Oxfordshire · England
Binsey External Mastic
Sealing brickwork movement joints, render, cladding and façade joints for Binsey, backed by a one-year guarantee. Ask us for a quote.
- Water getting into walls through failed joints
- Cracked joints where brick meets render or frames
- Rigid filler in a joint that should flex
Leave it or put it right?
Done well, a resealed joint is a neat, straight line that suits the wall. A hurried job with smeared edges and no backing looks worse and fails sooner. In a small place like Binsey, homes can be exposed to wind and rain, which finds any gap, and older walls, once damp, take a long time to dry.
Every job is a little different, so we quote each one individually. Size, access and the product the joint needs all play a part.
Why Binsey clients choose us
- Colour picked to suit the job
- Approved under the ARBOMaster scheme
- Rated 4.9 stars on Google
- Sanitary silicone with an anti-fungal additive in wet areas
Take a look at what affects the cost and customer reviews.
External mastic for homes and businesses in Binsey
External mastic is a job where short cuts show quickly. New sealant over old, joints packed with mortar and beads with no backing all tend to fail early. We strip the joint back and start again. We work on copings & trims, joints between brick and frames and concrete & block, and people most often call us about damp patches traced to an open external joint and brick movement joints where the sealant has split.
Around Binsey, older buildings can be stone, brick or timber-framed, many with extensions added later. Where one material meets another is where water generally gets in.
A one-year guarantee comes with the work, just as it does everywhere we cover.
- Place
- Binsey (OX2)
- Wider area
- Oxfordshire
- Guarantee
- One year on every job
- Price
- A clear quote up front
- Phone
- 0345 464 0079
- Updated
- 26 October 2026
Questions from Binsey
Do you work for landlords with property near Oxford station?
Yes, rental work is part of what we do. You can ring 0345 464 0079 or drop us an email with the address and a few details, and we will give you a fixed price before we start.
Will you come out to Binsey?
Yes, we do. We work across London and the South East, and smaller places are part of that. Longer journeys are simply planned in advance.
Which products do you use?
It depends on the joint: anti-fungal sanitary silicone in wet areas, and other sealants where joints move or face the weather. We use products from Arbo and Everbuild.
How much does external mastic cost in Binsey?
It depends on the job, so we quote each one individually. To get one, ring 0345 464 0079 or drop us an email and let us know what needs doing and where.
Do the sealants smell?
That depends on the sealant. Some products have a noticeable smell, others very little.
How long before the joint can be used?
It depends on the product and the conditions. We tell you how long to leave it before we go.
Will you leave a mess?
Very little: the area around the joints is protected first, and we tidy up before we go.
When will the joints need doing again?
It depends on the exposure, the movement and the product. Sealant is a maintenance item, so check the joints once a year and renew it when it starts to fail.
Binsey buildings and the weather
With historic houses such as Holywell Manor (about 2.2 miles south-east) nearby, there’s older building stock in the area around Binsey as well as newer homes. Where a home is older, 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, yet outdoor joints still have to be sealed dry, so jobs are booked with the weather in mind.
Letting a property close to Oxford station? Then outside joints that have cracked can let damp into a rental, so check them between lets. If you live in an older home near Church of St Margaret, an extension built onto an older house moves differently, and the joint between them takes the strain.
Binsey is about 3 miles north-west of Oxford, in Oxfordshire. From the centre of Binsey to the outskirts, external mastic is available for homes and businesses alike. Across Oxfordshire, we cover 443 places, and Binsey is one of them.
We cover every part of the OX2 postcode area for external mastic. Close by, we work in Godstow (1 mile north), Wolvercote (1 mile north), Walton Manor (1 mile east), North Oxford (1 mile east) and Jericho (1 mile south-east). Within a short drive, we also cover Oxford (3 miles south-east), Didcot (11 miles south), Bicester (11 miles north-east), Abingdon-on-Thames (6 miles south), Witney (8 miles west) and Carterton (13 miles west).
Landmarks near Binsey
We work in homes and buildings around Oxford Academy, St Edward's School and Oxford University Parks. Other local landmarks include The Trout Inn (0.7 miles north) and St Hugh's College Main Building Including Library (1.4 miles east). The closest station to Binsey is Oxford station, about 1.6 miles south-east of the centre. Other landmarks nearby include Oxford University Press Museum (1.5 miles south-east) and Westgate Shopping Centre (2 miles south-east). Open spaces near Binsey include Harcourt Hill and Hook Meadow and The Trap Grounds.
DIY versus a professional finish
Too much sealant is as bad as too little. A heavy bead looks messy and copes badly with movement, and getting the depth right matters as much as the look.
A careful DIYer can reseal a simple joint, such as a straightforward joint indoors. The common mistakes are sealing over old sealant, sealing a damp joint and using far too much.
Aftercare tips
Simple care keeps the joints in good condition. We recommend:
- Make sure movement joints are not pointed over
- Wash walls gently around the sealant
- Walk round the building once a year and look at the joints
- Keep soil, plants and ivy away from the joints
Avoid pressure-washing straight into the joints. A strong jet can damage the edges of the bead.
Act while the splits are small. At that stage it’s a simple cut out and reseal.
What we are called out for in Binsey
A lot of failed joints come down to preparation: dusty or wet faces, no primer where one was needed, or old sealant left in. The sealant never bonds properly.
It’s worth asking for a quote if you see:
- Leaking joints around cladding and façade panels
- Sealant pulling away from one side of the joint
- Movement joints with cracked, split or missing sealant
- Water getting into walls through failed joints
Managing a site like Botley School? Then larger buildings have long runs of movement joint that eventually need resealing.
Before you book anyone
- How long the guarantee is
- Who turns up on the day
- What happens if they find a problem under the old sealant
- Whether you can choose the colour
Also near Binsey
What else we do in Binsey
When it is not the sealant
We’d rather tell you now than do work that will not last, so these are the limits:
- Structural movement, which needs a surveyor or engineer
- Adding movement joints to masonry that has none
- 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.
Joints and surfaces we work on
- Render & cladding joints
- Concrete & block
- Copings & trims
- Façade panels
- Joints between brick and frames
- Brickwork movement joints
Different surfaces, different methods
Joints between dissimilar materials
Each side of the joint may need its own preparation. Both surfaces are cleaned and primed as the product requires.
Copings and trims
Metal and stone copings both move with temperature, so a flexible sealant suits them best.
What we do, step by step
You do not need to clear the whole room or building before we come, only the area right around the joints. Everything nearby is protected, and the work takes anything from a few hours to several days, depending on the building for a typical job. Somewhere as small as Binsey, access is often the only tricky part. If the job is outside, mention outbuildings, exposed walls and how to reach them.
- 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.
- The faces are brushed clean and primed where the product requires it.
- Backing rod sized to the joint goes in to set the depth.
- We apply the sealant, tool it and check the whole run.
Preparing for the visit
- Tell us if parking is tricky
- Clear items away from the joints we are working on
- Let us know about stairs, lifts or work at height
Ask for a quote
Asking for a quote is easy: let us know what needs doing and where, and roughly how big it is. A few photos by email make the job easier to understand, and we will take it from there.