West Sussex · England
West Chiltington External Mastic
Sealing brickwork movement joints, render, cladding and façade joints for homeowners, landlords and businesses in West Chiltington. ARBOMaster approved applicators, fully insured, with a 12-month guarantee.
- Water getting into walls through failed joints
- Joints where the bead has come unstuck
- Rigid filler in a joint that should flex
When to call us in West Chiltington
Poor preparation causes many early failures: dusty or wet faces, no primer where one was needed, or old sealant left in. The new sealant then lets go long before it should.
Most people get in touch after spotting one of these:
- Cracked joints where brick meets render or frames
- Joints pointed up with cement by mistake
- Sealant pulling away from one side of the joint
- Brick movement joints where the sealant has split
For an older house near a landmark such as St Mary's Church, the joints between older walls, newer extensions and the roofline need a sealant that can move.
Questions to ask before you book
- How the joint is cleaned and prepared
- Is VAT in the price?
- What guarantee comes with the work
- How hidden problems are handled
External mastic in West Chiltington
Failed sealant is cut out, the depth set with closed-cell backing rod, and the joint resealed with a low-modulus sealant made for outside. We pick a colour that sits well with the wall so the line blends in. We’re often asked to deal with rigid filler in a joint that should flex and weathered mastic that no longer stretches, on render & cladding joints, concrete & block and copings & trims.
Older homes in small places like West Chiltington may be stone, brick or timber-framed, often with later extensions. Where one material meets another is where water generally gets in.
You get a 12-month guarantee, the same in West Chiltington as everywhere else we work.
- Location
- West Chiltington (RH20)
- Region
- West Sussex
- Cover
- 12 months on all our work
- Price
- A clear quote up front
- Telephone
- 0345 464 0079
- Last updated
- 26 October 2026
What the job involves on each surface
Brickwork movement joints
Brick moves with heat and moisture, and grows a little over time. The movement joint takes that up, so the sealant in it must stay soft and stretchy.
Render joints
Rendered walls have joints at beads, openings and changes of material. They’re resealed in a sealant that suits the render.
The process
When we get to you, we check the joints match what you told us. If we find something unexpected, we talk it through with you first. Most jobs then take anything from a few hours to several days, depending on the building. Somewhere as small as West Chiltington, access is often the only tricky part. If the job is outside, mention outbuildings, exposed walls and how to reach them.
- First, the joints are inspected and the access agreed.
- We cut out the old mastic and rake out anything in the joint.
- Joint faces are cleaned back and primed if the sealant needs it.
- We fit closed-cell backing rod to control the depth.
- The exterior sealant is applied, tooled and checked along its length.
Preparing for the visit
- Let us know about stairs, lifts or work at height
- Tell us about any water getting in
- Plan for the work area to be out of bounds to pets and children
Getting a quote
For a quick quote, get us on the phone, or email us if that’s easier. Describe what needs sealing and we’ll talk you through the work before giving you a price.
Related advice
For landlords and businesses
Housing providers, facilities teams and property managers book us too in West Chiltington and across West Sussex. We can quote a run of properties together, and we are fully insured for the work.
Businesses can book us for washrooms, kitchens, offices and more. For commercial premises, we can talk through working times when we quote.
Why act early in West Chiltington
Running new sealant over the old bead rarely lasts. The new layer can’t bond properly to old, weathered material, so we always take the old sealant out. Where a wall is exposed, as many are in small places like West Chiltington, wind-driven rain gets into any failed joint, and damp in older walls is slow to dry out.
A failed joint rarely gets cheaper to fix by waiting, as water and mould keep getting in. If you are not sure whether it needs doing, call 0345 464 0079 or email us for an honest opinion and a quote.
Why West Chiltington customers choose us
- Any old sealant cut out fully, not covered over
- A 12-month guarantee on all work
- 4.9 on Google from 180+ five-star reviews
- A sealant colour to suit the surroundings
Read our cost guide or customer reviews.
Quotes for external mastic in West Chiltington
The price is agreed before any work begins. It’s based on:
- When we can work, for business premises
- The number of rooms or windows
- How easy the joints are to reach
- How much old sealant there is and how hard it is to remove
No two jobs are quite the same, so each one gets its own quote. Size, access and the product the joint needs all make a difference.
What to tell us for a quote
The more you tell us, the more accurate the quote. When you get in contact, it helps to mention:
- The address or postcode of the job
- Photos by email, if that is easy
- Access, such as stairs, a lift or height
- If someone has resealed it before
For a quote, phone 0345 464 0079 or send us an email and tell us where the job is and what the problem looks like. We’ll give you a clear price before any work starts.
West Chiltington: your questions answered
Will you come out to West Chiltington?
Yes, we do. Our work covers London and the South East, from towns to the smallest places. The journey is planned ahead, so it helps to know about access.
Is West Chiltington in your area for external mastic?
Yes. Our work covers London and the South East, and West Chiltington is part of that. You can ring 0345 464 0079 or drop us an email and tell us what needs doing, and we’ll give you a clear price.
Will the new joint stand out?
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.
What does external mastic cost?
There’s no set price, as it depends on the job: its size, the old material, access and the product needed. We agree the price before any work begins.
What do you put in the joint?
We choose the sealant for the joint, not the other way round. Where it moves, gets wet or faces the weather makes a difference, and we will explain our choice.
Is it OK to seal over old sealant?
No. We remove every bit of old sealant first, so the new sealant bonds properly.
Do I have to be there?
If the work is inside, we need someone to let us in. Once we’ve agreed the job, you do not need to watch us work.
Can you seal joints between render and window frames?
Yes. The old joint is removed, both surfaces cleaned and primed where needed, and a flexible sealant applied. We pick a colour that works with both materials.
Places near West Chiltington
What else we do in West Chiltington
Walls and rooflines in West Chiltington
Historic houses like Old Place Manor (about 2.8 miles west) are a reminder that the area around West Chiltington has older buildings as well as new. In older buildings, older brick and stone need a sealant that suits them, at the right joint depth. The South East is one of the drier parts of the UK, though outdoor sealant still has to go onto a dry joint, so the forecast decides the day.
Managing a site like West Chiltington Community Primary School? Then larger buildings have long runs of movement joint that eventually need resealing. If you let a flat or house near Pulborough station, split movement joints are easy to miss on a rental until damp shows inside.
West Chiltington is about 9 miles north of Worthing, in West Sussex. Every kind of property in West Chiltington can book us for external mastic. The work is guaranteed for a year. West Chiltington is one of 371 towns and villages in West Sussex where we work for external mastic. For nearby work, see our Crawley page (16 miles or so).
Postcode districts we cover here for external mastic: RH20. Whether your property is on Pond Rise, Church Street and Castle Rise or anywhere close by, we can help. We also cover the places around West Chiltington: West Chiltington Common (1 mile south-west), Nutbourne (1 mile west), Thakeham (1 mile south-east), Abingworth (1 mile south-east) and Marehill (1 mile west). Within a short drive, we also cover Horsham (10 miles north-east), Worthing (9 miles south), Bognor Regis (15 miles south-west), Burgess Hill (14 miles east), Littlehampton (10 miles south) and Shoreham-by-Sea (11 miles south-east).
Local landmarks in West Chiltington
Locally, jobs take us to homes and businesses close to Rydon Community College, among other places. West Chiltington’s nearest station is Pulborough station, about 3 miles west. Nearby you will also find The Storrington And District Museum (2.5 miles south). Open spaces near West Chiltington include Amberley Wildbrooks RSPB Reserve.
Should I try it myself first?
What a professional job adds is preparation and the right product. We take joints back to clean, dry surfaces, and the sealant is chosen for how the joint moves and where it is, then guaranteed for a year.
Overfilling a joint is a classic DIY mistake. A heavy bead looks messy and copes badly with movement, and getting the depth right matters as much as the look.