East Sussex · England
External & façade joints in Dukes Green, East Sussex
Specialist external mastic for Dukes Green: careful preparation, the right product and tidy work. Call for a quick quote.
- Plants rooting in failed movement joints
- Movement joints with cracked, split or missing sealant
- Weathered mastic that no longer stretches
How we handle external mastic in Dukes Green
Low-level joints can normally be done from the ground. For joints higher up, give us some details of the building and we will confirm what’s needed to reach them safely. Typical jobs include joints where the bead has come unstuck and failed seals between different materials, on concrete & block, façade panels and render & cladding joints.
Outside joints can only be sealed when they’re dry, so work in Dukes Green is booked around the forecast. Tell us about access to all sides of the building, including outbuildings and garages.
Each job carries a 12-month guarantee, large or small.
- Where
- Dukes Green (BN26)
- Region
- East Sussex
- Guarantee
- A year, on every job
- Quotes
- A clear price before any work starts
- Phone
- 0345 464 0079
- Page updated
- 26 October 2026
Honest limits
Sealant is not the answer to every problem, and we’ll tell you before any work starts. It won’t solve:
- Failed render or damaged cladding panels
- Cutting new joints into brickwork, which is building work rather than sealant work
- Subsidence or other structural problems
If in doubt, ring 0345 464 0079 or email us and we’ll say what we think before booking.
Joints and surfaces we work on
- Brickwork movement joints
- Joints between brick and frames
- Render & cladding joints
- Copings & trims
- Concrete & block
- Façade panels
Why it’s worth doing now in Dukes Green
Running new sealant over the old bead rarely lasts. The new layer cannot bond properly to old, weathered material, so the old joint is cut out fully first. Older cottages and farmhouses around Dukes Green can have timber floors and frames, and water through a failed joint can rot timber if it’s left.
Doing several joints on one visit is normally more efficient than separate visits, so tell us about everything that needs sealing. We will give you a clear quote for the lot.
What you get with us
- Trusted Arbo and Everbuild sealants
- Anti-fungal sanitary silicone in wet areas
- You choose the colour before work begins
- 4.9 on Google from 180+ five-star reviews
Read our cost guide or customer reviews.
Quotes for external mastic in Dukes Green
Call for a quick quote. The main things that affect it are:
- The type of sealant required
- How easy the joints are to reach
- Whether there’s mould to deal with
- Any working-time requirements on site
A few things move the cost up or down: the old material and how easily it comes out, any mould to treat, and whether we need extra access for height. We take all of that into account in your quote.
What we need to know
A few details help us give you an accurate quote. When you ask for a quote, tell us:
- How many joints, rooms or windows are involved
- Photos by email, if that’s easy
- If it’s domestic, commercial or a hotel
- Any previous sealing or DIY work
For external mastic in Dukes Green, ring 0345 464 0079 or email us. A short description of the job and where it is helps us quote, and you will get a clear quote before we start.
Also near Dukes Green
Also in Dukes Green
Outside joints around Dukes Green
Dukes Green is within about 3 miles of the coast, where wind-driven rain is a fact of life and, nearer the shore, so is salt air. Both are hard on movement joints and outside wall joints, which can dry out and crack sooner where a building faces the weather. Rainfall in the South East is lower than in much of the UK, yet outdoor joints still have to be sealed dry, so jobs are booked with the weather in mind.
Rented homes near Berwick (Sussex) station change hands often, and outside joints that have cracked can let damp into a rental, so check them between lets. If you look after a building such as Alfriston School, larger buildings have long runs of movement joint that eventually need resealing.
Dukes Green is about 3 miles north-east of Seaford, in East Sussex. Across the BN26 area, we can carry out external mastic at your property. Dukes Green is one of 289 towns and villages in East Sussex we cover for external mastic. There’s also a page for Brighton, about 13 miles away.
We work across the BN26 postcode area for external mastic. We also cover Lullington (1 mile north-east), Alfriston (1 mile north), Winton (1 mile north), Milton Street (1 mile north-east) and Alciston (2 miles north). Further out, we also cover Eastbourne (6 miles east), Bexhill-on-Sea (14 miles east), Seaford (3 miles south-west), Lewes (8 miles north-west), Hailsham (6 miles north-east) and Uckfield (12 miles north).
Near you in Dukes Green
Around Dukes Green, our work takes us to homes and buildings near Dean's Place Hotel and the streets around them. The closest station to Dukes Green is Berwick (Sussex) station, about 2.8 miles north. Well-known places in the area include Chailey Heritage Marine Hospital (3.8 miles west) and Arlington Castle (1.2 miles north-east). For a walk, there’s Firle Beacon.
Signs you need external mastic in Dukes Green
Joints sealed without backing rod, or far too deep, rarely last. If the sealant sticks to the back as well as the sides, it can’t stretch and rips as the joint opens.
Any of these means the joints need attention:
- Failed sealant between panels on a façade
- Joints pointed up with cement by mistake
- Weathered mastic that no longer stretches
- Weeds or debris growing in open joints
For an older house near a landmark such as The Parish Church of St Michael the Archangel, an extension built onto an older house moves differently, and the joint between them takes the strain.
Questions to ask before you book
- Whether VAT is included
- How long to leave it before use
- What product goes in the joint
- Whether all the old sealant comes out first
What we do, step by step
All our tools and materials come with us in the van, so there’s nothing for you to buy. After a quick look at the joints together, we protect the area and start. Most jobs take a few hours for a handful of joints, longer for a whole elevation. In a small place like Dukes Green, access is usually the main thing to plan. If the job is outside, mention outbuildings, exposed walls and how to reach them.
- We look at every joint and agree a colour to suit the wall.
- We take out the old sealant until the faces are sound.
- Backing rod goes in so the sealant can stretch between the two faces.
- Primer is applied wherever the sealant needs it.
- We gun in low-modulus sealant and tool it neatly.
How to prepare
- Let us know about stairs, lifts or work at height
- Mention if the joints have been sealed before
- For business premises, tell us about site rules or sign-in
Getting a quote
There’s no standard price list, as no two jobs are quite the same. Instead, your job gets its own clear quote. To get started, call 0345 464 0079 or email us.
Related advice
Different surfaces, different methods
Brickwork movement joints
Clay brickwork grows slightly over its life and moves with the weather. The movement joint takes that up, so the sealant in it must stay soft and stretchy.
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.
Dukes Green questions
Will you come out to Dukes Green?
Yes, we do. We work across London and the South East, and smaller places are part of that. The journey is planned ahead, so it helps to know about access.
I let a flat near Berwick (Sussex) station. Can you help?
Yes, we work for landlords and letting agents. Just call 0345 464 0079 or drop us an email and tell us about the property, and we’ll give you a clear price.
Are you ARBOMaster approved?
Yes. We’re ARBOMaster approved, the scheme for applicators of Arbo sealants.
What is backing rod for?
Backing rod controls the sealant depth and keeps it off the back of the joint. Then the sealant bonds to two faces and can move.
Do you do commercial work?
Yes, regularly. Larger jobs can be planned room by room or area by area to suit the site.
Where are you based?
Our base is in Crawley, West Sussex, and we work across South East England, London and Scotland.
Is it messy?
No. The area is protected while we work and cleaned up afterwards.
Can you reach joints on upper floors?
Each building is different. Tell us the height, the number of joints and what’s below them.
For landlords and businesses
Housing providers, facilities teams and property managers book us too in Dukes Green and across East Sussex. Several sites can be quoted together, and we are fully insured.
We work for landlords and letting agents as well as householders. Sealant work between tenants keeps a property looking cared for.