Oxfordshire · England
External Mastic in Ardley
We cover Ardley for sealing brickwork movement joints, render, cladding and façade joints. Old material cut out, joints cleaned and sealed neatly and a 12-month guarantee.
- Damp patches traced to an open external joint
- Movement joints with cracked, split or missing sealant
- Hard, crazed mastic that has stopped moving
About our external mastic in Ardley
A movement joint is a deliberate break that lets a wall expand and contract. Its sealant has to flex with the building, season after season, and when it fails, the wall takes the strain and water finds a way in. Typical jobs include moss and dirt in joints with no sealant left and sealant pulling away from one side of the joint, on render & cladding joints, copings & trims and brickwork movement joints.
Around Ardley, older buildings can be stone, brick or timber-framed, many with extensions added later. The joints where those materials meet are the weak points, and they need the right sealant at the right depth.
Each job carries a 12-month guarantee.
- Location
- Ardley (OX27)
- Region
- Oxfordshire
- Guarantee
- A year, on every job
- Price
- Quoted before any work starts
- Telephone
- 0345 464 0079
- Page updated
- 26 October 2026
What we can’t put right
We will always be straight with you, so here’s what new sealant will not do:
- Damp from another source, such as a leaking gutter or a bridged damp-proof course
- Adding movement joints to masonry that has none
- Failed render or damaged cladding panels
If in doubt, phone 0345 464 0079 or email us and we’ll say what we think before you book.
Joints and surfaces we work on
- Façade panels
- Concrete & block
- Brickwork movement joints
- Render & cladding joints
- Joints between brick and frames
- Copings & trims
DIY versus a professional finish
A careful DIYer can reseal a simple joint, like a short, easy-to-reach joint indoors. Where it goes wrong is sealing over the old bead, working on a wet joint or overloading the gap.
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.
How it works
Once we’re on site, we compare the joints with what we discussed. 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. Somewhere like Ardley 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.
- We look at every joint and agree a colour to suit the wall.
- Failed sealant is removed back to clean, sound faces.
- Backing rod goes in so the sealant can stretch between the two faces.
- We prime the faces where required.
- A low-modulus exterior sealant is gunned in and tooled to a neat finish.
Preparing for the visit
- Keep children and pets away from the work area
- Mention any leaks or damp you’ve noticed
- Where the joints are inside, avoid wetting them before we arrive
Getting a quote
Quotes start with a quick conversation. Describe the problem, the location and the size of the job, and we will explain how we’d tackle it. When it suits you, phone 0345 464 0079 or email us.
Read more
Outside joints around Ardley
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.
If you live in an older home near Church of St Mary, older walls, gutters and the joints where extensions meet them need a flexible sealant.
Ardley is about 4 miles north-west of Bicester, in Oxfordshire. Wherever you are in the OX27 postcode area, we cover external mastic for homes and businesses. Our area takes in 443 places across Oxfordshire, from the larger towns to small villages. There’s also a page for Oxford, about 13 miles away.
Every address in OX27 is within our area for external mastic. You will find streets such as Church Road, Station Road and Somerton Road, all of which we cover. Close by, we work in Fewcott (1 mile north-west), Fritwell (1 mile north-west), Upper Heyford (2 miles south-west), Middleton Stoney (2 miles south) and Souldern (3 miles north-west). Further out, we also cover Oxford (13 miles south), Banbury (10 miles north-west), Bicester (4 miles south-east), Kidlington (9 miles south), Headington Quarry (13 miles south) and Bure Park (3 miles south-east).
Landmarks near Ardley
We work in homes and buildings around The Fox and Hounds pub and the streets around them. The closest station to Ardley is Bicester North station, roughly 3.8 miles south-east. Well-known places in the area include Ardley Castle (less than half a mile west) and Bicester Community Hospital (3.9 miles south-east). Not far away are Graven Hill.
Why it’s worth doing now in Ardley
A properly done movement joint is an even line in a colour that suits the wall. A hurried job with smeared edges and no backing looks worse and fails sooner so it’s worth doing right. Where a wall is exposed, as many are in small places like Ardley, wind-driven rain gets into any failed joint, and older walls, once damp, take a long time to dry.
Some things make a job bigger or smaller: how much old sealant there is and how stubborn it is, any mould to treat, and whether the work is at height. We take all of that into account in your quote.
Why choose Mr Mastic in Ardley
- Anti-fungal silicone where joints get wet
- Any old sealant cut out fully, not covered over
- Colour picked to suit the job
- 180+ five-star Google reviews
Take a look at how sealant jobs are priced and what customers say.
Common questions in Ardley
Do you work for landlords with property near Bicester North station?
Yes, landlords and agents are among the people we work for, and several properties can go on one quote. You can call 0345 464 0079 or email us with the details for a clear quote.
Will you come out to Ardley?
Yes, smaller places are covered as well as towns. Our work covers London and the South East. Let us know about access, parking and anything unusual about getting there when you book.
When is the sealant fully cured?
That depends on the sealant used, so please follow the time we give you when we finish.
What’s an expansion joint in brickwork?
It’s a deliberate gap that lets the wall expand and contract without cracking. It’s sealed with a flexible sealant, not mortar.
Is it messy?
Tidy work is part of the job. We protect what’s around the joints, and the area is left clean when we finish.
How long does the job take?
A typical job takes anything from a few hours to several days, depending on the building, including the preparation. We’ll confirm how long when we quote.
Are you ARBOMaster approved?
Yes. We are ARBOMaster approved, the scheme for applicators of Arbo sealants.
Do I need to be at home?
We need access to the joints, so we will agree that with you when we book. Indoors, that generally means someone at home.
Surface by surface
Brickwork movement joints
Vertical joints in long brick walls let the brickwork expand without cracking. We reseal them with a low-modulus sealant over backing rod in a colour to suit the brick.
Copings and trims
Joints in copings, parapets and trims are exposed to the worst of the weather. Each is resealed with a weatherproof, flexible sealant.
Nearby places to Ardley
What else we do in Ardley
What we’re called out for in Ardley
Sunlight, wet weather and frost wear exterior sealant down. In time it goes hard, crazes on the surface and stops stretching, so the joint eventually tears or comes away from one side.
These are the problems we are asked about most:
- Sealant pulling away from one side of the joint
- Joints with sealant missing in places
- Plants rooting in failed movement joints
- Gaps where render, brick and frames meet
If you let a flat or house near Bicester North station, split movement joints are easy to miss on a rental until damp shows inside.
Before booking anyone
- Who turns up on the day
- Whether VAT is included
- How long the guarantee is
- What the cure time is
Work for landlords, hotels and businesses
Landlords and letting agents in Ardley can book us as well as householders. Resealing between tenancies keeps a property looking cared for.
If you manage several properties in or around Ardley, jobs at different addresses can go on one quote. Send us the addresses and the work at each, and pictures by email help.