West Berkshire · England
External Mastic in Speenhamland
We cover Speenhamland for sealing brickwork movement joints, render, cladding and façade joints. Old material cut out, joints cleaned and sealed neatly.
- Old sealant gone brittle and cracked
- Sealant that has lost its bond to the brick or render
- Joints with sealant missing in places
External mastic in Speenhamland
We are ARBOMaster approved applicators, and each external joint gets a sealant suited to it. Porous or awkward surfaces are primed where the sealant needs it. We work on concrete & block, brickwork movement joints and render & cladding joints, and common reasons people get in touch are movement joints filled with mortar instead of sealant and failed sealant between panels on a façade.
In a smaller place like Speenhamland, some homes face open ground, so exposed walls and rooflines take more wind-driven rain. That is where gutter joints and wall joints tend to fail first.
The work is guaranteed for twelve months. If something is not right with it in that time, tell us and we will put it right.
- Place
- Speenhamland (RG14, RG20)
- Wider area
- West Berkshire
- Guarantee
- One year on every job
- Quote
- Quoted before any work starts
- Phone
- 0345 464 0079
- Last updated
- 26 October 2026
The process
Once we are on site, we compare the joints with what we discussed. If we find something unexpected, we talk it through with you first. After that, the work takes a few hours to a few days, depending on the length of joint and the access. In a smaller place like Speenhamland, parking is seldom the issue; lanes, gates and long drives are worth mentioning. For outside work, side access and the height of the joints help us plan.
- First we look over the joints with you, agree which to renew and talk through access.
- The old mastic and anything lodged in the joint is removed.
- Both sides are cleaned back to sound material and primed if needed.
- Closed-cell backing rod is fitted to set the depth and stop three-sided bonding.
- We gun in a flexible exterior sealant in a colour that suits the wall and tool it neatly.
Getting ready for the visit
- Where the joints are inside, avoid wetting them before we arrive
- Tell us about any water getting in
- For business premises, tell us about site rules or sign-in
Ask for a quote
It all starts with a short chat. Tell us what’s wrong, where it is and how much there is. When it suits you, ring 0345 464 0079 or drop us an email.
Read more
Nearby places to Speenhamland
Also in Speenhamland
Speenhamland questions
Will you come out to Speenhamland?
Yes, Speenhamland is covered. We work across London and the South East, from towns to the smallest places. The journey is planned ahead, so it helps to know about access.
Is Speenhamland in your area for external mastic?
Yes, Speenhamland is within the area we cover. Our work covers London and the South East. You can phone 0345 464 0079 or drop us an email and tell us what needs doing.
Do you hold any approvals?
Yes. We are ARBOMaster approved, the scheme for applicators of Arbo sealants.
Is it messy?
No. The area is protected while we work and cleaned up afterwards.
Can you do several jobs on one visit?
Of course. Combining jobs makes good use of the visit.
Can a movement joint be filled with mortar?
No. Rigid materials cannot move with the wall, so the joint stops doing its job. Where a joint has been mortared, it can often be raked out and sealed properly.
How long should I leave it?
Many sealants skin over quickly but take longer to cure fully. We will give you the cure time for the product we used before we leave.
Can you seal joints between render and window frames?
Yes. Materials like render, brick, metal and uPVC all move differently, so the joint between them must be flexible. The sealant is matched to both sides.
Work for landlords, hotels and businesses
If you manage several properties in or around Speenhamland, several properties can go on one quote. Send us the addresses and the work at each, and photos by email help.
Letting agents often deal with us directly. Send the address, what’s needed and the access arrangements and we’ll give you a quote.
What affects the cost of external mastic
The price is agreed before any work begins. It’s based on:
- The size of the job
- The number of rooms or windows
- Working hours on commercial sites
- Access and height
Combining jobs into one visit is usually more efficient than separate visits, so tell us about everything that needs sealing. We will give you a clear quote for the lot.
Asking for a quote
Photos by email are helpful but not essential. Try to tell us:
- The address or postcode of the job
- If it’s domestic, commercial or a hotel
- Access, such as stairs, a lift or height
- How many joints, rooms or windows are involved
Every job is quoted individually, so the first step is telling us about yours. Simply phone 0345 464 0079 or email us and describe the job.
DIY versus a professional finish
Overfilling a joint is a classic DIY mistake. A heavy bead looks messy and copes badly with movement, and getting the depth right matters as much as the look.
Some sealant jobs are within reach of a careful DIYer, such as a straightforward joint indoors. Where it goes wrong is sealing over the old bead, working on a wet joint or overloading the gap.
Speenhamland buildings and the weather
Historic houses like Shaw House (about 0.5 miles north-east) are a reminder that the area around Speenhamland 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, yet outdoor joints still have to be sealed dry, so jobs are booked with the weather in mind.
For landlords with property near Newbury station, failed wall and movement joints let damp in, so they’re worth checking between tenancies. Schools such as Speenhamland School are buildings too, and movement joints, cladding joints and gutters on larger buildings need the same care as a house’s.
Speenhamland is about 1 mile north of Newbury, in West Berkshire. Wherever you are in the RG14 postcode area, we can carry out external mastic at your property. Our West Berkshire coverage runs to 155 places, Speenhamland among them. We also work in Reading, about 15 miles from Speenhamland.
Work in RG14 and RG20 is quoted and booked the same way as anywhere else. That includes homes and businesses on Park Lane, Shaw Road and Bear Lane. Speenhamland is on the A4, so it’s easy for us to get to with everything needed for external mastic. Nearby, we also carry out external mastic in Shaw (1 mile east), Donnington (1 mile north), Speen (1 mile west), Bagnor (1 mile west) and Stockcross (2 miles west). Within a short drive, we also cover Thatcham (3 miles east), Burghfield Common (11 miles east), Hungerford (8 miles west), Spencers Wood (15 miles east), Calcot (12 miles east) and Lambourn (11 miles north-west). Speenhamland is among the bigger towns we cover in West Berkshire.
Near you in Speenhamland
Locally, jobs take us to homes and businesses close to The High Horse pub, Trinity School and Trinity School and the streets around them. The closest station to Speenhamland is Newbury station, roughly 0.7 miles south. Well-known places in the area include Donnington Castle (1 mile north-west) and British Balloon Museum & Library Ltd (within half a mile south). The countryside around Speenhamland includes Rack Marsh.
Leave it or put it right?
Mortar or ordinary filler might look like a quick way to close an open joint, but it locks the joint solid. The wall then cracks somewhere else. The correct repair is a flexible sealant with the right backing. In a smaller place like Speenhamland, wherever a wall is exposed, a failed outside joint is a real source of damp. Inside, a split seal lets water into floors and panels just as it would anywhere.
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.
What you get with us
- Old sealant always removed completely
- 20+ years of sealant experience
- Full insurance on every job
- Every job guaranteed for a year
Read our cost guide and what customers say.
Honest limits
To be straight with you, there are a few things sealant won’t fix:
- Structural movement, which needs a surveyor or engineer
- Damp from another source, such as a leaking gutter or a bridged damp-proof course
- Walls that need new movement joints cut into them
If in doubt, ring 0345 464 0079 or send us an email and we will say what we think before booking.
What we seal
- Render & cladding joints
- Concrete & block
- Façade panels
- Copings & trims
- Joints between brick and frames
- Brickwork movement joints
Signs you need external mastic in Speenhamland
Sometimes a movement joint was filled with mortar or a rigid filler, often by someone who didn’t know what it was for. With the joint locked solid, the movement turns into cracks elsewhere in the wall.
People usually contact us after spotting one of these:
- Weathered mastic that no longer stretches
- Leaking joints around cladding and façade panels
- Gaps where render, brick and frames meet
- Moss and dirt in joints with no sealant left
In the older streets around St Nicolas Church, an extension built onto an older house moves differently, and the joint between them takes the strain.
Comparing quotes
- How the joint is cleaned and prepared
- What guarantee comes with the work
- What the quote includes, VAT included or not
- Whether the sealant suits the joint