West Sussex · England
External Mastic in East Lavant
External mastic for East Lavant and the surrounding area: careful preparation, the right product and tidy work. Ask us for a quick quote.
- Moss and dirt in joints with no sealant left
- Hard, crazed mastic that has stopped moving
- Cracked joints where brick meets render or frames
East Lavant: your questions answered
Do you cover East Lavant for external mastic?
Yes. Our work covers London and the South East, and East Lavant is part of that. Just call 0345 464 0079 or drop us an email with a few details of the job.
I let a flat near Chichester station. Can you help?
Yes. We work for letting agents and landlords as well as householders. You can call 0345 464 0079 or email us with the details for a clear quote.
What do you need from me for a quote?
Where the job is, what the problem is and roughly how big it is. Photos by email help too.
How long before the joint can be used?
Most sealants are touch-dry well before they’re fully cured. We will give you the cure time for the product we used before we leave.
How do I get a quote for external mastic in East Lavant?
There’s no set price, as it depends on the job: how much there is, what’s there now, how we reach it and what it needs. You’ll get a clear quote before any work starts.
Is it OK to fill a movement joint with cement?
No. Rigid materials cannot move with the wall. Where a joint has been mortared, it can often be raked out and sealed properly.
Do you work at height?
That depends on how high the joints are and the ground below. Low-level joints are straightforward; for higher work, tell us about the building and we’ll confirm what’s needed.
Does someone need to be in?
For indoor joints, yes, someone needs to let us in. Once we have agreed the job, you don’t need to watch us work.
External mastic in East Lavant, done properly
On houses, flats and commercial buildings across East Lavant, we reseal joints in brickwork, render, cladding and façade panels. Every joint gets the same careful preparation: clean joint faces and the right depth. If you have panel joints letting water in and plants rooting in failed movement joints, we can put it right, whatever the surface.
Around East Lavant, 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.
You get a one-year guarantee, the same in East Lavant as everywhere else we work.

- Place
- East Lavant (PO18)
- Wider area
- West Sussex
- Guarantee
- A year, on every job
- Quote
- A clear price before we start
- Call
- 0345 464 0079
- Page updated
- 26 October 2026
Why deal with it now?
A properly done movement joint is an even line in a colour that suits the wall. A hurried job with smeared edges and no backing looks worse and fails sooner. Where a wall is exposed, as many are in small places like East Lavant, wind-driven rain gets into any failed joint, and older walls, once damp, take a long time to dry.
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.
Why us?
- Fully insured
- Colour agreed with you before we start
- 4.9 on Google from 180+ five-star reviews
- An ARBOMaster approved applicator
Take a look at what affects the cost or what customers say.
Outside joints around East Lavant
Compared with the north and west, the South East gets less rain, though outdoor sealant still has to go onto a dry joint, so the forecast decides the day. Historic houses like Goodwood House (about 1.5 miles east) are a reminder that the area around East Lavant has older buildings as well as new. In older buildings, older walls and rooflines need a sealant that moves with them and suits the material.
Homes close to Church of St Mary include some older properties, and old and new materials meet at the roofline and walls, which is where sealant earns its keep. If you let a flat or house near Chichester station, outside joints that have cracked can let damp into a rental, so check them between lets.
East Lavant is about 2 miles north of Chichester, in West Sussex. East Lavant gets the same service as everywhere we cover: old sealant removed completely, careful preparation and a one-year guarantee. 371 places in West Sussex are on our list, from the larger towns to small villages. We also work in Portsmouth, about 14 miles from East Lavant.
Our applicators cover all of PO18 for external mastic. Whether your property is on Pook Lane, Fordwater Road and Shop Lane or a nearby road, we can help. Neighbouring places we cover for external mastic include Mid Lavant (1 mile north-west), Westerton (2 miles south-east), Westhampnett (2 miles south-east), Waterbeach (2 miles east) and Maudlin (2 miles south-east). Larger places within reach include Bognor Regis (7 miles south-east), Selsey (9 miles south), Littlehampton (11 miles east), Emsworth (7 miles west), Rustington (12 miles east) and Storrington (15 miles east).
Local landmarks in East Lavant
We work in homes and buildings around The Royal Oak Public House and Bishop Luffa School and the streets around them. East Lavant’s nearest station is Chichester station, roughly 2.5 miles south. A little further out are Chichester Castle (2 miles south) and The Chichester City Museum (2.1 miles south). For a walk, there’s Stoke Down and Kingley Vale National Nature Reserve.
When to call us in East Lavant
If plants are growing out of a joint, the sealant has usually failed or was never there. Roots and dirt hold water against the wall and make things worse.
The most common problems we see are:
- Rain getting behind render or cladding at a joint
- Joints where the bead has come unstuck
- Leaking joints around cladding and façade panels
- Movement joints filled with mortar instead of sealant
Schools such as Lavant CofE Primary School are buildings too, and its movement joints, gutters and trims need looking after like any other building’s.
Comparing quotes
- What preparation is included
- Whether they seal over old material or remove it
- Whether they’re fully insured
- What guarantee comes with the work
What the job involves on each surface
Copings and trims
Joints in copings, parapets and trims are exposed to the worst of the weather. Each is resealed with a weatherproof, flexible sealant.
Concrete and blockwork
Blockwork and concrete shrink over time and move with the seasons. We reseal their joints with backing rod and a flexible product.
Places near East Lavant
Other services in East Lavant
How it works
We keep the work tidy and contained to the area we’re working on. Expect the work to take a few hours to a few days, depending on the length of joint and the access, and we tell you how long to leave it before we go. Somewhere as small as East Lavant, access is often the only tricky part. For outside work, also let us know about exposed walls and any outbuildings involved.
- First, the joints are inspected and the access agreed.
- 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.
- Backing rod sized to the joint goes in to set the depth.
- The exterior sealant is applied, tooled and checked along its length.
Preparing for the visit
- For business premises, tell us about site rules or sign-in
- Plan for the work area to be out of bounds to pets and children
- Let us know about earlier repairs to the joints
Ask for a quote
It all starts with a short chat. Describe the problem, the location and the size of the job. When it suits you, call 0345 464 0079 or email us.
Advice
When something else is needed
Sealant is not the answer to every problem, and we’ll tell you before we start. Sealant will not put right:
- Render that is blown, hollow or coming away
- Cracks in the bricks or render themselves, away from the joints
- Subsidence or other structural problems
Not sure which it is? You can phone 0345 464 0079 or email us and we will tell you honestly before you book.
Joints and surfaces we work on
- Joints between brick and frames
- Façade panels
- Render & cladding joints
- Copings & trims
- Concrete & block
- Brickwork movement joints
What affects the quote in East Lavant
There’s no set price list. What we look at:
- The amount of work
- Mould in or behind the old joints
- Whether the work is at height
- How many areas need sealing
Homes and businesses are quoted the same way: how much there is to do, how we reach it and what it needs, along with when we can work on site. Ask us for a quote and we will explain what it covers.
Helping us quote
To make quoting easier, let us know:
- Whether it’s a home or a business
- The address or postcode of the job
- How we’d reach the joints
- If someone has resealed it before
Getting a quote is simple: tell us what needs doing and where. Photos by email help us understand the job, and we’ll take it from there.
How to look after the new joints
Joint life depends on how it’s used and looked after. We suggest:
- Get split or bare joints resealed while the damage is small
- Keep movement joints as flexible joints, not mortar
- Point out the joints to other trades
- Avoid pressure-washing directly into sealant joints
Make sure anyone working on the wall later knows where the movement joints are. They should be kept open and resealed, not filled.
Water getting behind cladding or render can go unnoticed for a long time. By the time there’s a damp patch, the damage can be well established.
