West Berkshire · England
External & façade joints in Fair Cross, West Berkshire
External mastic for Fair Cross and the surrounding area: the right sealant, proper preparation and a neat finish. Call for a quick quote.
- Sealant pulling away from one side of the joint
- Damp patches traced to an open external joint
- Gaps where render, brick and frames meet
How to look after the new joints
After the cure time, these simple habits help:
- Have failed joints looked at early
- Never let anyone fill a movement joint with mortar
- Keep high-pressure jets off the joints
- Check external joints each spring
Keep pressure washers away from the sealant. High-pressure water can lift the edges over time.
Once a joint cannot move, the wall finds another way, normally as cracking in the brickwork or render nearby. Resealing it early helps prevent that.
About our external mastic in Fair Cross
Where two different materials meet, such as brick and render or blockwork and metal, they move at different rates. A flexible exterior sealant takes up that movement. If you have damp patches traced to an open external joint and movement joints with cracked, split or missing sealant, we can help, whatever the surface.
External sealant needs dry, clean surfaces, so work around Fair Cross is planned for dry weather. Tell us about access to all sides of the building, including outbuildings and garages.
Whatever the size of the job, you get the same one-year guarantee in Fair Cross and across West Berkshire.
- Place
- Fair Cross (RG7)
- Wider area
- West Berkshire
- Cover
- 12 months on all our work
- Quotes
- A clear price before any work starts
- Call
- 0345 464 0079
- Page updated
- 26 October 2026
How the visit works
On the day, there’s very little for you to do. Point us to the joints and we will get on with it. The work itself takes a few hours to a few days, depending on the length of joint and the access. Somewhere like Fair Cross needs a little journey planning: let us know about lanes, gates and parking. Everything for the job comes with us, so a second trip is avoided where possible.
- We start by checking each joint, agreeing the ones to redo and how we will reach them.
- Old sealant and any debris are cut and raked out.
- The joint faces are cleaned and primed where the sealant needs it.
- We push in closed-cell backing rod so the sealant is the right depth and bonds to the sides only.
- We gun in a flexible exterior sealant in a colour that suits the wall and tool it neatly.
Preparing for the visit
- For business premises, tell us about site rules or sign-in
- Tell us about access, such as stairs, a lift or high-level joints
- Where the joints are inside, avoid wetting them before we arrive
Get a quote
For a quote, ring 0345 464 0079 or email us and tell us where the job is and what the problem looks like. We will give you a clear quote before any work starts.
Read more
Quotes for external mastic in Fair Cross
You’ll get a clear quote before we start. It’s based on:
- The number of rooms or windows
- The size of the job
- The old material and how stubborn it is
- The product the joint needs
The cost depends on how much there is to do, how hard the old material is to remove and how easy the joints are to reach. You’ll have a clear quote before any work starts, so you know where you stand.
Helping us quote
When you contact us, these details help:
- Roughly how big the job is
- Pictures of the joints, sent by email
- What’s wrong with the joints now
- How we’d reach the joints
Asking for a quote is easy: let us know the job and the location. Photos by email help us understand the job, and we will come back to you with a quote.
What the job involves on each surface
Copings and trims
Copings expand and contract through the day, so a flexible sealant suits them best year round.
Brickwork movement joints
Brick walls have vertical movement joints to absorb expansion. We reseal them with a low-modulus sealant over backing rod.
Why act early in Fair Cross
It often makes sense to reseal all the failing joints on an elevation together. 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 Fair Cross, wind-driven rain gets into any failed joint, and older walls, once damp, take a long time to dry.
What you pay reflects the work, not guesswork. That is why we ask about the job first and send you a clear quote before we start.
Why Fair Cross clients choose us
- An ARBOMaster approved applicator
- White, clear, grey or coloured to suit, where the product allows
- Domestic, commercial and hotel work
- Over 20 years’ experience
See what affects the cost and our reviews.
What external mastic looks like in Fair Cross
Historic houses like Stratfield Saye House (about 0.7 miles south) are a reminder that the area around Fair Cross has older buildings as well as new. Where a home is older, older walls and rooflines need a sealant that moves with them and suits the material. The South East is one of 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 Church of St. Mary the Virgin, the joints between older walls, newer extensions and the roofline need a sealant that can move.
Fair Cross is about 6 miles east of Tadley, in West Berkshire. Homes, rented property, offices and hotels in Fair Cross is covered for external mastic, old or new, large or small. The work is guaranteed for a year. Our area takes in 155 places across West Berkshire. For nearby work, see our Reading page, about 6 miles away.
Jobs for external mastic in RG7 is quoted and booked the same way as anywhere else. Neighbouring places we cover for external mastic include Stratfield Saye (1 mile south-west), West End Green (2 miles west), Stratfield Mortimer (2 miles north-west), Spanish Green (2 miles south) and Wokefield (3 miles north-west). Within a short drive, we also cover Newbury (14 miles west), Thatcham (11 miles west), Burghfield Common (4 miles north-west), Speenhamland (14 miles west), Spencers Wood (3 miles north-east) and Calcot (6 miles north).
Landmarks near Fair Cross
The closest station to Fair Cross is Mortimer station, roughly 1.7 miles north-west of the centre. Other landmarks nearby include Beaumys Castle (1.5 miles north-east). Open spaces near Fair Cross include Longwater and The Marshes Local Nature Reserve.
What sealant work can’t fix
Some problems need a builder, plumber or other trade rather than us:
- Cracking across the wall rather than at a joint
- Loose or hollow render, which needs re-rendering
- Subsidence or other structural problems
If in doubt, ring 0345 464 0079 or send us an email and we’ll say what we think.
Surfaces we seal
- Render & cladding joints
- Joints between brick and frames
- Concrete & block
- Façade panels
- Brickwork movement joints
- Copings & trims
Fair Cross: your questions answered
Is Fair Cross in your area for external mastic?
Yes. We work across London and the South East, and Fair Cross is part of that. You can call 0345 464 0079 or send us an email and tell us what needs doing, and we will send you a clear quote.
I let a flat near Mortimer station. Can you help?
Yes, we work for landlords and letting agents. You can phone 0345 464 0079 or send us an email with the address and a few details, and we will give you a fixed price before any work starts.
Where is Mr Mastic based?
We are a Crawley-based firm. Our area covers South East England, London and Scotland.
What colours does the sealant come in?
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.
Is it OK to seal over old sealant?
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 I have to be there?
That depends on where the joints are. For work indoors, someone needs to let us in, and for outside work we’ll agree access with you when we book.
What is a movement joint?
A vertical gap in a long brick wall is usually a movement joint. It lets the bricks expand without cracking, and it should be sealed with a flexible sealant.
How long will you be here?
It depends on the size of the job, but as a guide it takes a few hours for a handful of joints, longer for a whole elevation. We’ll give you a better idea when we quote.
What we are called out for in Fair Cross
Weeds, moss and debris in a joint are a sign the sealant has gone. Dirt and roots then trap moisture in the joint and make things worse.
These are the problems we’re asked about most:
- Joints with sealant missing in places
- Failed sealant between panels on a façade
- Joints where the bead has come unstuck
- Movement joints filled with mortar instead of sealant
Rented homes near Mortimer station change hands often, and split movement joints are easy to miss on a rental until damp shows inside.
What your quote should include
- What product goes in the joint
- What guarantee comes with the work
- How long to leave it before use
- What preparation is included