Greater London · England
External & façade joints in The Burroughs, Greater London
External mastic in The Burroughs from a team with over 20 years’ experience. 180+ five-star Google reviews and a 4.9 rating.
- Water getting into walls through failed joints
- Hard, crazed mastic that has stopped moving
- Brick movement joints where the sealant has split
Why it’s worth doing now in The Burroughs
Resealing a run of joints in one go is normally better than patching one at a time. They’ve weathered the same way and it means sorting access once. Converted houses in London often have a bathroom above someone else’s living room, and a slow leak from a failed seal can end up in the flat below. Dealing with it early is far simpler.
Some things make a job bigger or smaller: how much old sealant there is and how stubborn it is, whether mould needs treating, and whether the work is at height. Your quote takes all of that into account.
Why The Burroughs clients choose us
- Arbo and Everbuild products
- White, clear, grey or another colour, product permitting
- You choose the colour before work begins
- We are fully insured
How we handle external mastic in The Burroughs
For buildings in The Burroughs, we reseal external joints of all kinds, from brick movement joints to cladding panels. Every joint gets the same careful preparation: clean joint faces and the right depth. Typical jobs include sealant that has lost its bond to the brick or render and joints pointed up with cement by mistake, across façade panels, joints between brick and frames and brickwork movement joints.
Outside work in London starts with access: side passages, upper floors and where to park. In The Burroughs, joints up high may need ladders or other access, which is worth talking through when you book.
Big or small, you get the same 12-month guarantee.
- Location
- The Burroughs (NW4, NW9, NW11)
- Region
- Greater London
- Guarantee
- 12 months on all our work
- Price
- A clear quote up front
- Phone
- 0345 464 0079
- Updated
- 26 October 2026
Signs you need external mastic in The Burroughs
A lot of failed joints come down to preparation: dusty or wet faces, no primer where one was needed, or old sealant left in. The sealant never bonds properly.
Common reasons people contact us include:
- Weeds or debris growing in open joints
- Panel joints letting water in
- Hard, crazed mastic that has stopped moving
- Gaps where render, brick and frames meet
As a London address, The Burroughs can be tricky for parking: let us know about parking bays, permits or a driveway.
Questions to ask before you book
- How long to leave it before use
- Are they insured?
- What product goes in the joint
- How hidden problems are handled
DIY sealant or a professional job?
Overfilling a joint is a classic DIY mistake. A thick, smeared bead looks untidy and doesn’t move well, and the joint depth matters as much as the finish.
The difference is mostly in the preparation and the product. We take joints back to clean, dry surfaces, and the sealant is matched to the joint and its conditions, then guaranteed for a year.
How the visit works
There is not much for you to do on the day. Point us to the joints and we’ll get on with it. The job generally takes a few hours to a few days, depending on the length of joint and the access, including the tidy-up. In The Burroughs, flats, stairs and shared entrances are part of the routine. If the building has a concierge, managing agent or access rules, tell us when you book.
- 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.
- We apply the sealant, tool it and check the whole run.
How to prepare
- Where the joints are inside, avoid wetting them before we arrive
- Let us know about parking restrictions
- Plan for the work area to be out of bounds to pets and children
Get a quote
There’s no standard price list. Instead, we give you a clear price for your job. To arrange one, phone 0345 464 0079 or send us an email.
Advice
For landlords and businesses
In hotels, rooms out of use cost money, so the work can be planned room by room. We have worked in hotels as well as homes and businesses.
Water getting past a failed joint can damage the building, which matters even more when someone else lives there. Resealing at the right time is simple maintenance.
The Burroughs: your questions answered
Is parking a problem for a job in The Burroughs?
Parking in The Burroughs, as in most of London, takes a little planning: a visitor permit or a nearby bay makes the day run more smoothly.
Do you cover The Burroughs for external mastic?
Yes. Our work covers London and the South East, and The Burroughs is part of that. You can call 0345 464 0079 or drop us an email and tell us what needs doing.
Where do you work from?
We work from Crawley. We cover The Burroughs and the rest of Greater London.
How long before the joint can be used?
That depends on the sealant used, so follow the cure time we give you.
Is there a guarantee?
Yes, for a year. If there’s a problem with our work in that time, tell us and we’ll put it right.
Do you do commercial work?
Yes. We work in offices, washrooms, hotels and other commercial premises, as well as homes. Working times can be discussed when we quote.
Are you fully insured?
Yes, we’re fully insured for domestic and commercial work.
Which products do you use?
Quality sealants from brands including Arbo and Everbuild, chosen to suit the joint. We’ll tell you what we’re using and why.
Looking after it afterwards
Looking after new joints is easy:
- Look over the joints every year, ideally after winter
- Keep water from gutters off the wall
- Show decorators and builders where the movement joints are
- Leave the joints unpainted unless we have said otherwise
If you have more work done on the wall, such as new render, cladding or an opening, show the contractor the movement joints. They should be kept open and resealed, not filled.
Leave a failed movement joint and water keeps getting into the wall. That can lead to damp patches, staining and frost damage, all bigger jobs than a reseal.
Nearby places to The Burroughs
What else we do in The Burroughs
What external mastic looks like in The Burroughs
With historic houses such as Heath Hall (about 2.6 miles east) nearby, there’s older building stock in the area around The Burroughs as well as newer homes. Where a home is older, older brick and stone need a sealant that suits them, at the right joint depth. London terraces and converted houses often share gutters, downpipes and walls, so check who is responsible for the outside before booking.
If you live in an older home near St Mary's Church, old and new materials meet at the roofline and walls, which is where sealant earns its keep. For landlords with property near Hendon station, split movement joints are easy to miss on a rental until damp shows inside.
The Burroughs is about 2 miles south-east of Burnt Oak, in Greater London. We provide external mastic to homeowners, landlords and businesses in The Burroughs and nearby. 764 places in Greater London are on our list. There’s also a page for London, about 8 miles away.
Work in NW4, NW9 and NW11 is quoted and booked the same way as anywhere else. You will find streets such as Bell Lane, Eaton Road and Lodge Road, and we cover them all. The Burroughs is on the A41, so it’s easy for us to get to. We also cover the places around The Burroughs: Hendon (1 mile south-east), Colindale (1 mile west), Brent Cross (1 mile south-east), West Hendon (1 mile south-west) and The Hyde (1 mile south-west). Within a short drive, we also cover London (8 miles south-east), City of Westminster (6 miles south-east), Marylebone (6 miles south-east), Kensington (6 miles south), St Pancras (6 miles south-east) and Shoreditch (8 miles south-east).
Around The Burroughs
Typical jobs here are in homes near The Claddagh Ring pub, Brampton College and Kisharon College. The nearest railway station is Hendon station, roughly 0.8 miles south-west. Well-known places in the area include Church Farmhouse Museum (less than half a mile north) and Brent Cross Shopping Centre (0.8 miles south). Open spaces near The Burroughs include Parliament Hill and Darland's Lake.
When it is not the sealant
We’d rather tell you now than do work that won’t last, so here’s what sealant can’t put right:
- Failed render or damaged cladding panels
- Structural movement, which needs a surveyor or engineer
- Damp from another source, such as a leaking gutter or a bridged damp-proof course
Not sure which it is? You can phone 0345 464 0079 or drop us an email and we will tell you honestly.
Where we work in The Burroughs
- Joints between brick and frames
- Façade panels
- Copings & trims
- Brickwork movement joints
- Concrete & block
- Render & cladding joints