Hampshire · England

Sand mastic for sash & case windows in Itchen Stoke, Hampshire

Specialist sand mastic for Itchen Stoke: careful preparation, the right product and tidy work. Call for a quick quote.

  • Gaps between timber frames and stone or brick
  • Gaps round a timber door in stone or brick
  • Patchy fillers round a sash window

Sand mastic for Itchen Stoke homes and businesses

Sand mastic in Itchen Stoke

Traditional burnt sand mastic that sits naturally against stone and brick. It suits period and listed homes where a modern sealant bead would stand out. Typical jobs include old sand mastic that has cracked, crumbled or fallen out and wind and rain getting in round a sash window, on sash and case windows, timber door frames and stone surrounds.

Homes in small places like Itchen Stoke often stand in the open, with little to shelter their windows from wind and rain. That exposure dries out and cracks the mastic around frames and sills faster.

There’s a 12-month guarantee on every job, large or small.

Location
Itchen Stoke (SO24)
Region
Hampshire
Cover
A year, on every job
Price
Quoted before any work starts
Phone
0345 464 0079
Page updated
26 October 2026
Mr Mastic applicator sealing the top of a white uPVC door frame on a red-brick house

Leave it or put it right?

Filling over old, loose mastic doesn’t last. Raking out and preparing the joint gives it a sound base so the new mastic stays put. Around Itchen Stoke, older homes often have timber in their floors and frames, and water through a failed joint can rot timber if it’s left.

There are no prices on our website, because the cost depends so much on the job itself. Call for a quick quote.

Why Itchen Stoke customers choose us

  • Arbo and Everbuild products
  • 12-month guarantee on every job
  • Anti-fungal silicone where joints get wet
  • 20+ years of sealant experience

Read how sealant jobs are priced and what customers say.

When something else is needed

Sealant isn’t the answer to every problem, and we’ll tell you before any work starts. Sealant won’t put right:

  • Decisions on consent for listed homes
  • Sash cords, weights and draught-proofing of the sashes
  • Rotten sashes, sills or window boxes (a joiner’s job)

If you’re not sure, just ring 0345 464 0079 or email us and we will give you a straight answer before booking.

Joints and surfaces we work on

  • Period & listed homes
  • Timber door frames
  • Brick reveals
  • Tenement windows
  • Sash and case windows
  • Stone surrounds

For landlords and businesses

We regularly work with letting and managing agents. Tell us the address, the job and how access works and we’ll quote.

Businesses can book us for washrooms, kitchens, offices and more. On commercial sites, working times can be discussed when we quote.

Looking after it afterwards

So the new joints stay in good condition:

  • Ask us before painting near the mastic
  • Get any rot dealt with first
  • Go gently near the mastic when preparing windows
  • Keep sills and gutters clear so water drains away

Don’t touch or press the mastic while it hardens. It forms a skin fairly soon, but takes longer to harden fully.

An open joint round the box lets weather through. The longer it’s left, the more the joint opens.

Surface by surface

Stone surrounds

The stone is treated with care when the old mastic comes out.

Period and listed homes

A traditional finish suits a period property.

Should I try it myself first?

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.

If you’ve already had a go yourself, that’s fine. We cut it out and start again.

Frames and glazing around Itchen Stoke

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. Historic houses like Hinton Ampner House (about 4 miles south-east) are a reminder that the area around Itchen Stoke has older buildings as well as new. Where a home is older, older frames set in brick or stone need a sealant that suits them, and sometimes that is traditional sand mastic.

If you live in an older home near St Mary's Church, the joint between an old wall and a newer frame is normally the first place rain gets in. Managing a site like Perins School? Then its window and door frames need their mastic kept sound, just like a home’s.

Itchen Stoke is about 5 miles north-east of Winchester, in Hampshire. Jobs in Itchen Stoke get the same care as everywhere else we work: old sealant removed completely, careful preparation and a one-year guarantee. Itchen Stoke is one of 683 places in Hampshire we cover. We also work in Southampton, about 14 miles from Itchen Stoke.

Work in SO24 works the same way as everywhere else we cover. Being close to the B3047, Itchen Stoke is simple for us to get to for sand mastic. If you’re just outside Itchen Stoke, we cover Ovington (1 mile south-east), Itchen Abbas (1 mile west), Martyr Worthy (2 miles west), Temple Valley (3 miles south-west) and Easton (3 miles west). We also work in nearby towns such as Basingstoke (13 miles north), Winchester (5 miles south-west), Eastleigh (10 miles south-west), Andover (15 miles north-west), Horndean (15 miles south-east) and Chandler's Ford (11 miles south-west).

Landmarks near Itchen Stoke

Typical jobs here are in homes near The Bush Inn, among other places. A little further out are St John's Rooms And Chapel (4.7 miles south-west) and Wolvesey Castle (4.8 miles south-west). Green spaces nearby include Twyford Down and Winnall Moors.

Map of Itchen Stoke © OpenStreetMap contributors

How the visit works

When we arrive, we start by going over the job with you, so you know exactly what we’re doing. Surfaces next to the work are protected before we start. Most jobs take a few hours per window, depending on the condition of the joints. In a small place like Itchen Stoke, access is usually the main thing to plan. For outside work, also let us know about exposed walls and any outbuildings involved.

  1. First, we look at the surrounds with you and agree what needs doing.
  2. The loose and crumbling mastic is raked out and the joint cleaned.
  3. Deep voids are packed so the mastic is the right thickness.
  4. Sand mastic is mixed and applied by hand, then shaped to the joint.
  5. The mastic is finished to sit tidily against the stone or brick.

Preparing for the visit

  • Move anything stored near the joints
  • On commercial sites, let us know about site rules
  • Tell us about any water getting in

Get a quote

There’s no standard price list, because every job is different. Instead, your job gets its own clear quote. To arrange one, ring 0345 464 0079 or send us an email.

Get a quick quote

Related advice

FAQs for Itchen Stoke

Is Itchen Stoke in your area for sand mastic?

Yes. We work across London and the South East, and Itchen Stoke is part of that. Just ring 0345 464 0079 or email us with a few details of the job, and we’ll send you a clear quote.

Will you come out to Itchen Stoke?

Yes, Itchen Stoke is covered. We work across London and the South East, from towns to the smallest places. Longer journeys are simply planned in advance.

Which is right for my windows, sand mastic or modern sealant?

That depends on your windows. Period windows in stone or brick generally suit sand mastic and newer frames usually get a flexible sealant.

Can tenants book the work?

Of course. Check with your landlord; we can send the quote to them too.

Can I add another job to the visit?

Yes, and it often makes sense. Doing several areas at once is usually more efficient.

Do you have insurance?

Yes. Full insurance covers our work.

Can you match the sealant colour?

Most of the time, yes. We will explain which colours are available.

Does someone need to be in?

That depends on where the joints are. For work indoors, someone needs to let us in, while outside work can sometimes be arranged differently.

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