Buckinghamshire · England
External & façade joints in Bierton, Buckinghamshire
External mastic across Bierton and nearby, with old sealant always removed completely and a one-year guarantee.
- Cracked joints where brick meets render or frames
- Failed sealant between panels on a façade
- Joints pointed up with cement by mistake
What happens on the day
Before we leave, we go over the finished joints with you and tell you how long to leave it. The work normally takes a few hours for a handful of joints, longer for a whole elevation, depending on the size of the job. In a small place like Bierton, access is generally the main thing to plan. If the job is outside, mention outbuildings, exposed walls and how to reach them.
- 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.
How to prepare
- Mention any sign-in or site rules at work premises
- Let us know about stairs, lifts or work at height
- Clear items away from the joints we’re working on
Ask for a quote
There’s no standard price list, because every job is different. Instead, your job gets its own clear quote. To get started, ring 0345 464 0079 or send us an email.
Read more
How we handle external mastic in Bierton
A movement joint is only as good as its depth. Backing rod controls how deep the sealant goes and keeps it off the back of the joint, so it bonds to the two sides only and can stretch. If you have sealant that has lost its bond to the brick or render and joints with sealant missing in places, we can put it right, on joints between brick and frames, brickwork movement joints and copings & trims alike.
Around Bierton, older buildings can be stone, brick or timber-framed, many with extensions added later. Where one material meets another is where water normally gets in, and they need the right sealant at the right depth.
All of our work is guaranteed for twelve months, and the guarantee is the same wherever you are.
- Place
- Bierton (HP22)
- Region
- Buckinghamshire
- Guarantee
- One year on every job
- Quote
- A clear quote up front
- Phone
- 0345 464 0079
- Last updated
- 26 October 2026
Other services in Bierton
Bierton questions
Can you help a landlord with a rental near Aylesbury station?
Yes. We work for landlords and agents as well as householders, and several properties can be quoted together. Just ring 0345 464 0079 or send us an email with the address and what needs doing, and we will give you a clear quote.
Can you do external mastic in Bierton?
Yes, Bierton is within the area we cover. We work across London and the South East. Just ring 0345 464 0079 or email us with a few details of the job, and we will give you a clear quote.
Can I do it myself?
It depends on the job. Work at height, movement joints, fire-rated gaps and large areas are best left to a professional, while a short indoor joint may be within reach.
Are you an approved applicator?
Yes. We are approved under the ARBOMaster scheme.
Can you work on commercial sites?
Yes. Larger jobs can be planned room by room or area by area.
How long should I leave it?
That depends on the sealant used, so please follow the time we give you when we finish.
Do you guarantee your work?
Yes: twelve months. If there’s a problem with our work in that time, tell us and we’ll put it right.
Will it make a mess?
Very little: the area around the joints is protected first, and we clear up the old sealant and our materials before we leave.
Landlords, agents and businesses in Bierton
A neglected joint can let water reach the structure, which is a bigger problem in a rented property. Keeping joints in good order is simple maintenance that we can handle for you.
Whether it’s one flat or a portfolio, the work is the same standard: the old material taken out, careful preparation and a 12-month guarantee.
What affects the cost of external mastic
Every job gets its own quote. These are the things that affect it:
- The amount of work
- When we can work, for business premises
- The old material and how stubborn it is
- The number of rooms or windows
What it costs depends on the amount of work, how hard the old material is to remove and how easy the joints are to reach. We give a clear quote before any work starts, so you know where you stand.
What to tell us for a quote
Photos by email are helpful but not essential. Please mention:
- A few pictures by email, if you can
- How we’d reach the joints
- Where the job is, and your postcode
- Whether it has been sealed before
Quotes start with a quick conversation. Tell us what’s wrong, where it is and how much there is, and we’ll talk you through what we’d do. When it suits you, ring 0345 464 0079 or email us.
Why deal with it now?
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. Older cottages and farmhouses around Bierton can have timber floors and frames, and water through a failed joint can rot timber if it’s left.
Leaving a failed joint normally makes the job bigger, not smaller, as water and mould keep getting in. If you are not sure whether it needs doing, ring 0345 464 0079 or send us an email and we will give you an honest view and a quote.
What you get with us
- Anti-fungal sanitary silicone in wet areas
- 20+ years of sealant experience
- An ARBOMaster approved applicator
- Trusted Arbo and Everbuild sealants
Read what affects the cost and what customers say.
When to call us in Bierton
A lot of failed joints come down to preparation: joint faces that were dusty or damp, unprimed where they needed it, or still carrying old sealant. The new sealant then lets go long before it should.
Common reasons people contact us are:
- Moss and dirt in joints with no sealant left
- Leaking joints around cladding and façade panels
- Movement joints with cracked, split or missing sealant
- Rain getting behind render or cladding at a joint
If you let a flat or house near Aylesbury station, split movement joints are easy to miss on a rental until damp shows inside.
What your quote should include
- When the joint can take water or movement
- Whether you can choose the colour
- How long the guarantee is
- How the surfaces are prepared before sealing
DIY sealant or a professional job?
Some sealant jobs are within reach of a careful DIYer, such as a straightforward joint indoors. Where it goes wrong is sealing over the old bead, working on a wet joint or overloading the gap.
A DIY attempt doesn’t rule out a professional job. We remove it and do the joint properly, so tell us about it when you ask for a quote.
Surface by surface
Copings and trims
Coping and trim joints face rain and sun head on. We reseal them with an exterior sealant suited to the material.
Concrete and blockwork
Blockwork and concrete shrink over time and move with the seasons. We reseal their joints with backing rod and a flexible product.
Walls and rooflines in Bierton
London and the South East are among the drier parts of the UK, yet outdoor joints still have to be sealed dry, so jobs are booked with the weather in mind.
Homes close to Church of St James include some older properties, and the joints between older walls, newer extensions and the roofline need a sealant that can move. Schools such as Bierton Church of England Combined School are buildings too, and larger buildings have long runs of movement joint that eventually need resealing.
Bierton is about 2 miles north-east of Aylesbury, in Buckinghamshire. Wherever you are in the HP22 postcode area, our applicators can take on external mastic. Our Buckinghamshire coverage runs to 263 places, and Bierton is one of them. For nearby work, see our Oxford page.
Postcode districts we cover here for external mastic: HP22. You will find streets such as Aylesbury Road, Kings Meadow and William Hill Drive, and we cover them all. Neighbouring places we cover for external mastic include Burcott (1 mile south-east), Broughton Crossing (1 mile south), Broughton (1 mile south-east), Turnfurlong (2 miles south) and Rowsham (2 miles north-east). Further out, we also cover High Wycombe (14 miles south), Chesham (11 miles south-east), Buckingham (14 miles north-west), Amersham (13 miles south-east), Princes Risborough (8 miles south) and Haydon Hill (3 miles west).
What’s near Bierton
Locally, jobs take us to homes and businesses close to Stocklake Park Community School, Aylesbury Grammar School and Red Lion Public House, among other places. The nearest railway station is Aylesbury station, about 1.8 miles south-west of the centre. A little further out are Tindal Centre (1 mile south-west) and Bolbec Castle (4.1 miles north-west).