Greater London · England
External & façade joints in Old Oak Common, Greater London
Movement joints in Old Oak Common need attention? We cut out the old, prepare the joints and apply the right sealant, with a 12-month guarantee.
- Weathered mastic that no longer stretches
- Joints where the bead has come unstuck
- Weeds or debris growing in open joints
External mastic in Old Oak Common, done properly
Short cuts in external joints show up within a season or two. New sealant over old, joints packed with mortar and beads with no backing all tend to fail early. We take the old material out and do it properly. If you have moss and dirt in joints with no sealant left and panel joints letting water in, we can help, whatever the surface.
Newer London blocks are built with movement joints in brick and render, and with cladding joints sealed with mastic. Older terraces have their own weak points: gutter joints, roofline trims and the joint where an extension meets the original wall, and both kinds of building are found across London.
All of our work is guaranteed for twelve months, and the guarantee is the same wherever you are.
- Place
- Old Oak Common (NW10, W3, NW26)
- Region
- Greater London
- Cover
- A year, on every job
- Quote
- A clear quote up front
- Call
- 0345 464 0079
- Last updated
- 26 October 2026
The process
Good joint work is mostly preparation, so that is where we spend the time. Every joint is cleaned and dried before new material goes in. All told, the work takes a few hours for a handful of joints, longer for a whole elevation. In Old Oak Common, as in most of London, parking needs a little planning. A visitor permit or a nearby bay makes the visit run more smoothly.
- We inspect the joints and agree which need resealing and how they’ll be reached.
- 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.
- Backing rod goes in next, setting the depth and keeping the sealant off the back of the joint.
- The new sealant, chosen to suit the brick or render, is applied and tooled to a neat finish.
Before we arrive
- Keep children and pets away from the work area
- Mention any tricky access
- Let us know if you’ve seen damp or leaks
How to get a quote
There’s no standard price list, because every job is different. Instead, we give you a clear price for your job. To arrange one, ring 0345 464 0079 or send us an email.
Advice
Surface by surface
Joints between dissimilar materials
Brick against render, concrete against metal, stone against timber: every change of material is a joint. A flexible sealant bridges the two.
Render joints
Cracks along render joints let water in behind the coat. A sound joint keeps the render dry behind and protects the render itself.
What external mastic looks like in Old Oak Common
Rainfall in the South East is lower than in much of the UK, yet outdoor joints still have to be sealed dry, so jobs are booked with the weather in mind. Historic houses like Kelmscott House (about 2.5 miles south) are a reminder that the area around Old Oak Common has older buildings as well as new. In older buildings, older brick and stone need a sealant that suits them, at the right joint depth.
Letting a property close to Willesden Junction station? Then outside joints that have cracked can let damp into a rental, so check them between lets. Old Oak Common is in London, so parking needs planning: let us know about parking bays, permits or a driveway.
Old Oak Common is about 1 mile south of Harlesden, in Greater London. Old Oak Common gets the same service as everywhere we cover: the old material taken out, joints prepared properly and a 12-month guarantee. Our Greater London coverage runs to 764 places, and Old Oak Common is one of them. There’s also a page for London, about 7 miles away.
We cover every part of the NW10, W3 and NW26 postcode area for external mastic and the streets around it. Whether your property is on Atlas Road, Tubbs Road and Waldo Road or a nearby road, our applicators can take on the job. We also cover College Park (1 mile north-east), Harlesden (1 mile north), Kensal Green (1 mile east), Park Royal (1 mile west) and North Kensington (1 mile east). We also work in nearby towns such as London (7 miles east), City of Westminster (4 miles east), Marylebone (4 miles east), Kensington (3 miles south-east), St Pancras (6 miles east) and Shoreditch (7 miles east).
Landmarks near Old Oak Common
In Old Oak Common, that means homes and buildings near Green Man Public House, Library for Iranian Studies and Star Chamber Academy and the streets around them. Nearby too are Little Wormwood Scrubs (0.8 miles east) and St Claudine's Catholic School for Girls (0.8 miles north). There’s a railway station in Old Oak Common itself: Willesden Junction station. Other landmarks nearby include Westfield London (1.7 miles south-east) and Hammersmith Hospital (0.8 miles south-east). The countryside around Old Oak Common includes Hanger Hill Wood and Campden Hill.
Signs you need external mastic in Old Oak Common
Some movement joints have been pointed up with mortar by mistake. With the joint locked solid, the movement turns into cracks elsewhere in the wall.
Any of these means the joints need attention:
- Moss and dirt in joints with no sealant left
- Damp patches traced to an open external joint
- Brick movement joints where the sealant has split
- Joints pointed up with cement by mistake
For an older house near a landmark such as Church of Eritrean Orthodox Brent, the joints between older walls, newer extensions and the roofline need a sealant that can move.
Comparing quotes
- Is the old sealant removed completely?
- The length of the guarantee
- What the cure time is
- What insurance they hold
For landlords and businesses
From a single let to a portfolio, the work is the same standard: the old material taken out, careful preparation and a 12-month guarantee.
For anyone letting property in or around Old Oak Common, several properties can go on one quote. Send us the addresses and the work at each, and photos by email help.
FAQs for Old Oak Common
Can parking be tricky for a visit in Old Oak Common?
London parking needs a little planning, so let us know about permits, bays or a driveway when you book. The visit is then planned around what’s available.
I let a flat near Willesden Junction station. Can you help?
Yes, landlords and agents are among the people we work for, and several properties can be quoted together. Just ring 0345 464 0079 or send us an email with the address and what needs doing, and we will send you a clear quote.
Is it messy?
We keep the work tidy. Nearby surfaces are protected, and the area is left clean when we finish.
How much does external mastic cost in Old Oak Common?
We do not publish prices, because the cost depends on the job: how much there is, what’s there now, how we reach it and what it needs. We agree the price before any work begins.
What do you need from me for a quote?
The location, the problem and the rough size of the job. If you can, email a few photos.
Can I do it myself?
It depends on the job. High-level, external movement and fire-rated joints are professional jobs, while a short indoor joint may be within reach.
Can you seal joints between render and window frames?
Yes. Where different materials meet is one of the most common joints we seal. We use a flexible sealant suited to both surfaces, primed where needed.
Why do you put foam in the joint first?
Closed-cell backing rod sets the depth of the sealant and stops it sticking to the back of the joint. Then the sealant bonds to two faces and can move.
Should I try it myself first?
Some jobs are best left to a professional: high-level joints, fire-rated gaps, external movement joints and big jobs call for the right materials, safe access and experience.
If you’ve already had a go yourself, that’s fine. We cut it out and start again, so just mention it when you contact us.
Also near Old Oak Common
What else we do in Old Oak Common
What affects the cost of external mastic
We don’t publish a price list. What we look at:
- How many areas need sealing
- How much old sealant there is and how hard it is to remove
- The number and length of the joints
- When we can work, for business premises
Rather than a set price list, we look at what your job involves: the amount of work, the old material and the access. You will know the price before we begin.
What we need to know
What to tell us when you ask for a quote:
- The problem you’ve noticed
- Where the property is
- Whether it’s a home or a business
- If someone has resealed it before
Every job is quoted individually. Just call 0345 464 0079 or email us with the details and send pictures if you have them.
Looking after it afterwards
After the cure time, these simple habits help:
- Show decorators and builders where the movement joints are
- Look over the joints every year, ideally after winter
- Have failed joints looked at early
- Check the sealant is paintable before painting near it
If you have more work done on the wall, such as new render, cladding or an opening, show the contractor the movement joints. They must stay as flexible joints, never rendered or pointed over.
If you can see gaps, plants or bare sections in a joint, have it checked. Earlier resealing means a smaller job and a better result.