Essex · England
Canvey Island External Mastic
Sealing brickwork movement joints, render, cladding and façade joints for homes and businesses in Canvey Island and across Essex. ARBOMaster approved applicators, fully insured, with a 12-month guarantee.
- Water getting into walls through failed joints
- Weathered mastic that no longer stretches
- Weeds or debris growing in open joints
How we handle external mastic in Canvey Island
Joints in render and cladding are easy to overlook until a damp patch appears. We inspect them, agree which need doing and reseal with a weatherproof, flexible sealant in a colour to suit. Common call-outs are for failed sealant between panels on a façade and sealant pulling away from one side of the joint, on joints between brick and frames, façade panels and concrete & block.
In a town like Canvey Island, older houses with traditional gutters sit alongside newer estates with uPVC rooflines and rendered walls. All of those joints move, so they need a flexible sealant rather than a rigid filler.
Our work is backed for twelve months.
- Location
- Canvey Island (SS8)
- Region
- Essex
- Cover
- A year, on every job
- Quotes
- A clear price before any work starts
- Phone
- 0345 464 0079
- Updated
- 26 October 2026
Should I try it myself first?
A careful DIYer can reseal a simple joint, like a short, easy-to-reach joint indoors. Where it goes wrong is sealing over the old bead, working on a wet joint or overloading the gap.
The difference is mostly in the preparation and the product. Joints are cleaned back to sound surfaces and dried, and the sealant is matched to the joint and its conditions, then guaranteed for a year.
Nearby places to Canvey Island
More services for Canvey Island
What the job involves on each surface
Concrete and blockwork
Concrete faces can be dusty and porous, so preparation is key. A primer goes on where the product requires one before sealing.
Brickwork movement joints
Brick moves with heat and moisture, and grows a little over time. That movement goes into the joint, so the sealant in it must stay soft and stretchy.
Outside joints around Canvey Island
Canvey Island is within about 1 mile 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. Compared with the north and west, the South East gets less rain, yet outdoor joints still have to be sealed dry, so jobs are booked with the weather in mind.
For landlords with property near Benfleet station, split movement joints are easy to miss on a rental until damp shows inside. In the older streets around St Nicholas, the joints between older walls, newer extensions and the roofline need a sealant that can move.
Canvey Island is about 6 miles south-east of Basildon, in Essex. Across the SS8 area, we cover external mastic for homes and businesses. We cover 644 towns and villages across Essex. We also work in Chelmsford, about 15 miles from Canvey Island.
Our applicators cover all of SS8 for external mastic. Whether your property is on Brooklands Square, High Street and Station Road or a nearby road, we can help. Main roads around Canvey Island include the A130 and B1014. Close by, we work in South Benfleet (3 miles north), Thundersley (3 miles north), Tarpots (3 miles north-west), Coryton (3 miles west) and Bowers Gifford (4 miles north-west). We also work in nearby towns such as Chelmsford (15 miles north), Basildon (6 miles north-west), Brentwood (14 miles north-west), Maldon (15 miles north), Billericay (10 miles north-west) and Rayleigh (5 miles north). Being one of Essex’s larger places, Canvey Island has homes, rented property and businesses of every kind.
Near you in Canvey Island
Typical jobs here are in homes near Furtherwick Park School, Canvey Lake and The Monico pub and the streets around them. Canvey Island’s nearest station is Benfleet station, about 1.8 miles north-west of the centre. Nearby you’ll also find Bay Museum (0.7 miles south) and Hadleigh Castle (1.9 miles north-east). Green spaces nearby include West Canvey Marshes RSPB reserve.
What happens on the day
All our tools and materials come with us in the van. Once we have agreed what’s being done, the area is protected and the work begins. Most jobs take a few hours for a handful of joints, longer for a whole elevation. Parking in a town like Canvey Island is normally straightforward, but tell us if there’s a driveway or any restrictions, and mention if the work is upstairs, in a flat or high on the outside.
- 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.
- Joint faces are cleaned back and primed if the sealant needs it.
- Backing rod sized to the joint goes in to set the depth.
- We apply the sealant, tool it and check the whole run.
How to prepare
- Let us know about parking restrictions
- Mention any sign-in or site rules at work premises
- Mention any leaks or damp you’ve noticed
How to get a quote
The more we know about the job, the more useful the quote. Let us know the location, the problem and roughly how many joints, and add pictures by email if you can.
Read more
For landlords and businesses
In hotels, rooms out of use cost money, so the work can be planned room by room around your bookings where we can. We have worked in hotels as well as homes and businesses.
We work for letting agents and landlords as well as householders. Sealant work between tenants is a simple way to keep a property in good order.
What happens if it’s left?
A failed movement joint lets water into the wall and can run behind render or cladding. Resealing early keeps the job to the joint itself, instead of the wall and finishes around it. Gaps in sealant and mould in the bead never get better on their own, and in a busy household in Canvey Island they spread with every shower and every downpour. Replacing the sealant now is the simplest fix.
There are no prices on our website, because the cost depends so much on the job itself. Call for a quick quote.
Why book with us
- Approved under the ARBOMaster scheme
- We leave the area clean and tidy
- Sealant colour chosen to suit
- One-year guarantee on every job
What we are called out for in Canvey Island
Sometimes a movement joint was filled with mortar or a rigid filler, often by someone who didn’t know what it was for. With the joint locked solid, the movement turns into cracks elsewhere in the wall.
Most people get in touch when they notice something like this:
- Joints pointed up with cement by mistake
- Brick movement joints where the sealant has split
- Plants rooting in failed movement joints
- Old sealant gone brittle and cracked
Managing a site like St Josephs Catholic Primary School? Then movement joints, cladding joints and gutters on larger buildings need the same care as a house’s.
Before you book anyone
- Who does the work, and how experienced they are
- How the surfaces are prepared before sealing
- What insurance they hold
- Whether the sealant suits the joint
How we quote for external mastic
The price is agreed before any work begins. It’s based on:
- The amount of work
- Working hours on commercial sites
- Any mould that needs treating
- How much old sealant there is and how hard it is to remove
What you pay reflects the work, not a rough estimate. That’s why we ask about the job first and give you a clear quote before work begins.
What to tell us for a quote
What to tell us when you ask for a quote:
- Photos by email, if that is easy
- The problem you’ve noticed
- Access, such as stairs, a lift or height
- How many joints, rooms or windows are involved
For a quick quote, get us on the phone, or send an email if you’d rather. Describe what needs sealing and we will explain what’s involved and give you a clear quote.
Canvey Island questions
Do you work for landlords with property near Benfleet station?
Yes, rental work is part of what we do. You can phone 0345 464 0079 or email us with the address and a few details, and we will give you a fixed price before work begins.
Do you cover Canvey Island for external mastic?
Yes. We work across London and the South East, and Canvey Island is part of that. You can ring 0345 464 0079 or email us and let us know what needs doing.
Do the sealants smell?
That depends on the sealant. Some products have a noticeable smell, others very little, and any smell fades as they cure.
Can I do it myself?
That depends on the joint. Work at height, movement joints, fire-rated gaps and large areas are best left to a professional, while a short indoor joint may be within reach.
Can new sealant go over the old?
No. Fresh sealant does not stick to old sealant, and anything trapped underneath, including mould and water, stays there. It all has to come out first.
How long will you be here?
A typical job takes anything from a few hours to several days, depending on the building. We’ll confirm how long when we quote.
Is it messy?
No. The area is protected while we work and cleaned up afterwards.
How long before the joint can be used?
Different products cure at different speeds, so please follow the time we give you when we finish.