Hampshire · England
Window Mastic in King's Somborne
Our applicators work in King's Somborne on mastic around window and door frames, sills and patio doors. Old sealant removed completely, joints prepared properly and every job guaranteed for a year.
- White mastic on grey or black frames
- Cracked or shrunken mastic around the frame
- Whistling draughts around closed windows
About our window mastic in King's Somborne
A cold draught around a closed window often comes from the frame edge. Resealing that joint can make a room feel noticeably less draughty and quietens the whistle on windy days. Where the air is getting in through the window itself, we’ll say so. If you’re dealing with a bead that doesn’t match the frame and leaking joints at the ends of sills, we can put it right, whatever the surface.
Around King's Somborne, many homes face open ground, so their windows and doors take the full weather. Exposed frames and sills lose their mastic sooner than sheltered ones.
Our work is backed for twelve months, in King's Somborne and everywhere else we cover.
- Location
- King's Somborne (SO20)
- Region
- Hampshire
- Guarantee
- A year, on every job
- Price
- A clear quote up front
- Phone
- 0345 464 0079
- Updated
- 26 October 2026
What we do, step by step
We bring everything the job needs with us. Once we’ve agreed what’s being done, the area is protected and the work begins. Most jobs take most of a day for a typical house, less for a few frames. Somewhere as small as King's Somborne, access is often the only tricky part. If the job is outside, mention outbuildings, exposed walls and how to reach them.
- We check each frame and agree which ones need doing.
- 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.
Preparing for the visit
- Mention if the joints have been sealed before
- Keep children and pets away from the work area
- For indoor joints, keep the area dry beforehand if you can
Get a quote
To get a quote, call 0345 464 0079 or email us and tell us where the job is and what the problem looks like. You’ll have a clear quote before we start.
Advice
Your questions about window mastic in King's Somborne
Do you cover King's Somborne for window mastic?
Yes, King's Somborne is within the area we cover. Our work covers London and the South East. You can call 0345 464 0079 or email us and let us know what needs doing.
Do you work for landlords with property near Mottisfont & Dunbridge station?
Yes, landlords and agents are among the people we work for, and several properties can be quoted together. You can ring 0345 464 0079 or drop us an email with the details for a clear quote.
How do I get a quote for window mastic in King's Somborne?
It depends on the job, so we quote each one individually. For a quick quote, call 0345 464 0079 or send us an email and tell us what needs doing and where.
Can resealing stop a draught around my window?
Yes, where the draught is at the frame edge. We find where the air is coming from before we reseal.
Is it worth trying it myself?
It depends on the job. Work at height, movement joints, fire-rated gaps and large areas are best left to a professional.
Will there be a smell?
Sometimes, a little. Any smell clears as the sealant cures.
Will it make a mess?
Tidy work is part of the job. We protect what’s around the joints.
Where are you based?
We’re based in Crawley, West Sussex, and we work across South East England, London and Scotland.
Can I do it myself?
Not every job suits DIY: high-level joints, fire-rated gaps, external movement joints and big jobs need the right product, the right access and the right method.
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.
What we cannot put right
A few problems are outside what sealant work can do:
- Condensation trapped between the panes
- Rotten timber, which needs a joiner first
- A sash or casement that won’t close properly
If you’re not sure, just call 0345 464 0079 or email us and we’ll give you a straight answer before booking.
Where we work in King's Somborne
- Patio & French doors
- Composite doors
- Window sills
- Aluminium frames
- Timber windows & doors
- uPVC windows
When to call us in King's Somborne
Sun, frost and rain wear sealant out. Sunlight dries the surface out, and over the years it loses its give, cracks and comes away.
The problems people usually mention when they call include:
- Draughty joints inside around the window
- White mastic on grey or black frames
- Water coming in at the bottom corners of a door
- Whistling draughts around closed windows
For site and facilities teams at buildings such as King's Somborne Church of England Primary School, the mastic around its windows and doors needs looking after like any other building’s.
Questions to ask before booking
- What the quote includes, VAT included or not
- When the joint can take water or movement
- What product goes in the joint
- The length of the guarantee
Window mastic in King's Somborne: local notes
With historic houses such as Mottisfont Abbey (about 3.2 miles south-west) nearby, there’s older building stock in the area around King's Somborne as well as newer homes. Where a home is older, older timber frames in brick or stone need a different approach from a modern uPVC window. London and the South East are among the drier parts of the UK, yet outdoor joints still have to be sealed dry, so jobs are booked with the weather in mind.
For landlords with property near Mottisfont & Dunbridge station, sound mastic around windows and doors keeps out the draughts and damp that tenants notice first. In the older streets around Church of St Peter and St Paul, the joint between an old wall and a newer frame is normally the first place rain gets in.
King's Somborne is about 6 miles north of Romsey, in Hampshire. Across the SO20 area, we can carry out window mastic at your property. King's Somborne is one of 683 towns and villages in Hampshire we cover for window mastic. You can also see our page for Southampton, roughly 12 miles from King's Somborne.
We work across SO20 for window mastic. You’ll find streets such as Church Road, Old Palace Farm and Forge Close, all of which we cover. King's Somborne sits on or near the A3057, which makes travel easy. Neighbouring places we cover for window mastic include Ashley (1 mile east), Little Somborne (2 miles north-east), Up Somborne (2 miles north-east), Braishfield (4 miles south) and Lower Slackstead (4 miles south-east). We also work in nearby towns such as Winchester (7 miles east), Eastleigh (10 miles south-east), Andover (9 miles north), Totton (11 miles south), Chandler's Ford (8 miles south-east) and Hedge End (14 miles south-east).
Near you in King's Somborne
We work in homes and buildings around The Crown Public House, among other places. The nearest railway station is Mottisfont & Dunbridge station, roughly 4 miles south-west. A little further out are Romsey Community Hospital (5.8 miles south).
For landlords and businesses
We regularly work with letting and managing agents. Send the address, what’s needed and the access arrangements and we will quote.
We work for landlords and agents as well as householders. Resealing between tenancies keeps a property looking cared for before the next move-in.
Different surfaces, different methods
Window sills
Masonry sills can have joints where water gets in, and the joint under the frame can let rain run behind. We seal those with a sealant suited to masonry.
Patio & French doors
Water at the foot of a door frame isn’t always the mastic: worn seals, blocked drainage slots or a poor threshold detail can be the cause. We look for the cause first.
How to look after the new joints
Good habits help new joints last longer. Our tips:
- Air rooms to keep condensation down around windows
- Keep jet washers away from the mastic
- Keep timber frames painted
- Paint up to the joint, not over it
Clean the frames with mild soapy water, and avoid solvent cleaners on the sealant.
Leaks generally show up in wet, windy weather, but sealant goes on best when frames and walls are dry. Sorting cracked mastic early means the joint is sound before the bad weather.