Kent · England
External & façade joints in South Street, Kent
External mastic in South Street from a team with over 20 years’ experience. Rated 4.9 on Google from 180+ five-star reviews.
- Rain getting behind render or cladding at a joint
- Gaps where render, brick and frames meet
- Weeds or debris growing in open joints
External mastic for homes and businesses in South Street
Ground-floor and low-level joints are straightforward to reach. Where joints are higher up, tell us about the building when you get in touch and we will confirm what’s needed to reach them safely. We work on render & cladding joints, concrete & block and brickwork movement joints, and the jobs we see most are failed seals between different materials and sealant pulling away from one side of the joint.
Around South Street, older buildings can be stone, brick or timber-framed, many with extensions added later. Where one material meets another is where water generally gets in.
We guarantee the work for a year. If something isn’t right with it in that time, tell us and we will put it right.
- Place
- South Street (DA13)
- Wider area
- Kent
- Cover
- 12 months on all our work
- Quote
- A clear quote up front
- Call
- 0345 464 0079
- Updated
- 26 October 2026
What we are called out for in South Street
A lot of failed joints come down to preparation: dusty or wet faces, no primer where one was needed, or old sealant left in. The sealant never bonds properly.
These are the problems we’re asked about most:
- Hard, crazed mastic that has stopped moving
- Weeds or debris growing in open joints
- Gaps where render, brick and frames meet
- Joints with sealant missing in places
Cobham College, about 3.3 miles north-east, is one of the historic houses in the wider area around South Street, and older homes nearby need a sealant that suits their walls.
Comparing quotes
- What the cure time is
- How the joint is cleaned and prepared
- How long the guarantee is
- Whether you can choose the colour
Surface by surface
Brickwork movement joints
People sometimes point up a brick movement joint by mistake. Where one has been mortared, we cut it out and reseal it with sealant if the joint can be cleared.
Cladding and façade panels
Cladding and façade panels are generally separated by sealed joints. We reseal them with a sealant suited to the panel material.
What external mastic looks like in South Street
Historic houses like Cobham College (about 3.3 miles north-east) are a reminder that the area around South Street has older buildings as well as new. Where a home is older, older brick and stone need a sealant that suits them, at the right joint depth. 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.
Managing a site like Culverstone Green Primary School? Then movement joints, cladding joints and gutters on larger buildings need the same care as a house’s. Rented homes near Meopham station change hands often, and split movement joints are easy to miss on a rental until damp shows inside.
South Street is about 6 miles south of Gravesend, in Kent. Our applicators cover external mastic for homes and businesses in South Street and the surrounding area. Our area takes in 922 places across Kent, large and small. You can also see our page for London, about 22 miles away.
We cover every part of DA13 for external mastic and the streets around it. That includes homes and businesses on South Street and Chapman's Hill. We also cover the places around South Street: New Street (1 mile west), Priestwood Green (1 mile east), Culverstone Green (1 mile south), Harvel (1 mile south-east) and Priestwood (1 mile east). We also work in nearby towns such as Maidstone (10 miles south-east), Dartford (8 miles north-west), Sevenoaks (9 miles south-west), Royal Tunbridge Wells (15 miles south), Gravesend (6 miles north) and Tonbridge (11 miles south).
Around South Street
We work in homes and buildings around Trosley Country Park and Meopham School, among other places. For rail, the closest station is Meopham station, about 2.4 miles north of the centre. Other landmarks nearby include Leybourne Castle (4.5 miles south-east) and Coldrum Long Barrow (2.3 miles south-east).
How to look after the new joints
After the cure time, these simple habits help:
- Show decorators and builders where the movement joints are
- Make sure movement joints aren’t pointed over
- Leave the joints unpainted unless we have said otherwise
- Keep soil, plants and ivy away from the joints
Do not let soil, plants or ivy build up against the new joints. Damp material against the sealant shortens its life.
Gaps, plants or missing sealant in a joint are worth getting looked at. Early work is quicker and leaves a better finish.
FAQs for South Street
Is South Street in your area for external mastic?
Yes, South Street is within the area we cover. We work across London and the South East. You can ring 0345 464 0079 or email us and tell us what needs doing.
Will you come out to South Street?
Yes, South Street 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.
When is the sealant fully cured?
Most sealants are touch-dry well before they’re fully cured. We will tell you how long to leave the joint.
How much does external mastic cost in South Street?
There’s no set price, as it depends on the job: how much there is, what’s there now, how we reach it and what it needs. We agree the price before any work begins.
How do you reach high-level joints?
It depends on the height and the site. Low-level joints are straightforward; for higher ones, send details and we’ll confirm the access.
Can you seal joints between two different materials?
Yes. Joints between dissimilar materials are a big part of external work. We use a flexible sealant suited to both surfaces.
What do you put in the joint?
We choose the sealant for the joint, not the other way round. Where it moves, gets wet or faces the weather makes a difference, and we’ll tell you what we’re using.
When will the joints need doing again?
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.
Leave it or put it right?
A failed movement joint lets water into the wall, behind render and cladding. Dealing with it early keeps the repair to the joint, instead of the wall and finishes around it. Where a wall is exposed, as many are in small places like South Street, wind-driven rain gets into any failed joint, and damp in older walls is slow to dry out.
A few things move the cost up or down: how much old sealant there is and how stubborn it is, whether mould needs treating, and whether the work is at height. We take all of that into account in your quote.
What you get with us
- One-year guarantee on every job
- White, clear, grey or coloured to suit, where the product allows
- We never seal over old sealant
- Full insurance on every job
See what affects the cost and customer reviews.
How we quote for external mastic
Call for a quick quote. What matters most is:
- The number of rooms or windows
- Whether the work is at height
- Whether there’s mould to deal with
- The number and length of the joints
Every job is a little different, so we quote each one individually. Size, access and the product the joint needs all play a part.
Asking for a quote
A few details help us give you an accurate quote. When you get in contact, it helps to mention:
- The type of property
- Where the job is, and your postcode
- What’s wrong with the joints now
- The rough size of the job
For a quick quote, get us on the phone, or send an email if you’d rather. Describe what needs sealing and we will explain what’s involved and give you a clear quote.
Places near South Street
Also in South Street
How it works
The work is kept neat and contained to the joints we’re treating. Expect the work to take a few hours for a handful of joints, longer for a whole elevation. For a village or hamlet like South Street, the journey is planned in advance: tell us about narrow lanes, gates, long drives and where we can park. Everything for the job comes with us, so a second trip is avoided where possible.
- 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.
- The joint faces are cleaned and primed where the sealant needs 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.
Before we arrive
- Mention any leaks or damp you’ve noticed
- Tell us about access, such as stairs, a lift or high-level joints
- Mention any parking rules near the property
Ask for a quote
Need a quote? Please phone 0345 464 0079 or email us and tell us about the job. You’ll know what we plan to do, and what it will cost, before any work begins.
Read more
Landlords, agents and businesses in South Street
Hotels need rooms back in use, so the work can be planned room by room around your bookings where we can. We’ve worked in hotels as well as homes and businesses.
Landlords and agents in South Street can book us as well as homeowners. Resealing between tenancies keeps a property looking cared for before the next move-in.