Greater London · England
External Mastic in Bedford Park
External mastic in Bedford Park from a team with over 20 years’ experience. 180+ five-star Google reviews and a 4.9 rating.
- Movement joints with cracked, split or missing sealant
- Joints pointed up with cement by mistake
- Damp patches traced to an open external joint
External mastic in Bedford Park
Where two different materials meet, such as brick and render or blockwork and metal, they move at different rates. A flexible sealant bridges the two. We work on joints between brick and frames, copings & trims and render & cladding joints, and people most often call us about failed seals between different materials and joints where the bead has come unstuck.
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.
There’s a 12-month guarantee on every job.
- Where
- Bedford Park (W4, W3, W12)
- Wider area
- Greater London
- Cover
- A year, on every job
- Quotes
- A clear price before we start
- Telephone
- 0345 464 0079
- Page updated
- 26 October 2026
How the job changes by surface
Joints between dissimilar materials
Each side of the joint may need its own preparation. We prepare both faces so the sealant bonds properly.
Cladding and façade panels
Metal and composite panels move a lot with temperature, so the joint sealant has to cope with frequent movement. The sealant is chosen with that in mind.
Nearby places to Bedford Park
More services for Bedford Park
Quotes for external mastic in Bedford Park
Your quote is based on your job. We take into account:
- Any working-time requirements on site
- Whether the work is at height
- How many rooms, windows or areas are involved
- The product the joint needs
The cost reflects the work involved, not guesswork. That is why we ask a few questions first.
What to tell us for a quote
The more you tell us, the more accurate the quote. When you ask for a quote, tell us:
- Any previous sealing or DIY work
- The problem you’ve noticed
- The rough size of the job
- Where the property is
For a quote, ring 0345 464 0079 or email us and tell us where the job is and what the problem looks like. We will give you a clear price before any work starts.
What we do, step by step
We bring everything the job needs with us. After a quick look at the joints together, we protect the area and start. Most jobs take anything from a few hours to several days, depending on the building. In Bedford Park, as in most of London, parking needs a little planning. It helps if you can point us to a visitor permit or a bay close to the door.
- Each joint is checked and the colour of the new sealant agreed.
- We take out the old sealant until the faces are sound.
- Backing rod goes in so the sealant can stretch between the two faces.
- Primer is applied wherever the sealant needs it.
- We gun in low-modulus sealant and tool it neatly.
Getting ready for the visit
- Tell us about access, such as stairs, a lift or high-level joints
- Tell us if parking is tricky
- Let us know about earlier repairs to the joints
How to get a quote
Call for a quick quote, or email us if that is easier. Describe what needs sealing and we will talk you through the work and give you a clear quote.
Related advice
Aftercare tips
Aftercare is simple:
- Keep movement joints as flexible joints, not mortar
- Tell anyone working on the walls about the movement joints
- Wash walls gently around the sealant
- Keep soil, plants and ivy away from the joints
Keep the joints clear of soil, plants and climbing growth. Anything that holds water against the joint wears it out sooner.
Once a joint can’t move, the wall finds another way, often as cracks near the joint. Resealing it early helps prevent that.
Your questions about external mastic in Bedford Park
Is parking a problem for a job in Bedford Park?
In much of London, parking needs planning: a visitor permit or a nearby bay makes the day run more smoothly.
Is Bedford Park in your area for external mastic?
Yes. Our work covers London and the South East, and Bedford Park is part of that. You can phone 0345 464 0079 or email us and tell us what needs doing.
What colours does the sealant come in?
There’s a good range of exterior colours, including greys, browns, whites and stone tones. We pick the one that suits your wall best.
Which products do you use?
Quality sealants from brands including Arbo and Everbuild, chosen to suit the joint. We explain the product when we quote.
I’m a tenant. Can you help?
Yes, but check with your landlord or agent first. Many landlords are glad to have it sorted.
When will the joints need doing again?
That depends on the wall, the weather and the movement. Signs to watch for are cracking, hardening and gaps at the edges.
Do I need to be at home?
Access is agreed with you when the job is booked. For inside work, that normally means someone being in.
Will the old sealant be removed?
Yes. All of the old material is cut out and the joint cleaned before applying anything new.
What sealant work cannot fix
We won’t take on work that won’t last, so here’s what sealant can’t put right:
- Render that’s blown, hollow or coming away
- Damp that is not coming from the joint
- Cracked brickwork or render that needs a builder or plasterer
If in doubt, call 0345 464 0079 or email us and we’ll say what we think before you book.
Where we work in Bedford Park
- Render & cladding joints
- Façade panels
- Brickwork movement joints
- Concrete & block
- Joints between brick and frames
- Copings & trims
External mastic in Bedford Park: local notes
London terraces and converted houses often share gutters, downpipes and walls, so check who is responsible for the outside before booking. Historic houses like Hogarth's House (about 0.9 miles south) are a reminder that the area around Bedford Park has older buildings as well as new. In older buildings, older walls and rooflines need a sealant that moves with them and suits the material.
Schools such as Southfield Primary School are buildings too, and its movement joints, gutters and trims need looking after like any other building’s. Bedford Park is in London, so parking needs planning: tell us about permits, visitor bays or off-street space when you book.
Bedford Park is about 2 miles east of Ealing, in Greater London. Whether you’re in the middle of Bedford Park or further out, external mastic is available for homes and businesses alike. 764 places in Greater London are on our list, large and small. For nearby work, see our London page.
Jobs for external mastic in W4, W3 and W12 is quoted and booked the same way as anywhere else. Local streets include Meon Road, Kent Road and Bath Road, and we cover them all. Other places close to Bedford Park include Acton Green (1 mile west), Acton Vale (1 mile north-east), Acton (1 mile north), South Acton (1 mile west) and Hanger Hill (2 miles north-west). Within a short drive, we also cover London (7 miles east), City of Westminster (5 miles east), Marylebone (5 miles east), Kensington (3 miles east), St Pancras (6 miles east) and Shoreditch (8 miles east).
What’s near Bedford Park
In Bedford Park, that means homes and buildings near Ark Soane Academy, The Duke Of Sussex Public House and Turnham Green and the streets around them. Other local landmarks include Library for Iranian Studies (0.8 miles north-west) and Leap Service - the National Autistics Society (0.7 miles north-west). There’s a railway station in Bedford Park itself: South Acton station. Other landmarks nearby include Asian Music Museum (0.7 miles south-west) and Livat Hammersmith (1.5 miles east). Not far away are Kew Gardens Lake and Duke's Hollow.
What happens if it’s left?
Water gets in through a failed movement joint. Resealing early keeps the job to the joint itself, rather than the wall around it. Damp from a failed joint spreads quietly in older London brickwork and timber, and by the time it shows on a wall or ceiling in Bedford Park, the repair is bigger than the sealant job would have been.
Rather than a set price list, we price the job in front of us: how many joints, what’s in them now and how we reach them. The price is agreed before we begin.
Why book with us
- You choose the colour before work begins
- Sanitary silicone with an anti-fungal additive in wet areas
- White, clear, grey or coloured to suit, where the product allows
- Domestic, commercial and hotel work
Read our cost guide and what customers say.
When to call us in Bedford Park
If plants are growing out of a joint, the sealant has generally failed or was never there. Roots and dirt hold water against the wall.
Signs it’s time to call us include:
- Plants rooting in failed movement joints
- Movement joints with cracked, split or missing sealant
- Panel joints letting water in
- Movement joints filled with mortar instead of sealant
If you let a flat or house near South Acton station, failed wall and movement joints let damp in, so they’re worth checking between tenancies.
Before you book anyone
- Whether VAT is included
- Are they insured?
- The length of the guarantee
- Whether the sealant suits the joint