Oxfordshire · England
External Mastic in Lower Brailes
External mastic in Lower Brailes from a team with over 20 years’ experience. Rated 4.9 on Google from 180+ five-star reviews.
- Hard, crazed mastic that has stopped moving
- Damp patches traced to an open external joint
- Gaps where render, brick and frames meet
About our external mastic in Lower Brailes
Many failed façade joints only get noticed once there’s a stain or a damp patch inside. We inspect them, agree which need doing and reseal with a weatherproof, flexible sealant. If you have movement joints filled with mortar instead of sealant and joints where the bead has come unstuck, we can help, on copings & trims, render & cladding joints and joints between brick and frames alike.
Around Lower Brailes, older buildings can be stone, brick or timber-framed, many with extensions added later. Where one material meets another is where water normally gets in, and they need the right sealant at the right depth.
The work is covered for a year after we finish. If anything isn’t right with it, phone 0345 464 0079 or drop us an email.
- Location
- Lower Brailes (OX15)
- Region
- Oxfordshire
- Guarantee
- 12 months on all our work
- Quote
- A clear quote up front
- Telephone
- 0345 464 0079
- Last updated
- 26 October 2026
What affects the cost of external mastic
We quote each job individually. This is what makes a difference:
- Mould in or behind the old joints
- Any working-time requirements on site
- The type of sealant required
- How many areas need sealing
Rather than a set price list, we price the job in front of us: the amount of work, the old material and the access. The price is agreed before we begin.
Asking for a quote
The more you tell us, the more accurate the quote. When you get in contact, it helps to mention:
- Roughly how big the job is
- Whether it’s a home or a business
- What’s wrong with the joints now
- Photos by email, if that is easy
For external mastic in Lower Brailes, phone 0345 464 0079 or drop us an email. Tell us what the problem is and where, and you’ll get a clear quote before we start.
Nearby places to Lower Brailes
Also in Lower Brailes
Lower Brailes buildings and the weather
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.
Schools such as Brailes CofE Primary School are buildings too, and larger buildings have long runs of movement joint that eventually need resealing. For an older house near a landmark such as Church of St George, the joints between older walls, newer extensions and the roofline need a sealant that can move.
Lower Brailes is about 8 miles west of Banbury, in Oxfordshire. If you need external mastic in Lower Brailes, please phone 0345 464 0079 or send us an email for a quick quote. We cover Oxfordshire from our Crawley base. We cover 443 towns and villages across Oxfordshire, from the larger towns to small villages. We also work in Oxford, about 25 miles from Lower Brailes.
Here we cover the OX15 postcode area for external mastic. If you need external mastic at a property on High Street, School Lane and Orchard Close or anywhere close by, our applicators can take on the job. We also cover Upper Brailes (1 mile north-west) and Sutton-under-Brailes (1 mile south-west). We also work in nearby towns such as Banbury (8 miles east), Chipping Norton (8 miles south), Neithrop (8 miles east), Grimsbury (10 miles east), Ruscote (8 miles east) and Bloxham (8 miles east).
Landmarks near Lower Brailes
Locally, jobs take us to homes and businesses close to George Hotel And Attached Carriage Entrance And Barn and the streets around them. A little further out are Ellen Badger Hospital (3.5 miles west). The countryside around Lower Brailes includes Castle Hill and Woodford Bottom and Lamb's Pool.
Should I try it myself first?
A careful DIYer can reseal a simple joint, such as a straightforward joint indoors. Where it goes wrong is sealing over the old bead, working on a wet joint or overloading the gap.
Sealing over old silicone is the commonest DIY error. New silicone will not bond to old, so it lifts and traps water and mould underneath. Everything old must be removed first.
For landlords and businesses
If you manage several properties in or around Lower Brailes, jobs at different addresses can be quoted together. Send us the addresses and the work at each.
In hotels, rooms out of use cost money, so the work can be planned room by room around your bookings where we can. We have worked in hotels as well as homes and businesses.
Common questions in Lower Brailes
Do you cover Lower Brailes for external mastic?
Yes. Our work covers London and the South East, and Lower Brailes is part of that. You can phone 0345 464 0079 or email us and tell us what needs doing.
Is external mastic in Lower Brailes guaranteed?
Every job comes with our one-year guarantee, wherever it is. We are fully insured, and an ARBOMaster approved applicator.
Is it OK to fill a movement joint with cement?
No. Rigid materials can’t move with the wall and the joint fails. Where a joint has been mortared, it can often be raked out and sealed properly.
What should I tell you?
Where the job is, what the problem is and roughly how big it is. If you can, email a few pictures.
How long does external mastic take?
Typically it takes a few hours to a few days, depending on the length of joint and the access. Larger jobs naturally take longer.
Can you seal joints between two different materials?
Yes. Materials like render, brick, metal and uPVC all move differently, so the joint between them must be flexible. The sealant is matched to both sides.
Do you do commercial work?
Yes. Hotels, offices and other businesses use us, and we’re fully insured.
Are you fully insured?
Yes. We’re fully insured, with over 20 years’ experience in sealant work.
What happens on the day
At the end, we look at the finished work together. The work normally takes a few hours to a few days, depending on the length of joint and the access, depending on the size of the job. Somewhere like Lower Brailes 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.
- Each joint is checked and the colour of the new sealant agreed.
- We take out the old sealant until the faces are sound.
- Backing rod goes in so the sealant can stretch between the two faces.
- We prime the faces where required.
- We gun in low-modulus sealant and tool it neatly.
Preparing for the visit
- For indoor joints, keep the area dry beforehand if you can
- Let us know if you’ve seen damp or leaks
- Clear items away from the joints we are working on
Ask for a quote
We quote each job on its own, so start by telling us what you need. Just call 0345 464 0079 or drop us an email with the details and send pictures if you have them.
Read more
How the job changes by surface
Render joints
The face of render can be soft, so a sealant that stretches easily protects the edges. Priming is done where the sealant calls for it.
Joints between dissimilar materials
Different materials may need different primers. We prepare both faces so the sealant bonds properly.
What we cannot put right
We’d rather tell you now than do work that will not last, so here’s what sealant can’t put right:
- Cracked brickwork or render that needs a builder or plasterer
- Walls that need new movement joints cut into them
- Damp that is not coming from the joint
Not sure which it is? You can ring 0345 464 0079 or email us and we will tell you honestly.
Where we work in Lower Brailes
- Concrete & block
- Façade panels
- Render & cladding joints
- Copings & trims
- Brickwork movement joints
- Joints between brick and frames
Keeping the joints in good condition
Joint life depends on how it’s used and looked after. We suggest:
- Do not let climbing plants root in the sealant
- Check external joints each spring
- Leave the joints unpainted unless we’ve said otherwise
- Show decorators and builders where the movement joints are
Avoid pressure-washing straight into the joints. A strong jet can damage the edges of the bead.
Once a joint cannot move, the wall finds another way, often as cracks near the joint. Resealing it early helps prevent that.