Oxfordshire · England
External Mastic in Weston-on-the-Green
Problem with your movement joints in Weston-on-the-Green? We remove the old material, prepare the joints and seal them properly.
- Hard, crazed mastic that has stopped moving
- Joints with sealant missing in places
- Rain getting behind render or cladding at a joint
About our external mastic in Weston-on-the-Green
Joints in render and cladding are easy to overlook until a damp patch appears. We look over the joints, agree the ones to renew and reseal with a flexible, weatherproof product in a colour to suit. We work on concrete & block, façade panels and render & cladding joints, and people most often call us about cracked joints where brick meets render or frames and joints with sealant missing in places.
In a village or hamlet like Weston-on-the-Green, older cottages and farm buildings often stand in the open, where walls and rooflines take the weather head on. Gutter joints and wall joints there need a sealant that can flex and stay put.
A one-year guarantee comes as standard.
- Location
- Weston-on-the-Green (OX25)
- Region
- Oxfordshire
- Cover
- A year, on every job
- Quotes
- Quoted before any work starts
- Call
- 0345 464 0079
- Last updated
- 26 October 2026
How the visit works
Once we’re on site, we check the joints match what you told us. If anything is different, we explain it before carrying on. Most jobs then take a few hours for a handful of joints, longer for a whole elevation. For a village or hamlet like Weston-on-the-Green, the journey is planned in advance: 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 look at every joint and agree a colour to suit the wall.
- Failed sealant is removed back to clean, sound faces.
- Backing rod goes in so the sealant can stretch between the two faces.
- We prime the faces where required.
- A low-modulus exterior sealant is gunned in and tooled to a neat finish.
How to prepare
- Let us know about parking restrictions
- For business premises, tell us about site rules or sign-in
- Try not to wet indoor joints just before the visit
How to get a quote
We do not publish a price list, as no two jobs are quite the same. Instead, we send you a clear quote for your job. To get started, ring 0345 464 0079 or send us an email.
Related advice
How to look after the new joints
Good habits help new joints last longer. Our tips:
- Keep movement joints as flexible joints, not mortar
- Look over the joints every year, ideally after winter
- Wash walls gently around the sealant
- Ask before painting over external sealant
Give the sealant the cure time we tell you before anything rubs against it. Most exterior sealants skin fast but take longer to cure right through.
Once a joint cannot move, the wall finds another way, often as cracks near the joint. Resealing it early helps prevent that.
Honest limits
We will always be straight with you, so here’s what sealant can’t fix:
- Damp from another source, such as a leaking gutter or a bridged damp-proof course
- Render that’s blown, hollow or coming away
- Cracking across the wall rather than at a joint
If you’re not sure, just phone 0345 464 0079 or drop us an email and we will give you a straight answer before you book.
Where we work in Weston-on-the-Green
- Render & cladding joints
- Façade panels
- Concrete & block
- Brickwork movement joints
- Copings & trims
- Joints between brick and frames
Work for landlords, hotels and businesses
Landlords and letting agents in Weston-on-the-Green can book us as well as householders. Resealing between tenancies keeps a property looking cared for before the next move-in.
We also work for businesses, from offices to washrooms and kitchens. For commercial premises, we can talk through working times when we quote.
DIY sealant or a professional job?
Too much sealant is as bad as too little. A thick, smeared bead looks untidy and doesn’t move well, and the joint depth matters as much as the 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 doesn’t work out, we can still put it right.
Places near Weston-on-the-Green
More services for Weston-on-the-Green
Walls and rooflines in Weston-on-the-Green
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.
Rented homes near Islip station change hands often, and failed wall and movement joints let damp in, so they’re worth checking between tenancies.
Weston-on-the-Green is about 4 miles south-west of Bicester, in Oxfordshire. Whether you’re in the middle of Weston-on-the-Green or further out, external mastic is available for homes and businesses alike. Our area takes in 443 places across Oxfordshire. You can also see our page for Oxford, roughly 8 miles from Weston-on-the-Green.
Every address in OX25 is covered for external mastic, from the main roads to the quietest streets. Streets in the area include Church Road, Blacksmiths Close and Westlands Avenue, and we cover them all. If you’re just outside Weston-on-the-Green, we cover Weston Otmoor (1 mile east), Bletchingdon (2 miles west), Kirtlington (2 miles west), Hampton Poyle (3 miles south-west) and Islip (3 miles south). We also work in nearby towns such as Oxford (8 miles south), Banbury (15 miles north), Bicester (4 miles north-east), Abingdon-on-Thames (13 miles south), Witney (12 miles south-west) and Thame (14 miles south-east).
Local landmarks in Weston-on-the-Green
For rail, the closest station is Islip station, roughly 2.7 miles south of the centre. Nearby you will also find Bicester Community Hospital (3.7 miles north-east) and Bicester Avenue (3.2 miles north-east). Not far away are Woodsides Meadow and Graven Hill.
Common problems we fix in Weston-on-the-Green
The wrong product in a moving joint is a classic cause. A stiff, general-purpose sealant can’t cope with a joint that moves a lot, and it tears off the sides.
Signs it’s time to call us include:
- Rigid filler in a joint that should flex
- Panel joints letting water in
- Weeds or debris growing in open joints
- Failed seals between different materials
In the older streets around Church of St Mary, an extension built onto an older house moves differently, and the joint between them takes the strain.
Questions to ask before you book
- Is VAT in the price?
- Who does the work, and how experienced they are
- Whether they’re fully insured
- What guarantee comes with the work
Different surfaces, different methods
Copings and trims
Coping and trim joints face rain and sun head on. Each is resealed with a weatherproof, flexible sealant.
Brickwork movement joints
Brick walls have vertical movement joints to absorb expansion. They’re resealed over backing rod with a low-modulus sealant in a colour to suit the brick.
Common questions in Weston-on-the-Green
Can you help a landlord with a rental near Islip station?
Yes. We work for letting agents and landlords as well as homeowners. You can phone 0345 464 0079 or drop us an email with the details for a clear quote.
Can you do external mastic in Weston-on-the-Green?
Yes. We work across London and the South East, and Weston-on-the-Green is part of that. Just ring 0345 464 0079 or send us an email with a few details of the job.
What colours does the sealant come in?
The aim is a neat, even joint in a colour that suits the wall. We will talk through colour options before work begins from the range available.
Can a movement joint be filled with mortar?
No. Rigid materials cannot move with the wall and the joint fails. If it has already been filled, we can usually cut it out and reseal it.
Can you quote for more than one area?
Yes, and it often makes sense. Combining jobs makes good use of the visit.
Do you seal joints where cladding meets other materials?
Yes. The old joint is removed, both surfaces cleaned and primed where needed, and a flexible sealant applied. The colour is chosen to suit.
Is there a guarantee?
Yes. Every job comes with a one-year guarantee.
When is the sealant fully cured?
That depends on the sealant used, so please follow the time we give you.