Greater London · England
Abbey Wood External Mastic
Sealing brickwork movement joints, render, cladding and façade joints in Abbey Wood, with a 12-month guarantee on every job. Ask us for a quote.
- Joints where the bead has come unstuck
- Rain getting behind render or cladding at a joint
- Movement joints filled with mortar instead of sealant
External mastic in Abbey Wood
Joints between dissimilar materials, like brick against render or concrete against a steel frame, see movement from both sides. A flexible exterior sealant takes up that movement where mortar or filler would crack. If you’re dealing with old sealant gone brittle and cracked and joints where the bead has come unstuck, we can put it right, whatever the surface.
Working on the outside of a London home means planning access: shared paths, upper floors and parking. For a home in Abbey Wood, tell us how high the joints are and how to reach the back of the building.
The work is covered for a year after we finish. If anything isn’t right with it, ring 0345 464 0079 or email us.
- Location
- Abbey Wood (SE2, SE18, DA16)
- Wider area
- Greater London
- Cover
- One year on every job
- Quote
- Quoted before any work starts
- Call
- 0345 464 0079
- Page updated
- 26 October 2026
Why deal with it now?
A properly done movement joint is an even line in a colour that suits the wall. A hurried job with smeared edges and no backing looks worse and fails sooner. Damp from a failed joint spreads quietly in older London brickwork and timber, and once it shows in Abbey Wood, the repair is bigger than a sealant job.
A few things move the cost up or down: the old material and how easily it comes out, whether mould needs treating, and whether we need extra access for height. We take all of that into account in your quote.
Why book with us
- You choose the colour before work begins
- Homes, businesses and hotels
- Quality sealants from Arbo and Everbuild
- Anti-fungal sanitary silicone in wet areas
Places near Abbey Wood
What else we do in Abbey Wood
Different surfaces, different methods
Copings and trims
Coping and trim joints face rain and sun head on. We reseal them with an exterior sealant suited to the material.
Concrete and blockwork
The face of concrete or block is often dusty, so preparation is key. We prime where the sealant needs it before sealing.
How the visit works
There isn’t much for you to do on the day. Point us to the joints and we’ll get on with it. The work itself takes a few hours to a few days, depending on the length of joint and the access. Many London jobs are in flats, so we come ready for stairs, narrow hallways and shared entrances. If the building has a concierge, managing agent or access rules, tell us when you book.
- 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.
- We prime the faces where required.
- A low-modulus exterior sealant is gunned in and tooled to a neat finish.
Getting ready for the visit
- Tell us if parking is tricky
- Let us know about stairs, lifts or work at height
- Keep pets and children clear of the area while we work
How to get a quote
For external mastic in Abbey Wood, call 0345 464 0079 or email us. Tell us what the problem is and where, and you will get a clear quote before any work starts.
Advice
Should I try it myself first?
Sealing over old silicone is the commonest DIY error. New silicone won’t bond to old, so it lifts and traps water and mould underneath. All the old material has to come out first.
The difference is mostly in the preparation and the product. Joints are cleaned back to sound surfaces and dried, and the sealant is matched to the joint and its conditions, then guaranteed for a year.
Landlords, agents and businesses in Abbey Wood
Whether it’s one flat or a portfolio, the work is the same standard: old sealant fully removed, joints prepared properly and a one-year guarantee.
In hotels, rooms out of use cost money, so we plan the work room by room around your bookings where we can. Hotel work is part of what we do, alongside homes and businesses.
What external mastic looks like in Abbey Wood
Historic houses like Danson House (about 2.1 miles south) are a reminder that the area around Abbey Wood has older buildings as well as new. Where a home is older, older walls and rooflines need a sealant that moves with them and suits the material. The South East is one of the drier parts of the UK, but outside sealant still needs a dry, clean surface, so outdoor work is planned around the forecast.
If you let a flat or house near Abbey Wood station, outside joints that have cracked can let damp into a rental, so check them between lets. As a London address, Abbey Wood can be tricky for parking: tell us about permits, visitor bays or off-street space when you book. Schools such as Alexander McLeod Primary School are buildings too, and larger buildings have long runs of movement joint that eventually need resealing.
Abbey Wood is about 1 mile east of Plumstead, in Greater London. We carry out external mastic for homeowners, landlords and businesses in Abbey Wood and nearby, as part of our work across Greater London. Our Greater London coverage runs to 764 places, and Abbey Wood is one of them. Our London page covers work nearby.
Jobs for external mastic in SE2, SE18 and DA16 is quoted and booked the same way as anywhere else. Whether your property is on Bevan Road, Mcleod Road and Manton Road or a nearby road, we can help. Abbey Wood is on the A206, which makes it straightforward to reach with everything needed for external mastic. If you are just outside Abbey Wood, we cover West Heath (1 mile south-east), Lessness Heath (2 miles east), Belvedere (2 miles east), Welling (2 miles south) and Crook Log (2 miles south). We also work in nearby towns such as London (9 miles west), City of Westminster (12 miles west), Marylebone (11 miles west), Kensington (14 miles west), St Pancras (10 miles west) and Shoreditch (9 miles west).
Near you in Abbey Wood
Typical jobs here are in homes near St Paul's Academy, Abbey Wood Park and The Plume Of Feathers Public House, among other places. The closest station to Abbey Wood is Abbey Wood station, roughly 0.5 miles north-east of the centre. Other landmarks nearby include Bexley Hospital (2.2 miles south-east) and Greenwich Borough Museum (under half a mile west). The countryside around Abbey Wood includes Crossness Nature Reserve.
What we cannot put right
In fairness, there are a few things sealant will not fix:
- Cracking across the wall rather than at a joint
- Failed render or damaged cladding panels
- Subsidence or other structural problems
Not sure which it is? You can phone 0345 464 0079 or send us an email and we’ll tell you honestly before booking.
Joints and surfaces we work on
- Concrete & block
- Joints between brick and frames
- Render & cladding joints
- Brickwork movement joints
- Façade panels
- Copings & trims
Looking after it afterwards
Simple care keeps the joints in good condition. Our advice:
- Make sure movement joints are not pointed over
- Walk round the building once a year and look at the joints
- Keep water from gutters off the wall
- Point out the joints to other trades
Don’t paint over the new sealant unless we’ve said the product is paintable. Many exterior sealants aren’t designed to be painted and spoil the finish.
Once a joint can’t move, the wall finds another way, often as cracks near the joint. Catch it early and you reduce the risk.
FAQs for Abbey Wood
Can you help a landlord with a rental near Abbey Wood station?
Yes, rental work is part of what we do. You can phone 0345 464 0079 or send us an email with the address and a few details, and we will give you a fixed price before work begins.
Can you do external mastic in Abbey Wood?
Yes, Abbey Wood is within the area we cover. Our work covers London and the South East. Just call 0345 464 0079 or send us an email with a few details of the job, and we will send you a clear quote.
Is it OK to fill a movement joint with cement?
No. Rigid materials can’t move with the wall and the joint fails. Where a joint has been mortared, it can often be raked out and sealed properly.
Should I try DIY first?
You can, for simple jobs. The key is preparation: remove all the old material and work on a clean, dry joint. If it doesn’t work out, we can redo it.
Is it OK to seal over old sealant?
No, and we never do. It can look neat for a few weeks, but the new layer lifts away from the old one. Removing the old sealant completely is the only lasting way.
Do you work at height?
Each building is different. Tell us the height, the number of joints and what’s below them, and we will confirm what access is needed.
How long does external mastic take?
Most jobs take a few hours for a handful of joints, longer for a whole elevation, including the preparation. We will confirm how long when we quote.
What do you put in the joint?
Quality sealants from brands including Arbo and Everbuild, picked for each joint. We explain the product when we quote.