Kent · England
Maltman's Hill External Mastic
Movement joints in Maltman's Hill need attention? We cut out the old, prepare the joints and apply the right sealant.
- Joints with sealant missing in places
- Hard, crazed mastic that has stopped moving
- Cracked joints where brick meets render or frames
Can I do it myself?
If you’ve already had a go yourself, that is fine. We cut it out and start again, so tell us about it when you ask for a quote.
Some sealant jobs are within reach of a careful DIYer, such as a straightforward joint indoors. Where it goes wrong is sealing over the old bead, working on a wet joint or overloading the gap.
External mastic in Maltman's Hill, done properly
Where two different materials meet, such as brick and render or blockwork and metal, they move at different rates. A flexible exterior sealant takes up that movement. If you have damp patches traced to an open external joint and weathered mastic that no longer stretches, we can help, on brickwork movement joints, copings & trims and façade panels alike.
In a village or hamlet like Maltman's Hill, older cottages and farm buildings often stand in the open, so walls and rooflines take the full force of wind and rain. Joints on those walls need a sealant that moves with the building and stays in place.
The work is covered for a year after we finish. If anything isn’t right with it, ring 0345 464 0079 or email us.
- Where
- Maltman's Hill (TN27)
- Wider area
- Kent
- Cover
- One year on every job
- Quotes
- A clear quote up front
- Phone
- 0345 464 0079
- Page updated
- 26 October 2026

What we can’t put right
We will always be straight with you, so here’s what sealant can’t fix:
- Cracked brickwork or render that needs a builder or plasterer
- Movement that’s more than a sealant joint can take
- Adding movement joints to masonry that has none
If you are not sure, just ring 0345 464 0079 or drop us an email and we’ll give you a straight answer.
What we seal
- Copings & trims
- Concrete & block
- Joints between brick and frames
- Façade panels
- Render & cladding joints
- Brickwork movement joints
Why it’s worth doing now in Maltman's Hill
A properly done movement joint is an even line in a colour that suits the wall. A hurried job with smeared edges and no backing looks worse and fails sooner so it’s worth doing right. Where a wall is exposed, as many are in small places like Maltman's Hill, wind-driven rain gets into any failed joint, and damp in older walls is slow to dry out.
We do not show prices on the website, because each job is priced on what it involves. Call for a quick quote and we’ll talk you through it.
Why choose Mr Mastic in Maltman's Hill
- ARBOMaster approved applicator
- White, clear, grey or coloured to suit, where the product allows
- Homes, businesses and hotels
- Old sealant always removed completely
Take a look at what affects the cost or what customers say.
How the visit works
The work is kept neat and contained to the joints we are treating, so you can get on with your day. The job generally takes a few hours to a few days, depending on the length of joint and the access, and we tell you how long to leave it before we go. In a small place like Maltman's Hill, access is generally 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.
- We cut out the old mastic and rake out anything in the joint.
- The faces are brushed clean and primed where the product requires it.
- We fit closed-cell backing rod to control the depth.
- We apply the sealant, tool it and check the whole run.
Preparing for the visit
- Tell us about access, such as stairs, a lift or high-level joints
- Clear items away from the joints we are working on
- Let us know if you’ve seen damp or leaks
Getting a quote
A good description makes for an accurate quote. Let us know the location, the problem and roughly how many joints, and email pictures if that’s easy.
Advice
What we are called out for in Maltman's Hill
Weeds, moss and debris in a joint are a sign the sealant has gone. Dirt and roots then trap moisture in the joint and make things worse.
The most common problems we see are:
- Old sealant gone brittle and cracked
- Rigid filler in a joint that should flex
- Water getting into walls through failed joints
- Brick movement joints where the sealant has split
Rented homes near Pluckley station change hands often, and split movement joints are easy to miss on a rental until damp shows inside.
Before booking anyone
- How long to leave it before use
- How much experience the applicator has
- What preparation is included
- What happens if they find a problem under the old sealant
Walls and rooflines in Maltman's Hill
Historic houses like Godinton House (about 5 miles east) are a reminder that the area around Maltman's Hill 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. 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.
Godinton House, about 5 miles east, is one of the historic houses in the wider area around Maltman's Hill, and older homes nearby need a sealant that suits their walls.
Maltman's Hill is about 6 miles west of Ashford, in Kent. Our applicators cover external mastic for homes and businesses in Maltman's Hill and the surrounding area, as part of our work across Kent. Our Kent coverage runs to 922 places, Maltman's Hill among them. For nearby work, see our Crawley page.
Jobs for external mastic in TN27 is quoted and booked the same way as anywhere else. Nearby, we also carry out external mastic in Wissenden (1 mile south), Chambers' Green (1 mile east), Pluckley Thorne (2 miles north-east), Fir Toll (2 miles north-east) and Newland Green (2 miles north). Further out, we also cover Maidstone (11 miles north-west), Ashford (6 miles east), Sittingbourne (13 miles north), Faversham (13 miles north-east), Davington (13 miles north-east) and Foley Park (12 miles north-west).
Near you in Maltman's Hill
The closest station to Maltman's Hill is Pluckley station, roughly 1.2 miles east. Well-known places in the area include Romden Castle (0.7 miles south-west).
What the job involves on each surface
Joints between dissimilar materials
Each side of the joint may need its own preparation. Both surfaces are cleaned and primed as the product requires.
Brickwork movement joints
Clay brickwork grows slightly over its life and moves with the weather. That movement goes into the joint, so the sealant in it must stay soft and stretchy.
Maltman's Hill questions
Is Maltman's Hill within the area you cover?
Yes, smaller places are covered as well as towns. Our work covers London and the South East. Just mention lanes, gates or anything else about the route when you book.
Can you do external mastic in Maltman's Hill?
Yes, Maltman's Hill is within the area we cover. We work across London and the South East. Just ring 0345 464 0079 or drop us an email with a few details of the job.
Will you leave a mess?
No. We protect the surfaces around the joints, and we clear up the old sealant and our materials before we leave.
Why is there a gap in my brick wall?
A movement joint is a planned break in the wall that absorbs expansion and shrinkage. It should be filled with flexible sealant, never mortar.
When will the joints need doing again?
It varies from wall to wall: sunny, exposed elevations and busy joints wear faster. A yearly look will tell you when they need doing. Every job carries our one-year guarantee.
Are you ARBOMaster approved?
Yes. We hold ARBOMaster approved applicator status, and we are fully insured.
When is the sealant fully cured?
Most sealants are touch-dry well before they’re fully cured. We will give you the cure time for the product we used.
Do you do commercial work?
Yes. We have worked for hotels, offices and other businesses and we’re fully insured.
Also near Maltman's Hill
Other services in Maltman's Hill
Looking after it afterwards
How long the joints last depends on use and care. We suggest:
- Keep soil, plants and ivy away from the joints
- Check external joints each spring
- Keep movement joints as flexible joints, not mortar
- Check the sealant is paintable before painting near it
Only paint over the joint if we have confirmed the sealant can take paint. Many exterior sealants are not designed to be painted.
Leave a failed movement joint and water keeps getting into the wall. Over time it can mean damp inside, stained render or frost-damaged brick.
