West Berkshire · England
External & façade joints in Speen, West Berkshire
Sealing brickwork movement joints, render, cladding and façade joints for homes and businesses in Speen and across West Berkshire. ARBOMaster approved applicators, fully insured, with a 12-month guarantee.
- Weeds or debris growing in open joints
- Failed seals between different materials
- Joints where the bead has come unstuck
Different surfaces, different methods
Render joints
Render has movement joints and stop beads that need sealing. They’re resealed in a sealant that suits the render.
Joints between dissimilar materials
Different materials may need different primers. We prepare both faces so the sealant bonds properly.
External mastic in Speen, done properly
Movement joints let brickwork, render and cladding expand and shrink without cracking. The sealant in it has to stretch and squeeze for years, so once it splits or hardens, the joint stops working and water gets in. If you have joints pointed up with cement by mistake and moss and dirt in joints with no sealant left, we can put it right, whatever the surface.
Somewhere as small as Speen, homes and farm buildings often face open ground, where walls and rooflines take the weather head on. Gutter joints and wall joints there need a sealant that can flex and stay put.
Our work is backed for twelve months.
- Location
- Speen (RG14, RG20)
- Wider area
- West Berkshire
- Cover
- One year on every job
- Quote
- A clear quote up front
- Telephone
- 0345 464 0079
- Updated
- 26 October 2026
Keeping the joints in good condition
Good habits help new joints last longer. A few tips:
- Deal with leaking gutters that soak the joints below
- Act on the first splits you see
- Point out the joints to other trades
- Clear growth from the base of walls and joints
Avoid pressure-washing straight into the joints. A strong jet can damage the edges of the bead.
If you can see gaps, plants or bare sections in a joint, have it checked. Earlier resealing means a smaller job and a better result.
When it is not the sealant
Some problems need a builder, plumber or other trade rather than us:
- Walls that need new movement joints cut into them
- Damp from another source, such as a leaking gutter or a bridged damp-proof course
- Subsidence or other structural problems
If you are not sure, just ring 0345 464 0079 or drop us an email and we will give you a straight answer before you book.
Joints and surfaces we work on
- Brickwork movement joints
- Render & cladding joints
- Joints between brick and frames
- Façade panels
- Copings & trims
- Concrete & block
How we quote for external mastic
Call for a quick quote. The main things that affect it are:
- How many rooms, windows or areas are involved
- The number and length of the joints
- How easy the joints are to reach
- Mould in or behind the old joints
Instead of a standard rate, we price the job in front of us: the amount of work, the old material and the access. You’ll know the price before we begin.
Asking for a quote
A few details help us give you an accurate quote. When you ask for a quote, tell us:
- The type of property
- Whether it has been sealed before
- The address or postcode of the job
- Photos by email, if that’s easy
There’s no standard price list, as no two jobs are quite the same. Instead, your job gets its own clear quote. To get started, call 0345 464 0079 or email us.
Towns and villages near Speen
More services for Speen
DIY sealant or a professional job?
Not every job suits DIY: high-level joints, fire-rated gaps, external movement joints and big jobs need the right product, the right access and the right method.
Overfilling a joint is a classic DIY mistake. A heavy bead looks messy and copes badly with movement, and the joint depth matters as much as the finish.
What we do, step by step
Good joint work is mostly preparation, and we don’t rush it. Every joint is cleaned and dried before new material goes in. All told, the work takes anything from a few hours to several days, depending on the building. In a small place like Speen, access is generally 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.
- 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.
How to prepare
- Mention if the joints have been sealed before
- Clear items away from the joints we’re working on
- Try not to wet indoor joints just before the visit
Ask for a quote
The more we know about the job, the more useful the quote. Let us know the location, the problem and roughly how many joints, and add photos by email if you can.
Related advice
Signs you need external mastic in Speen
Buildings move more than people expect. Brickwork grows a little over the years, blockwork and concrete shrink, and all of it moves with heat and moisture. All of that ends up in the joint sealant.
Signs it’s time to call us include:
- Cracked joints where brick meets render or frames
- Sealant pulling away from one side of the joint
- Water getting into walls through failed joints
- Plants rooting in failed movement joints
For landlords with property near Newbury station, split movement joints are easy to miss on a rental until damp shows inside.
What to look for in a quote
- How the joint is cleaned and prepared
- What the cure time is
- What happens if they find a problem under the old sealant
- Whether you can choose the colour
Common questions in Speen
Can you help a landlord with a rental near Newbury station?
Yes, rental work is part of what we do. Just phone 0345 464 0079 or email us and tell us about the property, and we’ll give you a clear quote.
Do you cover Speen for external mastic?
Yes, Speen is within the area we cover. We work across London and the South East. You can phone 0345 464 0079 or drop us an email and tell us what needs doing, and we will give you a clear quote.
Do you hold any approvals?
Yes. We are an ARBOMaster approved applicator, which is run for the Arbo sealant brand.
Should I point up the gap in my brickwork?
No, not where the gap is a movement joint. Pointing it stops it working, and the wall may crack nearby. A flexible sealant is the right fill.
Where is Mr Mastic based?
We’re a Crawley-based firm, with over 20 years’ experience. We work across South East England, London and Scotland.
Is there any odour?
Some sealants have a smell while they cure, but it fades. Opening a window helps.
Do I need to be at home?
That depends on where the joints are. Inside work needs someone to give us access, and for outside work we will agree access with you when we book.
Can you reach joints on upper floors?
That depends on the building and the joints. We work on joints that can be reached safely. Give us some details and we’ll confirm the access.
Outside joints around Speen
Historic houses like Benham Park (about 0.9 miles west) are a reminder that the area around Speen 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. The South East is one of the drier parts of the UK, though outdoor sealant still has to go onto a dry joint, so the forecast decides the day.
For site and facilities teams at buildings such as Robert Sandilands Primary School and Nursery, movement joints, cladding joints and gutters on larger buildings need the same care as a house’s. In the older streets around Parish Church of St Mary, an extension built onto an older house moves differently, and the joint between them takes the strain.
Speen is about 1 mile north-west of Newbury, in West Berkshire. Whether you are in the middle of Speen or further out, we cover external mastic for every kind of property. 155 places in West Berkshire are on our list, large and small. For nearby work, see our Reading page (16 miles or so).
Jobs for external mastic in RG14 and RG20 is quoted and booked the same way as anywhere else. That includes homes and businesses on Bath Road, Pound Lane and Speen Lane. If you are just outside Speen, we cover Bagnor (1 mile north), Speenhamland (1 mile east), Donnington (1 mile north-east), Stockcross (1 mile north-west) and Shaw (1 mile east). We also work in nearby towns such as Thatcham (4 miles east), Burghfield Common (12 miles east), Hungerford (7 miles west), Calcot (13 miles east), Lambourn (11 miles north-west) and Burghfield Hill (13 miles east).
What’s near Speen
We work in homes and buildings around Victoria Park, St Bartholomew's School and The Starting Gate pub. The nearest railway station is Newbury station, about 1.2 miles south-east. Well-known places in the area include British Balloon Museum & Library Ltd (1.1 miles east) and Donnington Castle (1.1 miles north). The countryside around Speen includes Rack Marsh.