Kent · England
Bearsted External Mastic
External mastic for Bearsted and the surrounding area: the right sealant, proper preparation and a neat finish. Ask us for a quick quote.
- Sealant pulling away from one side of the joint
- Movement joints filled with mortar instead of sealant
- Old sealant gone brittle and cracked
External mastic in Bearsted, done properly
External mastic is a job where short cuts show quickly. New sealant over old, joints packed with mortar and beads with no backing rarely last long. We strip the joint back and start again. We work on concrete & block, brickwork movement joints and façade panels, and people most often call us about leaking joints around cladding and façade panels and rigid filler in a joint that should flex.
Homes around Bearsted range from older cottages to newer houses, with walls and rooflines of every type. Older gutters and trims need their joints resealed; newer brick and render need their movement joints kept sound.
Every job comes with a one-year guarantee.
- Place
- Bearsted (ME14, ME15)
- Region
- Kent
- Cover
- 12 months on all our work
- Quote
- Quoted before any work starts
- Telephone
- 0345 464 0079
- Updated
- 26 October 2026
Work for landlords, hotels and businesses
We also work for businesses, from offices to washrooms and kitchens. For commercial premises, we can talk through working times when we quote.
Letting agents and landlords in Bearsted can book us as well as homeowners. Resealing between tenancies keeps a property looking cared for.
Nearby places to Bearsted
Also in Bearsted
Bearsted questions
Can you do external mastic in Bearsted?
Yes. We work across London and the South East, and Bearsted is part of that. Just ring 0345 464 0079 or email us with a few details of the job, and we’ll give you a clear price.
I let a flat near Bearsted station. Can you help?
Yes, rental work is part of what we do. You can ring 0345 464 0079 or email us with the address and a few details, and we will give you a fixed price before we start.
Where is Mr Mastic based?
We are based in Crawley, West Sussex, and we cover South East England, London and all of Scotland.
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. Bigger jobs take longer.
Do you have insurance?
Yes. We are fully insured, and we’ve been doing sealant work for more than 20 years.
Which products do you use?
Each joint gets the product that suits it. Movement, water and weather all affect the choice, and we will explain our choice.
Do you seal joints where cladding meets other materials?
Yes. The old joint is removed, both surfaces cleaned and primed where needed, and a flexible sealant applied. The colour is chosen to suit.
Will you leave a mess?
Very little: the area around the joints is protected first, and we tidy up before we go.
Why act early in Bearsted
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, rather than the wall around it. In a smaller place like Bearsted, wherever a wall is exposed, a failed outside joint is a real source of damp. Indoors, a failed seal lets water into floors and panels as it would anywhere.
The cost depends on the size of the job, how hard the old material is to remove and access to the work. We give a clear quote before any work starts.
Why us?
- Anti-fungal sanitary silicone in wet areas
- 180+ five-star Google reviews
- A sealant colour to suit the surroundings
- Every job guaranteed for a year
Looking after it afterwards
A little care helps the new joints last. Our advice:
- Point out the joints to other trades
- Act on the first splits you see
- Ask before painting over external sealant
- Wash walls gently around the 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 must stay as flexible joints, never rendered or pointed over.
A joint that has stopped moving pushes the movement elsewhere, often as cracks near the joint. Resealing it early helps prevent that.
How the job changes by surface
Render joints
The face of render can be soft, so a sealant that stretches easily protects the edges. We prime where the product needs it.
Joints between dissimilar materials
Where a frame or panel meets masonry, water often finds a way in. The old joint is removed and a sealant that bonds to both sides goes in.
Signs you need external mastic in Bearsted
Every building moves. Clay bricks expand slightly over their life, concrete and block shrink, and everything moves with temperature and wet. The sealant in the movement joints takes that strain.
If you can see any of these, it’s time to have the joints looked at:
- Rain getting behind render or cladding at a joint
- Failed sealant between panels on a façade
- Joints with sealant missing in places
- Rigid filler in a joint that should flex
Managing a site like Thurnham Church of England Infant School? Then larger buildings have long runs of movement joint that eventually need resealing.
Before you book anyone
- Whether they seal over old material or remove it
- Is VAT in the price?
- What guarantee comes with the work
- Who does the work, and how experienced they are
Walls and rooflines in Bearsted
London and the South East are among the drier parts of the UK, though outdoor sealant still has to go onto a dry joint, so the forecast decides the day. With historic houses such as Stoneacre (about 1.3 miles south) nearby, there’s older building stock in the area around Bearsted as well as newer homes. Where a home is older, older brick and stone need a sealant that suits them, at the right joint depth.
If you let a flat or house near Bearsted station, failed wall and movement joints let damp in, so they’re worth checking between tenancies. Homes close to Holy Cross Church include some older properties, and the joints between older walls, newer extensions and the roofline need a sealant that can move.
Bearsted is about 2 miles east of Maidstone, in Kent. If you need external mastic in Bearsted, please phone 0345 464 0079 or drop us an email for a quick quote. We are based in Crawley and cover Kent, Bearsted included. 922 places in Kent are on our list. There’s also a page for Chelmsford, roughly 32 miles from Bearsted.
Jobs for external mastic in ME14 and ME15 works the same way as everywhere else we cover. Whether your property is on The Street, Tower Lane and Roseacre Lane or a nearby road, we can help. Neighbouring places we cover for external mastic include Weavering (1 mile west), Grove Green (1 mile north-west), Caring (1 mile south-east), Thurnham (1 mile north-east) and Willington (2 miles south-west). Larger places within reach include Sittingbourne (9 miles north-east), Gravesend (14 miles north-west), Tonbridge (14 miles west), Faversham (14 miles east), Northfleet (15 miles north-west) and Minster (14 miles north-east).
Local landmarks in Bearsted
We work in homes and buildings around Mote Park, Valley Park School and The Kentish Yeoman pub and the streets around them. There’s a railway station in Bearsted itself: Bearsted station. A little further out are KIMS hospital (1.2 miles north-west) and The Mall Maidstone (2 miles west). The countryside around Bearsted includes Detling Hill.
What we cannot put right
It helps to know what we cannot do too:
- Render that’s blown, hollow or coming away
- Damp that is not coming from the joint
- Structural movement, which needs a surveyor or engineer
Not sure which it is? You can call 0345 464 0079 or send us an email and we will tell you honestly.
Joints and surfaces we work on
- Joints between brick and frames
- Brickwork movement joints
- Façade panels
- Render & cladding joints
- Concrete & block
- Copings & trims
The process
All our tools and materials come with us in the van, so there’s nothing for you to buy. Once we’ve agreed what’s being done, the area is protected and the work begins. Most jobs take anything from a few hours to several days, depending on the building. In a smaller place like Bearsted, parking is seldom the issue; lanes, gates and long drives are worth mentioning. For outside work, side access and the height of the joints help us plan.
- First, the joints are inspected and the access agreed.
- We cut out the old mastic and rake out anything in the joint.
- 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.
Getting ready for the visit
- Let us know about earlier repairs to the joints
- For indoor joints, keep the area dry beforehand if you can
- Keep pets and children clear of the area while we work
Get a quote
A good description makes for an accurate quote. Tell us where the job is, what’s wrong and how much there is.