Isle of Wight · England
External & façade joints in Thorley, Isle of Wight
External mastic across Thorley and nearby, with old sealant always removed completely and a 12-month guarantee.
- Water getting into walls through failed joints
- Failed seals between different materials
- Old sealant gone brittle and cracked
Your questions about external mastic in Thorley
I let a flat near Lymington Pier station. Can you help?
Yes, we work for landlords and letting agents. You can call 0345 464 0079 or drop us an email with the address and a few details, and we’ll give you a fixed price before work begins.
Does living near the coast affect external mastic in Thorley?
Near the sea, outside joints face more wind, rain and salt than they would inland, so the choice of sealant and the preparation matter even more. Walls facing the sea are normally the first to need attention.
Is there any odour?
There can be a smell while the sealant cures. Opening a window helps.
What should I tell you?
Only a few details: where it is, what you’ve noticed and how we reach it. After that, simply phone 0345 464 0079 or drop us an email.
Is it OK to fill a movement joint with cement?
No. Cement or mortar can’t stretch, so the joint stops doing its job. Where a joint has been mortared, it can often be raked out and sealed properly.
Is the work guaranteed?
Yes. All our work carries our 12-month guarantee.
Do you work at height?
That depends on how high the joints are and the ground below. Ground-floor joints are simple; for higher ones, send details and we will confirm the access.
How long before the joint can be used?
Most sealants are touch-dry well before they’re fully cured. We’ll tell you how long to leave the joint.
How we handle external mastic in Thorley
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, so once it splits or hardens, the joint stops working and water gets in. Common call-outs are for sealant pulling away from one side of the joint and damp patches traced to an open external joint, on joints between brick and frames, render & cladding joints and copings & trims.
Outside joints can only be sealed when they’re dry, so work in Thorley is booked around the forecast. Let us know about access to every wall, plus any garages or outbuildings.
We guarantee the work for a year. If there’s a problem with our work within the year, let us know and we will sort it.
- Place
- Thorley (PO41)
- Wider area
- Isle of Wight
- Guarantee
- A year, on every job
- Quote
- A clear quote up front
- Telephone
- 0345 464 0079
- Last updated
- 26 October 2026
Why it’s worth doing now in Thorley
A failed movement joint lets water into the wall, behind render and cladding. Dealing with it early keeps the repair to the joint, rather than the wall around it. Around Thorley, older homes often have timber in their floors and frames, where water from a failed joint can cause rot if it’s left.
Combining jobs into one visit is usually more efficient than separate visits, so it’s worth mentioning everything you’d like done. You’ll get one clear quote for the whole job.
Why us?
- Colour picked to suit the job
- We agree the colour with you first
- Approved under the ARBOMaster scheme
- 12-month guarantee on every job
Take a look at what affects the cost or customer reviews.
What external mastic looks like in Thorley
Thorley is within about 2 miles of 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. Compared with the north and west, the South East gets less rain, but outside sealant still needs a dry, clean surface, so outdoor work is planned around the forecast.
For landlords with property near Lymington Pier station, split movement joints are easy to miss on a rental until damp shows inside. In the older streets around St. Swithin's Church, older walls, gutters and the joints where extensions meet them need a flexible sealant.
Thorley is about 5 miles south-east of Lymington, in the Isle of Wight. Jobs in Thorley get the same care as everywhere else we work: old sealant removed completely, careful preparation and a one-year guarantee. Thorley is one of 125 places in the Isle of Wight we cover for external mastic. Our Southampton page covers work nearby (16 miles or so).
Every address in PO41 is within our area for external mastic, from the main roads to the quietest streets. Neighbouring places we cover for external mastic include Thorley Street (1 mile east), Wellow (1 mile south-east), Ningwood (2 miles east), Shalcombe (2 miles south-east) and Newbridge (2 miles east). Within a short drive, we also cover Newport (8 miles east), Ryde (14 miles east), Cowes (8 miles north-east), Sandown (14 miles east), Shanklin (14 miles east) and Ventnor (13 miles south-east). Island and remote addresses take a little more planning, so please mention your location when you call 0345 464 0079 or drop us an email.
Around Thorley
The nearest railway station is Lymington Pier station, about 4.9 miles north-west. Other landmarks nearby include Yarmouth Castle (1.4 miles north-west) and Ferguson Family Museum (1.7 miles west). Not far away are Lymington and Keyhaven Marshes Nature Reserve and Compton Down.
How the visit works
Every visit runs the same way: we check the joints, mask and protect the surrounding surfaces, carry out the job and clear up. It normally takes anything from a few hours to several days, depending on the building. Somewhere as small as Thorley, access is often the only tricky part. If the job is outside, mention outbuildings, exposed walls and how to reach them.
- We inspect the joints and agree which need resealing and how they’ll be reached.
- We cut out the failed sealant and rake out any dirt or growth.
- The joint faces are cleaned and primed where the sealant needs it.
- We push in closed-cell backing rod so the sealant is the right depth and bonds to the sides only.
- We gun in a flexible exterior sealant in a colour that suits the wall and tool it neatly.
Getting ready for the visit
- Let us know if you’ve seen damp or leaks
- Tell us if parking is tricky
- Where the joints are inside, avoid wetting them before we arrive
How to get a quote
To get a quote, phone 0345 464 0079 or email us with the location and a short description of the problem. We’ll send you a clear quote before any work starts.
Advice
Surface by surface
Brickwork movement joints
Brick moves with heat and moisture, and grows a little over time. The movement joint takes that up, so its sealant has to stay flexible.
Render joints
Render is weaker at the surface than brick, so a sealant that stretches easily protects the edges. Priming is done where the sealant calls for it.
Other services in Thorley
Honest limits
Sealant is not the answer to every problem, and we’d rather say so up front. Sealant won’t put right:
- Rising or penetrating damp from elsewhere in the wall
- Cracked brickwork or render that needs a builder or plasterer
- Loose or hollow render, which needs re-rendering
If you are not sure, just call 0345 464 0079 or email us and we’ll give you a straight answer before you book.
What we seal
- Render & cladding joints
- Copings & trims
- Concrete & block
- Façade panels
- Joints between brick and frames
- Brickwork movement joints
How we quote for external mastic
We don’t publish a price list, because jobs vary so much. What we look at:
- Which sealant suits the joint
- The size of the job
- Whether the work is at height
- How many areas need sealing
A few things move the cost up or down: the old material and how easily it comes out, any mould to treat, and whether the work is at height. We take all of that into account in your quote.
Asking for a quote
What to tell us when you ask for a quote:
- Where the job is, and your postcode
- The type of property
- The problem you’ve noticed
- If someone has resealed it before
If you’re in Thorley and need external mastic, phone 0345 464 0079 or send us an email. Tell us what the problem is and where, and we’ll agree the price before any work begins.
For landlords and businesses
Businesses can book us for washrooms, kitchens, offices and more. For commercial premises, we can talk through working times when we quote.
Whether it’s one flat or a portfolio, you get the same standard of work: old sealant fully removed, joints prepared properly and a 12-month guarantee.
DIY versus a professional finish
The biggest DIY mistake is sealing over old sealant. New silicone will not bond to old, so it lifts and traps water and mould underneath. Everything old must be removed first.
Not every job suits DIY: high-level joints, fire-rated gaps, external movement joints and big jobs call for the right materials, safe access and experience.