Greater London · England
External & façade joints in Canning Town, Greater London
Specialist external mastic for Canning Town: the right sealant, proper preparation and a neat finish. Ask us for a quick quote.
- Failed seals between different materials
- Sealant that has lost its bond to the brick or render
- Old sealant gone brittle and cracked
Landlords, agents and businesses in Canning Town
From a single let to a portfolio, you get the same standard of work: old sealant fully removed, joints prepared properly and a 12-month guarantee.
We work for landlords and agents as well as homeowners. Sealant work between tenants is a simple way to keep a property in good order before the next move-in.
External mastic in Canning Town, done properly
We cut out failed sealant, set the joint depth with closed-cell backing rod and reseal with a low-modulus exterior sealant. The colour is chosen to suit the brick or render. We’re often asked to deal with damp patches traced to an open external joint and moss and dirt in joints with no sealant left, on copings & trims, joints between brick and frames and façade panels.
In London terraces and converted houses, gutters and walls are often shared with the house next door, so one failed joint can cause damp for more than one household. In a converted house in Canning Town, it’s worth checking who is responsible for the outside before booking.
We guarantee the work for a year. If something isn’t right with it in that time, tell us and we will put it right.
- Where
- Canning Town (E16, E13, E6)
- Wider area
- Greater London
- Guarantee
- 12 months on all our work
- Quotes
- Quoted before any work starts
- Phone
- 0345 464 0079
- Updated
- 26 October 2026
Canning Town: your questions answered
Do you cover Canning Town for external mastic?
Yes, Canning Town is within the area we cover. Our work covers London and the South East. Just phone 0345 464 0079 or send us an email with a few details of the job.
Is parking an issue for external mastic in Canning Town?
Parking in Canning Town, as in most of London, takes a little planning: a visitor permit or a nearby bay makes the day run more smoothly.
Are you an approved applicator?
Yes. We hold ARBOMaster approved applicator status and we are fully insured too.
Do I need to be at home?
For indoor joints, yes, someone needs to let us in. Once we’ve agreed the job, you do not need to watch us work.
When is the sealant fully cured?
Many sealants skin over quickly but take longer to cure fully. We’ll tell you how long to leave the joint before we leave.
Do you do commercial work?
Yes. We have worked for hotels, offices and other businesses and we’re fully insured.
Where is Mr Mastic based?
Our base is in Crawley, West Sussex, and we cover South East England, London and all of Scotland.
What do you need from me for a quote?
Only a few details: where it is, what you’ve noticed and how we reach it. Then phone 0345 464 0079 or send us an email.
When to call us in Canning Town
UV, rain and frost all age exterior sealant. In time it goes hard, crazes on the surface and stops stretching, so the joint eventually tears or comes away from one side.
Most people get in touch when they notice one of these:
- Old sealant gone brittle and cracked
- Movement joints filled with mortar instead of sealant
- Gaps where render, brick and frames meet
- Moss and dirt in joints with no sealant left
As a London address, Canning Town can be tricky for parking: let us know about parking bays, permits or a driveway.
What to look for in a quote
- Whether VAT is included
- Whether the sealant suits the joint
- How the joint is cleaned and prepared
- Whether you can choose the colour
Places near Canning Town
Also in Canning Town
How to look after the new joints
Aftercare is simple:
- Keep soil, plants and ivy away from the joints
- Keep movement joints as flexible joints, not mortar
- Keep high-pressure jets off the joints
- Look over the joints every year, ideally after winter
Give the sealant the cure time we tell you before anything rubs against it. Most exterior sealants skin fast but take longer to cure right through.
Leaks behind façade panels and render often go unseen. When it finally shows inside, the joint may have been open for years so early resealing is worth it.
Different surfaces, different methods
Cladding and façade panels
Panels heat up and cool down quickly, so the joints work hard every day. We choose the product to suit.
Joints between dissimilar materials
Joints where frames, sills or panels meet the wall are common leak points. We cut out the old sealant and reseal with a product suited to both surfaces.
Can I do it myself?
If you are set on DIY, put the effort into preparation: remove every trace of old sealant, clean and dry the joint, and follow the product’s cure time. If it does not work out, we can still put it right.
The biggest DIY mistake is sealing over old sealant. New silicone will not bond to old, so it lifts and traps water and mould underneath. Everything old must be removed first.
Canning Town buildings and the weather
Historic houses like Queen's House (about 2.7 miles south-west) are a reminder that the area around Canning Town has older buildings as well as new. Where a home is older, older brick and stone need a sealant that suits them, at the right joint depth. In terraces and conversions, gutters and walls are often shared with the neighbours, so it’s worth agreeing who is responsible before work starts.
Managing a site like Rosetta Primary School? Then larger buildings have long runs of movement joint that eventually need resealing. For an older house near a landmark such as St Cedd's Church, older walls, gutters and the joints where extensions meet them need a flexible sealant.
Canning Town is about 5 miles east of London, in Greater London. For external mastic in and around Canning Town, please call 0345 464 0079 or send us an email for a quick quote. We cover Greater London from our Crawley base. Our Greater London coverage runs to 764 places, Canning Town among them.
Every address in E16, E13 and E6 is within our area for external mastic, from the main roads to the quietest streets. We cover properties on Ivy Road, Star Lane and Bell Lane and the roads around them. Being close to the A1020, Canning Town is easy for our applicators to reach for external mastic. If you are just outside Canning Town, we cover Custom House (1 mile south), Plaistow (1 mile north), Limmo Peninsula (1 mile west), West Silvertown (1 mile south) and Leamouth (1 mile west). Further out, we also cover London (5 miles west), City of Westminster (8 miles west), Marylebone (7 miles west), Kensington (10 miles west), St Pancras (6 miles west) and Shoreditch (5 miles west).
What’s near Canning Town
Locally, jobs take us to homes and businesses close to Royal Docks Academy, Keir Hardie Park and The Royal Docks Community School and the streets around them. There’s a railway station in Canning Town itself: Custom House station. Well-known places in the area include Greenwich Castle (2.8 miles south-west) and West Ham United Football Club Museum (1.4 miles north-east). The countryside around Canning Town includes Gilbert's Pit and Hollow Pond.
Leave it or put it right?
An open joint keeps letting water into the wall with every downpour. In cold weather, frost can damage wet brick and render near the open joint, so the problem grows beyond the joint itself. Damp from a failed joint spreads quietly in older London brickwork and timber, and once it shows in Canning Town, the repair is bigger than a sealant job.
We do not show prices on the website, because the cost depends so much on the job itself. Call for a quick quote and we will talk you through it.
Why Canning Town customers choose us
- Colour agreed with you before any work starts
- Tidy, careful work
- Approved under the ARBOMaster scheme
- A 12-month guarantee on all work
See our cost guide and customer reviews.
How it works
You don’t 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 to a few days, depending on the length of joint and the access in most cases. For a job in Canning Town, parking and access are the things to plan: let us know about parking, the floor we’ll be working on and any lift or shared entrance.
- We start by checking each joint, agreeing the ones to redo and how we’ll reach them.
- Old sealant and any debris are cut and raked out.
- The joint faces are cleaned and primed where the sealant needs it.
- Backing rod goes in next, setting the depth and keeping the sealant off the back of the joint.
- A flexible exterior sealant is applied and tooled in a colour to suit the wall.
Getting ready for the visit
- For business premises, tell us about site rules or sign-in
- Mention any parking rules near the property
- 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, and we’ll talk you through what we’d do. When it suits you, call 0345 464 0079 or email us.