Isle of Wight · England
Bembridge External Mastic
External mastic in Bembridge from a team with over 20 years’ experience. 180+ five-star Google reviews and a 4.9 rating.
- Water getting into walls through failed joints
- Movement joints with cracked, split or missing sealant
- Joints where the bead has come unstuck
How we handle external mastic in Bembridge
A movement joint is only as good as its depth. Closed-cell backing rod sets the depth and stops the sealant sticking to the back, leaving it bonded to two faces so it can move with the wall. We work on joints between brick and frames, render & cladding joints and concrete & block, and common reasons people get in touch are joints with sealant missing in places and movement joints filled with mortar instead of sealant.
Houses in smaller places like Bembridge can stand more in the open than those in a built-up town, so exposed walls and rooflines take more wind-driven rain. That’s where gutter joints and wall joints tend to fail first.
Each job carries a 12-month guarantee, large or small.
- Place
- Bembridge (PO35)
- Region
- Isle of Wight
- Guarantee
- A year, on every job
- Quote
- A clear quote up front
- Telephone
- 0345 464 0079
- Updated
- 26 October 2026
What happens if it’s left?
Pointing a movement joint with mortar might seem a neat fix, but it locks the joint solid. The movement then cracks the brickwork or render nearby. A flexible sealant over backing rod is what the joint needs. In a smaller place like Bembridge, wherever a wall is exposed, a failed outside joint is a real source of damp. Indoors, a failed seal lets water into floors and panels as it would anywhere.
What you pay reflects the work, not guesswork. That is why we ask a few questions first.
What you get with us
- Old sealant always removed completely
- Quality sealants from Arbo and Everbuild
- A 12-month guarantee on all work
- We agree the colour with you first
Read what affects the cost and customer reviews.
Places near Bembridge
Also in Bembridge
FAQs for Bembridge
Does the coastal weather in Bembridge affect outside sealant?
Coastal homes put outside sealant through more weather than inland ones, so the choice of sealant and the preparation matter even more. Walls facing the sea are normally the first to need attention.
Do you cover smaller places like Bembridge?
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.
Will the old sealant be removed?
Yes. Sealing over the old bead is the commonest cause of early failure, so we never do it.
Will you leave a mess?
No. The area is protected while we work and cleaned up afterwards.
Can tenants book the work?
Yes, though it’s best to check with your landlord first. Many landlords are glad to have it sorted.
Do you use backing rod?
Closed-cell backing rod sets the depth of the sealant and stops it sticking to the back of the joint. Then the sealant bonds to two faces and can move.
How long before the joint can be used?
That depends on the sealant used, so please follow the time we give you when we finish.
Can you reach joints on upper floors?
It depends on the building. Send us pictures and a rough idea of the height and we will confirm how they can be reached safely.
How the job changes by surface
Joints between dissimilar materials
Different materials may need different primers. We prepare both faces so the sealant bonds properly.
Brickwork movement joints
Vertical joints in long brick walls let the brickwork expand without cracking. We reseal them with a low-modulus sealant over backing rod in a colour to suit the brick.
Bembridge buildings and the weather
Bembridge is within about 1 mile of the coast, and homes near the sea take more wind-driven rain, with salt in the air closer to the shore. That’s hard on movement joints and outside wall joints, especially on the side facing the sea. Historic houses like Yaverland Manor (about 2.4 miles south-west) are a reminder that the area around Bembridge 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.
Schools such as Bembridge Church of England Primary School are buildings too, and movement joints, cladding joints and gutters on larger buildings need the same care as a house’s. If you live in an older home near Bembridge Methodist Church, the joints between older walls, newer extensions and the roofline need a sealant that can move.
Bembridge is about 4 miles south-east of Ryde, in the Isle of Wight. For external mastic in and around Bembridge, please call 0345 464 0079 or email us for a quick quote. We are based in Crawley and cover the Isle of Wight. Bembridge is one of 125 places in the Isle of Wight where we work. You can also see our page for Portsmouth, roughly 8 miles from Bembridge.
Every address in PO35 is covered for external mastic, from the main roads to the quietest streets. You will find streets such as High Street, Church Road and Station Road. Other places close to Bembridge include Foreland Fields (1 mile south-east), Hillway (1 mile south-west), St Helens (1 mile north-west), Gaskins (2 miles west) and Nettlestone (2 miles north-west). Within a short drive, we also cover Newport (9 miles west), Ryde (4 miles north-west), Cowes (11 miles north-west), Sandown (4 miles south-west), Shanklin (6 miles south-west) and Ventnor (8 miles south-west). Remote and island addresses need a little more planning, so tell us where you are when you ask for a quote.
What’s near Bembridge
Locally, jobs take us to homes and businesses close to Bembridge School and The Windmill Hotel and the streets around them. The closest station to Bembridge is Brading station, about 2.4 miles west of the centre. A little further out are Lilliput Museum of Antique Dolls And Toys (2.6 miles west) and Arthur Webster Memorial Hospital for Children (5.5 miles south-west). The countryside around Bembridge includes Bembridge Down and Brading Marshes RSPB reserve.
When it isn’t the sealant
A few problems are outside what sealant work can do:
- Damp that is not coming from the joint
- Structural movement, which needs a surveyor or engineer
- Loose or hollow render, which needs re-rendering
If you’re not sure, just ring 0345 464 0079 or drop us an email and we’ll give you a straight answer before you book.
Joints and surfaces we work on
- Joints between brick and frames
- Brickwork movement joints
- Concrete & block
- Copings & trims
- Façade panels
- Render & cladding joints
What happens on the day
There’s no need to move everything out before we come, only the area right around the joints. We protect the rest, and the work takes a few hours for a handful of joints, longer for a whole elevation for a typical job. In a smaller place like Bembridge, parking is seldom the issue; lanes, gates and long drives are worth mentioning. If the job is outside, tell us about side access and how high the joints are.
- We start by checking each joint, agreeing the ones to redo and how we will reach them.
- The old mastic and anything lodged in the joint is removed.
- The joint faces are cleaned and primed where the sealant needs it.
- 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.
How to prepare
- On commercial sites, let us know about site rules
- Mention any leaks or damp you’ve noticed
- Mention any tricky access
Getting a quote
If you are in Bembridge and need external mastic, phone 0345 464 0079 or drop us an email. A short description of the job and where it is helps us quote, and you will get a clear quote before work begins.
Read more
For landlords and businesses
Water getting past a failed joint can damage the building, which is a bigger problem in a rented property. Keeping joints in good order is simple maintenance.
We work for landlords and agents as well as householders. Resealing between tenancies is a simple way to keep a property in good order.
DIY versus a professional finish
Some jobs are best left to a professional: work at height, external movement joints, fire-rated sealant and large areas call for the right materials, safe access and experience.
Overfilling a joint is a classic DIY mistake. A thick, smeared bead looks untidy and does not move well, and the joint depth matters as much as the finish.
Signs you need external mastic in Bembridge
Joints sealed without backing rod, or far too deep, rarely last. Sealant bonded to three sides has nowhere to go and tears as soon as the joint widens.
If you can see any of these, it’s time to have the joints looked at:
- Cracked joints where brick meets render or frames
- Movement joints filled with mortar instead of sealant
- Moss and dirt in joints with no sealant left
- Brick movement joints where the sealant has split
Letting a property close to Brading station? Then outside joints that have cracked can let damp into a rental, so check them between lets.
Comparing quotes
- How the surfaces are prepared before sealing
- What the quote includes, VAT included or not
- Which sealant they’ll use, and why
- Which colour the sealant will be