Kent · England
External & façade joints in Hockenden, Kent
Sealing brickwork movement joints, render, cladding and façade joints for homes and businesses in Hockenden and across Kent. ARBOMaster approved applicators, fully insured, with a 12-month guarantee.
- Leaking joints around cladding and façade panels
- Water getting into walls through failed joints
- Cracked joints where brick meets render or frames
External mastic for homes and businesses in Hockenden
Where two different materials meet, such as brick and render or blockwork and metal, they move at different rates. A flexible sealant bridges the two. We work on copings & trims, façade panels and brickwork movement joints, and the jobs we see most are weathered mastic that no longer stretches and rain getting behind render or cladding at a joint.
Older homes in small places like Hockenden may be stone, brick or timber-framed, often with later extensions. The joints where those materials meet are the weak points.
Your job is guaranteed for a year, as with all our work.
- Where
- Hockenden (BR8)
- Wider area
- Kent
- Cover
- A year, on every job
- Price
- Quoted before any work starts
- Telephone
- 0345 464 0079
- Last updated
- 26 October 2026
Walls and rooflines in Hockenden
With historic houses such as Hall Place and Gardens (about 3.2 miles north) nearby, there’s older building stock in the area around Hockenden as well as newer homes. Where a home is older, 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.
In the older streets around St Mary the Virgin, older walls, gutters and the joints where extensions meet them need a flexible sealant. Letting a property close to Swanley station? Then outside joints that have cracked can let damp into a rental, so check them between lets.
Hockenden is about 2 miles north-east of Orpington, in Kent. Our applicators cover external mastic for householders, landlords and businesses in Hockenden, as part of our work across Kent. Our Kent coverage runs to 922 places, Hockenden among them. London is on our list too, about 13 miles from Hockenden.
Here we cover the BR8 postcode area for external mastic. We also cover the places around Hockenden: Upper Ruxley (1 mile north-west), Stonehill Green (1 mile north-east), Ruxley (1 mile north-west), Puddledock (2 miles north-east) and Hextable (2 miles north-east). Within a short drive, we also cover Dartford (4 miles north-east), Sevenoaks (8 miles south), Gravesend (10 miles east), Tonbridge (15 miles south), Northfleet (9 miles east) and Kings Hill (14 miles south-east).
What’s near Hockenden
Typical jobs here are in homes near Orchards Academy and Foots Cray Meadows. The nearest railway station is Swanley station, roughly 1 mile south-east of the centre. A little further out are London Borough of Bromley Museum (2.6 miles south-west) and Eynsford Castle (3.4 miles south-east). Not far away are The Warren and Summer Hill.
Do you need external mastic in Hockenden?
Buildings move more than people expect. Clay bricks expand slightly over their life, concrete and block shrink, and everything moves with temperature and wet. All of that ends up in the joint sealant.
These are the problems we’re asked about most:
- Hard, crazed mastic that has stopped moving
- Failed seals between different materials
- Joints pointed up with cement by mistake
- Water getting into walls through failed joints
Managing a site like Horizon Primary Academy? Then movement joints, cladding joints and gutters on larger buildings need the same care as a house’s.
Comparing quotes
- Is VAT in the price?
- Is the old sealant removed completely?
- What guarantee comes with the work
- Whether the sealant suits the joint
Keeping the joints in good condition
Looking after new joints is easy:
- Avoid pressure-washing directly into sealant joints
- Walk round the building once a year and look at the joints
- Point out the joints to other trades
- Deal with leaking gutters that soak the joints below
Make sure anyone working on the wall later knows where the movement joints are. They must stay as flexible joints, never rendered or pointed over.
If you can see gaps, plants or bare sections in a joint, have it checked. Earlier resealing means a smaller job and a better result.
The process
All our tools and materials come with us in the van. After a quick look at the joints together, we protect the area and start. It normally takes anything from a few hours to several days, depending on the building. Somewhere as small as Hockenden, access is often the only tricky part. 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.
- Joint faces are cleaned back and primed if the sealant needs it.
- We fit closed-cell backing rod to control the depth.
- We apply the sealant, tool it and check the whole run.
How to prepare
- Mention any parking rules near the property
- Mention any tricky access
- Let us know about earlier repairs to the joints
Get a quote
Need a quote? Please phone 0345 464 0079 or email us and tell us about the job. We’ll explain what we’d do and send you a clear quote before work begins.
Related advice
Should I try it myself first?
The difference is mostly in the preparation and the product. We take joints back to clean, dry surfaces, and the sealant is matched to the joint and its conditions, then guaranteed for a year.
Too much sealant is as bad as too little. A heavy bead looks messy and copes badly with movement, and the joint depth matters as much as the finish.
When something else is needed
Honest advice matters more to us than a booking, so here’s what new sealant will not do:
- Loose or hollow render, which needs re-rendering
- Adding movement joints to masonry that has none
- Structural movement, which needs a surveyor or engineer
If you’re not sure, just phone 0345 464 0079 or email us and we will give you a straight answer before you book.
What we seal
- Render & cladding joints
- Façade panels
- Joints between brick and frames
- Concrete & block
- Copings & trims
- Brickwork movement joints
Also near Hockenden
Other services in Hockenden
What affects the cost of external mastic
Every job gets its own quote. This is what makes a difference:
- How many rooms, windows or areas are involved
- Mould in or behind the old joints
- Which sealant suits the joint
- When we can work, for business premises
A failed joint rarely gets cheaper to fix by waiting, because water and mould keep working on it. If you are unsure, ring 0345 464 0079 or send us an email for an honest opinion and a quote.
What to tell us for a quote
What to tell us when you ask for a quote:
- Any access issues, like height or stairs
- Roughly how big the job is
- Whether it’s a home or a business
- What’s wrong with the joints now
Getting a quote is simple: let us know the job and the location. Photos by email help us understand the job, and we will come back to you with a quote.
Questions from Hockenden
Do you cover smaller places like Hockenden?
Yes, Hockenden is covered. We work across 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 Hockenden?
Yes. We work across London and the South East, and Hockenden is part of that. Just ring 0345 464 0079 or send us an email with a few details of the job.
Where are you based?
We are a Crawley-based firm, with over 20 years’ experience. We work across South East England, London and Scotland.
Is it messy?
Very little: the area around the joints is protected first, and we clear up the old sealant and our materials before we leave.
How long does external mastic last?
There’s no fixed answer: sunny, exposed elevations and busy joints wear faster. Check them each year and reseal when they split or harden. Every job carries our 12-month guarantee.
What do you need from me for a quote?
Only a few details: the address or postcode, what’s wrong and any access issues. Then ring 0345 464 0079 or send us an email.
Do you do commercial work?
Yes, regularly. We can plan bigger jobs in stages to suit the site.
Do you use backing rod?
We fit closed-cell backing rod wherever the joint depth needs controlling. It sets the sealant depth and prevents three-sided bonding, so the joint can move.
Different surfaces, different methods
Concrete and blockwork
Concrete and block walls shrink as they dry and move with temperature. We reseal their joints with backing rod and a flexible product.
Copings and trims
Coping joints that leak let water straight down into the wall. Sealing them early saves the wall below.