Southend-on-Sea · England
External Mastic in Southend-on-Sea
Problem with your movement joints in Southend-on-Sea? We remove the old material, prepare the joints and seal them properly, and the work is guaranteed for a year.
- Sealant pulling away from one side of the joint
- Movement joints filled with mortar instead of sealant
- Weeds or debris growing in open joints
External mastic in Southend-on-Sea, done properly
We’re ARBOMaster approved applicators, and each external joint gets a sealant suited to it. Porous or awkward surfaces are primed where the sealant needs it, and we don’t skip that step. Typical jobs include failed seals between different materials and water getting into walls through failed joints, across concrete & block, render & cladding joints and brickwork movement joints.
Larger buildings in Southend-on-Sea have plenty of movement joints, cladding joints and roofline trims. When those fail, water gets behind the face of the building, often unseen until it shows inside.
Our work is backed for twelve months, and the guarantee is the same wherever you are.
- Where
- Southend-on-Sea (SS2, SS0, SS9, SS1)
- Region
- Southend-on-Sea
- Guarantee
- A year, on every job
- Quote
- A clear price before we start
- Call
- 0345 464 0079
- Updated
- 26 October 2026
How we quote for external mastic
We quote each job individually. These are the things that affect it:
- Any working-time requirements on site
- The number of rooms or windows
- Whether the work is at height
- Which sealant suits the joint
What you pay reflects the work, not a rough estimate. That’s why we ask a few questions first and give you a clear price before any work starts.
What we need to know
A few details help us give you an accurate quote. When you get in contact, it helps to mention:
- What’s wrong with the joints now
- If someone has resealed it before
- Photos by email, if that is easy
- The rough size of the job
We quote each job on its own, so start by telling us what you need. Just phone 0345 464 0079 or send us an email with the details and send pictures if you have them.
The process
We keep the work tidy and contained to the joints we are treating. Expect the work to take a few hours for a handful of joints, longer for a whole elevation. In Southend-on-Sea, we work in everything from flats and family homes to offices and hotels. For each, it helps to know about access, parking and where the joints are.
- 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.
- The joint faces are cleaned and primed where the sealant needs 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.
Preparing for the visit
- Let us know about stairs, lifts or work at height
- Tell us if parking is tricky
- Tell us about any water getting in
How to get a quote
It all starts with a short chat. Tell us what’s wrong, where it is and how much there is. When it suits you, phone 0345 464 0079 or email us.
Advice
Landlords, agents and businesses in Southend-on-Sea
We regularly work with letting and managing agents. Tell us the address, the job and how access works and we will give you a quote.
Whether it’s one flat or a portfolio, the work is the same standard: the old material taken out, careful preparation and a 12-month guarantee.
Outside joints around Southend-on-Sea
Southend-on-Sea is close to the coast, where wind-driven rain is a fact of life and, nearer the shore, so is salt air. That’s hard on movement joints and outside wall joints, especially on the side facing the sea. London and the South East are among the drier parts of the UK, though outdoor sealant still has to go onto a dry joint, so the forecast decides the day.
Letting a property close to Prittlewell station? Then split movement joints are easy to miss on a rental until damp shows inside. For an older house near a landmark such as Church of St Mary, an extension built onto an older house moves differently, and the joint between them takes the strain. Managing a site like Westborough Academy? Then larger buildings have long runs of movement joint that eventually need resealing.
Southend-on-Sea is about 34 miles east of London, in Southend-on-Sea. Wherever you are in the SS2 postcode area, we can carry out external mastic at your property. Our area takes in 16 places across Southend-on-Sea, from the larger towns to small villages. Our Chelmsford page covers work nearby, about 16 miles away.
All of SS2, SS0, SS9 and SS1 is covered for external mastic, from the main roads to the quietest streets. External mastic is available to properties on London Road, Station Road and Maple Square and the roads around them. Southend-on-Sea sits on or near the A13 and A127, which makes travel easy. Neighbouring places we cover for external mastic include Westcliff-on-Sea (1 mile south-west), Milton (1 mile south), Chalkwell (1 mile west), Leigh-on-Sea (2 miles west) and Eastwood (2 miles north-west). Within a short drive, we also cover Shoeburyness (4 miles east), North Shoebury (4 miles east), Great Wakering (5 miles east) and Thorpe Bay (3 miles east).
Local landmarks in Southend-on-Sea
Locally, jobs take us to homes and businesses close to The Railway Hotel, Prittlewell Square and Southend High School for Boys and the streets around them. The closest station to Southend-on-Sea is Prittlewell station, roughly 0.6 miles east of the centre. Nearby you’ll also find Southend University Hospital (0.6 miles north-west) and Southend Historic Aircraft Museum (0.9 miles north). The countryside around Southend-on-Sea includes Two Tree Island.
Your questions about external mastic in Southend-on-Sea
I let a flat near Prittlewell station. Can you help?
Yes. We work for letting agents and landlords as well as homeowners, and several properties can go on one quote. Just call 0345 464 0079 or drop us an email with the address and what needs doing, and we’ll give you a clear quote.
Is external mastic in a coastal place like Southend-on-Sea any different?
Coastal weather is harder on outside sealant: there’s more wind-driven rain and, closer to the shore, salt in the air. The right product, a clean joint and the right depth all help it cope.
Can you work on commercial sites?
Yes. Commercial and hotel work is a large part of what we do. We can talk about working times when we quote.
Can you seal joints between two different materials?
Yes. The old joint is removed, both surfaces cleaned and primed where needed, and a flexible sealant applied. We pick a colour that works with both materials.
Do you use backing rod?
The foam is closed-cell backing rod. It keeps the sealant at the right depth and bonded to the sides only.
Do the sealants smell?
There can be a smell while the sealant cures, which fades as it sets. Ventilation helps.
Will the new joint stand out?
We aim for a joint that suits the wall rather than one that jumps out. We’ll talk through colour options before we start from the range available.
Do you remove the old sealant?
Yes. All of the old material is cut out and the joint cleaned before resealing.
Towns and villages near Southend-on-Sea
Other services in Southend-on-Sea
DIY sealant or a professional job?
Some sealant jobs are within reach of a careful DIYer, such as a straightforward joint indoors. Where it goes wrong is sealing over the old bead, working on a wet joint or overloading the gap.
What a professional job adds is preparation and the right product. We take joints back to clean, dry surfaces, and the sealant is chosen for how the joint moves and where it is.
When it is not the sealant
New sealant can’t fix everything, and we’d rather say so up front. Sealant won’t put right:
- Damp that isn’t coming from the joint
- Structural movement, which needs a surveyor or engineer
- Cutting new joints into brickwork, which is building work rather than sealant work
Not sure which it is? You can phone 0345 464 0079 or email us and we will tell you honestly before booking.
Surfaces we seal
- Brickwork movement joints
- Façade panels
- Joints between brick and frames
- Copings & trims
- Render & cladding joints
- Concrete & block
Keeping the joints in good condition
No joint lasts for ever, but care makes a real difference. A few tips:
- Keep water from gutters off the wall
- Tell anyone working on the walls about the movement joints
- Keep high-pressure jets off the joints
- Have failed joints looked at early
Give the sealant the cure time we tell you before anything rubs against it. The surface skins over quickly, but full cure takes longer.
Act while the splits are small. Then it’s a straightforward cut-out and reseal before water has had years to get in.
Surface by surface
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.
Cladding and façade panels
Cladding and façade panels are normally separated by sealed joints. We reseal them with a sealant suited to the panel material.