Medway · England
External & façade joints in Chatham, Medway
Problem with your movement joints in Chatham? We cut out the old, prepare the joints and apply the right sealant, with a 12-month guarantee.
- Cracked joints where brick meets render or frames
- Weathered mastic that no longer stretches
- Movement joints filled with mortar instead of sealant
Surface by surface
Concrete and blockwork
Concrete and block walls shrink as they dry and move with temperature. Their movement joints are sealed over backing rod with a flexible sealant.
Copings and trims
Copings expand and contract through the day, so a flexible sealant suits them best.
About our external mastic in Chatham
Getting the depth right is half the job. Closed-cell backing rod sets the depth and stops the sealant sticking to the back, so it bonds to the two sides only and can stretch. Typical jobs include rigid filler in a joint that should flex and panel joints letting water in, on joints between brick and frames, façade panels and concrete & block.
Chatham has everything from period brickwork to modern rendered and clad buildings. Newer buildings rely on sealed movement joints, while older ones need their gutters, fascias and trims kept tight.
We stand behind the work with a 12-month guarantee, so you are covered after we have gone.
Walls and rooflines in Chatham
Rainfall in the South East is lower than in much of the UK, but outside sealant still needs a dry, clean surface, so outdoor work is planned around the forecast. Historic houses like Restoration House (about 2.4 miles north-west) are a reminder that the area around Chatham has older buildings as well as new. In older buildings, older walls and rooflines need a sealant that moves with them and suits the material.
Rented homes near Chatham station change hands often, and split movement joints are easy to miss on a rental until damp shows inside. For site and facilities teams at buildings such as Wayfield Primary School, movement joints, cladding joints and gutters on larger buildings need the same care as a house’s.
Chatham is about 29 miles east of London, in Medway. Every kind of property in Chatham can book us for external mastic. The work is guaranteed for a year. Our area takes in 68 places across Medway, large and small. Chelmsford is on our list too, around 26 miles away.
Work in ME5, ME4, ME7 and ME1 is quoted and booked the same way as anywhere else. Whether your property is on Luton High Street, Market Place and High Street or anywhere close by, we can help. With the A2 and A229 close by, Chatham is easy for our applicators to reach. We also cover Luton (1 mile north), Hale (1 mile north-east), Darland (1 mile east), Capstone (1 mile east) and Walderslade (1 mile south). Within a short drive, we also cover Rochester (3 miles north-west), Rainham (3 miles east), Strood (3 miles north-west), Park Wood (3 miles east), Twydall (3 miles north-east) and Hoo St Werburgh (5 miles north). As one of the bigger places in Medway, Chatham has homes, rented property and businesses of every kind.
Near you in Chatham
In Chatham, that means homes and buildings near The Huntsman pub, Walderslade Girls' School and Darland Banks and the streets around them. Chatham’s nearest station is Chatham station, about 1.7 miles north. Other landmarks nearby include Six Poor Travellers House (2.5 miles north-west) and Rochester Castle (2.6 miles north-west). Green spaces nearby include Blue Bell Hill and Burham Down.
What affects the quote in Chatham
You will get a clear quote before work begins. It’s based on:
- Working hours on commercial sites
- How easy the joints are to reach
- The number and length of the joints
- How many rooms, windows or areas are involved
Rather than a set price list, we price the job in front of us: the amount of work, the old material and the access. The price is agreed before we begin.
What we need to know
The more you tell us, the more accurate the quote. When you ask for a quote, tell us:
- Roughly how big the job is
- The problem you’ve noticed
- How we’d reach the joints
- A few pictures by email, if you can
A good description makes for an accurate quote. Let us know the location, the problem and roughly how many joints.
More services for Chatham
When something else is needed
We will not take on work that won’t last, so here’s what sealant cannot put right:
- Damp that isn’t coming from the joint
- Movement that is more than a sealant joint can take
- Failed render or damaged cladding panels
If you are not sure, just phone 0345 464 0079 or send us an email and we will give you a straight answer before booking.
Joints and surfaces we work on
- Copings & trims
- Brickwork movement joints
- Façade panels
- Concrete & block
- Render & cladding joints
- Joints between brick and frames
Signs you need external mastic in Chatham
Sometimes a movement joint was filled with mortar or a rigid filler by mistake. The joint can’t move, so the wall cracks somewhere else instead.
The problems people generally mention when they call include:
- Movement joints filled with mortar instead of sealant
- Joints with sealant missing in places
- Plants rooting in failed movement joints
- Sealant that has lost its bond to the brick or render
If you live in an older home near Christ the King, older walls, gutters and the joints where extensions meet them need a flexible sealant.
What your quote should include
- Who does the work, and how experienced they are
- How the surfaces are prepared before sealing
- How the colour is chosen
- What product goes in the joint
Chatham: your questions answered
Do you work for landlords with property near Chatham station?
Yes, landlords and agents are among the people we work for, and several properties can go on one quote. Just phone 0345 464 0079 or drop us an email with the address and what needs doing, and we’ll send you a clear quote.
Do you cover Chatham for external mastic?
Yes, Chatham is within the area we cover. We work across London and the South East. You can call 0345 464 0079 or drop us an email and let us know what needs doing.
How do I get a quote for external mastic in Chatham?
Every job is different, so each one gets its own quote. For a quick quote, phone 0345 464 0079 or drop us an email with a short description of the job.
Can you seal over the old sealant?
No, it won’t last. It can look neat for a few weeks, but the new layer lifts away from the old one. Removing the old sealant completely is the only lasting way.
Are you fully insured?
Yes. Full insurance covers our work.
Do you hold any approvals?
Yes. We hold ARBOMaster approved applicator status.
Do you guarantee your work?
Yes. All our work carries our 12-month guarantee.
How long before the joint can be used?
Cure times vary by product and the conditions. Before we leave, we will tell you the cure time.
What happens if it’s left?
Pointing a movement joint with mortar might seem a neat fix, but it locks the joint solid. The wall then cracks somewhere else. The correct repair is a flexible sealant with the right backing. In a large rental market like Chatham, tired sealant leads to tenant complaints about mould, damp and leaks. Sorting it between tenancies is easier than dealing with it mid-let.
The cost reflects the work involved, not a rough estimate. That’s why we ask a few questions first and agree the price before starting.
Why book with us
- Every job guaranteed for a year
- Old sealant always removed completely
- Fully insured
- Anti-fungal silicone where joints get wet
Take a look at our cost guide and customer reviews.
How to look after the new joints
After the cure time, these simple habits help:
- Keep soil, plants and ivy away from the joints
- Keep movement joints as flexible joints, not mortar
- Point out the joints to other trades
- Avoid pressure-washing directly into sealant joints
Keep pressure washers away from the sealant. High-pressure water can lift the edges and let water in behind.
Once a joint cannot move, the wall finds another way, generally as cracking in the brickwork or render nearby. Resealing it early helps prevent that.
What happens on the day
Once we are on site, we compare the joints with what we discussed. If we find something unexpected, we talk it through with you first. Most jobs then take a few hours to a few days, depending on the length of joint and the access. In central Chatham, parking can be tight, so tell us about driveways, permits or nearby car parks. For flats, mention stairs, lifts and shared entrances as well.
- We look at every joint and agree a colour to suit the wall.
- Failed sealant is removed back to clean, sound faces.
- Closed-cell backing rod is pushed in so the sealant bonds to two sides only.
- Primer is applied wherever the sealant needs it.
- We gun in low-modulus sealant and tool it neatly.
Preparing for the visit
- Where the joints are inside, avoid wetting them before we arrive
- For business premises, tell us about site rules or sign-in
- Let us know about parking restrictions
Getting a quote
We quote each job on its own, so start by telling us what you need. Just phone 0345 464 0079 or drop us an email with the details.

