Hampshire · England
External & façade joints in Stonehills, Hampshire
Specialist external mastic for Stonehills: the right sealant, proper preparation and a neat finish. Ask us for a quick quote.
- Damp patches traced to an open external joint
- Movement joints filled with mortar instead of sealant
- Movement joints with cracked, split or missing sealant
Keeping the joints in good condition
How long the joints last depends on use and care. We suggest:
- Walk round the building once a year and look at the joints
- Keep soil, plants and ivy away from the joints
- Have failed joints looked at early
- Avoid pressure-washing directly into sealant joints
Look over the joints once a year, ideally after winter. Watch for splits, edges coming away or growth in the joint.
A joint that has stopped moving pushes the movement elsewhere, often as cracks near the joint. Resealing it early helps prevent that.
How we handle external mastic in Stonehills
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 façade panels, copings & trims and joints between brick and frames, and common reasons people get in touch are sealant pulling away from one side of the joint and weathered mastic that no longer stretches.
Older homes in small places like Stonehills may be stone, brick or timber-framed, often with later extensions. Where one material meets another is where water normally gets in.
You get a 12-month guarantee, the same in Stonehills as everywhere else we work.
- Location
- Stonehills (SO45)
- Region
- Hampshire
- Cover
- One year on every job
- Quotes
- A clear price before we start
- Telephone
- 0345 464 0079
- Last updated
- 26 October 2026
What happens on the day
We keep the work tidy and contained to the area we’re working on, so you can carry on as normal. Expect the work to take anything from a few hours to several days, depending on the building. For a village or hamlet like Stonehills, the journey is planned in advance: tell us about narrow lanes, gates, long drives and where we can park. We bring what the job needs, so it can be finished in one trip where possible.
- First we look over the joints with you, agree which to renew and talk through access.
- 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.
- We gun in a flexible exterior sealant in a colour that suits the wall and tool it neatly.
Before we arrive
- Tell us about any water getting in
- Clear items away from the joints we are working on
- Let us know about parking restrictions
How to get a quote
To get a quote, phone 0345 464 0079 or send us an email with the location and a short description of the problem. You will have a clear quote before any work starts.
Advice
What affects the cost of external mastic
There’s no set price list. What we look at:
- The type of sealant required
- Any working-time requirements on site
- How much old sealant there is and how hard it is to remove
- How many rooms, windows or areas are involved
What it costs depends on the amount of work, how hard the old material is to remove and access to the work. You will have a clear quote before any work starts.
Helping us quote
To help us quote quickly, let us know:
- Any access issues, like height or stairs
- The address or postcode of the job
- Whether it’s a home or a business
- If someone has resealed it before
The more we know about the job, the more useful the quote. Tell us where the job is, what’s wrong and how much there is, and email photos if that’s easy.
What sealant work can’t fix
Sealant is not the answer to every problem, and we’d rather say so up front. It won’t solve:
- Loose or hollow render, which needs re-rendering
- Cracks in the bricks or render themselves, away from the joints
- Walls that need new movement joints cut into them
If in doubt, call 0345 464 0079 or email us and we’ll say what we think.
Where we work in Stonehills
- Façade panels
- Concrete & block
- Render & cladding joints
- Copings & trims
- Joints between brick and frames
- Brickwork movement joints
Outside joints around Stonehills
Stonehills is close to the coast, and homes near the sea take more wind-driven rain, with salt in the air closer to the shore. That is hard on movement joints and outside wall joints, especially on the side facing the sea. The South East is one of the drier parts of the UK, yet outdoor joints still have to be sealed dry, so jobs are booked with the weather in mind.
If you let a flat or house near Hamble station, failed wall and movement joints let damp in, so they’re worth checking between tenancies. Homes close to Church of All Saints include some older properties, and old and new materials meet at the roofline and walls, which is where sealant earns its keep.
Stonehills is about 4 miles south-east of Hythe, in Hampshire. Every kind of property in Stonehills can book us for external mastic, old or new, large or small. The work is guaranteed for a year. We cover 683 towns and villages across Hampshire, from the larger towns to small villages. Our Southampton page covers work nearby, about 7 miles away.
Jobs for external mastic in SO45 works the same way as everywhere else we cover. Whether your property is on Stonehills and Fawley Bypass or anywhere close by, we can help. If you’re just outside Stonehills, we cover Ashlett (1 mile north-east), Fawley (1 mile north-west), Sprat's Down (1 mile south), Calshot (1 mile south-east) and Blackfield (1 mile south-west). We also work in nearby towns such as Gosport (8 miles east), Eastleigh (10 miles north), Fareham (7 miles east), Totton (10 miles north-west), Chandler's Ford (11 miles north) and Hedge End (7 miles north).
Near you in Stonehills
Typical jobs here are in homes near Falcon Hotel and The New Forest Academy and the streets around them. The nearest railway station is Hamble station, roughly 3.3 miles north. Well-known places in the area include Calshot Castle (1.6 miles east) and Coldeast (4.1 miles north-east). The countryside around Stonehills includes Mercury Marshes.
Nearby places to Stonehills
Other services in Stonehills
Can I do it myself?
The biggest DIY mistake is sealing over old sealant. Silicone does not stick to old silicone, so it lifts and traps water and mould underneath. Everything old must be removed first.
Some sealant jobs are within reach of a careful DIYer, like a short, easy-to-reach joint indoors. Where it goes wrong is sealing over the old bead, working on a wet joint or overloading the gap.
Stonehills questions
Do you work for landlords with property near Hamble station?
Yes, landlords and agents are among the people we work for, and several properties can be quoted together. You can call 0345 464 0079 or send us an email with the details for a clear quote.
Will you come out to Stonehills?
Yes, Stonehills is covered. We work across London and the South East, from towns to the smallest places. The journey is planned ahead, so it helps to know about access.
What sealant do you use?
It depends on the joint: anti-fungal sanitary silicone in wet areas, and other sealants where joints move or face the weather. We use products from Arbo and Everbuild.
Can new sealant go over the old?
No, it won’t last. It can look neat for a few weeks, but the new layer lifts away from the old one. The old sealant has to come out completely.
Is it worth trying it myself?
It depends on the job. High-level, external movement and fire-rated joints are professional jobs.
What do you need from me for a quote?
A short description and the location, with photos by email if possible. We’ll ask anything else we need to know.
Can you work on commercial sites?
Yes. We’ve worked for hotels, offices and other businesses.
How long does external mastic take?
That depends on the amount of work, but most jobs take a few hours to a few days, depending on the length of joint and the access. We will give you a better idea when we quote.
Landlord and commercial work in Stonehills
Businesses can book us for washrooms, kitchens, offices and more. On commercial sites, working times can be discussed when we quote.
A neglected joint can let water reach the structure, which is a bigger problem in a rented property. Resealing at the right time is simple maintenance.
Do you need external mastic in Stonehills?
Buildings move more than people expect. Clay bricks expand slightly over their life, concrete and block shrink, and everything moves with temperature and wet. All of that ends up in the joint sealant.
Keep an eye out for these signs:
- Damp patches traced to an open external joint
- Movement joints filled with mortar instead of sealant
- Sealant pulling away from one side of the joint
- Gaps where render, brick and frames meet
For site and facilities teams at buildings such as Fawley Infant School, larger buildings have long runs of movement joint that eventually need resealing.
What your quote should include
- Whether you can choose the colour
- What product goes in the joint
- What insurance they hold
- What preparation is included