Hampshire · England

Sand mastic for sash & case windows in Weyhill, Hampshire

Traditional burnt sand mastic around sash and case windows and doors in stone and brick in Weyhill, with a 12-month guarantee on every job. Ask us for a quote.

  • Mastic round period door frames that has failed
  • Old sand mastic that has cracked, crumbled or fallen out
  • Window mastic to renew ahead of painting

Sand mastic in Weyhill

About our sand mastic in Weyhill

Old sand mastic cracks, crumbles and falls out over time and gaps open up round the frame. Renewing it closes the gap so the surround looks right again. If you’re dealing with mastic dropping out of the joint and cracked mastic round a front door frame, we can put it right.

Around Weyhill, 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.

You get a 12-month guarantee, the same in Weyhill as everywhere else we work.

Outdoor mastic being applied where a white frame meets red brickwork, below the fascia and gutter
Where
Weyhill (SP11)
Wider area
Hampshire
Guarantee
12 months on all our work
Quotes
A clear quote up front
Telephone
0345 464 0079
Page updated
26 October 2026

How to look after the new joints

After the cure time, these simple habits help:

  • Avoid patching sand mastic with silicone
  • Plan mastic work ahead of painting
  • Clear gutters so water does not pour onto the windows
  • Take care around the mastic when scraping paint

Do not run silicone over the new mastic. If you see a crack, ask us to take a look rather than patching it.

Crumbling mastic lets rain into the joint. It can soak into the frame and the surrounding masonry so early renewal protects both.

What happens on the day

Our applicators work methodically: protect, prepare, seal, tidy. Typically it takes a few hours per window, depending on the condition of the joints. Somewhere like Weyhill needs a little journey planning: let us know about lanes, gates and parking. Everything for the job comes with us, so a second trip is avoided where possible.

  1. Each surround is checked first.
  2. We rake out the old mastic and clean the joint.
  3. We fill deep gaps so the new mastic is not too thick.
  4. We point the joint with sand mastic by hand.
  5. We finish the mastic to a tidy line.

Preparing for the visit

  • Let us know if you’ve seen damp or leaks
  • Tell us about access, such as stairs, a lift or high-level joints
  • Keep children and pets away from the work area

How to get a quote

We don’t publish a price list, as no two jobs are quite the same. Instead, we give you a clear price for your job. To get started, ring 0345 464 0079 or drop us an email.

Ask for a quote

Advice

Sand mastic in Weyhill: local notes

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 Church of St Michael and All Angels, the windows may be timber, sash or later replacements, and each needs the right sealant against the wall.

Weyhill is about 3 miles west of Andover, in Hampshire. Homes, rented property, offices and hotels in Weyhill can book us for sand mastic. Every job comes with our one-year guarantee. Our Hampshire coverage runs to 683 places, and Weyhill is one of them. For nearby work, see our Southampton page (22 miles or so).

We cover every part of the SP11 postcode area for sand mastic. Streets in the area include Michaelmas Drove, Ordnance Lane and Amesbury Road, and we cover them all. If you’re just outside Weyhill, we cover Mullenspond (1 mile south-west), Fyfield (1 mile west), East Cholderton (1 mile south-west), Thruxton (1 mile south-west) and Penton Grafton (1 mile north-east). Further out, we also cover Winchester (15 miles south-east), Andover (3 miles east), Hyde (15 miles south-east), Tidworth (5 miles west), Weeke (14 miles south-east) and Stanmore (15 miles south-east).

Landmarks near Weyhill

Around Weyhill, our work takes us to homes and buildings near The Weyhill Fair pub. The closest station to Weyhill is Andover station, roughly 2.9 miles east. Other landmarks nearby include Andover Museum (3.6 miles east) and Ludgershall Castle (4 miles north-west). Not far away are Quarley Hill and Anton Lakes.

Map of Weyhill © OpenStreetMap contributors

Different surfaces, different methods

Tenement and terrace windows

Windows above ground floor need the right access. Let us know the floor and we’ll confirm access.

Brick reveals

Gaps between frame and brick let in rain and draughts. New mastic seals the gap.

Landlord and commercial work in Weyhill

Mouldy or split sealant often shows up at the end of a tenancy, and it’s quick to put right between tenancies. Several properties can be quoted together.

From a single let to a portfolio, the work is the same standard: old sealant fully removed, joints prepared properly and a 12-month guarantee.

Do you need sand mastic in Weyhill?

Previous repairs in cement or silicone often trap water or crack away. They do not move with the timber and we normally remove them.

These are the problems we are asked about most:

  • A silicone bead on a sash window that spoils the look
  • Tired mastic found when preparing windows for paint
  • Cracked mastic round a front door frame
  • Crumbling sand mastic round a window

If you let a flat or house near Andover station, cracked sand mastic around sash windows lets in the draughts tenants complain about.

What to look for in a quote

  • Whether you can choose the colour
  • Are they insured?
  • Whether they seal over old material or remove it
  • What guarantee comes with the work

How to choose a mastic man

When something else is needed

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

  • Masonry that needs repairing
  • Timber that has rotted
  • Broken panes

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

Surfaces we seal

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

Weyhill: your questions answered

I let a flat near Andover station. Can you help?

Yes, we work for letting agents and landlords. You can call 0345 464 0079 or send us an email with the address and a few details, and we will give you a fixed price before we start.

Is Weyhill within the area you cover?

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

Do you take out the old sealant first?

Yes, always, and completely. New sealant will not bond properly to old, so any old material comes out before anything new goes in.

Can I do it myself?

Some simple jobs can be done by a careful DIYer. Most DIY failures come from sealing over old material, wet joints or too much sealant.

How long does the job take?

That depends on the amount of work, but most jobs take anything from a few hours to a full day, depending on how many windows. We will tell you when we quote.

What do you need from me for a quote?

A short description and the location, with photos by email if possible. If we need more, we will ask.

Can old silicone round a sash window be swapped for sand mastic?

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

Can you seal over the old sealant?

No, because it fails. We remove every bit of old sealant first.

DIY versus a professional finish

If you’ve already had a go yourself, that is fine. We cut it out and start again, so just mention it when you contact us.

If you’re set on DIY, put the effort into preparation: take out all the old sealant, make sure the joint is clean and dry, and give it the full cure time. If it does not work out, we can still put it right.

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