West Sussex · England
Poynings External Mastic
Sealing brickwork movement joints, render, cladding and façade joints for homes and businesses in Poynings and across West Sussex. Fully insured, ARBOMaster approved and guaranteed for a year.
- Plants rooting in failed movement joints
- Panel joints letting water in
- Weathered mastic that no longer stretches
Why act early in Poynings
Resealing a run of joints in one go is usually better than patching one at a time. They’ve weathered the same way, and access only has to be arranged once. Older cottages and farmhouses around Poynings can have timber floors and frames, where water from a failed joint can cause rot if it’s left.
We do not show prices on the website, because the cost depends so much on the job itself. Call for a quick quote.
Why book with us
- A sealant colour to suit the surroundings
- Domestic, commercial and hotel work
- 20+ years of sealant experience
- A choice of colours where the product allows
See what affects the cost or our reviews.
External mastic for homes and businesses in Poynings
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 so the line blends in. We work on concrete & block, joints between brick and frames and render & cladding joints, and common reasons people get in touch are failed seals between different materials and weeds or debris growing in open joints.
Outside joints can only be sealed when they’re dry, so work in Poynings is booked around the forecast. Tell us about access to all sides of the building, including outbuildings and garages.
We stand behind the work with a 12-month guarantee.
- Place
- Poynings (BN45)
- Region
- West Sussex
- Cover
- A year, on every job
- Quotes
- Quoted before any work starts
- Telephone
- 0345 464 0079
- Page updated
- 26 October 2026
How the job changes by surface
Concrete and blockwork
Big joints in concrete need careful depth control. Backing rod sized to the joint sets it.
Joints between dissimilar materials
Wherever two materials meet, they move differently. We seal the joint with a flexible exterior sealant so neither cracks the other.
What affects the quote in Poynings
The quote reflects the job in front of us. We look at:
- How much there is to do
- Working hours on commercial sites
- Whether there’s mould to deal with
- Whether the work is at height
What it costs depends on the amount of work, how hard the old material is to remove and how easy the joints are to reach. We give a clear quote before we start.
Asking for a quote
A few details help us give you an accurate quote. When you ask for a quote, tell us:
- Pictures of the joints, sent by email
- Any previous sealing or DIY work
- The type of property
- Where the property is
Need a quote? Please phone 0345 464 0079 or email us with a few details. We will explain what we’d do and give you a clear price before any work starts.
For landlords and businesses
Landlords and letting agents in Poynings can book us as well as householders. Resealing between tenancies keeps a property looking cared for.
Whether it’s one flat or a portfolio, you get the same standard of work: the old material taken out, careful preparation and a 12-month guarantee.
More services for Poynings
Looking after it afterwards
Good habits help new joints last longer. A few tips:
- Get split or bare joints resealed while the damage is small
- Make sure movement joints aren’t pointed over
- Avoid pressure-washing directly into sealant joints
- Deal with leaking gutters that soak the joints below
Have a quick look at the joints each spring. Watch for splits, edges coming away or growth in the joint.
Gaps, plants or missing sealant in a joint are worth getting looked at. Early work is quicker and leaves a better finish.
The process
On the day, we look over the joints with you first, so there are no surprises. We protect the surfaces around the joints before any work starts. Most jobs take a few hours for a handful of joints, longer for a whole elevation. In a small place like Poynings, access is generally the main thing to plan. For outside work, also let us know about exposed walls and any outbuildings involved.
- 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.
- 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
- Clear the area around the work
- Keep pets and children clear of the area while we work
- For indoor joints, keep the area dry beforehand if you can
Getting a quote
Call for a quick quote, or send an email if you’d rather. Tell us about the joints that need doing and we’ll explain what’s involved.
Advice
Poynings: your questions answered
Do you work for landlords with property near Hassocks station?
Yes, we work for landlords and agents. You can call 0345 464 0079 or email us with the address and a few details, and we’ll give you a fixed price before we start.
Is Poynings within the area you cover?
Yes, smaller places are covered as well as towns. Our work covers London and the South East. Let us know about access, parking and anything unusual about getting there when you book.
Is there any odour?
Sometimes, a little. It fades as the sealant cures, and ventilation helps.
What sealant do you use?
Products from Arbo and Everbuild, among others, chosen to suit the joint. We explain the product when we quote.
Do you hold any approvals?
Yes. We hold ARBOMaster approved applicator status and we are fully insured too.
Where are you based?
We’re based in Crawley, West Sussex, and we work across South East England, London and Scotland.
Can I add another job to the visit?
Yes. Several rooms, windows or areas can go on one quote.
Can you seal joints between two different materials?
Yes. Different materials move at different rates, so a flexible sealant is needed where they meet. The sealant is matched to both sides.
What sealant work cannot fix
We’ll always be straight with you, so here’s what new sealant won’t do:
- Movement that is more than a sealant joint can take
- Cracked brickwork or render that needs a builder or plasterer
- Adding movement joints to masonry that has none
If in doubt, phone 0345 464 0079 or email us and we will say what we think.
Where we work in Poynings
- Render & cladding joints
- Brickwork movement joints
- Joints between brick and frames
- Concrete & block
- Copings & trims
- Façade panels
What external mastic looks like in Poynings
With historic houses such as Portslade Manor (about 3.7 miles south) nearby, there’s older building stock in the area around Poynings as well as newer homes. In older buildings, older walls and rooflines need a sealant that moves with them and suits the material. The South East is one of the drier parts of the UK, but outside sealant still needs a dry, clean surface, so outdoor work is planned around the forecast.
For an older house near a landmark such as The Church of the Holy Trinity, old and new materials meet at the roofline and walls, which is where sealant earns its keep. Rented homes near Hassocks station change hands often, and split movement joints are easy to miss on a rental until damp shows inside.
Poynings is about 4 miles north of Brighton and Hove, in West Sussex. Every kind of property in Poynings can book us for external mastic, old or new, large or small. The work is guaranteed for a year. We cover 371 towns and villages across West Sussex.
We work across the BN45 postcode area for external mastic and the streets around it. If you need external mastic at a property on The Street and Cora's Walk or anywhere close by, our applicators can take on the job. Neighbouring places we cover for external mastic include Fulking (1 mile south-west), Hangleton (3 miles south), Portslade (4 miles south), Castle Town (4 miles west) and Kingston by Sea (4 miles south). Larger places within reach include Crawley (15 miles north), Horsham (13 miles north-west), Worthing (10 miles south-west), Haywards Heath (9 miles north-east), Burgess Hill (5 miles north-east) and Littlehampton (15 miles south-west).
Near you in Poynings
In Poynings, that means homes and buildings near Royal Oak pub, among other places. Poynings’s nearest station is Hassocks station, about 3.3 miles north-east of the centre. A little further out are The Budding Foundation Museum of Gardening (2.9 miles north-east) and Southlands Hospital (4.4 miles south-west). For a walk, there’s Wolstonbury Hill and Woods Mill.