Oxfordshire · England
External & façade joints in Clifton, Oxfordshire
Sealing brickwork movement joints, render, cladding and façade joints in Clifton, with a one-year guarantee on every job. Call for a quick quote.
- Joints with sealant missing in places
- Old sealant gone brittle and cracked
- Failed sealant between panels on a façade
How we handle external mastic in Clifton
Movement joints let brickwork, render and cladding expand and shrink without cracking. The sealant in it has to stretch and squeeze for years, and when it fails, the wall takes the strain and water finds a way in. We work on façade panels, joints between brick and frames and copings & trims, and common reasons people get in touch are panel joints letting water in and sealant pulling away from one side of the joint.
Older homes in small places like Clifton may be stone, brick or timber-framed, often with later extensions. Where one material meets another is where water usually gets in, and they need the right sealant at the right depth.
Whatever the size of the job, it’s backed by our one-year guarantee in Clifton and across Oxfordshire.
- Location
- Clifton (OX15)
- Region
- Oxfordshire
- Guarantee
- One year on every job
- Price
- A clear quote up front
- Call
- 0345 464 0079
- Updated
- 26 October 2026
What we do, step by step
When we get to you, we check the joints match what you told us. If we find something unexpected, we talk it through with you first. Most jobs then take a few hours for a handful of joints, longer for a whole elevation. In a small place like Clifton, access is usually the main thing to plan. For outside work, also let us know about exposed walls and any outbuildings involved.
- First, the joints are inspected and the access agreed.
- Every bit of old sealant and any mortar or debris is cut out.
- The faces are brushed clean and primed where the product requires it.
- Backing rod sized to the joint goes in to set the depth.
- The exterior sealant is applied, tooled and checked along its length.
Before we arrive
- Mention any leaks or damp you’ve noticed
- Keep pets and children clear of the area while we work
- Try not to wet indoor joints just before the visit
Get a quote
Want a quote for external mastic? Please ring 0345 464 0079 or send us an email and tell us about the job. We will explain what we’d do and send you a clear quote before work begins.
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Landlords, agents and businesses in Clifton
Letting agents often deal with us directly. Tell us the address, the job and how access works and we will quote.
Water getting past a failed joint can damage the building, which matters even more when someone else lives there. Keeping joints in good order is simple maintenance.
Clifton questions
Is Clifton within the area you cover?
Yes, smaller places are covered as well as towns. We work across London and the South East. Just mention lanes, gates or anything else about the route when you book.
Can you help a landlord with a rental near Kings Sutton station?
Yes, landlords and agents are among the people we work for, and several properties can go on one quote. Just ring 0345 464 0079 or drop us an email with the address and what needs doing, and we’ll give you a clear price.
Does someone need to be in?
Access is agreed with you when the job is booked. Indoors, that normally means someone at home.
Is there a guarantee?
Yes. There’s a 12-month guarantee on every job, wherever you are.
Are you ARBOMaster approved?
Yes. Mr Mastic is an ARBOMaster approved applicator and we’re fully insured too.
Can you work on commercial sites?
Yes, regularly. Larger jobs can be planned room by room or area by area.
Is there any odour?
Some sealants have a smell while they cure, but it fades. Ventilation helps.
Can you seal joints between two different materials?
Yes. The old joint is removed, both surfaces cleaned and primed where needed, and a flexible sealant applied. We pick a colour that works with both materials.
DIY versus a professional finish
Sealing over old silicone is the commonest DIY error. New silicone won’t bond to old, so it lifts and traps water and mould underneath. All the old material has to come out first.
Some sealant jobs are within reach of a careful DIYer, such as a straightforward joint indoors. The common mistakes are sealing over old sealant, sealing a damp joint and using far too much.
Leave it or put it right?
It often makes sense to reseal all the failing joints on an elevation together. Joints of the same age tend to fail together. Where a wall is exposed, as many are in small places like Clifton, wind-driven rain gets into any failed joint, and damp in older walls is slow to dry out.
Doing several joints on one visit normally makes better use of the time than several visits, so tell us about everything that needs sealing. You will get one clear quote for the whole job.
Why choose Mr Mastic in Clifton
- A choice of colours where the product allows
- Anti-fungal sanitary silicone in wet areas
- Arbo and Everbuild products
- 180+ five-star Google reviews
Read what affects the cost and what customers say.
How to look after the new joints
Good habits help new joints last longer. Our tips:
- Get split or bare joints resealed while the damage is small
- Check external joints each spring
- Ask before painting over external sealant
- Keep movement joints as flexible joints, not mortar
Follow the cure time we give you before the joint is knocked or disturbed. Most exterior sealants skin fast but take longer to cure right through.
A joint that has stopped moving pushes the movement elsewhere, normally as cracking in the brickwork or render nearby. Catch it early and you reduce the risk.
Honest limits
We will not take on work that won’t last, so these are the limits:
- Failed render or damaged cladding panels
- Damp from another source, such as a leaking gutter or a bridged damp-proof course
- Subsidence or other structural problems
Not sure which it is? You can call 0345 464 0079 or send us an email and we’ll tell you honestly before you book.
What we seal
- Concrete & block
- Copings & trims
- Render & cladding joints
- Joints between brick and frames
- Brickwork movement joints
- Façade panels
Outside joints around Clifton
Rainfall in the South East is lower than in much 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 Kings Sutton station? Then outside joints that have cracked can let damp into a rental, so check them between lets. Around Clifton, as everywhere, external mastic is only as good as the preparation behind it.
Clifton is about 6 miles south-east of Banbury, in Oxfordshire. Wherever you are in the OX15 postcode area, we can carry out external mastic at your property. Our area takes in 443 places across Oxfordshire. Oxford is on our list too, around 16 miles away.
Here we cover the OX15 postcode area for external mastic. You will find streets such as County View, Tithe Lane and Clifton Road, all of which we cover. We also cover the places around Clifton: Somerton (2 miles south), Souldern (2 miles east), Fritwell (3 miles south-east) and Upper Heyford (4 miles south). Within a short drive, we also cover Banbury (6 miles north-west), Bicester (8 miles south-east), Kidlington (11 miles south), Bure Park (8 miles south-east), Chipping Norton (11 miles west) and Headington (15 miles south).
Landmarks near Clifton
Typical jobs here are in homes near Duke Of Cumberlands Head Public House and the streets around them. Clifton’s nearest station is Kings Sutton station, roughly 2.7 miles north. Nearby you’ll also find Horton General Hospital (5.3 miles north) and Deddington Castle (1.1 miles west).
How we quote for external mastic
We quote each job individually. These are the things that affect it:
- How easy the joints are to reach
- The product the joint needs
- The number and length of the joints
- Any mould that needs treating
There are no prices on our website, because each job is priced on what it involves. For a quick quote, please ring 0345 464 0079 or send us an email.
Asking for a quote
When you contact us, these details help:
- What the problem is, such as mould, gaps, leaks or cracking
- Access, such as stairs, a lift or height
- The rough size of the job
- Where the job is, and your postcode
The more we know about the job, the more useful the quote. Let us know the location, the problem and roughly how many joints.