Oxfordshire · England
External & façade joints in Hornton, Oxfordshire
Problem with your movement joints in Hornton? We remove the old material, prepare the joints and seal them properly, and the work is guaranteed for a year.
- Joints with sealant missing in places
- Rain getting behind render or cladding at a joint
- Joints pointed up with cement by mistake
Hornton: your questions answered
Can you do external mastic in Hornton?
Yes. Our work covers London and the South East, and Hornton is part of that. Just ring 0345 464 0079 or drop us an email with a few details of the job, and we’ll send you a clear quote.
Will you come out to Hornton?
Yes. Hornton is within the area we cover, which takes in towns, villages and rural addresses. We work across London and the South East. Just mention lanes, gates or anything else about the route when you book.
I rent my home. Can I book you?
Yes, but check with your landlord or agent first. Landlords are often happy for the work to be arranged.
Do you work for hotels and businesses?
Yes, regularly. We can plan bigger jobs in stages to suit the site.
Do you remove the old sealant?
Yes, every time. New sealant won’t bond properly to old, so the joint is cleaned back first.
How long will you be here?
As a guide, most jobs take a few hours for a handful of joints, longer for a whole elevation. Larger jobs naturally take longer.
Will there be a smell?
There can be a smell while the sealant cures. Opening a window helps.
Are you ARBOMaster approved?
Yes. We are approved under the ARBOMaster scheme.
About our external mastic in Hornton
We’re ARBOMaster approved applicators, and each external joint gets a sealant suited to it. Porous or awkward surfaces are primed where the sealant needs it. We work on façade panels, copings & trims and joints between brick and frames, and people most often call us about panel joints letting water in and damp patches traced to an open external joint.
In a village or hamlet like Hornton, older cottages and farm buildings often stand in the open, so walls and rooflines take the full force of wind and rain. Gutter joints and wall joints there need a sealant that can flex and stay put.
We stand behind the work with a one-year guarantee.
- Where
- Hornton (OX15)
- Wider area
- Oxfordshire
- Cover
- One year on every job
- Quotes
- A clear price before we start
- Telephone
- 0345 464 0079
- Last updated
- 26 October 2026
Work for landlords, hotels and businesses
We also work for property managers and facilities teams. Several sites can be quoted together, and we are fully insured for the work.
Businesses can book us for washrooms, kitchens, offices and more. For commercial premises, we can talk through working times when we quote.
What external mastic looks like in Hornton
Rainfall in the South East is lower than in much 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 Upton House (about 1.6 miles west) nearby, there’s older building stock in the area around Hornton as well as newer homes. In older buildings, older brick and stone need a sealant that suits them, at the right joint depth.
For site and facilities teams at buildings such as Hornton Primary School, its movement joints, gutters and trims need looking after like any other building’s.
Hornton is about 4 miles north-west of Banbury, in Oxfordshire. Every kind of property in Hornton can book us for external mastic. Every job comes with our 12-month guarantee. Hornton is one of 443 towns and villages in Oxfordshire where we work for external mastic. There’s also a page for Oxford, about 26 miles away.
Every address in OX15 is within our area for external mastic, from the main roads to the quietest streets. If you need external mastic at a property on Pages Lane, The Green and Eastgate or anywhere close by, our applicators can take on the job. Close by, we work in Ratley (2 miles north-west), Edgehill (2 miles north-west) and Sun Rising (2 miles west). We also work in nearby towns such as Banbury (4 miles south-east), Chipping Norton (12 miles south-west), Neithrop (4 miles south-east), Grimsbury (5 miles south-east), Ruscote (4 miles south-east) and Bloxham (6 miles south).
Landmarks near Hornton
A little further out are Horton General Hospital (5.1 miles south-east) and Hanwell Castle (2.8 miles east). Green spaces nearby include Edge Hill.
Looking after it afterwards
Good habits help new joints last longer. Our tips:
- Point out the joints to other trades
- Wash walls gently around the sealant
- Ask before painting over external sealant
- Do not let climbing plants root in the sealant
Only paint over the joint if we’ve confirmed the sealant can take paint. Paint can crack on a flexible joint.
Gaps, plants or missing sealant in a joint are worth getting looked at. Earlier resealing means a smaller job and a better result.
Also near Hornton
What else we do in Hornton
What we are called out for in Hornton
Sunlight, wet weather and frost wear exterior sealant down. Over the years it hardens, cracks on the surface and loses its give, so the next time the wall moves, it splits or pulls away.
Keep an eye out for any of the following:
- Weeds or debris growing in open joints
- Movement joints filled with mortar instead of sealant
- Brick movement joints where the sealant has split
- Leaking joints around cladding and façade panels
In the older streets around Church of St John the Baptist, the joints between older walls, newer extensions and the roofline need a sealant that can move.
Before you book anyone
- Who turns up on the day
- Is VAT in the price?
- The length of the guarantee
- Whether they seal over old material or remove it
What sealant work cannot fix
New sealant cannot fix everything, and we’d rather say so up front. It will not solve:
- Walls that need new movement joints cut into them
- Loose or hollow render, which needs re-rendering
- Cracked brickwork or render that needs a builder or plasterer
If you’re not sure, just ring 0345 464 0079 or email us and we’ll give you a straight answer.
Joints and surfaces we work on
- Copings & trims
- Joints between brick and frames
- Concrete & block
- Façade panels
- Render & cladding joints
- Brickwork movement joints
What the job involves on each surface
Cladding and façade panels
Metal and composite panels move a lot with temperature, so the joints work hard every day. We choose the product to suit.
Concrete and blockwork
Wide joints in concrete need the depth controlling carefully. Backing rod sized to the joint sets it and keep the sealant to the right depth.
The process
We bring everything the job needs with us, so there’s nothing for you to buy. After a quick look at the joints together, the area is protected and the work begins. It normally takes a few hours for a handful of joints, longer for a whole elevation. Somewhere as small as Hornton, access is often the only tricky part. For outside work, also let us know about exposed walls and any outbuildings involved.
- 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.
- Primer is applied wherever the sealant needs it.
- A low-modulus exterior sealant is gunned in and tooled to a neat finish.
Preparing for the visit
- Tell us about any previous sealing or DIY attempts
- Tell us about access, such as stairs, a lift or high-level joints
- Keep pets and children clear of the area while we work
Ask for a quote
There’s no standard price list. Instead, we send you a clear quote for your job. To get started, call 0345 464 0079 or send us an email.
Read more
DIY versus a professional finish
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.
A DIY attempt does not rule out a professional job. We cut it out and start again, so tell us about it when you ask for a quote.