Oxfordshire · England
External Mastic in Brize Norton
Professional external mastic in and around Brize Norton, with old sealant always removed completely.
- Rain getting behind render or cladding at a joint
- Brick movement joints where the sealant has split
- Hard, crazed mastic that has stopped moving
External mastic in Brize Norton, done properly
A movement joint is only as good as its depth. Backing rod controls how deep the sealant goes and keeps it off the back of the joint, so it bonds to the two sides only and can stretch. Typical jobs include joints pointed up with cement by mistake and plants rooting in failed movement joints, on brickwork movement joints, façade panels and concrete & block.
Outside joints can only be sealed when they’re dry, so work in Brize Norton is booked around the forecast. Let us know about access to every wall, plus any garages or outbuildings.
You are covered for a year from the day we finish. If anything isn’t right with it, phone 0345 464 0079 or drop us an email.
- Place
- Brize Norton (OX18)
- Wider area
- Oxfordshire
- Guarantee
- A year, on every job
- Price
- A clear price before work begins
- Call
- 0345 464 0079
- Updated
- 26 October 2026
Different surfaces, different methods
Brickwork movement joints
Clay brickwork grows slightly over its life and moves with the weather. The movement joint takes that up, so the sealant in it must stay soft and stretchy.
Copings and trims
Coping and trim joints face rain and sun head on. We reseal them with an exterior sealant suited to the material.
Nearby places to Brize Norton
What else we do in Brize Norton
DIY versus a professional finish
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 a professional job adds is preparation and the right product. Joints are cleaned back to sound surfaces and dried, and the sealant is chosen for how the joint moves and where it is, and the work is guaranteed for a year.
Why it’s worth doing now in Brize Norton
It often makes sense to reseal all the failing joints on an elevation together. Joints of the same age tend to fail together. Older cottages and farmhouses around Brize Norton can have timber floors and frames, and water through a failed joint can rot timber if it’s left.
Commercial jobs are quoted on the same basis as homes: the amount of work, the access and the products needed, plus any working-time requirements on site. Call for a quick quote and we will go through it with you.
Why book with us
- Any old sealant cut out fully, not covered over
- 180+ five-star Google reviews
- Every job guaranteed for a year
- You choose the colour before work begins
Read how sealant jobs are priced and our reviews.
Outside joints around Brize Norton
The South East is one of the drier parts of the UK, yet outdoor joints still have to be sealed dry, so jobs are booked with the weather in mind. With historic houses such as Minster Lovell Hall (about 2.8 miles north-east) nearby, there’s older building stock in the area around Brize Norton as well as newer homes. In older buildings, older brick and stone need a sealant that suits them, at the right joint depth.
If you look after a building such as Brize Norton Primary School, movement joints, cladding joints and gutters on larger buildings need the same care as a house’s.
Brize Norton is about 1 mile east of Carterton, in Oxfordshire. From the centre of Brize Norton to the outskirts, we cover external mastic for every kind of property. We cover 443 towns and villages across Oxfordshire, large and small. There’s also a page for Oxford, roughly 14 miles from Brize Norton.
Postcode districts we cover here for external mastic: OX18. That includes homes and businesses on Station Road, Daubigny Mead and Moat Close and the roads around them. Neighbouring places we cover for external mastic include Carterton (1 mile west), Curbridge (2 miles east), Black Bourton (2 miles south-west), Minster Lovell (2 miles north) and Bampton (3 miles south). Larger places within reach include Oxford (14 miles east), Abingdon-on-Thames (14 miles south-east), Witney (4 miles north-east), Wantage (14 miles south-east), Grove (12 miles south-east) and Faringdon (8 miles south).
Landmarks near Brize Norton
Around Brize Norton, our work takes us to homes and buildings near The Chequers pub and Carterton Community College, among other places. Well-known places in the area include Cogges Manor Farm Museum (4 miles east) and Bronze Age Bowl Barrow (2.3 miles south-west).
Work for landlords, hotels and businesses
We work for landlords and agents as well as homeowners. Sealant work between tenants is a simple way to keep a property in good order before the next move-in.
Mouldy or split sealant often shows up at the end of a tenancy. Several properties can go on one quote.
The process
Before we leave, we go over the finished joints with you and explain the cure time. The visit itself generally takes a few hours for a handful of joints, longer for a whole elevation, depending on the amount of work. In a small place like Brize Norton, access is normally the main thing to plan. For outside work, also let us know about exposed walls and any outbuildings involved.
- We inspect the joints and agree which need resealing and how they’ll be reached.
- We cut out the failed sealant and rake out any dirt or growth.
- We clean both faces of the joint and prime them where the product calls for it.
- Closed-cell backing rod is fitted to set the depth and stop three-sided bonding.
- A flexible exterior sealant is applied and tooled in a colour to suit the wall.
Getting ready for the visit
- Let us know about parking restrictions
- Mention any tricky access
- Mention if the joints have been sealed before
Getting a quote
A good description makes for an accurate quote. Tell us where the job is, what’s wrong and how much there is.
Read more
Signs you need external mastic in Brize Norton
Buildings move more than people expect. Brickwork grows a little over the years, blockwork and concrete shrink, and all of it moves with heat and moisture. The sealant in the movement joints takes that strain.
It’s worth asking for a quote if you see:
- Joints where the bead has come unstuck
- Failed seals between different materials
- Water getting into walls through failed joints
- Rigid filler in a joint that should flex
Homes close to Church of St Britius include some older properties, and an extension built onto an older house moves differently, and the joint between them takes the strain.
What your quote should include
- Whether VAT is included
- How hidden problems are handled
- When the joint can take water or movement
- Is the old sealant removed completely?
When it isn’t the sealant
Sealant is not the answer to every problem, and we’d rather say so up front. It won’t solve:
- Structural movement, which needs a surveyor or engineer
- Cutting new joints into brickwork, which is building work rather than sealant work
- Rising or penetrating damp from elsewhere in the wall
If in doubt, ring 0345 464 0079 or send us an email and we’ll say what we think.
What we seal
- Copings & trims
- Concrete & block
- Brickwork movement joints
- Façade panels
- Joints between brick and frames
- Render & cladding joints
Questions from Brize Norton
Is external mastic in Brize Norton guaranteed?
Every job comes with our one-year guarantee, wherever it is. We’re also fully insured and ARBOMaster approved.
Is Brize Norton in your area for external mastic?
Yes, Brize Norton is within the area we cover. We work across London and the South East. Just call 0345 464 0079 or drop us an email with a few details of the job, and we’ll give you a clear price.
How long should I leave it?
Most sealants are touch-dry well before they’re fully cured. We will give you the cure time for the product we used.
How do you reach high-level joints?
That depends on how high the joints are and the ground below. Low-level joints are straightforward; for higher ones, send details and we’ll confirm the access.
Is it OK to seal over old sealant?
No. Fresh sealant doesn’t stick to old sealant, and it traps any mould or water underneath. It all has to come out first.
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 information do you need?
Where the job is, what the problem is and roughly how big it is. If you can, email a few photos.
Can you work on commercial sites?
Yes. Hotels, offices and other businesses use us.