Kent · England
Cranbrook Common External Mastic
Professional external mastic in and around Cranbrook Common, with old sealant always removed completely.
- Failed seals between different materials
- Hard, crazed mastic that has stopped moving
- Movement joints filled with mortar instead of sealant
How to look after the new joints
Looking after new joints is easy, and it makes a real difference:
- Keep high-pressure jets off the joints
- Act on the first splits you see
- Make sure movement joints are not pointed over
- Ask before painting over external sealant
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.
Leaks behind façade panels and render often go unseen. By the time there’s a damp patch, the damage can be well established, so it’s worth resealing at the first signs.
External mastic for homes and businesses in Cranbrook Common
On houses, flats and commercial buildings across Cranbrook Common, we reseal joints in brickwork, render, cladding and façade panels. Every joint gets the same careful preparation: clean, sound faces and a controlled depth. We work on brickwork movement joints, façade panels and concrete & block, and the jobs we see most are movement joints filled with mortar instead of sealant and gaps where render, brick and frames meet.
Around Cranbrook Common, older buildings can be stone, brick or timber-framed, many with extensions added later. The joints where those materials meet are the weak points.
You’re covered for a year from the day we finish. If there’s a problem with it, please phone 0345 464 0079 or send us an email.
- Where
- Cranbrook Common (TN17)
- Region
- Kent
- Cover
- 12 months on all our work
- Quotes
- A clear quote up front
- Call
- 0345 464 0079
- Page updated
- 26 October 2026
Quotes for external mastic in Cranbrook Common
The price is agreed before any work begins. It’s based on:
- Whether old sealant or filler has to be cut out
- The type of sealant required
- Whether there’s mould to deal with
- The number and length of the joints
Doing several joints on one visit is normally more efficient than separate visits, so tell us about everything that needs sealing. You will get one clear quote for the whole job.
What we need to know
Photos by email are helpful but not essential. Please mention:
- Access, such as stairs, a lift or height
- What the problem is, such as mould, gaps, leaks or cracking
- Roughly how big the job is
- Pictures of the joints, sent by email
Need a quote? Please call 0345 464 0079 or send us an email and tell us about the job. We will explain what we’d do and send you a clear quote before any work starts.
What sealant work cannot fix
We’d rather tell you now than do work that won’t last, so here’s what sealant cannot put right:
- Loose or hollow render, which needs re-rendering
- Damp that isn’t coming from the joint
- Cracks in the bricks or render themselves, away from the joints
If in doubt, call 0345 464 0079 or drop us an email and we will say what we think.
Surfaces we seal
- Joints between brick and frames
- Render & cladding joints
- Brickwork movement joints
- Façade panels
- Copings & trims
- Concrete & block
Nearby places to Cranbrook Common
What else we do in Cranbrook Common
When to call us in Cranbrook Common
Buildings move more than people expect. Clay bricks expand slightly over their life, concrete and block shrink, and everything moves with temperature and wet. All of that ends up in the joint sealant.
Any of these means the joints need attention:
- Joints pointed up with cement by mistake
- Cracked joints where brick meets render or frames
- Joints where the bead has come unstuck
- Moss and dirt in joints with no sealant left
Rented homes near Staplehurst station change hands often, and failed wall and movement joints let damp in, so they’re worth checking between tenancies.
Comparing quotes
- What the quote includes, VAT included or not
- Who turns up on the day
- What preparation is included
- Which sealant they’ll use, and why
Work for landlords, hotels and businesses
Businesses can book us for washrooms, kitchens, offices and more. On commercial sites, working times can be discussed when we quote.
Hotels need rooms back in use, so we plan the work room by room around your bookings where we can. Hotel work is part of what we do, alongside homes and businesses.
Different surfaces, different methods
Joints between dissimilar materials
Each side of the joint may need its own preparation. We prepare both faces so the sealant bonds properly.
Render joints
Render is weaker at the surface than brick, so a sealant that stretches easily protects the edges. We prime where the product needs it.
Outside joints around Cranbrook Common
The South East is one of the drier parts of the UK, but outside sealant still needs a dry, clean surface, so outdoor work is planned around the forecast.
If you live in an older home near Church of the Holy Trinity, older walls, gutters and the joints where extensions meet them need a flexible sealant. Managing a site like Cranbrook School? Then its movement joints, gutters and trims need looking after like any other building’s.
Cranbrook Common is about 10 miles south of Maidstone, in Kent. For external mastic in and around Cranbrook Common, it’s easy to get a quote: please phone 0345 464 0079 or send us an email. We are based in Crawley and cover Kent, Cranbrook Common included. Cranbrook Common is one of 922 towns and villages in Kent we cover for external mastic. We also work in Crawley, about 32 miles from Cranbrook Common.
We work across the TN17 postcode area for external mastic and the streets around it. Nearby, we also carry out external mastic in Sissinghurst (1 mile south), Wilsley Pound (1 mile south-west), Knox Bridge (1 mile north), Wilsley Green (2 miles south-west) and Frittenden (2 miles north-east). Further out, we also cover Maidstone (10 miles north), Ashford (13 miles east), Royal Tunbridge Wells (13 miles west), Tonbridge (13 miles north-west), Kings Hill (12 miles north-west) and Foley Park (11 miles north).
Landmarks near Cranbrook Common
We work in homes and buildings around The Bull Public House and the streets around them. For rail, the closest station is Staplehurst station, about 3.5 miles north. A little further out are Sissinghurst Castle (1 mile east) and Sissinghurst Castle (1 mile east).
How the visit works
When we arrive, we look over the joints with you first, so you know exactly what we’re doing. We protect the surfaces around the joints before work begins. The work usually takes anything from a few hours to several days, depending on the building. For a village or hamlet like Cranbrook Common, the journey is planned in advance: 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.
- First, the joints are inspected and the access agreed.
- Every bit of old sealant and any mortar or debris is cut out.
- Joint faces are cleaned back and primed if the sealant needs it.
- Backing rod sized to the joint goes in to set the depth.
- We apply the sealant, tool it and check the whole run.
Before we arrive
- Mention any tricky access
- Clear the area around the work
- Mention any sign-in or site rules at work premises
Ask for a quote
Every job is quoted individually, so start by telling us what you need. Just call 0345 464 0079 or send us an email with the details and send pictures if you have them.
Read more
Cranbrook Common questions
Do you cover Cranbrook Common for external mastic?
Yes. Our work covers London and the South East, and Cranbrook Common is part of that. You can call 0345 464 0079 or send us an email and let us know what needs doing, and we’ll send you a clear quote.
I let a flat near Staplehurst station. Can you help?
Yes, rental work is part of what we do. You can ring 0345 464 0079 or send us an email with the address and a few details, and we will give you a fixed price before we start.
How much does external mastic cost in Cranbrook Common?
The cost depends on the size of the job, access and how much old sealant has to come out. Ask us for a quote and we’ll talk you through it.
What’s an expansion joint in brickwork?
Walls move with heat, cold and moisture, and planned joints take up that movement. The gap is sealed with a flexible sealant over backing rod.
Should I point up the gap in my brickwork?
No. Rigid materials can’t move with the wall, so the joint stops doing its job. If it has already been filled, we can normally cut it out and reseal it.
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 phone 0345 464 0079 or send us an email.
Can you work on commercial sites?
Yes. Larger jobs can be planned room by room or area by area.
Do you hold any approvals?
Yes. We hold ARBOMaster approved applicator status, and we are fully insured.