Greater London · England
West Drayton External Mastic
Problem with your movement joints in West Drayton? We cut out the old, prepare the joints and apply the right sealant, and the work is guaranteed for a year.
- Panel joints letting water in
- Rain getting behind render or cladding at a joint
- Failed seals between different materials
External mastic in West Drayton
Low-level joints can usually be done from the ground. For joints higher up, give us some details of the building and we will confirm what access is needed. If you have rigid filler in a joint that should flex and weeds or debris growing in open joints, we can put it right, on façade panels, brickwork movement joints and render & cladding joints alike.
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 West Drayton, check the lease for who looks after the outside.
All our work comes with our 12-month guarantee.
- Place
- West Drayton (UB7)
- Region
- Greater London
- Guarantee
- 12 months on all our work
- Price
- Quoted before any work starts
- Telephone
- 0345 464 0079
- Last updated
- 26 October 2026
Common problems we fix in West Drayton
Sunlight, wet weather and frost wear exterior sealant down. In time it goes hard, crazes on the surface and stops stretching, so the joint eventually tears or comes away from one side.
These are the problems we’re asked about most:
- Moss and dirt in joints with no sealant left
- Damp patches traced to an open external joint
- Gaps where render, brick and frames meet
- Failed sealant between panels on a façade
As a London address, West Drayton can be tricky for parking: let us know about parking bays, permits or a driveway.
What to look for in a quote
- Is VAT in the price?
- What insurance they hold
- Who does the work, and how experienced they are
- What happens if the job turns out different
How to look after the new joints
To keep the joints looking good and working properly:
- Never let anyone fill a movement joint with mortar
- Clear growth from the base of walls and joints
- Walk round the building once a year and look at the joints
- Wash walls gently around the sealant
Only paint over the joint if we have confirmed the sealant can take paint. Paint can crack on a flexible joint, and paint can crack as the joint moves.
If you can see gaps, plants or bare sections in a joint, have it checked. Early work is quicker and leaves a better finish.
What else we do in West Drayton
The process
Every visit runs the same way: we check the joints, protect the area around them, carry out the job and clear up. Most jobs take anything from a few hours to several days, depending on the building. Parking in much of London is by permit or pay-and-display, so it helps to know what’s near you in West Drayton. A visitor permit or a nearby bay makes the visit run more smoothly.
- 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.
- We fit closed-cell backing rod to control the depth.
- We apply the sealant, tool it and check the whole run.
How to prepare
- Mention any parking rules near the property
- For business premises, tell us about site rules or sign-in
- Tell us about access, such as stairs, a lift or high-level joints
Ask for a quote
A good description makes for an accurate quote. Tell us where the job is, what’s wrong and how much there is.
Advice
Surface by surface
Cladding and façade panels
Where a cladding system has its own specified sealant, we follow it. Send us any details you have about the façade.
Copings and trims
Metal and stone copings both move with temperature, so the joints need a sealant that stays flexible in all weathers.
What affects the cost of external mastic
There’s no set price list. The quote depends on:
- Access and height
- Whether old sealant or filler has to be cut out
- Which sealant suits the joint
- Whether there’s mould to deal with
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.
Helping us quote
Photos by email are helpful but not essential. Please mention:
- If someone has resealed it before
- The problem you’ve noticed
- How many joints, rooms or windows are involved
- A few pictures by email, if you can
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.
What external mastic looks like in West Drayton
London and the South East are among the drier parts of the UK, though outdoor sealant still has to go onto a dry joint, so the forecast decides the day. In terraces and conversions, gutters and walls are often shared with the neighbours, so check who is responsible for the outside before booking.
Rented homes near West Drayton station change hands often, and failed wall and movement joints let damp in, so they’re worth checking between tenancies. If you live in an older home near Church of St Martin, older walls, gutters and the joints where extensions meet them need a flexible sealant.
West Drayton is about 2 miles west of Hayes, in Greater London. Every kind of property in West Drayton is covered for external mastic. Every job comes with our one-year guarantee. We cover 764 towns and villages across Greater London, large and small. We also work in London, about 16 miles from West Drayton.
Here we cover the UB7 postcode area for external mastic. External mastic is available to properties on Church Road, Station Road and Constabulary Place and the roads around them. Neighbouring places we cover for external mastic include Yiewsley (1 mile north), Thorney (1 mile west), Cowley (2 miles north), Hayes (2 miles east) and Hillingdon (2 miles north). Further out, we also cover City of Westminster (14 miles east), Marylebone (14 miles east), Kensington (11 miles east), St Pancras (15 miles east), Hampstead (13 miles east) and Ruislip (6 miles north-east).
What’s near West Drayton
In West Drayton, that means homes and buildings near Park Academy West London, The Fox and Pheasant pub and Lake Farm Country Park and the streets around them. The nearest railway station is West Drayton station, roughly 0.5 miles north-west. Well-known places in the area include The Chimes (3 miles north) and British Airways Heritage Collection (2.5 miles north). For a walk, there’s Uxbridge Moor and Staines Reservoirs.
West Drayton questions
Is West Drayton in your area for external mastic?
Yes, West Drayton is within the area we cover. Our work covers London and the South East. Just ring 0345 464 0079 or email us with a few details of the job, and we will send you a clear quote.
Is parking an issue for external mastic in West Drayton?
It can be, so it helps to tell us about permits, visitor bays or off-street space when you book. That way the visit can be planned around it.
Do you have insurance?
Yes, we’re fully insured for domestic and commercial work.
What is backing rod for?
That is backing rod, a closed-cell foam. It stops the sealant going in too deep and bonding to three sides.
How much does external mastic cost in West Drayton?
There’s no set price, as it depends on the job: how much there is, what’s there now, how we reach it and what it needs. You will get a clear quote before we start.
How long will you be here?
Typically it takes anything from a few hours to several days, depending on the building. Larger jobs naturally take longer.
Why is there a gap in my brick wall?
Walls move with heat, cold and moisture, so long walls have planned gaps to take that movement. It’s closed with backing rod and a flexible sealant.
Where do you work from?
Our base is Crawley, with over 20 years’ experience. We work across South East England, London and Scotland.
Why act early in West Drayton
It often makes sense to reseal all the failing joints on an elevation together. Joints of the same age tend to fail together, and access only has to be arranged once. In a London flat, a failed joint rarely stays your problem alone: water can reach the neighbours below, and gaps in fire-rated joints affect the whole building.
Combining jobs into one visit is normally more efficient than separate visits. You’ll get one clear quote for the whole job.
Why book with us
- Fully insured
- A sealant colour to suit the surroundings
- Neat joints and a tidy finish
- Over 20 years’ experience
Take a look at our cost guide or what customers say.
What we can’t put right
It helps to know what we can’t do:
- Cracks in the bricks or render themselves, away from the joints
- Damp that is not coming from the joint
- Adding movement joints to masonry that has none
If you’re not sure, just phone 0345 464 0079 or drop us an email and we will give you a straight answer.
Surfaces we seal
- Joints between brick and frames
- Render & cladding joints
- Façade panels
- Copings & trims
- Brickwork movement joints
- Concrete & block