West Sussex · England
Heath Common External Mastic
External mastic for Heath Common, by sealant specialists with 20+ years’ experience. 180+ five-star Google reviews and a 4.9 rating.
- Joints pointed up with cement by mistake
- Leaking joints around cladding and façade panels
- Brick movement joints where the sealant has split
Should I try it myself first?
Some sealant jobs are within reach of a careful DIYer, 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.
If you are set on DIY, put the effort into preparation: remove every trace of old sealant, clean and dry the joint, and follow the product’s cure time. If it fails, we can still redo it.
External mastic in Heath Common
A movement joint is only as good as its depth. Closed-cell backing rod sets the depth and stops the sealant sticking to the back, so it bonds to the two sides only and can stretch. We work on joints between brick and frames, concrete & block and render & cladding joints, and people most often call us about cracked joints where brick meets render or frames and failed sealant between panels on a façade.
In a village or hamlet like Heath Common, older cottages and farm buildings often stand in the open, where walls and rooflines take the weather head on. Gutter joints and wall joints there need a sealant that can flex and stay put.
All of our work is guaranteed for twelve months, and the guarantee is the same wherever you are.
- Place
- Heath Common (RH20)
- Wider area
- West Sussex
- Cover
- A year, on every job
- Price
- A clear price before any work starts
- Telephone
- 0345 464 0079
- Page updated
- 26 October 2026
Towns and villages near Heath Common
What else we do in Heath Common
When something else is needed
In fairness, there are a few things sealant won’t fix:
- Failed render or damaged cladding panels
- Subsidence or other structural problems
- Damp that isn’t coming from the joint
If in doubt, call 0345 464 0079 or send us an email and we will say what we think before you book.
Surfaces we seal
- Brickwork movement joints
- Concrete & block
- Joints between brick and frames
- Façade panels
- Render & cladding joints
- Copings & trims
Landlord and commercial work in Heath Common
Businesses can book us for washrooms, kitchens, offices and more. For commercial premises, we can talk through working times when we quote.
Failed sealant is one of the commonest items on a check-out report, and it’s easy to sort out between tenants. We can quote for more than one property at once.
Outside joints around Heath Common
Compared with the north and west, the South East gets less rain, but outside sealant still needs a dry, clean surface, so outdoor work is planned around the forecast. With historic houses such as Parham House (about 3.1 miles west) nearby, there’s older building stock in the area around Heath Common as well as newer homes. In older buildings, older brick and stone need a sealant that suits them, at the right joint depth.
If you look after a building such as Thakeham Primary School, movement joints, cladding joints and gutters on larger buildings need the same care as a house’s. For landlords with property near Pulborough station, failed wall and movement joints let damp in, so they’re worth checking between tenancies.
Heath Common is about 1 mile east of Storrington, in West Sussex. We carry out external mastic for homes and businesses in Heath Common and nearby, as part of our work across West Sussex. Heath Common is one of 371 towns and villages in West Sussex we cover for external mastic. There’s also a page for Brighton, roughly 14 miles from Heath Common.
Work in RH20 works the same way as everywhere else we cover. Streets in the area include Rock Road, Hampers Lane and Bracken Lane, and we cover them all. We also cover Abingworth (1 mile north-west), Rock (1 mile south-east), Warminghurst (1 mile north-east), Storrington (1 mile west) and Sullington (1 mile south-west). Larger places within reach include Horsham (11 miles north-east), Worthing (7 miles south), Bognor Regis (15 miles south-west), Haywards Heath (15 miles east), Burgess Hill (13 miles east) and Littlehampton (9 miles south-west).
What’s near Heath Common
Locally, jobs take us to homes and businesses close to Rydon Community College. For rail, the closest station is Pulborough station, about 4.7 miles north-west of the centre. Nearby you’ll also find The Storrington And District Museum (1.2 miles south-west). Not far away are Chanctonbury Hill and Amberley Wildbrooks RSPB Reserve.
Your questions about external mastic in Heath Common
Can you do external mastic in Heath Common?
Yes, Heath Common is within the area we cover. We work across London and the South East. Just phone 0345 464 0079 or email us with a few details of the job, and we’ll give you a clear quote.
Is Heath Common within the area you cover?
Yes, Heath Common is covered. Our work covers London and the South East, from towns to the smallest places. Longer journeys are simply planned in advance.
Can I add another job to the visit?
Yes. Tell us about everything you’d like done and we’ll quote it together.
Can new sealant go over the old?
No, and we never do. It can look neat for a few weeks, but the new bead soon lifts. The old sealant has to come out completely.
Can landlords and businesses book you?
Yes. As well as householders, we work for landlords, agents, businesses and hotels.
Why is there a gap in my brick wall?
Walls move with heat, cold and moisture, and planned joints take up that movement. The gap is sealed with a flexible sealant over backing rod.
What sealant do you use?
Each joint gets the product that suits it. Where it moves, gets wet or faces the weather makes a difference.
Do you remove the old sealant?
Yes. Sealing over the old bead is the commonest cause of early failure, and it’s something we never do.
Signs you need external mastic in Heath Common
Some movement joints have been pointed up with mortar by mistake. The joint cannot move, so the wall cracks somewhere else instead.
The most common problems we see are:
- Movement joints filled with mortar instead of sealant
- Sealant that has lost its bond to the brick or render
- Weathered mastic that no longer stretches
- Water getting into walls through failed joints
Homes close to Church of the Holy Sepulchre include some older properties, and older walls, gutters and the joints where extensions meet them need a flexible sealant.
What your quote should include
- How the joint is cleaned and prepared
- How long to leave it before use
- What the quote includes, VAT included or not
- What guarantee comes with the work
How the visit works
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. Somewhere like Heath Common needs a little journey planning: let us know about lanes, gates and parking. We bring what the job needs, so it can be finished in one trip where possible.
- First we look over the joints with you, agree which to renew and talk through access.
- The old mastic and anything lodged in the joint is removed.
- Both sides are cleaned back to sound material and primed if needed.
- Backing rod goes in next, setting the depth and keeping the sealant off the back of the joint.
- A flexible exterior sealant is applied and tooled in a colour to suit the wall.
Preparing for the visit
- Let us know if you’ve seen damp or leaks
- For business premises, tell us about site rules or sign-in
- Let us know about earlier repairs to the joints
Getting a quote
Need a quote? Please phone 0345 464 0079 or email us with a few details. We’ll explain what we’d do and give you a clear price before work begins.
Related advice
Surface by surface
Render joints
Render is weaker at the surface than brick, so a sealant that stretches easily protects the edges. Priming is done where the sealant calls for it.
Cladding and façade panels
Where a cladding system has its own specified sealant, we follow it, or one the system allows. Send us any details you have about the façade.
What happens if it’s left?
Water gets in through a failed movement joint, behind render and cladding. Resealing early keeps the job to the joint itself, rather than the wall around it. Around Heath Common, older homes often have timber in their floors and frames, and water through a failed joint can rot timber if it’s left.
Leaving a failed joint usually makes the job bigger, not smaller, as water and mould keep getting in. If you’re unsure, phone 0345 464 0079 or email us and we will give you an honest view and a quote.
What you get with us
- A sealant colour to suit the surroundings
- Old sealant always removed completely
- One-year guarantee on every job
- An ARBOMaster approved applicator
Take a look at what affects the cost and customer reviews.