Hampshire · England
External & façade joints in Swanmore, Hampshire
Specialist external mastic for Swanmore: careful preparation, the right product and tidy work. Call for a quick quote.
- Weathered mastic that no longer stretches
- Water getting into walls through failed joints
- Leaking joints around cladding and façade panels
FAQs for Swanmore
Will you come out to Swanmore?
Yes, smaller places are covered as well as towns. We work across London and the South East. Let us know about access, parking and anything unusual about getting there when you book.
Can you help a landlord with a rental near Botley station?
Yes. We work for landlords and letting agents as well as homeowners, and several properties can go on one quote. Just ring 0345 464 0079 or email us with the address and what needs doing, and we will give you a clear quote.
Are you ARBOMaster approved?
Yes. We hold ARBOMaster approved applicator status and we’re fully insured too.
Why is there a gap in my brick wall?
Most straight vertical gaps in brickwork are movement joints. It gives the wall room to move and needs a flexible seal, not mortar.
Do you work for hotels and businesses?
Yes, regularly. We can plan bigger jobs in stages.
Do you take out the old sealant first?
Yes, always, and completely. New sealant won’t bond properly to old, so any old material comes out before anything new goes in.
What sealant do you use?
Quality sealants from brands including Arbo and Everbuild, chosen to suit the joint. We explain the product when we quote.
Is it messy?
No. We protect the surfaces around the joints, and we clear up the old sealant and our materials before we leave.
How we handle external mastic in Swanmore
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, so it bonds to the two sides only and can stretch. If you have plants rooting in failed movement joints and rain getting behind render or cladding at a joint, we can help, whatever the surface.
Houses in smaller places like Swanmore can stand more in the open than those in a built-up town, and walls and rooflines facing the weather take the worst of it. Joints on those sides are normally the first to go.
We stand behind the work with a one-year guarantee.
- Location
- Swanmore (SO32)
- Wider area
- Hampshire
- Guarantee
- 12 months on all our work
- Quote
- A clear price before we start
- Telephone
- 0345 464 0079
- Updated
- 26 October 2026
What affects the quote in Swanmore
The quote reflects the job in front of us. We take into account:
- The amount of work
- Access and height
- Mould in or behind the old joints
- Any working-time requirements on site
What it costs depends on the amount of work, how hard the old material is to remove and how easy the joints are to reach. We give a clear quote before any work starts, so you know where you stand.
What to tell us for a quote
Photos help, but a description is a good start. Please mention:
- Where the job is, and your postcode
- If it’s domestic, commercial or a hotel
- Whether it has been sealed before
- Access, such as stairs, a lift or height
If you are in Swanmore and need external mastic, ring 0345 464 0079 or email us. Tell us what the problem is and where, and we will agree the price before any work begins.
Outside joints around Swanmore
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.
In the older streets around Church of St Barnabas, an extension built onto an older house moves differently, and the joint between them takes the strain. Schools such as Swanmore Church of England Aided Primary School are buildings too, and movement joints, cladding joints and gutters on larger buildings need the same care as a house’s.
Swanmore is about 6 miles east of Hedge End, in Hampshire. Whether you are in the middle of Swanmore or further out, external mastic is available for homes and businesses alike, from flats and houses to offices and hotels. We cover 683 towns and villages across Hampshire, from the larger towns to small villages. There’s also a page for Southampton, roughly 9 miles from Swanmore.
Here we cover the SO32 postcode area for external mastic. That includes homes and businesses on Church Road, Myers Close and Spring Vale and the roads around them. Neighbouring places we cover for external mastic include Hill Grove (1 mile east), Upper Swanmore (1 mile north-east), Mislingford (1 mile south-east), Shirrell Heath (1 mile south) and Kingsmead (2 miles south-east). Within a short drive, we also cover Winchester (10 miles north-west), Gosport (10 miles south), Havant (10 miles south-east), Eastleigh (7 miles west), Fareham (6 miles south) and Horndean (8 miles east).
What’s near Swanmore
Around Swanmore, our work takes us to homes and buildings near Swanmore College of Technology, among other places. The nearest railway station is Botley station, about 3.7 miles south-west. Well-known places in the area include Bishop's Waltham Museum (1.7 miles north-west) and Knowle Hospital (4.3 miles south). Not far away are Beacon Hill and Bishops Waltham Branch LNR.
What the job involves on each surface
Cladding and façade panels
Where a cladding system has its own specified sealant, we follow it, or one the system allows. Tell us what the building has when you get in touch.
Render joints
Render has movement joints and stop beads that need sealing. We reseal them with a flexible exterior sealant that suits the render colour.
Signs you need external mastic in Swanmore
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.
Any of these means the joints need attention:
- Panel joints letting water in
- Rigid filler in a joint that should flex
- Weathered mastic that no longer stretches
- Gaps where render, brick and frames meet
For landlords with property near Botley station, outside joints that have cracked can let damp into a rental, so check them between lets.
Before booking anyone
- Who does the work, and how experienced they are
- What the cure time is
- What happens if they find a problem under the old sealant
- How long the guarantee is
Keeping the joints in good condition
Once the sealant has cured, a few habits help it last:
- Never let anyone fill a movement joint with mortar
- Check the sealant is paintable before painting near it
- Walk round the building once a year and look at the joints
- Keep high-pressure jets off the joints
If you have more work done on the wall, such as new render, cladding or an opening, show the contractor the movement joints. They should be kept open and resealed, not filled.
Act while the splits are small. At that stage it’s a simple cut out and reseal with no damage behind it to deal with.
Nearby places to Swanmore
More services for Swanmore
Should I try it myself first?
Too much sealant is as bad as too little. A thick, smeared bead looks untidy and does not move well, and the joint depth matters as much as the finish.
The biggest DIY mistake is sealing over old sealant. New silicone will not bond to old, so it lifts and traps water and mould underneath. Everything old must be removed first.
Work for landlords, hotels and businesses
We work for landlords and letting agents as well as homeowners. Sealant work between tenants keeps a property looking cared for before the next move-in.
Housing providers, facilities teams and property managers book us too in Swanmore and across Hampshire. Several sites can be quoted together.
The process
We bring everything the job needs with us, so there’s nothing for you to buy. Once we have agreed what’s being done, the area is protected and the work begins. It normally takes a few hours to a few days, depending on the length of joint and the access. A visit to Swanmore is planned like any other: the time, the access and where to park are agreed in advance. If the work is outside, the weather plays a part, as sealant needs a dry surface.
- First, the joints are inspected and the access agreed.
- Every bit of old sealant and any mortar or debris is cut out.
- Joint faces are cleaned back and primed if the sealant needs it.
- Backing rod sized to the joint goes in to set the depth.
- We apply the sealant, tool it and check the whole run.
Getting ready for the visit
- Tell us if parking is tricky
- Tell us about access, such as stairs, a lift or high-level joints
- Tell us about any water getting in
Getting a quote
For a quote, ring 0345 464 0079 or send us an email and tell us where the job is and what the problem looks like. We’ll give you a clear price before any work starts.