Greater London · England
Barkingside External Mastic
Movement joints in Barkingside need attention? We remove the old material, prepare the joints and seal them properly, with a 12-month guarantee.
- Gaps where render, brick and frames meet
- Sealant that has lost its bond to the brick or render
- Brick movement joints where the sealant has split
How we handle external mastic in Barkingside
Joints between dissimilar materials, like brick against render or concrete against a steel frame, see movement from both sides. A flexible sealant bridges the two where a rigid filler would soon crack. Typical jobs include joints where the bead has come unstuck and leaking joints around cladding and façade panels, across render & cladding joints, joints between brick and frames and copings & trims.
Newer London blocks are built with movement joints in brick and render, and with cladding joints sealed with mastic. Older terraces have their own weak points: gutter joints, roofline trims and the joint where an extension meets the original wall.
The work is covered for a year after we finish. If there’s a problem with it, please ring 0345 464 0079 or email us.
- Place
- Barkingside (IG6, IG2, IG5)
- Wider area
- Greater London
- Guarantee
- 12 months on all our work
- Quote
- A clear quote up front
- Phone
- 0345 464 0079
- Updated
- 26 October 2026
What affects the quote in Barkingside
There’s no set price list, because jobs vary so much. What we look at:
- The size of the job
- How easy the joints are to reach
- The product the joint needs
- The number of rooms or windows
The cost reflects the work involved, not a rough estimate. That’s why we ask a few questions first and give you a clear price before work begins.
Asking for a quote
Photos by email are helpful but not essential. Try to tell us:
- A few pictures by email, if you can
- If someone has resealed it before
- Where the property is
- What’s wrong with the joints now
We do not publish a price list. Instead, your job gets its own clear quote. To get started, ring 0345 464 0079 or email us.
Nearby places to Barkingside
Other services in Barkingside
DIY sealant or a professional job?
If you’ve already had a go yourself, that is fine. We cut it out and start again.
Too much sealant is as bad as too little. A heavy bead looks messy and copes badly with movement, and the joint depth matters as much as the finish.
Signs you need external mastic in Barkingside
Sunlight, wet weather and frost wear exterior sealant down. In time it goes hard, crazes on the surface and stops stretching, so the joint eventually tears or comes away from one side.
People normally contact us when they notice something like this:
- Movement joints with cracked, split or missing sealant
- Weathered mastic that no longer stretches
- Rigid filler in a joint that should flex
- Moss and dirt in joints with no sealant left
For landlords with property near Seven Kings station, failed wall and movement joints let damp in, so they’re worth checking between tenancies.
What your quote should include
- Whether VAT is included
- How the colour is chosen
- What happens if they find a problem under the old sealant
- Who does the work, and how experienced they are
Landlords, agents and businesses in Barkingside
We also work for property managers and facilities teams in Barkingside and across Greater London. We can quote a run of properties together, and we are fully insured for the work.
Water getting past a failed joint can damage the building, which is a bigger problem in a rented property. Resealing at the right time is simple maintenance.
Barkingside: your questions answered
Can parking be tricky for a visit in Barkingside?
It can be, so it helps to tell us about permits, visitor bays or off-street space when you book. That way the visit can be planned around it.
Can you help a landlord with a rental near Seven Kings station?
Yes, rental work is part of what we do. Just ring 0345 464 0079 or email us and tell us about the property, and we’ll send you a clear quote.
Will the old sealant be removed?
Yes, every time. New silicone does not stick to old silicone, so the joint is cleaned back first.
When is the sealant fully cured?
It depends on the product. We tell you how long to leave it before we go.
Is there a guarantee?
Yes, for a year. If anything isn’t right with the work within the year, let us know and we’ll sort it.
Will the new joint stand out?
Exterior sealants are made in a range of colours, from greys and browns to whites and stone shades. We pick the one that suits your wall best so the joint does not draw the eye.
Is it worth trying it myself?
Some simple jobs can be done by a careful DIYer. The usual mistakes are sealing over old sealant, sealing a damp joint and using too much.
How do you reach high-level joints?
That depends on the building and the joints. Where joints can be reached safely, we will do them. Tell us about the building and we’ll confirm what access is needed.
Surface by surface
Joints between dissimilar materials
Each side of the joint may need its own preparation. Both surfaces are cleaned and primed as the product requires.
Copings and trims
Metal and stone copings both move with temperature, so the joints need a sealant that stays flexible in all weathers.
What happens if it’s left?
Resealing a run of joints in one go is usually better than patching one at a time. They’ve weathered the same way. Damp from a failed joint spreads quietly in older London brickwork and timber, and by the time it shows on a wall or ceiling in Barkingside, the repair is bigger than the sealant job would have been.
Commercial jobs are quoted on the same basis as homes: the amount of work, the access and the products needed, along with when we can work on site. Call for a quick quote and we’ll go through it with you.
What you get with us
- Trusted Arbo and Everbuild sealants
- Anti-fungal silicone where joints get wet
- 4.9 on Google from 180+ five-star reviews
- Experience in homes, commercial sites and hotels
Take a look at how sealant jobs are priced or our reviews.
What happens on the day
There isn’t much for you to do on the day. Show us the job and we will take it from there. The work itself takes a few hours for a handful of joints, longer for a whole elevation from start to finish. For a job in Barkingside, parking and access are the things to plan: let us know about parking, the floor we’ll be working on and any lift or shared entrance.
- First we look over the joints with you, agree which to renew and talk through access.
- Old sealant and any debris are cut and raked out.
- The joint faces are cleaned and primed where the sealant needs it.
- Backing rod goes in next, setting the depth and keeping the sealant off the back of the joint.
- We gun in a flexible exterior sealant in a colour that suits the wall and tool it neatly.
Preparing for the visit
- Try not to wet indoor joints just before the visit
- Mention any leaks or damp you’ve noticed
- Tell us about any previous sealing or DIY attempts
Getting a quote
We quote each job on its own, so start by telling us what you need. Simply call 0345 464 0079 or send us an email and describe the job and send pictures if you have them.
Related advice
Outside joints around Barkingside
London and the South East are among the drier parts of the UK, but outside sealant still needs a dry, clean surface, so outdoor work is planned around the forecast. Historic houses like Valentines Mansion (about 1.2 miles south-west) are a reminder that the area around Barkingside 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.
For an older house near a landmark such as Children's Church And Lych Gate At Barnardo's, old and new materials meet at the roofline and walls, which is where sealant earns its keep. If you look after a building such as Avanti Court Primary School, larger buildings have long runs of movement joint that eventually need resealing.
Barkingside is about 3 miles south-east of Woodford, in Greater London. Across the IG6 area, we cover external mastic for homes and businesses. Across Greater London, we cover 764 places, and Barkingside is one of them. We also work in London, about 10 miles from Barkingside.
We cover every part of the IG6, IG2 and IG5 postcode area for external mastic. External mastic is available to properties on Bute Road, Duke Road and Oaks Lane. We also cover the places around Barkingside: Newbury Park (1 mile south), Fullwell Cross (1 mile north), Gants Hill (1 mile south-west), Fairlop (1 mile north) and Seven Kings (1 mile south-east). Further out, we also cover London (10 miles south-west), City of Westminster (11 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).
Around Barkingside
Around Barkingside, our work takes us to homes and buildings near The New Fairlop Oak pub, Fairlop Waters and Ilford County High School. Barkingside’s nearest station is Seven Kings station, roughly 1.6 miles south of the centre. Other landmarks nearby include King George Hospital (1.2 miles east) and Redbridge Museum (2 miles south). Not far away are Hollow Pond and Hainault Lodge.