Kent · England
External Mastic in Deerton Street
Sealing brickwork movement joints, render, cladding and façade joints in Deerton Street, with a 12-month guarantee on every job. Call for a quick quote.
- Joints with sealant missing in places
- Hard, crazed mastic that has stopped moving
- Weeds or debris growing in open joints
External mastic in Deerton Street, done properly
Movement joints let brickwork, render and cladding expand and shrink without cracking. Its sealant has to flex with the building, season after season, so once it splits or hardens, the joint stops working and water gets in. Common call-outs are for old sealant gone brittle and cracked and joints where the bead has come unstuck, across brickwork movement joints, joints between brick and frames and concrete & block.
Around Deerton Street, older buildings can be stone, brick or timber-framed, many with extensions added later. The joints where those materials meet are the weak points, and they need the right sealant at the right depth.
We stand behind the work with a one-year guarantee.
- Place
- Deerton Street (ME9)
- Region
- Kent
- Cover
- One year on every job
- Quote
- Quoted before any work starts
- Call
- 0345 464 0079
- Last updated
- 26 October 2026
Your questions about external mastic in Deerton Street
Does the coastal weather in Deerton Street affect outside sealant?
Near the coast, wind-driven rain and, nearer the shore, salt air make outside sealant work harder. The right product, a clean joint and the right depth all help it cope.
Do you work for landlords with property near Teynham station?
Yes, landlords and agents are among the people we work for, and several properties can be quoted together. You can call 0345 464 0079 or drop us an email with the details for a clear quote.
Can you do several jobs on one visit?
Of course. Doing several areas at once is normally more efficient.
How long does external mastic last?
It varies from wall to wall: joints on exposed walls or with a lot of movement age sooner. A yearly look will tell you when they need doing. Our work comes with a 12-month guarantee.
Are you fully insured?
Yes. Full insurance covers our work, and we can confirm the details when we quote.
Do I need to be at home?
If the work is inside, we need someone to let us in. After that, you can carry on with your day.
Can you match the colour of my brickwork?
The aim is a neat, even joint in a colour that suits the wall. Colour is agreed with you before we begin.
How much does external mastic cost in Deerton Street?
We do not publish prices, because the cost depends on the job: its size, the old material, access and the product needed. We agree the price before any work begins.
Why act early in Deerton Street
An open joint keeps letting water into the wall with every downpour. In cold weather, frost can damage wet brick and render, so the damage spreads beyond the joint. Where a wall is exposed, as many are in small places like Deerton Street, wind-driven rain gets into any failed joint, and older walls, once damp, take a long time to dry.
Rather than a set price list, we look at what your job involves: the amount of work, the old material and the access. You will know the price before we begin.
What you get with us
- Arbo and Everbuild products
- We leave the area clean and tidy
- 180+ five-star Google reviews
- White, clear, grey or coloured to suit, where the product allows
Read what affects the cost and our reviews.
Signs you need external mastic in Deerton Street
The wrong product in a moving joint is a classic cause. A stiff, general-purpose sealant can’t cope with a joint that moves a lot, so it pulls away from the edges.
Any of these means the joints need attention:
- Weeds or debris growing in open joints
- Rain getting behind render or cladding at a joint
- Movement joints filled with mortar instead of sealant
- Panel joints letting water in
If you let a flat or house near Teynham station, outside joints that have cracked can let damp into a rental, so check them between lets.
What your quote should include
- What the quote includes, VAT included or not
- When the joint can take water or movement
- Is the old sealant removed completely?
- What happens if the job turns out different
Different surfaces, different methods
Copings and trims
Joints in copings, parapets and trims are exposed to the worst of the weather. Each is resealed with a weatherproof, flexible sealant.
Cladding and façade panels
Where a cladding system has its own specified sealant, we follow it. Tell us what the building has when you get in touch.
What we do, step by step
Before we leave, we go over the finished joints with you. The visit itself usually takes anything from a few hours to several days, depending on the building, depending on the size of the job. In a small place like Deerton Street, access is usually the main thing to plan. For outside work, also let us know about exposed walls and any outbuildings involved.
- We start by walking round the building and agreeing the joints and the access.
- 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.
- Backing rod sized to the joint goes in to set the depth.
- The exterior sealant is applied, tooled and checked along its length.
Before we arrive
- Clear the area around the work
- Let us know about parking restrictions
- For indoor joints, keep the area dry beforehand if you can
Getting a quote
To get a quote, call 0345 464 0079 or email us with the location and a short description of the problem. You’ll have a clear quote before work begins.
Related advice
Keeping the joints in good condition
Aftercare is simple:
- Avoid pressure-washing directly into sealant joints
- Fix overflowing gutters above sealed joints
- Look over the joints every year, ideally after winter
- Point out the joints to other trades
Avoid pressure-washing straight into the joints. High-pressure water can lift the edges and let water in behind.
Water getting behind cladding or render can go unnoticed for a long time. When it finally shows inside, the joint may have been open for years, so it’s worth resealing at the first signs.
Outside joints around Deerton Street
Deerton Street is within about 2 miles of the coast, where wind-driven rain is a fact of life and, nearer the shore, so is salt air. Both are hard on movement joints and outside wall joints, which can dry out and crack sooner where a building faces the weather. With historic houses such as Belmont House and Gardens (about 4.1 miles south) nearby, there’s older building stock in the area around Deerton Street as well as newer homes. In older buildings, older brick and stone need a sealant that suits them, at the right joint depth.
For an older house near a landmark such as Church of St Mary, older walls, gutters and the joints where extensions meet them need a flexible sealant. For site and facilities teams at buildings such as Teynham Parochial Church of England Primary School, movement joints, cladding joints and gutters on larger buildings need the same care as a house’s.
Deerton Street is about 3 miles west of Faversham, in Kent. From the centre of Deerton Street to the outskirts, we cover external mastic for every kind of property, from flats and houses to offices and hotels. Our Kent coverage runs to 922 places, and Deerton Street is one of them. We also work in Chelmsford, around 32 miles away.
Work in ME9 is quoted and booked the same way as anywhere else. If you need external mastic at a property on Deerton Street and Lower Road or anywhere close by, our applicators can take on the job. Close by, we work in Norton Ash (1 mile south), Teynham Street (1 mile north), Lewson Street (1 mile south-west), Teynham (1 mile west) and Four Oaks (1 mile south-east). Within a short drive, we also cover Maidstone (14 miles west), Ashford (13 miles south), Canterbury (11 miles east), Sittingbourne (4 miles west), Whitstable (9 miles east) and Faversham (3 miles east).
Local landmarks in Deerton Street
Deerton Street’s nearest station is Teynham station, roughly 1 mile west of the centre. Well-known places in the area include Newnham Castle (3.3 miles south) and Sittingbourne Heritage Museum (3.8 miles west).
Also near Deerton Street
More services for Deerton Street
For landlords and businesses
Hotels need rooms back in use, so we plan the work room by room. We’ve worked in hotels as well as homes and businesses.
Housing providers, facilities teams and property managers book us too in Deerton Street and across Kent. We can quote a run of properties together, and we are fully insured for the work.
Quotes for external mastic in Deerton Street
Every job gets its own quote. This is what makes a difference:
- Working hours on commercial sites
- Whether old sealant or filler has to be cut out
- Any mould that needs treating
- How easy the joints are to reach
No two jobs are quite the same, so each one gets its own quote. The number of joints, how easy they are to reach and the sealant needed all play a part.
Helping us quote
Photos by email are helpful but not essential. Try to tell us:
- Pictures of the joints, sent by email
- Any access issues, like height or stairs
- Where the property is
- If it’s domestic, commercial or a hotel
We quote each job on its own. Simply phone 0345 464 0079 or email us and describe the job.