Oxfordshire · England
Long Hanborough External Mastic
Sealing brickwork movement joints, render, cladding and façade joints for homes and businesses in Long Hanborough and across Oxfordshire. ARBOMaster approved applicators, fully insured, with a 12-month guarantee.
- Old sealant gone brittle and cracked
- Water getting into walls through failed joints
- Gaps where render, brick and frames meet
External mastic for homes and businesses in Long Hanborough
Low-level joints can generally be done from the ground. Where joints are higher up, tell us about the building when you get in touch and we’ll confirm what access is needed. We work on concrete & block, render & cladding joints and copings & trims, and the jobs we see most are plants rooting in failed movement joints and joints pointed up with cement by mistake.
In a smaller place like Long Hanborough, some homes face open ground, and walls and rooflines facing the weather take the worst of it. That’s where gutter joints and wall joints tend to fail first.
All our work is covered by a 12-month guarantee.
- Place
- Long Hanborough (OX29)
- Region
- Oxfordshire
- Guarantee
- A year, on every job
- Quote
- Quoted before any work starts
- Phone
- 0345 464 0079
- Updated
- 26 October 2026
What happens on the day
A visit follows a simple pattern: we look at the joints together, mask and protect the surrounding surfaces, carry out the job and tidy away. It normally takes anything from a few hours to several days, depending on the building. In a smaller place like Long Hanborough, parking is seldom the issue; lanes, gates and long drives are worth mentioning. For outside work, side access and the height of the joints help us plan.
- 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.
Before we arrive
- Keep pets and children clear of the area while we work
- For indoor joints, keep the area dry beforehand if you can
- Mention any parking rules near the property
Get a quote
We don’t publish a price list, because every job is different. Instead, your job gets its own clear quote. To arrange one, phone 0345 464 0079 or email us.
Advice
What external mastic looks like in Long Hanborough
London and the South East are among 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 Blenheim Palace (about 1.9 miles north-east) nearby, there’s older building stock in the area around Long Hanborough 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 split movement joints are easy to miss on a rental until damp shows inside. If you look after a building such as Hanborough Manor CofE School, movement joints, cladding joints and gutters on larger buildings need the same care as a house’s.
Long Hanborough is about 5 miles north-east of Witney, in Oxfordshire. From the centre of Long Hanborough to the outskirts, we cover external mastic for every kind of property. Long Hanborough is one of 443 places in Oxfordshire where we work for external mastic. Our Oxford page covers work nearby, about 9 miles away.
Every address in OX29 is covered for external mastic, from the main roads to the quietest streets. If you need external mastic at a property on Church Road, New Road and Churchill Way or a nearby road, we can help. Other places close to Long Hanborough include Church Hanborough (1 mile south-east), Bladon (2 miles east), Woodstock (3 miles north-east), Worton (3 miles south-east) and Begbroke (3 miles east). Larger places within reach include Oxford (9 miles south-east), Bicester (12 miles north-east), Abingdon-on-Thames (11 miles south-east), Witney (5 miles south-west), Carterton (9 miles south-west) and Grove (15 miles south).
Near you in Long Hanborough
Locally, jobs take us to homes and businesses close to Three Horseshoes pub. The nearest railway station is Combe station, about 0.6 miles north. Other landmarks nearby include Morris Motors Museum (1 mile east). Not far away are Blenheim Farm.
How we quote for external mastic
Some jobs are bigger than they look, and some smaller. What affects the quote:
- The type of sealant required
- The old material and how stubborn it is
- The number of rooms or windows
- How much there is to do
A failed joint rarely gets cheaper to fix by waiting, as water and mould keep getting in. If you’re unsure, ring 0345 464 0079 or drop us an email and we will give you an honest view and a quote.
What we need to know
To help us quote quickly, let us know:
- Photos by email, if that’s easy
- How we’d reach the joints
- Any previous sealing or DIY work
- Where the job is, and your postcode
If you are in Long Hanborough and need external mastic, call 0345 464 0079 or email us. A short description of the job and where it is helps us quote, and you will get a clear quote before any work starts.
Why act early in Long Hanborough
A properly done movement joint is an even line in a colour that suits the wall. A hurried job with smeared edges and no backing looks worse and fails sooner so it’s worth doing right. In a smaller place like Long Hanborough, wherever a wall is exposed, a failed outside joint is a real source of damp. Inside, a split seal lets water into floors and panels just as it would anywhere.
Instead of a standard rate, we price the job in front of us: how many joints, what’s in them now and how we reach them. The price is agreed before we begin.
Why book with us
- Trusted Arbo and Everbuild sealants
- Sanitary silicone with an anti-fungal additive in wet areas
- More than 20 years in sealant work
- Fully insured
Read what affects the cost and what customers say.
Can I do it myself?
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.
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.
Signs you need external mastic in Long Hanborough
The wrong product in a moving joint is a classic cause. A stiff, general-purpose sealant cannot cope with a joint that moves a lot, and it tears off the sides.
If you can see any of these, it’s time to have the joints looked at:
- Rain getting behind render or cladding at a joint
- Plants rooting in failed movement joints
- Joints where the bead has come unstuck
- Panel joints letting water in
Homes close to Christ Church include some older properties, and older walls, gutters and the joints where extensions meet them need a flexible sealant.
Questions to ask before you book
- Which sealant they’ll use, and why
- What happens if the job turns out different
- Is VAT in the price?
- Whether they seal over old material or remove it
Honest limits
Honest advice matters more to us than a booking, so here’s what sealant can’t fix:
- Cracked brickwork or render that needs a builder or plasterer
- Structural movement, which needs a surveyor or engineer
- Damp that isn’t coming from the joint
Not sure which it is? You can phone 0345 464 0079 or drop us an email and we will tell you honestly.
Where we work in Long Hanborough
- Joints between brick and frames
- Concrete & block
- Copings & trims
- Façade panels
- Brickwork movement joints
- Render & cladding joints
Other services in Long Hanborough
For landlords and businesses
Failed sealant is one of the commonest items on a check-out report. Several properties can be quoted together.
In hotels, rooms out of use cost money, so the work can be planned room by room around your bookings where we can. Hotel work is part of what we do, alongside homes and businesses.
Long Hanborough: your questions answered
Do you cover smaller places like Long Hanborough?
Yes, Long Hanborough is covered. Our work covers London and the South East, from towns to the smallest places. Longer journeys are simply planned in advance.
Can you help a landlord with a rental near Combe station?
Yes. We work for landlords and agents as well as homeowners. Just phone 0345 464 0079 or send us an email with the address and what needs doing, and we will send you a clear quote.
Should I try DIY first?
You can, for simple jobs. Preparation is everything: all the old sealant out, and a clean, dry joint. We can always put it right if it fails.
Can you match the colour of my brickwork?
The sealant colour is picked to suit the wall, so the joint sits quietly in the wall. There’s a wide choice of exterior colours.
What do you put in the joint?
Quality sealants from brands including Arbo and Everbuild, picked for each joint. We will tell you what we’re using and why.
Where do you work from?
Our base is Crawley. We work across South East England, London and Scotland.
Can you do several jobs on one visit?
Yes. Tell us about everything you’d like done and we’ll quote it together.
What’s an expansion joint in brickwork?
Brickwork, render and cladding all move a little, and planned joints take up that movement. It’s closed with backing rod and a flexible sealant.