Greater London · England
External & façade joints in Bedfont, Greater London
Sealing brickwork movement joints, render, cladding and façade joints for householders, landlords and businesses in Bedfont. Fully insured, ARBOMaster approved and guaranteed for a year.
- Joints where the bead has come unstuck
- Failed sealant between panels on a façade
- Weeds or debris growing in open joints
How we handle external mastic in Bedfont
On houses, flats and commercial buildings across Bedfont, we reseal joints in brickwork, render, cladding and façade panels. Every joint gets the same careful preparation: clean joint faces and the right depth. We work on façade panels, render & cladding joints and copings & trims, and people most often call us about joints where the bead has come unstuck and failed seals between different materials.
In London terraces and converted houses, gutters and walls are often shared with the house next door, so one failed joint can cause damp for more than one household. In a converted house in Bedfont, it’s worth checking who is responsible for the outside before booking.
There’s a 12-month guarantee on every job.
- Place
- Bedfont (TW14, TW6, TW13)
- Region
- Greater London
- Guarantee
- One year on every job
- Price
- Quoted before any work starts
- Phone
- 0345 464 0079
- Last updated
- 26 October 2026
Why it’s worth doing now in Bedfont
The longer a joint stays open, the more water the wall takes in. Wet masonry is more easily damaged by frost around the joint, so the problem grows beyond the joint itself. In a London flat, a failed joint rarely stays your problem alone: water from a shower or window joint can reach the flat below, and gaps in fire-stopping matter to everyone in the building.
What you pay reflects the work, not a rough estimate. That is why we ask a few questions first and send you a clear quote before any work starts.
What you get with us
- We never seal over old sealant
- Colour agreed with you before work begins
- 12-month guarantee on every job
- Sanitary silicone with an anti-fungal additive in wet areas
Take a look at what affects the cost and our reviews.
More services for Bedfont
When something else is needed
Before booking, it’s worth knowing the limits too:
- Structural movement, which needs a surveyor or engineer
- Cracked brickwork or render that needs a builder or plasterer
- Cutting new joints into brickwork, which is building work rather than sealant work
Not sure which it is? You can phone 0345 464 0079 or send us an email and we’ll tell you honestly before booking.
Where we work in Bedfont
- Copings & trims
- Brickwork movement joints
- Concrete & block
- Joints between brick and frames
- Façade panels
- Render & cladding joints
Surface by surface
Cladding and façade panels
Where a cladding system has its own specified sealant, we follow it or an approved alternative. Send us any details you have about the façade.
Copings and trims
A failed coping joint lets water into the top of the wall. Sealing them early saves the wall below.
External mastic in Bedfont: local notes
Compared with the north and west, the South East gets less rain, but outside sealant still needs a dry, clean surface, so outdoor work is planned around the forecast. 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 Mary, older walls, gutters and the joints where extensions meet them need a flexible sealant. Letting a property close to Heathrow Terminal 4 Rail station? Then failed wall and movement joints let damp in, so they’re worth checking between tenancies. Bedfont is in London, so parking needs planning: let us know about parking bays, permits or a driveway.
Bedfont is about 1 mile west of Feltham, in Greater London. Jobs in Bedfont get the same care as everywhere else we work: the old material taken out, joints prepared properly and a 12-month guarantee. Our area takes in 764 places across Greater London, from the larger towns to small villages. We also work in London, around 15 miles away.
All of TW14, TW6 and TW13 is covered for external mastic, from the main roads to the quietest streets. Streets in the area include Elm Road, New Road and East Road. We also cover the places around Bedfont: West Bedfont (1 mile west), Feltham (1 mile east), Heathrow (1 mile north-west), Hatton (1 mile north-east) and Hounslow (1 mile south). We also work in nearby towns such as London (15 miles east), City of Westminster (13 miles east), Marylebone (13 miles east), Kensington (11 miles east), St Pancras (15 miles east) and Hampstead (13 miles north-east).
Local landmarks in Bedfont
In Bedfont, that means homes and buildings near Space Studio West London and Spelthorne College. Bedfont’s nearest station is Heathrow Terminal 4 Rail station, about 0.7 miles north-west. Nearby you’ll also find Kempton Steam Museum (2.3 miles south-east) and Treaty Centre (3.5 miles east). Open spaces near Bedfont include Staines Reservoirs and Crane Meadows.
How we quote for external mastic
For a quick quote, just ask. The main things that affect it are:
- Any mould that needs treating
- The old material and how stubborn it is
- The number of rooms or windows
- How easy the joints are to reach
Combining jobs into one visit usually makes better use of the time than several visits. We’ll give you a clear price for the lot.
Helping us quote
There’s no need for technical detail. It helps if you can tell us:
- The address or postcode of the job
- Whether it has been sealed before
- Pictures of the joints, sent by email
- What the problem is, such as mould, gaps, leaks or cracking
Every job is quoted individually. Just call 0345 464 0079 or drop us an email with the details and send pictures if you have them.
Landlord and commercial work in Bedfont
Hotels need rooms back in use, so the work can be planned room by room. Hotel work is part of what we do, alongside homes and businesses.
Businesses can book us for washrooms, kitchens, offices and more. On commercial sites, working times can be discussed when we quote.
What happens on the day
Good joint work is mostly preparation, so that is where we spend the time. Joints are cleaned back and dried before anything new goes in. All told, the work takes a few hours for a handful of joints, longer for a whole elevation. In a London area like Bedfont, the main things to plan are parking and access: tell us about permits, visitor bays or off-street space, which floor we are working on and whether there’s a lift.
- Each joint is checked and the colour of the new sealant agreed.
- We take out the old sealant until the faces are sound.
- Closed-cell backing rod is pushed in so the sealant bonds to two sides only.
- Primer is applied wherever the sealant needs it.
- We gun in low-modulus sealant and tool it neatly.
How to prepare
- Keep pets and children clear of the area while we work
- Tell us about any water getting in
- Tell us if parking is tricky
Get a quote
A good description makes for an accurate quote. Tell us where the job is, what’s wrong and how much there is, and email photos if that’s easy.
Read more
Keeping the joints in good condition
How long the joints last depends on use and care. We suggest:
- Clear growth from the base of walls and joints
- Get split or bare joints resealed while the damage is small
- Tell anyone working on the walls about the movement joints
- Check external joints each spring
Look over the joints once a year, ideally after winter. Splits, gaps at the edges or plants in the joint are early warning signs.
Leaks behind façade panels and render often go unseen. When it finally shows inside, the joint may have been open for years, so it’s worth resealing at the first signs.
Bedfont questions
Is parking a problem for a job in Bedfont?
In much of London, parking needs planning: a visitor permit or a bay close to the door helps a lot, so mention what’s available when you book.
I let a flat near Heathrow Terminal 4 Rail station. Can you help?
Yes. We work for landlords and letting agents as well as homeowners, and several properties can go on one quote. You can ring 0345 464 0079 or email us with the details for a clear quote.
Do you remove the old sealant?
Yes, every time. New silicone doesn’t stick to old silicone, so any old material comes out before anything new goes in.
Are you insured?
Yes. Mr Mastic is fully insured.
Why is there a gap in my brick wall?
A vertical gap in a long brick wall is normally a movement joint. It gives the wall room to move.
Can you reach joints on upper floors?
Each building is different. Tell us the height, the number of joints and what’s below them and we will confirm how they can be reached safely.
How much does external mastic cost in Bedfont?
The cost depends on the size of the job, access and how much old sealant has to come out. Call for a quick quote.
How long does the job take?
A typical job takes a few hours for a handful of joints, longer for a whole elevation, including preparation and clearing up. We’ll confirm how long when we quote.