Kent · England
External Mastic in Ratling
Sealing brickwork movement joints, render, cladding and façade joints for homes and businesses in Ratling and across Kent. Fully insured, ARBOMaster approved and guaranteed for a year.
- Failed seals between different materials
- Damp patches traced to an open external joint
- Sealant pulling away from one side of the joint
External mastic for homes and businesses in Ratling
Getting the depth right is half the job. 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. If you are dealing with cracked joints where brick meets render or frames and weeds or debris growing in open joints, we can help, whatever the surface.
External sealant needs dry, clean surfaces, so work around Ratling is planned for dry weather. Tell us about access to all sides of the building, including outbuildings and garages.
You get a one-year guarantee, the same in Ratling as everywhere else we work.
- Location
- Ratling (CT3)
- Region
- Kent
- Guarantee
- 12 months on all our work
- Price
- A clear price before work begins
- Phone
- 0345 464 0079
- Updated
- 26 October 2026
When it is not the sealant
We won’t take on work that won’t last, so these are the limits:
- Cracks in the bricks or render themselves, away from the joints
- Cutting new joints into brickwork, which is building work rather than sealant work
- Damp that is not coming from the joint
Not sure which it is? You can call 0345 464 0079 or email us and we will tell you honestly.
Joints and surfaces we work on
- Copings & trims
- Render & cladding joints
- Brickwork movement joints
- Façade panels
- Concrete & block
- Joints between brick and frames
Landlord and commercial work in Ratling
Failed sealant is one of the commonest items on a check-out report, and it’s quick to put right between tenancies. We can quote for more than one property at once.
Landlords and letting agents in Ratling can book us as well as homeowners. Resealing between tenancies is a simple way to keep a property in good order.
Looking after it afterwards
Once the sealant has cured, a few habits help it last:
- Make sure movement joints aren’t pointed over
- Avoid pressure-washing directly into sealant joints
- Leave the joints unpainted unless we’ve said otherwise
- Tell anyone working on the walls about the movement joints
Look over the joints once a year, ideally after winter. Splits, gaps at the edges or plants in the joint are early warning signs.
An open movement joint lets rain into the wall every time it pours. That can lead to damp patches, staining and frost damage which cost more to put right than the joint.
What we do, step by step
We keep the work tidy and contained to the area we’re working on, so you can get on with your day. The job generally takes anything from a few hours to several days, depending on the building. Somewhere like Ratling needs a little journey planning: 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.
- 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.
- A low-modulus exterior sealant is gunned in and tooled to a neat finish.
How to prepare
- Let us know about stairs, lifts or work at height
- For indoor joints, keep the area dry beforehand if you can
- Mention if the joints have been sealed before
Get a quote
Call for a quick quote, or email us if that is easier. Describe what needs sealing and we will explain what’s involved and send you a clear quote.
Related advice
Common questions in Ratling
Is Ratling within the area you cover?
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.
Do you cover Ratling for external mastic?
Yes. Our work covers London and the South East, and Ratling is part of that. You can phone 0345 464 0079 or drop us an email and tell us what needs doing, and we will send you a clear quote.
Do you work for hotels and businesses?
Yes. We work in offices, washrooms, hotels and other commercial premises, as well as homes. We can talk about working times when we quote.
How long will you be here?
A typical job takes a few hours for a handful of joints, longer for a whole elevation, including preparation and clearing up. Your quote will say how long we expect yours to take.
Are you insured?
Yes. Mr Mastic is fully insured.
What do you need from me for a quote?
Just the basics: where it is, what you’ve noticed and how we reach it. After that, simply call 0345 464 0079 or email us.
Which products do you use?
Products from Arbo and Everbuild, among others, picked for each joint. We explain the product when we quote.
Will it make a mess?
No. We protect the surfaces around the joints, and we clear up the old sealant and our materials before we leave.
Towns and villages near Ratling
What else we do in Ratling
Ratling buildings and the weather
London and the South East are among the drier parts of the UK, but outside sealant still needs a dry, clean surface, so outdoor work is planned around the forecast. Historic houses like Goodnestone Park (about 1 mile north-east) are a reminder that the area around Ratling 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.
For site and facilities teams at buildings such as St Joseph's Catholic Primary School, larger buildings have long runs of movement joint that eventually need resealing. Rented homes near Adisham station change hands often, and outside joints that have cracked can let damp into a rental, so check them between lets.
Ratling is about 6 miles south-east of Canterbury, in Kent. Every kind of property in Ratling can book us for external mastic. Every job comes with our 12-month guarantee. Across Kent, we cover 922 places, and Ratling is one of them. Our Chelmsford page covers work nearby (47 miles or so).
Here we cover the CT3 postcode area for external mastic. We also cover Nonington (1 mile south-east), Snowdown (1 mile south), Goodnestone (1 mile north-east), Chillenden (2 miles east) and Woolage Village (2 miles south). Within a short drive, we also cover Canterbury (6 miles north-west), Margate (13 miles north-east), Dover (8 miles south-east), Folkestone (11 miles south), Ramsgate (11 miles north-east) and Broadstairs (13 miles north-east).
Local landmarks in Ratling
Ratling’s nearest station is Adisham station, roughly 0.5 miles north-west. Nearby you’ll also find St Martins Hospital (5.2 miles north-west).
Common problems we fix in Ratling
If plants are growing out of a joint, the sealant has generally failed or was never there. Dirt and roots then trap moisture in the joint.
Look out for these signs:
- Joints with sealant missing in places
- Cracked joints where brick meets render or frames
- Rain getting behind render or cladding at a joint
- Sealant pulling away from one side of the joint
For an older house near a landmark such as St Peter, the joints between older walls, newer extensions and the roofline need a sealant that can move.
Questions to ask before you book
- What preparation is included
- The length of the guarantee
- What happens if they find a problem under the old sealant
- Whether you can choose the colour
Can I do it myself?
The biggest DIY mistake is sealing over old sealant. New silicone will not bond to old, so it peels away and traps moisture behind it. All the old material has to come out first.
The difference is mostly in the preparation and the product. We take joints back to clean, dry surfaces, and the sealant is chosen for how the joint moves and where it is.
What the job involves on each surface
Cladding and façade panels
Metal and composite panels move a lot with temperature, so the joint sealant has to cope with frequent movement. We choose the product to suit.
Copings and trims
A failed coping joint lets water into the top of the wall. Resealing them is a small job that protects a lot.