Southampton · England
External & façade joints in Chilworth Old Village, Southampton
Sealing brickwork movement joints, render, cladding and façade joints for householders, landlords and businesses in Chilworth Old Village. ARBOMaster approved applicators, fully insured, with a one-year guarantee.
- Plants rooting in failed movement joints
- Rain getting behind render or cladding at a joint
- Sealant that has lost its bond to the brick or render
Can I do it myself?
If you do try it yourself, take your time over the 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.
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. All the old material has to come out first.
External mastic in Chilworth Old Village, done properly
Failed sealant is cut out, the depth set with closed-cell backing rod, and the joint resealed with a low-modulus sealant made for outside. We pick a colour that sits well with the wall so the line blends in. If you’re dealing with rigid filler in a joint that should flex and old sealant gone brittle and cracked, we can put it right, whatever the surface.
External sealant needs dry, clean surfaces, so work around Chilworth Old Village is planned for dry weather. Tell us about access to all sides of the building, including outbuildings and garages.
We guarantee the work for a year. If something isn’t right with it in that time, tell us and we will put it right.
- Place
- Chilworth Old Village (SO16)
- Wider area
- Southampton
- Guarantee
- A year, on every job
- Quotes
- A clear price before any work starts
- Call
- 0345 464 0079
- Updated
- 26 October 2026
Also near Chilworth Old Village
What else we do in Chilworth Old Village
Outside joints around Chilworth Old Village
Historic houses like South Stoneham House (about 2.8 miles south-east) are a reminder that the area around Chilworth Old Village 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. London and the South East are among the drier parts of the UK, but outside sealant still needs a dry, clean surface, so outdoor work is planned around the forecast.
If you let a flat or house near Chandlers Ford station, failed wall and movement joints let damp in, so they’re worth checking between tenancies. If you look after a building such as North Baddesley Junior School, its movement joints, gutters and trims need looking after like any other building’s.
Chilworth Old Village is about 2 miles south-west of Chandler's Ford, in Southampton. Whether you are in the middle of Chilworth Old Village or further out, we cover external mastic for every kind of property. Chilworth Old Village is one of 40 towns and villages in Southampton where we work.
Work in SO16 is quoted and booked the same way as anywhere else. Close by, we work in Chilworth (1 mile south-east), North Baddesley (1 mile north-west), Knightwood (2 miles north-east), Lordswood (2 miles south) and Bassett (2 miles south). Further out, we also cover Southampton (4 miles south), Shirley (3 miles south), Regents Park (3 miles south), Townhill Park (4 miles south-east), Midanbury (4 miles south-east) and Thornhill (5 miles south-east).
Around Chilworth Old Village
Typical jobs here are in homes near Cantell School, among other places. The closest station to Chilworth Old Village is Chandlers Ford station, roughly 2 miles north-east. Well-known places in the area include Eastleigh Museum (2.9 miles east) and Princess Anne Hospital (2.3 miles south). The countryside around Chilworth Old Village includes Emer Bog and Baddesley Common.
Why deal with it now?
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. Where a wall is exposed, as many are in small places like Chilworth Old Village, wind-driven rain gets into any failed joint, and damp in older walls is slow to dry out.
Homes and businesses are quoted the same way: the amount of work, the access and the products needed. Call for a quick quote and we will go through it with you.
Why choose Mr Mastic in Chilworth Old Village
- More than 20 years in sealant work
- Anti-fungal silicone where joints get wet
- Quality sealants from Arbo and Everbuild
- White, clear, grey or coloured to suit, where the product allows
Take a look at how sealant jobs are priced and what customers say.
Landlord and commercial work in Chilworth Old Village
Letting agents often deal with us directly. Tell us the address, the job and how access works and we’ll give you a quote.
Failed sealant is one of the commonest items on a check-out report, and it’s quick to put right between tenancies. Several properties can be quoted together.
How we quote for external mastic
We quote each job individually. This is what makes a difference:
- Access and height
- Which sealant suits the joint
- Mould in or behind the old joints
- When we can work, for business premises
The cost reflects the work involved, not guesswork. That’s why we ask about the job first.
What we need to know
You don’t need to know the technical terms. It helps if you can tell us:
- How we’d reach the joints
- If it’s domestic, commercial or a hotel
- Where the property is
- Roughly how big the job is
We do not publish a price list, because every job is different. Instead, your job gets its own clear quote. To arrange one, phone 0345 464 0079 or send us an email.
How the job changes by surface
Render joints
Water behind render can lead to blown patches. Resealing the joints early keeps water out and protects the render itself.
Brickwork movement joints
Brick moves with heat and moisture, and grows a little over time. That movement goes into the joint, so the sealant in it must stay soft and stretchy.
The process
Before we leave, we go over the finished joints with you and explain the cure time. The visit itself generally takes a few hours to a few days, depending on the length of joint and the access, depending on the size of the job. Somewhere as small as Chilworth Old Village, access is often the only tricky part. If the job is outside, mention outbuildings, exposed walls and how to reach them.
- Each joint is checked and the colour of the new sealant agreed.
- Failed sealant is removed back to clean, sound faces.
- Closed-cell backing rod is pushed in so the sealant bonds to two sides only.
- Primer is applied wherever the sealant needs it.
- A low-modulus exterior sealant is gunned in and tooled to a neat finish.
How to prepare
- Let us know if you’ve seen damp or leaks
- For business premises, tell us about site rules or sign-in
- Clear items away from the joints we’re working on
Getting a quote
To get a quote, call 0345 464 0079 or email us and tell us where the job is and what the problem looks like. You will have a clear quote before work begins.
Related advice
Chilworth Old Village: your questions answered
I let a flat near Chandlers Ford station. Can you help?
Yes, landlords and agents are among the people we work for, and several properties can go on one quote. Just call 0345 464 0079 or email us with the address and what needs doing, and we will give you a clear quote.
Is Chilworth Old Village within the area you cover?
Yes. Chilworth Old Village 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.
Where are you based?
We are based in Crawley, West Sussex, and we cover South East England, London and all of Scotland.
What should I tell you?
Only a few details: where it is, what you’ve noticed and how we reach it. After that, simply ring 0345 464 0079 or send us an email.
Should I point up the gap in my brickwork?
No, not if it’s a movement joint. Filling it with mortar defeats its purpose, and the wall may crack nearby. A flexible sealant is the right fill.
Do you use backing rod?
Backing rod goes into deeper joints as a matter of course. It controls the depth and stops the sealant bonding to the back, so the joint can move.
What does external mastic cost?
Size, access and the old material all affect the cost. Ask us for a quote and we will talk you through it.
Can you reach joints on upper floors?
It depends on the building. Tell us the height, the number of joints and what’s below them, and we’ll confirm what access is needed.
When to call us in Chilworth Old Village
A lot of failed joints come down to preparation: dusty or wet faces, no primer where one was needed, or old sealant left in. The new sealant then lets go long before it should.
Signs it’s time to call us include:
- Brick movement joints where the sealant has split
- Damp patches traced to an open external joint
- Gaps where render, brick and frames meet
- Leaking joints around cladding and façade panels
In the older streets around Church of St Denys, old and new materials meet at the roofline and walls, which is where sealant earns its keep.
What to look for in a quote
- Whether they seal over old material or remove it
- How much experience the applicator has
- Whether VAT is included
- What happens if the job turns out different