Hampshire · England
Window Mastic in Nether Wallop
Mastic around window and door frames, sills and patio doors for homes and businesses in Nether Wallop and across Hampshire. Fully insured, ARBOMaster approved and guaranteed for a year.
- Gaps left after new windows were fitted
- Draughts coming in around windows and doors
- Leaking joints at the ends of sills
Questions from Nether Wallop
Do you cover Nether Wallop for window mastic?
Yes, Nether Wallop is within the area we cover. We work across London and the South East. Just call 0345 464 0079 or email us with a few details of the job, and we’ll give you a clear quote.
Do you work for landlords with property near Grateley station?
Yes, landlords and agents are among the people we work for. Just call 0345 464 0079 or send us an email with the address and what needs doing, and we will give you a clear quote.
Are you an approved applicator?
Yes. We are an ARBOMaster approved applicator, the approved applicator scheme for Arbo sealants.
Do you have insurance?
Yes. We’re fully insured, and we can confirm the details when we quote.
Do I need to be at home?
If the work is inside, we need someone to let us in. After that, you can carry on with your day.
Can I add another job to the visit?
Yes. Just list everything you need and we’ll quote it together.
Do you seal inside as well as outside?
Yes. The outside joint keeps the weather out, and the inside joint stops draughts and finishes the reveal. We can do either or both.
How do I get a quote for window mastic in Nether Wallop?
We don’t publish prices, because the cost 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.
Window mastic in Nether Wallop, done properly
Colour matters on a frame. White, brown, anthracite grey, black and clear sealants are all available, so the bead blends with the window rather than framing it. We work on timber windows & doors, patio & French doors and uPVC windows, and the jobs we see most are draughts coming in around windows and doors and cracked internal joints between frame and plaster.
Outdoor sealant needs dry, clean surfaces, so work on frames around Nether Wallop is planned for dry weather. Let us know about access to all the frames, upstairs ones included.
You are covered for a year from the day we finish. If there’s a problem with it, please phone 0345 464 0079 or email us.
- Place
- Nether Wallop (SO20)
- Wider area
- Hampshire
- Cover
- 12 months on all our work
- Quote
- A clear price before we start
- Telephone
- 0345 464 0079
- Last updated
- 26 October 2026
Looking after it afterwards
So the new joints stay in good condition:
- Air rooms to keep condensation down around windows
- Look round the frames every year or so
- Do not aim a pressure washer at the joints
- Repaint timber before it’s bare
Timber frames need their paint kept up, because bare, wet timber moves more and pulls at the joint. Keep paint off the silicone itself.
Signs to watch for: 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.
Also near Nether Wallop
More services for Nether Wallop
Window mastic in Nether Wallop: local notes
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.
Letting a property close to Grateley station? Then sound mastic around windows and doors keeps out the draughts and damp that tenants notice first. In the older streets around Church of St Andrew, frames set in older brick or stone need a sealant that suits the wall as well as the frame.
Nether Wallop is about 7 miles south-west of Andover, in Hampshire. Whether you’re in the middle of Nether Wallop or further out, we cover window mastic for every kind of property. Nether Wallop is one of 683 towns and villages in Hampshire we cover for window mastic. There’s also a page for Southampton, roughly 16 miles from Nether Wallop.
Work in SO20 is quoted and booked the same way as anywhere else. We cover properties on Church Road, High Street and Church Hill and the roads around them. If you’re just outside Nether Wallop, we cover Middle Wallop (1 mile north-west), Over Wallop (2 miles north-west), Kentsboro (2 miles north), Red Rice (4 miles north-east) and Fox (4 miles north). Further out, we also cover Winchester (12 miles south-east), Eastleigh (15 miles south-east), Andover (7 miles north-east), Totton (15 miles south), Chandler's Ford (13 miles south-east) and Romsey (10 miles south).
What’s near Nether Wallop
We work in homes and buildings around The Old Butchers Arms, among other places. Nether Wallop’s nearest station is Grateley station, about 3.8 miles north-west of the centre. Not far away are Boscombe Down East.
What happens on the day
We bring everything the job needs with us, so you do not need to buy or prepare anything. After a quick look at the joints together, the area is protected and the work begins. It normally takes a morning for a couple of windows and a door. Somewhere as small as Nether Wallop, access is often the only tricky part. For outside work, also let us know about exposed walls and any outbuildings involved.
- Each frame is looked over and we agree which ones need resealing.
- We remove the old mastic and clean the frame edge and wall.
- Deep gaps get closed-cell backing rod to set the depth.
- 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
- For business premises, tell us about site rules or sign-in
- Clear items away from the joints we’re working on
- Mention any parking rules near the property
Getting a quote
Quotes start with a quick conversation. Tell us what’s wrong, where it is and how much there is, and we’ll talk you through what we’d do. Whenever you are ready, call 0345 464 0079 or email us.
Advice
Landlords, agents and businesses in Nether Wallop
Landlords and letting agents in Nether Wallop can book us as well as homeowners. Sealant work between tenants keeps a property looking cared for before the next move-in.
For anyone letting property in or around Nether Wallop, jobs at different addresses can go on one quote. Just tell us the addresses and what each one needs.
Signs you need window mastic in Nether Wallop
Sun, frost and rain wear sealant out. UV light hardens the outside of the bead, and over the years it loses its give, cracks and comes away.
Look out for these signs:
- Cold air getting in at the frame edge
- Leaking joints at the ends of sills
- Sealant in the wrong colour for the frame
- Cracked internal joints between frame and plaster
Managing a site like Wallop Primary School? Then the mastic around its windows and doors needs looking after like any other building’s.
What your quote should include
- How the surfaces are prepared before sealing
- How long to leave it before use
- What insurance they hold
- What guarantee comes with the work
What affects the quote in Nether Wallop
Every job gets its own quote. This is what makes a difference:
- The old material and how stubborn it is
- The product the joint needs
- Whether the work is at height
- Working hours on commercial sites
Doing several joints on one visit is usually more efficient than separate visits. We will send you a clear quote for the lot.
What we need to know
To make quoting easier, let us know:
- Any access issues, like height or stairs
- What the problem is, such as mould, gaps, leaks or cracking
- Photos by email, if that’s easy
- If it’s domestic, commercial or a hotel
Asking for a quote is easy: let us know what needs doing and where. A few photos by email make the job easier to understand.
Why act early in Nether Wallop
The work is quick compared with the damage it prevents: it takes a few hours for a few frames, or a day or more for a whole house. Wait for damp to appear and there may be plaster and decorating to sort out too. Around Nether Wallop, older homes often have timber in their floors and frames, where water from a failed joint can cause rot if it’s left.
Every job is a little different, so we quote each one individually. The number of joints, how easy they are to reach and the sealant needed all make a difference.
Why Nether Wallop customers choose us
- White, clear, grey or coloured to suit, where the product allows
- Sanitary silicone with an anti-fungal additive in wet areas
- Quality sealants from Arbo and Everbuild
- Over 20 years’ experience
Read what affects the cost and customer reviews.
DIY versus a professional finish
Some sealant jobs are within reach of a careful DIYer, 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.
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.