Southampton · England
Window Mastic in Bassett Green
Window and door frames in Bassett Green need attention? We remove the old material, prepare the joints and seal them properly, with a one-year guarantee.
- Old mastic that has gone black or come away
- Cold air getting in at the frame edge
- Untidy mastic left by window fitters
Different surfaces, different methods
uPVC windows
Plastic frames move a lot between a hot afternoon and a cold night, so the joint needs a low-modulus sealant that stays flexible. White is the usual colour, with brown, anthracite grey and black for coloured frames.
Aluminium frames
Aluminium needs a sealant that bonds to coated metal. We use a neutral-cure product.
Window mastic in Bassett Green
Colour matters on a frame. White, brown, anthracite grey, black and clear sealants are all available, so the line suits the frame instead of standing out. If you have gaps where the sill meets the wall and sealant in the wrong colour for the frame, we can put it right, whatever the surface.
In a smaller place like Bassett Green, some walls face open ground and catch the full force of the weather. The mastic around frames on those walls tends to age faster.
A 12-month guarantee comes with the work, just as it does everywhere we cover.
- Location
- Bassett Green (SO16, SO17, SO18)
- Region
- Southampton
- Guarantee
- 12 months on all our work
- Quotes
- Quoted before any work starts
- Phone
- 0345 464 0079
- Last updated
- 26 October 2026
Landlords, agents and businesses in Bassett Green
We work for landlords and agents as well as householders. Resealing between tenancies is a simple way to keep a property in good order.
Failed sealant is one of the commonest items on a check-out report. We can quote for more than one property at once.
Keeping the joints in good condition
To keep the joints looking good and working properly:
- Keep paint and stain on wooden frames in good order
- Air rooms to keep condensation down around windows
- Do not paint over the silicone
- Avoid harsh chemicals near the mastic
On timber frames, keep the paintwork in good order, since wood that gets wet swells and shrinks more. Keep paint off the silicone itself.
On timber windows, water behind the joint can lead to rot. Rotten timber needs a joiner, not a sealant, so early resealing is worth it.
Should I try it myself first?
Too much sealant is as bad as too little. A heavy bead looks messy and copes badly with movement, and the joint depth matters as much as the finish.
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.
Common questions in Bassett Green
Do you work for landlords with property near Swaythling station?
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 send us an email with the address and what needs doing, and we’ll give you a clear quote.
Will you come out to Bassett Green?
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.
Is it worth trying it myself?
For a simple, easy-to-reach joint, a careful DIYer can do a reasonable job. Most DIY failures come from sealing over old material, wet joints or too much sealant.
Can you do upstairs windows?
Generally, yes. We plan safe access before the job, so mention the height and anything in the way.
What should I tell you?
Let us know what needs doing and where, plus pictures if you have them. We will ask anything else we need to know.
Do you have sealant for grey or black windows?
Normally, yes. Mention the frame colour when you ask for a quote and we’ll match it as closely as we can.
Do you remove the old sealant?
Yes. Sealing over old sealant is the main reason resealing fails early, so we never do it.
How long does it take to reseal the windows on a house?
That depends on the number of frames, how they’re reached and the state of the old mastic. You will know the timing when we quote.
What affects the quote in Bassett Green
You will get a clear quote before any work starts. It takes into account:
- The product the joint needs
- The old material and how stubborn it is
- Mould in or behind the old joints
- How many areas need sealing
Combining jobs into one visit generally makes better use of the time than several visits, so it’s worth mentioning everything you’d like done. You will get one clear quote for the whole job.
What we need to know
The more you tell us, the more accurate the quote. When you get in contact, it helps to mention:
- The rough size of the job
- A few pictures by email, if you can
- What the problem is, such as mould, gaps, leaks or cracking
- Where the property is
Need a quote? Please phone 0345 464 0079 or drop us an email and tell us about the job. We’ll explain what we’d do and give you a clear quote before we start.
Places near Bassett Green
Also in Bassett Green
How it works
On the day, there’s very little for you to do. Show us the job and we’ll take it from there. The job generally takes anything from an hour or two to a full day, depending on how many frames there are. A visit to Bassett Green is planned like any other: the time, the access and where to park are agreed in advance. Outdoor jobs depend on a dry day, since sealant needs a dry surface.
- Each frame is looked over and we agree which ones need resealing.
- The old mastic is cut out and scraped back to clean surfaces.
- Where the gap is deep, backing rod goes in first.
- A flexible exterior sealant is applied in a colour to suit the frame.
- Every joint is tooled smooth and checked before we leave.
Before we arrive
- Tell us about any water getting in
- Clear the area around the work
- Where the joints are inside, avoid wetting them before we arrive
Get a quote
We do not publish a price list, because every job is different. Instead, your job gets its own clear quote. To arrange one, call 0345 464 0079 or send us an email.
Related advice
When something else is needed
We’ll always be straight with you, so here’s what sealant cannot fix:
- Worn gaskets, brush seals or a door that has dropped
- Rotten timber, which needs a joiner first
- Faulty window hardware
Not sure which it is? You can call 0345 464 0079 or drop us an email and we will tell you honestly before booking.
Surfaces we seal
- Composite doors
- Patio & French doors
- Window sills
- uPVC windows
- Aluminium frames
- Timber windows & doors
Bassett Green homes and the weather
Bassett Green is within about 3 miles of 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 the mastic around window and door frames, which can dry out and crack sooner where a building faces the weather. Historic houses like South Stoneham House (about 0.6 miles east) are a reminder that the area around Bassett Green has older buildings as well as new. In older buildings, older timber frames in brick or stone need a different approach from a modern uPVC window.
In the older streets around St Alban's Church, frames set in older brick or stone need a sealant that suits the wall as well as the frame. For landlords with property near Swaythling station, renewing tired window mastic between tenants heads off draught and damp complaints. For site and facilities teams at buildings such as Bassett Green Primary School, larger buildings have plenty of frames, and the mastic around each one ages.
Bassett Green is about 2 miles north of Southampton, in Southampton. We provide window mastic to homeowners, landlords and businesses in Bassett Green and nearby. Bassett Green is one of 40 towns and villages in Southampton where we work.
All of SO16, SO17 and SO18 is within our area for window mastic. Local streets include High Road, Lilac Road and Daisy Road, and we cover them all. Main roads around Bassett Green include the M27. Neighbouring places we cover for window mastic include Swaythling (1 mile east), Portswood (1 mile south), Mansbridge (1 mile east), St Denys (1 mile south) and North Stoneham (1 mile north). We also work in nearby towns such as Regents Park (3 miles south-west), Thornhill (3 miles south-east), Harefield (3 miles south-east), Itchen (3 miles south), Sholing (3 miles south-east) and Maybush (3 miles west).
What’s near Bassett Green
We work in homes and buildings around Riverside Park, The Brook pub and Cantell School and the streets around them. The closest station to Bassett Green is Swaythling station, about 0.6 miles east. A little further out are Royal South Hants Hospital (1.9 miles south) and Bitterne Local History Society Heritage And Research Centre (2.1 miles south-east). Not far away are Flexford Nature Reserve.