Greater London · England
External & façade joints in Uxbridge, Greater London
Movement joints in Uxbridge need attention? We cut out the old, prepare the joints and apply the right sealant.
- Panel joints letting water in
- Movement joints filled with mortar instead of sealant
- Gaps where render, brick and frames meet
Outside joints around Uxbridge
Historic houses like Ickenham Hall (about 2.2 miles north-east) are a reminder that the area around Uxbridge 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. London terraces and converted houses often share gutters, downpipes and walls, so it’s worth agreeing who is responsible before work starts.
In the older streets around Church of St Andrew, older walls, gutters and the joints where extensions meet them need a flexible sealant. If you let a flat or house near West Drayton station, split movement joints are easy to miss on a rental until damp shows inside.
Uxbridge is about 3 miles north-west of Hayes, in Greater London. Anywhere in UB8, our applicators can take on external mastic. Uxbridge is one of 786 places in Greater London we cover.
Our applicators cover all of the UB8, UB10 and UB9 postcode area for external mastic and the streets around it. Whether your property is on York Road, Lawn Road and How's Road or a nearby road, our applicators can take on the job. You’ll find Uxbridge on the A4007, so it’s easy for us to get to with everything needed for external mastic. Close by, we work in Cowley (1 mile south), New Denham (1 mile north-west), Hillingdon (1 mile east), Ickenham (2 miles north-east) and Yiewsley (2 miles south). Larger places within reach include City of Westminster (14 miles east), Marylebone (14 miles east), Kensington (12 miles east), Hampstead (13 miles east), Ruislip (4 miles north-east) and Brompton (14 miles east).
Near you in Uxbridge
Around Uxbridge, our work takes us to homes and buildings near Three Tuns pub, West Middlesex College and Uxbridge High School, among other places. For rail, the closest station is West Drayton station, roughly 2.1 miles south. A little further out are The Chimes (less than half a mile north) and Hillingdon Museum and Archives Services (under half a mile north). The countryside around Uxbridge includes Uxbridge Moor and Horse Shoe Bay.
External mastic in Uxbridge
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 don’t skip that step. If you’re dealing with movement joints filled with mortar instead of sealant and sealant that has lost its bond to the brick or render, we can help, on joints between brick and frames, brickwork movement joints and copings & trims alike. As mastic and silicone sealant specialists, we cover Uxbridge for external mastic and other sealant work.
Modern London flats rely on sealed movement joints and cladding joints. Period houses have different weak points, such as gutter joints, trims and the line where an extension meets the old wall.
There’s a 12-month guarantee on every job.
- Location
- Uxbridge (UB8, UB10, UB9)
- Region
- Greater London
- Guarantee
- A year, on every job
- Quotes
- Quoted before any work starts
- Phone
- 07833 053749
- Last updated
- 26 October 2026
What happens on the day
Good joint work is mostly preparation, and we don’t rush it. Every joint is cleaned and dried before new material goes in. In total, it generally takes a few hours to a few days, depending on the length of joint and the access. In a London area like Uxbridge, the main things to plan are parking and access: let us know about parking, the floor we’ll be working on and any lift or shared entrance.
- Each joint is checked and the colour of the new sealant agreed.
- Failed sealant is removed back to clean, sound faces.
- Backing rod goes in so the sealant can stretch between the two faces.
- We prime the faces where required.
- A low-modulus exterior sealant is gunned in and tooled to a neat finish.
Getting ready for the visit
- Tell us about access, such as stairs, a lift or high-level joints
- Mention any sign-in or site rules at work premises
- For indoor joints, keep the area dry beforehand if you can
How to get a quote
For a quote, call 07833 053749 or drop us an email and tell us where the job is and what the problem looks like. We’ll send you a clear quote before any work starts.
Read more
Landlord and commercial work in Uxbridge
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.
Businesses can book us for washrooms, kitchens, offices and more. For commercial premises, we can talk through working times when we quote.
Do you need external mastic in Uxbridge?
If plants are growing out of a joint, the sealant has generally failed or was never there. Dirt and roots then trap moisture in the joint.
Common reasons people contact us include:
- Cracked joints where brick meets render or frames
- Sealant that has lost its bond to the brick or render
- Movement joints with cracked, split or missing sealant
- Rain getting behind render or cladding at a joint
For site and facilities teams at buildings such as Whitehall Junior School, larger buildings have long runs of movement joint that eventually need resealing.
Comparing quotes
- How the surfaces are prepared before sealing
- Is the old sealant removed completely?
- Whether the sealant suits the joint
- Whether VAT is included
Why act early in Uxbridge
A failed movement joint lets water into the wall and can run behind render or cladding. Resealing early keeps the job to the joint itself, instead of the wall and finishes around it. 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. Putting it right early is much less trouble.
We do not show prices on the website, because each job is priced on what it involves. For a quick quote, please call 07833 053749 or drop us an email.
Why us?
- Arbo and Everbuild products
- Approved under the ARBOMaster scheme
- A choice of colours where the product allows
- Colour picked to suit the job
Read what affects the cost or customer reviews.
What affects the cost of external mastic
Call for a quick quote. The main things that affect it are:
- How easy the joints are to reach
- Any working-time requirements on site
- Which sealant suits the joint
- The amount of work
Leaving a failed joint normally makes the job bigger, not smaller, as water and mould keep getting in. If you’re unsure, call 07833 053749 or send us an email and we’ll give you an honest view and a quote.
What we need to know
The more you tell us, the more accurate the quote. When you ask for a quote, tell us:
- Any previous sealing or DIY work
- Where the job is, and your postcode
- Pictures of the joints, sent by email
- The type of property
We quote each job on its own. Just call 07833 053749 or send us an email with the details and send pictures if you have them.
Surface by surface
Joints between dissimilar materials
Each side of the joint may need its own preparation. Both surfaces are cleaned and primed as the product requires.
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.
Can I do it myself?
If you’re set on DIY, put the effort into preparation: take out all the old sealant, make sure the joint is clean and dry, and give it the full cure time. If it fails, we can still redo it.
A careful DIYer can reseal a simple joint, such as a straightforward joint indoors. The common mistakes are sealing over old sealant, sealing a damp joint and using far too much.
Also near Uxbridge
Also in Uxbridge
Uxbridge questions
Is parking an issue for external mastic in Uxbridge?
Parking in Uxbridge, as in most of London, takes a little planning: a visitor permit or a nearby bay makes the day run more smoothly, so mention what’s available when you book.
Do you work for landlords with property near West Drayton station?
Yes. We work for letting agents and landlords as well as homeowners, and several properties can be quoted together. Just ring 07833 053749 or send us an email with the address and what needs doing, and we’ll give you a clear quote.
Can a movement joint be filled with mortar?
No. Rigid materials cannot move with the wall. Where a joint has been mortared, it can often be raked out and sealed properly.
How often do external joints need resealing?
That varies with the weather the wall faces, how much it moves and the sealant used. Sealant is a maintenance item, so check the joints once a year and reseal when it splits.
Why is there a gap in my brick wall?
A movement joint is a planned break in the wall that absorbs expansion and shrinkage. It’s sealed with a flexible sealant, not mortar.
Are you insured?
Yes, we’re fully insured.
What do you need from me for a quote?
Where the job is, what the problem is and roughly how big it is. If you can, email a few pictures.
Will the old sealant be removed?
Yes, every time. New sealant won’t bond properly to old, so any old material comes out before anything new goes in.