Wokingham · England
Langley Common External Mastic
External mastic for Langley Common and the surrounding area: careful preparation, the right product and tidy work. Ask us for a quick quote.
- Rain getting behind render or cladding at a joint
- Plants rooting in failed movement joints
- Leaking joints around cladding and façade panels
Surface by surface
Render joints
Render is weaker at the surface than brick, so a sealant that stretches easily protects the edges. We prime where the product needs it.
Copings and trims
Copings expand and contract through the day, so the joints need a sealant that stays flexible year round.
External mastic in Langley Common
Ground-floor and low-level joints are straightforward to reach. Where joints are higher up, tell us about the building when you get in touch and we will confirm what access is needed. If you have old sealant gone brittle and cracked and failed sealant between panels on a façade, we can put it right.
Outside joints can only be sealed when they’re dry, so work in Langley Common is booked around the forecast. Let us know about access to every wall, plus any garages or outbuildings.
Our work is backed for twelve months, in Langley Common and everywhere else we cover.
- Location
- Langley Common (RG40, RG41)
- Wider area
- Wokingham
- Cover
- A year, on every job
- Quote
- A clear quote up front
- Telephone
- 0345 464 0079
- Page updated
- 26 October 2026
Towns and villages near Langley Common
Other services in Langley Common
Why act early in Langley Common
Resealing a run of joints in one go is usually better than patching one at a time. Joints of the same age tend to fail together and it means sorting access once. Where a wall is exposed, as many are in small places like Langley Common, wind-driven rain gets into any failed joint, and damp in older walls is slow to dry out.
A few things move the cost up or down: how much old sealant there is and how stubborn it is, whether mould needs treating, and whether the work is at height. We take all of that into account in your quote.
Why us?
- Any old sealant cut out fully, not covered over
- Over 20 years’ experience
- White, clear, grey or coloured to suit, where the product allows
- Anti-fungal sanitary silicone in wet areas
Read our cost guide and our reviews.
Work for landlords, hotels and businesses
For anyone letting property in or around Langley Common, several properties can go on one quote. Send us the addresses and the work at each.
We regularly work with letting and managing agents. Send the address, what’s needed and the access arrangements.
Outside joints around Langley Common
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.
In the older streets around St Eligius, an extension built onto an older house moves differently, and the joint between them takes the strain. If you look after a building such as The Coombes Church of England Primary School, larger buildings have long runs of movement joint that eventually need resealing.
Langley Common is about 2 miles south-west of Wokingham, in Wokingham. Whether you’re in the middle of Langley Common or further out, external mastic is available for homes and businesses alike, from flats and houses to offices and hotels. 35 places in Wokingham are on our list, large and small.
Here we cover the RG40 and RG41 postcode area for external mastic. You’ll find streets such as Langley Common Road and School Road, and we cover them all. If you’re just outside Langley Common, we cover Barkham (1 mile east), Arborfield Garrison (1 mile south), California (1 mile south-east), Eversley (2 miles south) and Finchampstead (3 miles south-east). We also work in nearby towns such as Reading (5 miles north-west), Woodley (4 miles north), Earley (3 miles north-west), Crowthorne (4 miles east), Lower Earley (3 miles north-west) and Winnersh (3 miles north).
Near you in Langley Common
Locally, jobs take us to homes and businesses close to The Bramshill Hunt pub, Shepperlands Farm Nature Reserve and Bohunt School Wokingham, among other places. Langley Common’s nearest station is Wokingham station, roughly 2.5 miles north-east of the centre. Well-known places in the area include Beaumys Castle (4 miles west) and Berkshire Library & Museum of Freemasonry (2.1 miles north). The countryside around Langley Common includes South Lake and Holt Copse & Joel Park.
DIY versus a professional finish
A DIY attempt doesn’t rule out a professional job. We remove it and do the joint properly.
Too much sealant is as bad as too little. A thick, smeared bead looks untidy and does not move well, and the joint depth matters as much as the finish.
Common problems we fix in Langley Common
Sunlight, wet weather and frost wear exterior sealant down. In time it goes hard, crazes on the surface and stops stretching, so the next time the wall moves, it splits or pulls away.
People usually contact us after spotting one of these:
- Moss and dirt in joints with no sealant left
- Cracked joints where brick meets render or frames
- Movement joints with cracked, split or missing sealant
- Old sealant gone brittle and cracked
If you let a flat or house near Wokingham station, failed wall and movement joints let damp in, so they’re worth checking between tenancies.
Questions to ask before booking
- When the joint can take water or movement
- Who turns up on the day
- Whether you can choose the colour
- How hidden problems are handled
Common questions in Langley Common
I let a flat near Wokingham station. Can you help?
Yes, landlords and agents are among the people we work for, and several properties can be quoted together. Just phone 0345 464 0079 or send us an email with the address and what needs doing, and we will give you a clear price.
Do you cover smaller places like Langley Common?
Yes, Langley Common is covered. Our work covers London and the South East, from towns to the smallest places. Longer journeys are simply planned in advance.
What colours does the sealant come in?
We choose a sealant colour to suit the brick, stone or render, so the joint sits quietly in the wall. Exterior sealants come in a good range of colours.
How long does external mastic take?
That depends on the amount of work, but as a guide it takes a few hours for a handful of joints, longer for a whole elevation. We will give you a better idea when we quote.
Can I add another job to the visit?
Yes. Just list everything you need and you’ll get one quote.
Why do you put foam in the joint first?
We fit closed-cell backing rod wherever the joint depth needs controlling. It sets the sealant depth and prevents three-sided bonding, so the joint can move.
How much does external mastic cost in Langley Common?
Every job is different, so each one gets its own quote. To get one, phone 0345 464 0079 or send us an email and tell us what needs doing and where.
When is the sealant fully cured?
Cure times vary by product and the conditions. We tell you how long to leave it before we go.
How it works
We work through the job in order: protect, prepare, seal, tidy. Typically it takes a few hours to a few days, depending on the length of joint and the access. In a small place like Langley Common, access is normally the main thing to plan. If the job is outside, mention outbuildings, exposed walls and how to reach them.
- 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.
Before we arrive
- Mention any tricky access
- Tell us about any previous sealing or DIY attempts
- On commercial sites, let us know about site rules
Getting a quote
Call for a quick quote, or send an email if you’d rather. Tell us about the joints that need doing and we will explain what’s involved and send you a clear quote.
Read more
How to look after the new joints
Joint life depends on how it’s used and looked after. Here’s what we suggest:
- Keep high-pressure jets off the joints
- Check the sealant is paintable before painting near it
- Walk round the building once a year and look at the joints
- Deal with leaking gutters that soak the joints below
Make sure anyone working on the wall later knows where the movement joints are. They must stay as flexible joints, never rendered or pointed over.
If you can see gaps, plants or bare sections in a joint, have it checked. Early work is quicker and leaves a better finish.