Oxfordshire · England
Window & door mastic in Lower Brailes, Oxfordshire
Window mastic in Lower Brailes from a team with over 20 years’ experience. Rated 4.9 on Google from 180+ five-star reviews.
- Water coming in at the bottom corners of a door
- Cold air getting in at the frame edge
- A bead that does not match the frame
Can I do it myself?
If you are set on DIY, put the effort into preparation: remove every trace of old sealant, clean and dry the joint, and follow the product’s cure time. If it doesn’t work out, we can still put it right.
The biggest DIY mistake is sealing over old sealant. Silicone doesn’t stick to old silicone, so it peels away and traps moisture behind it. All the old material has to come out first.
How we handle window mastic in Lower Brailes
Mr Mastic’s applicators have more than 20 years’ experience with window and door sealants. We are ARBOMaster approved and fully insured, and we give a one-year guarantee on the work. If you have hard, cracked sealant around windows and untidy mastic left by window fitters, we can put it right.
Homes in small places like Lower Brailes 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.
The work is covered for a year after we finish. If anything isn’t right with it, phone 0345 464 0079 or drop us an email.
- Location
- Lower Brailes (OX15)
- Wider area
- Oxfordshire
- Guarantee
- 12 months on all our work
- Price
- A clear price before we start
- Call
- 0345 464 0079
- Updated
- 26 October 2026
Common problems we fix in Lower Brailes
Joint shape matters as much as the product. A thin smear across a wide gap has nothing to it, while a joint packed solid cannot stretch. Backing rod sets the right depth.
Common reasons people contact us are:
- Gaps left after new windows were fitted
- Gaps where the sill meets the wall
- Water coming in at the bottom corners of a door
- Cracked internal joints between frame and plaster
Schools such as Brailes CofE Primary School are buildings too, and its window and door frames need their mastic kept sound, just like a home’s.
Before booking anyone
- What the quote includes, VAT included or not
- Which sealant they’ll use, and why
- What happens if the job turns out different
- How much experience the applicator has
Frames and glazing around Lower Brailes
London and the South East are among the drier parts of the UK, but outside sealant still needs a dry, clean surface, so outdoor work is planned around the forecast.
Homes close to Church of St George include some older properties, and frames set in older brick or stone need a sealant that suits the wall as well as the frame.
Lower Brailes is about 8 miles west of Banbury, in Oxfordshire. Jobs in Lower Brailes get the same care as everywhere else we work: the old material taken out, joints prepared properly and a 12-month guarantee. Lower Brailes is one of 443 places in Oxfordshire we cover. You can also see our page for Oxford, about 25 miles away.
Work in OX15 is quoted and booked the same way as anywhere else. If you need window mastic at a property on High Street, School Lane and Orchard Close or anywhere close by, we can help. Neighbouring places we cover for window mastic include Upper Brailes (1 mile north-west) and Sutton-under-Brailes (1 mile south-west). Within a short drive, we also cover Banbury (8 miles east), Chipping Norton (8 miles south), Neithrop (8 miles east), Grimsbury (10 miles east), Ruscote (8 miles east) and Bloxham (8 miles east).
Near you in Lower Brailes
Locally, jobs take us to homes and businesses close to George Hotel And Attached Carriage Entrance And Barn and the streets around them. A little further out are Ellen Badger Hospital (3.5 miles west). The countryside around Lower Brailes includes Castle Hill and Woodford Bottom and Lamb's Pool.
Work for landlords, hotels and businesses
For anyone letting property in or around Lower Brailes, jobs at different addresses can go on one quote. Send us the addresses and the work at each.
Letting agents often deal with us directly. Tell us the address, the job and how access works and we’ll give you a quote.
How to look after the new joints
Joint life depends on how it’s used and looked after. Here’s what we suggest:
- Keep timber frames painted
- Don’t paint over the silicone
- Avoid harsh chemicals near the mastic
- Avoid blasting the frames with a pressure washer
Try not to touch the new joint while it cures, for as long as we advise. Do not point a pressure washer at the joints.
On timber windows, water behind the joint can lead to rot. Once wood has rotted, it needs repair before it can be sealed, so early resealing is worth it.
Questions from Lower Brailes
What guarantee comes with window mastic in Lower Brailes?
All our work, in Lower Brailes and everywhere else, comes with a 12-month guarantee. We are fully insured, and an ARBOMaster approved applicator.
Do you cover Lower Brailes for window mastic?
Yes. We work across London and the South East, and Lower Brailes is part of that. You can ring 0345 464 0079 or email us and tell us what needs doing.
What information do you need?
A short description and the location. We will ask anything else we need to know.
Can I paint over the new sealant?
That depends on the product. Some hybrid sealants can be painted; silicone can’t. Tell us if you are decorating and we will choose accordingly.
Will there be a smell?
There can be a smell while the sealant cures, which fades as it sets. Ventilation helps.
Can resealing stop a draught around my window?
If the draught is coming in around the frame, yes. If it’s through the window’s own seals or a hinge, that’s a different fix, and we’ll say so.
What do you put in the joint?
Quality sealants from brands including Arbo and Everbuild, chosen to suit the joint. We’ll tell you what we are using and why.
Are you insured?
Yes. We’re fully insured for domestic and commercial work.
How the visit works
When we get to you, 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 a few hours for a few frames, or a day or more for a whole house. In a small place like Lower Brailes, access is normally the main thing to plan. If the job is outside, mention outbuildings, exposed walls and how to reach them.
- First, we confirm safe access to each frame.
- Old, cracked mastic is removed completely.
- The surfaces are cleaned and left dry, and primed where the sealant calls for it.
- Deep voids are backed, then the sealant is gunned in.
- We tool the joint so water runs off, then clear up.
Getting ready for the visit
- Let us know about stairs, lifts or work at height
- Let us know if you’ve seen damp or leaks
- Let us know about earlier repairs to the joints
Get a quote
Quotes start with a quick conversation. Describe the problem, the location and the size of the job. When it suits you, phone 0345 464 0079 or email us.
Read more
Nearby places to Lower Brailes
More services for Lower Brailes
Different surfaces, different methods
Composite doors
If the door itself is draughty, the issue may be the door seals or hinges rather than the frame mastic. We will tell you if that is what we find.
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.
When something else is needed
Honest advice matters more to us than a booking, so here’s what sealant cannot fix:
- Condensation trapped between the panes
- Rotten timber, which needs a joiner first
- Faulty window hardware
Not sure which it is? You can call 0345 464 0079 or drop us an email and we will tell you honestly before you book.
Where we work in Lower Brailes
- Aluminium frames
- Patio & French doors
- Window sills
- uPVC windows
- Composite doors
- Timber windows & doors