Greater London · England
Bushey Mead External Mastic
External mastic for Bushey Mead and the surrounding area: the right sealant, proper preparation and a neat finish. Ask us for a quick quote.
- Weeds or debris growing in open joints
- Gaps where render, brick and frames meet
- Panel joints letting water in
External mastic in Bushey Mead, done properly
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 brickwork movement joints, copings & trims and render & cladding joints, and people most often call us about failed sealant between panels on a façade and movement joints filled with mortar instead of sealant.
Outside work in London starts with access: side passages, upper floors and where to park. For a home in Bushey Mead, tell us how high the joints are and how to reach the back of the building.
We stand behind the work with a one-year guarantee, so you are covered after we have gone.
- Where
- Bushey Mead (SW20, SW19, SM4)
- Region
- Greater London
- Guarantee
- One year on every job
- Quotes
- A clear price before work begins
- Call
- 0345 464 0079
- Updated
- 26 October 2026
The process
Before we leave, we go over the finished joints with you and tell you how long to leave it. The visit itself generally takes a few hours for a handful of joints, longer for a whole elevation, depending on the size of the job. Parking in much of London is by permit or pay-and-display, so it helps to know what’s near you in Bushey Mead. It helps if you can point us to a visitor permit or a bay close to the door.
- We start by checking each joint, agreeing the ones to redo and how we will reach them.
- Old sealant and any debris are cut and raked out.
- We clean both faces of the joint and prime them where the product calls for it.
- Closed-cell backing rod is fitted to set the depth and stop three-sided bonding.
- The new sealant, chosen to suit the brick or render, is applied and tooled to a neat finish.
Before we arrive
- Tell us about any previous sealing or DIY attempts
- Clear the area around the work
- Tell us about access, such as stairs, a lift or high-level joints
Getting a quote
We do not publish a price list, because every job is different. Instead, your job gets its own clear quote. To arrange one, ring 0345 464 0079 or email us.
Read more
For landlords and businesses
Landlords and agents in Bushey Mead can book us as well as homeowners. Resealing between tenancies is a simple way to keep a property in good order.
We also work for property managers and facilities teams. Several sites can be quoted together, and we are fully insured for the work.
External mastic in Bushey Mead: local notes
London terraces and converted houses often share gutters, downpipes and walls, so check who is responsible for the outside before booking. With historic houses such as Southside House (about 0.7 miles north-west) nearby, there’s older building stock in the area around Bushey Mead as well as newer homes. In older buildings, older walls and rooflines need a sealant that moves with them and suits the material.
Rented homes near Raynes Park 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 Dundonald Church, an extension built onto an older house moves differently, and the joint between them takes the strain.
Bushey Mead is about 1 mile south-west of Wimbledon, in Greater London. From the centre of Bushey Mead to the outskirts, we cover external mastic for every kind of property. Our Greater London coverage runs to 764 places, and Bushey Mead is one of them. Our London page covers work nearby.
We work across SW20, SW19 and SM4 for external mastic and the streets around it. That includes homes and businesses on Gore Road, Edna Road and Wyke Road and the roads around them. You’ll find Bushey Mead on the A298, which makes it straightforward to reach. We also cover the places around Bushey Mead: Wimbledon Chase (1 mile east), Raynes Park (1 mile south-west), Cannon Hill (1 mile south-east), Copse Hill (1 mile north-west) and West Barnes (1 mile south-west). We also work in nearby towns such as London (8 miles north-east), City of Westminster (8 miles north), Marylebone (8 miles north-east), Kensington (6 miles north), St Pancras (9 miles north-east) and Shoreditch (10 miles north-east).
Around Bushey Mead
We work in homes and buildings around Harris Academy Wimbledon, The Edward Rayne pub and Ursuline Preparatory School and the streets around them. Bushey Mead has its own railway station: Raynes Park station. Nearby you will also find Atkinson Morley Hospital (0.9 miles north-west) and Chessington Castle Hill (4.6 miles south-west). Green spaces nearby include Cherry Wood and Henman Hill.
Should I try it myself first?
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 does not work out, we can still put it right.
Not every job suits DIY: high-level joints, fire-rated gaps, external movement joints and big jobs call for the right materials, safe access and experience.
Why it’s worth doing now in Bushey Mead
Sealing over the top of old mastic does not hold for long. The new layer cannot bond properly to old, weathered material, so we always take the old sealant out. In a flat in Bushey Mead, failed sealant seldom stays inside your own four walls: water can reach the neighbours below, and gaps in fire-rated joints affect the whole building.
A few things move the cost up or down: the old material and how easily it comes out, whether mould needs treating, and whether the work is at height. Your quote takes all of that into account.
Why choose Mr Mastic in Bushey Mead
- A sealant colour to suit the surroundings
- We never seal over old sealant
- Tidy, careful work
- A choice of colours where the product allows
Read what affects the cost or customer reviews.
Also near Bushey Mead
Also in Bushey Mead
Signs you need external mastic in Bushey Mead
Some movement joints have been pointed up with mortar by mistake. The joint cannot move, so the wall cracks somewhere else instead.
The problems people generally mention when they call include:
- Rigid filler in a joint that should flex
- Sealant pulling away from one side of the joint
- Old sealant gone brittle and cracked
- Weeds or debris growing in open joints
Schools such as Joseph Hood Primary School are buildings too, and its movement joints, gutters and trims need looking after like any other building’s.
Questions to ask before booking
- When the joint can take water or movement
- Who does the work, and how experienced they are
- Is the old sealant removed completely?
- What the quote includes, VAT included or not
When something else is needed
We will always be straight with you, so here’s what sealant cannot fix:
- Cracks in the bricks or render themselves, away from the joints
- Subsidence or other structural problems
- Walls that need new movement joints cut into them
If in doubt, phone 0345 464 0079 or send us an email and we’ll say what we think.
What we seal
- Brickwork movement joints
- Concrete & block
- Façade panels
- Render & cladding joints
- Copings & trims
- Joints between brick and frames
What affects the quote in Bushey Mead
There’s no set price list, because jobs vary so much. The quote depends on:
- Whether there’s mould to deal with
- The old material and how stubborn it is
- The type of sealant required
- Working hours on commercial sites
Commercial jobs are quoted on the same basis as homes: the amount of work, the access and the products needed, plus any working-time requirements on site. Call for a quick quote and we will explain what it covers.
Helping us quote
When you call or email, these details help:
- How many joints, rooms or windows are involved
- If someone has resealed it before
- Any access issues, like height or stairs
- Where the job is, and your postcode
Every job is quoted individually. Simply ring 0345 464 0079 or email us and describe the job and send pictures if you have them.
Your questions about external mastic in Bushey Mead
Can you help a landlord with a rental near Raynes Park station?
Yes. We work for letting agents and landlords as well as homeowners. Just call 0345 464 0079 or send us an email with the address and what needs doing, and we will send you a clear quote.
Is parking a problem for a job in Bushey Mead?
Parking in Bushey Mead, 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 come to Bushey Mead?
Yes. We work in Bushey Mead and the rest of Greater London, as part of our work across South East England, London and Scotland. To book, call 0345 464 0079 or send us an email.
Which products do you use?
The product depends on the job: sanitary silicone where it gets wet, and sealants suited to movement or weather elsewhere. We use products from Arbo and Everbuild.
How long does the job take?
It depends on the size of the job, but as a guide it takes anything from a few hours to several days, depending on the building. We’ll tell you when we quote.
Are you an approved applicator?
Yes. We’re ARBOMaster approved, the scheme for applicators of Arbo sealants.
Is it worth trying it myself?
It depends on the job. High-level, external movement and fire-rated joints are professional jobs.
Can you quote for more than one area?
Yes, and it often makes sense. Doing several areas at once is generally more efficient, so mention them when you ask for a quote.