows. As the old mastic shrinks further, more air gets through, and a cold room gets colder. A new joint closes it up.
