Hampshire · England

Sand mastic for sash & case windows in Durrants, Hampshire

We cover Durrants for traditional burnt sand mastic around sash and case windows and doors in stone and brick. Old material cut out, joints cleaned and sealed neatly.

  • Mastic that needs renewing before redecorating
  • Wind and rain getting in round a sash window
  • A silicone bead on a sash window that spoils the look

Trusted sand mastic in Durrants

What we cannot put right

We will always be straight with you, so here’s what new sealant will not do:

  • Crumbling stone or brickwork round the window
  • Broken panes
  • Planning or listed building consent (your local planning authority decides)

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

Joints and surfaces we work on

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

Sand mastic for homes and businesses in Durrants

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. Common call-outs are for old sand mastic that has cracked, crumbled or fallen out and cement or filler used on old window joints that has cracked, across sash and case windows, period & listed homes and stone surrounds.

In a village or hamlet like Durrants, older cottages and farmhouses often have timber windows set in stone or brick. Not every older frame suits a modern silicone bead, and sometimes a traditional sand mastic is the better choice.

You are covered for a year from the day we finish. If anything is not right with it, ring 0345 464 0079 or send us an email.

Location
Durrants (PO9)
Wider area
Hampshire
Cover
A year, on every job
Quotes
A clear quote up front
Phone
0345 464 0079
Page updated
26 October 2026
Applicator reaching up to seal an external door frame on a sunny day

How to look after the new joints

Good habits help new joints last longer. Our tips:

  • Inspect the joints round the windows every year or so
  • Make sure water runs off the sill
  • Check with your local planning authority if your home is listed
  • Leave the new mastic unpainted

When preparing windows for paint, take care around the mastic. It can be damaged by heavy scraping.

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

Can I do it myself?

A careful DIYer can reseal a simple joint, such as a straightforward joint indoors. The common mistakes are sealing over old sealant, sealing a damp joint and using far too much.

Not every job suits DIY: high-level joints, fire-rated gaps, external movement joints and big jobs need the right product, the right access and the right method.

What happens on the day

Once we’re on site, we compare the joints with what we discussed. If anything is different, we explain it before carrying on. After that, the work takes a few hours for a single window, longer for several. For a village or hamlet like Durrants, the journey is planned in advance: tell us about narrow lanes, gates, long drives and where we can park. Everything for the job comes with us, so a second trip is avoided where possible.

  1. We check the window surrounds and agree which joints need renewing.
  2. Old, loose mastic is raked out and the joint cleaned.
  3. We pack any deep gaps so the mastic sits at the right depth.
  4. The mastic is mixed, pressed into the joint by hand and shaped.
  5. The mastic is finished to sit tidily against the stone or brick.

Preparing for the visit

  • Tell us about any water getting in
  • Keep children and pets away from the work area
  • Mention if the joints have been sealed before

Getting a quote

The more we know about the job, the more useful the quote. Tell us where the job is, what’s wrong and how much there is, and add photos by email if you can.

Get a price

Advice

Why act early in Durrants

Draughts round a sash window aren’t always the sashes. Gaps between the frame and the wall can be just as bad and new mastic seals them. Around Durrants, older homes often have timber in their floors and frames, and water through a failed joint can rot timber if it’s left.

The cost depends on the size of the job, how much old material has to come out and access to the work. You’ll have a clear quote before any work starts.

Why us?

  • Anti-fungal silicone where joints get wet
  • Fully insured
  • A 12-month guarantee on all work
  • We leave the area clean and tidy

Take a look at how sealant jobs are priced or customer reviews.

How the job changes by surface

Timber door frames

Period doors in stone or brick openings are often pointed with sand mastic. The method is the same as for windows.

Stone surrounds

We take care not to mark the stone when the old mastic comes out.

Frames and glazing around Durrants

Durrants is close to the coast, and homes near the sea take more wind-driven rain, with salt in the air closer to the shore. Both are hard on the mastic around older windows and doors, which can dry out and crack sooner where a building faces the weather. 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.

For landlords with property near Rowlands Castle station, older sash windows in a rental need their mastic kept sound to keep the weather out. For site and facilities teams at buildings such as Havant Academy, larger buildings have plenty of frames, and the mastic around each one ages. Homes close to St John the Baptist include some older properties, and the joint between an old wall and a newer frame is normally the first place rain gets in.

Durrants is about 2 miles north-east of Havant, in Hampshire. From the centre of Durrants to the outskirts, sand mastic is available for homes and businesses alike, from flats and houses to offices and hotels. 683 places in Hampshire are on our list. Portsmouth is on our list too, about 7 miles from Durrants.

Every address in PO9 is within our area for sand mastic. Local streets include Whichers Close, Whichers Gate Road and Durrants Road. Other places close to Durrants include Rowlands Castle (1 mile north), Leigh Park (1 mile south-west), Havant (2 miles south-west), Denvilles (2 miles south) and Westbourne (2 miles south-east). Within a short drive, we also cover Gosport (10 miles south-west), Fareham (10 miles west), Horndean (3 miles north-west), Hedge End (15 miles west), Waterlooville (3 miles west) and Petersfield (9 miles north).

Around Durrants

We work in homes and buildings around Sharps Copse Primary and Nursery School, St Albans Church and Robin Hood Inn and the streets around them. For rail, the closest station is Rowlands Castle station, about 0.9 miles north-east of the centre. Nearby you will also find Havant War Memorial Hospital (2 miles south-west) and Havant Museum (2.1 miles south). For a walk, there’s Brook Meadow (Emsworth) and Compton Down.

Map of Durrants © OpenStreetMap contributors

What affects the quote in Durrants

We don’t publish a price list, because jobs vary so much. What we look at:

  • Whether there’s mould to deal with
  • The number of rooms or windows
  • Any working-time requirements on site
  • How much old sealant there is and how hard it is to remove

Instead of a standard rate, we price the job in front of us: how many joints, what’s in them now and how we reach them. You’ll know the price before we begin.

What to tell us for a quote

To make quoting easier, please include:

  • Pictures of the joints, sent by email
  • How many joints, rooms or windows are involved
  • The address or postcode of the job
  • The type of property

For a quick quote, get us on the phone, or email us if that’s easier. Tell us about the joints that need doing and we’ll explain what’s involved and give you a clear quote.

FAQs for Durrants

Do you work for landlords with property near Rowlands Castle station?

Yes, landlords and agents are among the people we work for, and several properties can be quoted together. You can phone 0345 464 0079 or send us an email with the details for a clear quote.

Does the coastal weather in Durrants affect outside sealant?

Coastal weather is harder on outside sealant: there’s more wind-driven rain and, closer to the shore, salt in the air. The right product, a clean joint and the right depth all help it cope.

Is the work guaranteed?

All our work has a 12-month guarantee.

What do you need from me for a quote?

A short description and the location, with pictures by email if possible. We’ll ask anything else we need to know.

Does someone need to be in?

We need access to the joints, so we’ll agree that with you when we book. For inside work, that normally means someone being in.

How long does sand mastic take to go off?

It forms a skin fairly soon, then hardens over a longer period. Timing depends on the weather and the joint.

Is there any odour?

Sometimes, a little. It fades as the sealant cures.

Will it make a mess?

Not at all. The area is protected while we work and cleaned up afterwards.

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