Greater London · England
External Mastic in Ivybridge
Our applicators work in Ivybridge on sealing brickwork movement joints, render, cladding and façade joints. Old sealant removed completely, joints prepared properly and every job guaranteed for a year.
- Joints with sealant missing in places
- Rain getting behind render or cladding at a joint
- Joints pointed up with cement by mistake
How we handle external mastic in Ivybridge
Getting the depth right is half the job. Backing rod controls how deep the sealant goes and keeps it off the back of the joint, leaving it bonded to two faces so it can move with the wall. We work on render & cladding joints, façade panels and copings & trims, and people most often call us about hard, crazed mastic that has stopped moving and sealant pulling away from one side of the joint.
Outside work in London starts with access: side passages, upper floors and where to park. For a home in Ivybridge, tell us how high the joints are and how to reach the back of the building.
A one-year guarantee comes as standard, so you’re not left on your own once the job is done.
- Place
- Ivybridge (TW7, TW1, TW2)
- Region
- Greater London
- Guarantee
- A year, on every job
- Quotes
- A clear price before we start
- Call
- 0345 464 0079
- Updated
- 26 October 2026
What we cannot put right
We’d rather tell you now than do work that won’t last, so these are the limits:
- Movement that is more than a sealant joint can take
- Cutting new joints into brickwork, which is building work rather than sealant work
- Rising or penetrating damp from elsewhere in the wall
Not sure which it is? You can call 0345 464 0079 or email us and we’ll tell you honestly before booking.
Joints and surfaces we work on
- Copings & trims
- Brickwork movement joints
- Concrete & block
- Render & cladding joints
- Façade panels
- Joints between brick and frames
What we’re called out for in Ivybridge
Weeds, moss and debris in a joint are a sign the sealant has gone. Roots and dirt hold water against the wall and make things worse.
Signs it’s time to call us include:
- Panel joints letting water in
- Joints with sealant missing in places
- Gaps where render, brick and frames meet
- Old sealant gone brittle and cracked
Schools such as Chase Bridge Primary School are buildings too, and movement joints, cladding joints and gutters on larger buildings need the same care as a house’s.
What your quote should include
- When the joint can take water or movement
- What the quote includes, VAT included or not
- How hidden problems are handled
- How long the guarantee is
How we quote for external mastic
We quote each job individually. These are the things that affect it:
- How much old sealant there is and how hard it is to remove
- Whether there’s mould to deal with
- The amount of work
- How easy the joints are to reach
We do not show prices on the website, because the cost depends so much on the job itself. For a quick quote, please phone 0345 464 0079 or email us and we’ll talk you through it.
Helping us quote
To help us quote quickly, let us know:
- Any access issues, like height or stairs
- How many joints, rooms or windows are involved
- The problem you’ve noticed
- Whether it has been sealed before
Getting a quote is simple: let us know what needs doing and where, and roughly how big it is. A few pictures by email make the job easier to understand, and we will take it from there.
How it 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 job generally takes anything from a few hours to several days, depending on the building from start to finish. For a job in Ivybridge, parking and access are the things to plan: let us know about parking, the floor we will be working on and any lift or shared entrance.
- We look at every joint and agree a colour to suit the wall.
- Failed sealant is removed back to clean, sound faces.
- Backing rod goes in so the sealant can stretch between the two faces.
- Primer is applied wherever the sealant needs it.
- A low-modulus exterior sealant is gunned in and tooled to a neat finish.
How to prepare
- Where the joints are inside, avoid wetting them before we arrive
- Tell us if parking is tricky
- Let us know about stairs, lifts or work at height
Ask for a quote
We quote each job on its own, so start by telling us what you need. Simply phone 0345 464 0079 or email us and describe the job.
Read more
Should I try it myself first?
Sealing over old silicone is the commonest DIY error. Silicone does not stick to old silicone, so it peels away and traps moisture behind it. Everything old must be removed first.
What a professional job adds is preparation and the right product. We take joints back to clean, dry surfaces, and the sealant is matched to the joint and its conditions, and the work is guaranteed for a year.
Landlord and commercial work in Ivybridge
A neglected joint can let water reach the structure, which matters even more when someone else lives there. Resealing at the right time is simple maintenance that we can handle for you.
Businesses can book us for washrooms, kitchens, offices and more. For commercial premises, we can talk through working times when we quote.
How the job changes by surface
Brickwork movement joints
People sometimes point up a brick movement joint by mistake. If that is happened, we rake it out and reseal it properly where it can be done safely.
Concrete and blockwork
Blockwork and concrete shrink over time and move with the seasons. We reseal their joints with backing rod and a flexible product.
Nearby places to Ivybridge
Other services in Ivybridge
External mastic in Ivybridge: local notes
The South East is one of the drier parts of the UK, yet outdoor joints still have to be sealed dry, so jobs are booked with the weather in mind. Historic houses like Richmond House (about 1.1 miles south-east) are a reminder that the area around Ivybridge has older buildings as well as new. Where a home is older, older brick and stone need a sealant that suits them, at the right joint depth.
If you let a flat or house near Twickenham station, failed wall and movement joints let damp in, so they’re worth checking between tenancies. Historic houses such as Richmond House, about 1.1 miles south-east, show how far back building around Ivybridge goes, and older homes nearby need a sealant that suits their walls.
Ivybridge is about 1 mile south-east of Hounslow, in Greater London. Anywhere in TW7, we cover external mastic for homes and businesses. Across Greater London, we cover 764 places, and Ivybridge is one of them. Our London page covers work nearby (11 miles or so).
Postcode districts we cover here for external mastic: TW7, TW1 and TW2. Whether your property is on Hall Road, Rugby Road and Mogden Lane or a nearby road, we can help. Close by, we work in Hounslow (1 mile north-west), Woodlands (1 mile north), Twickenham (1 mile south), Isleworth (1 mile north-east) and St Margarets (1 mile east). Further out, we also cover London (11 miles east), City of Westminster (9 miles north-east), Marylebone (9 miles north-east), Kensington (7 miles north-east), St Pancras (11 miles north-east) and Shoreditch (12 miles east).
What’s near Ivybridge
Typical jobs here are in homes near The Richmond upon Thames School, Inwood Park and Duke of Cambridge pub, among other places. Ivybridge’s nearest station is Twickenham station, roughly 0.8 miles south-east of the centre. Nearby you will also find South Middlesex Hospital (under half a mile south-east) and Treaty Centre (1.2 miles north-west). Not far away are Richmond Hill and Garden Lake.
Your questions about external mastic in Ivybridge
Can you help a landlord with a rental near Twickenham station?
Yes, we work for letting agents and landlords. Just phone 0345 464 0079 or send us an email and tell us about the property, and we will give you a clear quote.
Is parking a problem for a job in Ivybridge?
Parking in Ivybridge, 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.
Can you work on commercial sites?
Yes. Hotels, offices and other businesses use us and we are fully insured.
Can you match the colour of my brickwork?
The sealant colour is picked to suit the wall, so the joint sits quietly in the wall. There’s a wide choice of exterior colours.
Do you work at height?
It depends on the height and the site. Low-level joints are straightforward; for higher ones, send details and we will confirm the access.
What sealant do you use?
Each joint gets the product that suits it. Movement, water and weather all affect the choice, and we’ll tell you what we’re using.
Do you take out the old sealant first?
Yes. All of the old material is cut out and the joint cleaned before applying anything new.
Are you insured?
Yes. Mr Mastic is fully insured, with over 20 years’ experience in sealant work.