Oxfordshire · England
Window Mastic in Burcot
Problem with your window and door frames in Burcot? We remove the old material, prepare the joints and seal them properly, and the work is guaranteed for a year.
- Water coming in at the bottom corners of a door
- Rushed sealant from a window installation
- Cold air getting in at the frame edge
Work for landlords, hotels and businesses
We also work for businesses, from offices to washrooms and kitchens. On commercial sites, working times can be discussed when we quote.
Failed sealant is one of the commonest items on a check-out report, and it’s easy to sort out between tenants. We can quote for more than one property at once.
Window mastic for homes and businesses in Burcot
From a single sill to a whole house of windows, you will get a clear quote before any work starts. To get one, ring 0345 464 0079 or drop us an email with the number of frames and any access details. Typical jobs include cracked internal joints between frame and plaster and damp patches on the reveal after heavy rain, across timber windows & doors, patio & French doors and window sills.
In a village or hamlet like Burcot, older cottages and farmhouses often have timber windows set in stone or brick. Older buildings like these don’t always suit modern silicone, and sometimes a traditional sand mastic is the better choice.
The work is guaranteed for twelve months. If there’s a problem with our work within the year, let us know and we will sort it.

- Place
- Burcot (OX14)
- Wider area
- Oxfordshire
- Guarantee
- 12 months on all our work
- Quotes
- Quoted before any work starts
- Phone
- 0345 464 0079
- Page updated
- 26 October 2026
Do you need window mastic in Burcot?
Sun, frost and rain wear sealant out. UV light hardens the outside of the bead, and over the years it loses its give, cracks and comes away.
People generally contact us when they notice one of these:
- Sealant in the wrong colour for the frame
- Draughty joints inside around the window
- Gaps where the sill meets the wall
- Cracked or shrunken mastic around the frame
Managing a site like Abbey Woods Academy? Then larger buildings have plenty of frames, and the mastic around each one ages.
Questions to ask before booking
- Who turns up on the day
- Is VAT in the price?
- Whether they seal over old material or remove it
- How long to leave it before use
DIY versus a professional finish
A careful DIYer can reseal a simple joint, such as a straightforward joint indoors. The common mistakes are sealing over old sealant, sealing a damp joint and using far too much.
Not every job suits DIY: high-level joints, fire-rated gaps, external movement joints and big jobs call for the right materials, safe access and experience.
How to look after the new joints
Aftercare is simple, and it makes a real difference:
- Avoid harsh chemicals near the mastic
- Paint up to the joint, not over it
- Keep timber frames painted
- Make sure the drainage slots are not blocked
A yearly look round the frames is enough. Cracks and lifting edges are easy to spot early.
A small gap around a frame only grows. As the old mastic shrinks further, more air gets through, and heat escapes around the frame. Resealing closes it.
Burcot: your questions answered
I let a flat near Culham station. Can you help?
Yes, landlords and agents are among the people we work for, and several properties can go on one quote. Just call 0345 464 0079 or send us an email with the address and what needs doing, and we’ll send you a clear quote.
Is Burcot in your area for window mastic?
Yes, Burcot is within the area we cover. Our work covers London and the South East. Just call 0345 464 0079 or email us with a few details of the job, and we’ll send you a clear quote.
Is the new sealant paintable?
Most silicone cannot be painted. If you plan to paint, tell us first and we can use a paintable sealant where it suits the joint.
Do the sealants smell?
There can be a smell while the sealant cures, which fades as it sets. Ventilation helps.
Can you reach windows above the ground floor?
Yes, as long as they can be reached safely. Let us know about access when you ask for a quote so we can plan the job.
Will the old sealant be removed?
Yes. All of the old material is cut out and the joint cleaned.
What does window mastic cost?
Size, access and the old material all affect the cost. Ask us for a quote and we’ll talk you through it.
Is it OK to seal over old sealant?
No. Fresh sealant does not stick to old sealant, and anything trapped underneath, including mould and water, stays there. It all has to come out first.
Different surfaces, different methods
Patio & French doors
Water at the foot of a door frame is not always the mastic: worn seals, blocked drainage slots or a poor threshold detail can be the cause. We look for the cause first.
Timber windows & doors
Soft or rotten wood can’t be sealed successfully. We will point out any rot we find, as a joiner will need to deal with it.
What else we do in Burcot
Why act early in Burcot
Running fresh sealant over the old joint is tempting, but new sealant can’t bond to old, crumbling mastic. It peels before long, and water still gets in behind. Proper resealing starts with removing the old joint. Where a wall is exposed, as many are in small places like Burcot, wind-driven rain gets into any failed joint, and damp in older walls is slow to dry out.
Combining jobs into one visit is usually more efficient than separate visits. We will send you a clear quote for the lot.
Why choose Mr Mastic in Burcot
- Every job guaranteed for a year
- White, clear, grey or another colour, product permitting
- Arbo and Everbuild products
- Rated 4.9 stars on Google
What we do, step by step
We work through the job in order: protect, prepare, seal, tidy. Typically it takes a few hours for a few frames, or a day or more for a whole house. For a village or hamlet like Burcot, the journey is planned in advance: 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.
- First, we go round the frames with you and agree the list.
- The old mastic is cut out and scraped back to clean surfaces.
- Where the gap is deep, backing rod goes in first.
- The new sealant goes on in white, brown, anthracite grey, black or clear to suit.
- Every joint is tooled smooth and checked before we leave.
Before we arrive
- Clear the area around the work
- For business premises, tell us about site rules or sign-in
- Plan for the work area to be out of bounds to pets and children
How to get a quote
We don’t publish a price list, because every job is different. Instead, your job gets its own clear quote. To arrange one, phone 0345 464 0079 or drop us an email.
Read more
Window mastic in Burcot: local notes
Historic houses like Clifton Hampden Manor (about 1.2 miles west) are a reminder that the area around Burcot has older buildings as well as new. 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, yet outdoor joints still have to be sealed dry, so jobs are booked with the weather in mind.
Homes close to Saint Mary and Saint Berin include some older properties, and the windows may be timber, sash or later replacements, and each needs the right sealant against the wall. If you let a flat or house near Culham station, sound mastic around windows and doors keeps out the draughts and damp that tenants notice first.
Burcot is about 4 miles north-east of Didcot, in Oxfordshire. Across the OX14 area, our applicators can take on window mastic. We cover 443 towns and villages across Oxfordshire. There’s also a page for Oxford, about 7 miles away.
Work in OX14 is quoted and booked the same way as anywhere else. That includes homes and businesses on Linnet Close and Abingdon Road and the roads around them. We also cover Berinsfield (1 mile north-east), Dorchester (1 mile south-east), Little Wittenham (2 miles south), Drayton St Leonard (2 miles east) and Marsh Baldon (2 miles north). Larger places within reach include Oxford (7 miles north), Didcot (4 miles south-west), Abingdon-on-Thames (4 miles west), Thame (11 miles north-east), Wantage (11 miles south-west) and Henley-on-Thames (15 miles south-east).
Around Burcot
Around Burcot, our work takes us to homes and buildings near The Chequers at Burcot pub and Nuneham Courtenay, among other places. The nearest railway station is Culham station, roughly 2.4 miles west of the centre. Well-known places in the area include Aston Martin Heritage Trust Museum (1.9 miles east) and Brightwell Castle (3.3 miles south). Open spaces near Burcot include Wittenham Clumps and Wells Farm.
