Greater London · England
External & façade joints in Eastfields, Greater London
Movement joints in Eastfields need attention? We cut out the old, prepare the joints and apply the right sealant, with a 12-month guarantee.
- Movement joints with cracked, split or missing sealant
- Old sealant gone brittle and cracked
- Water getting into walls through failed joints
Common problems we fix in Eastfields
A lot of failed joints come down to preparation: dusty or wet faces, no primer where one was needed, or old sealant left in. The sealant never bonds properly.
People usually contact us after spotting something like this:
- Joints where the bead has come unstuck
- Rigid filler in a joint that should flex
- Rain getting behind render or cladding at a joint
- Cracked joints where brick meets render or frames
In the older streets around St. Mark's Church, old and new materials meet at the roofline and walls, which is where sealant earns its keep.
Comparing quotes
- What the quote includes, VAT included or not
- When the joint can take water or movement
- How long the guarantee is
- Whether they seal over old material or remove it
About our external mastic in Eastfields
On houses, flats and commercial buildings across Eastfields, we reseal joints in brickwork, render, cladding and façade panels. The preparation is the same whatever the wall: clean, sound faces and a controlled depth. We work on copings & trims, render & cladding joints and façade panels, and the jobs we see most are panel joints letting water in and rigid filler in a joint that should flex.
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.
A 12-month guarantee comes as standard, so you are covered after we have gone.
- Place
- Eastfields (CR4, SW16, SW17)
- Wider area
- Greater London
- Guarantee
- One year on every job
- Quote
- A clear quote up front
- Call
- 0345 464 0079
- Updated
- 26 October 2026
Aftercare tips
A little care helps the new joints last. Our advice:
- Keep high-pressure jets off the joints
- Check the sealant is paintable before painting near it
- Clear growth from the base of walls and joints
- Tell anyone working on the walls about the movement joints
Look over the joints once a year, ideally after winter. Watch for splits, edges coming away or growth in the joint.
Small splits are the time to act. At that stage it’s a simple cut out and reseal.
What sealant work can’t fix
Sealant isn’t the answer to every problem, and we’ll tell you before any work starts. Sealant will not put right:
- Movement that is more than a sealant joint can take
- Adding movement joints to masonry that has none
- Rising or penetrating damp from elsewhere in the wall
If you’re not sure, just phone 0345 464 0079 or drop us an email and we’ll give you a straight answer before booking.
Joints and surfaces we work on
- Façade panels
- Joints between brick and frames
- Render & cladding joints
- Copings & trims
- Brickwork movement joints
- Concrete & block
Outside joints around Eastfields
Compared with the north and west, the South East gets less rain, though outdoor sealant still has to go onto a dry joint, so the forecast decides the day. With historic houses such as Southside House (about 3.4 miles west) nearby, there’s older building stock in the area around Eastfields as well as newer homes. Where a home is older, older brick and stone need a sealant that suits them, at the right joint depth.
Eastfields is in London, so parking needs planning: let us know about parking bays, permits or a driveway. For landlords with property near Mitcham Eastfields station, outside joints that have cracked can let damp into a rental, so check them between lets.
Eastfields is about 3 miles south-east of Wimbledon, in Greater London. Every kind of property in Eastfields is covered for external mastic, old or new, large or small. Every job comes with our one-year guarantee. Our Greater London coverage runs to 764 places, and Eastfields is one of them. Our London page covers work nearby.
Here we cover the CR4, SW16 and SW17 postcode area for external mastic. We cover properties on Bond Road, Hill Road and York Lane and the roads around them. Nearby, we also carry out external mastic in Mitcham (1 mile south), Hackbridge (1 mile south), Colliers Wood (1 mile north-west), Furzedown (1 mile north) and Merton Abbey (1 mile west). Larger places within reach include London (7 miles north), City of Westminster (7 miles north), Marylebone (8 miles north), Kensington (7 miles north), St Pancras (8 miles north) and Shoreditch (9 miles north).
What’s near Eastfields
Locally, jobs take us to homes and businesses close to The White Lion of Mortimer pub, Figge's Marsh and Furzedown Secondary School, among other places. There’s a railway station in Eastfields itself: Mitcham Eastfields station. Well-known places in the area include Centrale Croydon (3.1 miles south-east) and Wandle Industrial Museum (0.7 miles south-west). Green spaces nearby include Henman Hill and Oakleigh Way.
How we quote for external mastic
Call for a quick quote. The main things that affect it are:
- Mould in or behind the old joints
- How much there is to do
- Which sealant suits the joint
- The number of rooms or windows
Leaving a failed joint generally makes the job bigger, not smaller. If you are unsure, ring 0345 464 0079 or drop us an email and we will give you an honest view and a quote.
What to tell us for a quote
What to tell us when you ask for a quote:
- The problem you’ve noticed
- Where the job is, and your postcode
- Whether it has been sealed before
- The rough size of the job
Every job is quoted individually, so start by telling us what you need. Just ring 0345 464 0079 or drop us an email with the details.
Different surfaces, different methods
Joints between dissimilar materials
Joints where frames, sills or panels meet the wall are common leak points. We cut out the old sealant and reseal with a product suited to both surfaces.
Brickwork movement joints
Brick movement joints are often mistaken for a missing mortar line. If that’s happened, we rake it out and reseal it properly if the joint can be cleared.
FAQs for Eastfields
Do you work for landlords with property near Mitcham Eastfields station?
Yes, rental work is part of what we do. You can call 0345 464 0079 or email us with the address and a few details, and we will give you a fixed price before we start.
Can you do external mastic in Eastfields?
Yes, Eastfields is within the area we cover. We work across London and the South East. Just phone 0345 464 0079 or email us with a few details of the job, and we’ll send you a clear quote.
How long does external mastic last?
There’s no fixed answer: sunny, exposed elevations and busy joints wear faster. A yearly look will tell you when they need doing. Every job carries our 12-month guarantee.
Do you work for hotels and businesses?
Yes. Hotels, offices and other businesses use us, and we’re fully insured.
Do you take out the old sealant first?
Yes. Sealing over the old bead is the commonest cause of early failure, and it’s something we never do.
Can I do it myself?
That depends on the joint. Work at height, movement joints, fire-rated gaps and large areas are best left to a professional, while a short indoor joint may be within reach.
Do you hold any approvals?
Yes. We’re an ARBOMaster approved applicator, the approved applicator scheme for Arbo sealants.
How long will you be here?
Typically it takes a few hours for a handful of joints, longer for a whole elevation. Larger jobs naturally take longer, and we’ll say how long yours will take.
Towns and villages near Eastfields
More services for Eastfields
Can I do it myself?
Some jobs are best left to a professional: work at height, external movement joints, fire-rated sealant and large areas need the right product, the right access and the right method.
Overfilling a joint is a classic DIY mistake. A heavy bead looks messy and copes badly with movement, and the joint depth matters as much as the finish.
What we do, step by step
Before we leave, we go over the finished joints with you and explain the cure time. The visit itself usually takes anything from a few hours to several days, depending on the building, depending on the size of the job. In a London area like Eastfields, the main things to plan are parking and access: tell us about permits, visitor bays or off-street space, which floor we’re working on and whether there’s a lift.
- We start by walking round the building and agreeing the joints and the access.
- We cut out the old mastic and rake out anything in the joint.
- Joint faces are cleaned back and primed if the sealant needs it.
- Backing rod sized to the joint goes in to set the depth.
- We apply the sealant, tool it and check the whole run.
Preparing for the visit
- Clear the area around the work
- Mention if the joints have been sealed before
- Let us know about parking restrictions
Getting a quote
It all starts with a short chat. Describe the problem, the location and the size of the job, and we will explain how we’d tackle it. Whenever you’re ready, phone 0345 464 0079 or email us.