Oxfordshire · England
Stratton Audley External Mastic
Our applicators work in Stratton Audley on sealing brickwork movement joints, render, cladding and façade joints. Old material cut out, joints cleaned and sealed neatly and a one-year guarantee.
- Movement joints with cracked, split or missing sealant
- Hard, crazed mastic that has stopped moving
- Movement joints filled with mortar instead of sealant
Honest limits
We’ll always be straight with you, so here’s what new sealant will not do:
- Subsidence or other structural problems
- Cutting new joints into brickwork, which is building work rather than sealant work
- Cracks in the bricks or render themselves, away from the joints
If in doubt, ring 0345 464 0079 or drop us an email and we’ll say what we think.
Surfaces we seal
- Brickwork movement joints
- Render & cladding joints
- Copings & trims
- Joints between brick and frames
- Concrete & block
- Façade panels
External mastic in Stratton Audley
A movement joint is a deliberate break that lets a wall expand and contract. The sealant in it has to stretch and squeeze for years, so once it splits or hardens, the joint stops working and water gets in. We work on copings & trims, façade panels and brickwork movement joints, and common reasons people get in touch are weeds or debris growing in open joints and panel joints letting water in.
Somewhere as small as Stratton Audley, homes and farm buildings often face open ground, so walls and rooflines take the full force of wind and rain. Gutter joints and wall joints there need a sealant that can flex and stay put.
Our work is backed for twelve months, and the guarantee is the same wherever you are.
- Location
- Stratton Audley (OX27)
- Region
- Oxfordshire
- Cover
- 12 months on all our work
- Price
- Quoted before any work starts
- Call
- 0345 464 0079
- Last updated
- 26 October 2026
External mastic in Stratton Audley: local notes
Rainfall in the South East is lower than in much of the UK, though outdoor sealant still has to go onto a dry joint, so the forecast decides the day.
Homes close to Church of St Mary and St Edburga include some older properties, and an extension built onto an older house moves differently, and the joint between them takes the strain. If you look after a building such as Cooper School, movement joints, cladding joints and gutters on larger buildings need the same care as a house’s.
Stratton Audley is about 3 miles north-east of Bicester, in Oxfordshire. Homes, rented property, offices and hotels in Stratton Audley can book us for external mastic. The work is guaranteed for a year. Our area takes in 443 places across Oxfordshire, large and small. Oxford is on our list too, around 13 miles away.
We cover every part of OX27 for external mastic and the streets around it. We cover properties on Cherry Street, Stoke Lyne Road and Cavendish Place. We also cover Caversfield (1 mile south-west), Fringford (2 miles north), Hethe (2 miles north-west), Bure Park (2 miles south-west) and Bicester (3 miles south-west). Larger places within reach include Oxford (13 miles south), Banbury (13 miles north-west), Thame (14 miles south-east), Kidlington (11 miles south-west), Headington Quarry (12 miles south) and St John Street area (14 miles south-west).
Around Stratton Audley
Stratton Audley’s nearest station is Bicester North station, about 2.4 miles south-west. A little further out are Ardley Castle (4.3 miles west) and Bicester Village (3.2 miles south-west). Not far away are Graven Hill and Calvert Jubilee.
Stratton Audley questions
Can you do external mastic in Stratton Audley?
Yes. We work across London and the South East, and Stratton Audley is part of that. You can phone 0345 464 0079 or email us and tell us what needs doing.
Do you cover smaller places like Stratton Audley?
Yes. Stratton Audley is within the area we cover, which takes in towns, villages and rural addresses. We work across London and the South East. Let us know about access, parking and anything unusual about getting there when you book.
How often do external joints need resealing?
There’s no fixed answer: sunny, exposed elevations and busy joints wear faster. Check them each year and reseal when they split or harden. Every job carries our one-year guarantee.
What sealant do you use?
We choose the sealant for the joint, not the other way round. Where it moves, gets wet or faces the weather makes a difference, and we’ll tell you what we’re using.
What is backing rod for?
That’s backing rod, a closed-cell foam. It stops the sealant going in too deep and bonding to three sides, which would stop it stretching.
Where is Mr Mastic based?
Our base is Crawley. We work across South East England, London and Scotland.
Can I add another job to the visit?
Yes, we can. More than one area can go on one quote.
How long does external mastic take?
As a guide, most jobs take anything from a few hours to several days, depending on the building. Larger jobs naturally take longer, and we’ll say how long yours will take.
Places near Stratton Audley
More services for Stratton Audley
Landlord and commercial work in Stratton Audley
Businesses can book us for washrooms, kitchens, offices and more. On commercial sites, working times can be discussed when we quote.
In hotels, rooms out of use cost money, so we plan the work room by room around your bookings where we can. Hotel work is part of what we do, alongside homes and businesses.
Aftercare tips
Simple care keeps the joints in good condition. Our advice:
- Look over the joints every year, ideally after winter
- Keep movement joints as flexible joints, not mortar
- Ask before painting over external sealant
- Show decorators and builders where the movement joints are
Avoid pressure-washing straight into the joints. High-pressure water can lift the edges.
Water getting behind cladding or render can go unnoticed for a long time. By the time there’s a damp patch, the damage can be well established.
Do you need external mastic in Stratton Audley?
Poor preparation causes many early failures: dusty or wet faces, no primer where one was needed, or old sealant left in. The sealant never bonds properly.
Most people get in touch after spotting something like this:
- Brick movement joints where the sealant has split
- Rigid filler in a joint that should flex
- Sealant pulling away from one side of the joint
- Gaps where render, brick and frames meet
Letting a property close to Bicester North station? Then failed wall and movement joints let damp in, so they’re worth checking between tenancies.
What your quote should include
- Who does the work, and how experienced they are
- What guarantee comes with the work
- How long to leave it before use
- How the colour is chosen
How the job changes by surface
Render joints
Rendered walls have joints at beads, openings and changes of material. They’re resealed in a sealant that suits the render.
Copings and trims
A failed coping joint lets water into the top of the wall. Resealing them is a small job that protects a lot.
How we quote for external mastic
For a quick quote, just ask. What matters most is:
- The amount of work
- The old material and how stubborn it is
- When we can work, for business premises
- How many areas need sealing
There are no prices on our website, because the cost depends so much on the job itself. Call for a quick quote and we will talk you through it.
Helping us quote
The more you tell us, the more accurate the quote. When you get in contact, it helps to mention:
- Whether it has been sealed before
- Photos by email, if that is easy
- Roughly how big the job is
- The problem you’ve noticed
Every job is quoted individually. Just call 0345 464 0079 or email us with the details, and photos are welcome.
The process
On the day, there’s very little for you to do. Point us to the joints and we’ll get on with it. The job generally takes a few hours to a few days, depending on the length of joint and the access, including the tidy-up. Somewhere like Stratton Audley needs a little journey planning: let us know about lanes, gates and parking. Everything for the job comes with us, so a second trip is avoided where possible.
- First, the joints are inspected and the access agreed.
- Every bit of old sealant and any mortar or debris is cut out.
- Joint faces are cleaned back and primed if the sealant needs it.
- We fit closed-cell backing rod to control the depth.
- We apply the sealant, tool it and check the whole run.
Getting ready for the visit
- For business premises, tell us about site rules or sign-in
- Tell us about any water getting in
- Keep pets and children clear of the area while we work
Ask for a quote
We don’t publish a price list. Instead, your job gets its own clear quote. To get started, ring 0345 464 0079 or email us.