Southampton · England
Bassett External Mastic
Sealing brickwork movement joints, render, cladding and façade joints for homeowners, landlords and businesses in Bassett. Fully insured, ARBOMaster approved and guaranteed for a year.
- Joints pointed up with cement by mistake
- Water getting into walls through failed joints
- Brick movement joints where the sealant has split
FAQs for Bassett
Is Bassett within the area you cover?
Yes. Bassett is within the area we cover, which takes in towns, villages and rural addresses. Our work covers London and the South East. Let us know about access, parking and anything unusual about getting there when you book.
Does living near the coast affect external mastic in Bassett?
Near the coast, wind-driven rain and, nearer the shore, salt air make outside sealant work harder. Choosing the right sealant for the frame and wall, laid at the right depth, helps it last.
How long should I leave it?
That depends on the sealant used, so please follow the time we give you.
What is a movement joint?
Walls move with heat, cold and moisture, so long walls have planned gaps to take that movement. It’s closed with backing rod and a flexible sealant.
Do you seal joints where cladding meets other materials?
Yes. Materials like render, brick, metal and uPVC all move differently, so a flexible sealant is needed where they meet. We choose one that suits both surfaces.
Will there be a smell?
Sometimes, a little. Any smell clears as the sealant cures.
Do you hold any approvals?
Yes. Mr Mastic is an ARBOMaster approved applicator.
Do you remove the old sealant?
Yes. We cut out all the old sealant and clean the joint.
External mastic in Bassett
We cut out failed sealant, set the joint depth with closed-cell backing rod and reseal with a low-modulus exterior sealant. The colour is chosen to suit the brick or render. We are often asked to deal with hard, crazed mastic that has stopped moving and joints with sealant missing in places, across concrete & block, copings & trims and façade panels.
In a smaller place like Bassett, some homes face open ground, so exposed walls and rooflines take more wind-driven rain. Joints on those sides are usually the first to go.
All of our work is guaranteed for twelve months, in Bassett and everywhere else we cover.
- Place
- Bassett (SO16, SO17, SO15)
- Wider area
- Southampton
- Cover
- 12 months on all our work
- Quote
- A clear quote up front
- Telephone
- 0345 464 0079
- Page updated
- 26 October 2026
Landlords, agents and businesses in Bassett
Mouldy or split sealant often shows up at the end of a tenancy, and it’s quick to put right between tenancies. Several properties can be quoted together.
We regularly work with letting and managing agents. Send the address, what’s needed and the access arrangements and we will give you a quote.
What happens on the day
The work is kept neat and contained to the joints we’re treating, so you can carry on as normal. The job normally takes anything from a few hours to several days, depending on the building, and we explain the cure time before we leave. For a job in Bassett, we agree the time, the access and parking before the day. If the work is outside, the weather plays a part, as sealant needs a dry surface.
- We look at every joint and agree a colour to suit the wall.
- We take out the old sealant until the faces are sound.
- Backing rod goes in so the sealant can stretch between the two faces.
- Primer is applied wherever the sealant needs it.
- We gun in low-modulus sealant and tool it neatly.
Getting ready for the visit
- Plan for the work area to be out of bounds to pets and children
- Tell us if parking is tricky
- Clear items away from the joints we are working on
Get a quote
If you are in Bassett and need external mastic, ring 0345 464 0079 or send us an email. Tell us what the problem is and where, and you’ll get a clear quote before work begins.
Related advice
Why act early in Bassett
Running new sealant over the old bead rarely lasts. The new layer can’t bond properly to old, weathered material, so we always take the old sealant out. In an older home around Bassett, damp from a failed joint can get into timber and plaster, which is far harder to put right than the sealant itself.
Leaving a failed joint usually makes the job bigger, not smaller, because water and mould keep working on it. If you’re unsure, ring 0345 464 0079 or send us an email for an honest opinion and a quote.
What you get with us
- Over 20 years’ experience
- You choose the colour before work begins
- Quality sealants from Arbo and Everbuild
- Every job guaranteed for a year
Take a look at our cost guide or customer reviews.
What the job involves on each surface
Joints between dissimilar materials
Different materials may need different primers. Both surfaces are cleaned and primed as the product requires.
Render joints
Cracks along render joints let water in behind the coat. Resealing the joints early keeps water out.
DIY versus a professional finish
Sealing over old silicone is the commonest DIY error. Silicone does not stick to old silicone, so it peels away and traps moisture behind it. All the old material has to come out first.
A DIY attempt does not rule out a professional job. We cut it out and start again, so just mention it when you contact us.
More services for Bassett
External mastic in Bassett: local notes
Bassett is close to 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 South Stoneham House (about 1.5 miles east) nearby, there’s older building stock in the area around Bassett 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.
Rented homes near Swaythling station change hands often, and outside joints that have cracked can let damp into a rental, so check them between lets. For an older house near a landmark such as St Michael and All Angels Church, older walls, gutters and the joints where extensions meet them need a flexible sealant.
Bassett is about 2 miles north-west of Southampton, in Southampton. For external mastic in and around Bassett, it’s easy to get a quote: please ring 0345 464 0079 or email us. We are based in Crawley and cover Southampton. Our area takes in 40 places across Southampton, large and small.
Our applicators cover all of SO16, SO17 and SO15 for external mastic and the streets around it. Whether your property is on Burgess Road, Pointout Road and Chetwynd Road or anywhere close by, our applicators can take on the job. We also cover Highfield (1 mile south-east), Lordswood (1 mile west), Chilworth (1 mile north), Coxford (1 mile west) and Shirley (2 miles south-west). Further out, we also cover Thornhill (4 miles south-east), Chartwell Green (3 miles east), Harefield (3 miles south-east), Itchen (3 miles south-east), Sholing (4 miles south-east) and Woolston (4 miles south-east).
Local landmarks in Bassett
Typical jobs here are in homes near The Bellemoor pub, Southampton Common and Saint George Catholic Voluntary Aided College Southampton and the streets around them. Bassett’s nearest station is Swaythling station, about 1.5 miles east. Nearby you’ll also find Netley Castle (4.9 miles south-east) and Foresters Museum & Archive (2.1 miles south). For a walk, there’s Flexford Nature Reserve.
When it isn’t the sealant
Some problems need a builder, plumber or other trade rather than us:
- Cutting new joints into brickwork, which is building work rather than sealant work
- Damp that is not coming from the joint
- Subsidence or other structural problems
If you are not sure, just phone 0345 464 0079 or send us an email and we will give you a straight answer.
Surfaces we seal
- Copings & trims
- Concrete & block
- Façade panels
- Brickwork movement joints
- Joints between brick and frames
- Render & cladding joints
When to call us in Bassett
Using the wrong sealant is another common reason. A stiff, general-purpose sealant can’t cope with a joint that moves a lot, and it tears off the sides.
Common reasons people contact us include:
- Leaking joints around cladding and façade panels
- Joints with sealant missing in places
- Water getting into walls through failed joints
- Hard, crazed mastic that has stopped moving
Schools such as Cantell School are buildings too, and movement joints, cladding joints and gutters on larger buildings need the same care as a house’s.
What your quote should include
- Are they insured?
- Who turns up on the day
- Is the old sealant removed completely?
- Whether the sealant suits the joint