Oxfordshire · England
External & façade joints in North Leigh, Oxfordshire
Problem with your movement joints in North Leigh? We remove the old material, prepare the joints and seal them properly.
- Sealant that has lost its bond to the brick or render
- Panel joints letting water in
- Failed seals between different materials
Different surfaces, different methods
Joints between dissimilar materials
Joints where frames, sills or panels meet the wall are common leak points. The old joint is removed and a sealant that bonds to both sides goes in.
Render joints
Rendered walls have joints at beads, openings and changes of material. We reseal them with a flexible exterior sealant that suits the render colour.
About our external mastic in North Leigh
On houses, flats and commercial buildings across North Leigh, we reseal joints in brickwork, render, cladding and façade panels. The preparation is the same whatever the wall: clean joint faces and the right depth. If you have damp patches traced to an open external joint and joints pointed up with cement by mistake, we can help, whatever the surface.
Around North Leigh, older buildings can be stone, brick or timber-framed, many with extensions added later. Where one material meets another is where water normally gets in, and they need the right sealant at the right depth.
A one-year guarantee comes as standard, so you are not left on your own once the job is done.
- Location
- North Leigh (OX29)
- Region
- Oxfordshire
- Cover
- A year, on every job
- Quotes
- Quoted before any work starts
- Telephone
- 0345 464 0079
- Updated
- 26 October 2026
Should I try it myself first?
The biggest DIY mistake is sealing over old sealant. New silicone won’t bond to old, so it lifts and traps water and mould underneath. Everything old must be removed first.
If you’ve already had a go yourself, that is fine. We cut it out and start again, so tell us about it when you ask for a quote.
What we do, step by step
All our tools and materials come with us in the van, so you don’t need to buy or prepare anything. After a quick look at the joints together, the area is protected and the work begins. It normally takes anything from a few hours to several days, depending on the building. For a village or hamlet like North Leigh, the journey is planned in advance: tell us about narrow lanes, gates, long drives and where we can park. We bring what the job needs, so it can be finished in one trip where possible.
- First we look over the joints with you, agree which to renew and talk through access.
- 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 access, such as stairs, a lift or high-level joints
- For business premises, tell us about site rules or sign-in
- Tell us if parking is tricky
How to get a quote
If you are in North Leigh and need external mastic, phone 0345 464 0079 or send us an email. Tell us what the problem is and where, and we will agree the price before any work begins.
Related advice
What affects the cost of external mastic
The price is agreed before any work begins. It takes into account:
- Mould in or behind the old joints
- When we can work, for business premises
- The product the joint needs
- How many rooms, windows or areas are involved
Homes and businesses are quoted the same way: how much there is to do, how we reach it and what it needs, along with when we can work on site. Ask us for a quote and we will explain what it covers.
What to tell us for a quote
When you call or email, these details help:
- Access, such as stairs, a lift or height
- A few photos by email, if you can
- Whether it’s a home or a business
- The problem you’ve noticed
Every job is quoted individually, so the first step is telling us about yours. Just call 0345 464 0079 or drop us an email with the details, and pictures are welcome.
What else we do in North Leigh
For landlords and businesses
We also work for property managers and facilities teams in North Leigh and across Oxfordshire. Several sites can be quoted together, and we’re fully insured.
Businesses can book us for washrooms, kitchens, offices and more. For commercial premises, we can talk through working times when we quote.
Walls and rooflines in North Leigh
London and the South East are among the drier parts of the UK, though outdoor sealant still has to go onto a dry joint, so the forecast decides the day. With historic houses such as Blenheim Palace (about 3.9 miles north-east) nearby, there’s older building stock in the area around North Leigh as well as newer homes. In older buildings, older brick and stone need a sealant that suits them, at the right joint depth.
Letting a property close to Combe station? Then outside joints that have cracked can let damp into a rental, so check them between lets. Schools such as North Leigh Church of England (Controlled) School are buildings too, and larger buildings have long runs of movement joint that eventually need resealing. For an older house near a landmark such as St Mary's Church, old and new materials meet at the roofline and walls, which is where sealant earns its keep.
North Leigh is about 3 miles north-east of Witney, in Oxfordshire. Homes, rented property, offices and hotels in North Leigh is covered for external mastic. Every job comes with our 12-month guarantee. North Leigh is one of 443 towns and villages in Oxfordshire where we work. We also work in Oxford, about 10 miles from North Leigh.
Jobs for external mastic in OX29 works the same way as everywhere else we cover. We cover properties on Church Road, Cuckamus Lane and Windmill Heights. If you are just outside North Leigh, we cover New Yatt (1 mile west), East End (1 mile north-east), Freeland (2 miles east), Poffley End (2 miles west) and Delly End (2 miles west). Larger places within reach include Oxford (10 miles south-east), Bicester (14 miles north-east), Abingdon-on-Thames (12 miles south-east), Witney (3 miles south-west), Carterton (7 miles south-west) and Wantage (15 miles south).
Local landmarks in North Leigh
Around North Leigh, our work takes us to homes and buildings near The Masons Arms Public House and Wood Green School. The closest station to North Leigh is Combe station, roughly 2.4 miles north-east of the centre. Well-known places in the area include Cogges Manor Farm Museum (2.5 miles south-west). The countryside around North Leigh includes Blenheim Farm.
When it is not the sealant
In fairness, some problems need a different trade:
- Movement that is more than a sealant joint can take
- Failed render or damaged cladding panels
- Cracks in the bricks or render themselves, away from the joints
If in doubt, ring 0345 464 0079 or send us an email and we’ll say what we think.
Joints and surfaces we work on
- Joints between brick and frames
- Brickwork movement joints
- Copings & trims
- Façade panels
- Render & cladding joints
- Concrete & block
Why it’s worth doing now in North Leigh
Sealing over the top of old mastic doesn’t hold for long. The new layer cannot bond properly to old, weathered material, so the old joint is cut out fully first. In a small place like North Leigh, homes can be exposed to wind and rain, which finds any gap, and damp in older walls is slow to dry out.
The cost depends on the size of the job, how hard the old material is to remove and how easy the joints are to reach. You will have a clear quote before any work starts, so you know where you stand.
Why North Leigh customers choose us
- A choice of colours where the product allows
- One-year guarantee on every job
- Tidy, careful work
- Colour agreed with you before any work starts
Take a look at what affects the cost or what customers say.
Common questions in North Leigh
Do you cover smaller places like North Leigh?
Yes, we do. We work across London and the South East, from towns to the smallest places. The journey is planned ahead, so it helps to know about access.
Is North Leigh in your area for external mastic?
Yes, North Leigh is within the area we cover. We work across London and the South East. You can call 0345 464 0079 or email us and let us know what needs doing.
Do the sealants smell?
It depends on the product. Some smell for a while, some hardly at all, and any smell fades as they cure.
Should I point up the gap in my brickwork?
No, not if it’s a movement joint. Filling it with mortar defeats its purpose. We’ll reseal it with a flexible sealant.
I’m a tenant. Can you help?
Yes. Ask your landlord first, and we can send them the quote if that helps.
What do you need from me for a quote?
The location, the problem and the rough size of the job. Photos by email help too.
How long does external mastic take?
That depends on the amount of work, but most jobs take anything from a few hours to several days, depending on the building. We will give you a better idea when we quote.
Do you have insurance?
Yes. Mr Mastic is fully insured.