Kent · England
External Mastic in Bockhanger
External mastic in Bockhanger from a team with over 20 years’ experience. Rated 4.9 on Google from 180+ five-star reviews.
- Weathered mastic that no longer stretches
- Moss and dirt in joints with no sealant left
- Joints where the bead has come unstuck
DIY versus a professional finish
What a professional job adds is preparation and the right product. We take joints back to clean, dry surfaces, and the sealant is matched to the joint and its conditions.
The biggest DIY mistake is sealing over old sealant. Silicone does not stick to old silicone, so it peels away and traps moisture behind it. All the old material has to come out first.
About our external mastic in Bockhanger
Movement joints let brickwork, render and cladding expand and shrink without cracking. 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. We work on copings & trims, joints between brick and frames and concrete & block, and common reasons people get in touch are moss and dirt in joints with no sealant left and joints where the bead has come unstuck.
In and around Bockhanger, older properties sit alongside newer ones, each with its own outside joints. Older homes need their gutter and trim joints kept tight, newer ones their movement joints.
We stand behind the work with a 12-month guarantee.
- Place
- Bockhanger (TN24, TN25)
- Wider area
- Kent
- Cover
- A year, on every job
- Quotes
- A clear quote up front
- Telephone
- 0345 464 0079
- Last updated
- 26 October 2026
What affects the cost of external mastic
Some jobs are bigger than they look, and some smaller. The main factors:
- Any mould that needs treating
- The type of sealant required
- Whether the work is at height
- The amount of work
There are no prices on our website, because each job is priced on what it involves. Call for a quick quote and we’ll talk you through it.
What to tell us for a quote
There’s no need for technical detail. Just tell us:
- If it’s domestic, commercial or a hotel
- Any previous sealing or DIY work
- Where the job is, and your postcode
- The problem you’ve noticed
Getting a quote is simple: let us know what needs doing and where. Photos by email help us understand the job, and we’ll come back to you with a quote.
When to call us in Bockhanger
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.
Look out for these signs:
- Weeds or debris growing in open joints
- Sealant that has lost its bond to the brick or render
- Joints with sealant missing in places
- Joints pointed up with cement by mistake
In the older streets around Church of St Mary, old and new materials meet at the roofline and walls, which is where sealant earns its keep.
What your quote should include
- Which colour the sealant will be
- What happens if they find a problem under the old sealant
- What the cure time is
- What insurance they hold
How the visit works
Before we leave, we go over the finished joints with you. The visit itself normally takes anything from a few hours to several days, depending on the building, depending on the amount of work. In a smaller place like Bockhanger, parking is seldom the issue; lanes, gates and long drives are worth mentioning. If the job is outside, tell us about side access and how high the joints are.
- We start by walking round the building and agreeing the joints and the access.
- We cut out the old mastic and rake out anything in the joint.
- The faces are brushed clean and primed where the product requires it.
- We fit closed-cell backing rod to control the depth.
- The exterior sealant is applied, tooled and checked along its length.
Preparing for the visit
- Tell us about any water getting in
- Mention any tricky access
- Keep pets and children clear of the area while we work
Getting a quote
We don’t publish a price list, because every job is different. Instead, your job gets its own clear quote. To get started, ring 0345 464 0079 or drop us an email.
Related advice
Places near Bockhanger
More services for Bockhanger
Outside joints around Bockhanger
With historic houses such as Godinton House (about 2.1 miles west) nearby, there’s older building stock in the area around Bockhanger as well as newer homes. In older buildings, older brick and stone need a sealant that suits them, at the right joint depth. Rainfall in the South East is lower than in much of the UK, but outside sealant still needs a dry, clean surface, so outdoor work is planned around the forecast.
Letting a property close to Ashford International station? Then failed wall and movement joints let damp in, so they’re worth checking between tenancies. Managing a site like Phoenix Community Primary School? Then movement joints, cladding joints and gutters on larger buildings need the same care as a house’s.
Bockhanger is about 2 miles north of Ashford, in Kent. We provide external mastic to homes and businesses in Bockhanger. Across Kent, we cover 922 places, Bockhanger among them. There’s also a page for Chelmsford, roughly 43 miles from Bockhanger.
Work in TN24 and TN25 is quoted and booked the same way as anywhere else. We cover properties on Park Road, York Road and Tudor Road and the roads around them. Other places close to Bockhanger include Kennington (1 mile north-east), Potters Corner (1 mile north-west), Godinton (2 miles south-west), Ashford (2 miles south) and Boughton Lees (2 miles north-east). Larger places within reach include Canterbury (12 miles north-east), Sittingbourne (14 miles north-west), Folkestone (14 miles south-east), Whitstable (15 miles north-east), Faversham (10 miles north) and Hythe (11 miles south-east).
Local landmarks in Bockhanger
Locally, jobs take us to homes and businesses close to Towers School and Sixth Form Centre, Towers School and Sixth Form Centre and Ashford Warren and Hoads Wood, among other places. The closest station to Bockhanger is Ashford International station, about 1.5 miles south. A little further out are County Square (1.2 miles south) and William Harvey Hospital (2.2 miles south-east). Open spaces near Bockhanger include Hatch Park.
Landlords, agents and businesses in Bockhanger
We regularly work with letting and managing agents. Send the address, what’s needed and the access arrangements and we will give you a quote.
Housing providers, facilities teams and property managers book us too in Bockhanger and across Kent. We can quote a run of properties together, and we’re fully insured.
Surface by surface
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.
Cladding and façade panels
Panels heat up and cool down quickly, so the joint sealant has to cope with frequent movement. We choose the product to suit.
Questions from Bockhanger
Is Bockhanger in your area for external mastic?
Yes. We work across London and the South East, and Bockhanger is part of that. Just ring 0345 464 0079 or email us with a few details of the job, and we will give you a clear price.
Is Bockhanger within the area you cover?
Yes, Bockhanger 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.
Where is Mr Mastic based?
We are a Crawley-based firm, with over 20 years’ experience. Our area covers South East England, London and Scotland.
Is it messy?
Not at all. The area is protected while we work and cleaned up afterwards.
How long does external mastic 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.
What do you need from me for a quote?
Tell us what needs doing and where, plus photos if you have them. If we need more, we’ll ask.
What colours does the sealant come in?
The aim is a neat, even joint in a colour that suits the wall. Colour is agreed with you before we begin, matched as closely as the range allows.
Will there be a smell?
It depends on the product. Some smell for a while, some hardly at all, and any smell fades as they cure.
Why act early in Bockhanger
The longer a joint stays open, the more water the wall takes in. In cold weather, frost can damage wet brick and render around the joint, so the problem grows beyond the joint itself. Homes in smaller places like Bockhanger can face more weather, and failed outside joints let damp into walls. Indoors, a failed seal lets water into floors and panels as it would anywhere.
Homes and businesses are quoted the same way: how much there is to do, how we reach it and what it needs. Ask us for a quote and we’ll go through it with you.
Why us?
- White, clear, grey or another colour, product permitting
- Sanitary silicone with an anti-fungal additive in wet areas
- Any old sealant cut out fully, not covered over
- 180+ five-star Google reviews
Take a look at what affects the cost and what customers say.