Kent · England
External & façade joints in Hawley, Kent
Movement joints in Hawley need attention? We cut out the old, prepare the joints and apply the right sealant, with a one-year guarantee.
- Rigid filler in a joint that should flex
- Damp patches traced to an open external joint
- Brick movement joints where the sealant has split
About our external mastic in Hawley
For buildings in Hawley, we reseal external joints of all kinds, from brick movement joints to cladding panels. The preparation is the same whatever the wall: clean joint faces and the right depth. If you’re dealing with old sealant gone brittle and cracked and leaking joints around cladding and façade panels, we can help, whatever the surface.
Around Hawley, 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.
You get a one-year guarantee, the same in Hawley as everywhere else we work.
- Location
- Hawley (DA2)
- Region
- Kent
- Cover
- 12 months on all our work
- Quotes
- Quoted before any work starts
- Phone
- 0345 464 0079
- Last updated
- 26 October 2026
The process
On the day, we look over the joints with you first, so you know exactly what we are doing. We protect the surfaces around the joints before work begins. Most jobs take anything from a few hours to several days, depending on the building. In a small place like Hawley, access is generally the main thing to plan. For outside work, also let us know about exposed walls and any outbuildings involved.
- First we look over the joints with you, agree which to renew and talk through access.
- We cut out the failed sealant and rake out any dirt or growth.
- We clean both faces of the joint and prime them where the product calls for it.
- We push in closed-cell backing rod so the sealant is the right depth and bonds to the sides only.
- A flexible exterior sealant is applied and tooled in a colour to suit the wall.
How to prepare
- Let us know if you’ve seen damp or leaks
- Let us know about parking restrictions
- On commercial sites, let us know about site rules
Get a quote
For a quote, call 0345 464 0079 or email us and tell us where the job is and what the problem looks like. You will have a clear quote before we start.
Related advice
For landlords and businesses
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.
We also work for property managers and facilities teams. Several sites can go on one quote, and we’re fully insured for the work.
Common questions in Hawley
Can you do external mastic in Hawley?
Yes, Hawley is within the area we cover. Our work covers London and the South East. You can ring 0345 464 0079 or email us and let us know what needs doing.
Is Hawley within the area you cover?
Yes, we do. We work across London and the South East, from towns to the smallest places. Longer journeys are simply planned in advance.
What’s an expansion joint in brickwork?
Walls move with heat, cold and moisture, and planned joints take up that movement. The gap is sealed with a flexible sealant over backing rod.
Do you remove the old sealant?
Yes, every time. New sealant will not bond properly to old, so the joint is cleaned back first.
Can a movement joint be filled with mortar?
No. Rigid materials can’t move with the wall. Where a joint has been mortared, it can often be raked out and sealed properly.
Is there any odour?
That depends on the sealant. Some products have a noticeable smell, others very little, and any smell fades as they cure.
Do you work for hotels and businesses?
Yes. We can plan bigger jobs in stages.
Do you hold any approvals?
Yes. We are approved under the ARBOMaster scheme, which is run for the Arbo sealant brand.
Leave it or put it right?
Mortar or ordinary filler might look like a quick way to close an open joint, but it locks the joint solid. The movement then cracks the brickwork or render nearby. A flexible sealant over backing rod is what the joint needs. Around Hawley, older homes often have timber in their floors and frames, where water from a failed joint can cause rot if it’s left.
Some things make a job bigger or smaller: the old material and how easily it comes out, any mould to treat, and whether we need extra access for height. We take all of that into account in your quote.
Why Hawley customers choose us
- Anti-fungal silicone where joints get wet
- Full insurance on every job
- Tidy, careful work
- A sealant colour to suit the surroundings
Read what affects the cost or our reviews.
What external mastic looks like in Hawley
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. With historic houses such as Hall Place and Gardens (about 3.3 miles north-west) nearby, there’s older building stock in the area around Hawley as well as newer homes. In older buildings, older brick and stone need a sealant that suits them, at the right joint depth.
Letting a property close to Farningham Road station? Then split movement joints are easy to miss on a rental until damp shows inside. For site and facilities teams at buildings such as Sutton-At-Hone Church of England Primary School, its movement joints, gutters and trims need looking after like any other building’s. For an older house near a landmark such as Church of St John the Baptist, old and new materials meet at the roofline and walls, which is where sealant earns its keep.
Hawley is about 1 mile south of Dartford, in Kent. Across the DA2 area, our applicators can take on external mastic. 922 places in Kent are on our list, from the larger towns to small villages. There’s also a page for London, roughly 15 miles from Hawley.
Here we cover the DA2 postcode area for external mastic. You will find streets such as Ash Road, May Road and Shirehall Road. Neighbouring places we cover for external mastic include Clement Street (1 mile south-west), Sutton at Hone (1 mile south-east), Darenth (1 mile east), Dartford (1 mile north) and St Margarets (2 miles south-east). Larger places within reach include Sevenoaks (10 miles south), Gravesend (7 miles east), Northfleet (5 miles east), Swanley (3 miles south-west), Kings Hill (13 miles south-east) and Swanscombe (3 miles north-east).
Around Hawley
Around Hawley, our work takes us to homes and buildings near Darenth Country Park, Leigh Academy and The Four Lymes pub and the streets around them. For rail, the closest station is Farningham Road station, roughly 1.5 miles south of the centre. A little further out are Bluewater (2.4 miles north-east) and Darenth Park Hospital (1.7 miles north-east). The countryside around Hawley includes Wansunt Pit and Sawyers Lake.
How the job changes by surface
Render joints
Cracks along render joints let water in behind the coat. A sound joint keeps the render dry behind and helps it last.
Joints between dissimilar materials
Different materials may need different primers. Both surfaces are cleaned and primed as the product requires.
Places near Hawley
Also in Hawley
Aftercare tips
No joint lasts for ever, but care makes a real difference. Our tips:
- Fix overflowing gutters above sealed joints
- Never let anyone fill a movement joint with mortar
- Point out the joints to other trades
- Avoid pressure-washing directly into sealant joints
Only paint over the joint if we’ve confirmed the sealant can take paint. Many exterior sealants are not designed to be painted and spoil the finish.
Once a joint can’t move, the wall finds another way, often as cracks near the joint. Resealing it early helps prevent that.
When it isn’t the sealant
We’ll always be straight with you, so here’s what sealant cannot fix:
- Cutting new joints into brickwork, which is building work rather than sealant work
- Failed render or damaged cladding panels
- Damp from another source, such as a leaking gutter or a bridged damp-proof course
If you’re not sure, just call 0345 464 0079 or drop us an email and we will give you a straight answer before booking.
Where we work in Hawley
- Concrete & block
- Joints between brick and frames
- Façade panels
- Brickwork movement joints
- Render & cladding joints
- Copings & trims
Can I do it myself?
Not every job suits DIY: work at height, external movement joints, fire-rated sealant and large areas call for the right materials, safe access and experience.
If you are set on DIY, put the effort into 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.