Buckinghamshire · England
External Mastic in Aston Abbotts
Our applicators work in Aston Abbotts on sealing brickwork movement joints, render, cladding and façade joints. Old material cut out, joints cleaned and sealed neatly.
- Sealant pulling away from one side of the joint
- Movement joints filled with mortar instead of sealant
- Failed sealant between panels on a façade
About our external mastic in Aston Abbotts
Joints in render and cladding are easy to overlook until a damp patch appears. We look over the joints, agree the ones to renew and reseal with a flexible, weatherproof product in a matching colour. We work on render & cladding joints, façade panels and copings & trims, and people most often call us about weathered mastic that no longer stretches and failed seals between different materials.
External sealant needs dry, clean surfaces, so work around Aston Abbotts is planned for dry weather. Tell us about access to all sides of the building, including outbuildings and garages.
The work is covered for a year after we finish. If there’s a problem with it, please phone 0345 464 0079 or send us an email.
- Where
- Aston Abbotts (HP22)
- Wider area
- Buckinghamshire
- Cover
- 12 months on all our work
- Price
- A clear quote up front
- Call
- 0345 464 0079
- Last updated
- 26 October 2026
The process
When we arrive, we start by going over the job with you, so there are no surprises. We protect the surfaces around the joints before we start. Most jobs take a few hours to a few days, depending on the length of joint and the access. For a village or hamlet like Aston Abbotts, the journey is planned in advance: tell us about narrow lanes, gates, long drives and where we can park. 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.
- We take out the old sealant until the faces are sound.
- Closed-cell backing rod is pushed in so the sealant bonds to two sides only.
- Primer is applied wherever the sealant needs it.
- A low-modulus exterior sealant is gunned in and tooled to a neat finish.
How to prepare
- Plan for the work area to be out of bounds to pets and children
- Clear items away from the joints we are working on
- Mention if the joints have been sealed before
Get a quote
A good description makes for an accurate quote. Tell us where the job is, what’s wrong and how much there is.
Advice
Work for landlords, hotels and businesses
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.
Water getting past a failed joint can damage the building, which is a bigger problem in a rented property. Keeping joints in good order is simple maintenance that we can handle for you.
Walls and rooflines in Aston Abbotts
With historic houses such as Ascott House (about 3.1 miles north-east) nearby, there’s older building stock in the area around Aston Abbotts as well as newer homes. In older buildings, older walls and rooflines need a sealant that moves with them and suits the material. 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.
For landlords with property near Aylesbury station, split movement joints are easy to miss on a rental until damp shows inside. Homes close to Church of St James include some older properties, and an extension built onto an older house moves differently, and the joint between them takes the strain.
Aston Abbotts is about 4 miles north-east of Aylesbury, in Buckinghamshire. For external mastic in and around Aston Abbotts, it’s easy to get a quote: please phone 0345 464 0079 or email us. We’re based in Crawley and cover Buckinghamshire. Across Buckinghamshire, we cover 263 places, Aston Abbotts among them. Oxford is on our list too, around 21 miles away.
We work across the HP22 postcode area for external mastic. Local streets include The Green, Ross Road and Chapmans Lea, all of which we cover. We also cover Rowsham (1 mile south), Wingrave (1 mile south-east), Bierton (3 miles south) and Burcott (3 miles south). Within a short drive, we also cover Aylesbury (4 miles south-west), Chesham (13 miles south-east), Buckingham (13 miles north-west), Amersham (15 miles south-east), Elmhurst (4 miles south-west) and Southcourt (5 miles south-west).
Around Aston Abbotts
We work in homes and buildings around The Cottesloe School. The nearest railway station is Aylesbury station, roughly 4.5 miles south-west. Well-known places in the area include Bolbec Castle (3 miles west) and Tindal Centre (3.7 miles south-west).
More services for Aston Abbotts
Why deal with it now?
Resealing a run of joints in one go is usually better than patching one at a time. Joints of the same age tend to fail together, and access only has to be arranged once. Older cottages and farmhouses around Aston Abbotts can have timber floors and frames, where water from a failed joint can cause rot if it’s left.
A few things move the cost up or down: how much old sealant there is and how stubborn it is, any mould to treat, and whether the work is at height. Your quote takes all of that into account.
Why book with us
- A choice of colours where the product allows
- An ARBOMaster approved applicator
- More than 20 years in sealant work
- Any old sealant cut out fully, not covered over
Take a look at our cost guide and what customers say.
Different surfaces, different methods
Brickwork movement joints
Brick walls have vertical movement joints to absorb expansion. They’re resealed over backing rod with a low-modulus sealant.
Render joints
Cracks along render joints let water in behind the coat. A sound joint keeps the render dry behind and helps it last.
DIY sealant or a professional job?
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.
Overfilling a joint is a classic DIY mistake. A thick, smeared bead looks untidy and doesn’t move well, and the joint depth matters as much as the finish.
What affects the quote in Aston Abbotts
Every job gets its own quote. These are the things that affect it:
- Mould in or behind the old joints
- The size of the job
- How many rooms, windows or areas are involved
- The old material and how stubborn it is
What you pay reflects the work, not a rough estimate. That’s why we ask a few questions first and agree the price before starting.
What to tell us for a quote
Photos help, but a description is a good start. Please mention:
- What the problem is, such as mould, gaps, leaks or cracking
- A few photos by email, if you can
- Access, such as stairs, a lift or height
- If someone has resealed it before
Quotes start with a quick conversation. Tell us what’s wrong, where it is and how much there is. Whenever you are ready, call 0345 464 0079 or drop us an email.
What we are called out for in Aston Abbotts
Weeds, moss and debris in a joint are a sign the sealant has gone. Dirt and roots then trap moisture in the joint and make things worse.
Signs it’s time to call us include:
- Cracked joints where brick meets render or frames
- Hard, crazed mastic that has stopped moving
- Rain getting behind render or cladding at a joint
- Leaking joints around cladding and façade panels
Managing a site like Wingrave Church of England Combined School? Then movement joints, cladding joints and gutters on larger buildings need the same care as a house’s.
Questions to ask before booking
- Whether they’re fully insured
- What happens if they find a problem under the old sealant
- What the cure time is
- How the surfaces are prepared before sealing
Common questions in Aston Abbotts
I let a flat near Aylesbury station. Can you help?
Yes. We work for landlords and letting agents as well as homeowners, and several properties can go on one quote. You can ring 0345 464 0079 or send us an email with the details for a clear quote.
Is Aston Abbotts in your area for external mastic?
Yes. We work across London and the South East, and Aston Abbotts is part of that. Just ring 0345 464 0079 or send us an email with a few details of the job, and we’ll send you a clear quote.
Can you work on commercial sites?
Yes. We’ve worked for hotels, offices and other businesses, and we are fully insured.
What is a movement joint?
A vertical gap in a long brick wall is normally a movement joint. It lets the bricks expand without cracking.
What does external mastic cost?
The cost depends on the size of the job, access and how much old sealant has to come out. Ask us for a quote and we’ll talk you through it.
How long does external mastic last?
That depends on the wall, the weather and the movement. Signs to watch for are cracking, hardening and gaps at the edges, and reseal at that point.
Should I try DIY first?
For a simple, easy-to-reach joint, a careful DIYer can do a reasonable job. Most DIY failures come from sealing over old material, wet joints or too much sealant.
How long will you be here?
A typical job takes anything from a few hours to several days, depending on the building, including preparation and clearing up. We will confirm how long when we quote.