Hampshire · England

Window & door mastic in Little Somborne, Hampshire

We cover Little Somborne for mastic around window and door frames, sills and patio doors. Old material cut out, joints cleaned and sealed neatly.

  • Cold air getting in at the frame edge
  • Mastic that has split away from the wall
  • Mastic that is falling out in pieces

Window mastic near Little Somborne

Window mastic in Little Somborne, done properly

Every window and door frame has a gap around it, and mastic is what closes it. When it cracks, hardens or pulls away, draughts and rain get in. The old mastic is removed and the joint resealed with a flexible exterior sealant. Common call-outs are for white mastic on grey or black frames and rain getting in at the frame or under the sill, on timber windows & doors, patio & French doors and uPVC windows.

Somewhere as small as Little Somborne, older homes often have timber frames set in stone or brickwork. Older buildings like these don’t always suit modern silicone, and sometimes a traditional sand mastic is the better choice.

All of our work is guaranteed for twelve months, in Little Somborne and everywhere else we cover.

Outdoor mastic being applied where a white frame meets red brickwork, below the fascia and gutter
Where
Little Somborne (SO20)
Wider area
Hampshire
Cover
One year on every job
Price
A clear quote up front
Telephone
0345 464 0079
Updated
26 October 2026

Keeping the joints in good condition

To keep the joints looking good and working properly:

  • Keep drainage slots and sill grooves clear
  • Wipe condensation off the frames
  • Keep paint and stain on wooden frames in good order
  • Avoid blasting the frames with a pressure washer

Most silicone sealants won’t take paint, so mention any painting plans before work begins. We can use a paintable sealant where that matters.

Water trapped behind a failed joint can start rot in timber frames and sills. Rotten timber needs a joiner, not a sealant, so it pays to reseal before that happens.

Little Somborne homes and the weather

The South East is one of the drier parts of the UK, though outdoor sealant still has to go onto a dry joint, so the forecast decides the day.

If you live in an older home near All Saints Church, the windows may be timber, sash or later replacements, and each needs the right sealant against the wall. In and around Little Somborne, as anywhere, good window mastic starts with a clean, dry, properly prepared joint.

Little Somborne is about 6 miles west of Winchester, in Hampshire. Little Somborne gets the same service as everywhere we cover: the old material taken out, joints prepared properly and a 12-month guarantee. Our area takes in 683 places across Hampshire, large and small. We also work in Southampton, about 12 miles from Little Somborne.

Every address in SO20 is covered for window mastic. Window mastic is available to properties on Chalk Hill and Somborne Park Road and the roads around them. Neighbouring places we cover for window mastic include Up Somborne (1 mile east), Ashley (1 mile south), King's Somborne (2 miles south-west), Lower Slackstead (5 miles south) and Braishfield (5 miles south). We also work in nearby towns such as Winchester (6 miles east), Eastleigh (10 miles south-east), Andover (8 miles north), Totton (12 miles south), Chandler's Ford (8 miles south) and Hedge End (14 miles south-east).

Local landmarks in Little Somborne

Well-known places in the area include Royal Hampshire County Hospital (5.6 miles east).

Map of Little Somborne © OpenStreetMap contributors

Surface by surface

Patio & French doors

Door frames take knocks and movement every time the doors are used. A flexible sealant copes with that without cracking.

Composite doors

Front doors take the weather head on. We pay most attention there.

How it works

We keep the work tidy and contained to the joints we’re treating, so you can get on with your day. Expect the work to take a few hours for a handful of frames, longer for a whole house. For a village or hamlet like Little Somborne, the journey is planned in advance: let us know about lanes, gates and parking. We bring what the job needs, so it can be finished in one trip where possible.

  1. We check how each frame can be reached safely.
  2. All the failed sealant is cut away.
  3. Frame and wall are cleaned and must be dry before sealing, and primed where the sealant calls for it.
  4. Deep voids are backed, then the sealant is gunned in.
  5. We tool the joint so water runs off, then clear up.

Before we arrive

  • Plan for the work area to be out of bounds to pets and children
  • Mention any parking rules near the property
  • Mention any tricky access

Ask for a quote

Every job is quoted individually. Just call 0345 464 0079 or send us an email with the details and send photos if you have them.

Ask for a quote

Advice

For landlords and businesses

A neglected joint can let water reach the structure, which is a bigger problem in a rented property. Keeping joints in good order is simple maintenance.

Mouldy or split sealant often shows up at the end of a tenancy, and it’s quick to put right between tenancies. We can quote for more than one property at once.

Common questions in Little Somborne

Is Little Somborne within the area you cover?

Yes. Little Somborne is within the area we cover, which takes in towns, villages and rural addresses. Our work covers London and the South East. Let us know about access, parking and anything unusual about getting there when you book.

Is Little Somborne in your area for window mastic?

Yes, Little Somborne is within the area we cover. We work across London and the South East. You can ring 0345 464 0079 or send us an email and let us know what needs doing.

Is it worth trying it myself?

You can, for simple jobs. Preparation is everything: all the old sealant out, and a clean, dry joint. If it doesn’t work out, we can redo it.

Is the new sealant paintable?

Not if it’s silicone. Tell us your decorating plans and we’ll pick a sealant to suit.

Does the work come with a guarantee?

Yes. Our 12-month guarantee covers every job.

Can resealing stop a draught around my window?

Often, yes. The gap between frame and wall is a common source of draughts, and sealing the inside and outside joints closes that path.

Are you an approved applicator?

Yes. ARBOMaster is the approved applicator scheme for Arbo sealants, and we’re part of it.

Do the sealants smell?

Some sealants have a smell while they cure, which fades as it sets. Ventilation helps.

Why it’s worth doing now in Little Somborne

Not every sealant suits a window. Decorators’ caulk and bathroom silicone aren’t designed for outside joints that move. A low-modulus exterior sealant keeps its stretch through hot and cold weather. Where a wall is exposed, as many are in small places like Little Somborne, wind-driven rain gets into any failed joint, and damp in older walls is slow to dry out.

The cost reflects the work involved, not guesswork. That is why we ask about the job first.

Why Little Somborne clients choose us

  • Every job guaranteed for a year
  • 20+ years of sealant experience
  • Anti-fungal sanitary silicone in wet areas
  • A sealant colour to suit the surroundings

See our cost guide and customer reviews.

What we can’t put right

We will always be straight with you, so here’s what sealant can’t fix:

  • A failed sealed unit that has misted up
  • A door that needs adjusting, rehanging or new seals
  • Broken hinges, locks or handles

If you are not sure, just call 0345 464 0079 or send us an email and we will give you a straight answer before booking.

What we seal

  • Patio & French doors
  • Window sills
  • uPVC windows
  • Timber windows & doors
  • Aluminium frames
  • Composite doors

What affects the cost of window mastic

We quote each job individually. These are the things that affect it:

  • Which sealant suits the joint
  • Whether the work is at height
  • Whether old sealant or filler has to be cut out
  • How many areas need sealing

Combining jobs into one visit is generally more efficient than separate visits, so tell us about everything that needs sealing. You will get one clear quote for the whole job.

What we need to know

To make quoting easier, let us know:

  • The problem you’ve noticed
  • How many joints, rooms or windows are involved
  • Any previous sealing or DIY work
  • Where the job is, and your postcode

It all starts with a short chat. Tell us what’s wrong, where it is and how much there is. When it suits you, phone 0345 464 0079 or send us an email.

20+ yearsMastic and sealant specialists
ARBOMaster approvedApproved applicator for Arbo sealants
Fully insuredDomestic, commercial and hotels
One-year guaranteeOn every job