Hampshire · England

Sand mastic for sash & case windows in West End, Hampshire

Traditional burnt sand mastic around sash and case windows and doors in stone and brick for householders, landlords and businesses in West End. Fully insured, ARBOMaster approved and guaranteed for a year.

  • Modern sealant on a period surround
  • Gaps between timber frames and stone or brick
  • Mastic that needs renewing before redecorating

Trusted sand mastic in West End

Sand mastic in West End, done properly

Across West End, we renew sand mastic around sash and case windows. Each joint is raked out, prepared and pointed by hand, finished to suit the masonry. We work on period & listed homes, stone surrounds and sash and case windows, and common reasons people get in touch are a silicone bead on a sash window that spoils the look and gaps between timber frames and stone or brick.

Houses in smaller places like West End can stand more in the open than those in a built-up town. That’s hard on the mastic around frames and sills.

Whatever the size of the job, you get the same one-year guarantee.

Where
West End (SO30, SO18)
Region
Hampshire
Guarantee
One year on every job
Price
A clear price before we start
Phone
0345 464 0079
Page updated
26 October 2026
Outdoor mastic being applied where a white frame meets red brickwork, below the fascia and gutter

What affects the quote in West End

For a quick quote, just ask. What matters most is:

  • Mould in or behind the old joints
  • Access and height
  • Any working-time requirements on site
  • The number of rooms or windows

What it costs depends on the size of the job, how hard the old material is to remove and how easy the joints are to reach. You’ll have a clear quote before any work starts.

What we need to know

A few details help us give you an accurate quote. When you ask for a quote, tell us:

  • Roughly how big the job is
  • Any previous sealing or DIY work
  • Where the job is, and your postcode
  • How we’d reach the joints

Call for a quick quote, or email us if that is easier. Tell us about the joints that need doing and we’ll explain what’s involved.

Common questions in West End

Can you do sand mastic in West End?

Yes, West End is within the area we cover. We work across London and the South East. You can call 0345 464 0079 or drop us an email and let us know what needs doing, and we’ll give you a clear quote.

Will you come out to West End?

Yes, we do. Our work covers London and the South East, from towns to the smallest places. Longer journeys are simply planned in advance.

Do the sealants smell?

That depends on the sealant. Some products have a noticeable smell, others very little, and any smell fades as they cure.

Can you match the sealant colour?

In most cases you can choose. We will explain which colours are available and agree one before any work starts.

Do you work for letting agents?

Yes. Domestic, commercial and hotel work are all part of what we do.

Should I try DIY first?

That depends on the joint. Work at height, movement joints, fire-rated gaps and large areas are best left to a professional.

What do you need from me for a quote?

Just the basics: where it is, what you’ve noticed and how we reach it. Then ring 0345 464 0079 or drop us an email.

Are you insured?

Yes. We’re fully insured.

What sand mastic looks like in West End

With historic houses such as South Stoneham House (about 1.7 miles west) nearby, there’s older building stock in the area around West End as well as newer homes. In older buildings, older timber frames in brick or stone need a different approach from a modern uPVC window. 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.

Rented homes near Southampton Airport Parkway station change hands often, and any sash windows need sound mastic to keep draughts and rain out. For an older house near a landmark such as Church of St James, the joint between an old wall and a newer frame is usually the first place rain gets in.

West End is about 2 miles east of Southampton, in Hampshire. Jobs in West End get the same care as everywhere else we work: the old material taken out, joints prepared properly and a 12-month guarantee. West End is one of 683 towns and villages in Hampshire where we work.

Work in SO30 and SO18 works the same way as everywhere else we cover. Sand mastic is available to properties on High Street, Hatch Mead and Glenlea Close and the roads around them. We also cover Chartwell Green (1 mile west), Harefield (1 mile south), Townhill Park (1 mile west), Midanbury (1 mile west) and Mansbridge (1 mile north-west). Larger places within reach include Winchester (9 miles north), Gosport (12 miles south-east), Eastleigh (3 miles north), Fareham (8 miles south-east), Horndean (14 miles east) and Totton (7 miles west).

Around West End

Locally, jobs take us to homes and businesses close to Itchen Valley Country Park, Woodlands Community College and The Gregg School, among other places. The nearest railway station is Southampton Airport Parkway station, about 1.8 miles north-west. Well-known places in the area include Netley Castle (3.7 miles south) and Marlands Shopping Centre (3.3 miles south-west). The countryside around West End includes Netley Common.

Map of West End © OpenStreetMap contributors

How the visit works

At the end, we look at the finished work together and tell you how long to leave it. The work normally takes anything from a few hours to a full day, depending on how many windows, depending on the size of the job. A visit to West End is planned like any other: the time, the access and where to park are agreed in advance. If the work is outside, the weather plays a part, as sealant needs a dry surface.

  1. We check each window surround and the condition of the joint.
  2. The joint is raked out and cleaned.
  3. Large voids are packed out.
  4. We point the joint with sand mastic by hand.
  5. The finish is dressed neatly.

Before we arrive

  • Tell us if parking is tricky
  • Clear items away from the joints we are working on
  • Let us know about earlier repairs to the joints

Ask for a quote

Need a quote? Please call 0345 464 0079 or email us with a few details. You’ll know what we plan to do, and what it will cost, before any work begins.

Ask for a quote

Read more

Landlords, agents and businesses in West End

If you manage several properties in or around West End, several properties can go on one quote. Just tell us the addresses and what each one needs.

Failed sealant is one of the commonest items on a check-out report. We can quote for more than one property at once.

When to call us in West End

Sand mastic slowly weathers. It hardens, cracks and starts to come away from the frame or the masonry.

It’s worth asking for a quote if you see:

  • Window mastic to renew ahead of painting
  • Mastic dropping out of the joint
  • Open joints round the window box
  • Mastic worn away on windows facing the weather

Managing a site like Saint James' Church of England Primary School? Then its window and door frames need their mastic kept sound, just like a home’s.

Comparing quotes

  • The length of the guarantee
  • Whether the sealant suits the joint
  • What happens if the job turns out different
  • Are they insured?

Choosing a sealant specialist

Looking after it afterwards

How long the joints last depends on use and care. Here’s what we suggest:

  • Keep modern sealant off the mastic
  • Plan mastic work ahead of painting
  • Leave the new mastic unpainted
  • Avoid heavy scraping on the mastic joint

Check the mastic when you check the paintwork. Catching cracks early keeps repairs small.

Fine cracks show the mastic is starting to fail. Renewing it then is simpler than waiting until it falls out.

Should I try it myself first?

The biggest DIY mistake is sealing over old sealant. New silicone will not bond to old, so it peels away and traps moisture behind it. Everything old must be removed first.

Overfilling a joint is a classic DIY mistake. A thick, smeared bead looks untidy and does not move well, and getting the depth right matters as much as the look.

Different surfaces, different methods

Brick reveals

An open joint at a brick reveal lets weather in. New mastic seals the gap.

Timber door frames

Doors face weather and wear, so their mastic can fail sooner. It’s renewed by hand.

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