East Sussex · England
External & façade joints in Coleman's Hatch, East Sussex
Movement joints in Coleman's Hatch need attention? We remove the old material, prepare the joints and seal them properly, with a one-year guarantee.
- Water getting into walls through failed joints
- Cracked joints where brick meets render or frames
- Joints with sealant missing in places
What the job involves on each surface
Joints between dissimilar materials
Different materials may need different primers. Both surfaces are cleaned and primed as the product requires.
Cladding and façade panels
Panels heat up and cool down quickly, so the joint sealant has to cope with frequent movement. The sealant is chosen with that in mind.
External mastic in Coleman's Hatch, done properly
External mastic is a job where short cuts show quickly. Overfilled joints, missing backing rod and sealant laid over old sealant rarely last long. We take the old material out and do it properly. If you are dealing with joints with sealant missing in places and movement joints filled with mortar instead of sealant, we can put it right, on joints between brick and frames, concrete & block and copings & trims alike.
Older homes in small places like Coleman's Hatch may be stone, brick or timber-framed, often with later extensions. The joints where those materials meet are the weak points.
A one-year guarantee comes with the work, just as it does everywhere we cover.
- Location
- Coleman's Hatch (TN7)
- Wider area
- East Sussex
- Cover
- 12 months on all our work
- Price
- A clear price before work begins
- Phone
- 0345 464 0079
- Updated
- 26 October 2026
Places near Coleman's Hatch
Other services in Coleman's Hatch
Coleman's Hatch: your questions answered
Do you cover Coleman's Hatch for external mastic?
Yes, Coleman's Hatch is within the area we cover. Our work covers London and the South East. You can ring 0345 464 0079 or email us and tell us what needs doing, and we will give you a clear price.
Can you help a landlord with a rental near East Grinstead station?
Yes, rental work is part of what we do. Just phone 0345 464 0079 or send us an email and tell us about the property, and we will send you a clear quote.
Can I do it myself?
Some simple jobs can be done by a careful DIYer. The usual mistakes are sealing over old sealant, sealing a damp joint and using too much.
When is the sealant fully cured?
Cure times vary by product and the conditions. Before we leave, we’ll tell you the cure time.
How long does the job take?
It depends on the size of the job, but as a guide it takes anything from a few hours to several days, depending on the building. We will give you a better idea when we quote.
Can you match the colour of my brickwork?
We aim for a joint that suits the wall rather than one that jumps out. Colour is agreed with you before we begin.
Is the work guaranteed?
Yes, always. There’s a 12-month guarantee on every job, large or small.
Are you insured?
Yes. We are fully insured for domestic and commercial work.
What we’re called out for in Coleman's Hatch
Sunlight, wet weather and frost wear exterior sealant down. Over the years it hardens, cracks on the surface and loses its give, so the joint eventually tears or comes away from one side.
Signs it’s time to call us include:
- Brick movement joints where the sealant has split
- Leaking joints around cladding and façade panels
- Movement joints filled with mortar instead of sealant
- Rain getting behind render or cladding at a joint
Homes close to Holy Trinity Church include some older properties, and the joints between older walls, newer extensions and the roofline need a sealant that can move.
Before you book anyone
- Who does the work, and how experienced they are
- Is VAT in the price?
- What the cure time is
- What insurance they hold
Quotes for external mastic in Coleman's Hatch
You will get a clear quote before any work starts. It takes into account:
- The amount of work
- How much old sealant there is and how hard it is to remove
- Whether there’s mould to deal with
- Access and height
No two jobs are quite the same, so we quote each one individually. The number of joints, how easy they are to reach and the sealant needed all make a difference.
What to tell us for a quote
Before you ask for a quote, have a think about:
- Where the property is
- What’s wrong with the joints now
- If it’s domestic, commercial or a hotel
- How many joints, rooms or windows are involved
For a quote, ring 0345 464 0079 or drop us an email with the location and a short description of the problem. You will have a clear quote before we start.
Honest limits
Some problems need a builder, plumber or other trade rather than us:
- Failed render or damaged cladding panels
- Damp from another source, such as a leaking gutter or a bridged damp-proof course
- Cracks in the bricks or render themselves, away from the joints
Not sure which it is? You can phone 0345 464 0079 or drop us an email and we’ll tell you honestly before booking.
Where we work in Coleman's Hatch
- Façade panels
- Brickwork movement joints
- Render & cladding joints
- Concrete & block
- Joints between brick and frames
- Copings & trims
Can I do it myself?
Sealing over old silicone is the commonest DIY error. Silicone doesn’t stick to old silicone, so it lifts and traps water and mould underneath. Everything old must be removed first.
Overfilling a joint is a classic DIY mistake. A thick, smeared bead looks untidy and does not move well, and the joint depth matters as much as the finish.
How to look after the new joints
Aftercare is simple:
- Keep movement joints as flexible joints, not mortar
- Show decorators and builders where the movement joints are
- Avoid pressure-washing directly into sealant joints
- Have failed joints looked at early
Don’t let soil, plants or ivy build up against the new joints. Damp material against the sealant shortens its life.
Leave a failed movement joint and water keeps getting into the wall. Over time it can mean damp inside, stained render or frost-damaged brick.
What we do, step by step
We bring everything the job needs with us, so there’s nothing for you to buy. Once we have agreed what’s being done, the area is protected and the work begins. It normally takes a few hours to a few days, depending on the length of joint and the access. Somewhere like Coleman's Hatch needs a little journey planning: tell us about narrow lanes, gates, long drives and where we can park. We bring what the job needs, so it can be finished in one trip where possible.
- Each joint is checked and the colour of the new sealant agreed.
- Failed sealant is removed back to clean, sound faces.
- Backing rod goes in so the sealant can stretch between the two faces.
- Primer is applied wherever the sealant needs it.
- A low-modulus exterior sealant is gunned in and tooled to a neat finish.
How to prepare
- Let us know about parking restrictions
- Clear the area around the work
- Tell us about any previous sealing or DIY attempts
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, and email photos if that’s easy.
Advice
Walls and rooflines in Coleman's Hatch
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. Historic houses like Bassetts Manor (about 2.6 miles north-east) are a reminder that the area around Coleman's Hatch 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.
Rented homes near East Grinstead station change hands often, and failed wall and movement joints let damp in, so they’re worth checking between tenancies.
Coleman's Hatch is about 4 miles south-east of East Grinstead, in East Sussex. Whether you are in the middle of Coleman's Hatch or further out, external mastic is available for homes and businesses alike, from flats and houses to offices and hotels. Coleman's Hatch is one of 289 towns and villages in East Sussex we cover for external mastic. Our Crawley page covers work nearby.
Work in TN7 works the same way as everywhere else we cover. Streets in the area include Shepherds Hill and Parrock Lane. Close by, we work in Upper Hartfield (1 mile north-east), Forest Row (1 mile west), Wych Cross (2 miles south-west), Chelwood Gate (3 miles south-west) and Duddleswell (3 miles south). Within a short drive, we also cover Lewes (15 miles south), Crowborough (5 miles south-east), Uckfield (8 miles south), South Malling (15 miles south), Heathfield (12 miles south-east) and Southover (15 miles south).
What’s near Coleman's Hatch
In Coleman's Hatch, that means homes and buildings near The Hatch Inn, among other places. For rail, the closest station is East Grinstead station, about 4.6 miles north-west of the centre. Well-known places in the area include Queen Victoria Hospital (4.4 miles north-west) and Bolebroke Castle (2.9 miles north-east). Not far away are Brickfield Meadow.