Hampshire · England
External & façade joints in Stone, Hampshire
Sealing brickwork movement joints, render, cladding and façade joints for Stone, backed by a one-year guarantee. Call for a quick quote.
- Plants rooting in failed movement joints
- Rain getting behind render or cladding at a joint
- Hard, crazed mastic that has stopped moving
How we handle external mastic in Stone
External mastic is a job where short cuts show quickly. Overfilled joints, missing backing rod and sealant laid over old sealant all tend to fail early. We strip the joint back and start again. Typical jobs include old sealant gone brittle and cracked and gaps where render, brick and frames meet, on render & cladding joints, façade panels and brickwork movement joints.
Somewhere as small as Stone, homes and farm buildings often face open ground, so walls and rooflines take the full force of wind and rain. Joints on those walls need a sealant that moves with the building and stays in place.
All of our work is guaranteed for twelve months, in Stone and everywhere else we cover.
- Place
- Stone (SO45)
- Region
- Hampshire
- Guarantee
- 12 months on all our work
- Price
- A clear quote up front
- Call
- 0345 464 0079
- Updated
- 26 October 2026
How the job changes by surface
Render joints
Render is weaker at the surface than brick, so a low-modulus sealant is kinder to the joint edges. We prime where the product needs it.
Joints between dissimilar materials
Brick against render, concrete against metal, stone against timber: every change of material is a joint. We seal the joint with a flexible exterior sealant.
What external mastic looks like in Stone
Stone 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. Both are hard on movement joints and outside wall joints, which can dry out and crack sooner where a building faces the weather. Historic houses like Beaulieu Palace House (about 4.4 miles north-west) are a reminder that the area around Stone has older buildings as well as new. In older buildings, older walls and rooflines need a sealant that moves with them and suits the material.
If you live in an older home near St Francis, an extension built onto an older house moves differently, and the joint between them takes the strain.
Stone is about 3 miles north-west of Cowes, in Hampshire. Stone gets the same service as everywhere we cover: the old material taken out, joints prepared properly and a 12-month guarantee. Stone is one of 683 places in Hampshire we cover. For nearby work, see our Southampton page.
All of SO45 is within our area for external mastic, from the main roads to the quietest streets. Neighbouring places we cover for external mastic include Gurnard (3 miles south-east), Cowes (3 miles south-east), Rew Street (4 miles south), Northwood (4 miles south-east) and Great Thorness (4 miles south). We also work in nearby towns such as Gosport (9 miles east), Eastleigh (12 miles north), Fareham (8 miles north-east), Totton (11 miles north-west), Chandler's Ford (13 miles north) and Hedge End (9 miles north).
Near you in Stone
A little further out are Calshot Castle (2.8 miles north-east) and Sir Max Aitken Museum (3.3 miles south-east). The countryside around Stone includes Mill Hill.
Aftercare tips
Simple care keeps the joints in good condition. Our advice:
- Keep movement joints as flexible joints, not mortar
- Wash walls gently around the sealant
- Check external joints each spring
- Keep soil, plants and ivy away from the joints
Do not paint over the new sealant unless we have said the product is paintable. Paint can crack on a flexible joint, and paint can crack as the joint moves.
A joint that has stopped moving pushes the movement elsewhere, often as cracks near the joint. Resealing it early helps prevent that.
Honest limits
Before you book, it’s worth knowing the limits:
- Cracked brickwork or render that needs a builder or plasterer
- Structural movement, which needs a surveyor or engineer
- Loose or hollow render, which needs re-rendering
Not sure which it is? You can call 0345 464 0079 or send us an email and we’ll tell you honestly before booking.
Joints and surfaces we work on
- Copings & trims
- Façade panels
- Brickwork movement joints
- Concrete & block
- Render & cladding joints
- Joints between brick and frames
Work for landlords, hotels and businesses
In hotels, rooms out of use cost money, so the work can be planned room by room around your bookings where we can. We have worked in hotels as well as homes and businesses.
Businesses can book us for washrooms, kitchens, offices and more. For commercial premises, we can talk through working times when we quote.
Common questions in Stone
Is Stone in your area for external mastic?
Yes. Our work covers London and the South East, and Stone is part of that. You can ring 0345 464 0079 or send us an email and tell us what needs doing.
Do you cover smaller places like Stone?
Yes. Stone is within the area we cover, which takes in towns, villages and rural addresses. We work across London and the South East. Let us know about access, parking and anything unusual about getting there when you book.
Why is there a gap in my brick wall?
Most straight vertical gaps in brickwork are movement joints. It lets the bricks expand without cracking, and it should be sealed with a flexible sealant.
Can you reach joints on upper floors?
It depends on the height and the site. Low-level joints are straightforward; for higher ones, send details and we’ll confirm the access.
What information do you need?
Where the job is, what the problem is and roughly how big it is. If you can, email a few photos.
Can you match the colour of my brickwork?
The sealant colour is picked to suit the wall. Exterior sealants come in a good range of colours.
I rent my home. Can I book you?
We can work for tenants, landlords or agents. Get your landlord’s agreement first.
How do I get a quote for external mastic in Stone?
We do not publish prices, because the cost depends on the job: its size, the old material, access and the product needed. We agree the price before any work begins.
The process
On the day, there’s very little for you to do. Show us the job and we’ll take it from there. The work itself takes a few hours to a few days, depending on the length of joint and the access from start to finish. For a village or hamlet like Stone, the journey is planned in advance: let us know about lanes, gates and parking. We bring what the job needs, so it can be finished in one trip 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.
- We clean both faces of the joint and prime them where the product calls for it.
- 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.
Getting ready for the visit
- Let us know if you’ve seen damp or leaks
- Tell us about access, such as stairs, a lift or high-level joints
- Clear items away from the joints we are working on
Getting a quote
A good description makes for an accurate quote. Let us know the location, the problem and roughly how many joints, and add photos by email if you can.
Related advice
Nearby places to Stone
What else we do in Stone
Common problems we fix in Stone
The wrong product in a moving joint is a classic cause. A stiff, general-purpose sealant cannot cope with a joint that moves a lot, so it pulls away from the edges.
Common reasons people contact us include:
- Gaps where render, brick and frames meet
- Water getting into walls through failed joints
- Sealant pulling away from one side of the joint
- Panel joints letting water in
In and around Stone, as anywhere, good external mastic starts with a clean, dry, properly prepared joint.
What your quote should include
- What insurance they hold
- What product goes in the joint
- How the joint is cleaned and prepared
- The length of the guarantee
Should I try it myself first?
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.
Some sealant jobs are within reach of a careful DIYer, like a short, easy-to-reach joint indoors. The common mistakes are sealing over old sealant, sealing a damp joint and using far too much.