Greater London · England
External & façade joints in Cubitt Town, Greater London
External mastic across Cubitt Town and nearby, with every bit of old sealant taken out first and a 12-month guarantee.
- Sealant pulling away from one side of the joint
- Weeds or debris growing in open joints
- Movement joints with cracked, split or missing sealant
About our external mastic in Cubitt Town
As ARBOMaster approved applicators, we choose exterior sealants to suit the joint and the surfaces. Porous or awkward surfaces are primed where the sealant needs it, and we do not skip that step. We work on brickwork movement joints, façade panels and copings & trims, and the jobs we see most are rigid filler in a joint that should flex and damp patches traced to an open external joint.
London’s terraces and conversions often share walls, gutters and downpipes with their neighbours, so a leaking gutter joint or failed wall joint can affect more than one home. For a flat in Cubitt Town, check the lease for who looks after the outside.
Big or small, you get the same 12-month guarantee.
- Where
- Cubitt Town (E14, SE10, E22)
- Region
- Greater London
- Guarantee
- One year on every job
- Price
- A clear quote up front
- Call
- 0345 464 0079
- Last updated
- 26 October 2026
Leave it or put it right?
The longer a joint stays open, the more water the wall takes in. In cold weather, frost can damage wet brick and render, so the problem grows beyond the joint itself. In London conversions, one flat’s bathroom is often above another flat’s ceiling, and a slow leak from a failed seal can end up in the flat below. Putting it right early is much less trouble.
Rather than a set price list, we look at what your job involves: how many joints, what’s in them now and how we reach them. The price is agreed before we begin.
Why Cubitt Town clients choose us
- Domestic, commercial and hotel work
- 4.9 on Google from 180+ five-star reviews
- Colour agreed with you before any work starts
- Anti-fungal sanitary silicone in wet areas
See our cost guide or our reviews.
Cubitt Town: your questions answered
I let a flat near Canary Wharf station. Can you help?
Yes. We work for landlords and agents as well as householders, and several properties can go on one quote. Just phone 0345 464 0079 or send us an email with the address and what needs doing, and we’ll send you a clear quote.
Is parking a problem for a job in Cubitt Town?
Parking in Cubitt Town, as in most of London, takes a little planning: a visitor permit or a nearby bay makes the day run more smoothly.
Do you seal joints where cladding meets other 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 take out the old sealant first?
Yes. Sealing over old sealant is the main reason resealing fails early, so we never do it.
How much does external mastic cost in Cubitt Town?
There’s no set price, as it depends on the job: its size, the old material, access and the product needed. You will get a clear quote before any work starts.
How long before the joint can be used?
Most sealants are touch-dry well before they’re fully cured. We’ll give you the cure time for the product we used.
Is the work guaranteed?
Yes: twelve months. If anything is not right with the work within the year, let us know and we will sort it.
Why do you put foam in the joint first?
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.
DIY versus a professional finish
Some jobs are best left to a professional: work at height, external movement joints, fire-rated sealant and large areas call for the right materials, safe access and experience.
Some sealant jobs are within reach of a careful DIYer, such as a straightforward joint indoors. The common mistakes are sealing over old sealant, sealing a damp joint and using far too much.
Looking after it afterwards
After the cure time, these simple habits help:
- Have failed joints looked at early
- Never let anyone fill a movement joint with mortar
- Check external joints each spring
- Ask before painting over external sealant
Have a quick look at the joints each spring. 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.
What affects the quote in Cubitt Town
You will get a clear quote before work begins. It takes into account:
- The old material and how stubborn it is
- Working hours on commercial sites
- The number of rooms or windows
- The number and length of the joints
What it costs depends on the size of the job, how much old material has to come out and access to the work. You’ll have a clear quote before any work starts.
Asking for a quote
To make quoting easier, please include:
- Whether it has been sealed before
- Whether it’s a home or a business
- Where the job is, and your postcode
- How we’d reach the joints
For a quick quote, get us on the phone, or email us if that’s easier. Describe what needs sealing and we will talk you through the work before giving you a price.
Outside joints around Cubitt Town
London terraces and converted houses often share gutters, downpipes and walls, so check who is responsible for the outside before booking. 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.
Managing a site like Cubitt Town Infants' School? Then its movement joints, gutters and trims need looking after like any other building’s. As a London address, Cubitt Town can be tricky for parking: let us know about parking bays, permits or a driveway. Letting a property close to Canary Wharf station? Then failed wall and movement joints let damp in, so they’re worth checking between tenancies.
Cubitt Town is about 1 mile north of Greenwich, in Greater London. Homes, rented property, offices and hotels in Cubitt Town is covered for external mastic, old or new, large or small. Every job comes with our one-year guarantee. We cover 764 towns and villages across Greater London.
Work in E14, SE10 and E22 is quoted and booked the same way as anywhere else. Streets in the area include Undine Road, Amsterdam Road and Preston's Road, all of which we cover. You will find Cubitt Town on the A1206, which makes it straightforward to reach with everything needed for external mastic. Nearby, we also carry out external mastic in North Greenwich (1 mile south-west), Isle of Dogs (1 mile south-west), Millwall (1 mile south-west), Maze Hill (1 mile south) and Greenwich (1 mile south). Further out, we also cover London (4 miles west), City of Westminster (6 miles west), Marylebone (6 miles west), Kensington (8 miles west), St Pancras (5 miles west) and Shoreditch (4 miles north-west).
Landmarks near Cubitt Town
Typical jobs here are in homes near Tower Hamlets College, Mudchute Park and Farm and Canary Wharf College 3 and the streets around them. Cubitt Town’s nearest station is Canary Wharf station, about 0.8 miles north-west. Well-known places in the area include Greenwich Castle (1.4 miles south) and Poplar Hospital (1 mile north). For a walk, there’s Sue Godfrey Nature Park and Tower Hill.
Honest limits
Honest advice matters more to us than a booking, so here’s what new sealant won’t do:
- Loose or hollow render, which needs re-rendering
- Walls that need new movement joints cut into them
- Rising or penetrating damp from elsewhere in the wall
If you are not sure, just ring 0345 464 0079 or drop us an email and we’ll give you a straight answer before you book.
What we seal
- Joints between brick and frames
- Concrete & block
- Render & cladding joints
- Copings & trims
- Brickwork movement joints
- Façade panels
Towns and villages near Cubitt Town
Also in Cubitt Town
Work for landlords, hotels and businesses
If you manage several properties in or around Cubitt Town, several properties can go on one quote. Send us the addresses and the work at each.
In hotels, rooms out of use cost money, so we plan the work room by room. Hotel work is part of what we do, alongside homes and businesses.
What we do, step by step
Most of a good job is in the preparation, and we do not rush it. Every joint is cleaned and dried before new material goes in. All told, the work takes anything from a few hours to several days, depending on the building. In a London area like Cubitt Town, the main things to plan are parking and access: tell us about permits, visitor bays or off-street space, which floor we’re working on and whether there’s a lift.
- We start by walking round the building and agreeing the joints and the access.
- Every bit of old sealant and any mortar or debris is cut out.
- Joint faces are cleaned back and primed if the sealant needs it.
- Backing rod sized to the joint goes in to set the depth.
- The exterior sealant is applied, tooled and checked along its length.
Preparing for the visit
- On commercial sites, let us know about site rules
- Try not to wet indoor joints just before the visit
- Let us know about parking restrictions
Getting a quote
Want a quote for external mastic? Please phone 0345 464 0079 or email us and tell us about the job. You will know what we plan to do, and what it will cost, before any work begins.