Oxfordshire · England
External Mastic in Burdrop
External mastic for Burdrop and the surrounding area: the right sealant, proper preparation and a neat finish. Ask us for a quick quote.
- Movement joints with cracked, split or missing sealant
- Rigid filler in a joint that should flex
- Failed seals between different materials
How we handle external mastic in Burdrop
Joints between dissimilar materials, like brick against render or concrete against a steel frame, see movement from both sides. A flexible sealant bridges the two where a rigid filler would soon crack. We work on joints between brick and frames, render & cladding joints and façade panels, and people most often call us about joints pointed up with cement by mistake and panel joints letting water in.
Outside joints can only be sealed when they’re dry, so work in Burdrop is booked around the forecast. Tell us about access to all sides of the building, including outbuildings and garages.
You’re covered for a year from the day we finish. If anything is not right with it, phone 0345 464 0079 or send us an email.
- Where
- Burdrop (OX15)
- Wider area
- Oxfordshire
- Guarantee
- One year on every job
- Quote
- A clear quote up front
- Phone
- 0345 464 0079
- Page updated
- 26 October 2026
Different surfaces, different methods
Render joints
Cracks along render joints let water in behind the coat. Resealing the joints early keeps water out and protects the render itself.
Concrete and blockwork
Blockwork and concrete shrink over time and move with the seasons. We reseal their joints with backing rod and a flexible product.
Also near Burdrop
What else we do in Burdrop
DIY versus a professional finish
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.
A DIY attempt does not rule out a professional job. We remove it and do the joint properly.
What happens on the day
The work is kept neat and contained to the joints we’re treating. Expect the work to take a few hours for a handful of joints, longer for a whole elevation. Somewhere like Burdrop needs a little journey planning: let us know about lanes, gates and parking. We bring what the job needs, so it can be finished in one trip 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
- Move anything stored near the joints
- Mention any leaks or damp you’ve noticed
- Plan for the work area to be out of bounds to pets and children
Ask for a quote
Want a quote for external mastic? Please call 0345 464 0079 or drop us an email and tell us about the job. We’ll explain what we’d do and give you a clear quote before work begins.
Advice
Outside joints around Burdrop
Historic houses like Broughton Castle (about 3.8 miles east) are a reminder that the area around Burdrop has older buildings as well as new. In older buildings, older walls and rooflines need a sealant that moves with them and suits the material. The South East is one of the drier parts of the UK, though outdoor sealant still has to go onto a dry joint, so the forecast decides the day.
Managing a site like Sibford Gower Endowed Primary School? Then its movement joints, gutters and trims need looking after like any other building’s.
Burdrop is about 6 miles west of Banbury, in Oxfordshire. From the centre of Burdrop to the outskirts, external mastic is available for homes and businesses alike. Burdrop is one of 443 towns and villages in Oxfordshire where we work for external mastic. You can also see our page for Oxford, about 22 miles away.
Here we cover the OX15 postcode area for external mastic. That includes homes and businesses on Hawk's Lane and Acre Ditch and the roads around them. We also cover Sibford Gower (1 mile west), Sibford Ferris (1 mile south), Swalcliffe (1 mile east), Epwell (2 miles north) and Tadmarton (2 miles east). Larger places within reach include Banbury (6 miles east), Chipping Norton (7 miles south-west), Neithrop (5 miles east), Grimsbury (7 miles east), Ruscote (5 miles east) and Woodstock (14 miles south-east).
What’s near Burdrop
In Burdrop, that means homes and buildings near Sibford School, among other places. Nearby you will also find Broughton Castle (3.8 miles east). Open spaces near Burdrop include Castle Hill and Woodford Bottom and Lamb's Pool.
What affects the quote in Burdrop
We do not publish a price list, because jobs vary so much. What we look at:
- How much old sealant there is and how hard it is to remove
- The number of rooms or windows
- When we can work, for business premises
- Whether the work is at height
What you pay reflects the work, not guesswork. That’s why we ask about the job first and agree the price before starting.
What to tell us for a quote
When you contact us, these details help:
- The address or postcode of the job
- Photos by email, if that is easy
- What’s wrong with the joints now
- The rough size of the job
A good description makes for an accurate quote. Tell us where the job is, what’s wrong and how much there is.
FAQs for Burdrop
Is external mastic in Burdrop guaranteed?
Every job comes with our 12-month guarantee, wherever it is. We are also fully insured and ARBOMaster approved.
Is Burdrop in your area for external mastic?
Yes, Burdrop is within the area we cover. We work across London and the South East. You can call 0345 464 0079 or email us and tell us what needs doing.
Can you work on commercial sites?
Yes. Commercial and hotel work is a large part of what we do. We can talk about working times when we quote.
Do you remove the old sealant?
Yes, every time. New silicone does not stick to old silicone, so the joint is cleaned back first.
Are you an approved applicator?
Yes. We hold ARBOMaster approved applicator status and we are fully insured too.
Can landlords and businesses book you?
Yes. As well as homeowners, we work for landlords, agents, businesses and hotels in Burdrop.
Should I try DIY first?
You can, for simple jobs. Preparation is everything: all the old sealant out, and a clean, dry joint. If it does not work out, we can redo it.
Can I add another job to the visit?
Yes. Tell us about everything you’d like done and we’ll quote it together.
Common problems we fix in Burdrop
Sunlight, wet weather and frost wear exterior sealant down. Over the years it hardens, cracks on the surface and loses its give, so the joint eventually tears or comes away from one side.
Most people get in touch when they notice something like this:
- Sealant pulling away from one side of the joint
- Rain getting behind render or cladding at a joint
- Movement joints with cracked, split or missing sealant
- Rigid filler in a joint that should flex
If you live in an older home near Church of Holy Trinity, an extension built onto an older house moves differently, and the joint between them takes the strain.
Comparing quotes
- What the cure time is
- How long the guarantee is
- How hidden problems are handled
- Whether all the old sealant comes out first
When it isn’t the sealant
To be straight with you, there are a few things sealant will not fix:
- Render that is blown, hollow or coming away
- Rising or penetrating damp from elsewhere in the wall
- Walls that need new movement joints cut into them
Not sure which it is? You can ring 0345 464 0079 or drop us an email and we’ll tell you honestly.
Surfaces we seal
- Façade panels
- Render & cladding joints
- Concrete & block
- Brickwork movement joints
- Joints between brick and frames
- Copings & trims
Landlords, agents and businesses in Burdrop
Water getting past a failed joint can damage the building, which is a bigger problem in a rented property. Resealing at the right time is simple maintenance.
We regularly work with letting and managing agents. Tell us the address, the job and how access works and we’ll give you a quote.