Greater London · England
Limehouse External Mastic
External mastic in Limehouse from a team with over 20 years’ experience. Rated 4.9 on Google from 180+ five-star reviews.
- Old sealant gone brittle and cracked
- Water getting into walls through failed joints
- Plants rooting in failed movement joints
What external mastic looks like in Limehouse
London terraces and converted houses often share gutters, downpipes and walls, so it’s worth agreeing who is responsible before work starts. Historic houses like Sutton House (about 2.4 miles north) are a reminder that the area around Limehouse has older buildings as well as new. In older buildings, older walls and rooflines need a sealant that moves with them and suits the material.
Limehouse is in London, so parking needs planning: let us know about parking bays, permits or a driveway. Letting a property close to Limehouse station? Then split movement joints are easy to miss on a rental until damp shows inside. Schools such as Stepney Greencoat Church of England Primary School are buildings too, and its movement joints, gutters and trims need looking after like any other building’s.
Limehouse is about 2 miles east of Whitechapel, in Greater London. Anywhere in E14, our applicators can take on external mastic. Our area takes in 764 places across Greater London, large and small.
We work across the E14, E3 and E1 postcode area for external mastic. External mastic is available to properties on Oak Lane, Bale Road and Wharf Lane. You’ll find Limehouse on the A126, which makes it straightforward to reach with everything needed for external mastic. We also cover the places around Limehouse: Bow Common (1 mile east), Mile End (1 mile north), Ratcliff (1 mile south-west), Stepney (1 mile west) and Shadwell (1 mile south-west). Further out, we also cover London (3 miles south-west), City of Westminster (5 miles west), Marylebone (5 miles west), Kensington (7 miles west), St Pancras (4 miles west) and Walthamstow (5 miles north).
What’s near Limehouse
In Limehouse, that means homes and buildings near St Paul's Way Trust School, Stepney Green Mathematics and Computing College and Star Of The East Public House. There’s a railway station in Limehouse itself: Limehouse station. Other landmarks nearby include Surrey Quays Shopping Centre (1.6 miles south-west) and Tower of London (2 miles west). Green spaces nearby include St. James's Park Lake and Tower Hill.
External mastic in Limehouse
Movement joints let brickwork, render and cladding expand and shrink without cracking. The sealant in it has to stretch and squeeze for years, so once it splits or hardens, the joint stops working and water gets in. We work on copings & trims, render & cladding joints and façade panels, and the jobs we see most are sealant that has lost its bond to the brick or render and damp patches traced to an open external joint.
London’s terraces and conversions often share walls, gutters and downpipes with their neighbours, so one failed joint can cause damp for more than one household. In a converted house in Limehouse, it’s worth checking who is responsible for the outside before booking.
You are covered for a year from the day we finish. If anything is not right with it, phone 0345 464 0079 or email us.
- Place
- Limehouse (E14, E3, E1)
- Region
- Greater London
- Guarantee
- 12 months on all our work
- Quote
- A clear price before we start
- Telephone
- 0345 464 0079
- Page updated
- 26 October 2026
Landlords, agents and businesses in Limehouse
Failed sealant is one of the commonest items on a check-out report, and it’s easy to sort out between tenants. We can quote for more than one property at once.
Letting agents often deal with us directly. Tell us the address, the job and how access works and we’ll give you a quote.
How to look after the new joints
So the new joints stay in good condition:
- Keep water from gutters off the wall
- Keep high-pressure jets off the joints
- Act on the first splits you see
- Walk round the building once a year and look at the joints
Do not paint over the new sealant unless we’ve said the product is paintable. Many exterior sealants aren’t designed to be painted.
Water getting behind cladding or render can go unnoticed for a long time. By the time there’s a damp patch, the damage can be well established, so it’s worth resealing at the first signs.
Honest limits
We will always be straight with you, so here’s what new sealant won’t do:
- Cracks in the bricks or render themselves, away from the joints
- Damp from another source, such as a leaking gutter or a bridged damp-proof course
- Cutting new joints into brickwork, which is building work rather than sealant work
Not sure which it is? You can ring 0345 464 0079 or send us an email and we’ll tell you honestly.
What we seal
- Joints between brick and frames
- Render & cladding joints
- Concrete & block
- Copings & trims
- Façade panels
- Brickwork movement joints
Limehouse questions
Can you do external mastic in Limehouse?
Yes, Limehouse is within the area we cover. Our work covers London and the South East. You can ring 0345 464 0079 or email us and tell us what needs doing, and we’ll give you a clear price.
Can parking be tricky for a visit in Limehouse?
Parking in Limehouse, as in most of London, takes a little planning: a visitor permit or a nearby bay makes the day run more smoothly.
Can you match the colour of my brickwork?
Exterior sealants are made in a range of colours, from greys and browns to whites and stone shades. We choose the closest to your brick or render so the joint does not draw the eye.
Is the work guaranteed?
Yes. All our work carries our one-year guarantee.
Do you hold any approvals?
Yes. We are ARBOMaster approved, the scheme for applicators of Arbo sealants.
What do you put in the joint?
Products from Arbo and Everbuild, among others, picked for each joint. We’ll tell you what we’re using and why.
Why do you put foam in the joint first?
The foam is closed-cell backing rod. It keeps the sealant at the right depth and bonded to the sides only.
I rent my home. Can I book you?
Yes, but check with your landlord or agent first. Landlords are often happy for the work to be arranged.
Places near Limehouse
What else we do in Limehouse
What affects the quote in Limehouse
We quote each job individually. These are the things that affect it:
- Any mould that needs treating
- The number and length of the joints
- The number of rooms or windows
- Access and height
Homes and businesses are quoted the same way: the amount of work, the access and the products needed, along with when we can work on site. Call for a quick quote and we’ll explain what it covers.
Asking for a quote
When you contact us, it’s useful to know:
- Access, such as stairs, a lift or height
- Whether it’s a home or a business
- Whether it has been sealed before
- How many joints, rooms or windows are involved
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 photos by email if you can.
What we do, step by step
We keep the work tidy and contained to the joints we are treating, so you can get on with your day. The job usually takes anything from a few hours to several days, depending on the building. For a job in Limehouse, 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 will reach them.
- The old mastic and anything lodged in the joint is removed.
- We clean both faces of the joint and prime them where the product calls for it.
- Closed-cell backing rod is fitted to set the depth and stop three-sided bonding.
- We gun in a flexible exterior sealant in a colour that suits the wall and tool it neatly.
Before we arrive
- For business premises, tell us about site rules or sign-in
- Let us know about stairs, lifts or work at height
- Plan for the work area to be out of bounds to pets and children
Getting a quote
We don’t publish a price list, as no two jobs are quite the same. Instead, your job gets its own clear quote. To arrange one, phone 0345 464 0079 or email us.
Read more
How the job changes by surface
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.
Copings and trims
A failed coping joint lets water into the top of the wall. Resealing them is a small job that protects a lot.
Can I do it myself?
Not every job suits DIY: high-level joints, fire-rated gaps, external movement joints and big jobs call for the right materials, safe access and experience.
A DIY attempt doesn’t rule out a professional job. We cut it out and start again.