Southampton · England
Window & door mastic in Bassett, Southampton
Specialist window mastic for Bassett: the right sealant, proper preparation and a neat finish. Ask us for a quick quote.
- Hard, cracked sealant around windows
- Water coming in at the bottom corners of a door
- Gaps between the frame and the inside reveal
Window mastic for homes and businesses in Bassett
If you can feel air around a shut window, the gap is often at the frame. A new joint stops the air getting through and quietens the whistle on windy days. Where the air is getting in through the window itself, we’ll say so. If you have cold air getting in at the frame edge and damp patches on the reveal after heavy rain, we can put it right, whatever the surface.
Many houses in smaller places like Bassett have conservatories, garden rooms or patio doors. Their glazing joints and frame seals are as much a part of the job as the windows.
Big or small, it’s backed by our 12-month guarantee.
- Where
- Bassett (SO16, SO17, SO15)
- Region
- Southampton
- Cover
- 12 months on all our work
- Quote
- Quoted before any work starts
- Phone
- 0345 464 0079
- Last updated
- 26 October 2026
Looking after it afterwards
Once the sealant has cured, a few habits help it last:
- Keep drainage slots and sill grooves clear
- Keep jet washers away from the mastic
- Repaint timber before it’s bare
- Don’t paint over the silicone
Most silicone sealants won’t take paint, so mention any painting plans before any work starts. We can use a paintable sealant where that matters.
Water gets in quietly when mastic fails. Often the first sign is a damp patch inside or flaking paint on the reveal. Early resealing stops it reaching that point.
Landlords, agents and businesses in Bassett
If you manage several properties in or around Bassett, several properties can go on one quote. Just tell us the addresses and what each one needs.
We work for landlords and letting agents as well as homeowners. Resealing between tenancies is a simple way to keep a property in good order.
Common problems we fix in Bassett
A lot of older mastic was never designed to stay flexible. Once it’s rigid, every bit of frame movement pulls at it, leaving a hairline gap down one side.
Look out for any of the following:
- Draughty joints inside around the window
- Damp patches on the reveal after heavy rain
- Black, perished sealant on frames
- Hard, cracked sealant around windows
For site and facilities teams at buildings such as Cantell School, larger buildings have plenty of frames, and the mastic around each one ages.
What to look for in a quote
- Whether all the old sealant comes out first
- Whether they’re fully insured
- When the joint can take water or movement
- What the quote includes, VAT included or not
Leave it or put it right?
Redecorating is a good moment to renew the mastic. A clean new bead makes new paint or render look finished. Homes in smaller places like Bassett can face more weather, and failed outside joints let damp into walls. Inside, a split seal lets water into floors and panels just as it would anywhere.
Combining jobs into one visit is normally more efficient than separate visits, so tell us about everything that needs sealing. You’ll get one clear quote for the whole job.
Why us?
- Fully insured
- Domestic, commercial and hotel work
- Every job guaranteed for a year
- You choose the colour before work begins
Take a look at our cost guide and what customers say.
How it works
Most of a good job is in the preparation, so that’s where we spend the time. Every joint is cleaned and dried before new material goes in. In total, it normally takes a few hours for a handful of frames, longer for a whole house. Parking around Bassett is usually easier than in a town centre, but mention any lanes, gates or long drives. If the job is outside, tell us about side access and how high the joints are.
- We check each frame and agree which ones need doing.
- The old mastic is cut out and the surfaces cleaned back.
- We fit backing rod in deep gaps so the sealant is the right depth.
- New exterior sealant goes on in a matching colour and is tooled smooth.
- Finally we tidy up and check each joint.
How to prepare
- Clear the area around the work
- Tell us about access, such as stairs, a lift or high-level joints
- Tell us if parking is tricky
Get a quote
Need a quote? Please call 0345 464 0079 or drop us an email with a few details. You will know what we plan to do, and what it will cost, before any work begins.
Advice
What window mastic looks like in Bassett
Bassett 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. The South East is one of the drier parts of the UK, but outside sealant still needs a dry, clean surface, so outdoor work is planned around the forecast.
If you live in an older home near St Michael and All Angels Church, frames set in older brick or stone need a sealant that suits the wall as well as the frame. Rented homes near Swaythling station change hands often, and cracked frame mastic tends to show up as a draught or damp complaint, so it’s worth checking between lets.
Bassett is about 2 miles north-west of Southampton, in Southampton. From the centre of Bassett to the outskirts, we cover window mastic for every kind of property. Our Southampton coverage runs to 40 places, Bassett among them.
Every address in SO16, SO17 and SO15 is covered for window mastic, from the main roads to the quietest streets. If you need window mastic at a property on Burgess Road, Pointout Road and Chetwynd Road or a nearby road, our applicators can take on the job. Other places close to Bassett include 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).
Near you in Bassett
Locally, jobs take us to homes and businesses close to The Bellemoor pub, Southampton Common and Saint George Catholic Voluntary Aided College Southampton, among other places. The closest station to Bassett is Swaythling station, roughly 1.5 miles east. Well-known places in the area include Netley Castle (4.9 miles south-east) and Foresters Museum & Archive (2.1 miles south). The countryside around Bassett includes Flexford Nature Reserve.
When something else is needed
Some problems need a builder, plumber or other trade rather than us:
- Rotten timber, which needs a joiner first
- Faulty window hardware
- Damp coming through the wall itself rather than the frame joint
Not sure which it is? You can ring 0345 464 0079 or drop us an email and we will tell you honestly.
Where we work in Bassett
- uPVC windows
- Aluminium frames
- Timber windows & doors
- Patio & French doors
- Window sills
- Composite doors
Should I try it myself first?
Overfilling a joint is a classic DIY mistake. A heavy bead looks messy and copes badly with movement, and the joint depth matters as much as the finish.
Some sealant jobs are within reach of a careful DIYer, like a short, easy-to-reach joint indoors. Where it goes wrong is sealing over the old bead, working on a wet joint or overloading the gap.
FAQs for Bassett
Is Bassett within the area you cover?
Yes, smaller places are covered as well as towns. We work across London and the South East. Just mention lanes, gates or anything else about the route when you book.
Do you work for landlords with property near Swaythling station?
Yes, landlords and agents are among the people we work for. Just ring 0345 464 0079 or drop us an email with the address and what needs doing, and we’ll give you a clear quote.
Do you have sealant for grey or black windows?
Yes. Grey and black frames get grey or black sealant, and wood-effect frames generally suit brown.
Do I have to be there?
If the work is inside, we need someone to let us in. After that, you can carry on with your day.
Is there any odour?
Sometimes, a little. It fades as the sealant cures, and ventilation helps.
Which products do you use?
We choose the sealant for the joint, not the other way round. Where it moves, gets wet or faces the weather makes a difference, and we will tell you what we are using.
How much does window mastic cost in Bassett?
There’s no set price, as it depends on the job: how much there is, what’s there now, how we reach it and what it needs. We agree the price before any work begins.
Where do you work from?
Mr Mastic is based in Crawley. We cover Bassett and the rest of Southampton.