Kent · England
External & façade joints in Conyer, Kent
Sealing brickwork movement joints, render, cladding and façade joints in Conyer, with a 12-month guarantee on every job. Call for a quick quote.
- Movement joints filled with mortar instead of sealant
- Sealant pulling away from one side of the joint
- Rain getting behind render or cladding at a joint
Why deal with it now?
Low-modulus sealants stretch easily, so they put less strain on the joint edges. That matters on brick, render and concrete, which can be weaker at the face. Too stiff a sealant can pull at the edges and break them. Around Conyer, older homes often have timber in their floors and frames, and water through a failed joint can rot timber if it’s left.
Leaving a failed joint usually makes the job bigger, not smaller. If you are unsure, ring 0345 464 0079 or email us and we will give you an honest view and a quote.
Why choose Mr Mastic in Conyer
- A choice of colours where the product allows
- Neat joints and a tidy finish
- Approved under the ARBOMaster scheme
- You choose the colour before work begins
External mastic for homes and businesses in Conyer
External mastic is a job where short cuts show quickly. Overfilled joints, missing backing rod and sealant laid over old sealant all tend to fail early. We take the old material out and do it properly. We work on copings & trims, joints between brick and frames and concrete & block, and people most often call us about rain getting behind render or cladding at a joint and moss and dirt in joints with no sealant left.
External sealant needs dry, clean surfaces, so work around Conyer is planned for dry weather. Let us know about access to every wall, plus any garages or outbuildings.
Big or small, it’s backed by our 12-month guarantee.
- Where
- Conyer (ME9)
- Region
- Kent
- Cover
- A year, on every job
- Quote
- Quoted before any work starts
- Telephone
- 0345 464 0079
- Page updated
- 26 October 2026
External mastic in Conyer: local notes
Conyer is close to the coast, and homes near the sea take more wind-driven rain, with salt in the air closer to the shore. Both are hard on movement joints and outside wall joints, which can dry out and crack sooner where a building faces the weather. Compared with the north and west, the South East gets less rain, 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 Teynham station, outside joints that have cracked can let damp into a rental, so check them between lets.
Conyer is about 4 miles east of Sittingbourne, in Kent. Jobs in Conyer get the same care as everywhere else we work: the old material taken out, joints prepared properly and a 12-month guarantee. We cover 922 towns and villages across Kent. There’s also a page for Chelmsford, about 30 miles away.
Postcode districts we cover here for external mastic: ME9. External mastic is available to properties on North Quay and Conyer Road and the roads around them. Close by, we work in Teynham Street (1 mile south-east), Deerton Street (1 mile south-east), Teynham (1 mile south), Norton Ash (2 miles south) and Lewson Street (2 miles south). Within a short drive, we also cover Maidstone (14 miles south-west), Ashford (15 miles south), Canterbury (12 miles south-east), Sittingbourne (4 miles west), Whitstable (9 miles east) and Faversham (4 miles south-east).
Landmarks near Conyer
The closest station to Conyer is Teynham station, about 1.1 miles south. A little further out are Dolphin Sailing Barge Museum (3.1 miles west) and Castle Rough (2.8 miles west).
Do you need external mastic in Conyer?
Sometimes a movement joint was filled with mortar or a rigid filler. With the joint locked solid, the movement turns into cracks elsewhere in the wall.
The most common problems we see are:
- Movement joints filled with mortar instead of sealant
- Panel joints letting water in
- Weeds or debris growing in open joints
- Weathered mastic that no longer stretches
For an older house near a landmark such as Church of St Mary, 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 preparation is included
- Whether they seal over old material or remove it
- How long the guarantee is
- How much experience the applicator has
What affects the cost of external mastic
There’s no set price list. The quote depends on:
- Working hours on commercial sites
- Any mould that needs treating
- The size of the job
- How easy the joints are to reach
A few things move the cost up or down: the old material and how easily it comes out, whether mould needs treating, and whether we need extra access for height. We take all of that into account in your quote.
What to tell us for a quote
To help us quote quickly, let us know:
- How we’d reach the joints
- A few photos by email, if you can
- Where the property is
- What the problem is, such as mould, gaps, leaks or cracking
Need a quote? Please phone 0345 464 0079 or send us an email and tell us about the job. We’ll explain what we’d do and give you a clear price before we start.
Can I do it myself?
The biggest DIY mistake is sealing over old sealant. New silicone will not bond to old, so it lifts and traps water and mould underneath. Everything old must be removed first.
Some jobs are best left to a professional: high-level joints, fire-rated gaps, external movement joints and big jobs need the right product, the right access and the right method.
Your questions about external mastic in Conyer
Is external mastic in a coastal place like Conyer any different?
Near the sea, outside joints face more wind, rain and salt than they would inland, so preparation and the right sealant matter all the more. Walls facing the sea are normally the first to need attention.
Do you cover smaller places like Conyer?
Yes, Conyer 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.
Do you do commercial work?
Yes. Commercial and hotel work is a large part of what we do, as well as homes. We can talk about working times when we quote.
Can I add another job to the visit?
Yes, we can. More than one area can go on one quote.
Do you work for letting agents?
Yes. As well as householders, we work for landlords, agents, businesses and hotels across Kent.
What should I tell you?
Just the basics: where it is, what you’ve noticed and how we reach it. After that, simply ring 0345 464 0079 or send us an email.
What colours does the sealant come in?
We aim for a joint that suits the wall rather than one that jumps out. We will talk through colour options before we start, matched as closely as the range allows.
Why is there a gap in my brick wall?
It’s a deliberate gap that lets the wall expand and contract without cracking. It should be filled with flexible sealant, never mortar.
When something else is needed
Some problems need a builder, plumber or other trade rather than us:
- Failed render or damaged cladding panels
- Rising or penetrating damp from elsewhere in the wall
- Structural movement, which needs a surveyor or engineer
Not sure which it is? You can call 0345 464 0079 or email us and we will tell you honestly.
What we seal
- Copings & trims
- Render & cladding joints
- Joints between brick and frames
- Brickwork movement joints
- Concrete & block
- Façade panels
Other services in Conyer
How it works
Every visit runs the same way: we look at the joints together, protect the area around them, carry out the job and clear up. It generally takes a few hours to a few days, depending on the length of joint and the access. Somewhere as small as Conyer, access is often the only tricky part. For outside work, also let us know about exposed walls and any outbuildings involved.
- First, the joints are inspected and the access agreed.
- Every bit of old sealant and any mortar or debris is cut out.
- The faces are brushed clean and primed where the product requires it.
- Backing rod sized to the joint goes in to set the depth.
- The exterior sealant is applied, tooled and checked along its length.
How to prepare
- Let us know about earlier repairs to the joints
- Mention any tricky access
- Mention any parking rules near the property
Getting a quote
We quote each job on its own, so start by telling us what you need. Just call 0345 464 0079 or email us with the details.
Advice
Work for landlords, hotels and businesses
Letting agents and landlords in Conyer can book us as well as householders. Resealing between tenancies is a simple way to keep a property in good order.
In hotels, rooms out of use cost money, so we plan the work room by room. Hotel work is part of what we do, alongside homes and businesses.