Hampshire · England
External & façade joints in Twyford, Hampshire
We cover Twyford for sealing brickwork movement joints, render, cladding and façade joints. Old material cut out, joints cleaned and sealed neatly and a one-year guarantee.
- Water getting into walls through failed joints
- Moss and dirt in joints with no sealant left
- Old sealant gone brittle and cracked
External mastic in Twyford, done properly
We’re ARBOMaster approved applicators, and each external joint gets a sealant suited to it. Porous or awkward surfaces are primed where the sealant needs it. If you have rain getting behind render or cladding at a joint and plants rooting in failed movement joints, we can help.
Somewhere as small as Twyford, homes and farm buildings often face open ground, so walls and rooflines take the full force of wind and rain. Gutter joints and wall joints there need a sealant that can flex and stay put.
There’s a 12-month guarantee on every job.
- Location
- Twyford (SO21)
- Region
- Hampshire
- Cover
- One year on every job
- Quotes
- A clear quote up front
- Telephone
- 0345 464 0079
- Updated
- 26 October 2026
What we’re called out for in Twyford
Sunlight, wet weather and frost wear exterior sealant down. Over the years it hardens, cracks on the surface and loses its give, so the next time the wall moves, it splits or pulls away.
Keep an eye out for these signs:
- Sealant pulling away from one side of the joint
- Failed sealant between panels on a façade
- Movement joints filled with mortar instead of sealant
- Rain getting behind render or cladding at a joint
For landlords with property near Shawford station, failed wall and movement joints let damp in, so they’re worth checking between tenancies.
Questions to ask before booking
- Whether they seal over old material or remove it
- How long the guarantee is
- How the colour is chosen
- Who turns up on the day
Surface by surface
Cladding and façade panels
Metal and composite panels move a lot with temperature, so the joint sealant has to cope with frequent movement. We choose the product to suit.
Concrete and blockwork
Blockwork and concrete shrink over time and move with the seasons. We reseal their joints with backing rod and a flexible product.
Should I try it myself first?
Not every job suits DIY: work at height, external movement joints, fire-rated sealant and large areas need the right product, the right access and the right method.
If you’ve already had a go yourself, that is fine. We cut it out and start again, so tell us about it when you ask for a quote.
How it works
Most of a good job is in the preparation, and we do not rush it. Joints are cleaned back and dried before anything new goes in. In total, it generally takes a few hours to a few days, depending on the length of joint and the access. Somewhere like Twyford needs a little journey planning: let us know about lanes, gates and parking. We bring what the job needs, so it can be finished in one trip where possible.
- 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.
- We prime the faces where required.
- We gun in low-modulus sealant and tool it neatly.
How to prepare
- Mention if the joints have been sealed before
- Mention any leaks or damp you’ve noticed
- Tell us about access, such as stairs, a lift or high-level joints
How to get a quote
Every job is quoted individually. Simply phone 0345 464 0079 or send us an email and describe the job, and pictures are welcome.
Read more
Work for landlords, hotels and businesses
Failed sealant is one of the commonest items on a check-out report. Several properties can go on one quote.
Housing providers, facilities teams and property managers book us too in Twyford and across Hampshire. Several sites can go on one quote, and we are fully insured.
Twyford: your questions answered
Can you do external mastic in Twyford?
Yes, Twyford is within the area we cover. We work across London and the South East. Just phone 0345 464 0079 or send us an email with a few details of the job, and we’ll give you a clear price.
Do you work for landlords with property near Shawford station?
Yes, landlords and agents are among the people we work for. You can phone 0345 464 0079 or email us with the details for a clear quote.
What do you need from me for a quote?
Just the basics: where it is, what you’ve noticed and how we reach it. After that, simply ring 0345 464 0079 or drop us an email.
Can I add another job to the visit?
Of course. Combining jobs makes good use of the visit.
Do you hold any approvals?
Yes. We hold ARBOMaster approved applicator status and we are fully insured too.
Do you remove the old sealant?
Yes, every time. New silicone doesn’t stick to old silicone, so the joint is cleaned back first.
What sealant do you use?
The product depends on the job: sanitary silicone where it gets wet, and sealants suited to movement or weather elsewhere. We use products from Arbo and Everbuild.
Do the sealants smell?
There can be a smell while the sealant cures, but it fades. Opening a window helps.
External mastic in Twyford: local notes
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.
Schools such as Twyford St Mary's Church of England Primary School are buildings too, and movement joints, cladding joints and gutters on larger buildings need the same care as a house’s. If you live in an older home near Church of St Mary, an extension built onto an older house moves differently, and the joint between them takes the strain.
Twyford is about 3 miles south of Winchester, in Hampshire. Twyford gets the same service as everywhere we cover: old sealant removed completely, careful preparation and a 12-month guarantee. Twyford is one of 683 places in Hampshire where we work for external mastic. Our Southampton page covers work nearby.
All of SO21 is within our area for external mastic, from the main roads to the quietest streets. Whether your property is on High Street, Roman Road and The Crescent or anywhere close by, our applicators can take on the job. You will find Twyford on the B3335, which makes it straightforward to reach with everything needed for external mastic. Neighbouring places we cover for external mastic include Shawford (1 mile north-west), South Down (1 mile west), Compton (1 mile west), Otterbourne (1 mile south-west) and St Cross (2 miles north). Within a short drive, we also cover Winchester (3 miles north), Eastleigh (4 miles south), Fareham (13 miles south-east), Andover (15 miles north-west), Horndean (15 miles south-east) and Totton (11 miles south-west).
Local landmarks in Twyford
Typical jobs here are in homes near Phoenix Inn and St. Cross Park and the streets around them. For rail, the closest station is Shawford station, about 0.7 miles west. A little further out are Wolvesey Castle (2.8 miles north) and The Gurkha Museum (2.6 miles north). For a walk, there’s Twyford Down and Hockley Meadows.
Quotes for external mastic in Twyford
You will get a clear quote before we start. It takes into account:
- Any working-time requirements on site
- Whether old sealant or filler has to be cut out
- Whether the work is at height
- Any mould that needs treating
Commercial jobs are quoted on the same basis as homes: the amount of work, the access and the products needed. Ask us for a quote and we’ll go through it with you.
Helping us quote
Photos help, but a description is a good start. Please mention:
- How we’d reach the joints
- What’s wrong with the joints now
- A few pictures by email, if you can
- If someone has resealed it before
Quotes start with a quick conversation. Tell us what’s wrong, where it is and how much there is, and we will talk you through what we’d do. Whenever you are ready, ring 0345 464 0079 or drop us an email.
When something else is needed
In fairness, some problems need a different trade:
- Movement that’s more than a sealant joint can take
- Cracks in the bricks or render themselves, away from the joints
- Walls that need new movement joints cut into them
Not sure which it is? You can phone 0345 464 0079 or email us and we’ll tell you honestly before you book.
Joints and surfaces we work on
- Joints between brick and frames
- Render & cladding joints
- Copings & trims
- Concrete & block
- Façade panels
- Brickwork movement joints