Oxfordshire · England
Brighthampton External Mastic
Problem with your movement joints in Brighthampton? We cut out the old, prepare the joints and apply the right sealant, and the work is guaranteed for a year.
- Damp patches traced to an open external joint
- Panel joints letting water in
- Old sealant gone brittle and cracked
About our external mastic in Brighthampton
For buildings in Brighthampton, we reseal external joints of all kinds, from brick movement joints to cladding panels. The preparation is the same whatever the wall: clean, sound faces and a controlled depth. We work on copings & trims, joints between brick and frames and brickwork movement joints, and the jobs we see most are sealant pulling away from one side of the joint and leaking joints around cladding and façade panels.
Somewhere as small as Brighthampton, homes and farm buildings often face open ground, so walls and rooflines take the full force of wind and rain. Joints on those walls need a sealant that moves with the building and stays in place.
A one-year guarantee comes as standard, so you’re covered after we’ve gone.
- Location
- Brighthampton (OX29)
- Wider area
- Oxfordshire
- Guarantee
- 12 months on all our work
- Price
- Quoted before any work starts
- Call
- 0345 464 0079
- Last updated
- 26 October 2026
Landlord and commercial work in Brighthampton
Letting agents often deal with us directly. Tell us the address, the job and how access works and we will quote.
Housing providers, facilities teams and property managers book us too. We can quote a run of properties together, and we are fully insured for the work.
What we cannot put right
A few problems are outside what sealant work can do:
- Walls that need new movement joints cut into them
- Damp from another source, such as a leaking gutter or a bridged damp-proof course
- Render that’s blown, hollow or coming away
If in doubt, call 0345 464 0079 or drop us an email and we will say what we think before you book.
Joints and surfaces we work on
- Concrete & block
- Brickwork movement joints
- Render & cladding joints
- Joints between brick and frames
- Copings & trims
- Façade panels
Also near Brighthampton
What else we do in Brighthampton
What the job involves on each surface
Brickwork movement joints
Brick walls have vertical movement joints to absorb expansion. We reseal them with a low-modulus sealant over backing rod coloured to suit the wall.
Joints between dissimilar materials
Brick against render, concrete against metal, stone against timber: every change of material is a joint. A flexible sealant bridges the two so neither cracks the other.
Common problems we fix in Brighthampton
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.
These are the problems we are asked about most:
- Weathered mastic that no longer stretches
- Panel joints letting water in
- Joints where the bead has come unstuck
- Joints with sealant missing in places
If you look after a building such as Mulberry Bush School, larger buildings have long runs of movement joint that eventually need resealing.
What to look for in a quote
- Which sealant they’ll use, and why
- What insurance they hold
- How the joint is cleaned and prepared
- What the quote includes, VAT included or not
Quotes for external mastic in Brighthampton
The quote reflects the job in front of us. We look at:
- Which sealant suits the joint
- How easy the joints are to reach
- The number of rooms or windows
- The old material and how stubborn it is
A few things move the cost up or down: the old material and how easily it comes out, whether mould needs treating, and whether the work is at height. We take all of that into account in your quote.
What to tell us for a quote
Photos help, but a description is a good start. Please mention:
- How many joints, rooms or windows are involved
- If someone has resealed it before
- What’s wrong with the joints now
- How we’d reach the joints
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. When it suits you, ring 0345 464 0079 or email us.
What happens on the day
All our tools and materials come with us in the van, so you do not need to buy or prepare anything. After a quick look at the joints together, we protect the area and start. Most jobs take anything from a few hours to several days, depending on the building. Somewhere like Brighthampton needs a little journey planning: tell us about narrow lanes, gates, long drives and where we can park. Everything for the job comes with us, so a second trip is avoided where possible.
- We start by walking round the building and agreeing the joints and the access.
- We cut out the old mastic and rake out anything in the joint.
- Joint faces are cleaned back and primed if the sealant needs it.
- Backing rod sized to the joint goes in to set the depth.
- The exterior sealant is applied, tooled and checked along its length.
Getting ready for the visit
- Tell us about any previous sealing or DIY attempts
- Move anything stored near the joints
- Keep pets and children clear of the area while we work
How to get a quote
If you are in Brighthampton and need external mastic, call 0345 464 0079 or email us. Tell us what the problem is and where, and we’ll agree the price before any work begins.
Read more
Aftercare tips
So the new joints stay in good condition:
- Keep water from gutters off the wall
- Avoid pressure-washing directly into sealant joints
- Show decorators and builders where the movement joints are
- Ask before painting over external sealant
Avoid pressure-washing straight into the joints. High-pressure water can lift the edges.
Leaks behind façade panels and render often go unseen. When it finally shows inside, the joint may have been open for years.
FAQs for Brighthampton
What guarantee comes with external mastic in Brighthampton?
All our work, in Brighthampton and everywhere else, comes with a 12-month guarantee. We’re also fully insured and ARBOMaster approved.
Do you cover Brighthampton for external mastic?
Yes. Our work covers London and the South East, and Brighthampton is part of that. Just call 0345 464 0079 or send us an email with a few details of the job, and we’ll give you a clear quote.
Are you ARBOMaster approved?
Yes. We hold ARBOMaster approved applicator status, and we are fully insured.
What do you put in the joint?
It depends on the joint: anti-fungal sanitary silicone in wet areas, and other sealants where joints move or face the weather. Brands we use include Arbo and Everbuild.
Can a movement joint be filled with mortar?
No, not where the gap is a movement joint. Filling it with mortar defeats its purpose and can lead to cracking. A flexible sealant is the right fill.
Are you insured?
Yes. Mr Mastic is fully insured, with over 20 years’ experience in sealant work.
Is there any odour?
Sometimes, a little. Any smell clears as the sealant cures, and ventilation helps.
When is the sealant fully cured?
It depends on the product and the conditions. We tell you how long to leave it before we go.
External mastic in Brighthampton: local notes
With historic houses such as Longworth House (about 2.5 miles south) nearby, there’s older building stock in the area around Brighthampton as well as newer homes. Where a home is older, older walls and rooflines need a sealant that moves with them and suits the material. 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.
If you live in an older home near St Giles' Church, the joints between older walls, newer extensions and the roofline need a sealant that can move.
Brighthampton is about 4 miles south-east of Witney, in Oxfordshire. Every kind of property in Brighthampton is covered for external mastic, old or new, large or small. Every job comes with our one-year guarantee. 443 places in Oxfordshire are on our list, large and small. There’s also a page for Oxford, about 9 miles away.
Here we cover the OX29 postcode area for external mastic. Local streets include Aston Road, Abingdon Road and Malthouse Lane, all of which we cover. Neighbouring places we cover for external mastic include Standlake (1 mile east), Hardwick (2 miles north), Stanton Harcourt (2 miles north-east), Ducklington (3 miles north-west) and South Leigh (3 miles north). Within a short drive, we also cover Oxford (9 miles east), Didcot (12 miles south-east), Abingdon-on-Thames (8 miles south-east), Witney (4 miles north-west), Carterton (7 miles north-west) and Wantage (10 miles south).
Local landmarks in Brighthampton
Typical jobs here are in homes near Standlake Church of England Primary School and The Black Horse Public House and the streets around them. Well-known places in the area include Hinton Waldrist Castle (2.8 miles south). For a walk, there’s Hitchcopse Pit.