Kent · England
External Mastic in Troy Town
Sealing brickwork movement joints, render, cladding and façade joints for homes and businesses in Troy Town and across Kent. ARBOMaster approved applicators, fully insured, with a one-year guarantee.
- Rain getting behind render or cladding at a joint
- Plants rooting in failed movement joints
- Movement joints filled with mortar instead of sealant
How we handle external mastic in Troy Town
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, joints between brick and frames and copings & trims, and the jobs we see most are old sealant gone brittle and cracked and brick movement joints where the sealant has split.
Around Troy Town, older buildings can be stone, brick or timber-framed, many with extensions added later. Where one material meets another is where water usually gets in.
We stand behind the work with a 12-month guarantee, so you are not left on your own once the job is done.
- Place
- Troy Town (TN8)
- Wider area
- Kent
- Cover
- 12 months on all our work
- Quotes
- A clear quote up front
- Telephone
- 0345 464 0079
- Last updated
- 26 October 2026
Troy Town buildings and the weather
Historic houses like Chartwell (about 2.7 miles north-east) are a reminder that the area around Troy Town has older buildings as well as new. Where a home is older, older brick and stone need a sealant that suits them, at the right joint depth. 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 Edenbridge station change hands often, and outside joints that have cracked can let damp into a rental, so check them between lets.
Troy Town is about 6 miles north of East Grinstead, in Kent. From the centre of Troy Town to the outskirts, we cover external mastic for every kind of property, from flats and houses to offices and hotels. Across Kent, we cover 922 places, Troy Town among them. Our Crawley page covers work nearby.
We cover every part of TN8 for external mastic. Nearby, we also carry out external mastic in Marlpit Hill (1 mile east), Edenbridge (1 mile south-east), Mowshurst (1 mile east), Merle Common (2 miles north-west) and Crockham Hill (2 miles north-east). Larger places within reach include Sevenoaks (8 miles north-east), Royal Tunbridge Wells (11 miles south-east), Tonbridge (10 miles east), Swanley (14 miles north-east), Paddock Wood (15 miles east) and Southborough (10 miles south-east).
Local landmarks in Troy Town
In Troy Town, that means homes and buildings near The Swan pub. The closest station to Troy Town is Edenbridge station, roughly 0.9 miles south-east of the centre. A little further out are Tandridge Priory (2.8 miles north) and Haxted Watermill Museum (1.7 miles south). Open spaces near Troy Town include Botley Hill.
What else we do in Troy Town
What we can’t put right
To be straight with you, there are a few things sealant won’t fix:
- Rising or penetrating damp from elsewhere in the wall
- Failed render or damaged cladding panels
- Cracked brickwork or render that needs a builder or plasterer
If in doubt, ring 0345 464 0079 or email us and we will say what we think.
Where we work in Troy Town
- Render & cladding joints
- Copings & trims
- Façade panels
- Brickwork movement joints
- Concrete & block
- Joints between brick and frames
DIY sealant or a professional job?
Some jobs are best left to a professional: work at height, external movement joints, fire-rated sealant and large areas call for the right materials, safe access and experience.
Sealing over old silicone is the commonest DIY error. New silicone won’t bond to old, so it peels away and traps moisture behind it. All the old material has to come out first.
How we quote for external mastic
Every job gets its own quote. These are the things that affect it:
- The size of the job
- Working hours on commercial sites
- How easy the joints are to reach
- How many rooms, windows or areas are involved
Doing several joints on one visit is normally more efficient than separate visits, so it’s worth mentioning everything you’d like done. We will give you a clear price for the lot.
Helping us quote
Photos help, but a description is a good start. Try to tell us:
- Pictures of the joints, sent by email
- Any access issues, like height or stairs
- The type of property
- The rough size of the job
Want a quote for external mastic? Please phone 0345 464 0079 or send us an email and tell us about the job. You’ll know what we plan to do, and what it will cost, before any work begins.
How it works
There isn’t much for you to do on the day. Point us to the joints and we will get on with it. The job generally takes a few hours for a handful of joints, longer for a whole elevation, including the tidy-up. Somewhere as small as Troy Town, access is often the only tricky part. 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.
- Old sealant and any debris are cut and raked out.
- We clean both faces of the joint and prime them where the product calls for it.
- Closed-cell backing rod is fitted to set the depth and stop three-sided bonding.
- A flexible exterior sealant is applied and tooled in a colour to suit the wall.
Before we arrive
- Keep children and pets away from the work area
- Mention any tricky access
- Mention any leaks or damp you’ve noticed
Getting a quote
There’s no standard price list. Instead, your job gets its own clear quote. To get started, ring 0345 464 0079 or email us.
Read more
Troy Town: your questions answered
I let a flat near Edenbridge station. Can you help?
Yes, rental work is part of what we do. Just phone 0345 464 0079 or email us and tell us about the property, and we’ll send you a clear quote.
Do you cover smaller places like Troy Town?
Yes, we do. Our work covers London and the South East, from towns to the smallest places. Longer journeys are simply planned in advance.
How long will you be here?
A typical job takes 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 seal joints where cladding meets other materials?
Yes. Materials like render, brick, metal and uPVC all move differently, so the joint between them must be flexible. We choose one that suits both surfaces.
Do you hold any approvals?
Yes. Mr Mastic is an ARBOMaster approved applicator and we’re fully insured too.
What’s an expansion joint in brickwork?
A movement joint is a planned break in the wall that absorbs expansion and shrinkage. It should be filled with flexible sealant, never mortar.
Do you take out the old sealant first?
Always. Sealing over old sealant is the main reason resealing fails early, so we never do it.
Where do you work from?
Mr Mastic is based in Crawley. Our applicators cover Troy Town, along with the rest of our area.
Landlords, agents and businesses in Troy Town
We also work for property managers and facilities teams in Troy Town and across Kent. Several sites can be quoted together.
Letting agents and landlords in Troy Town can book us as well as homeowners. Resealing between tenancies keeps a property looking cared for.
When to call us in Troy Town
Buildings move more than people expect. Brickwork grows a little over the years, blockwork and concrete shrink, and all of it moves with heat and moisture. All of that ends up in the joint sealant.
The problems people usually mention when they call are:
- Sealant pulling away from one side of the joint
- Gaps where render, brick and frames meet
- Old sealant gone brittle and cracked
- Joints with sealant missing in places
Historic houses such as Chartwell, about 2.7 miles north-east, show how far back building around Troy Town goes.
What your quote should include
- What preparation is included
- When the joint can take water or movement
- Whether the sealant suits the joint
- Whether VAT is included
Keeping the joints in good condition
Looking after new joints is easy:
- Don’t let climbing plants root in the sealant
- Wash walls gently around the sealant
- Never let anyone fill a movement joint with mortar
- Check external joints each spring
Avoid pressure-washing straight into the joints. High-pressure water can lift the edges.
Act while the splits are small. Then it’s a straightforward cut-out and reseal.