Hampshire · England
External & façade joints in Owslebury, Hampshire
Problem with your movement joints in Owslebury? We cut out the old, prepare the joints and apply the right sealant, with a one-year guarantee.
- Hard, crazed mastic that has stopped moving
- Sealant that has lost its bond to the brick or render
- Joints pointed up with cement by mistake
Owslebury: your questions answered
Do you work for landlords with property near Shawford station?
Yes, we work for landlords and letting agents. You can call 0345 464 0079 or send us an email with the address and a few details, and we’ll give you a fixed price before any work starts.
Do you cover Owslebury for external mastic?
Yes. Our work covers London and the South East, and Owslebury is part of that. Just call 0345 464 0079 or email us with a few details of the job, and we’ll give you a clear quote.
Do you guarantee your work?
Yes: twelve months. If anything is not right with the work within the year, let us know and we will sort it.
Can you work on commercial sites?
Yes. We work in offices, washrooms, hotels and other commercial premises. Working times can be discussed when we quote.
Will you leave a mess?
We keep the work tidy. We protect what’s around the joints, and the area is left clean when we finish.
Do you have insurance?
Yes. Full insurance covers our work.
Is it OK to fill a movement joint with cement?
No, not where the gap is a movement joint. Filling it with mortar defeats its purpose. A flexible sealant is the right fill.
What sealant do you use?
Products from Arbo and Everbuild, among others, chosen to suit the joint. We will tell you what we’re using and why.
External mastic in Owslebury
Getting the depth right is half the job. Backing rod controls how deep the sealant goes and keeps it off the back of the joint, leaving it bonded to two faces so it can move with the wall. We work on concrete & block, render & cladding joints and copings & trims, and people most often call us about weeds or debris growing in open joints and sealant pulling away from one side of the joint.
Older homes in small places like Owslebury may be stone, brick or timber-framed, often with later extensions. The joints where those materials meet are the weak points.
Whatever the size of the job, it’s backed by our one-year guarantee in Owslebury and across Hampshire.
- Location
- Owslebury (SO21)
- Region
- Hampshire
- Guarantee
- One year on every job
- Quotes
- Quoted before any work starts
- Telephone
- 0345 464 0079
- Page updated
- 26 October 2026
Landlords, agents and businesses in Owslebury
For anyone letting property in or around Owslebury, several properties can be quoted together. Just tell us the addresses and what each one needs, and pictures by email help.
We also work for businesses, from offices to washrooms and kitchens. On commercial sites, working times can be discussed when we quote.
How the job changes by surface
Concrete and blockwork
Wide joints in concrete need the depth controlling carefully. Backing rod sized to the joint sets it so the sealant isn’t too deep.
Render joints
The face of render can be soft, so a sealant that stretches easily protects the edges. Priming is done where the sealant calls for it.
What we do, step by step
On the day, there’s very little for you to do. Point us to the joints and we’ll get on with it. The job generally takes anything from a few hours to several days, depending on the building, including the tidy-up. In a small place like Owslebury, access is usually the main thing to plan. For outside work, also let us know about exposed walls and any outbuildings involved.
- We start by walking round the building and agreeing the joints and the access.
- We cut out the old mastic and rake out anything in the joint.
- Joint faces are cleaned back and primed if the sealant needs it.
- We fit closed-cell backing rod to control the depth.
- The exterior sealant is applied, tooled and checked along its length.
Getting ready for the visit
- Keep pets and children clear of the area while we work
- Mention any tricky access
- Tell us if parking is tricky
Ask for a quote
We quote each job on its own. Just ring 0345 464 0079 or email us with the details.
Read more
When to call us in Owslebury
If plants are growing out of a joint, the sealant has normally failed or was never there. Roots and dirt hold water against the wall and speed up the damage.
People generally contact us when they notice one of these:
- Rigid filler in a joint that should flex
- Rain getting behind render or cladding at a joint
- Plants rooting in failed movement joints
- Panel joints letting water in
If you let a flat or house near Shawford station, outside joints that have cracked can let damp into a rental, so check them between lets.
What your quote should include
- When the joint can take water or movement
- How the joint is cleaned and prepared
- How the colour is chosen
- Whether they’re fully insured
Aftercare tips
After the cure time, these simple habits help:
- Fix overflowing gutters above sealed joints
- Check external joints each spring
- Get split or bare joints resealed while the damage is small
- Keep soil, plants and ivy away from the joints
Keep pressure washers away from the sealant. High-pressure water can lift the edges and let water in behind.
Act while the splits are small. Then it’s a straightforward cut-out and reseal before water has had years to get in.
Places near Owslebury
Other services in Owslebury
Owslebury buildings and 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 site and facilities teams at buildings such as Owslebury Primary School, larger buildings have long runs of movement joint that eventually need resealing. For an older house near a landmark such as Church of St Andrew, old and new materials meet at the roofline and walls, which is where sealant earns its keep.
Owslebury is about 4 miles south-east of Winchester, in Hampshire. If you need external mastic in Owslebury, it’s easy to get a quote: please call 0345 464 0079 or drop us an email. We cover Hampshire from our Crawley base. We cover 683 towns and villages across Hampshire. You can also see our page for Southampton, about 8 miles away.
Our applicators cover all of SO21 for external mastic. Local streets include Beech Grove, Main Road and Pitcot Lane. Close by, we work in Owslebury Bottom (1 mile north), Baybridge (1 mile south-east), Hensting (1 mile south-west), Morestead (1 mile north) and Lane End (3 miles north-east). Larger places within reach include Winchester (4 miles north-west), Gosport (15 miles south), Eastleigh (4 miles south-west), Fareham (11 miles south), Horndean (13 miles south-east) and Totton (12 miles south-west).
Local landmarks in Owslebury
Locally, jobs take us to homes and businesses close to Ship Inn. The nearest railway station is Shawford station, about 2.8 miles west. Well-known places in the area include Wolvesey Castle (3.9 miles north-west) and The Gurkha Museum (3.9 miles north-west). The countryside around Owslebury includes Twyford Down and Hockley Meadows.
When it isn’t the sealant
We will always be straight with you, so here’s what sealant can’t fix:
- Cutting new joints into brickwork, which is building work rather than sealant work
- Movement that is more than a sealant joint can take
- Damp from another source, such as a leaking gutter or a bridged damp-proof course
If you are not sure, just call 0345 464 0079 or email us and we’ll give you a straight answer before booking.
What we seal
- Joints between brick and frames
- Copings & trims
- Render & cladding joints
- Façade panels
- Brickwork movement joints
- Concrete & block
DIY sealant or a professional job?
Sealing over old silicone is the commonest DIY error. New silicone won’t bond to old, so it lifts and traps water and mould underneath. Everything old must be removed first.
Not every job suits DIY: work at height, external movement joints, fire-rated sealant and large areas call for the right materials, safe access and experience.