Hampshire · England
External & façade joints in Stanswood, Hampshire
Movement joints in Stanswood need attention? We cut out the old, prepare the joints and apply the right sealant, and the work is guaranteed for a year.
- Water getting into walls through failed joints
- Moss and dirt in joints with no sealant left
- Hard, crazed mastic that has stopped moving
Landlord and commercial work in Stanswood
For anyone letting property in or around Stanswood, several properties can go on one quote. Just tell us the addresses and what each one needs, and photos by email help.
From a single let to a portfolio, the work is the same standard: old sealant fully removed, joints prepared properly and a 12-month guarantee.
How we handle external mastic in Stanswood
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 damp patches traced to an open external joint and old sealant gone brittle and cracked, across façade panels, joints between brick and frames and copings & trims.
Around Stanswood, older buildings can be stone, brick or timber-framed, many with extensions added later. The joints where those materials meet are the weak points.
You are covered for a year from the day we finish. If anything is not right with it, ring 0345 464 0079 or drop us an email.
- Where
- Stanswood (SO45)
- Region
- Hampshire
- Cover
- One year on every job
- Quotes
- A clear price before we start
- Telephone
- 0345 464 0079
- Updated
- 26 October 2026
DIY sealant or a professional job?
A DIY attempt does not rule out a professional job. We remove it and do the joint properly.
If you’re set on DIY, put the effort into preparation: remove every trace of old sealant, clean and dry the joint, and follow the product’s cure time. If it fails, we can still redo it.
How we quote for external mastic
Every job gets its own quote. This is what makes a difference:
- How easy the joints are to reach
- The amount of work
- How much old sealant there is and how hard it is to remove
- The type of sealant required
Doing several joints on one visit is normally more efficient than separate visits. You’ll get one clear quote for the whole job.
Helping us quote
To make quoting easier, please include:
- Any access issues, like height or stairs
- The problem you’ve noticed
- A few photos by email, if you can
- Whether it has been sealed before
To get a quote, ring 0345 464 0079 or drop us an email with the location and a short description of the problem. We’ll give you a clear price before any work starts.
Towns and villages near Stanswood
Other services in Stanswood
FAQs for Stanswood
Will you come out to Stanswood?
Yes, we do. We work across London and the South East, and smaller places are part of that. Longer journeys are simply planned in advance.
Can you help a landlord with a rental near Hamble station?
Yes. We work for landlords and letting agents as well as homeowners, and several properties can be quoted together. You can phone 0345 464 0079 or send us an email with the details for a clear quote.
Can I do it myself?
Some simple jobs can be done by a careful DIYer. The usual mistakes are sealing over old sealant, sealing a damp joint and using too much.
Do you have insurance?
Yes. We are fully insured, and we can confirm the details when we quote.
Do you seal joints where cladding meets other materials?
Yes. Materials like render, brick, metal and uPVC all move differently, so the joint between them must be flexible. The sealant is matched to both sides.
Where is Mr Mastic based?
We’re a Crawley-based firm. We work across South East England, London and Scotland.
How long before the joint can be used?
Different products cure at different speeds, so follow the cure time we give you.
Is there a guarantee?
Yes: twelve months. If there’s a problem with our work in that time, tell us and we’ll put it right.
Leave it or put it right?
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. Where a wall is exposed, as many are in small places like Stanswood, wind-driven rain gets into any failed joint, and damp in older walls is slow to dry out.
Commercial jobs are quoted on the same basis as homes: how much there is to do, how we reach it and what it needs. Ask us for a quote and we’ll go through it with you.
Why Stanswood customers choose us
- Old sealant always removed completely
- We agree the colour with you first
- Every job guaranteed for a year
- Anti-fungal sanitary silicone in wet areas
Take a look at what affects the cost and our reviews.
When something else is needed
In fairness, there are a few things sealant won’t fix:
- Damp that isn’t coming from the joint
- Walls that need new movement joints cut into them
- Structural movement, which needs a surveyor or engineer
If you are not sure, just ring 0345 464 0079 or send us an email and we’ll give you a straight answer.
Where we work in Stanswood
- Copings & trims
- Joints between brick and frames
- Concrete & block
- Render & cladding joints
- Façade panels
- Brickwork movement joints
How to look after the new joints
Joint life depends on how it’s used and looked after. We suggest:
- Wash walls gently around the sealant
- Keep water from gutters off the wall
- Leave the joints unpainted unless we’ve said otherwise
- Walk round the building once a year and look at the joints
Keep the joints clear of soil, plants and climbing growth. Damp material against the sealant shortens its life.
Once a joint cannot move, the wall finds another way, often as cracks near the joint. Catch it early and you reduce the risk.
Stanswood buildings and the weather
Stanswood 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. With historic houses such as Osborne House (about 4.8 miles south-east) nearby, there’s older building stock in the area around Stanswood as well as newer homes. Where a home is older, older walls and rooflines need a sealant that moves with them and suits the material.
For an older house near a landmark such as St George, an extension built onto an older house moves differently, and the joint between them takes the strain. If you let a flat or house near Hamble station, outside joints that have cracked can let damp into a rental, so check them between lets.
Stanswood is about 3 miles north-west of Cowes, in Hampshire. Anywhere in SO45, we cover external mastic for homes and businesses. Stanswood is one of 683 towns and villages in Hampshire we cover for external mastic. Our Southampton page covers work nearby, about 8 miles away.
All of SO45 is covered for external mastic, from the main roads to the quietest streets. If you are just outside Stanswood, we cover Sprat's Down (1 mile north), Calshot (1 mile north-east), Hillhead (1 mile north-east), Langley (1 mile west) and Blackfield (2 miles north-west). Within a short drive, we also cover Gosport (8 miles east), Eastleigh (11 miles north), Fareham (7 miles north-east), Totton (11 miles north-west), Chandler's Ford (13 miles north) and Hedge End (8 miles north).
What’s near Stanswood
The nearest railway station is Hamble station, roughly 4.8 miles north of the centre. Nearby you will also find Coldeast (5.4 miles north-east) and Calshot Castle (2 miles north-east). For a walk, there’s Mill Hill and Mercury Marshes.
What we do, step by step
Once we’re on site, we check the joints match what you told us. If we find something unexpected, we talk it through with you first. Most jobs then take anything from a few hours to several days, depending on the building. Somewhere like Stanswood needs a little journey planning: 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.
- We start by checking each joint, agreeing the ones to redo and how we will reach them.
- Old sealant and any debris are cut and raked out.
- 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.
- A flexible exterior sealant is applied and tooled in a colour to suit the wall.
Getting ready for the visit
- On commercial sites, let us know about site rules
- For indoor joints, keep the area dry beforehand if you can
- Let us know about parking restrictions
Ask for a quote
It all starts with a short chat. Tell us what’s wrong, where it is and how much there is. When it suits you, phone 0345 464 0079 or drop us an email.