Greater London · England
Fullwell Cross External Mastic
External mastic for Fullwell Cross and the surrounding area: the right sealant, proper preparation and a neat finish. Call for a quick quote.
- Gaps where render, brick and frames meet
- Panel joints letting water in
- Joints with sealant missing in places
How we handle external mastic in Fullwell Cross
For buildings in Fullwell Cross, we reseal external joints of all kinds, from brick movement joints to cladding panels. Every joint gets the same careful preparation: clean joint faces and the right depth. If you have cracked joints where brick meets render or frames and weathered mastic that no longer stretches, we can put it right. Whether you’re looking for a local mastic man, a silicone specialist or a sealant contractor in Fullwell Cross, that’s what we do.
In London terraces and converted houses, gutters and walls are often shared with the house next door, so a leaking gutter joint or failed wall joint can affect more than one home. For a flat in Fullwell Cross, check the lease for who looks after the outside.
All our work comes with our 12-month guarantee.
- Where
- Fullwell Cross (IG6, IG5, IG7)
- Wider area
- Greater London
- Cover
- 12 months on all our work
- Quotes
- Quoted before any work starts
- Phone
- 07833 053749
- Page updated
- 26 October 2026
Surface by surface
Render joints
Water behind render can lead to blown patches. Resealing the joints early keeps water out and helps it last.
Cladding and façade panels
Where a cladding system has its own specified sealant, we follow it. Send us any details you have about the façade.
Also near Fullwell Cross
More services for Fullwell Cross
Your questions about external mastic in Fullwell Cross
Is parking a problem for a job in Fullwell Cross?
Parking in Fullwell Cross, as in most of London, takes a little planning: a visitor permit or a bay close to the door helps a lot, so mention what’s available when you book.
Do you work for landlords with property near Seven Kings station?
Yes. We work for landlords and agents as well as homeowners. Just call 07833 053749 or send us an email with the address and what needs doing, and we’ll send you a clear quote.
Do you hold any approvals?
Yes. Mr Mastic is an ARBOMaster approved applicator and we’re fully insured too.
Where do you work from?
Our base is in Crawley, West Sussex, and we work across South East England, London and Scotland.
Is there a guarantee?
Yes. There’s a 12-month guarantee on every job, wherever you are.
Can new sealant go over the old?
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 remove the old sealant?
Always. Sealing over the old bead is the commonest cause of early failure, and it’s something we never do.
How do I get a quote for external mastic in Fullwell Cross?
We don’t publish prices, because the cost depends on the job: how much there is, what’s there now, how we reach it and what it needs. We agree the price before any work begins.
Outside joints around Fullwell Cross
Historic houses like Valentines Mansion (about 1.8 miles south-west) are a reminder that the area around Fullwell Cross has older buildings as well as new. In older buildings, older brick and stone need a sealant that suits them, at the right joint depth. London terraces and converted houses often share gutters, downpipes and walls, so check who is responsible for the outside before booking.
Letting a property close to Seven Kings station? Then outside joints that have cracked can let damp into a rental, so check them between lets. For site and facilities teams at buildings such as Clore Tikva School, its movement joints, gutters and trims need looking after like any other building’s. As a London address, Fullwell Cross can be tricky for parking: tell us about permits, visitor bays or off-street space when you book.
Fullwell Cross is about 2 miles east of Woodford, in Greater London. From the centre of Fullwell Cross to the outskirts, external mastic is available for homes and businesses alike. Our area takes in 786 places across Greater London, from the larger towns to small villages.
Work in IG6, IG5 and IG7 is quoted and booked the same way as anywhere else. If you need external mastic at a property on Horace Road, High Street and Sydney Road or anywhere close by, we can help. We also cover the places around Fullwell Cross: Fairlop (1 mile north), Barkingside (1 mile south), Newbury Park (1 mile south), Gants Hill (1 mile south) and Redbridge (2 miles south-west). Within a short drive, we also cover London (10 miles south-west), City of Westminster (12 miles south-west), Marylebone (11 miles south-west), Kensington (14 miles south-west), St Pancras (10 miles south-west) and Shoreditch (8 miles south-west).
Near you in Fullwell Cross
In Fullwell Cross, that means homes and buildings near Kantor King Solomon High School, Fairlop Waters and The New Fairlop Oak pub and the streets around them. Fullwell Cross’s nearest station is Seven Kings station, roughly 2.3 miles south. Other landmarks nearby include Redbridge Museum (2.6 miles south) and Claybury Hospital (0.8 miles north-west). For a walk, there’s Hainault Lodge and Highams Park Lake.
What affects the cost of external mastic
We quote each job individually. These are the things that affect it:
- How many rooms, windows or areas are involved
- When we can work, for business premises
- The number and length of the joints
- Mould in or behind the old joints
Rather than a set price list, we look at what your job involves: how many joints, what’s in them now and how we reach them. The price is agreed before we begin.
What we need to know
To help us quote quickly, let us know:
- The address or postcode of the job
- The type of property
- The rough size of the job
- Any access issues, like height or stairs
For external mastic in Fullwell Cross, phone 07833 053749 or send us an email. Tell us what the problem is and where, and you will get a clear quote before work begins.
Can I do it myself?
Not every job suits DIY: work at height, external movement joints, fire-rated sealant and large areas call for the right materials, safe access and experience.
If you’ve already had a go yourself, that’s fine. We cut it out and start again, so just mention it when you contact us.
How it works
We keep the work tidy and contained to the area we’re working on, so you can get on with your day. Expect the work to take anything from a few hours to several days, depending on the building, and we tell you how long to leave it before we go. In Fullwell Cross, 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.
- First we look over the joints with you, agree which to renew and talk through access.
- The old mastic and anything lodged in the joint is removed.
- We clean both faces of the joint and prime them where the product calls for it.
- Backing rod goes in next, setting the depth and keeping the sealant off the back of the joint.
- The new sealant, chosen to suit the brick or render, is applied and tooled to a neat finish.
Preparing for the visit
- Let us know about parking restrictions
- Mention any tricky access
- Clear items away from the joints we’re working on
Get a quote
We quote each job on its own. Just ring 07833 053749 or send us an email with the details and send photos if you have them.
Related advice
When something else is needed
We’d rather tell you now than do work that will not last, so these are the limits:
- Cracks in the bricks or render themselves, away from the joints
- Damp that isn’t coming from the joint
- Movement that is more than a sealant joint can take
If you’re not sure, just ring 07833 053749 or email us and we will give you a straight answer.
Surfaces we seal
- Joints between brick and frames
- Render & cladding joints
- Façade panels
- Brickwork movement joints
- Copings & trims
- Concrete & block
How to look after the new joints
No joint lasts for ever, but care makes a real difference. Our tips:
- Never let anyone fill a movement joint with mortar
- Deal with leaking gutters that soak the joints below
- Don’t let climbing plants root in the sealant
- Ask before painting over external sealant
Do not let soil, plants or ivy build up against the new joints. Anything that holds water against the joint wears it out sooner.
An open movement joint lets rain into the wall every time it pours. Over time it can mean damp inside, stained render or frost-damaged brick.
What happens if it’s left?
It often makes sense to reseal all the failing joints on an elevation together. Joints of the same age tend to fail together. In a flat in Fullwell Cross, failed sealant seldom stays inside your own four walls: water from a shower or window joint can reach the flat below, and gaps in fire-stopping matter to everyone in the building.
What you pay reflects the work, not a rough estimate. That’s why we ask about the job first.
Why Fullwell Cross customers choose us
- Tidy, careful work
- One-year guarantee on every job
- Arbo and Everbuild products
- Old sealant always removed completely
Read our cost guide or customer reviews.