Isle of Wight · England
Atherfield Green External Mastic
Sealing brickwork movement joints, render, cladding and façade joints for homes and businesses in Atherfield Green and across the Isle of Wight. ARBOMaster approved applicators, fully insured, with a 12-month guarantee.
- Gaps where render, brick and frames meet
- Failed sealant between panels on a façade
- Rigid filler in a joint that should flex
External mastic in Atherfield Green
A movement joint is a deliberate break that lets a wall expand and contract. Its sealant has to flex with the building, season after season, and when it fails, the wall takes the strain and water finds a way in. If you’re dealing with weathered mastic that no longer stretches and sealant pulling away from one side of the joint, we can help, whatever the surface.
Older homes in small places like Atherfield Green may be stone, brick or timber-framed, often with later extensions. Where one material meets another is where water normally gets in.
Big or small, it’s backed by our one-year guarantee.
- Place
- Atherfield Green (PO38)
- Wider area
- Isle of Wight
- Guarantee
- One year on every job
- Quotes
- A clear price before any work starts
- Telephone
- 0345 464 0079
- Page updated
- 26 October 2026
Questions from Atherfield Green
Does the coastal weather in Atherfield Green affect outside sealant?
Near the sea, outside joints face more wind, rain and salt than they would inland, so preparation and the right sealant matter all the more. It’s worth checking the walls that face the sea first.
Do you cover smaller places like Atherfield Green?
Yes, smaller places are covered as well as towns. Our work covers London and the South East. Just mention lanes, gates or anything else about the route when you book.
Do you guarantee your work?
Yes, for a year. If anything isn’t right with the work within the year, let us know and we will sort it.
Can landlords and businesses book you?
Yes. We work for householders, landlords, letting agents, businesses and hotels in Atherfield Green.
Do I need to be at home?
Access is agreed with you when the job is booked. For inside work, that normally means someone being in.
How long does the job take?
A typical job takes anything from a few hours to several days, depending on the building. We will confirm how long when we quote.
Do the sealants smell?
That depends on the sealant. Some products have a noticeable smell, others very little, and any smell fades as they cure.
Do you work at height?
It depends on the building. Tell us the height, the number of joints and what’s below them.
Do you need external mastic in Atherfield Green?
Sometimes a movement joint was filled with mortar or a rigid filler. With the joint locked solid, the movement turns into cracks elsewhere in the wall.
Most people get in touch when they notice something like this:
- Moss and dirt in joints with no sealant left
- Damp patches traced to an open external joint
- Sealant that has lost its bond to the brick or render
- Hard, crazed mastic that has stopped moving
Historic houses such as Wolverton Manor, about 2 miles north-west, show how far back building around Atherfield Green goes.
Comparing quotes
- How hidden problems are handled
- How long to leave it before use
- Is the old sealant removed completely?
- Is VAT in the price?
Atherfield Green buildings and the weather
Atherfield Green is close to the coast, where wind-driven rain is a fact of life and, nearer the shore, so is salt air. Both are hard on movement joints and outside wall joints, which can dry out and crack sooner where a building faces the weather. London and the South East are among the drier parts of the UK, yet outdoor joints still have to be sealed dry, so jobs are booked with the weather in mind.
In and around Atherfield Green, as anywhere, good external mastic starts with a clean, dry, properly prepared joint.
Atherfield Green is about 6 miles south of Newport, in the Isle of Wight. Homes, rented property, offices and hotels in Atherfield Green can book us for external mastic. The work is guaranteed for a year. Atherfield Green is one of 125 places in the Isle of Wight where we work for external mastic. There’s also a page for Portsmouth, roughly 18 miles from Atherfield Green.
All of PO38 is within our area for external mastic. Other places close to Atherfield Green include Little Atherfield (1 mile north-west), Pyle (1 mile south-east), Chale Green (1 mile east), Shorwell (2 miles north) and Thorncross (2 miles north-west). Larger places within reach include Newport (6 miles north), Ryde (11 miles north-east), Cowes (10 miles north), Sandown (8 miles east), Shanklin (7 miles east) and Ventnor (6 miles east). If you are somewhere remote, a little more planning is needed, so mention it when you ask for a quote.
Landmarks near Atherfield Green
Well-known places in the area include The Dinosaur Farm Museum (1.8 miles north-west) and Whitecroft Hospital (4.5 miles north-east). Not far away are Brighstone Down.
How the visit works
When we arrive, we look over the joints with you first. We protect the surfaces around the joints before any work begins. Most jobs take a few hours to a few days, depending on the length of joint and the access. Somewhere like Atherfield Green needs a little journey planning: 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.
- We start by checking each joint, agreeing the ones to redo and how we will reach them.
- We cut out the failed sealant and rake out any dirt or growth.
- Both sides are cleaned back to sound material and primed if needed.
- We push in closed-cell backing rod so the sealant is the right depth and bonds to the sides only.
- A flexible exterior sealant is applied and tooled in a colour to suit the wall.
Before we arrive
- On commercial sites, let us know about site rules
- Mention any tricky access
- Plan for the work area to be out of bounds to pets and children
Getting a quote
We do not publish a 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 send us an email.
Advice
Also near Atherfield Green
What else we do in Atherfield Green
Why deal with it now?
It often makes sense to reseal all the failing joints on an elevation together. They’ve weathered the same way, and access only has to be arranged once. Where a wall is exposed, as many are in small places like Atherfield Green, wind-driven rain gets into any failed joint, and damp in older walls is slow to dry out.
We don’t show prices on the website, because the cost depends so much on the job itself. For a quick quote, please phone 0345 464 0079 or drop us an email and we will talk you through it.
What you get with us
- Experience in homes, commercial sites and hotels
- Colour picked to suit the job
- 4.9 on Google from 180+ five-star reviews
- Old sealant always removed completely
Read what affects the cost or our reviews.
When something else is needed
New sealant can’t fix everything, and we will tell you before any work starts. Sealant will not put right:
- Cracks in the bricks or render themselves, away from the joints
- Loose or hollow render, which needs re-rendering
- Rising or penetrating damp from elsewhere in the wall
If you are not sure, just phone 0345 464 0079 or send us an email and we will give you a straight answer before booking.
What we seal
- Brickwork movement joints
- Render & cladding joints
- Concrete & block
- Joints between brick and frames
- Copings & trims
- Façade panels
Keeping the joints in good condition
Aftercare is simple, and it makes a real difference:
- Fix overflowing gutters above sealed joints
- Look over the joints every year, ideally after winter
- Never let anyone fill a movement joint with mortar
- Do not let climbing plants root in the sealant
Don’t let soil, plants or ivy build up against the new joints. Damp material against the sealant shortens its life.
Leave a failed movement joint and water keeps getting into the wall. That can lead to damp patches, staining and frost damage.
What the job involves on each surface
Copings and trims
Coping joints that leak let water straight down into the wall. Resealing them is a small job that protects a lot.
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.
DIY sealant or a professional job?
Sealing over old silicone is the commonest DIY error. Silicone does not stick to old silicone, so it lifts and traps water and mould underneath. Everything old must be removed first.
If you’ve already had a go yourself, that’s fine. We cut it out and start again, so tell us about it when you ask for a quote.