Hampshire · England

Westley Sand Mastic

Traditional burnt sand mastic around sash and case windows and doors in stone and brick for Westley, backed by a one-year guarantee. Call for a quick quote.

  • Mastic round period door frames that has failed
  • Mastic that needs renewing before redecorating
  • Mastic worn away on windows facing the weather

Trusted sand mastic in Westley

Sand mastic in Westley, done properly

Our applicators renew the sand mastic around sash and case windows and doors set in stone or brick. The old mastic is raked out, and new mastic is applied and shaped by hand. Common call-outs are for silicone on a period window that looks wrong and crumbling sand mastic round a window, on stone surrounds, timber door frames and tenement windows.

Around Westley, 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.

Every job comes with a one-year guarantee.

Place
Westley (SO21)
Region
Hampshire
Cover
12 months on all our work
Price
Quoted before any work starts
Telephone
0345 464 0079
Updated
26 October 2026
Outdoor mastic being applied where a white frame meets red brickwork, below the fascia and gutter

Different surfaces, different methods

Period and listed homes

Period homes look their best with traditional materials.

Stone surrounds

Stone openings are rarely perfectly straight, so the gap isn’t the same all the way round. Sand mastic is shaped by hand to suit.

Keeping the joints in good condition

How long the joints last depends on use and care. We suggest:

  • Avoid patching sand mastic with silicone
  • Leave the new mastic unpainted
  • Have rotten timber repaired before new mastic goes in
  • Plan mastic work ahead of painting

Make sure water drains away from the window surround. Water sitting against the mastic shortens its life.

Gaps round a sash box let in draughts and rain. Left, the gap tends to get bigger as more mastic falls out.

How it works

We bring everything the job needs with us. Once we have agreed what’s being done, we protect the area and start. It normally takes a few hours per window, depending on the condition of the joints. Somewhere as small as Westley, access is often the only tricky part. For outside work, also let us know about exposed walls and any outbuildings involved.

  1. We start by checking each surround and agreeing the joints to renew.
  2. Old, loose mastic is raked out and the joint cleaned.
  3. Deep voids are packed so the mastic is the right thickness.
  4. The mastic is mixed, pressed into the joint by hand and shaped.
  5. The finish is dressed so it sits neatly against the stone or brick.

Before we arrive

  • Where the joints are inside, avoid wetting them before we arrive
  • Let us know about earlier repairs to the joints
  • Clear items away from the joints we’re working on

Ask for a quote

Want a quote for sand mastic? Please call 0345 464 0079 or email us with a few details. We’ll explain what we’d do and give you a clear quote before any work starts.

Ask for a quote

Related advice

Common questions in Westley

Can you help a landlord with a rental near Winchester station?

Yes, we work for letting agents and landlords. Just call 0345 464 0079 or email us and tell us about the property, and we will give you a clear quote.

Will you come out to Westley?

Yes, we do. We work across London and the South East, and smaller places are part of that. Longer journeys are simply planned in advance.

Is it messy?

Not at all. We work neatly, protect the area around the joints and tidy up afterwards.

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

It depends on the window. Period windows in stone or brick generally suit sand mastic and newer frames generally get a flexible sealant.

Can you replace silicone on a period window with sand mastic?

Yes. We remove the silicone and clean the joint before the sand mastic goes in.

Is there any odour?

Possibly a little. It fades as the sealant cures, and ventilation helps.

Is the work guaranteed?

Every job comes with our 12-month guarantee, and we are fully insured.

What is sand mastic?

Sand mastic is a traditional material for pointing round windows and doors. It combines sand with a linseed-oil-based binder.

What affects the quote in Westley

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

  • The old material and how stubborn it is
  • The size of the job
  • The product the joint needs
  • Whether the work is at height

The cost depends on the size of the job, how hard the old material is to remove and how easy the joints are to reach. We give a clear quote before work begins, so you know where you stand.

Helping us quote

There’s no need for technical detail. Just tell us:

  • Whether it’s a home or a business
  • The rough size of the job
  • The address or postcode of the job
  • If someone has resealed it before

We quote each job on its own, so the first step is telling us about yours. Just phone 0345 464 0079 or email us with the details.

Signs you need sand mastic in Westley

Shallow joints are a common cause. A thin layer doesn’t hold well so we make sure the new mastic is the right thickness.

Any of these means the joints need attention:

  • Cracked mastic round a front door frame
  • Crumbling sand mastic round a window
  • Wind and rain getting in round a sash window
  • Silicone on a period window that looks wrong

If you live in an older home near Church of St Stephen, replacement windows fitted into old openings often leave uneven gaps that need backing and a flexible joint.

What to look for in a quote

  • Whether they’re fully insured
  • Whether all the old sealant comes out first
  • How much experience the applicator has
  • What the quote includes, VAT included or not

How to choose a mastic man

What happens if it’s left?

Filling over old, loose mastic doesn’t last. Raking out and preparing the joint gives it a sound base so the new work lasts. In a small place like Westley, homes can be exposed to wind and rain, which finds any gap, and damp in older walls is slow to dry out.

Some things make a job bigger or smaller: how much old sealant there is and how stubborn it is, any mould to treat, and whether the work is at height. We take all of that into account in your quote.

Why us?

  • Domestic, commercial and hotel work
  • Tidy, careful work
  • A 12-month guarantee on all work
  • 4.9 on Google from 180+ five-star reviews

Take a look at how sealant jobs are priced and our reviews.

Sand mastic in Westley: local notes

Compared with the north and west, the South East gets less rain, yet outdoor joints still have to be sealed dry, so jobs are booked with the weather in mind.

For site and facilities teams at buildings such as Sparsholt Church of England Primary School, its window and door frames need their mastic kept sound, just like a home’s. Rented homes near Winchester station change hands often, and any sash windows need sound mastic to keep draughts and rain out.

Westley is about 4 miles north-west of Winchester, in Hampshire. Homes, rented property, offices and hotels in Westley can book us for sand mastic. Every job comes with our one-year guarantee. Across Hampshire, we cover 683 places, Westley among them. You can also see our page for Southampton, roughly 12 miles from Westley.

Here we cover the SO21 postcode area for sand mastic. That includes homes and businesses on Hillside Road, Library Lane and Chute Hill and the roads around them. Close by, we work in Sparsholt (1 mile south-east), Littleton (2 miles east), Harestock (3 miles east), Weeke (3 miles east) and Oliver's Battery (3 miles south-east). We also work in nearby towns such as Winchester (4 miles south-east), Eastleigh (8 miles south), Andover (9 miles north-west), Totton (13 miles south-west), Chandler's Ford (7 miles south) and Hedge End (12 miles south).

Around Westley

Around Westley, our work takes us to homes and buildings near The Plough Inn, among other places. The closest station to Westley is Winchester station, roughly 3.4 miles east. Other landmarks nearby include Winchester Castle (3.5 miles south-east) and Balfour Museum of Hampshire Red Cross History (2.8 miles south-east). Open spaces near Westley include Winnall Moors.

Map of Westley © OpenStreetMap contributors

What sealant work can’t fix

A few problems are outside what sealant work can do:

  • Cracked or broken glass
  • Masonry that needs repairing
  • Decisions on consent for listed homes

If in doubt, ring 0345 464 0079 or email us and we’ll say what we think before booking.

Joints and surfaces we work on

  • Period & listed homes
  • Tenement windows
  • Stone surrounds
  • Sash and case windows
  • Brick reveals
  • Timber door frames
20+ yearsMastic and sealant specialists
ARBOMaster approvedApproved applicator for Arbo sealants
Fully insuredDomestic, commercial and hotels
One-year guaranteeOn every job