Kent · England
External & façade joints in Halfway Street, Kent
Movement joints in Halfway Street need attention? We cut out the old, prepare the joints and apply the right sealant, with a one-year guarantee.
- Joints where the bead has come unstuck
- Failed sealant between panels on a façade
- Weathered mastic that no longer stretches
Work for landlords, hotels and businesses
Water getting past a failed joint can damage the building, which matters even more when someone else lives there. Keeping joints in good order is simple maintenance.
From a single let to a portfolio, the work is the same standard: old sealant fully removed, joints prepared properly and a 12-month guarantee.
External mastic in Halfway Street
External mastic is a job where short cuts show quickly. New sealant over old, joints packed with mortar and beads with no backing all tend to fail early. We take the old material out and do it properly. If you’re dealing with leaking joints around cladding and façade panels and cracked joints where brick meets render or frames, we can put it right, on concrete & block, brickwork movement joints and joints between brick and frames alike.
Somewhere as small as Halfway Street, homes and farm buildings often face open ground, where walls and rooflines take the weather head on. Gutter joints and wall joints there need a sealant that can flex and stay put.
Every job is covered by our 12-month guarantee.

- Where
- Halfway Street (CT15)
- Region
- Kent
- Cover
- One year on every job
- Price
- A clear price before any work starts
- Phone
- 0345 464 0079
- Last updated
- 26 October 2026
Also near Halfway Street
Also in Halfway Street
How to look after the new joints
To keep the joints looking good and working properly:
- Check external joints each spring
- Keep soil, plants and ivy away from the joints
- Fix overflowing gutters above sealed joints
- Point out the joints to other trades
Only paint over the joint if we have confirmed the sealant can take paint. Many exterior sealants aren’t designed to be painted and spoil the finish.
An open movement joint lets rain into the wall every time it pours. Over time it can mean damp inside, stained render or frost-damaged brick which cost more to put right than the joint.
What affects the cost of external mastic
For a quick quote, just ask. What matters most is:
- Whether there’s mould to deal with
- How many rooms, windows or areas are involved
- Any working-time requirements on site
- How easy the joints are to reach
Commercial jobs are quoted on the same basis as homes: the amount of work, the access and the products needed, along with when we can work on site. Call for a quick quote and we’ll explain what it covers.
What we need to know
To make quoting easier, let us know:
- Whether it has been sealed before
- Where the property is
- Whether it’s a home or a business
- What the problem is, such as mould, gaps, leaks or cracking
There’s no standard price list, as no two jobs are quite the same. Instead, we give you a clear quote for your job. To arrange one, phone 0345 464 0079 or drop us an email.
What happens on the day
Our applicators work methodically: protection first, then preparation, sealing and a tidy-up. Typically it takes a few hours for a handful of joints, longer for a whole elevation, and the area is left clean. Somewhere as small as Halfway Street, 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.
- We cut out the old mastic and rake out anything in the joint.
- Joint faces are cleaned back and primed if the sealant needs it.
- We fit closed-cell backing rod to control the depth.
- The exterior sealant is applied, tooled and checked along its length.
Getting ready for the visit
- Mention any sign-in or site rules at work premises
- Clear the area around the work
- Tell us about any water getting in
How to get a quote
For external mastic in Halfway Street, phone 0345 464 0079 or drop us an email. Tell us what the problem is and where, and we will agree the price before any work begins.
Related advice
Halfway Street buildings and the weather
With historic houses such as Goodnestone Park (about 4.3 miles north) nearby, there’s older building stock in the area around Halfway Street as well as newer homes. In older buildings, older walls and rooflines need a sealant that moves with them and suits the material. Compared with the north and west, the South East gets less rain, though outdoor sealant still has to go onto a dry joint, so the forecast decides the day.
Rented homes near Shepherds Well station change hands often, and outside joints that have cracked can let damp into a rental, so check them between lets.
Halfway Street is about 4 miles north-west of Dover, in Kent. Whether you’re in the middle of Halfway Street or further out, we cover external mastic for every kind of property, from flats and houses to offices and hotels. Our area takes in 922 places across Kent, large and small. We also work in Chelmsford, about 50 miles from Halfway Street.
Our applicators cover all of the CT15 postcode area for external mastic and the streets around it. We also cover Sibertswold (1 mile north-east), Coldred (1 mile east), Lydden (1 mile south-east), Waldershare (2 miles east) and Eythorne (2 miles north-east). Larger places within reach include Canterbury (9 miles north-west), Margate (15 miles north-east), Dover (4 miles south-east), Folkestone (7 miles south), Ramsgate (14 miles north-east) and Broadstairs (15 miles north-east).
What’s near Halfway Street
We work in homes and buildings around The Bricklayers' Arms. The closest station to Halfway Street is Shepherds Well station, about 0.6 miles north-east of the centre. Well-known places in the area include Buckland Hospital (4.5 miles south-east) and Dover Transport Museum (3.6 miles south-east).
What the job involves on each surface
Render joints
Water behind render can lead to blown patches. A sound joint keeps the render dry behind.
Cladding and façade panels
Panels heat up and cool down quickly, so the joints work hard every day. The sealant is chosen with that in mind.
What we’re called out for in Halfway Street
Sunlight, wet weather and frost wear exterior sealant down. In time it goes hard, crazes on the surface and stops stretching, so the joint eventually tears or comes away from one side.
Any of these means the joints need attention:
- Leaking joints around cladding and façade panels
- Joints with sealant missing in places
- Sealant pulling away from one side of the joint
- Cracked joints where brick meets render or frames
Homes close to Church of St Andrew include some older properties, and old and new materials meet at the roofline and walls, which is where sealant earns its keep.
What to look for in a quote
- What guarantee comes with the work
- Whether all the old sealant comes out first
- Which colour the sealant will be
- Which sealant they’ll use, and why
Questions from Halfway Street
Can you do external mastic in Halfway Street?
Yes. We work across London and the South East, and Halfway Street is part of that. Just ring 0345 464 0079 or send us an email with a few details of the job, and we’ll give you a clear price.
I let a flat near Shepherds Well station. Can you help?
Yes, landlords and agents are among the people we work for. You can phone 0345 464 0079 or send us an email with the details for a clear quote.
Do you take out the old sealant first?
Yes. We cut out all the old sealant and clean the joint before applying anything new.
Is there a guarantee?
Yes. All our work carries a 12-month guarantee.
Are you ARBOMaster approved?
Yes. We are ARBOMaster approved, the scheme for applicators of Arbo sealants.
Do you use backing rod?
We fit closed-cell backing rod wherever the joint depth needs controlling. It controls the depth and stops the sealant bonding to the back so the bead can stretch.
Where is Mr Mastic based?
Our base is in Crawley, and we work across South East England, London and Scotland.
Which products do you use?
We choose the sealant for the joint, not the other way round. Movement, water and weather all affect the choice.
Can I do it myself?
A careful DIYer can reseal a simple joint, such as a straightforward joint indoors. The common mistakes are sealing over old sealant, sealing a damp joint and using far too much.
The biggest DIY mistake is sealing over old sealant. Silicone doesn’t stick to old silicone, so it peels away and traps moisture behind it. All the old material has to come out first.
