Oxfordshire · England
Tadmarton External Mastic
Movement joints in Tadmarton need attention? We remove the old material, prepare the joints and seal them properly, and the work is guaranteed for a year.
- Movement joints filled with mortar instead of sealant
- Hard, crazed mastic that has stopped moving
- Sealant that has lost its bond to the brick or render
Honest limits
It helps to know what we cannot do:
- Cutting new joints into brickwork, which is building work rather than sealant work
- Subsidence or other structural problems
- Damp that isn’t coming from the joint
If in doubt, ring 0345 464 0079 or send us an email and we’ll say what we think before you book.
Joints and surfaces we work on
- Façade panels
- Joints between brick and frames
- Render & cladding joints
- Copings & trims
- Brickwork movement joints
- Concrete & block
External mastic in Tadmarton
As ARBOMaster approved applicators, we choose exterior sealants to suit the joint and the surfaces. Some surfaces need a primer before sealing. Common call-outs are for failed sealant between panels on a façade and cracked joints where brick meets render or frames, on concrete & block, façade panels and render & cladding joints.
Outside joints can only be sealed when they’re dry, so work in Tadmarton is booked around the forecast. Let us know about access to every wall, plus any garages or outbuildings.
Whatever the size of the job, you get the same one-year guarantee in Tadmarton and across Oxfordshire.
- Where
- Tadmarton (OX15)
- Wider area
- Oxfordshire
- Cover
- 12 months on all our work
- Quotes
- Quoted before any work starts
- Telephone
- 0345 464 0079
- Last updated
- 26 October 2026
Work for landlords, hotels and businesses
Businesses can book us for washrooms, kitchens, offices and more. For commercial premises, we can talk through working times when we quote.
Mouldy or split sealant often shows up at the end of a tenancy. We can quote for more than one property at once.
Walls and rooflines in Tadmarton
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. With historic houses such as Broughton Castle (about 1.5 miles east) nearby, there’s older building stock in the area around Tadmarton as well as newer homes. In older buildings, older walls and rooflines need a sealant that moves with them and suits the material.
For an older house near a landmark such as Church of St Nicholas, old and new materials meet at the roofline and walls, which is where sealant earns its keep. Rented homes near Banbury station change hands often, and outside joints that have cracked can let damp into a rental, so check them between lets.
Tadmarton is about 4 miles south-west of Banbury, in Oxfordshire. Anywhere in OX15, we cover external mastic for homes and businesses. Our Oxfordshire coverage runs to 443 places, and Tadmarton is one of them. Oxford is on our list too, about 21 miles from Tadmarton.
Our applicators cover all of OX15 for external mastic. Local streets include Main Street and Old Glebe, all of which we cover. Close by, we work in Swalcliffe (1 mile west), Shutford (2 miles north), Milcombe (2 miles south-east), Burdrop (2 miles west) and Sibford Ferris (2 miles west). Further out, we also cover Banbury (4 miles north-east), Bicester (15 miles south-east), Bure Park (14 miles south-east), Chipping Norton (8 miles south-west), Neithrop (3 miles north-east) and Grimsbury (5 miles north-east).
What’s near Tadmarton
In Tadmarton, that means homes and buildings near The Lampet Arms, among other places. The nearest railway station is Banbury station, about 4.5 miles east of the centre. Nearby you’ll also find Horton General Hospital (4 miles east) and Broughton Castle (1.5 miles east). Open spaces near Tadmarton include Crouch Hill and Woodford Bottom and Lamb's Pool.
Aftercare tips
A little care helps the new joints last. We recommend:
- Keep high-pressure jets off the joints
- Do not let climbing plants root in the sealant
- Make sure movement joints aren’t pointed over
- Leave the joints unpainted unless we’ve said otherwise
If you have more work done on the wall, such as new render, cladding or an opening, show the contractor the movement joints. They must stay as flexible joints, never rendered or pointed over.
A joint that has stopped moving pushes the movement elsewhere, often as cracks near the joint. Catch it early and you reduce the risk.
What affects the cost of external mastic
You’ll get a clear quote before we start. It takes into account:
- The product the joint needs
- Any mould that needs treating
- Access and height
- The number and length of the joints
Some things make a job bigger or smaller: the old material and how easily it comes out, any mould to treat, and whether we need extra access for height. Your quote takes all of that into account.
Asking for a quote
Photos help, but a description is a good start. Try to tell us:
- Pictures of the joints, sent by email
- Access, such as stairs, a lift or height
- The problem you’ve noticed
- Any previous sealing or DIY work
It all starts with a short chat. Tell us what’s wrong, where it is and how much there is, and we will explain how we’d tackle it. Whenever you’re ready, call 0345 464 0079 or send us an email.
Common questions in Tadmarton
Can you help a landlord with a rental near Banbury station?
Yes. We work for landlords and agents as well as householders, and several properties can go on one quote. Just ring 0345 464 0079 or send us an email with the address and what needs doing, and we’ll send you a clear quote.
Can you do external mastic in Tadmarton?
Yes. We work across London and the South East, and Tadmarton is part of that. You can call 0345 464 0079 or send us an email and let us know what needs doing.
Can you quote for more than one area?
Of course. Combining jobs makes good use of the visit, so mention them when you ask for a quote.
How often do external joints need resealing?
That varies with the weather the wall faces, how much it moves and the sealant used. Treat it as a maintenance item and look at it yearly and renew it when it starts to fail.
Will the old sealant be removed?
Yes. We cut out all the old sealant and clean the joint before resealing.
What do you put in the joint?
It depends on the joint: sanitary silicone where it gets wet, and sealants suited to movement or weather elsewhere. Brands we use include Arbo and Everbuild.
Are you ARBOMaster approved?
Yes. We hold ARBOMaster approved applicator status.
Is there any odour?
Sometimes, a little. It fades as the sealant cures, and ventilation helps.
Also near Tadmarton
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Why deal with it now?
Low-modulus sealants stretch easily, so they put less strain on the joint edges. That protects surfaces like brick, render and concrete. A stiffer product can damage the joint edge as it fails. Older cottages and farmhouses around Tadmarton can have timber floors and frames, and water through a failed joint can rot timber if it’s left.
Leaving a failed joint normally makes the job bigger, not smaller. If you’re unsure, ring 0345 464 0079 or send us an email and we’ll give you an honest view and a quote.
Why us?
- A 12-month guarantee on all work
- 20+ years of sealant experience
- We never seal over old sealant
- White, clear, grey or coloured to suit, where the product allows
The process
Good joint work is mostly preparation, so that is where we spend the time. Every joint is cleaned and dried before new material goes in. In total, it normally takes a few hours to a few days, depending on the length of joint and the access. In a small place like Tadmarton, access is normally the main thing to plan. If the job is outside, mention outbuildings, exposed walls and how to reach them.
- We inspect the joints and agree which need resealing and how they’ll be reached.
- Old sealant and any debris are cut and raked out.
- The joint faces are cleaned and primed where the sealant needs it.
- We push in closed-cell backing rod so the sealant is the right depth and bonds to the sides only.
- We gun in a flexible exterior sealant in a colour that suits the wall and tool it neatly.
Getting ready for the visit
- Tell us about any water getting in
- Where the joints are inside, avoid wetting them before we arrive
- Tell us about access, such as stairs, a lift or high-level joints
Ask for a quote
Call for a quick quote, or send an email if you’d rather. Tell us about the joints that need doing and we’ll explain what’s involved and give you a clear price.
Related advice
How the job changes by surface
Brickwork movement joints
Brick moves with heat and moisture, and grows a little over time. The movement joint takes that up, so its sealant has to stay flexible.
Cladding and façade panels
Where a cladding system has its own specified sealant, we follow it. Send us any details you have about the façade.