West Sussex · England
External & façade joints in Snow Hill, West Sussex
Professional external mastic in and around Snow Hill, with old sealant always removed completely and a 12-month guarantee.
- Moss and dirt in joints with no sealant left
- Failed sealant between panels on a façade
- Movement joints filled with mortar instead of sealant
Honest limits
We’d rather tell you now than do work that will not last, so here’s what sealant cannot put right:
- Failed render or damaged cladding panels
- Cutting new joints into brickwork, which is building work rather than sealant work
- Structural movement, which needs a surveyor or engineer
If you are not sure, just ring 0345 464 0079 or drop us an email and we’ll give you a straight answer before booking.
Where we work in Snow Hill
- Façade panels
- Concrete & block
- Render & cladding joints
- Brickwork movement joints
- Copings & trims
- Joints between brick and frames
About our external mastic in Snow Hill
Joints in render and cladding are easy to overlook until a damp patch appears. We inspect them, agree which need doing and reseal with a weatherproof, flexible sealant. If you have cracked joints where brick meets render or frames and movement joints filled with mortar instead of sealant, we can help, on concrete & block, brickwork movement joints and render & cladding joints alike.
Around Snow Hill, older buildings can be stone, brick or timber-framed, many with extensions added later. The joints where those materials meet are the weak points, and they need the right sealant at the right depth.
We guarantee the work for a year. If there’s a problem with our work within the year, let us know and we’ll sort it.
- Where
- Snow Hill (RH10)
- Region
- West Sussex
- Cover
- One year on every job
- Quotes
- A clear quote up front
- Phone
- 0345 464 0079
- Updated
- 26 October 2026
Leave it or put it right?
Pointing a movement joint with mortar might seem a neat fix, but it stops the joint moving. The movement then cracks the brickwork or render nearby. A flexible sealant over backing rod is what the joint needs. In a small place like Snow Hill, homes can be exposed to wind and rain, which finds any gap, and older walls, once damp, take a long time to dry.
Combining jobs into one visit is generally more efficient than separate visits, so tell us about everything that needs sealing. You’ll get one clear quote for the whole job.
Why book with us
- 4.9 on Google from 180+ five-star reviews
- Any old sealant cut out fully, not covered over
- Quality sealants from Arbo and Everbuild
- Approved under the ARBOMaster scheme
Take a look at our cost guide and what customers say.
How to look after the new joints
Joint life depends on how it’s used and looked after. We suggest:
- Deal with leaking gutters that soak the joints below
- Don’t let climbing plants root in the sealant
- Look over the joints every year, ideally after winter
- Make sure movement joints are not pointed over
Keep pressure washers away from the sealant. A strong jet can damage the edges of the bead.
Leave a failed movement joint and water keeps getting into the wall. That can lead to damp patches, staining and frost damage which cost more to put right than the joint.
What we do, step by step
At the end, we look at the finished work together. The visit itself generally takes a few hours for a handful of joints, longer for a whole elevation, depending on the size of the job. Somewhere as small as Snow Hill, access is often the only tricky part. If the job is outside, mention outbuildings, exposed walls and how to reach them.
- We start by walking round the building and agreeing the joints and the access.
- We cut out the old mastic and rake out anything in the joint.
- The faces are brushed clean and primed where the product requires it.
- We fit closed-cell backing rod to control the depth.
- We apply the sealant, tool it and check the whole run.
How to prepare
- Tell us about any previous sealing or DIY attempts
- Move anything stored near the joints
- Let us know if you’ve seen damp or leaks
Getting a quote
We do not publish a price list, as no two jobs are quite the same. Instead, we send you a clear quote for your job. To get started, ring 0345 464 0079 or email us.
Read more
Common problems we fix in Snow Hill
A lot of failed joints come down to preparation: dusty or wet faces, no primer where one was needed, or old sealant left in. The sealant never bonds properly.
People usually contact us when they notice one of these:
- Failed sealant between panels on a façade
- Movement joints with cracked, split or missing sealant
- Sealant that has lost its bond to the brick or render
- Rigid filler in a joint that should flex
Saint Hill Manor, about 3.4 miles south-east, is one of the historic houses in the wider area around Snow Hill.
Before you book anyone
- Is the old sealant removed completely?
- Whether they’re fully insured
- What the cure time is
- What guarantee comes with the work
DIY sealant or a professional job?
Some sealant jobs are within reach of a careful DIYer, such as a straightforward joint indoors. The common mistakes are sealing over old sealant, sealing a damp joint and using far too much.
If you’ve already had a go yourself, that’s fine. We cut it out and start again, so just mention it when you contact us.
Also near Snow Hill
What else we do in Snow Hill
Walls and rooflines in Snow Hill
London and the South East are among the drier parts of the UK, yet outdoor joints still have to be sealed dry, so jobs are booked with the weather in mind. Historic houses like Saint Hill Manor (about 3.4 miles south-east) are a reminder that the area around Snow Hill 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.
If you let a flat or house near East Grinstead station, outside joints that have cracked can let damp into a rental, so check them between lets.
Snow Hill is about 3 miles west of East Grinstead, in West Sussex. We carry out external mastic for homeowners, landlords and businesses in Snow Hill and nearby, as part of our work across West Sussex. Snow Hill is one of 371 towns and villages in West Sussex where we work.
Every address in RH10 is within our area for external mastic, from the main roads to the quietest streets. If you need external mastic at a property on Snow Hill and Green Lane or anywhere close by, we can help. Nearby, we also carry out external mastic in Domewood (1 mile north-east), Furnace Wood (1 mile east), Crawley Down (1 mile south), Felbridge (2 miles east) and Newchapel (2 miles north-east). We also work in nearby towns such as Crawley (5 miles south-west), Horsham (11 miles south-west), Haywards Heath (10 miles south), Burgess Hill (13 miles south), East Grinstead (3 miles east) and Broadfield (6 miles south-west).
Landmarks near Snow Hill
In Snow Hill, that means homes and buildings near Imberhorne School and The Curious Pig in the Parlour pub. Snow Hill’s nearest station is East Grinstead station, roughly 3 miles east. Well-known places in the area include Effingham Park Motor Museum (under half a mile west) and Queen Victoria Hospital (3.7 miles east). Open spaces near Snow Hill include Hedgecourt Lake.
Surface by surface
Brickwork movement joints
Brick moves with heat and moisture, and grows a little over time. That movement goes into the joint, so its sealant has to stay flexible.
Concrete and blockwork
Wide joints in concrete need the depth controlling carefully. Backing rod sized to the joint sets it and keep the sealant to the right depth.
Questions from Snow Hill
Can you do external mastic in Snow Hill?
Yes, Snow Hill is within the area we cover. We work across London and the South East. You can phone 0345 464 0079 or send us an email and let us know what needs doing, and we will send you a clear quote.
Will you come out to Snow Hill?
Yes, Snow Hill is covered. Our work covers London and the South East, and smaller places are part of that. Longer journeys are simply planned in advance.
What colours does the sealant come in?
The aim is a neat, even joint in a colour that suits the wall. Colour is agreed with you before we begin, matched as closely as the range allows.
Do you have insurance?
Yes, we are fully insured for every job we do.
What is a movement joint?
It’s a deliberate gap that lets the wall expand and contract without cracking. It’s sealed with a flexible sealant, not mortar.
Where do you work from?
We are a Crawley-based firm, with over 20 years’ experience. Our area covers South East England, London and Scotland.
Do you seal joints where cladding meets other materials?
Yes. Where different materials meet is one of the most common joints we seal. We use a flexible sealant suited to both surfaces, primed where needed.
Do I have to be there?
If the work is inside, we need someone to let us in. After that, you can carry on with your day.