Hampshire · England
Window Mastic in Hedge End
Specialist window mastic for Hedge End: careful preparation, the right product and tidy work. Ask us for a quick quote.
- Gaps between the frame and the inside reveal
- Whistling draughts around closed windows
- Water coming in at the bottom corners of a door
Leave it or put it right?
Once mastic fails, rain can get between the frame and the wall. Left long enough, it can stain inside walls, spoil plaster and rot wooden frames. Resealing now is a small job by comparison. In a family home in Hedge End, a failed seal around a bath or a frame lets water into places you can’t see, like the floor under a bath, the back of a panel or the inside of a wall. Whatever the joint, failed sealant only gets worse.
What it costs depends on the size of the job, how hard the old material is to remove and access to the work. We give a clear quote before we start, so you know where you stand.
Why book with us
- More than 20 years in sealant work
- A sealant colour to suit the surroundings
- Homes, businesses and hotels
- Fully insured
Window mastic in Hedge End
If you can feel air around a shut window, the gap is often at the frame. A new joint stops the air getting through. If the draught is through the window seals instead, we will tell you. If you have old mastic that has gone black or come away and draughty joints inside around the window, we can put it right.
Walls in Hedge End that face the prevailing wind take the most weather, so the mastic there tends to fail first. It’s worth looking at every frame, not just the one that leaks.
A one-year guarantee comes as standard.
- Where
- Hedge End (SO30, SO31)
- Wider area
- Hampshire
- Guarantee
- 12 months on all our work
- Quotes
- A clear price before work begins
- Phone
- 0345 464 0079
- Last updated
- 26 October 2026
Landlords, agents and businesses in Hedge End
Letting agents and landlords in Hedge End can book us as well as householders. Resealing between tenancies is a simple way to keep a property in good order before the next move-in.
From a single let to a portfolio, you get the same standard of work: the old material taken out, careful preparation and a 12-month guarantee.
How the job changes by surface
Aluminium frames
Bi-fold and sliding aluminium doors have long frame joints, and the threshold joint takes a lot of water. Each is cleaned, backed where deep and resealed.
Timber windows & doors
Soft or rotten wood can’t be sealed successfully. If we find rot, we will tell you before going ahead, as that is a job for a joiner.
DIY sealant or a professional job?
A careful DIYer can reseal a simple joint, like a short, easy-to-reach joint indoors. The common mistakes are sealing over old sealant, sealing a damp joint and using far too much.
If you do try it yourself, take your time over the preparation: take out all the old sealant, make sure the joint is clean and dry, and give it the full cure time. If it fails, we can still redo it.
Questions from Hedge End
Is window mastic in Hedge End guaranteed?
Every job comes with our 12-month guarantee, wherever it is. We are fully insured, and an ARBOMaster approved applicator.
I let a flat near Hedge End station. Can you help?
Yes, rental work is part of what we do. You can phone 0345 464 0079 or send us an email with the address and a few details, and we will give you a fixed price before any work starts.
Can you get sealant to suit coloured frames?
Yes, we choose a colour to suit the frame. Anthracite grey, black, brown and white cover most frames, with clear as an option.
Can you seal the gap between the frame and the plaster indoors?
Yes. Draughts often come through the inside gap too, so sealing both is often worthwhile.
Do I need to be at home?
It depends on the job. Inside work needs someone to give us access.
Do you take out the old sealant first?
Yes, every time. New silicone doesn’t stick to old silicone, so the joint is cleaned back first.
Can new window sealant be painted?
Silicone generally won’t take paint. If you plan to paint, tell us first and we can use a paintable sealant where it suits the joint.
Do you cover Hedge End?
Yes. From our base in Crawley, we cover South East England, London and all of Scotland, Hedge End included.
When it is not the sealant
Some problems need a builder, plumber or other trade rather than us:
- A sash or casement that will not close properly
- A frame that has rotted at the joint
- A failed sealed unit that has misted up
If you’re not sure, just ring 0345 464 0079 or drop us an email and we’ll give you a straight answer.
Joints and surfaces we work on
- Window sills
- Aluminium frames
- Timber windows & doors
- uPVC windows
- Composite doors
- Patio & French doors
Window mastic in Hedge End: local notes
Historic houses like South Stoneham House (about 3.5 miles north-west) are a reminder that the area around Hedge End has older buildings as well as new. In older buildings, older frames set in brick or stone need a sealant that suits them, and sometimes that is traditional sand mastic. Rainfall in the South East is lower than in much of the UK, though outdoor sealant still has to go onto a dry joint, so the forecast decides the day.
For site and facilities teams at buildings such as Shamblehurst Primary School, larger buildings have plenty of frames, and the mastic around each one ages. If you live in an older home near Church of St John the Evangelist, the joint between an old wall and a newer frame is generally the first place rain gets in. If you let a flat or house near Hedge End station, sound mastic around windows and doors keeps out the draughts and damp that tenants notice first.
Hedge End is about 4 miles east of Southampton, in Hampshire. Wherever you are in the SO30 postcode area, our applicators can take on window mastic. Across Hampshire, we cover 683 places, and Hedge End is one of them.
All of SO30 and SO31 is covered for window mastic. That includes homes and businesses on Lynton Road, Watts Road and Dean Court and the roads around them. With the A334 and B3033 close by, Hedge End is simple for us to get to for window mastic. Other places close to Hedge End include Thornhill (2 miles west), Harefield (2 miles west), West End (2 miles north-west), Chartwell Green (2 miles north-west) and Sholing (3 miles south-west). Within a short drive, we also cover Winchester (10 miles north), Gosport (10 miles south-east), Havant (14 miles east), Eastleigh (4 miles north-west), Fareham (6 miles south-east) and Horndean (13 miles east).
Near you in Hedge End
Locally, jobs take us to homes and businesses close to Wildern School and Wildern School and the streets around them. The nearest railway station is Hedge End station, about 1.2 miles north. Well-known places in the area include Netley Castle (3.6 miles south-west) and Bursledon Brickworks Industrial Museum (2 miles south). Open spaces near Hedge End include Netley Common.
How it works
You don’t need to clear the whole room or building before we come, only the area right around the joints. Everything nearby is protected, and the job takes a few hours for a handful of frames, longer for a whole house in most cases. For a job in Hedge End, we need access to where the work is and somewhere nearby to park. If the job is outside, mention gates, side access and anything above ground floor.
- First we look at every frame and agree the list.
- Next the failed sealant is cut away and the joint cleaned.
- 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.
Getting ready for the visit
- Tell us about any previous sealing or DIY attempts
- Tell us if parking is tricky
- Mention any leaks or damp you’ve noticed
Get a quote
To get a quote, phone 0345 464 0079 or email us with the location and a short description of the problem. You’ll have a clear quote before work begins.
Advice
Towns and villages near Hedge End
What else we do in Hedge End
Aftercare tips
No joint lasts for ever, but care makes a real difference. Our tips:
- Repaint timber before it’s bare
- Paint up to the joint, not over it
- Avoid blasting the frames with a pressure washer
- Check the mastic once a year
Clean the frames with mild soapy water, and avoid solvent cleaners on the sealant.
Look out for the warning signs: cracks in the mastic, gaps you can see light through, damp on the reveal or mould around the inside of the frame. Any of these is worth a call.