West Sussex · England
External & façade joints in Marehill, West Sussex
Professional external mastic in and around Marehill, with old sealant always removed completely and a one-year guarantee.
- Plants rooting in failed movement joints
- Weathered mastic that no longer stretches
- Rain getting behind render or cladding at a joint
How we quote for external mastic
You will get a clear quote before work begins. It’s based on:
- The number of rooms or windows
- How much old sealant there is and how hard it is to remove
- The type of sealant required
- Mould in or behind the old joints
Leaving a failed joint normally makes the job bigger, not smaller, as water and mould keep getting in. If you are unsure, ring 0345 464 0079 or email us for an honest opinion and a quote.
What to tell us for a quote
You do not need to know the technical terms. Just tell us:
- Photos by email, if that’s easy
- The address or postcode of the job
- The type of property
- Roughly how big the job is
For a quote, call 0345 464 0079 or email us and tell us where the job is and what the problem looks like. You will have a clear quote before work begins.
How we handle external mastic in Marehill
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. The colour is chosen to suit the brick or render. If you have hard, crazed mastic that has stopped moving and panel joints letting water in, we can help.
In a village or hamlet like Marehill, 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.
Whatever the size of the job, it’s backed by our 12-month guarantee.
- Place
- Marehill (RH20)
- Wider area
- West Sussex
- Guarantee
- 12 months on all our work
- Price
- Quoted before any work starts
- Telephone
- 0345 464 0079
- Last updated
- 26 October 2026
How the visit works
Every visit runs the same way: we look at the joints together, protect the area around them, do the work and clear up. It usually takes a few hours to a few days, depending on the length of joint and the access. Somewhere like Marehill 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.
- We cut out the failed sealant and rake out any dirt or growth.
- The joint faces are cleaned and primed where the sealant needs it.
- 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
- Keep children and pets away from the work area
- Clear items away from the joints we’re working on
- Mention any sign-in or site rules at work premises
Getting a quote
We quote each job on its own, so start by telling us what you need. Simply call 0345 464 0079 or drop us an email and describe the job.
Advice
For landlords and businesses
We also work for property managers and facilities teams in Marehill and across West Sussex. We can quote a run of properties together, and we are fully insured for the work.
Letting agents often deal with us directly. Tell us the address, the job and how access works and we will give you a quote.
Can I do it myself?
Too much sealant is as bad as too little. A thick, smeared bead looks untidy and doesn’t move well, and the joint depth matters as much as the finish.
If you’re 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 does not work out, we can still put it right.
Places near Marehill
Other services in Marehill
Do you need external mastic in Marehill?
Poor preparation causes many early failures: dusty or wet faces, no primer where one was needed, or old sealant left in. The sealant never bonds properly.
Common reasons people contact us include:
- Movement joints with cracked, split or missing sealant
- Panel joints letting water in
- Damp patches traced to an open external joint
- Movement joints filled with mortar instead of sealant
Homes close to Wiggonholt Church include some older properties, and old and new materials meet at the roofline and walls, which is where sealant earns its keep.
Before booking anyone
- How hidden problems are handled
- Whether all the old sealant comes out first
- How the joint is cleaned and prepared
- How long the guarantee is
Walls and rooflines in Marehill
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. Historic houses like Old Place Manor (about 1.4 miles west) are a reminder that the area around Marehill 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.
For landlords with property near Pulborough station, outside joints that have cracked can let damp into a rental, so check them between lets. For site and facilities teams at buildings such as St Mary's Church of England Primary School, movement joints, cladding joints and gutters on larger buildings need the same care as a house’s.
Marehill is about 10 miles north of Worthing, in West Sussex. Jobs in Marehill get the same care as everywhere else we work: old sealant removed completely, careful preparation and a one-year guarantee. Marehill is one of 371 towns and villages in West Sussex where we work. You can also see our page for Crawley, roughly 17 miles from Marehill.
Our applicators cover all of RH20 for external mastic and the streets around it. Whether your property is on West Chiltington Road, Tudor Close and Kings Lane or anywhere close by, our applicators can take on the job. We also cover the places around Marehill: Nutbourne (1 mile north-east), Broomershill (1 mile north-west), Wiggonholt (1 mile south), West Chiltington Common (1 mile south-east) and West Chiltington (1 mile east). We also work in nearby towns such as Horsham (10 miles north-east), Worthing (10 miles south), Bognor Regis (14 miles south-west), Chichester (15 miles south-west), Burgess Hill (15 miles east) and Littlehampton (10 miles south).
What’s near Marehill
In Marehill, that means homes and buildings near The Rising Sun Inn. The closest station to Marehill is Pulborough station, about 1.6 miles west. A little further out are Amberley Castle (4 miles south-west) and The Storrington And District Museum (2.9 miles south-east). Not far away are Amberley Wildbrooks RSPB Reserve.
Your questions about external mastic in Marehill
Do you cover Marehill for external mastic?
Yes. We work across London and the South East, and Marehill is part of that. Just ring 0345 464 0079 or email us with a few details of the job.
Do you cover smaller places like Marehill?
Yes. Marehill is within the area we cover, which takes in towns, villages and rural addresses. We work across London and the South East. Let us know about access, parking and anything unusual about getting there when you book.
Are you ARBOMaster approved?
Yes. We’re ARBOMaster approved, the scheme for applicators of Arbo sealants.
What colours does the sealant come in?
We aim for a joint that suits the wall rather than one that jumps out. Colour is agreed with you before we begin from the range available.
Can tenants book the work?
Of course. Check with your landlord; we can send the quote to them too.
Do you work at height?
That depends on how high the joints are and the ground below. Ground-floor joints are simple; for higher ones, send details and we’ll confirm the access.
Do I need to be at home?
For indoor joints, yes, someone needs to let us in. Once we’ve agreed the job, you don’t need to watch us work.
Do you do commercial work?
Yes. Hotels, offices and other businesses use us and we are fully insured.
Why deal with it now?
An open joint keeps letting water into the wall with every downpour. Wet masonry is more easily damaged by frost near the open joint, so the damage spreads beyond the joint. Older cottages and farmhouses around Marehill can have timber floors and frames, and water through a failed joint can rot timber if it’s left.
Combining jobs into one visit usually makes better use of the time than several visits. We will give you a clear quote for the lot.
What you get with us
- Experience in homes, commercial sites and hotels
- Colour picked to suit the job
- Trusted Arbo and Everbuild sealants
- Old sealant always removed completely
Read what affects the cost and what customers say.
How the job changes by surface
Concrete and blockwork
Concrete faces can be dusty and porous, so preparation is key. We prime where the sealant needs it.
Render joints
Render has movement joints and stop beads that need sealing. We reseal them with a flexible exterior sealant that suits the render colour.