Kent · England
External & façade joints in Langley, Kent
External mastic for Langley and the surrounding area: careful preparation, the right product and tidy work. Ask us for a quick quote.
- Rain getting behind render or cladding at a joint
- Movement joints with cracked, split or missing sealant
- Gaps where render, brick and frames meet
How we handle external mastic in Langley
A movement joint is only as good as its depth. Backing rod controls how deep the sealant goes and keeps it off the back of the joint, leaving it bonded to two faces so it can move with the wall. We work on render & cladding joints, joints between brick and frames and façade panels, and common reasons people get in touch are rigid filler in a joint that should flex and hard, crazed mastic that has stopped moving.
Older homes in small places like Langley may be stone, brick or timber-framed, often with later extensions. The joints where those materials meet are the weak points, and they need the right sealant at the right depth.
Each job carries a 12-month guarantee, large or small.
- Location
- Langley (ME17, ME15)
- Region
- Kent
- Guarantee
- A year, on every job
- Quotes
- A clear quote up front
- Telephone
- 0345 464 0079
- Updated
- 26 October 2026
How to look after the new joints
Looking after new joints is easy:
- Fix overflowing gutters above sealed joints
- Tell anyone working on the walls about the movement joints
- Keep soil, plants and ivy away from the joints
- Look over the joints every year, ideally after winter
Don’t paint over the new sealant unless we’ve said the product is paintable. Many exterior sealants aren’t designed to be painted.
Once a joint cannot move, the wall finds another way, normally as cracking in the brickwork or render nearby. Resealing it early helps prevent that.
Places near Langley
Other services in Langley
Do you need external mastic in Langley?
Joints sealed without backing rod, or far too deep, rarely last. If the sealant sticks to the back as well as the sides, it can’t stretch and tears as soon as the joint widens.
The most common problems we see are:
- Weathered mastic that no longer stretches
- Panel joints letting water in
- Rigid filler in a joint that should flex
- Sealant that has lost its bond to the brick or render
For site and facilities teams at buildings such as Langley Park Primary Academy, larger buildings have long runs of movement joint that eventually need resealing.
What to look for in a quote
- What happens if they find a problem under the old sealant
- What the cure time is
- Who does the work, and how experienced they are
- Whether you can choose the colour
Langley questions
I let a flat near Bearsted station. Can you help?
Yes, landlords and agents are among the people we work for, and several properties can be quoted together. Just ring 0345 464 0079 or drop us an email with the address and what needs doing, and we will give you a clear quote.
Do you cover smaller places like Langley?
Yes, smaller places are covered as well as towns. Our work covers London and the South East. Let us know about access, parking and anything unusual about getting there when you book.
How long will you be here?
It depends on the size of the job, but most jobs take a few hours to a few days, depending on the length of joint and the access. We’ll tell you when we quote.
Can I do it myself?
For a simple, easy-to-reach joint, a careful DIYer can do a reasonable job. The usual mistakes are sealing over old sealant, sealing a damp joint and using too much.
What do you put in the joint?
It depends on the joint: sanitary silicone where it gets wet, and sealants suited to movement or weather elsewhere. Brands we use include Arbo and Everbuild.
Do the sealants smell?
Possibly a little. Any smell clears as the sealant cures.
What information do you need?
The location, the problem and the rough size of the job. Photos by email help too.
When will the joints need doing again?
That varies with the weather the wall faces, how much it moves and the sealant used. Sealant is a maintenance item, so check the joints once a year and renew it when it starts to fail.
Quotes for external mastic in Langley
For a quick quote, just ask. The main things that affect it are:
- How many areas need sealing
- Whether the work is at height
- How much there is to do
- How much old sealant there is and how hard it is to remove
Commercial jobs are quoted on the same basis as homes: how much there is to do, how we reach it and what it needs, plus any working-time requirements on site. Ask us for a quote and we’ll explain what it covers.
Asking for a quote
Photos by email are helpful but not essential. Please mention:
- Whether it has been sealed before
- The type of property
- Pictures of the joints, sent by email
- The rough size of the job
Every job is quoted individually. Simply ring 0345 464 0079 or email us and describe the job.
Langley buildings and the weather
Historic houses like Stoneacre (about 1.1 miles north) are a reminder that the area around Langley has older buildings as well as new. In older buildings, older brick and stone need a sealant that suits them, at the right joint depth. The South East is one of the drier parts of the UK, yet outdoor joints still have to be sealed dry, so jobs are booked with the weather in mind.
If you let a flat or house near Bearsted station, failed wall and movement joints let damp in, so they’re worth checking between tenancies. 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.
Langley is about 3 miles south-east of Maidstone, in Kent. Wherever you are in the ME17 postcode area, we can carry out external mastic at your property. Our area takes in 922 places across Kent, large and small. Our London page covers work nearby (34 miles or so).
We work across ME17 and ME15 for external mastic and the streets around it. Whether your property is on Heath Road, Green Lane and Sutton Road or a nearby road, our applicators can take on the job. Neighbouring places we cover for external mastic include Langley Heath (1 mile east), Five Wents (1 mile south-east), Warmlake (1 mile south), Otham (1 mile north-west) and Chart Sutton (1 mile south-west). We also work in nearby towns such as Maidstone (3 miles north-west), Ashford (14 miles south-east), Sittingbourne (10 miles north-east), Royal Tunbridge Wells (15 miles south-west), Tonbridge (14 miles west) and Faversham (14 miles north-east).
Local landmarks in Langley
Typical jobs here are in homes near New Line Learning Academy, The Potting Shed pub and Senacre Technology College. The closest station to Langley is Bearsted station, roughly 2.7 miles north. A little further out are KIMS hospital (3.6 miles north) and Sutton Valence Castle (1.8 miles south). For a walk, there’s Detling Hill.
Why it’s worth doing now in Langley
It often makes sense to reseal all the failing joints on an elevation together. Joints of the same age tend to fail together and it means sorting access once. Older cottages and farmhouses around Langley can have timber floors and frames, where water from a failed joint can cause rot if it’s left.
A failed joint rarely gets cheaper to fix by waiting. If you are not sure whether it needs doing, ring 0345 464 0079 or send us an email for an honest opinion and a quote.
Why Langley clients choose us
- 20+ years of sealant experience
- Full insurance on every job
- Homes, businesses and hotels
- A sealant colour to suit the surroundings
Read our cost guide and our reviews.
Landlord and commercial work in Langley
Housing providers, facilities teams and property managers book us too in Langley and across Kent. Several sites can go on one quote, and we are fully insured.
Hotels need rooms back in use, so we plan the work room by room around your bookings where we can. We have worked in hotels as well as homes and businesses.
The process
We bring everything the job needs with us, so there’s nothing for you to buy. Once we’ve agreed what’s being done, the area is protected and the work begins. It normally takes a few hours to a few days, depending on the length of joint and the access. In a small place like Langley, access is generally the main thing to plan. For outside work, also let us know about exposed walls and any outbuildings involved.
- 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.
How to prepare
- Mention any parking rules near the property
- For indoor joints, keep the area dry beforehand if you can
- Let us know if you’ve seen damp or leaks
Ask for a quote
Call for a quick quote, or send an email if you’d rather. Describe what needs sealing and we will talk you through the work before giving you a price.
Related advice
Can I do it myself?
If you’re 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 does not work out, we can still put it right.
What a professional job adds is preparation and the right product. Joints are cleaned back to sound surfaces and dried, and the sealant is chosen for how the joint moves and where it is.