Oxfordshire · England
External & façade joints in Sibford Gower, Oxfordshire
External mastic in Sibford Gower from a team with over 20 years’ experience. 180+ five-star Google reviews and a 4.9 rating.
- Brick movement joints where the sealant has split
- Failed sealant between panels on a façade
- Weathered mastic that no longer stretches
DIY versus a professional finish
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.
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.
External mastic in Sibford Gower
Where two different materials meet, such as brick and render or blockwork and metal, they move at different rates. A flexible exterior sealant takes up that movement where mortar or filler would crack. We work on concrete & block, joints between brick and frames and render & cladding joints, and the jobs we see most are movement joints with cracked, split or missing sealant and rigid filler in a joint that should flex.
Outside joints can only be sealed when they’re dry, so work in Sibford Gower is booked around the forecast. Tell us about access to all sides of the building, including outbuildings and garages.
Each job carries a 12-month guarantee, whatever its size.
- Location
- Sibford Gower (OX15)
- Region
- Oxfordshire
- Cover
- A year, on every job
- Quote
- A clear quote up front
- Phone
- 0345 464 0079
- Last updated
- 26 October 2026
Why deal with it now?
Sealing over the top of old mastic doesn’t hold for long. The new layer cannot bond properly to old, weathered material, so we always take the old sealant out. Where a wall is exposed, as many are in small places like Sibford Gower, wind-driven rain gets into any failed joint, and damp in older walls is slow to dry out.
Leaving a failed joint normally makes the job bigger, not smaller, because water and mould keep working on it. If you are not sure whether it needs doing, phone 0345 464 0079 or email us and we’ll give you an honest view and a quote.
Why book with us
- Anti-fungal silicone where joints get wet
- Over 20 years’ experience
- Trusted Arbo and Everbuild sealants
- Approved under the ARBOMaster scheme
What external mastic looks like in Sibford Gower
Historic houses like Broughton Castle (about 4 miles east) are a reminder that the area around Sibford Gower has older buildings as well as new. In older buildings, older brick and stone need a sealant that suits them, at the right joint depth. 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.
If you look after a building such as Sibford Gower Endowed Primary School, movement joints, cladding joints and gutters on larger buildings need the same care as a house’s. Homes close to Church of Holy Trinity include some older properties, and old and new materials meet at the roofline and walls, which is where sealant earns its keep.
Sibford Gower is about 6 miles west of Banbury, in Oxfordshire. From the centre of Sibford Gower to the outskirts, external mastic is available for homes and businesses alike. Sibford Gower is one of 443 towns and villages in Oxfordshire we cover. We also work in Oxford, about 23 miles from Sibford Gower.
We work across OX15 for external mastic and the streets around it. External mastic is available to properties on Main Street, Colony Road and Pound Lane. If you are just outside Sibford Gower, we cover Burdrop (1 mile east), Sibford Ferris (1 mile south-east), Swalcliffe (2 miles east), Epwell (2 miles north) and Shutford (3 miles north-east). We also work in nearby towns such as Banbury (6 miles east), Chipping Norton (7 miles south), Neithrop (5 miles east), Grimsbury (7 miles east), Ruscote (5 miles east) and Woodstock (14 miles south-east).
Around Sibford Gower
In Sibford Gower, that means homes and buildings near Sibford School and the streets around them. Well-known places in the area include Broughton Castle (4 miles east). Open spaces near Sibford Gower include Castle Hill and Woodford Bottom and Lamb's Pool.
What affects the cost of external mastic
We quote each job individually. This is what makes a difference:
- Any mould that needs treating
- The type of sealant required
- The number and length of the joints
- How easy the joints are to reach
Instead of a standard rate, we look at what your job involves: how many joints, what’s in them now and how we reach them. The price is agreed before we begin.
Helping us quote
Photos help, but a description is a good start. Try to tell us:
- Whether it has been sealed before
- The problem you’ve noticed
- The type of property
- The address or postcode of the job
The more we know about the job, the more useful the quote. Tell us where the job is, what’s wrong and how much there is, and email pictures if that’s easy.
Landlords, agents and businesses in Sibford Gower
If you manage several properties in or around Sibford Gower, several properties can go on one quote. Send us the addresses and the work at each, and photos by email help.
We regularly work with letting and managing agents. Tell us the address, the job and how access works and we will quote.
Questions from Sibford Gower
What guarantee comes with external mastic in Sibford Gower?
All our work, in Sibford Gower and everywhere else, comes with a 12-month guarantee. We are also fully insured and ARBOMaster approved.
Is Sibford Gower in your area for external mastic?
Yes. We work across London and the South East, and Sibford Gower is part of that. Just ring 0345 464 0079 or send us an email with a few details of the job.
How often do external joints need resealing?
That depends on the wall, the weather and the movement. Look for splits, hardening or edges coming away, and reseal at that point.
Can you seal over the old sealant?
No, it won’t last. It may look fine at first, but the new bead soon lifts. The old sealant has to come out completely.
Can I add another job to the visit?
Yes, and it often makes sense. Combining jobs makes good use of the visit.
What sealant do you use?
Quality sealants from brands including Arbo and Everbuild, chosen to suit the joint. We will tell you what we are using and why.
Do you work at height?
Each building is different. Tell us the height, the number of joints and what’s below them.
Do you work for letting agents?
Yes. Domestic, commercial and hotel work are all part of what we do, and we’re fully insured.
How the visit works
We work through the job in order: protection first, then preparation, sealing and a tidy-up. For most jobs that takes anything from a few hours to several days, depending on the building and we leave things clean and tidy. Somewhere like Sibford Gower needs a little journey planning: 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.
- We inspect the joints and agree which need resealing and how they’ll be reached.
- Old sealant and any debris are cut and raked out.
- Both sides are cleaned back to sound material and primed if needed.
- Backing rod goes in next, setting the depth and keeping the sealant off the back of the joint.
- A flexible exterior sealant is applied and tooled in a colour to suit the wall.
Getting ready for the visit
- On commercial sites, let us know about site rules
- Clear the area around the work
- Mention if the joints have been sealed before
Getting a quote
Every job is quoted individually. Just phone 0345 464 0079 or drop us an email with the details, and photos are welcome.
Advice
Places near Sibford Gower
Also in Sibford Gower
Different surfaces, different methods
Cladding and façade panels
If the façade has a specified sealant, that’s what we use or an approved alternative. Tell us what the building has when you get in touch.
Render joints
Render is weaker at the surface than brick, so a sealant that stretches easily protects the edges. We prime where the product needs it.
Honest limits
Sealant is not the answer to every problem, and we’ll tell you before we start. It will not solve:
- Failed render or damaged cladding panels
- Movement that is more than a sealant joint can take
- Cracking across the wall rather than at a joint
Not sure which it is? You can call 0345 464 0079 or drop us an email and we’ll tell you honestly before you book.
Surfaces we seal
- Joints between brick and frames
- Brickwork movement joints
- Copings & trims
- Façade panels
- Concrete & block
- Render & cladding joints