Kent · England
Chilham External Mastic
Sealing brickwork movement joints, render, cladding and façade joints in Chilham, with a 12-month guarantee on every job. Call for a quick quote.
- Weeds or debris growing in open joints
- Movement joints with cracked, split or missing sealant
- Rain getting behind render or cladding at a joint
What we do, step by step
Good joint work is mostly preparation, so that’s where we spend the time. Every joint is cleaned and dried before new material goes in. In total, it usually takes anything from a few hours to several days, depending on the building. In a small place like Chilham, access is generally the main thing to plan. If the job is outside, mention outbuildings, exposed walls and how to reach them.
- We inspect the joints and agree which need resealing and how they’ll be reached.
- We cut out the failed sealant and rake out any dirt or growth.
- The joint faces are cleaned and primed where the sealant needs it.
- We push in closed-cell backing rod so the sealant is the right depth and bonds to the sides only.
- The new sealant, chosen to suit the brick or render, is applied and tooled to a neat finish.
How to prepare
- Tell us about access, such as stairs, a lift or high-level joints
- Plan for the work area to be out of bounds to pets and children
- For business premises, tell us about site rules or sign-in
Getting a quote
There’s no standard price list, as no two jobs are quite the same. Instead, your job gets its own clear quote. To get started, call 0345 464 0079 or send us an email.
Related advice
External mastic for homes and businesses in Chilham
On houses, flats and commercial buildings across Chilham, we reseal joints in brickwork, render, cladding and façade panels. Every joint gets the same careful preparation: clean, sound faces and a controlled depth. Common call-outs are for failed seals between different materials and joints with sealant missing in places, across copings & trims, façade panels and joints between brick and frames.
Somewhere as small as Chilham, homes and farm buildings often face open ground, 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.
All our work is covered by a one-year guarantee, wherever you are in Kent.
- Place
- Chilham (CT4)
- Region
- Kent
- Guarantee
- One year on every job
- Quote
- A clear price before any work starts
- Call
- 0345 464 0079
- Page updated
- 26 October 2026
Why deal with it now?
Sealing over the top of old mastic does not hold for long. New sealant doesn’t bond well to old, weathered sealant, so the old joint is cut out fully first. In a small place like Chilham, homes can be exposed to wind and rain, which finds any gap, and damp in older walls is slow to dry out.
Every job is a little different, so we quote each one individually. The number of joints, how easy they are to reach and the sealant needed all make a difference, and we will explain the quote if you ask.
Why Chilham clients choose us
- White, clear, grey or another colour, product permitting
- Experience in homes, commercial sites and hotels
- Full insurance on every job
- More than 20 years in sealant work
See how sealant jobs are priced and our reviews.
Also in Chilham
Chilham: your questions answered
Do you cover smaller places like Chilham?
Yes. Chilham is within the area we cover, which takes in towns, villages and rural addresses. Our work covers London and the South East. Just mention lanes, gates or anything else about the route when you book.
I let a flat near Chilham station. Can you help?
Yes, we work for landlords and letting agents. You can call 0345 464 0079 or send us an email with the address and a few details, and we will give you a fixed price before any work starts.
How long does external mastic take?
As a guide, most jobs take a few hours to a few days, depending on the length of joint and the access. Larger jobs naturally take longer, and we will tell you how long to expect.
Can you work on commercial sites?
Yes, regularly. Larger jobs can be planned room by room or area by area to suit the site.
Are you an approved applicator?
Yes. Mr Mastic is an ARBOMaster approved applicator, and we are fully insured.
Are you insured?
Yes. We are fully insured, and we can confirm the details when we quote.
How often do external joints need resealing?
There’s no fixed answer: sunny, exposed elevations and busy joints wear faster. Check them each year and reseal when they split or harden. Our work comes with a 12-month guarantee.
How long before the joint can be used?
Many sealants skin over quickly but take longer to cure fully. We will give you the cure time for the product we used before we leave.
Honest limits
Some problems need a builder, plumber or other trade rather than us:
- Damp that is not coming from the joint
- Subsidence or other structural problems
- Cutting new joints into brickwork, which is building work rather than sealant work
If in doubt, call 0345 464 0079 or email us and we will say what we think before booking.
Surfaces we seal
- Concrete & block
- Copings & trims
- Render & cladding joints
- Joints between brick and frames
- Brickwork movement joints
- Façade panels
What affects the quote in Chilham
Some jobs are bigger than they look, and some smaller. What affects the quote:
- The old material and how stubborn it is
- Whether the work is at height
- The amount of work
- Working hours on commercial sites
The cost depends on the size of the job, how much old material has to come out and how easy the joints are to reach. You will have a clear quote before any work starts, so you know where you stand.
Helping us quote
You do not need to know the technical terms. Just tell us:
- The type of property
- If someone has resealed it before
- Roughly how big the job is
- A few pictures by email, if you can
For a quote, call 0345 464 0079 or send us an email and tell us where the job is and what the problem looks like. We’ll send you a clear quote before any work starts.
Do you need external mastic in Chilham?
Sunlight, wet weather and frost wear exterior sealant down. Over the years it hardens, cracks on the surface and loses its give, so the joint eventually tears or comes away from one side.
It’s worth asking for a quote if you see:
- Damp patches traced to an open external joint
- Leaking joints around cladding and façade panels
- Joints where the bead has come unstuck
- Brick movement joints where the sealant has split
In the older streets around Church of St Mary, older walls, gutters and the joints where extensions meet them need a flexible sealant.
Comparing quotes
- Who does the work, and how experienced they are
- What product goes in the joint
- How hidden problems are handled
- How the joint is cleaned and prepared
What the job involves on each surface
Cladding and façade panels
Cladding and façade panels are generally separated by sealed joints. We reseal them with a sealant suited to the panel material.
Brickwork movement joints
Clay brickwork grows slightly over its life and moves with the weather. The movement joint takes that up, so its sealant has to stay flexible.
External mastic in Chilham: local notes
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.
Rented homes near Chilham station change hands often, and failed wall and movement joints let damp in, so they’re worth checking between tenancies.
Chilham is about 5 miles south-west of Canterbury, in Kent. If you need external mastic in Chilham, please ring 0345 464 0079 or drop us an email for a quick quote. We cover Kent from our Crawley base, Chilham included. 922 places in Kent are on our list, from the larger towns to small villages. Our Chelmsford page covers work nearby.
Work in CT4 is quoted and booked the same way as anywhere else. You’ll find streets such as The Street, The Square and Bagham Road, and we cover them all. Other places close to Chilham include Mountain Street (1 mile south-west), Old Wives Lees (1 mile north), Godmersham (2 miles south), Shottenden (2 miles west) and Perrywood (2 miles north-west). Larger places within reach include Ashford (8 miles south-west), Canterbury (5 miles north-east), Sittingbourne (12 miles north-west), Folkestone (14 miles south-east), Whitstable (8 miles north) and Faversham (6 miles north-west).
Local landmarks in Chilham
Typical jobs here are in homes near Woolpack Inn and Broadham Down. Chilham has its own railway station: Chilham station. Nearby you’ll also find Kent and Canterbury Hospital (5.3 miles east) and Chilham Castle (within half a mile west). The countryside around Chilham includes Blean Woods RSPB Reserve.
Looking after it afterwards
Looking after new joints is easy:
- Have failed joints looked at early
- Keep water from gutters off the wall
- Leave the joints unpainted unless we’ve said otherwise
- Never let anyone fill a movement joint with mortar
If you have more work done on the wall, such as new render, cladding or an opening, show the contractor the movement joints. They should be kept open and resealed, not filled.
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, all bigger jobs than a reseal.