Kent · England
External Mastic in Egerton Forstal
External mastic across Egerton Forstal and nearby, with old sealant always removed completely.
- Sealant pulling away from one side of the joint
- Moss and dirt in joints with no sealant left
- Movement joints filled with mortar instead of sealant
How we handle external mastic in Egerton Forstal
Joints between dissimilar materials, like brick against render or concrete against a steel frame, see movement from both sides. A flexible sealant bridges the two where a rigid filler would soon crack. We work on brickwork movement joints, façade panels and copings & trims, and people most often call us about hard, crazed mastic that has stopped moving and failed seals between different materials.
Older homes in small places like Egerton Forstal may be stone, brick or timber-framed, often with later extensions. The joints where those materials meet are the weak points.
You are covered for a year from the day we finish. If anything is not right with it, phone 0345 464 0079 or send us an email.

- Location
- Egerton Forstal (TN27)
- Wider area
- Kent
- Guarantee
- One year on every job
- Price
- A clear price before we start
- Call
- 0345 464 0079
- Last updated
- 26 October 2026
Walls and rooflines in Egerton Forstal
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.
Letting a property close to Pluckley station? Then outside joints that have cracked can let damp into a rental, so check them between lets. For an older house near a landmark such as Church of St James, older walls, gutters and the joints where extensions meet them need a flexible sealant.
Egerton Forstal is about 8 miles north-west of Ashford, in Kent. Our applicators cover external mastic for homeowners, landlords and businesses in Egerton Forstal and nearby. Our area takes in 922 places across Kent, large and small. We also work in Crawley, around 39 miles away.
We work across the TN27 postcode area for external mastic. If you need external mastic at a property on Forstal Road, Forge Lane and Chantlers Meadow or anywhere close by, our applicators can take on the job. If you’re just outside Egerton Forstal, we cover Potter's Forstal (1 mile north-west), Newland Green (1 mile south-east), Pembles Cross (1 mile north), Mundy Bois (1 mile east) and Egerton (1 mile north-east). Within a short drive, we also cover Maidstone (10 miles north-west), Ashford (8 miles south-east), Sittingbourne (11 miles north), Faversham (12 miles north-east), Kings Hill (14 miles north-west) and Davington (12 miles north-east).
Local landmarks in Egerton Forstal
For rail, the closest station is Pluckley station, about 2.6 miles south-east. Other landmarks nearby include Coldbridge Castle (1 mile north-west).
What sealant work cannot fix
To be straight with you, some problems need a different trade:
- Damp that is not coming from the joint
- Movement that’s more than a sealant joint can take
- Loose or hollow render, which needs re-rendering
If in doubt, phone 0345 464 0079 or drop us an email and we’ll say what we think before you book.
Joints and surfaces we work on
- Joints between brick and frames
- Concrete & block
- Façade panels
- Copings & trims
- Render & cladding joints
- Brickwork movement joints
Work for landlords, hotels and businesses
Businesses can book us for washrooms, kitchens, offices and more. For commercial premises, we can talk through working times when we quote.
Hotels need rooms back in use, so the work can be planned room by room. We’ve worked in hotels as well as homes and businesses.
Do you need external mastic in Egerton Forstal?
Some movement joints have been pointed up with mortar. The joint cannot move, so the wall cracks somewhere else instead.
Look out for these signs:
- Hard, crazed mastic that has stopped moving
- Water getting into walls through failed joints
- Brick movement joints where the sealant has split
- Rigid filler in a joint that should flex
For site and facilities teams at buildings such as Egerton Church of England Primary School, larger buildings have long runs of movement joint that eventually need resealing.
What your quote should include
- Which sealant they’ll use, and why
- How much experience the applicator has
- How the colour is chosen
- How the joint is cleaned and prepared
What happens on the day
At the end, we look at the finished work together. The visit itself normally takes anything from a few hours to several days, depending on the building, depending on how much there is to do. In a small place like Egerton Forstal, access is normally the main thing to plan. For outside work, also let us know about exposed walls and any outbuildings involved.
- We inspect the joints and agree which need resealing and how they’ll be reached.
- Old sealant and any debris are cut and raked out.
- Both sides are cleaned back to sound material and primed if needed.
- We push in closed-cell backing rod so the sealant is the right depth and bonds to the sides only.
- We gun in a flexible exterior sealant in a colour that suits the wall and tool it neatly.
Before we arrive
- Let us know if you’ve seen damp or leaks
- Keep pets and children clear of the area while we work
- For indoor joints, keep the area dry beforehand if you can
Getting a quote
The more we know about the job, the more useful the quote. Let us know the location, the problem and roughly how many joints.
Read more
Should I try it myself first?
A careful DIYer can reseal a simple joint, like a short, easy-to-reach joint indoors. The common mistakes are sealing over old sealant, sealing a damp joint and using far too much.
The biggest DIY mistake is sealing over old sealant. New silicone will not bond to old, so it lifts and traps water and mould underneath. Everything old must be removed first.
Places near Egerton Forstal
Other services in Egerton Forstal
Why act early in Egerton Forstal
Resealing a run of joints in one go is usually better than patching one at a time. They’ve weathered the same way. Older cottages and farmhouses around Egerton Forstal can have timber floors and frames, where water from a failed joint can cause rot if it’s left.
The cost reflects the work involved, not a rough estimate. That’s why we ask a few questions first and give you a clear price before any work starts.
Why book with us
- Full insurance on every job
- More than 20 years in sealant work
- Domestic, commercial and hotel work
- We never seal over old sealant
Aftercare tips
How long the joints last depends on use and care. We suggest:
- Ask before painting over external sealant
- Keep movement joints as flexible joints, not mortar
- Point out the joints to other trades
- Wash walls gently around the sealant
Give the sealant the cure time we tell you before anything rubs against it. Most exterior sealants skin fast but take longer to cure right through.
If you can see gaps, plants or bare sections in a joint, have it checked. Early work is quicker and leaves a better finish.
Your questions about external mastic in Egerton Forstal
Can you do external mastic in Egerton Forstal?
Yes. Our work covers London and the South East, and Egerton Forstal 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 give you a clear quote.
Can you help a landlord with a rental near Pluckley station?
Yes, we work for letting agents and landlords. Just call 0345 464 0079 or send us an email and tell us about the property, and we’ll give you a clear price.
Will the new joint stand out?
The sealant colour is picked to suit the wall so the joint blends in. There’s a wide choice of exterior colours.
Will there be a smell?
Some sealants have a smell while they cure. Opening a window helps.
Can a movement joint be filled with mortar?
No, not where the gap is a movement joint. Filling it with mortar defeats its purpose. A flexible sealant is the right fill.
Are you ARBOMaster approved?
Yes. We hold ARBOMaster approved applicator status, and we are fully insured.
Do you work at height?
It depends on the height and the site. Low-level joints are straightforward; for higher ones, send details and we will confirm the access.
Where is Mr Mastic based?
Mr Mastic is based in Crawley. Our applicators cover Egerton Forstal.
