West Berkshire · England
Brightwalton Green External Mastic
Problem with your movement joints in Brightwalton Green? We cut out the old, prepare the joints and apply the right sealant, with a 12-month guarantee.
- Leaking joints around cladding and façade panels
- Gaps where render, brick and frames meet
- Sealant pulling away from one side of the joint
Brightwalton Green: your questions answered
Is Brightwalton Green within the area you cover?
Yes, Brightwalton Green is covered. Our work covers London and the South East, and smaller places are part of that. The journey is planned ahead, so it helps to know about access.
Do you cover Brightwalton Green for external mastic?
Yes, Brightwalton Green is within the area we cover. We work across London and the South East. Just phone 0345 464 0079 or email us with a few details of the job.
What is backing rod for?
The foam is closed-cell backing rod. It keeps the sealant at the right depth and bonded to the sides only, which would stop it stretching.
Do you have insurance?
Yes. We’re fully insured.
Will it make a mess?
Very little: the area around the joints is protected first, and we tidy up before we go.
Should I point up the gap in my brickwork?
No. A mortar-filled joint cannot move, so the movement cracks the wall elsewhere. It needs a flexible sealant over backing rod.
When is the sealant fully cured?
Cure times vary by product and the temperature. We tell you how long to leave it before we go.
What colours does the sealant come in?
The sealant colour is picked to suit the wall so the joint blends in. Exterior sealants come in a good range of colours.
About our external mastic in Brightwalton Green
External mastic is a job where short cuts show quickly. Overfilled joints, missing backing rod and sealant laid over old sealant rarely last long. We strip the joint back and start again. We work on façade panels, brickwork movement joints and concrete & block, and common reasons people get in touch are panel joints letting water in and moss and dirt in joints with no sealant left.
Outside joints can only be sealed when they’re dry, so work in Brightwalton Green is booked around the forecast. Tell us about access to all sides of the building, including outbuildings and garages.
All of our work is guaranteed for twelve months.
- Where
- Brightwalton Green (RG20)
- Region
- West Berkshire
- Cover
- One year on every job
- Quotes
- A clear quote up front
- Telephone
- 0345 464 0079
- Page updated
- 26 October 2026
Landlords, agents and businesses in Brightwalton Green
If you manage several properties in or around Brightwalton Green, several properties can go on one quote. Send us the addresses and the work at each, and pictures by email help.
We also work for property managers and facilities teams. We can quote a run of properties together.
How the job changes by surface
Copings and trims
Joints in copings, parapets and trims are exposed to the worst of the weather. Each is resealed with a weatherproof, flexible sealant.
Brickwork movement joints
Brick movement joints are often mistaken for a missing mortar line. Where one has been mortared, we cut it out and reseal it with sealant.
Also near Brightwalton Green
Other services in Brightwalton Green
Aftercare tips
No joint lasts for ever, but care makes a real difference. Our tips:
- Get split or bare joints resealed while the damage is small
- Leave the joints unpainted unless we have said otherwise
- Don’t let climbing plants root in the sealant
- Look over the joints every year, ideally after winter
Look over the joints once a year, ideally after winter. Splits, gaps at the edges or plants in the joint are early warning signs.
Once a joint cannot move, the wall finds another way, often as cracks near the joint. Catch it early and you reduce the risk.
What happens on the day
The work is kept neat and contained to the joints we are treating, so you can get on with your day. Expect the work to take a few hours to a few days, depending on the length of joint and the access, and we explain the cure time before we leave. For a village or hamlet like Brightwalton Green, the journey is planned in advance: tell us about narrow lanes, gates, long drives and where we can park. Everything for the job comes with us, so a second trip is avoided where possible.
- Each joint is checked and the colour of the new sealant agreed.
- We take out the old sealant until the faces are sound.
- Closed-cell backing rod is pushed in so the sealant bonds to two sides only.
- Primer is applied wherever the sealant needs it.
- A low-modulus exterior sealant is gunned in and tooled to a neat finish.
Getting ready for the visit
- Tell us if parking is tricky
- Mention any leaks or damp you’ve noticed
- Clear items away from the joints we are working on
Get a quote
There’s no standard price list, because every job is different. Instead, we give you a clear quote for your job. To arrange one, phone 0345 464 0079 or drop us an email.
Related advice
What affects the quote in Brightwalton Green
The price is agreed before any work begins. It takes into account:
- How much old sealant there is and how hard it is to remove
- Whether there’s mould to deal with
- How easy the joints are to reach
- How many rooms, windows or areas are involved
The cost reflects the work involved, not a rough estimate. That is why we ask about the job first and send you a clear quote before any work starts.
Asking for a quote
Before you ask for a quote, have a think about:
- Pictures of the joints, sent by email
- Roughly how big the job is
- Where the job is, and your postcode
- What’s wrong with the joints now
Getting a quote is simple: tell us what needs doing and where. A few photos by email make the job easier to understand, and we’ll come back to you with a quote.
What external mastic looks like in Brightwalton Green
Compared with the north and west, the South East gets less rain, yet outdoor joints still have to be sealed dry, so jobs are booked with the weather in mind.
For an older house near a landmark such as Church of All Saints, old and new materials meet at the roofline and walls, which is where sealant earns its keep.
Brightwalton Green is about 6 miles south of Wantage, in West Berkshire. Across the RG20 area, we cover external mastic for homes and businesses. Our area takes in 155 places across West Berkshire, from the larger towns to small villages. Our Reading page covers work nearby.
Every address in RG20 is within our area for external mastic, from the main roads to the quietest streets. Whether your property is on Holt Lane and Honesty Bottom or anywhere close by, we can help. Neighbouring places we cover for external mastic include Brightwalton (1 mile north), Catmore (2 miles north-east), Farnborough (2 miles north), Stanmore (3 miles east) and West Ilsley (4 miles north-east). We also work in nearby towns such as Newbury (8 miles south), Thatcham (9 miles south-east), Speenhamland (7 miles south), Hungerford (8 miles south-west), Calcot (15 miles east) and Lambourn (6 miles west).
Landmarks near Brightwalton Green
The countryside around Brightwalton Green includes Sole Common Pond.
Can I do it myself?
If you do try it yourself, take your time over the preparation: remove every trace of old sealant, clean and dry the joint, and follow the product’s cure time. If it fails, we can still redo it.
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.
Common problems we fix in Brightwalton Green
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. The sealant in the movement joints takes that strain.
These are the problems we are asked about most:
- Moss and dirt in joints with no sealant left
- Movement joints with cracked, split or missing sealant
- Leaking joints around cladding and façade panels
- Damp patches traced to an open external joint
Managing a site like Brightwalton C.E. Aided Primary School? Then movement joints, cladding joints and gutters on larger buildings need the same care as a house’s.
Before booking anyone
- Whether they seal over old material or remove it
- Who turns up on the day
- How the colour is chosen
- What guarantee comes with the work