Buckinghamshire · England
External & façade joints in Aston Clinton, Buckinghamshire
External mastic for Aston Clinton and the surrounding area: careful preparation, the right product and tidy work. Ask us for a quick quote.
- Joints where the bead has come unstuck
- Rain getting behind render or cladding at a joint
- Failed seals between different materials
External mastic in Aston Clinton: local notes
Historic houses like Cholesbury Manor House (about 4.5 miles south-east) are a reminder that the area around Aston Clinton has older buildings as well as new. 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, though outdoor sealant still has to go onto a dry joint, so the forecast decides the day.
Letting a property close to Stoke Mandeville station? Then split movement joints are easy to miss on a rental until damp shows inside. In the older streets around St Michael and All Angels Church, the joints between older walls, newer extensions and the roofline need a sealant that can move.
Aston Clinton is about 4 miles east of Aylesbury, in Buckinghamshire. From the centre of Aston Clinton to the outskirts, external mastic is available for homes and businesses alike. 263 places in Buckinghamshire are on our list, from the larger towns to small villages. We also work in Oxford, around 22 miles away.
Every address in HP22 is within our area for external mastic. External mastic is available to properties on London Road, Putnams Drive and Archive Close. We also cover the places around Aston Clinton: Buckland (1 mile east), Puttenham (2 miles north), Astrope (2 miles north-east), Long Marston (2 miles north-east) and Bedgrove (2 miles west). Within a short drive, we also cover Aylesbury (4 miles west), High Wycombe (12 miles south), Chesham (8 miles south-east), Amersham (10 miles south-east), Beaconsfield (14 miles south) and Chalfont St Peter (15 miles south-east).
Near you in Aston Clinton
We work in homes and buildings around John Colet School and The Rothschild Arms. For rail, the closest station is Stoke Mandeville station, roughly 2.7 miles west. A little further out are Trenchard Museum (1.7 miles south) and Stoke Mandeville Hospital (3.2 miles west). The countryside around Aston Clinton includes Haddington Hill and Dancersend.
External mastic for homes and businesses in Aston Clinton
Joints between dissimilar materials, like brick against render or concrete against a steel frame, see movement from both sides. A flexible sealant bridges the two. We work on brickwork movement joints, façade panels and joints between brick and frames, and the jobs we see most are joints where the bead has come unstuck and failed seals between different materials.
Homes around Aston Clinton range from older cottages to newer houses, with walls and rooflines of every type. Older gutters and trims need their joints resealed; newer brick and render need their movement joints kept sound.
We guarantee the work for a year. If there’s a problem with our work within the year, let us know and we’ll sort it.
- Place
- Aston Clinton (HP22)
- Wider area
- Buckinghamshire
- Guarantee
- A year, on every job
- Quotes
- A clear price before we start
- Telephone
- 0345 464 0079
- Page updated
- 26 October 2026
What else we do in Aston Clinton
Surface by surface
Render joints
Water behind render can lead to blown patches. Resealing the joints early keeps water out and helps it last.
Copings and trims
Coping joints that leak let water straight down into the wall. Resealing them is a small job that protects a lot.
The process
On the day, there’s very little for you to do. Show us the job and we will take it from there. The work itself takes a few hours for a handful of joints, longer for a whole elevation from start to finish. In a smaller place like Aston Clinton, parking is seldom the issue; lanes, gates and long drives are worth mentioning. For outside work, side access and the height of the joints help us plan.
- We start by walking round the building and agreeing the joints and the access.
- 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.
- We fit closed-cell backing rod to control the depth.
- We apply the sealant, tool it and check the whole run.
Preparing for the visit
- For indoor joints, keep the area dry beforehand if you can
- Tell us about any water getting in
- Let us know about parking restrictions
Getting a quote
Need a quote? Please phone 0345 464 0079 or send us an email with a few details. We will explain what we’d do and give you a clear price before any work starts.
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DIY versus a professional finish
The biggest DIY mistake is sealing over old sealant. Silicone doesn’t stick to old silicone, so it lifts and traps water and mould underneath. All the old material has to come out first.
What a professional job adds is preparation and the right product. We take joints back to clean, dry surfaces, and the sealant is chosen for how the joint moves and where it is.
How to look after the new joints
So the new joints stay in good condition:
- Show decorators and builders where the movement joints are
- Do not let climbing plants root in the sealant
- Wash walls gently around the sealant
- Walk round the building once a year and look at the joints
Keep pressure washers away from the sealant. High-pressure water can lift the edges and let water in behind.
An open movement joint lets rain into the wall every time it pours. That can lead to damp patches, staining and frost damage.
What happens if it’s left?
Running new sealant over the old bead rarely lasts. The new layer can’t bond properly to old, weathered material, so the old joint is cut out fully first. In a smaller place like Aston Clinton, wherever a wall is exposed, a failed outside joint is a real source of damp. Inside, a split seal lets water into floors and panels just as it would anywhere.
Commercial jobs are quoted on the same basis as homes: how much there is to do, how we reach it and what it needs, plus any working-time requirements on site. Call for a quick quote and we will go through it with you.
Why book with us
- Rated 4.9 stars on Google
- Experience in homes, commercial sites and hotels
- A sealant colour to suit the surroundings
- Old sealant always removed completely
Read what affects the cost or our reviews.
Landlords, agents and businesses in Aston Clinton
From a single let to a portfolio, you get the same standard of work: the old material taken out, careful preparation and a 12-month guarantee.
Hotels need rooms back in use, so we plan the work room by room. We’ve worked in hotels as well as homes and businesses.
Common problems we fix in Aston Clinton
Sunlight, wet weather and frost wear exterior sealant down. In time it goes hard, crazes on the surface and stops stretching, so the next time the wall moves, it splits or pulls away.
Common reasons people contact us include:
- Rain getting behind render or cladding at a joint
- Movement joints filled with mortar instead of sealant
- Panel joints letting water in
- Sealant pulling away from one side of the joint
If you look after a building such as Aston Clinton School, larger buildings have long runs of movement joint that eventually need resealing.
Comparing quotes
- Who turns up on the day
- Whether they’re fully insured
- Is VAT in the price?
- Whether all the old sealant comes out first
Aston Clinton: your questions answered
Do you cover smaller places like Aston Clinton?
Yes, Aston Clinton is covered. Our work covers London and the South East, from towns to the smallest places. The journey is planned ahead, so it helps to know about access.
Can you do external mastic in Aston Clinton?
Yes. Our work covers London and the South East, and Aston Clinton is part of that. Just ring 0345 464 0079 or email us with a few details of the job, and we’ll give you a clear quote.
Do you have insurance?
Yes. Full insurance covers our work.
How long does external mastic take?
It depends on the size of the job, but most jobs take a few hours to a few days, depending on the length of joint and the access. We’ll give you a better idea when we quote.
Do you seal joints where cladding meets other materials?
Yes. Joints between dissimilar materials are a big part of external work. We use a flexible sealant suited to both surfaces, primed where needed.
How long does external mastic last?
That varies with the weather the wall faces, how much it moves and the sealant used. Sealant is a maintenance item, so check the joints once a year and renew it when it starts to fail.
I rent my home. Can I book you?
We can work for tenants, landlords or agents. Get your landlord’s agreement first.
Why is there a gap in my brick wall?
A movement joint is a planned break in the wall that absorbs expansion and shrinkage. It’s sealed with a flexible sealant, not mortar.