Reading · England
Littlestead Green External Mastic
External mastic for Littlestead Green, by sealant specialists with 20+ years’ experience. Rated 4.9 on Google from 180+ five-star reviews.
- Movement joints with cracked, split or missing sealant
- Rigid filler in a joint that should flex
- Plants rooting in failed movement joints
Surface by surface
Cladding and façade panels
Panels heat up and cool down quickly, so the joints work hard every day. The sealant is chosen with that in mind.
Render joints
The face of render can be soft, so a low-modulus sealant is kinder to the joint edges. Priming is done where the sealant calls for it.
How we handle external mastic in Littlestead Green
Low-level joints can usually be done from the ground. Where joints are higher up, tell us about the building when you get in touch and we will confirm what’s needed to reach them safely. We work on copings & trims, concrete & block and façade panels, and people most often call us about water getting into walls through failed joints and cracked joints where brick meets render or frames.
In a village or hamlet like Littlestead Green, older cottages and farm buildings often stand in the open, so walls and rooflines take the full force of wind and rain. Gutter joints and wall joints there need a sealant that can flex and stay put.
Our work is backed for twelve months, in Littlestead Green and everywhere else we cover.
- Where
- Littlestead Green (RG4)
- Wider area
- Reading
- Cover
- 12 months on all our work
- Quotes
- Quoted before any work starts
- Call
- 0345 464 0079
- Last updated
- 26 October 2026
Also near Littlestead Green
Also in Littlestead Green
Outside joints around Littlestead Green
With historic houses such as Mapledurham House (about 3.9 miles west) nearby, there’s older building stock in the area around Littlestead Green as well as newer homes. Where a home is older, older brick and stone need a sealant that suits them, at the right joint depth. Rainfall in the South East is lower than in much of the UK, yet outdoor joints still have to be sealed dry, so jobs are booked with the weather in mind.
If you let a flat or house near Reading station, outside joints that have cracked can let damp into a rental, so check them between lets. For an older house near a landmark such as All Saints Church, the joints between older walls, newer extensions and the roofline need a sealant that can move. Managing a site like St Martin's Catholic Primary School? Then larger buildings have long runs of movement joint that eventually need resealing.
Littlestead Green is about 1 mile north-east of Caversham, in Reading. Anywhere in RG4, our applicators can take on external mastic. Littlestead Green is one of 34 towns and villages in Reading we cover.
Our applicators cover all of the RG4 postcode area for external mastic and the streets around it. Whether your property is on Row Lane and Foxhill Lane or a nearby road, our applicators can take on the job. Neighbouring places we cover for external mastic include Dunsden Green (1 mile east), Caversham Park Village (1 mile south-west), Emmer Green (1 mile south-west), Play Hatch (1 mile south-east) and Caversham (1 mile south-west). Further out, we also cover Norcot (4 miles south-west), West Reading (3 miles south-west), Tilehurst Within (4 miles south-west), Shinfield (6 miles south), Arborfield Garrison (8 miles south) and Horncastle (5 miles south-west).
Near you in Littlestead Green
Around Littlestead Green, our work takes us to homes and buildings near The Crown Public House, Ali's Pond Local Nature Reserve and Highdown School and Sixth Form Centre, among other places. The nearest railway station is Reading station, about 2.3 miles south-west of the centre. A little further out are Berkshire Medical Heritage Centre Museum (2.6 miles south) and Broad Street Mall (2.7 miles south-west). For a walk, there’s Alder Moors and South Lake.
Can I do it myself?
Overfilling a joint is a classic DIY mistake. A thick, smeared bead looks untidy and doesn’t move well, and getting the depth right matters as much as the look.
The biggest DIY mistake is sealing over old sealant. Silicone does not stick to old silicone, so it peels away and traps moisture behind it. Everything old must be removed first.
How it works
You don’t need to clear the whole room or building before we come, only the area right around the joints. Everything nearby is protected, and the job takes anything from a few hours to several days, depending on the building in most cases. In a small place like Littlestead Green, access is usually the main thing to plan. For outside work, also let us know about exposed walls and any outbuildings involved.
- Each joint is checked and the colour of the new sealant agreed.
- Failed sealant is removed back to clean, sound faces.
- Closed-cell backing rod is pushed in so the sealant bonds to two sides only.
- Primer is applied wherever the sealant needs it.
- We gun in low-modulus sealant and tool it neatly.
Preparing for the visit
- For indoor joints, keep the area dry beforehand if you can
- Move anything stored near the joints
- Mention any leaks or damp you’ve noticed
How to get a quote
Need a quote? Please call 0345 464 0079 or email us with a few details. You will know what we plan to do, and what it will cost, before any work begins.
Related advice
Littlestead Green questions
Will you come out to Littlestead Green?
Yes. Littlestead Green is within the area we cover, which takes in towns, villages and rural addresses. We work across London and the South East. Just mention lanes, gates or anything else about the route when you book.
Do you work for landlords with property near Reading station?
Yes, landlords and agents are among the people we work for. Just ring 0345 464 0079 or drop us an email with the address and what needs doing, and we will give you a clear price.
Where are you based?
We are a Crawley-based firm, with over 20 years’ experience. Our area covers South East England, London and Scotland.
Can you seal joints between two different materials?
Yes. Different materials move at different rates, so a flexible sealant is needed where they meet. We choose one that suits both surfaces.
How often do external joints need resealing?
It varies with how exposed the wall is and how much the joint moves. Signs to watch for are cracking, hardening and gaps at the edges.
Do you remove the old sealant?
Yes. All of the old material is cut out and the joint cleaned.
Is it worth trying it myself?
It depends on the job. High-level, external movement and fire-rated joints are professional jobs, while a short indoor joint may be within reach.
Do the sealants smell?
Possibly a little. It fades as the sealant cures.
Aftercare tips
After the cure time, these simple habits help:
- Wash walls gently around the sealant
- Deal with leaking gutters that soak the joints below
- Show decorators and builders where the movement joints are
- Have failed joints looked at early
Look over the joints once a year, ideally after winter. Watch for splits, edges coming away or growth in the joint.
Once a joint can’t move, the wall finds another way, normally as cracking in the brickwork or render nearby. Resealing it early helps prevent that.
For landlords and businesses
We regularly work with letting and managing agents. Tell us the address, the job and how access works and we’ll quote.
For anyone letting property in or around Littlestead Green, jobs at different addresses can go on one quote. Just tell us the addresses and what each one needs.
When something else is needed
Some problems need a builder, plumber or other trade rather than us:
- Walls that need new movement joints cut into them
- Subsidence or other structural problems
- Failed render or damaged cladding panels
If you are not sure, just phone 0345 464 0079 or send us an email and we’ll give you a straight answer.
Joints and surfaces we work on
- Copings & trims
- Brickwork movement joints
- Render & cladding joints
- Joints between brick and frames
- Façade panels
- Concrete & block
Why deal with it now?
Running new sealant over the old bead rarely lasts. The new layer can’t bond properly to old, weathered material, so the old joint is cut out fully first. Older cottages and farmhouses around Littlestead Green can have timber floors and frames, and water through a failed joint can rot timber if it’s left.
What you pay reflects the work, not guesswork. That is why we ask about the job first.
Why Littlestead Green customers choose us
- Anti-fungal sanitary silicone in wet areas
- Any old sealant cut out fully, not covered over
- One-year guarantee on every job
- You choose the colour before work begins
Take a look at what affects the cost or customer reviews.