Kent · England
External Mastic in Staplehurst
External mastic for Staplehurst and the surrounding area: the right sealant, proper preparation and a neat finish. Call for a quick quote.
- Water getting into walls through failed joints
- Hard, crazed mastic that has stopped moving
- Failed sealant between panels on a façade
External mastic in Staplehurst
Movement joints let brickwork, render and cladding expand and shrink without cracking. The sealant in it has to stretch and squeeze for years, so once it splits or hardens, the joint stops working and water gets in. If you have sealant pulling away from one side of the joint and damp patches traced to an open external joint, we can put it right, on façade panels, brickwork movement joints and copings & trims alike.
Houses in smaller places like Staplehurst can stand more in the open than those in a built-up town, and walls and rooflines facing the weather take the worst of it. Joints on those sides are usually the first to go.
You are covered for a year from the day we finish. If anything is not right with it, ring 0345 464 0079 or send us an email.
- Place
- Staplehurst (TN12)
- Wider area
- Kent
- Guarantee
- One year on every job
- Price
- Quoted before any work starts
- Phone
- 0345 464 0079
- Last updated
- 26 October 2026
What sealant work cannot fix
A few problems are outside what sealant work can do:
- Failed render or damaged cladding panels
- Walls that need new movement joints cut into them
- Rising or penetrating damp from elsewhere in the wall
If in doubt, ring 0345 464 0079 or send us an email and we will say what we think.
Where we work in Staplehurst
- Brickwork movement joints
- Concrete & block
- Render & cladding joints
- Copings & trims
- Façade panels
- Joints between brick and frames
Common problems we fix in Staplehurst
Using the wrong sealant is another common reason. A stiff, general-purpose sealant can’t cope with a joint that moves a lot, and it tears off the sides.
Keep an eye out for any of the following:
- Weeds or debris growing in open joints
- Failed seals between different materials
- Rigid filler in a joint that should flex
- Failed sealant between panels on a façade
For site and facilities teams at buildings such as Staplehurst School, movement joints, cladding joints and gutters on larger buildings need the same care as a house’s.
Comparing quotes
- Which sealant they’ll use, and why
- Is the old sealant removed completely?
- Are they insured?
- How the joint is cleaned and prepared
What happens on the day
Every visit runs the same way: we check the joints, protect the area around them, do the work and clear up. It normally takes a few hours for a handful of joints, longer for a whole elevation. For a job in Staplehurst, we agree the time, the access and parking before the day. If the work is outside, the weather plays a part, as sealant needs a dry surface.
- We start by walking round the building and agreeing the joints and the access.
- 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.
- We fit closed-cell backing rod to control the depth.
- The exterior sealant is applied, tooled and checked along its length.
How to prepare
- Mention if the joints have been sealed before
- Mention any parking rules near the property
- For indoor joints, keep the area dry beforehand if you can
How to get a quote
If you’re in Staplehurst and need external mastic, phone 0345 464 0079 or drop us an email. Tell us what the problem is and where, and you will get a clear quote before any work starts.
Advice
Outside joints around Staplehurst
Compared with the north and west, the South East gets less rain, though outdoor sealant still has to go onto a dry joint, so the forecast decides the day.
Letting a property close to Staplehurst station? Then failed wall and movement joints let damp in, so they’re worth checking between tenancies. For an older house near a landmark such as All Saints Church, old and new materials meet at the roofline and walls, which is where sealant earns its keep.
Staplehurst is about 7 miles south of Maidstone, in Kent. Staplehurst gets the same service as everywhere we cover: old sealant removed completely, careful preparation and a 12-month guarantee. Our area takes in 922 places across Kent. Crawley is on our list too, around 32 miles away.
Here we cover the TN12 postcode area for external mastic. Whether your property is on Station Road, High Street and North Down or anywhere close by, we can help. Nearby, we also carry out external mastic in Hawkenbury (1 mile north-east), Marden Thorn (2 miles west), Cross-at-Hand (2 miles north), Wanshurst Green (2 miles north-west) and Sinkhurst Green (2 miles south-east). We also work in nearby towns such as Maidstone (7 miles north), Ashford (14 miles east), Sittingbourne (15 miles north-east), Royal Tunbridge Wells (12 miles west), Tonbridge (12 miles west) and Kings Hill (10 miles north-west).
Local landmarks in Staplehurst
Typical jobs here are in homes near The Railway Tavern and the streets around them. Staplehurst has its own railway station: Staplehurst station. A little further out are Brattle Farm Museum (1 mile south-west) and Sissinghurst Castle (3.7 miles south).
Quotes for external mastic in Staplehurst
The price is agreed before any work begins. It’s based on:
- How many areas need sealing
- Working hours on commercial sites
- How much old sealant there is and how hard it is to remove
- The amount of work
Leaving a failed joint normally makes the job bigger, not smaller, as water and mould keep getting in. If you are unsure, ring 0345 464 0079 or email us and we’ll give you an honest view and a quote.
What we need to know
To make quoting easier, please include:
- The problem you’ve noticed
- Pictures of the joints, sent by email
- Access, such as stairs, a lift or height
- The address or postcode of the job
To get a quote, call 0345 464 0079 or send us an email and tell us where the job is and what the problem looks like. You will have a clear quote before we start.
Towns and villages near Staplehurst
What else we do in Staplehurst
Leave it or put it right?
A failed movement joint lets water into the wall and can run behind render or cladding. Resealing early keeps the job to the joint itself, instead of the wall and finishes around it. Homes in smaller places like Staplehurst can face more weather, and failed outside joints let damp into walls. Inside, a split seal lets water into floors and panels just as it would anywhere.
What it costs depends on the amount of work, how hard the old material is to remove and access to the work. We give a clear quote before we start, so you know where you stand.
Why choose Mr Mastic in Staplehurst
- We’re fully insured
- More than 20 years in sealant work
- Anti-fungal silicone where joints get wet
- Any old sealant cut out fully, not covered over
See our cost guide and our reviews.
How the job changes by surface
Copings and trims
Metal and stone copings both move with temperature, so a flexible sealant suits them best in all weathers.
Render joints
Rendered walls have joints at beads, openings and changes of material. They’re resealed in a sealant that suits the render.
Questions from Staplehurst
Is Staplehurst 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.
Do you cover Staplehurst for external mastic?
Yes. Our work covers London and the South East, and Staplehurst is part of that. You can ring 0345 464 0079 or drop us an email and tell us what needs doing, and we will give you a clear quote.
How long does external mastic last?
That depends on the wall, the weather and the movement. Signs to watch for are cracking, hardening and gaps at the edges and have them redone then.
How long does external mastic take?
Most jobs take a few hours to a few days, depending on the length of joint and the access, including preparation and clearing up. Your quote will say how long we expect yours to take.
Do you have insurance?
Yes, we’re fully insured.
What does external mastic cost?
The cost depends on the size of the job, access and how much old sealant has to come out. Call for a quick quote and we will talk you through it.
Where do you work from?
Our base is Crawley, with over 20 years’ experience. Our area covers South East England, London and Scotland.
Will the old sealant be removed?
Yes. All of the old material is cut out and the joint cleaned.
Work for landlords, hotels and businesses
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.
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.