Southend-on-Sea · England
North Shoebury External Mastic
Our applicators work in North Shoebury on sealing brickwork movement joints, render, cladding and façade joints. Old material cut out, joints cleaned and sealed neatly.
- Sealant pulling away from one side of the joint
- Water getting into walls through failed joints
- Cracked joints where brick meets render or frames
What affects the cost of external mastic
Some jobs are bigger than they look, and some smaller. The main factors:
- Access and height
- The number and length of the joints
- The type of sealant required
- The old material and how stubborn it is
A few things move the cost up or down: how much old sealant there is and how stubborn it is, any mould to treat, and whether the work is at height. We take all of that into account in your quote.
What to tell us for a quote
What to tell us when you ask for a quote:
- The address or postcode of the job
- If someone has resealed it before
- Whether it’s a home or a business
- A few photos by email, if you can
The more we know about the job, the more useful the quote. Tell us where the job is, what’s wrong and how much there is, and add pictures by email if you can.
External mastic in North Shoebury
Joints between dissimilar materials, like brick against render or concrete against a steel frame, see movement from both sides. A flexible sealant bridges the two where mortar or filler would crack. Typical jobs include brick movement joints where the sealant has split and hard, crazed mastic that has stopped moving, across façade panels, concrete & block and render & cladding joints.
In a smaller place like North Shoebury, some homes face open ground, so exposed walls and rooflines take more wind-driven rain. Joints on those sides are generally the first to go.
You’re covered for a year from the day we finish. If anything is not right with it, phone 0345 464 0079 or email us.

- Location
- North Shoebury (SS3, SS1)
- Region
- Southend-on-Sea
- Cover
- A year, on every job
- Quote
- Quoted before any work starts
- Telephone
- 0345 464 0079
- Updated
- 26 October 2026
Aftercare tips
To keep the joints looking good and working properly:
- Ask before painting over external sealant
- Don’t let climbing plants root in the sealant
- Have failed joints looked at early
- Make sure movement joints are not pointed over
Look over the joints once a year, ideally after winter. Watch for splits, edges coming away or growth in the joint.
Leaks behind façade panels and render often go unseen. By the time there’s a damp patch, the damage can be well established.
Landlords, agents and businesses in North Shoebury
Letting agents and landlords in North Shoebury can book us as well as homeowners. Sealant work between tenants keeps a property looking cared for before the next move-in.
Housing providers, facilities teams and property managers book us too in North Shoebury and across Southend-on-Sea. Several sites can go on one quote.
What we’re called out for in North Shoebury
Some movement joints have been pointed up with mortar by mistake. With the joint locked solid, the movement turns into cracks elsewhere in the wall.
If you can see any of these, it’s time to have the joints looked at:
- Moss and dirt in joints with no sealant left
- Damp patches traced to an open external joint
- Movement joints filled with mortar instead of sealant
- Sealant pulling away from one side of the joint
Letting a property close to Shoeburyness station? Then outside joints that have cracked can let damp into a rental, so check them between lets.
What to look for in a quote
- How long the guarantee is
- What product goes in the joint
- Whether all the old sealant comes out first
- What happens if the job turns out different
DIY sealant or a professional job?
A careful DIYer can reseal a simple joint, such as a straightforward joint indoors. The common mistakes are sealing over old sealant, sealing a damp joint and using far too much.
Some jobs are best left to a professional: high-level joints, fire-rated gaps, external movement joints and big jobs need the right product, the right access and the right method.
Outside joints around North Shoebury
North Shoebury is within about 1 mile of the coast, and homes near the sea take more wind-driven rain, with salt in the air closer to the shore. 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, but outside sealant still needs a dry, clean surface, so outdoor work is planned around the forecast.
If you live in an older home near Church of St Mary the Virgin, an extension built onto an older house moves differently, and the joint between them takes the strain. For site and facilities teams at buildings such as St George's Catholic Primary School, movement joints, cladding joints and gutters on larger buildings need the same care as a house’s.
North Shoebury is about 4 miles east of Southend-on-Sea, in Southend-on-Sea. From the centre of North Shoebury to the outskirts, external mastic is available for homes and businesses alike. 16 places in Southend-on-Sea are on our list, large and small. For nearby work, see our Chelmsford page (19 miles or so).
Postcode districts we cover here for external mastic: SS3 and SS1. External mastic is available to properties on Elm Road, Antrim Road and Bulwark Road. Nearby, we also carry out external mastic in Shoeburyness (1 mile south-east), Thorpe Bay (1 mile south-west), Little Wakering (1 mile north), Stonebridge (2 miles north-west) and Southchurch (2 miles west). Within a short drive, we also cover Southend-on-Sea (4 miles west), Prittlewell (3 miles west), Leigh-on-Sea (6 miles west), Westcliff-on-Sea (4 miles west), Chalkwell (5 miles west) and Eastwood (5 miles west).
Around North Shoebury
Around North Shoebury, our work takes us to homes and buildings near Parsons' Barn pub, Shoeburyness Old Ranges and Futures Community College, among other places. North Shoebury’s nearest station is Shoeburyness station, roughly 0.8 miles south-east. Nearby you’ll also find Southend University Hospital (4.2 miles west) and Southend Historic Aircraft Museum (3.6 miles north-west). Open spaces near North Shoebury include Gunners Park and Shoebury Ranges.
Places near North Shoebury
More services for North Shoebury
How the job changes by surface
Copings and trims
Copings expand and contract through the day, so the joints need a sealant that stays flexible.
Joints between dissimilar materials
Brick against render, concrete against metal, stone against timber: every change of material is a joint. We seal the joint with a flexible exterior sealant.
What we do, step by step
You do not need to clear the whole room or building before we come, only the area right around the joints. Everything nearby is protected, and the job takes a few hours for a handful of joints, longer for a whole elevation in most cases. In a smaller place like North Shoebury, parking is seldom the issue; lanes, gates and long drives are worth mentioning. For outside work, side access and the height of the joints help us plan.
- We inspect the joints and agree which need resealing and how they’ll be reached.
- Old sealant and any debris are cut and raked out.
- We clean both faces of the joint and prime them where the product calls for it.
- We push in closed-cell backing rod so the sealant is the right depth and bonds to the sides only.
- A flexible exterior sealant is applied and tooled in a colour to suit the wall.
Getting ready for the visit
- Keep children and pets away from the work area
- Tell us about access, such as stairs, a lift or high-level joints
- Tell us if parking is tricky
Getting a quote
Need a quote? Please phone 0345 464 0079 or send us an email and tell us about the job. We’ll explain what we’d do and give you a clear quote before work begins.
Advice
Common questions in North Shoebury
Does the coastal weather in North Shoebury affect outside sealant?
Coastal homes put outside sealant through more weather than inland ones, so the choice of sealant and the preparation matter even more. Walls facing the sea are generally the first to need attention.
Do you work for landlords with property near Shoeburyness station?
Yes, rental work is part of what we do. Just phone 0345 464 0079 or send us an email and tell us about the property, and we will give you a clear price.
Do you use backing rod?
Closed-cell backing rod sets the depth of the sealant and stops it sticking to the back of the joint. That way it bonds to the two sides only and can stretch.
How much does external mastic cost in North Shoebury?
It depends on the job, so we quote each one individually. To get one, ring 0345 464 0079 or email us and tell us what needs doing and where.
Where is Mr Mastic based?
We are based in Crawley, West Sussex, and we cover South East England, London and all of Scotland.
What should I tell you?
Tell us what needs doing and where. We’ll ask anything else we need to know.
Do you take out the old sealant first?
Yes. All of the old material is cut out and the joint cleaned.
Will you leave a mess?
Very little: the area around the joints is protected first, and we clear up the old sealant and our materials before we leave.
