Oxfordshire · England
Bloxham External Mastic
We cover Bloxham for sealing brickwork movement joints, render, cladding and façade joints. Old material cut out, joints cleaned and sealed neatly and every job guaranteed for a year.
- Weeds or debris growing in open joints
- Damp patches traced to an open external joint
- Gaps where render, brick and frames meet
How we handle external mastic in Bloxham
For buildings in Bloxham, we reseal external joints of all kinds, from brick movement joints to cladding panels. Every joint gets the same careful preparation: clean, sound faces and a controlled depth. Typical jobs include brick movement joints where the sealant has split and gaps where render, brick and frames meet, across joints between brick and frames, concrete & block and render & cladding joints.
In a smaller place like Bloxham, some homes face open ground, so exposed walls and rooflines take more wind-driven rain. That’s where gutter joints and wall joints tend to fail first.
We stand behind the work with a one-year guarantee, so you are not left on your own once the job is done.
- Where
- Bloxham (OX15)
- Wider area
- Oxfordshire
- Guarantee
- A year, on every job
- Price
- Quoted before any work starts
- Phone
- 0345 464 0079
- Updated
- 26 October 2026
How we quote for external mastic
Call for a quick quote. What matters most is:
- How many rooms, windows or areas are involved
- Working hours on commercial sites
- The product the joint needs
- The old material and how stubborn it is
Combining jobs into one visit is generally more efficient than separate visits, so tell us about everything that needs sealing. We’ll send you a clear quote for the lot.
What to tell us for a quote
To help us quote quickly, please include:
- Any access issues, like height or stairs
- Whether it’s a home or a business
- A few photos by email, if you can
- If someone has resealed it before
It all starts with a short chat. Tell us what’s wrong, where it is and how much there is, and we’ll explain how we’d tackle it. Whenever you’re ready, call 0345 464 0079 or drop us an email.
Looking after it afterwards
How long the joints last depends on use and care. We suggest:
- Wash walls gently around the sealant
- Fix overflowing gutters above sealed joints
- Leave the joints unpainted unless we have said otherwise
- Tell anyone working on the walls about the movement joints
Do not let soil, plants or ivy build up against the new joints. Damp material against the sealant shortens its life.
Act while the splits are small. Then it’s a straightforward cut-out and reseal before water has had years to get in.
What happens on the day
All our tools and materials come with us in the van. After a quick look at the joints together, the area is protected and the work begins. Most jobs take anything from a few hours to several days, depending on the building. Parking around Bloxham is generally easier than in a town centre, but mention any lanes, gates or long drives. If the job is outside, tell us about side access and how high the joints are.
- First we look over the joints with you, agree which to renew and talk through access.
- We cut out the failed sealant and rake out any dirt or growth.
- Both sides are cleaned back to sound material and primed if needed.
- Closed-cell backing rod is fitted to set the depth and stop three-sided bonding.
- The new sealant, chosen to suit the brick or render, is applied and tooled to a neat finish.
Getting ready for the visit
- Mention any leaks or damp you’ve noticed
- Let us know about stairs, lifts or work at height
- Mention any parking rules near the property
Getting a quote
The more we know about the job, the more useful the quote. Let us know the location, the problem and roughly how many joints, and email photos if that is easy.
Read more
External mastic in Bloxham: local notes
Compared with the north and west, the South East gets less rain, though outdoor sealant still has to go onto a dry joint, so the forecast decides the day. Historic houses like Broughton Castle (about 1.7 miles north-west) are a reminder that the area around Bloxham 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.
Schools such as Bloxham Church of England Primary School are buildings too, and larger buildings have long runs of movement joint that eventually need resealing. If you let a flat or house near Banbury station, failed wall and movement joints let damp in, so they’re worth checking between tenancies. If you live in an older home near Church of St Mary, old and new materials meet at the roofline and walls, which is where sealant earns its keep.
Bloxham is about 3 miles south of Banbury, in Oxfordshire. Across the OX15 area, our applicators can take on external mastic. Across Oxfordshire, we cover 443 places, Bloxham among them. You can also see our page for Oxford, roughly 19 miles from Bloxham.
All of OX15 is covered for external mastic. If you need external mastic at a property on High Street, Merrivale's Lane and Unicorn Street or a nearby road, our applicators can take on the job. Other places close to Bloxham include Milton (1 mile east), Broughton (2 miles north), North Newington (3 miles north) and Bodicote (3 miles north-east). We also work in nearby towns such as Banbury (3 miles north), Bicester (12 miles south-east), Kidlington (14 miles south), Bure Park (12 miles south-east), Chipping Norton (9 miles south-west) and Neithrop (3 miles north).
Landmarks near Bloxham
Typical jobs here are in homes near The Warriner School and Hawk & Partridge pub, among other places. Bloxham’s nearest station is Banbury station, about 3.5 miles north-east. Nearby you’ll also find Bloxham Village Museum (less than half a mile south-west) and Horton General Hospital (2.9 miles north-east). Not far away are Crouch Hill and Woodford Bottom and Lamb's Pool.
Honest limits
We will not take on work that won’t last, so here’s what sealant cannot put right:
- Cracking across the wall rather than at a joint
- Subsidence or other structural problems
- Render that’s blown, hollow or coming away
Not sure which it is? You can phone 0345 464 0079 or send us an email and we will tell you honestly.
Surfaces we seal
- Concrete & block
- Joints between brick and frames
- Render & cladding joints
- Copings & trims
- Façade panels
- Brickwork movement joints
What happens if it’s left?
Pointing a movement joint with mortar might seem a neat fix, but it locks the joint solid. The movement then cracks the brickwork or render nearby. A flexible sealant over backing rod is what the joint needs. In a smaller place like Bloxham, wherever a wall is exposed, a failed outside joint is a real source of damp. Indoors, a failed seal lets water into floors and panels as it would anywhere.
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.
Why book with us
- A sealant colour to suit the surroundings
- Arbo and Everbuild products
- Fully insured
- Homes, businesses and hotels
DIY sealant or a professional job?
Some jobs are best left to a professional: work at height, external movement joints, fire-rated sealant and large areas call for the right materials, safe access and experience.
If you do try it yourself, take your time over the preparation: take out all the old sealant, make sure the joint is clean and dry, and give it the full cure time. If it fails, we can still redo it.
Landlord and commercial work in Bloxham
A neglected joint can let water reach the structure, which is a bigger problem in a rented property. Resealing at the right time is simple maintenance.
From a single let to a portfolio, you get the same standard of work: old sealant fully removed, joints prepared properly and a one-year guarantee.
Places near Bloxham
Also in Bloxham
Bloxham: your questions answered
I let a flat near Banbury station. Can you help?
Yes. We work for landlords and agents as well as homeowners. Just ring 0345 464 0079 or email us with the address and what needs doing, and we will give you a clear price.
Do you cover smaller places like Bloxham?
Yes, Bloxham is covered. We work across London and the South East, and smaller places are part of that. Longer journeys are simply planned in advance.
What colours does the sealant come in?
We aim for a joint that suits the wall rather than one that jumps out. We’ll talk through colour options before any work starts.
Do I need to be at home?
It depends on the job. For work indoors, someone needs to let us in.
Is it OK to seal over old sealant?
No, and we never do. It can look neat for a few weeks, but the new layer lifts away from the old one. The old sealant has to come out completely.
How do I get a quote for external mastic in Bloxham?
Every job is different, so each one gets its own quote. For a quick quote, phone 0345 464 0079 or send us an email with a short description of the job.
How long does external mastic take?
That depends on how much there is to do, but most jobs take anything from a few hours to several days, depending on the building. We’ll give you a better idea when we quote.
Do you have insurance?
Yes. We are fully insured, and we have been doing sealant work for more than 20 years.