Hampshire · England
Window & door mastic in Thruxton, Hampshire
Window mastic across Thruxton and nearby, with every bit of old sealant taken out first.
- Rushed sealant from a window installation
- Gaps where the sill meets the wall
- White mastic on grey or black frames
About our window mastic in Thruxton
The mastic around a window or door seals the gap between the frame and the wall. When it cracks, hardens or pulls away, draughts and rain get in. The old mastic is removed and the joint resealed with a flexible exterior sealant. If you have leaking joints at the ends of sills and gaps between the frame and the inside reveal, we can help, whatever the surface.
In a village or hamlet like Thruxton, older cottages and farmhouses often have timber windows set in stone or brick. Older buildings like these don’t always suit modern silicone, so the sealant has to be chosen to suit the building.
You are covered for a year from the day we finish. If there’s a problem with it, please call 0345 464 0079 or drop us an email.
- Location
- Thruxton (SP11)
- Wider area
- Hampshire
- Guarantee
- 12 months on all our work
- Quote
- A clear price before we start
- Phone
- 0345 464 0079
- Updated
- 26 October 2026
What happens on the day
Our applicators work methodically: protection first, then preparation, sealing and a tidy-up. For most jobs that takes a few hours for a handful of frames, longer for a whole house and we leave things clean and tidy. Somewhere like Thruxton needs a little journey planning: let us know about lanes, gates and parking. Everything for the job comes with us, so a second trip is avoided where possible.
- We check how each frame can be reached safely.
- All the failed sealant is cut away, along with any loose debris.
- The surfaces are cleaned and left dry.
- Deep voids are backed, then the sealant is gunned in.
- The joint is shaped to shed water and the area tidied.
Getting ready for the visit
- Mention if the joints have been sealed before
- Tell us about any water getting in
- Plan for the work area to be out of bounds to pets and children
How to get a quote
It all starts with a short chat. Describe the problem, the location and the size of the job, and we will talk you through what we’d do. Whenever you’re ready, phone 0345 464 0079 or email us.
Related advice
Different surfaces, different methods
Composite doors
An exposed front door gets wind-driven rain. We pay most attention there.
Window sills
Masonry sills can have joints where water gets in, including the one between the sill and the frame above. We seal those with a sealant suited to masonry.
Window mastic in Thruxton: local notes
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.
For an older house near a landmark such as Church of St Peter and St Paul, replacement windows fitted into old openings often leave uneven gaps that need backing and a flexible joint. If you look after a building such as Amport Church of England Primary School, the mastic around its windows and doors needs looking after like any other building’s.
Thruxton is about 4 miles west of Andover, in Hampshire. For window mastic in and around Thruxton, please call 0345 464 0079 or send us an email for a quick quote. We’re based in Crawley and cover Hampshire. We cover 683 towns and villages across Hampshire, from the larger towns to small villages. For nearby work, see our Southampton page (22 miles or so).
Work in SP11 is quoted and booked the same way as anywhere else. That includes homes and businesses on Lambourne Way, Lambourne Close and Stanbury Close and the roads around them. Nearby, we also carry out window mastic in Mullenspond (1 mile east), East Cholderton (1 mile south-east), Fyfield (1 mile north), Weyhill (1 mile north-east) and Appleshaw (2 miles north-east). Within a short drive, we also cover Andover (4 miles east), Hyde (15 miles south-east), Tidworth (4 miles north-west), Weeke (14 miles south-east), Stanmore (15 miles south-east) and Ludgershall (3 miles north-west).
What’s near Thruxton
Locally, jobs take us to homes and businesses close to The George Inn, among other places. The nearest railway station is Grateley station, roughly 3.2 miles south-west of the centre. A little further out are Andover War Memorial Hospital (3.9 miles east) and Ludgershall Castle (3.8 miles north-west). For a walk, there’s Anton Lakes and Quarley Hill.
Can I do it myself?
If you’re set on DIY, put the effort into preparation: take out all the old sealant, make sure the joint is clean and dry, and give it the full cure time. If it fails, we can still redo it.
The difference is mostly in the preparation and the product. We take joints back to clean, dry surfaces, and the sealant is chosen for how the joint moves and where it is, then guaranteed for a year.
Places near Thruxton
Also in Thruxton
What happens if it’s left?
Redecorating is a good moment to renew the mastic. A clean new bead makes new paint or render look finished. Older cottages and farmhouses around Thruxton can have timber floors and frames, where water from a failed joint can cause rot if it’s left.
Combining jobs into one visit is usually more efficient than separate visits. You will get one clear quote for the whole job.
Why us?
- Arbo and Everbuild products
- Experience in homes, commercial sites and hotels
- Colour picked to suit the job
- You choose the colour before work begins
Signs you need window mastic in Thruxton
Water runs down the glass onto the sill, so the sill ends and the joint below the frame are common leak points. Failed sealant there lets rain into the wall or behind the frame.
These are the problems we’re asked about most:
- Draughts coming in around windows and doors
- A bead that does not match the frame
- Draughty joints inside around the window
- Mastic that is falling out in pieces
Rented homes near Grateley station change hands often, and cracked frame mastic tends to show up as a draught or damp complaint, so it’s worth checking between lets.
Questions to ask before you book
- How long to leave it before use
- Whether you can choose the colour
- The length of the guarantee
- Who does the work, and how experienced they are
Landlords, agents and businesses in Thruxton
Businesses can book us for washrooms, kitchens, offices and more. On commercial sites, working times can be discussed when we quote.
Landlords and agents in Thruxton can book us as well as homeowners. Resealing between tenancies is a simple way to keep a property in good order before the next move-in.
Common questions in Thruxton
I let a flat near Grateley station. Can you help?
Yes. We work for landlords and letting agents as well as homeowners. Just ring 0345 464 0079 or drop us an email with the address and what needs doing, and we will send you a clear quote.
Will you come out to Thruxton?
Yes, we do. We work across London and the South East, and smaller places are part of that. Longer journeys are simply planned in advance.
How many windows can you do in a day?
A few frames take a few hours, while a whole house takes longer. We confirm the timing with your quote.
Where is Mr Mastic based?
We are based in Crawley, West Sussex, and we work across South East England, London and Scotland.
How much does window mastic cost in Thruxton?
There’s no set price, as it depends on the job: its size, the old material, access and the product needed. You will get a clear quote before any work starts.
Is it OK to seal over old sealant?
No, because it fails. We remove every bit of old sealant first, so the new sealant bonds properly.
Do you hold any approvals?
Yes. We’re an ARBOMaster approved applicator.
Do I have to be there?
For indoor joints, yes, someone needs to let us in. After that, you can carry on with your day.
Aftercare tips
A little care helps the new joints last. Our advice:
- Keep timber frames painted
- Look round the frames every year or so
- Keep solvents and bleach off the sealant
- Keep paint off silicone joints
Wipe the frames with soapy water when you clean the windows, and avoid solvent cleaners on the sealant.
Water trapped behind a failed joint can start rot in timber frames and sills. Rotten timber needs a joiner, not a sealant, so it pays to reseal before that happens.